Commit Graph

12281 Commits

Author SHA1 Message Date
Junio C Hamano
b15667bbdc Merge branch 'js/larger-timestamps'
Some platforms have ulong that is smaller than time_t, and our
historical use of ulong for timestamp would mean they cannot
represent some timestamp that the platform allows.  Invent a
separate and dedicated timestamp_t (so that we can distingiuish
timestamps and a vanilla ulongs, which along is already a good
move), and then declare uintmax_t is the type to be used as the
timestamp_t.

* js/larger-timestamps:
  archive-tar: fix a sparse 'constant too large' warning
  use uintmax_t for timestamps
  date.c: abort if the system time cannot handle one of our timestamps
  timestamp_t: a new data type for timestamps
  PRItime: introduce a new "printf format" for timestamps
  parse_timestamp(): specify explicitly where we parse timestamps
  t0006 & t5000: skip "far in the future" test when time_t is too limited
  t0006 & t5000: prepare for 64-bit timestamps
  ref-filter: avoid using `unsigned long` for catch-all data type
2017-05-16 11:51:59 +09:00
Junio C Hamano
883247c2fc Merge branch 'jn/clone-add-empty-config-from-command-line'
"git clone --config var=val" is a way to populate the
per-repository configuration file of the new repository, but it did
not work well when val is an empty string.  This has been fixed.

* jn/clone-add-empty-config-from-command-line:
  clone: handle empty config values in -c
2017-05-16 11:51:56 +09:00
Junio C Hamano
f0858342fe Merge branch 'rs/large-zip'
"git archive --format=zip" learned to use zip64 extension when
necessary to go beyond the 4GB limit.

* rs/large-zip:
  t5004: require 64-bit support for big ZIP tests
  archive-zip: set version field for big files correctly
  archive-zip: support files bigger than 4GB
  archive-zip: support archives bigger than 4GB
  archive-zip: write ZIP dir entry directly to strbuf
  archive-zip: use strbuf for ZIP directory
  archive-zip: add tests for big ZIP archives
2017-05-16 11:51:55 +09:00
Junio C Hamano
a1fdc85f41 Merge branch 'ab/clone-no-tags'
"git clone" learned the "--no-tags" option not to fetch all tags
initially, and also set up the tagopt not to follow any tags in
subsequent fetches.

* ab/clone-no-tags:
  tests: rename a test having to do with shallow submodules
  clone: add a --no-tags option to clone without tags
  tests: change "cd ... && git fetch" to "cd &&\n\tgit fetch"
2017-05-16 11:51:54 +09:00
Junio C Hamano
3900254bf2 Merge branch 'sk/status-short-branch-color-config'
The colors in which "git status --short --branch" showed the names
of the current branch and its remote-tracking branch are now
configurable.

* sk/status-short-branch-color-config:
  status: add color config slots for branch info in "--short --branch"
  status: fix missing newline when comment chars are disabled
2017-05-16 11:51:53 +09:00
Junio C Hamano
6ebfa10439 Merge branch 'jt/use-trailer-api-in-commands'
"git cherry-pick" and other uses of the sequencer machinery
mishandled a trailer block whose last line is an incomplete line.
This has been fixed so that an additional sign-off etc. are added
after completing the existing incomplete line.

* jt/use-trailer-api-in-commands:
  sequencer: add newline before adding footers
2017-05-16 11:51:52 +09:00
Junio C Hamano
4b44b7b1df Merge branch 'nd/worktree-kill-parse-ref'
"git gc" did not interact well with "git worktree"-managed
per-worktree refs.

* nd/worktree-kill-parse-ref:
  refs: kill set_worktree_head_symref()
  worktree.c: kill parse_ref() in favor of refs_resolve_ref_unsafe()
  refs: introduce get_worktree_ref_store()
  refs: add REFS_STORE_ALL_CAPS
  refs.c: make submodule ref store hashmap generic
  environment.c: fix potential segfault by get_git_common_dir()
2017-05-16 11:51:51 +09:00
Junio C Hamano
a0ab83ebd8 Merge branch 'dt/gc-ignore-old-gc-logs'
Attempt to allow us notice "fishy" situation where we fail to
remove the temporary directory used during the test.

* dt/gc-ignore-old-gc-logs:
  test-lib: retire $remove_trash variable
  test-lib.sh: do not barf under --debug at the end of the test
  test-lib: abort when can't remove trash directory
2017-05-16 11:51:51 +09:00
Junio C Hamano
f767178a5a Merge branch 'jk/no-null-sha1-in-cache-tree'
Code to update the cache-tree has been tightened so that we won't
accidentally write out any 0{40} entry in the tree object.

* jk/no-null-sha1-in-cache-tree:
  cache-tree: reject entries with null sha1
2017-05-16 11:51:50 +09:00
Jonathan Tan
6489660b4b send-email: support validate hook
Currently, send-email has support for rudimentary e-mail validation.
Allow the user to add support for more validation by providing a
sendemail-validate hook.

Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16 11:13:00 +09:00
René Scharfe
c5a9157393 p0004: don't error out if test repo is too small
Repositories with less than 4000 entries are always handled using a
single thread, causing test-lazy-init-name-hash --multi to error out.
Don't abort the whole test script in that case, but simply skip the
multi-threaded performance check.  We can still use it to compare the
single-threaded speed of different versions in that case.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Acked-by: Jeff Hostetler <git@jeffhostetler.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16 11:11:56 +09:00
René Scharfe
7b0d409eb2 p0004: don't abort if multi-threaded is too slow
If the single-threaded variant beats the multi-threaded one then we may
have a performance bug, but that doesn't justify aborting the test.
Drop that check; we can compare the results for --single and --multi
using the actual performance tests.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Acked-by: Jeff Hostetler <git@jeffhostetler.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16 11:11:52 +09:00
René Scharfe
48a6ace8f5 p0004: use test_perf
The perf test suite (more specifically: t/perf/aggregate.perl) requires
each test script to write test results into a file, otherwise it aborts
when aggregating.  Add actual performance tests with test_perf to allow
p0004 to be run together with other perf scripts.

Calibrate the value for the parameter --count based on the size of the
test repository, in order to get meaningful results with smaller repos
yet still be able to finish the script against huge ones without having
to wait for hours.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Acked-by: Jeff Hostetler <git@jeffhostetler.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16 11:11:48 +09:00
René Scharfe
e1ebb569c6 p0004: avoid using pipes
The return code of commands on the producing end of a pipe is ignored.
Evaluate the outcome of test-lazy-init-name-hash by calling sort
separately.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Acked-by: Jeff Hostetler <git@jeffhostetler.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16 11:11:43 +09:00
René Scharfe
1c002d0a9e p0004: simplify calls of test-lazy-init-name-hash
The test library puts helpers into $PATH, so we can simply call them
without specifying their location.

The suffix $X is also not necessary because .exe files on Windows can be
started without specifying their extension, and on other platforms it's
empty anyway.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Acked-by: Jeff Hostetler <git@jeffhostetler.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16 11:11:21 +09:00
Jonathan Tan
fdb69d33c4 fetch-pack: always allow fetching of literal SHA1s
fetch-pack, when fetching a literal SHA-1 from a server that is not
configured with uploadpack.allowtipsha1inwant (or similar), always
returns an error message of the form "Server does not allow request for
unadvertised object %s". However, it is sometimes the case that such
object is advertised. This situation would occur, for example, if a user
or a script was provided a SHA-1 instead of a branch or tag name for
fetching, and wanted to invoke "git fetch" or "git fetch-pack" using
that SHA-1.

Teach fetch-pack to also check the SHA-1s of the refs in the received
ref advertisement if a literal SHA-1 was given by the user.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-16 10:17:05 +09:00
brian m. carlson
c74271aae7 builtin/log: honor log.decorate
The recent change that introduced autodecorating of refs accidentally
broke the ability of users to set log.decorate = false to override it.
When the git_log_config was traversed a second time with an option other
than log.decorate, the decoration style would be set to the automatic
style, even if the user had already overridden it.  Instead of setting
the option in config parsing, set it in init_log_defaults instead.

Add a test for this case.  The actual additional config option doesn't
matter, but it needs to be something not already set in the
configuration file.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Acked-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-15 11:33:19 +09:00
Jeff King
25cd291963 config: complain about --local outside of a git repo
The "--local" option instructs git-config to read or modify
the repository-level config. This doesn't make any sense if
you're not actually in a repository.

Older versions of Git would blindly try to read or write
".git/config". For reading, this would result in a quiet
failure, since there was no config to read (and thus no
matching config value). Writing would generally fail
noisily, since ".git" was unlikely to exist. But since
b1ef400ee (setup_git_env: avoid blind fall-back to ".git",
2016-10-20), we catch this in the call to git_pathdup() and
die with an assertion.

Dying is the right thing to do, but we should catch the
problem early and give a more human-friendly error message.

Note that even without --local, git-config will sometimes
default to using local repository config (e.g., when
writing). These cases are already protected by similar
checks, and covered by a test in t1308.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-15 11:30:51 +09:00
Jeff King
588a538ae5 setup_git_env: convert die("BUG") to BUG()
Converting to BUG() makes it easier to detect and debug
cases where we hit this assertion. Coupled with a new test
in t1300, this shows that the test suite can detect such
corner cases.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-15 11:30:00 +09:00
Ævar Arnfjörð Bjarmason
62ca75a6b9 perf: add test showing exponential growth in path globbing
Add a test showing that runtimes of the wildmatch() function used for
globbing in git grow exponentially in the face of some pathological
globs.

This issue affects both globs matching filenames via e.g. ls-files,
and globs matching refnames via e.g. for-each-ref.

As noted in the test description this is a test to see whether Git
suffers from the issue noted in an article Russ Cox posted today about
common bugs in various glob implementations:
https://research.swtch.com/glob

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-12 10:07:43 +09:00
Ævar Arnfjörð Bjarmason
91de27c54a perf: add function to setup a fresh test repo
Add a function to setup a fresh test repo via 'git init' to compliment
the existing functions to copy over a normal & large repo.

Some performance tests don't need any existing repository data at all
to be significant, e.g. tests which stress glob matches against single
pathological revisions or files, which I'm about to add in a
subsequent commit.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-12 10:07:42 +09:00
Ævar Arnfjörð Bjarmason
0d75bfe67b tests: fix tests broken under GETTEXT_POISON=YesPlease
The GETTEXT_POISON=YesPlease compile-time testing option added in my
bb946bba76 ("i18n: add GETTEXT_POISON to simulate unfriendly
translator", 2011-02-22) has been slowly bitrotting as strings have
been marked for translation, and new tests have been added without
running it.

I brought this up on the list ("[BUG] test suite broken with
GETTEXT_POISON=YesPlease", [1]) asking whether this mode was useful at
all anymore. At least one person occasionally uses it, and Lars
Schneider offered to change one of the the Travis builds to run in
this mode, so fix up the failing ones.

My test setup runs most of the tests, with the notable exception of
skipping all the p4 tests, so it's possible that there's still some
lurking regressions I haven't fixed.

1. <CACBZZX62+acvi1dpkknadTL827mtCm_QesGSZ=6+UnyeMpg8+Q@mail.gmail.com>

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-11 18:44:38 +09:00
Torsten Bögershausen
c8f7c8b704 t0027: tests are not expensive; remove t0025
The purpose of t0027 is to test all CRLF related conversions at "git
checkout" and "git add".  Running t0027 under Git for Windows takes
3-4 minutes, so the whole script had been marked as "EXPENSIVE".

However, the "Git for Windows" fork overrides this since 2014:
"t0027 is marked expensive, but really, for MinGW we want to run
these tests always."

The test seems not to be expensive on other platforms at all: it
takes less than 14 seconds under Linux, and 63 seconds under Mac Os
X, and this is more or less the same with a SSD or a spinning disk.

So let's drop the "EXPENSIVE" prereq.

While at it, retire t0025; recent "stress" tests show that t0025 is
flaky, reported by Lars Schneider <larsxschneider@gmail.com>, but
all tests in t0025 are covered by t0027 already.

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10 19:15:08 -07:00
Brandon Williams
bdab972153 submodule: add die_in_unpopulated_submodule function
Currently 'git add' is the only command which dies when launched from an
unpopulated submodule (the place-holder directory for a submodule which
hasn't been checked out).  This is triggered implicitly by passing the
PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE flag to 'parse_pathspec()'.

Instead make this desire more explicit by creating a function
'die_in_unpopulated_submodule()' which dies if the provided 'prefix' has
a leading path component which matches a submodule in the the index.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10 14:47:39 +09:00
Johannes Schindelin
2779f66505 t4051: mark supporting files as requiring LF-only line endings
The test t4051-diff-function-context.sh passes on Linux when
core.autocrlf=true even without marking its support files as LF-only,
but they fail when core.autocrlf=true in Git for Windows' SDK.

The reason is that `grep ... >file.c.new` will keep CR/LF line endings
on Linux (obviously treating CRs as if they were regular characters),
but will be converted to LF-only line endings with MSYS2's grep that is
used in Git for Windows.

As we do not want to validate the way the available `grep` works, let's
just mark the input as LF-only and move on.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10 13:32:51 +09:00
Johannes Schindelin
614f4f0f35 Fix the remaining tests that failed with core.autocrlf=true
The test suite is mainly developed on Linux and MacOSX, which is the
reason that nobody thought to mark files as LF-only as needed.

The symptom is a test suite that fails left and right when being checked
out using Git for Windows (which defaults to core.autocrlf=true).

Mostly, the problems stem from Git's (LF-only) output being compared to
hard-coded files that are checked out with line endings according to
core.autocrlf (which is of course incorrect). This includes the two test
files in t/diff-lib/, README and COPYING.

This patch can be validated even on Linux by using this cadence:

	git config core.autocrlf true
	rm .git/index && git stash
	make -j15 DEVELOPER=1 test

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10 13:32:51 +09:00
Johannes Schindelin
8a7f8bedf3 t3901: move supporting files into t/t3901/
The current convention is to either generate files on the fly in tests,
or to use supporting files taken from a t/tNNNN/ directory (where NNNN
matches the test's number, or the number of the test from which we
borrow supporting files).

The test t3901-i18n-patch.sh was obviously introduced before that
convention was in full swing, hence its supporting files still lived in
t/t3901-8859-1.txt and t/t3901-utf8.txt, respectively.

Let's adjust to the current convention.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10 13:32:51 +09:00
Jonathan Tan
cbaf82cc6b receive-pack: verify push options in cert
In commit f6a4e61 ("push: accept push options", 2016-07-14), send-pack
was taught to include push options both within the signed cert (if the
push is a signed push) and outside the signed cert; however,
receive-pack ignores push options within the cert, only handling push
options outside the cert.

Teach receive-pack, in the case that push options are provided for a
signed push, to verify that the push options both within the cert and
outside the cert are consistent.

This sets in stone the requirement that send-pack redundantly send its
push options in 2 places, but I think that this is better than the
alternatives. Sending push options only within the cert is
backwards-incompatible with existing Git servers (which read push
options only from outside the cert), and sending push options only
outside the cert means that the push options are not signed for.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10 13:18:28 +09:00
Junio C Hamano
5840eb9d14 doc: replace more gmane links
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-09 21:13:13 -07:00
Stefan Beller
33de716387 diff: enable indent heuristic by default
The feature was included in v2.11 (released 2016-11-29) and we got no
negative feedback. Quite the opposite, all feedback we got was positive.

Turn it on by default. Users who dislike the feature can turn it off
by setting diff.indentHeuristic (which also configures plumbing commands,
see prior patches).

The change to t/t4051-diff-function-context.sh is needed because the
heuristic shifts the changed hunk in the patch.  To get the same result
regardless of the heuristic configuration, we modify the test file
differently:  We insert a completely new line after line 2, instead of
simply duplicating it.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Marc Branchaud <marcnarc@xiplink.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-09 12:24:35 +09:00
Marc Branchaud
37590ce3c5 diff: have the diff-* builtins configure diff before initializing revisions
This matches how the diff Porcelain works.  It makes the plumbing commands
respect diff's configuration options, such as indentHeuristic, because
init_revisions() calls diff_setup() which fills in the diff_options struct.

Signed-off-by: Marc Branchaud <marcnarc@xiplink.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-09 12:24:35 +09:00
Junio C Hamano
9b669787fc Merge branch 'jh/verify-index-checksum-only-in-fsck'
* jh/verify-index-checksum-only-in-fsck:
  t1450: avoid use of "sed" on the index, which is a binary file
2017-05-09 12:17:42 +09:00
Jeff King
da5a1f8100 t5310: fix "; do" style
Our usual shell style is to put the "do" of a loop on its
own line, like:

  while $cond
  do
          something
  done

instead of:

  while $cond; do
          something
  done

We have a bit of both in our code base, but the former is
what's in CodingGuidelines (and outnumbers the latter in t/
by about 6:1).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-09 12:09:03 +09:00
Jeff King
9df4a6074a pack-objects: disable pack reuse for object-selection options
If certain options like --honor-pack-keep, --local, or
--incremental are used with pack-objects, then we need to
feed each potential object to want_object_in_pack() to see
if it should be filtered out. But when the bitmap
reuse_packfile optimization is in effect, we do not call
that function at all, and in fact skip adding the objects to
the to_pack list entirely.  This means we have a bug: for
certain requests we will silently ignore those options and
include objects in that pack that should not be there.

The problem has been present since the inception of the
pack-reuse code in 6b8fda2db (pack-objects: use bitmaps when
packing objects, 2013-12-21), but it was unlikely to come up
in practice.  These options are generally used for on-disk
packing, not transfer packs (which go to stdout), but we've
never allowed pack reuse for non-stdout packs (until
645c432d6, we did not even use bitmaps, which the reuse
optimization relies on; after that, we explicitly turned it
off when not packing to stdout).

We can fix this by just disabling the reuse_packfile
optimization when the options are in use. In theory we could
teach the pack-reuse code to satisfy these checks, but it's
not worth the complexity. The purpose of the optimization is
to keep the amount of per-object work we do to a minimum.
But these options inherently require us to search for other
copies of each object, drowning out any benefit of the
pack-reuse optimization. But note that the optimizations
from 56dfeb626 (pack-objects: compute local/ignore_pack_keep
early, 2016-07-29) happen before pack-reuse, meaning that
specifying "--honor-pack-keep" in a repository with no .keep
files can still follow the fast path.

There are tests in t5310 that check these options with
bitmaps and --stdout, but they didn't catch the bug, and
it's hard to adapt them to do so.

One problem is that they don't use --delta-base-offset;
without that option, we always disable the reuse
optimization entirely. It would be fine to add it in (it
actually makes the test more realistic), but that still
isn't quite enough.

The other problem is that the reuse code is very picky; it
only kicks in when it can reuse most of a pack, starting
from the first byte. So we'd have to start from a fully
repacked and bitmapped state to trigger it. But the tests
for these options use a much more subtle state; they want to
be sure that the want_object_in_pack() code is allowing some
objects but not others. Doing a full repack runs counter to
that.

So this patch adds new tests at the end of the script which
create the fully-packed state and make sure that each option
is not fooled by reusable pack.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-09 12:07:24 +09:00
brian m. carlson
a9dbc17910 tree: convert parse_tree_indirect to struct object_id
Convert parse_tree_indirect to take a pointer to struct object_id.
Update all the callers.  This transformation was achieved using the
following semantic patch and manual updates to the declaration and
definition.  Update builtin/checkout.c manually as well, since it uses a
ternary expression not handled by the semantic patch.

@@
expression E1;
@@
- parse_tree_indirect(E1.hash)
+ parse_tree_indirect(&E1)

@@
expression E1;
@@
- parse_tree_indirect(E1->hash)
+ parse_tree_indirect(E1)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 15:12:58 +09:00
Christian Couder
de950c5773 p3400: add perf tests for rebasing many changes
Rebasing onto many changes is interesting, but it's also
interesting to see what happens when rebasing many changes.

And while at it, let's also look at the impact of using a
split index.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 10:50:43 +09:00
Stefan Beller
5a5221427c diff: recurse into nested submodules for inline diff
When fd47ae6a5b (diff: teach diff to display submodule difference with an
inline diff, 2016-08-31) was introduced, we did not think of recursing
into nested submodules.

When showing the inline diff for submodules, automatically recurse
into nested submodules as well with inline submodule diffs.

Signed-off-by: Stefan Beller <sbeller@google.com>
Acked-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08 09:44:54 +09:00
Stefan Beller
218c883783 submodule: properly recurse for read-tree and checkout
We forgot to prepare the submodule env, which is only a problem for
nested submodules. See 2e5d6503bd (ls-files: fix recurse-submodules
with nested submodules, 2017-04-13) for further explanation.

To come up with a proper test for this, we'd need to look at nested
submodules just as in that given commit. It turns out we're lucky
and these tests already exist, but are marked as failing. We need
to pass `--recurse-submodules` to read-tree additionally to make
these tests pass. Passing that flag alone would not make the tests
pass, such that this covers testing for the bug fix of the submodule
env as well.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-04 13:42:05 +09:00
Jonathan Nieder
db4eca1fea clone: handle empty config values in -c
"git clone --config" uses the following incantation to add an item to
a config file, instead of replacing an existing value:

	git_config_set_multivar_gently(key, value, "^$", 0)

As long as no existing value matches the regex ^$, that works as
intended and adds to the config.  When a value is empty, though, it
replaces the existing value.

Noticed while trying to set credential.helper during a clone to use a
specific helper without inheriting from ~/.gitconfig and
/etc/gitconfig.  That is, I ran

	git clone -c credential.helper= \
		-c credential.helper=myhelper \
		https://example.com/repo

intending to produce the configuration

	[credential]
		helper =
		helper = myhelper

Without this patch, the 'helper =' line is not included and the
credential helper from /etc/gitconfig gets used.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-02 11:02:37 +09:00
brian m. carlson
e0a9280404 Convert struct cache_tree to use struct object_id
Convert the sha1 member of struct cache_tree to struct object_id by
changing the definition and applying the following semantic patch, plus
the standard object_id transforms:

@@
struct cache_tree E1;
@@
- E1.sha1
+ E1.oid.hash

@@
struct cache_tree *E1;
@@
- E1->sha1
+ E1->oid.hash

Fix up one reference to active_cache_tree which was not automatically
caught by Coccinelle.  These changes are prerequisites for converting
parse_object.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-02 10:46:41 +09:00
Junio C Hamano
0998b648d6 Merge branch 'sh/rebase-i-reread-todo-after-exec'
"git rebase -i" failed to re-read the todo list file when the
command specified with the `exec` instruction updated it.

* sh/rebase-i-reread-todo-after-exec:
  rebase -i: reread the todo list if `exec` touched it
2017-05-01 14:14:44 +09:00
Junio C Hamano
d92dbf1934 Merge branch 'jk/submodule-init-segv-fix'
Fix a segv in 'submodule init' when url is not given for a submodule.

* jk/submodule-init-segv-fix:
  submodule_init: die cleanly on submodules without url defined
2017-05-01 14:14:44 +09:00
Junio C Hamano
d9dfed9e47 Merge branch 'ab/align-perf-descriptions'
Output from perf tests have been updated to align their titles.

* ab/align-perf-descriptions:
  t/perf: correctly align non-ASCII descriptions in output
2017-05-01 14:14:42 +09:00
Ævar Arnfjörð Bjarmason
1524ccdc18 tests: rename a test having to do with shallow submodules
Rename the t5614-clone-submodules.sh test to
t5614-clone-submodules-shallow.sh. It's not a general test of
submodules, but of shallow cloning in relation to submodules. Move it
to create another similar t56*-clone-submodules-*.sh test.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01 11:09:46 +09:00
Ævar Arnfjörð Bjarmason
0dab2468ee clone: add a --no-tags option to clone without tags
Add a --no-tags option to clone without fetching any tags.

Without this change there's no easy way to clone a repository without
also fetching its tags.

When supplying --single-branch the primary remote branch will be
cloned, but in addition tags will be followed & retrieved. Now
--no-tags can be added --single-branch to clone a repository without
tags, and which only tracks a single upstream branch.

This option works without --single-branch as well, and will do a
normal clone but not fetch any tags.

Many git commands pay some fixed overhead as a function of the number
of references. E.g. creating ~40k tags in linux.git will cause a
command like `git log -1 >/dev/null` to run in over a second instead
of in a matter of milliseconds, in addition numerous other things will
slow down, e.g. "git log <TAB>" with the bash completion will slowly
show ~40k references instead of 1.

The user might want to avoid all of that overhead to simply use a
repository like that to browse the "master" branch, or something like
a CI tool might want to keep that one branch up-to-date without caring
about any other references.

Without this change the only way of accomplishing this was either by
manually tweaking the config in a fresh repository:

    git init git &&
    cat >git/.git/config <<EOF &&
    [remote "origin"]
        url = git@github.com:git/git.git
        tagOpt = --no-tags
        fetch = +refs/heads/master:refs/remotes/origin/master
    [branch "master"]
        remote = origin
        merge = refs/heads/master
    EOF
    cd git &&
    git pull

Which requires hardcoding the "master" name, which may not be the main
--single-branch would have retrieved, or alternatively by setting
tagOpt=--no-tags right after cloning & deleting any existing tags:

    git clone --single-branch git@github.com:git/git.git &&
    cd git &&
    git config remote.origin.tagOpt --no-tags &&
    git tag -l | xargs git tag -d

Which of course was also subtly buggy if --branch was pointed at a
tag, leaving the user in a detached head:

    git clone --single-branch --branch v2.12.0 git@github.com:git/git.git &&
    cd git &&
    git config remote.origin.tagOpt --no-tags &&
    git tag -l | xargs git tag -d

Now all this complexity becomes the much simpler:

    git clone --single-branch --no-tags git@github.com:git/git.git

Or in the case of cloning a single tag "branch":

    git clone --single-branch --branch v2.12.0 --no-tags git@github.com:git/git.git

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01 11:09:44 +09:00
Ævar Arnfjörð Bjarmason
28d67d9a26 tests: change "cd ... && git fetch" to "cd &&\n\tgit fetch"
Change occurrences "cd" followed by "fetch" on a single line to be on
two lines.

This is purely a stylistic change pointed out in code review for an
unrelated patch. Change the these tests use so new tests added later
using the more common style don't look out of place.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01 11:09:42 +09:00
Ramsay Jones
7f1b225153 t7400: add !CYGWIN prerequisite to 'add with \\ in path'
Commit cf9e55f494 ("submodule: prevent backslash expantion in submodule
names", 07-04-2017) added a test which creates a git repository with
some backslash characters in the name. On windows, where the backslash
character is a directory separator, it is not possible to create a
repository with the name 'sub\with\backslash'. (The NTFS filesystem would
probably allow it, but the win32 api does not). The MinGW and Git for
Windows versions of git actually create a repository called 'backslash'
in the sub-directory 'sub/with'.

On cygwin, however, due to the slightly schizophrenic treatment of the
backslash character by cygwin-git, this test fails at the 'git init'
stage. The git-init command does not recognise the directory separators
in the input path (eg. is_dir_sep('\\') is false), so it does not
attempt to create the leading directories 'sub/with'. (The call to
mkdir('sub\\with\\backslash') actually does recognise the directory
separators, but fails because the 'sub/with' directory doesn't exist).

In order to suppress the test failure (for now), add the !CYGWIN test
prerequisite.

Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01 11:03:46 +09:00
René Scharfe
867e40ff3a t5004: require 64-bit support for big ZIP tests
Check if unzip supports the ZIP64 format and skip the tests that create
big archives otherwise.  Also skip the test that archives a big file on
32-bit platforms because the git object systems can't unpack files
bigger than 4GB there.

Reported-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01 08:46:50 +09:00
Stephen Kent
93fdf301de status: add color config slots for branch info in "--short --branch"
Add color config slots to be used in the status short-format when
displaying local and remote tracking branch information.

[jc: rebased on top of Peff's fix to 'git status' and tweaked the
test to check both local and remote-tracking branch output]

Signed-off-by: Stephen Kent <smkent@smkent.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-28 11:50:52 +09:00
Jeff King
75177c8591 status: fix missing newline when comment chars are disabled
When git-status shows tracking data for the current branch
in the long format, we try to end the stanza with a blank
line. When status.displayCommentPrefix is true, we call
color_fprintf_ln() to do so. But when it's false, we call
the enigmatic:

  fputs("", s->fp);

which does nothing at all! This is a bug from 7d7d68022
(silence a bunch of format-zero-length warnings,
2014-05-04). Prior to that, we called fprintf_ln() with an
empty string. Switching to fputs() meant we needed to
include the "newline in the string, but we didn't.

So you see:

  On branch jk/status-tracking-newline
  Your branch is ahead of 'origin/master' by 1 commit.
  Changes not staged for commit:
          modified:  foo

  Untracked files:
     bar

whereas there should be a blank line before the "Changes not
staged" line.

The fix itself is a one-liner. But we never noticed this
bug because t7508 doesn't exercise the ahead/behind code at
all.  So let's configure an upstream during the initial
setup, which means that the code will be exercised as part
of all of the various invocations in that script. This makes
the diff rather noisy, but should give us good coverage.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-28 11:40:52 +09:00
Johannes Schindelin
dddbad728c timestamp_t: a new data type for timestamps
Git's source code assumes that unsigned long is at least as precise as
time_t. Which is incorrect, and causes a lot of problems, in particular
where unsigned long is only 32-bit (notably on Windows, even in 64-bit
versions).

So let's just use a more appropriate data type instead. In preparation
for this, we introduce the new `timestamp_t` data type.

By necessity, this is a very, very large patch, as it has to replace all
timestamps' data type in one go.

As we will use a data type that is not necessarily identical to `time_t`,
we need to be very careful to use `time_t` whenever we interact with the
system functions, and `timestamp_t` everywhere else.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-27 13:07:39 +09:00
Stephen Hicks
54fd3243da rebase -i: reread the todo list if exec touched it
In the scripted version of the interactive rebase, there was no internal
representation of the todo list; it was re-read before every command.
That allowed the hack that an `exec` command could append (or even
completely rewrite) the todo list.

This hack was broken by the partial conversion of the interactive rebase
to C, and this patch reinstates it.

We also add a small test to verify that this fix does not regress in the
future.

Signed-off-by: Stephen Hicks <sdh@google.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-27 10:56:26 +09:00
Jonathan Tan
44dc738a39 sequencer: add newline before adding footers
When encountering a commit message that does not end in a newline,
sequencer does not complete the line before determining if a blank line
should be added.  This causes the "(cherry picked..." and sign-off lines
to sometimes appear on the same line as the last line of the commit
message.

This behavior was introduced by commit 967dfd4 ("sequencer: use
trailer's trailer layout", 2016-11-29). However, a revert of that commit
would not resolve this issue completely: prior to that commit, a
conforming footer was deemed to be non-conforming by
has_conforming_footer() if there was no terminating newline, resulting
in both conforming and non-conforming footers being treated the same
when they should not be.

Resolve this issue, both for conforming and non-conforming footers, and
in both do_pick_commit() and append_signoff(), by always adding a
newline to the commit message if it does not end in one before checking
the footer for conformity.

Reported-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-26 17:48:50 -07:00
Jeff Hostetler
4d9bc37fbe t1450: avoid use of "sed" on the index, which is a binary file
The previous step added a path zzzzzzzz to the index, and then used
"sed" to replace this string to yyyyyyyy to create a test case where
the checksum at the end of the file does not match the contents.

Unfortunately, use of "sed" on a non-text file is not portable.
Instead, use a Perl script that seeks to the end and modifies the
last byte of the file (where we _know_ stores the trailing
checksum).

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-27 09:41:19 +09:00
Junio C Hamano
e31159746e Merge branch 'nd/worktree-add-lock'
Allow to lock a worktree immediately after it's created. This helps
prevent a race between "git worktree add; git worktree lock" and
"git worktree prune".

* nd/worktree-add-lock:
  worktree add: add --lock option
2017-04-26 15:39:12 +09:00
Junio C Hamano
f70b541188 Merge branch 'ab/completion-push-delete-ref'
The completion script (in contrib/) learned to complete "git push
--delete b<TAB>" to complete branch name to be deleted.

* ab/completion-push-delete-ref:
  completion: expand "push --delete <remote> <ref>" for refs on that <remote>
2017-04-26 15:39:09 +09:00
Junio C Hamano
6cbc478d83 Merge branch 'jh/add-index-entry-optim'
"git checkout" that handles a lot of paths has been optimized by
reducing the number of unnecessary checks of paths in the
has_dir_name() function.

* jh/add-index-entry-optim:
  read-cache: speed up has_dir_name (part 2)
  read-cache: speed up has_dir_name (part 1)
  read-cache: speed up add_index_entry during checkout
  p0006-read-tree-checkout: perf test to time read-tree
  read-cache: add strcmp_offset function
2017-04-26 15:39:07 +09:00
Junio C Hamano
c9672ba4c8 Merge branch 'nd/conditional-config-in-early-config'
The recently introduced conditional inclusion of configuration did
not work well when early-config mechanism was involved.

* nd/conditional-config-in-early-config:
  config: correct file reading order in read_early_config()
  config: handle conditional include when $GIT_DIR is not set up
  config: prepare to pass more info in git_config_with_options()
2017-04-26 15:39:05 +09:00
Junio C Hamano
46bdfa3975 Merge branch 'ab/push-cas-doc-n-test'
Doc update.

* ab/push-cas-doc-n-test:
  push: document & test --force-with-lease with multiple remotes
2017-04-26 15:39:05 +09:00
Junio C Hamano
44427a0c18 Merge branch 'ps/pathspec-empty-prefix-origin'
A recent update broke "git add -p ../foo" from a subdirectory.

* ps/pathspec-empty-prefix-origin:
  pathspec: honor `PATHSPEC_PREFIX_ORIGIN` with empty prefix
2017-04-26 15:39:03 +09:00
Junio C Hamano
da4c600730 Merge branch 'pc/t2027-git-to-pipe-cleanup'
Having a git command on the upstream side of a pipe in a test
script will hide the exit status from the command, which may cause
us to fail to notice a breakage; rewrite tests in a script to avoid
this issue.

* pc/t2027-git-to-pipe-cleanup:
  t2027: avoid using pipes
2017-04-26 15:39:02 +09:00
Junio C Hamano
768c7cb710 Merge branch 'gb/rebase-signoff'
"git rebase" learns "--signoff" option.

* gb/rebase-signoff:
  rebase: pass --[no-]signoff option to git am
  builtin/am: fold am_signoff() into am_append_signoff()
  builtin/am: honor --signoff also when --rebasing
2017-04-26 15:39:02 +09:00
Brandon Williams
940283101c run-command: restrict PATH search to executable files
In some situations run-command will incorrectly try (and fail) to
execute a directory instead of an executable file.  This was observed by
having a directory called "ssh" in $PATH before the real ssh and trying
to use ssh protoccol, reslting in the following:

	$ git ls-remote ssh://url
	fatal: cannot exec 'ssh': Permission denied

It ends up being worse and run-command will even try to execute a
non-executable file if it preceeds the executable version of a file on
the PATH.  For example, if PATH=~/bin1:~/bin2:~/bin3 and there exists a
directory 'git-hello' in 'bin1', a non-executable file 'git-hello' in
bin2 and an executable file 'git-hello' (which prints "Hello World!") in
bin3 the following will occur:

	$ git hello
	fatal: cannot exec 'git-hello': Permission denied

This is due to only checking 'access()' when locating an executable in
PATH, which doesn't distinguish between files and directories.  Instead
use 'is_executable()' which check that the path is to a regular,
executable file.  Now run-command won't try to execute the directory or
non-executable file 'git-hello':

	$ git hello
	Hello World!

which matches what execvp(3) would have done when asked to execute
git-hello with such a $PATH.

Reported-by: Brian Hatfield <bhatfield@google.com>
Signed-off-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-25 23:17:36 -07:00
Junio C Hamano
06478dab4c test-lib: retire $remove_trash variable
The convention "$remove_trash is set to the trash directory that is
used during the test, so that it will be removed at the end, but
under --debug option we set the varilable to empty string to
preserve the directory" made sense back when it was introduced, as
there was no $TRASH_DIRECTORY variable.  These days, since no tests
looks at the variable, it is obscure and even risks that by mistake
the variable gets used for something else (e.g. remove_trash=yes)
and cause us misbehave.  Worse yet, remove_trash was not initialized
to an empty string at the beginning, so a stray environment variable
the user has could have affected the logic when "--debug" is in use.

Rewrite the clean-up sequence in test_done helper to explicitly
check the $debug condition and remove the trash directory using
the $TRASH_DIRECTORY variable.

Note that "go to the directory one level above the trash and then
remove it" is kept and this is deliverate; test_at_end_hook_ will
keep running from the expected location, and also some platforms may
not like a directory that is serving as the $cwd of a still-active
process removed.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 23:45:51 -07:00
Junio C Hamano
4d0912a206 test-lib.sh: do not barf under --debug at the end of the test
The original did "does $remove_trash exist?  Then go one level above
and remove it".  There was no problem under "--debug", where
the variable is left empty, as the first "test -d $remove_trash" would
have said "No, it doesn't".

With the check implemented in the previous step, we'd always get an
error under "--debug".

Noticed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 23:39:47 -07:00
René Scharfe
4cdf3f9d84 archive-zip: support files bigger than 4GB
Write a zip64 extended information extra field for big files as part of
their local headers and as part of their central directory headers.
Also write a zip64 version of the data descriptor in that case.

If we're streaming then we don't know the compressed size at the time we
write the header.  Deflate can end up making a file bigger instead of
smaller if we're unlucky.  Write a local zip64 header already for files
with a size of 2GB or more in this case to be on the safe side.

Both sizes need to be included in the local zip64 header, but the extra
field for the directory must only contain 64-bit equivalents for 32-bit
values of 0xffffffff.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 22:10:51 -07:00
René Scharfe
af95749f9b archive-zip: support archives bigger than 4GB
Add a zip64 extended information extra field to the central directory
and emit the zip64 end of central directory records as well as locator
if the offset of an entry within the archive exceeds 4GB.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 22:10:51 -07:00
René Scharfe
758c1f9d1b archive-zip: add tests for big ZIP archives
Test the creation of ZIP archives bigger than 4GB and containing files
bigger than 4GB.  They are marked as EXPENSIVE because they take quite a
while and because the first one needs a bit more than 4GB of disk space
to store the resulting archive.

The big archive in the first test is made up of a tree containing
thousands of copies of a small file.  Yet the test has to write out the
full archive because unzip doesn't offer a way to read from stdin.

The big file in the second test is provided as a zipped pack file to
avoid writing another 4GB file to disk and then adding it.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 21:43:21 -07:00
Nguyễn Thái Ngọc Duy
d026a25657 refs: kill set_worktree_head_symref()
70999e9cec (branch -m: update all per-worktree HEADs - 2016-03-27)
added this function in order to update HEADs of all relevant
worktrees, when a branch is renamed.

It, as a public ref api, kind of breaks abstraction when it uses
internal functions of files backend. With the introduction of
refs_create_symref(), we can move back pretty close to the code before
70999e9cec, where create_symref() was used for updating HEAD.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 21:28:55 -07:00
Nguyễn Thái Ngọc Duy
fa099d2322 worktree.c: kill parse_ref() in favor of refs_resolve_ref_unsafe()
The manual parsing code is replaced with a call to refs_resolve_ref_unsafe().
The manual parsing code must die because only refs/files-backend.c
should do that.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 21:28:55 -07:00
Jeff King
627fde1025 submodule_init: die cleanly on submodules without url defined
When we init a submodule, we try to die when it has no URL
defined:

  url = xstrdup(sub->url);
  if (!url)
	  die(...);

But that's clearly nonsense. xstrdup() will never return
NULL, and if sub->url is NULL, we'll segfault.

These two bits of code need to be flipped, so we check
sub->url before looking at it.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24 19:00:15 -07:00
Junio C Hamano
2d646e3e1f Merge branch 'jk/ls-files-recurse-submodules-fix'
"ls-files --recurse-submodules" did not quite work well in a
project with nested submodules.

* jk/ls-files-recurse-submodules-fix:
  ls-files: fix path used when recursing into submodules
  ls-files: fix recurse-submodules with nested submodules
2017-04-23 22:07:57 -07:00
Junio C Hamano
b30cf6761a Merge branch 'km/t1400-modernization'
Code cleanup.

* km/t1400-modernization:
  t1400: use consistent style for test_expect_success calls
2017-04-23 22:07:52 -07:00
Junio C Hamano
9f1384f711 Merge branch 'jk/quarantine-received-objects'
Add finishing touches to a recent topic.

* jk/quarantine-received-objects:
  refs: reject ref updates while GIT_QUARANTINE_PATH is set
  receive-pack: document user-visible quarantine effects
  receive-pack: drop tmp_objdir_env from run_update_hook
2017-04-23 22:07:52 -07:00
Junio C Hamano
5bceab4113 Merge branch 'bw/submodule-with-bs-path'
"git submodule" script does not work well with strange pathnames.
Protect it from a path with slashes in them, at least.

* bw/submodule-with-bs-path:
  submodule: prevent backslash expantion in submodule names
2017-04-23 22:07:50 -07:00
Junio C Hamano
cdfe138b36 Merge branch 'jh/verify-index-checksum-only-in-fsck'
The index file has a trailing SHA-1 checksum to detect file
corruption, and historically we checked it every time the index
file is used.  Omit the validation during normal use, and instead
verify only in "git fsck".

* jh/verify-index-checksum-only-in-fsck:
  read-cache: force_verify_index_checksum
2017-04-23 22:07:49 -07:00
Junio C Hamano
8b6bba6663 Merge branch 'jh/string-list-micro-optim'
The string-list API used a custom reallocation strategy that was
very inefficient, instead of using the usual ALLOC_GROW() macro,
which has been fixed.

* jh/string-list-micro-optim:
  string-list: use ALLOC_GROW macro when reallocing string_list
2017-04-23 22:07:47 -07:00
Junio C Hamano
a2e2c04683 Merge branch 'nd/conditional-config-include'
$GIT_DIR may in some cases be normalized with all symlinks resolved
while "gitdir" path expansion in the pattern does not receive the
same treatment, leading to incorrect mismatch.  This has been fixed.

* nd/conditional-config-include:
  config: resolve symlinks in conditional include's patterns
  path.c: and an option to call real_path() in expand_user_path()
2017-04-23 22:07:46 -07:00
Junio C Hamano
848d9a9bb7 Merge branch 'tb/doc-eol-normalization'
Doc update.

* tb/doc-eol-normalization:
  gitattributes.txt: document how to normalize the line endings
2017-04-23 22:07:45 -07:00
Ævar Arnfjörð Bjarmason
db7ed0f20c t/perf: correctly align non-ASCII descriptions in output
Change the test descriptions from being treated as binary blobs by
perl to being treated as UTF-8. This ensures that e.g. a test
description like "æ" is counted as 1 character, not 2.

I have WIP performance tests for non-ASCII grep patterns on another
topic that are affected by this.

Now instead of:

    $ ./run p0000-perf-lib-sanity.sh
    [...]
    0000.4: export a weird var                                    0.00(0.00+0.00)
    0000.5: éḿíẗ ńöń-ÁŚĆÍÍ ćḧáŕáćẗéŕś   0.00(0.00+0.00)
    0000.7: important variables available in subshells            0.00(0.00+0.00)
    [...]

We emit:

    [...]
    0000.4: export a weird var                                 0.00(0.00+0.00)
    0000.5: éḿíẗ ńöń-ÁŚĆÍÍ ćḧáŕáćẗéŕś                          0.00(0.00+0.00)
    0000.7: important variables available in subshells         0.00(0.00+0.00)
    [...]

Fixes code originally added in 342e9ef2d9 ("Introduce a performance
testing framework", 2012-02-17).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23 21:33:15 -07:00
Johannes Schindelin
cb71f8bdb5 PRItime: introduce a new "printf format" for timestamps
Currently, Git's source code treats all timestamps as if they were
unsigned longs. Therefore, it is okay to write "%lu" when printing them.

There is a substantial problem with that, though: at least on Windows,
time_t is *larger* than unsigned long, and hence we will want to switch
away from the ill-specified `unsigned long` data type.

So let's introduce the pseudo format "PRItime" (currently simply being
defined to "lu") to make it easier to change the data type used for
timestamps.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23 20:19:15 -07:00
Johannes Schindelin
1aeb7e756c parse_timestamp(): specify explicitly where we parse timestamps
Currently, Git's source code represents all timestamps as `unsigned
long`. In preparation for using a more appropriate data type, let's
introduce a symbol `parse_timestamp` (currently being defined to
`strtoul`) where appropriate, so that we can later easily switch to,
say, use `strtoull()` instead.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23 20:19:15 -07:00
Jeff King
a96d3cc3f6 cache-tree: reject entries with null sha1
We generally disallow null sha1s from entering the index,
due to 4337b5856 (do not write null sha1s to on-disk index,
2012-07-28). However, we loosened that in 83bd7437c
(write_index: optionally allow broken null sha1s,
2013-08-27) so that tools like filter-branch could be used
to repair broken history.

However, we should make sure that these broken entries do
not get propagated into new trees. For most entries, we'd
catch them with the missing-object check (since presumably
the null sha1 does not exist in our object database). But
gitlink entries do not need reachability, so we may blindly
copy the entry into a bogus tree.

This patch rejects all null sha1s (with the same "invalid
entry" message that missing objects get) when building trees
from the index. It does so even for non-gitlinks, and even
when "write-tree" is given the --missing-ok flag. The null
sha1 is a special sentinel value that is already rejected in
trees by fsck; whether the object exists or not, it is an
error to put it in a tree.

Note that for this to work, we must also avoid reusing an
existing cache-tree that contains the null sha1. This patch
does so by just refusing to write out any cache tree when
the index contains a null sha1. This is blunter than we need
to be; we could just reject the subtree that contains the
offending entry. But it's not worth the complexity. The
behavior is unchanged unless you have a broken index entry,
and even then we'd refuse the whole index write unless the
emergency GIT_ALLOW_NULL_SHA1 is in use. And even then the
end result is only a performance drop (any write-tree will
have to generate the whole cache-tree from scratch).

The tests bear some explanation.

The existing test in t7009 doesn't catch this problem,
because our index-filter runs "git rm --cached", which will
try to rewrite the updated index and barf on the bogus
entry. So we never even make it to write-tree.  The new test
there adds a noop index-filter, which does show the problem.

The new tests in t1601 are slightly redundant with what
filter-branch is doing under the hood in t7009. But as
they're much more direct, they're easier to reason about.
And should filter-branch ever change or go away, we'd want
to make sure that these plumbing commands behave sanely.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23 18:21:59 -07:00
Stefan Beller
35b96d1de8 builtin/reset: add --recurse-submodules switch
git-reset is yet another working tree manipulator, which should
be taught about submodules.

When a user uses git-reset and requests to recurse into submodules,
this will reset the submodules to the object name as recorded in the
superproject, detaching the HEADs.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23 17:32:39 -07:00
Ævar Arnfjörð Bjarmason
723c1d526f completion: expand "push --delete <remote> <ref>" for refs on that <remote>
Change the completion of "push --delete <remote> <ref>" to complete
refs on that <remote>, not all refs.

Before this cloning git.git and doing "git push --delete origin
p<TAB>" will complete nothing, since a fresh clone of git.git will
have no "pu" branch, whereas origin/p<TAB> will uselessly complete
origin/pu, but fully qualified references aren't accepted by
"--delete".

Now p<TAB> will complete as "pu". The completion of giving --delete
later, e.g. "git push origin --delete p<TAB>" remains unchanged, this
is a bug, but is a general existing limitation of the bash completion,
and not how git-push is documented, so I'm not fixing that case, but
adding a failing TODO test for it.

The testing code was supplied by SZEDER Gábor in
<20170421122832.24617-1-szeder.dev@gmail.com> with minor setup
modifications on my part.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: SZEDER Gábor <szeder.dev@gmail.com>
Test-code-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23 17:30:59 -07:00
SZEDER Gábor
df4c0d1a79 test-lib: abort when can't remove trash directory
We had two similar bugs in the tests sporadically triggering error
messages during the removal of the trash directory, see commits
bb05510e5 (t5510: run auto-gc in the foreground, 2016-05-01) and
ef09036cf (t6500: wait for detached auto gc at the end of the test
script, 2017-04-13).  The test script succeeded nonetheless, because
these errors are ignored during housekeeping in 'test_done'.

However, such an error is a sign that something is fishy in the test
script.  Print an error message and abort the test script when the
trash directory can't be removed successfully or is already removed,
because that's unexpected and we would prefer somebody notice and
figure out why.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23 16:55:46 -07:00
Johannes Schindelin
efac8ac84b t0006 & t5000: skip "far in the future" test when time_t is too limited
Git's source code refers to timestamps as unsigned long, which is
ill-defined, as there is no guarantee about the number of bits that
data type has.

In preparation of switching to another data type that is large enough
to hold "far in the future" dates, we need to prepare the t0006-date.sh
script for the case where we *still* cannot format those dates if the
system library uses 32-bit time_t.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-20 22:07:15 -07:00
Johannes Schindelin
a07fb0507f t0006 & t5000: prepare for 64-bit timestamps
Git's source code refers to timestamps as unsigned longs. On 32-bit
platforms, as well as on Windows, unsigned long is not large enough to
capture dates that are "absurdly far in the future".

It is perfectly valid by the C standard, of course, for the `long` data
type to refer to 32-bit integers. That is why the `time_t` data type
exists: so that it can be 64-bit even if `long` is 32-bit. Git's source
code simply uses an incorrect data type for timestamps, is all.

The earlier quick fix 6b9c38e14c (t0006: skip "far in the future" test
when unsigned long is not long enough, 2016-07-11) papered over this
issue simply by skipping the respective test cases on platforms where
they would fail due to the data type in use.

This quick fix, however, tests for *long* to be 64-bit or not. What we
need, though, is a test that says whether *whatever data type we use for
timestamps* is 64-bit or not.

The same quick fix was used to handle the similar problem where Git's
source code uses `unsigned long` to represent size, instead of `size_t`,
conflating the two issues.

So let's just add another prerequisite to test specifically whether
timestamps are represented by a 64-bit data type or not. Later, after we
switch to a larger data type, we can flip that prerequisite to test
`time_t` instead of `long`.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-20 22:07:15 -07:00
Nguyễn Thái Ngọc Duy
507e6e9eec worktree add: add --lock option
As explained in the document. This option has an advantage over the
command sequence "git worktree add && git worktree lock": there will be
no gap that somebody can accidentally "prune" the new worktree (or soon,
explicitly "worktree remove" it).

"worktree add" does keep a lock on while it's preparing the worktree.
If --lock is specified, this lock remains after the worktree is created.

Suggested-by: David Taylor <David.Taylor@dell.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-20 17:59:02 -07:00
Brandon Williams
c2d3119d7b t0061: run_command executes scripts without a #! line
Add a test to 't0061-run-command.sh' to ensure that run_command can
continue to execute scripts which don't include a '#!' line.

As shell scripts are not natively executable on Windows, we use a
workaround to check "#!" when running scripts from Git.  As this
test requires the platform (not with Git's help) to run scripts
without "#!", skipt it on Windows.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-20 17:55:32 -07:00
Junio C Hamano
8377f34540 Merge branch 'jh/memihash-opt'
Hotfix for a topic that is already in 'master'.

* jh/memihash-opt:
  p0004: make perf test executable
  t3008: skip lazy-init test on a single-core box
  test-online-cpus: helper to return cpu count
  name-hash: fix buffer overrun
2017-04-19 21:37:25 -07:00
Junio C Hamano
c96e3ce625 Merge branch 'sf/putty-w-args'
* sf/putty-w-args:
  connect.c: handle errors from split_cmdline
2017-04-19 21:37:24 -07:00
Junio C Hamano
c2cbb30fc0 Merge branch 'ld/p4-current-branch-fix'
"git p4" used "name-rev HEAD" when it wants to learn what branch is
checked out; it should use "symbolic-ref HEAD".

* ld/p4-current-branch-fix:
  git-p4: don't use name-rev to get current branch
  git-p4: add read_pipe_text() internal function
  git-p4: add failing test for name-rev rather than symbolic-ref
2017-04-19 21:37:23 -07:00
Junio C Hamano
442136f742 Merge branch 'dt/gc-ignore-old-gc-logs'
* dt/gc-ignore-old-gc-logs:
  t6500: wait for detached auto gc at the end of the test script
2017-04-19 21:37:22 -07:00
Junio C Hamano
eb3af74e93 Merge branch 'jk/no-looking-at-dotgit-outside-repo'
Clean up fallouts from recent tightening of the set-up sequence,
where Git barfs when repository information is accessed without
first ensuring that it was started in a repository.

* jk/no-looking-at-dotgit-outside-repo:
  test-read-cache: setup git dir
  has_sha1_file: don't bother if we are not in a repository
2017-04-19 21:37:20 -07:00
Junio C Hamano
5ab8f2261f Merge branch 'nd/files-backend-git-dir'
The "submodule" specific field in the ref_store structure is
replaced with a more generic "gitdir" that can later be used also
when dealing with ref_store that represents the set of refs visible
from the other worktrees.

* nd/files-backend-git-dir: (28 commits)
  refs.h: add a note about sorting order of for_each_ref_*
  t1406: new tests for submodule ref store
  t1405: some basic tests on main ref store
  t/helper: add test-ref-store to test ref-store functions
  refs: delete pack_refs() in favor of refs_pack_refs()
  files-backend: avoid ref api targeting main ref store
  refs: new transaction related ref-store api
  refs: add new ref-store api
  refs: rename get_ref_store() to get_submodule_ref_store() and make it public
  files-backend: replace submodule_allowed check in files_downcast()
  refs: move submodule code out of files-backend.c
  path.c: move some code out of strbuf_git_path_submodule()
  refs.c: make get_main_ref_store() public and use it
  refs.c: kill register_ref_store(), add register_submodule_ref_store()
  refs.c: flatten get_ref_store() a bit
  refs: rename lookup_ref_store() to lookup_submodule_ref_store()
  refs.c: introduce get_main_ref_store()
  files-backend: remove the use of git_path()
  files-backend: add and use files_ref_path()
  files-backend: add and use files_reflog_path()
  ...
2017-04-19 21:37:19 -07:00
Junio C Hamano
74a74beee9 Merge branch 'lt/mailinfo-in-body-header-continuation'
If a patch e-mail had its first paragraph after an in-body header
indented (even after a blank line after the in-body header line),
the indented line was mistook as a continuation of the in-body
header.  This has been fixed.

* lt/mailinfo-in-body-header-continuation:
  mailinfo: fix in-body header continuations
2017-04-19 21:37:15 -07:00
Junio C Hamano
872e2cf00a Merge branch 'bw/push-options-recursively-to-submodules'
"git push --recurse-submodules --push-option=<string>" learned to
propagate the push option recursively down to pushes in submodules.

* bw/push-options-recursively-to-submodules:
  push: propagate remote and refspec with --recurse-submodules
  submodule--helper: add push-check subcommand
  remote: expose parse_push_refspec function
  push: propagate push-options with --recurse-submodules
  push: unmark a local variable as static
2017-04-19 21:37:14 -07:00
Junio C Hamano
b1081e4004 Merge branch 'bc/object-id'
Conversion from unsigned char [40] to struct object_id continues.

* bc/object-id:
  Documentation: update and rename api-sha1-array.txt
  Rename sha1_array to oid_array
  Convert sha1_array_for_each_unique and for_each_abbrev to object_id
  Convert sha1_array_lookup to take struct object_id
  Convert remaining callers of sha1_array_lookup to object_id
  Make sha1_array_append take a struct object_id *
  sha1-array: convert internal storage for struct sha1_array to object_id
  builtin/pull: convert to struct object_id
  submodule: convert check_for_new_submodule_commits to object_id
  sha1_name: convert disambiguate_hint_fn to take object_id
  sha1_name: convert struct disambiguate_state to object_id
  test-sha1-array: convert most code to struct object_id
  parse-options-cb: convert sha1_array_append caller to struct object_id
  fsck: convert init_skiplist to struct object_id
  builtin/receive-pack: convert portions to struct object_id
  builtin/pull: convert portions to struct object_id
  builtin/diff: convert to struct object_id
  Convert GIT_SHA1_RAWSZ used for allocation to GIT_MAX_RAWSZ
  Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ
  Define new hash-size constants for allocating memory
2017-04-19 21:37:13 -07:00
Junio C Hamano
c703555cc8 Merge branch 'sb/submodule-short-status'
The output from "git status --short" has been extended to show
various kinds of dirtyness in submodules differently; instead of to
"M" for modified, 'm' and '?' can be shown to signal changes only
to the working tree of the submodule but not the commit that is
checked out.

* sb/submodule-short-status:
  submodule.c: correctly handle nested submodules in is_submodule_modified
  short status: improve reporting for submodule changes
  submodule.c: stricter checking for submodules in is_submodule_modified
  submodule.c: port is_submodule_modified to use porcelain 2
  submodule.c: convert is_submodule_modified to use strbuf_getwholeline
  submodule.c: factor out early loop termination in is_submodule_modified
  submodule.c: use argv_array in is_submodule_modified
2017-04-19 21:37:12 -07:00
Jeff Hostetler
350d870143 p0006-read-tree-checkout: perf test to time read-tree
Created t/perf/repos/many-files.sh to generate large, but
artificial repositories.

Created t/perf/inflate-repo.sh to alter an EXISTING repo
to have a set of large commits.  This can be used to create
a branch with 1M+ files in repositories like git.git or
linux.git, but with more realistic content.  It does this
by making multiple copies of the entire worktree in a series
of sub-directories.

The branch name and ballast structure created by both scripts
match, so either script can be used to generate very large
test repositories for the following perf test.

Created t/perf/p0006-read-tree-checkout.sh to measure
performance on various read-tree, checkout, and update-index
operations.  This test can run using either normal repos or
ones from the above scripts.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-19 20:33:01 -07:00
Ævar Arnfjörð Bjarmason
f17d642d3b push: document & test --force-with-lease with multiple remotes
Document & test for cases where there are two remotes pointing to the
same URL, and a background fetch & subsequent `git push
--force-with-lease` shouldn't clobber un-updated references we haven't
fetched.

Some editors like Microsoft's VSC have a feature to auto-fetch in the
background, this bypasses the protections offered by
--force-with-lease & --force-with-lease=<refname>, as noted in the
documentation being added here.

See the 'Tools that do an automatic fetch defeat "git push
--force-with-lease"' (<1491617750.2149.10.camel@mattmccutchen.net>)
git mailing list thread for more details. Jakub Narębski suggested
this method of adding another remote to bypass this edge case,
document that & add a test for it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-19 18:53:06 -07:00
Nguyễn Thái Ngọc Duy
e145a0bc9b config: correct file reading order in read_early_config()
Config file reading order is important because each file can override
values in the previous files and this is expected behavior. Normally
we read in this order, all in do_git_config_sequence():

1. $HOME/.gitconfig
2. $GIT_DIR/config
3. config from command line

However in read_early_config() the order may be swapped a bit if
setup_git_directory() has not been called:

1. $HOME/.gitconfig
2. $GIT_DIR/config is NOT read because .git dir is not found _yet_
3. config from command line
4. $GIT_DIR/config is now READ (after discover_git_directory() call)

The reading at step 4 could override config at step 3, which is not
the expectation.

Now that we could pass the .git dir around, we could feed
discover_git_directory() back to step 2, so that it works again, and
remove step 4.

Noticed-by: Jeff King <peff@peff.net>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-19 18:50:30 -07:00
Brandon Williams
1fd1a919ce t5550: use write_script to generate post-update hook
The post-update hooks created in t5550-http-fetch-dumb.sh is missing the
"!#/bin/sh" line which can cause issues with portability.  Instead
create the hook using the 'write_script' function which includes the
proper "#!" line.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-18 21:27:08 -07:00
Stefan Beller
f2d48994dc submodule.c: submodule_move_head works with broken submodules
Early on in submodule_move_head just after the check if the submodule is
initialized, we need to check if the submodule is populated correctly.

If the submodule is initialized but doesn't look like it is populated,
this is a red flag and can indicate multiple sorts of failures:
(1) The submodule may be recorded at an object name, that is missing.
(2) The submodule '.git' file link may be broken and it is not pointing
    at a repository.

In both cases we want to complain to the user in the non-forced mode,
and in the forced mode ignoring the old state and just moving the
submodule into its new state with a fixed '.git' file link.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-18 21:18:29 -07:00
Stefan Beller
823bab09c6 submodule.c: uninitialized submodules are ignored in recursive commands
This was an oversight when working on the working tree modifying commands
recursing into submodules.

To test for uninitialized submodules, introduce another submodule
"uninitialized_sub". Adding it via `submodule add` will activate the
submodule in the preparation area (in create_lib_submodule_repo we
setup all the things in submodule_update_repo), but the later tests
will use a new testing repo that clones the preparation repo
in which the new submodule is not initialized.

By adding it to the branch "add_sub1", which is the starting point of
all other branches, we have wide coverage.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-18 21:18:29 -07:00
Giuseppe Bilotta
9f79524a6a rebase: pass --[no-]signoff option to git am
This makes it easy to sign off a whole patchset before submission.

Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-18 20:37:07 -07:00
Christian Couder
c9d4999155 p0004: make perf test executable
It looks like in 89c3b0ad43 (name-hash: add perf test for lazy_init_name_hash,
2017-03-23) p0004 was not created with the execute unix rights.
Let's fix that.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Acked-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-18 19:18:18 -07:00
Jacob Keller
2cfe66a8ee ls-files: fix path used when recursing into submodules
Don't assume that the current working directory is the root of the
repository. Correctly generate the path for the recursing child
processes by building it from the work_tree() root instead. Otherwise if
we run ls-files using --git-dir or --work-tree it will not work
correctly as it attempts to change directory into a potentially invalid
location. Best case, it doesn't exist and we produce an error. Worst
case we cd into the wrong location and unknown behavior occurs.

Add a new test which highlights this possibility.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-18 18:01:41 -07:00
Nguyễn Thái Ngọc Duy
2185fde563 config: handle conditional include when $GIT_DIR is not set up
If setup_git_directory() and friends have not been called,
get_git_dir() (because of includeIf.gitdir:XXX) would lead to

    die("BUG: setup_git_env called without repository");

There are two cases when a config file could be read before $GIT_DIR
is located.

The first one is check_repository_format(), where we read just the one
file $GIT_DIR/config to check if we could understand this
repository. This case should be safe. We do not parse include
directives, which can only be triggered from git_config_with_options,
but setup code uses a lower-level function. The concerned variables
should never be hidden away behind includes anyway.

The second one is triggered in check_pager_config() when we're about
to run an external git command. We might be able to find $GIT_DIR in
this case, which is exactly what read_early_config() does (and also is
what check_pager_config() uses). Conditional includes and
get_git_dir() could be triggered by the first
git_config_with_options() call there, before discover_git_directory()
is used as a fallback $GIT_DIR detection.

Detect this special "early reading" case, pass down the $GIT_DIR,
either from previous setup or detected by discover_git_directory(),
and make conditional include use it.

Noticed-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-17 19:18:43 -07:00
Jacob Keller
2e5d6503bd ls-files: fix recurse-submodules with nested submodules
Since commit e77aa336f1 ("ls-files: optionally recurse into
submodules", 2016-10-07) ls-files has known how to recurse into
submodules when displaying files.

Unfortunately this fails for certain cases, including when nesting more
than one submodule, called from within a submodule that itself has
submodules, or when the GIT_DIR environemnt variable is set.

Prior to commit b58a68c1c1 ("setup: allow for prefix to be passed to
git commands", 2017-03-17) this resulted in an error indicating that
--prefix and --super-prefix were incompatible.

After this commit, instead, the process loops forever with a GIT_DIR set
to the parent and continuously reads the parent submodule files and
recursing forever.

Fix this by preparing the environment properly for submodules when
setting up the child process. This is similar to how other commands such
as grep behave.

This was not caught by the original tests because the scenario is
avoided if the submodules are created separately and not stored as the
standard method of putting the submodule git directory under
.git/modules/<name>. We can update the test to show the failure by the
addition of "git submodule absorbgitdirs" to the test case. However,
note that this new test would run forever without the necessary fix in
this patch.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-17 19:04:16 -07:00
Kyle Meyer
1cec9c2db2 t1400: use consistent style for test_expect_success calls
Structure calls as

    test_expect_success 'description' '
    	body
    '

Use double quotes for the description if it requires parameter
expansion or contains a single quote.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 23:42:59 -07:00
Junio C Hamano
7b612c966e Merge branch 'js/difftool-builtin'
Code cleanup.

* js/difftool-builtin:
  difftool: fix use-after-free
  difftool: avoid strcpy
2017-04-16 23:29:34 -07:00
Junio C Hamano
1776a710d6 Merge branch 'sb/show-diff-for-submodule-in-diff-fix'
"git diff --submodule=diff" learned to work better in a project
with a submodule that in turn has its own submodules.

* sb/show-diff-for-submodule-in-diff-fix:
  diff: submodule inline diff to initialize env array.
2017-04-16 23:29:32 -07:00
Junio C Hamano
dfe46c5ce6 Merge branch 'jk/loose-object-info-report-error'
Update error handling for codepath that deals with corrupt loose
objects.

* jk/loose-object-info-report-error:
  index-pack: detect local corruption in collision check
  sha1_loose_object_info: return error for corrupted objects
2017-04-16 23:29:30 -07:00
Luke Diamand
eff451101d git-p4: don't use name-rev to get current branch
git-p4 was using "git name-rev" to find out the current branch.

That is not safe, since if multiple branches or tags point at
the same revision, the result obtained might not be what is
expected.

Instead use "git symbolic-ref".

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 21:13:26 -07:00
Luke Diamand
3d553cceb5 git-p4: add failing test for name-rev rather than symbolic-ref
Using name-rev to find the current git branch means that git-p4
does not correctly get the current branch name if there are
multiple branches pointing at HEAD, or a tag.

This change adds a test case which demonstrates the problem.
Configuring which branches are allowed to be submitted from goes
wrong, as git-p4 gets confused about which branch is in use.

This appears to be the only place that git-p4 actually cares
about the current branch.

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 21:13:23 -07:00
Brandon Williams
cf9e55f494 submodule: prevent backslash expantion in submodule names
When attempting to add a submodule with backslashes in its name 'git
submodule' fails in a funny way.  We can see that some of the
backslashes are expanded resulting in a bogus path:

git -C main submodule add ../sub\\with\\backslash
fatal: repository '/tmp/test/sub\witackslash' does not exist
fatal: clone of '/tmp/test/sub\witackslash' into submodule path

To solve this, convert calls to 'read' to 'read -r' in git-submodule.sh
in order to prevent backslash expantion in submodule names.

Reported-by: Joachim Durchholz <jo@durchholz.org>
Signed-off-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 20:09:36 -07:00
René Scharfe
bccb22cbb1 test-read-cache: setup git dir
b1ef400e (setup_git_env: avoid blind fall-back to ".git") made programs
that tried to access a repository without initializing properly die with
a diagnostic message.  One offender is test-read-cache, which is used in
p0002.  Fix it by calling setup_git_directory() before accessing the
index.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 20:05:11 -07:00
Jeff King
d8f4481c4f refs: reject ref updates while GIT_QUARANTINE_PATH is set
As documented in git-receive-pack(1), updating a ref from
within the pre-receive hook is dangerous and can corrupt
your repo. This patch forbids ref updates entirely during
the hook to make it harder for adventurous hook writers to
shoot themselves in the foot.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 18:19:18 -07:00
SZEDER Gábor
ef09036cf3 t6500: wait for detached auto gc at the end of the test script
The last test in 't6500-gc', 'background auto gc does not run if
gc.log is present and recent but does if it is old', added in
a831c06a2 (gc: ignore old gc.log files, 2017-02-10), may sporadically
trigger an error message from the test harness:

  rm: cannot remove 'trash directory.t6500-gc/.git/objects': Directory not empty

The test in question ends with executing an auto gc in the backround,
which occasionally takes so long that it's still running when
'test_done' is about to remove the trash directory.  This 'rm -rf
$trash' in the foreground might race with the detached auto gc to
create and delete files and directories, and gc might (re-)create a
path that 'rm' already visited and removed, triggering the above error
message when 'rm' attempts to remove its parent directory.

Commit bb05510e5 (t5510: run auto-gc in the foreground, 2016-05-01)
fixed the same problem in a different test script by simply
disallowing background gc.  Unfortunately, what worked there is not
applicable here, because the purpose of this test is to check the
behavior of a detached auto gc.

Make sure that the test doesn't continue before the gc is finished in
the background with a clever bit of shell trickery:

  - Open fd 9 in the shell, to be inherited by the background gc
    process, because our daemonize() only closes the standard fds 0,
    1 and 2.
  - Duplicate this fd 9 to stdout.
  - Read 'git gc's stdout, and thus fd 9, through a command
    substitution.  We don't actually care about gc's output, but this
    construct has two useful properties:
  - This read blocks until stdout or fd 9 are open.  While stdout is
    closed after the main gc process creates the background process
    and exits, fd 9 remains open until the backround process exits.
  - The variable assignment from the command substitution gets its
    exit status from the command executed within the command
    substitution, i.e. a failing main gc process will cause the test
    to fail.

Note, that this fd trickery doesn't work on Windows, because due to
MSYS limitations the git process only inherits the standard fds 0, 1
and 2 from the shell.  Luckily, it doesn't matter in this case,
because on Windows daemonize() is basically a noop, thus 'git gc
--auto' always runs in the foreground.

And since we can now continue the test reliably after the detached gc
finished, check that there is only a single packfile left at the end,
i.e. that the detached gc actually did what it was supposed to do.
Also add a comment at the end of the test script to warn developers of
future tests about this issue of long running detached gc processes.

Helped-by: Jeff King <peff@peff.net>
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 18:06:50 -07:00
Jeff King
22e5ae5c8e connect.c: handle errors from split_cmdline
Commit e9d9a8a4d (connect: handle putty/plink also in
GIT_SSH_COMMAND, 2017-01-02) added a call to
split_cmdline(), but checks only for a non-zero return to
see if we got any output. Since the function returns
negative values (and a NULL argv) on error, we end up
dereferencing NULL and segfaulting.

Arguably we could report on the parsing error here, but it's
probably not worth it. This is a best-effort attempt to see
if we are using plink. So we can simply return here with
"no, it wasn't plink" and let the shell actually complain
about the bogus quoting.

Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16 17:48:00 -07:00
Jeff Hostetler
a6db3fbb6e read-cache: add strcmp_offset function
Add strcmp_offset() function to also return the offset of the
first change.

Add unit test and helper to verify.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-15 02:21:12 -07:00
Jeff Hostetler
950a234cbd string-list: use ALLOC_GROW macro when reallocing string_list
Use ALLOC_GROW() macro when reallocing a string_list array
rather than simply increasing it by 32.  This is a performance
optimization.

During status on a very large repo and there are many changes,
a significant percentage of the total run time is spent
reallocing the wt_status.changes array.

This change decreases the time in wt_status_collect_changes_worktree()
from 125 seconds to 45 seconds on my very large repository.

This produced a modest gain on my 1M file artificial repo, but
broke even on linux.git.

Test                                            HEAD^^            HEAD
---------------------------------------------------------------------------------------
0005.2: read-tree status br_ballast (1000001)   8.29(5.62+2.62)   8.22(5.57+2.63) -0.8%

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-15 02:04:41 -07:00
Jeff Hostetler
a33fc72fe9 read-cache: force_verify_index_checksum
Teach git to skip verification of the SHA1-1 checksum at the end of
the index file in verify_hdr() which is called from read_index()
unless the "force_verify_index_checksum" global variable is set.

Teach fsck to force this verification.

The checksum verification is for detecting disk corruption, and for
small projects, the time it takes to compute SHA-1 is not that
significant, but for gigantic repositories this calculation adds
significant time to every command.

These effect can be seen using t/perf/p0002-read-cache.sh:

Test                                          HEAD~1            HEAD
--------------------------------------------------------------------------------------
0002.1: read_cache/discard_cache 1000 times   0.66(0.44+0.20)   0.30(0.27+0.02) -54.5%

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-15 00:58:36 -07:00
Patrick Steinhardt
be4dbbbed9 pathspec: honor PATHSPEC_PREFIX_ORIGIN with empty prefix
Previous to commit 5d8f084a5 (pathspec: simpler logic to prefix original
pathspec elements, 2017-01-04), we were always using the computed
`match` variable to perform pathspec matching whenever
`PATHSPEC_PREFIX_ORIGIN` is set. This is for example useful when passing
the parsed pathspecs to other commands, as the computed `match` may
contain a pathspec relative to the repository root. The commit changed
this logic to only do so when we do have an actual prefix and when
literal pathspecs are deactivated.

But this change may actually break some commands which expect passed
pathspecs to be relative to the repository root. One such case is `git
add --patch`, which now fails when using relative paths from a
subdirectory. For example if executing "git add -p ../foo.c" in a
subdirectory, the `git-add--interactive` command will directly pass
"../foo.c" to `git-ls-files`. As ls-files is executed at the
repository's root, the command will notice that "../foo.c" is outside
the repository and fail.

Fix the issue by again using the computed `match` variable when
`PATHSPEC_PREFIX_ORIGIN` is set and global literal pathspecs are
deactivated. Note that in contrast to previous behavior, we will now
always call `prefix_magic` regardless of whether a prefix is actually
set. But this is the right thing to do: when the `match` variable has
been resolved to the repository's root, it will be set to an empty
string. When passing the empty string directly to other commands, it
will result in a warning regarding deprecated empty pathspecs. By always
adding the prefix magic, we will end up with at least the string
":(prefix:0)" and thus avoid the warning.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Duy Nguyen <pclouds@gmail.com>
2017-04-14 23:55:24 -07:00
Nguyễn Thái Ngọc Duy
86f9515708 config: resolve symlinks in conditional include's patterns
$GIT_DIR returned by get_git_dir() is normalized, with all symlinks
resolved (see setup_work_tree function). In order to match paths (or
patterns) against $GIT_DIR char-by-char, they have to be normalized
too. There is a note in config.txt about this, that the user need to
resolve symlinks by themselves if needed.

The problem is, we allow certain path expansion, '~/' and './', for
convenience and can't ask the user to resolve symlinks in these
expansions. Make sure the expanded paths have all symlinks resolved.

PS. The strbuf_realpath(&text, get_git_dir(), 1) is still needed because
get_git_dir() may return relative path.

Noticed-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14 23:51:38 -07:00
Prathamesh Chavan
210e5dba0b t2027: avoid using pipes
Whenever a git command is present in the upstream of a pipe, its failure
gets masked by piping. Hence we should avoid it for testing the
upstream git command. By writing out the output of the git command to
a file, we can test the exit codes of both the commands as a failure exit
code in any command is able to stop the && chain.

Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14 16:55:24 -07:00
Nguyễn Thái Ngọc Duy
adac8115a6 refs.h: add a note about sorting order of for_each_ref_*
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14 03:53:25 -07:00
Nguyễn Thái Ngọc Duy
2269e2a878 t1406: new tests for submodule ref store
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14 03:53:25 -07:00
Nguyễn Thái Ngọc Duy
16feb99d54 t1405: some basic tests on main ref store
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14 03:53:25 -07:00
Nguyễn Thái Ngọc Duy
80f2a6097c t/helper: add test-ref-store to test ref-store functions
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-14 03:53:25 -07:00
Johannes Schindelin
882add136f difftool: fix use-after-free
The left and right base directories were pointed to the buf field of
two strbufs, which were subject to change.

A contrived test case shows the problem where a file with a long enough
name to force the strbuf to grow is up-to-date (hence the code path is
used where the work tree's version of the file is reused), and then a
file that is not up-to-date needs to be written (hence the code path is
used where checkout_entry() uses the previously recorded base_dir that
is invalid by now).

Let's just copy the base_dir strings for use with checkout_entry(),
never touch them until the end, and release them then. This is an easily
verifiable fix (as opposed to the next-obvious alternative: to re-set
base_dir after every loop iteration).

This fixes https://github.com/git-for-windows/git/issues/1124

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-13 17:53:08 -07:00
Torsten Bögershausen
85999743e7 gitattributes.txt: document how to normalize the line endings
The instructions how to normalize the line endings should have been updated
as part of commit 6523728499 'convert: unify the "auto" handling of CRLF',
(but that part never made it into the commit).

Update the documentation in Documentation/gitattributes.txt and add
a test case in t0025.

Reported by Kristian Adrup
https://github.com/git-for-windows/git/issues/954

Signed-off-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-13 15:53:41 -07:00
Kevin Willford
845eec2b64 t3008: skip lazy-init test on a single-core box
The lazy-init codepath will not be exercised uniless threaded.  Skip
the entire test on a single-core box.  Also replace a hard-coded
constant of 2000 (number of cache entries to manifacture for tests)
with a variable with a human readable name.

Signed-off-by: Kevin Willford <kewillf@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-12 23:24:36 -07:00
Jeff Hostetler
e3482ccf27 test-online-cpus: helper to return cpu count
Created helper executable to print the value of online_cpus()
allowing multi-threaded tests to be skipped when appropriate.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-12 23:17:19 -07:00
Linus Torvalds
fd1062e52e mailinfo: fix in-body header continuations
An empty line should stop any pending in-body headers, and start the
actual body parsing.

This also modifies the original test for the in-body headers to actually
have a real commit body that starts with spaces, and changes the test to
check that the long line matches _exactly_, and doesn't get extra data
from the body.

Fixes:6b4b013f1884 ("mailinfo: handle in-body header continuations")
Cc: Jonathan Tan <jonathantanmy@google.com>
Cc: Jeff King <peff@peff.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-11 00:49:40 -07:00
Brandon Williams
06bf4ad1db push: propagate remote and refspec with --recurse-submodules
Teach "push --recurse-submodules" to propagate, if given a name as remote, the
provided remote and refspec recursively to the pushes performed in the
submodules. The push will therefore only succeed if all submodules have a
remote with such a name configured.

Note that "push --recurse-submodules" with a path or URL as remote will not
propagate the remote or refspec and instead use the default remote and refspec
configured in the submodule, preserving the current behavior.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-11 00:45:26 -07:00
Brandon Williams
2a90556dde push: propagate push-options with --recurse-submodules
Teach push --recurse-submodules to propagate push-options recursively to
the pushes performed in the submodules.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-11 00:45:03 -07:00
Junio C Hamano
d9758cf81c Merge branch 'ah/log-decorate-default-to-auto'
The default behaviour of "git log" in an interactive session has
been changed to enable "--decorate".

* ah/log-decorate-default-to-auto:
  log: if --decorate is not given, default to --decorate=auto
2017-04-11 00:21:51 -07:00
Junio C Hamano
d1d3d46146 Merge branch 'ab/ref-filter-no-contains'
"git tag/branch/for-each-ref" family of commands long allowed to
filter the refs by "--contains X" (show only the refs that are
descendants of X), "--merged X" (show only the refs that are
ancestors of X), "--no-merged X" (show only the refs that are not
ancestors of X).  One curious omission, "--no-contains X" (show
only the refs that are not descendants of X) has been added to
them.

* ab/ref-filter-no-contains:
  tag: add tests for --with and --without
  ref-filter: reflow recently changed branch/tag/for-each-ref docs
  ref-filter: add --no-contains option to tag/branch/for-each-ref
  tag: change --point-at to default to HEAD
  tag: implicitly supply --list given another list-like option
  tag: change misleading --list <pattern> documentation
  parse-options: add OPT_NONEG to the "contains" option
  tag: add more incompatibles mode tests
  for-each-ref: partly change <object> to <commit> in help
  tag tests: fix a typo in a test description
  tag: remove a TODO item from the test suite
  ref-filter: add test for --contains on a non-commit
  ref-filter: make combining --merged & --no-merged an error
  tag doc: reword --[no-]merged to talk about commits, not tips
  tag doc: split up the --[no-]merged documentation
  tag doc: move the description of --[no-]merged earlier
2017-04-11 00:21:50 -07:00
Stefan Beller
17b254cda6 diff: submodule inline diff to initialize env array.
David reported:
> When I try to run `git diff --submodule=diff` in a submodule which has
> it's own submodules that have changes I get the error: fatal: bad
> object.

This happens, because we do not properly initialize the environment
in which the diff is run in the submodule. That means we inherit the
environment from the main process, which sets environment variables.
(Apparently we do set environment variables which we do not set
when not in a submodules, i.e. the .git directory is linked)

This commit, just like fd47ae6a5b (diff: teach diff to display
submodule difference with an inline diff, 2016-08-31) introduces bad
test code (i.e. hard coded hash values), which will be cleanup up in
a later patch.

Reported-by: David Parrish <daveparrish@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-02 09:51:03 -07:00
Jeff King
51054177b3 index-pack: detect local corruption in collision check
When we notice that we have a local copy of an incoming
object, we compare the two objects to make sure we haven't
found a collision. Before we get to the actual object
bytes, though, we compare the type and size from
sha1_object_info().

If our local object is corrupted, then the type will be
OBJ_BAD, which obviously will not match the incoming type,
and we'll report "SHA1 COLLISION FOUND" (with capital
letters and everything). This is confusing, as the problem
is not a collision but rather local corruption. We should
report that instead (just like we do if reading the rest of
the object content fails a few lines later).

Note that we _could_ just ignore the error and mark it as a
non-collision. That would let you "git fetch" to replace a
corrupted object. But it's not a very reliable method for
repairing a repository. The earlier want/have negotiation
tries to get the other side to omit objects we already have,
and it would not realize that we are "missing" this
corrupted object. So we're better off complaining loudly
when we see corruption, and letting the user take more
drastic measures to repair (like making a full clone
elsewhere and copying the pack into place).

Note that the test sets transfer.unpackLimit in the
receiving repository so that we use index-pack (which is
what does the collision check). Normally for such a small
push we'd use unpack-objects, which would simply try to
write the loose object, and discard the new one when we see
that there's already an old one.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-01 10:48:11 -07:00
Jeff King
93cff9a978 sha1_loose_object_info: return error for corrupted objects
When sha1_loose_object_info() finds that a loose object file
cannot be stat(2)ed or mmap(2)ed, it returns -1 to signal an
error to the caller.  However, if it found that the loose
object file is corrupt and the object data cannot be used
from it, it stuffs OBJ_BAD into "type" field of the
object_info, but returns zero (i.e., success), which can
confuse callers.

This is due to 052fe5eac (sha1_loose_object_info: make type
lookup optional, 2013-07-12), which switched the return to a
strict success/error, rather than returning the type (but
botched the return).

Callers of regular sha1_object_info() don't notice the
difference, as that function returns the type (which is
OBJ_BAD in this case). However, direct callers of
sha1_object_info_extended() see the function return success,
but without setting any meaningful values in the object_info
struct, leading them to access potentially uninitialized
memory.

The easiest way to see the bug is via "cat-file -s", which
will happily ignore the corruption and report whatever
value happened to be in the "size" variable.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-01 10:45:16 -07:00
Kevin Willford
2a1bd45b2e name-hash: fix buffer overrun
Add check for the end of the entries for the thread partition.
Add test for lazy init name hash with specific directory structure

The lazy init hash name was causing a buffer overflow when the last
entry in the index was multiple folder deep with parent folders that
did not have any files in them.

This adds a test for the boundary condition of the thread partitions
with the folder structure that was triggering the buffer overflow.

The fix was to check if it is the last entry for the thread partition
in the handle_range_dir and not try to use the next entry in the cache.

Signed-off-by: Kevin Willford <kewillf@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31 20:57:18 -07:00
brian m. carlson
910650d2f8 Rename sha1_array to oid_array
Since this structure handles an array of object IDs, rename it to struct
oid_array.  Also rename the accessor functions and the initialization
constant.

This commit was produced mechanically by providing non-Documentation
files to the following Perl one-liners:

    perl -pi -E 's/struct sha1_array/struct oid_array/g'
    perl -pi -E 's/\bsha1_array_/oid_array_/g'
    perl -pi -E 's/SHA1_ARRAY_INIT/OID_ARRAY_INIT/g'

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31 08:33:56 -07:00
brian m. carlson
1b7ba794d2 Convert sha1_array_for_each_unique and for_each_abbrev to object_id
Make sha1_array_for_each_unique take a callback using struct object_id.
Since one of these callbacks is an argument to for_each_abbrev, convert
those as well.  Rename various functions, replacing "sha1" with "oid".

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31 08:33:55 -07:00
brian m. carlson
5d3206d501 Convert sha1_array_lookup to take struct object_id
Convert this function by changing the declaration and definition and
applying the following semantic patch to update the callers:

@@
expression E1, E2;
@@
- sha1_array_lookup(E1, E2.hash)
+ sha1_array_lookup(E1, &E2)

@@
expression E1, E2;
@@
- sha1_array_lookup(E1, E2->hash)
+ sha1_array_lookup(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31 08:33:55 -07:00
brian m. carlson
98a72ddc12 Make sha1_array_append take a struct object_id *
Convert the callers to pass struct object_id by changing the function
declaration and definition and applying the following semantic patch:

@@
expression E1, E2;
@@
- sha1_array_append(E1, E2.hash)
+ sha1_array_append(E1, &E2)

@@
expression E1, E2;
@@
- sha1_array_append(E1, E2->hash)
+ sha1_array_append(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31 08:33:55 -07:00
Junio C Hamano
4b945eea40 Merge branch 'js/rebase-i-reword-to-run-hooks'
A recent update to "rebase -i" stopped running hooks for the "git
commit" command during "reword" action, which has been fixed.

* js/rebase-i-reword-to-run-hooks:
  sequencer: allow the commit-msg hooks to run during a `reword`
  sequencer: make commit options more extensible
  t7504: document regression: reword no longer calls commit-msg
2017-03-30 14:07:17 -07:00
Junio C Hamano
42e1cc517b Merge branch 'ab/case-insensitive-upstream-and-push-marker'
On many keyboards, typing "@{" involves holding down SHIFT key and
one can easily end up with "@{Up..." when typing "@{upstream}".  As
the upstream/push keywords do not appear anywhere else in the syntax,
we can safely accept them case insensitively without introducing
ambiguity or confusion  to solve this.

* ab/case-insensitive-upstream-and-push-marker:
  rev-parse: match @{upstream}, @{u} and @{push} case-insensitively
2017-03-30 14:07:16 -07:00
Junio C Hamano
de8a8ed155 Merge branch 'ab/test-readme-updates'
Doc updates.

* ab/test-readme-updates:
  t/README: clarify the test_have_prereq documentation
  t/README: change "Inside <X> part" to "Inside the <X> part"
  t/README: link to metacpan.org, not search.cpan.org
2017-03-30 14:07:16 -07:00
Junio C Hamano
49a8fe8e96 Merge branch 'rs/freebsd-getcwd-workaround'
FreeBSD implementation of getcwd(3) behaved differently when an
intermediate directory is unreadable/unsearchable depending on the
length of the buffer provided, which our strbuf_getcwd() was not
aware of.  strbuf_getcwd() has been taught to cope with it better.

* rs/freebsd-getcwd-workaround:
  strbuf: support long paths w/o read rights in strbuf_getcwd() on FreeBSD
2017-03-30 14:07:15 -07:00
Junio C Hamano
3736c92558 Merge branch 'bw/recurse-submodules-relative-fix'
A few commands that recently learned the "--recurse-submodule"
option misbehaved when started from a subdirectory of the
superproject.

* bw/recurse-submodules-relative-fix:
  ls-files: fix bug when recursing with relative pathspec
  ls-files: fix typo in variable name
  grep: fix bug when recursing with relative pathspec
  setup: allow for prefix to be passed to git commands
  grep: fix help text typo
2017-03-30 14:07:15 -07:00
Junio C Hamano
bf650608be Merge branch 'sg/completion-refs-speedup'
The refs completion for large number of refs has been sped up,
partly by giving up disambiguating ambiguous refs and partly by
eliminating most of the shell processing between 'git for-each-ref'
and 'ls-remote' and Bash's completion facility.

* sg/completion-refs-speedup:
  completion: speed up branch and tag completion
  completion: fill COMPREPLY directly when completing fetch refspecs
  completion: fill COMPREPLY directly when completing refs
  completion: let 'for-each-ref' sort remote branches for 'checkout' DWIMery
  completion: let 'for-each-ref' filter remote branches for 'checkout' DWIMery
  completion: let 'for-each-ref' strip the remote name from remote branches
  completion: let 'for-each-ref' and 'ls-remote' filter matching refs
  completion: don't disambiguate short refs
  completion: don't disambiguate tags and branches
  completion: support excluding full refs
  completion: support completing fully qualified non-fast-forward refspecs
  completion: support completing full refs after '--option=refs/<TAB>'
  completion: wrap __git_refs() for better option parsing
  completion: remove redundant __gitcomp_nl() options from _git_commit()
2017-03-30 14:07:14 -07:00
Junio C Hamano
a93dcb0a56 Merge branch 'bw/submodule-is-active'
"what URL do we want to update this submodule?" and "are we
interested in this submodule?" are split into two distinct
concepts, and then the way used to express the latter got extended,
paving a way to make it easier to manage a project with many
submodules and make it possible to later extend use of multiple
worktrees for a project with submodules.

* bw/submodule-is-active:
  submodule add: respect submodule.active and submodule.<name>.active
  submodule--helper init: set submodule.<name>.active
  clone: teach --recurse-submodules to optionally take a pathspec
  submodule init: initialize active submodules
  submodule: decouple url and submodule interest
  submodule--helper clone: check for configured submodules using helper
  submodule sync: use submodule--helper is-active
  submodule sync: skip work for inactive submodules
  submodule status: use submodule--helper is-active
  submodule--helper: add is-active subcommand
2017-03-30 14:07:14 -07:00
Stefan Beller
40069d6e3a submodule.c: correctly handle nested submodules in is_submodule_modified
Suppose I have a superproject 'super', with two submodules 'super/sub'
and 'super/sub1'. 'super/sub' itself contains a submodule
'super/sub/subsub'. Now suppose I run, from within 'super':

    echo hi >sub/subsub/stray-file
    echo hi >sub1/stray-file

Currently we get would see the following output in git-status:

    git status --short
     m sub
     ? sub1

With this patch applied, the untracked file in the nested submodule is
displayed as an untracked file on the 'super' level as well.

    git status --short
     ? sub
     ? sub1

This doesn't change the output of 'git status --porcelain=1' for nested
submodules, because its output is always ' M' for either untracked files
or local modifications no matter the nesting level of the submodule.

'git status --porcelain=2' is affected by this change in a nested
submodule, though. Without this patch it would report the direct submodule
as modified and having no untracked files. With this patch it would report
untracked files. Chalk this up as a bug fix.

This bug fix also affects the default output (non-short, non-porcelain)
of git-status, which is not tested here.

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-29 17:37:21 -07:00
Stefan Beller
dd6962dd73 short status: improve reporting for submodule changes
If I add an untracked file to a submodule or modify a tracked file,
currently "git status --short" treats the change in the same way as
changes to the current HEAD of the submodule:

        $ git clone --quiet --recurse-submodules https://gerrit.googlesource.com/gerrit
        $ echo hello >gerrit/plugins/replication/stray-file
        $ sed -i -e 's/.*//' gerrit/plugins/replication/.mailmap
        $ git -C gerrit status --short
         M plugins/replication

This is by analogy with ordinary files, where "M" represents a change
that has not been added yet to the index.  But this change cannot be
added to the index without entering the submodule, "git add"-ing it,
and running "git commit", so the analogy is counterproductive.

Introduce new status letters " ?" and " m" for this.  These are similar
to the existing "??" and " M" but mean that the submodule (not the
parent project) has new untracked files and modified files, respectively.
The user can use "git add" and "git commit" from within the submodule to
add them.

Changes to the submodule's HEAD commit can be recorded in the index with
a plain "git add -u" and are shown with " M", like today.

To avoid excessive clutter, show at most one of " ?", " m", and " M" for
the submodule.  They represent increasing levels of change --- the last
one that applies is shown (e.g., " m" if there are both modified files
and untracked files in the submodule, or " M" if the submodule's HEAD
has been modified and it has untracked files).

While making these changes, we need to make sure to not break porcelain
level 1, which shares code with "status --short".  We only change
"git status --short".

Non-short "git status" and "git status --porcelain=2" already handle
these cases by showing more detail:

        $ git -C gerrit status --porcelain=2
        1 .M S.MU 160000 160000 160000 305c864db28eb0c77c8499bc04c87de3f849cf3c 305c864db28eb0c77c8499bc04c87de3f849cf3c plugins/replication
        $ git -C gerrit status
[...]
        modified:   plugins/replication (modified content, untracked content)

Scripts caring about these distinctions should use --porcelain=2.

Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-29 15:27:54 -07:00
Junio C Hamano
ef1e74065c name-rev: favor describing with tags and use committer date to tiebreak
"git name-rev" assigned a phony "far in the future" date to tips of
refs that are not pointing at tag objects, and favored names based
on a ref with the oldest date.  This made it almost impossible for
an unannotated tags and branches to be counted as a viable base,
which was especially problematic when the command is run with the
"--tags" option.  If an unannotated tag that points at an ancient
commit and an annotated tag that points at a much newer commit
reaches the commit that is being named, the old unannotated tag was
ignored.

Update the "taggerdate" field of the rev-name structure, which is
initialized from the tip of ref, to have the committer date if the
object at the tip of ref is a commit, not a tag, so that we can
optionally take it into account when doing "is this name better?"
comparison logic.

When "name-rev" is run without the "--tags" option, the general
expectation is still to name the commit based on a tag if possible,
but use non-tag refs as fallback, and tiebreak among these non-tag
refs by favoring names with shorter hops from the tip.  The use of a
phony "far in the future" date in the original code was an effective
way to ensure this expectation is held: a non-tag tip gets the same
"far in the future" timestamp, giving precedence to tags, and among
non-tag tips, names with shorter hops are preferred over longer
hops, without taking the "taggerdate" into account.  As we are
taking over the "taggerdate" field to store the committer date for
tips with commits:

 (1) keep the original logic when comparing names based on two refs
     both of which are from refs/tags/;

 (2) favoring a name based on a ref in refs/tags/ hierarchy over
     a ref outside the hierarchy;

 (3) between two names based on a ref both outside refs/tags/, give
     precedence to a name with shorter hops and use "taggerdate"
     only to tie-break.

A change to t4202 is a natural consequence.  The test creates a
commit on a branch "side" and points at it with an unannotated tag
"refs/tags/side-2".  The original code couldn't decide which one to
favor at all, and gave a name based on a branch (simply because
refs/heads/side sorts earlier than refs/tags/side-2).  Because the
updated logic is taught to favor refs in refs/tags/ hierarchy, the
the test is updated to expect to see tags/side-2 instead.

[mjg: open-coded the comparisons in is_better_name(), dropping a
helper macro used in the original]

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Michael J Gruber <git@grubix.eu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-29 10:53:35 -07:00
Junio C Hamano
0330344e0f Merge branch 'jh/memihash-opt'
The name-hash used for detecting paths that are different only in
cases (which matter on case insensitive filesystems) has been
optimized to take advantage of multi-threading when it makes sense.

* jh/memihash-opt:
  name-hash: add test-lazy-init-name-hash to .gitignore
  name-hash: add perf test for lazy_init_name_hash
  name-hash: add test-lazy-init-name-hash
  name-hash: perf improvement for lazy_init_name_hash
  hashmap: document memihash_cont, hashmap_disallow_rehash api
  hashmap: add disallow_rehash setting
  hashmap: allow memihash computation to be continued
  name-hash: specify initial size for istate.dir_hash table
2017-03-28 14:06:00 -07:00
Junio C Hamano
a612436f14 Merge branch 'tg/stash-push-fixup'
Recent enhancement to "git stash push" command to support pathspec
to allow only a subset of working tree changes to be stashed away
was found to be too chatty and exposed the internal implementation
detail (e.g. when it uses reset to match the index to HEAD before
doing other things, output from reset seeped out).  These, and
other chattyness has been fixed.

* tg/stash-push-fixup:
  stash: keep untracked files intact in stash -k
  stash: pass the pathspec argument to git reset
  stash: don't show internal implementation details
2017-03-28 14:05:58 -07:00
Junio C Hamano
e394fa01d6 Merge branch 'sb/checkout-recurse-submodules'
"git checkout" is taught the "--recurse-submodules" option.

* sb/checkout-recurse-submodules:
  builtin/read-tree: add --recurse-submodules switch
  builtin/checkout: add --recurse-submodules switch
  entry.c: create submodules when interesting
  unpack-trees: check if we can perform the operation for submodules
  unpack-trees: pass old oid to verify_clean_submodule
  update submodules: add submodule_move_head
  submodule.c: get_super_prefix_or_empty
  update submodules: move up prepare_submodule_repo_env
  submodules: introduce check to see whether to touch a submodule
  update submodules: add a config option to determine if submodules are updated
  update submodules: add submodule config parsing
  make is_submodule_populated gently
  lib-submodule-update.sh: define tests for recursing into submodules
  lib-submodule-update.sh: replace sha1 by hash
  lib-submodule-update: teach test_submodule_content the -C <dir> flag
  lib-submodule-update.sh: do not use ./. as submodule remote
  lib-submodule-update.sh: reorder create_lib_submodule_repo
  submodule--helper.c: remove duplicate code
  connect_work_tree_and_git_dir: safely create leading directories
2017-03-28 14:05:58 -07:00
Junio C Hamano
88fb4aa23a Merge branch 'sb/t3600-rephrase' into maint
A test retitling.

* sb/t3600-rephrase:
  t3600: rename test to describe its functionality
2017-03-28 13:52:29 -07:00
Junio C Hamano
04b4f7d579 Merge branch 'sb/submodule-update-initial-runs-custom-script' into maint
A test fix.

* sb/submodule-update-initial-runs-custom-script:
  t7406: correct test case for submodule-update initial population
2017-03-28 13:52:29 -07:00
Junio C Hamano
27ee56f9db Merge branch 'jk/quote-env-path-list-component' into maint
A test fix.

* jk/quote-env-path-list-component:
  t5615: fix a here-doc syntax error
2017-03-28 13:52:28 -07:00
Junio C Hamano
110bdbddc8 Merge branch 'st/verify-tag' into maint
A few unterminated here documents in tests were fixed, which in
turn revealed incorrect expectations the tests make. These tests
have been updated.

* st/verify-tag:
  t7004, t7030: fix here-doc syntax errors
2017-03-28 13:52:24 -07:00
Junio C Hamano
57009b1dd9 Merge branch 'js/regexec-buf' into maint
Fix for potential segv introduced in v2.11.0 and later (also
v2.10.2).

* js/regexec-buf:
  pickaxe: fix segfault with '-S<...> --pickaxe-regex'
2017-03-28 13:52:24 -07:00
Junio C Hamano
bfee58c0a5 Merge branch 'dp/filter-branch-prune-empty' into maint
"git filter-branch --prune-empty" drops a single-parent commit that
becomes a no-op, but did not drop a root commit whose tree is empty.

* dp/filter-branch-prune-empty:
  p7000: add test for filter-branch with --prune-empty
  filter-branch: fix --prune-empty on parentless commits
  t7003: ensure --prune-empty removes entire branch when applicable
  t7003: ensure --prune-empty can prune root commit
2017-03-28 13:52:22 -07:00
Junio C Hamano
2b69d3116f Merge branch 'mm/fetch-show-error-message-on-unadvertised-object' into maint
"git fetch" that requests a commit by object name, when the other
side does not allow such an request, failed without much
explanation.

* mm/fetch-show-error-message-on-unadvertised-object:
  fetch-pack: add specific error for fetching an unadvertised object
  fetch_refs_via_pack: call report_unmatched_refs
  fetch-pack: move code to report unmatched refs to a function
2017-03-28 13:52:22 -07:00
Junio C Hamano
41534b626e Merge branch 'jk/interpret-branch-name' into maint
"git branch @" created refs/heads/@ as a branch, and in general the
code that handled @{-1} and @{upstream} was a bit too loose in
disambiguating.

* jk/interpret-branch-name:
  checkout: restrict @-expansions when finding branch
  strbuf_check_ref_format(): expand only local branches
  branch: restrict @-expansions when deleting
  t3204: test git-branch @-expansion corner cases
  interpret_branch_name: allow callers to restrict expansions
  strbuf_branchname: add docstring
  strbuf_branchname: drop return value
  interpret_branch_name: move docstring to header file
  interpret_branch_name(): handle auto-namelen for @{-1}
2017-03-28 13:52:22 -07:00
Junio C Hamano
e25c1229b2 Merge branch 'ab/cond-skip-tests' into maint
A few tests were run conditionally under (rare) conditions where
they cannot be run (like running cvs tests under 'root' account).

* ab/cond-skip-tests:
  gitweb tests: skip tests when we don't have Time::HiRes
  gitweb tests: change confusing "skip_all" phrasing
  cvs tests: skip tests that call "cvs commit" when running as root
2017-03-28 13:52:21 -07:00
Junio C Hamano
bb622de88d Merge branch 'jk/ident-empty' into maint
user.email that consists of only cruft chars should consistently
error out, but didn't.

* jk/ident-empty:
  ident: do not ignore empty config name/email
  ident: reject all-crud ident name
  ident: handle NULL email when complaining of empty name
  ident: mark error messages for translation
2017-03-28 13:52:21 -07:00
Junio C Hamano
252ef8fe9e Merge branch 'jk/delta-chain-limit' into maint
"git repack --depth=<n>" for a long time busted the specified depth
when reusing delta from existing packs.  This has been corrected.

* jk/delta-chain-limit:
  pack-objects: convert recursion to iteration in break_delta_chain()
  pack-objects: enforce --depth limit in reused deltas
2017-03-28 13:52:21 -07:00
Junio C Hamano
930405224f Merge branch 'sg/test-with-stdin' into maint
Teach the "debug" helper used in the test framework that allows a
command to run under "gdb" to make the session interactive.

* sg/test-with-stdin:
  tests: make the 'test_pause' helper work in non-verbose mode
  tests: create an interactive gdb session with the 'debug' helper
2017-03-28 13:52:20 -07:00
Junio C Hamano
c34aa34299 Merge branch 'jk/interop-test' into maint
Picking two versions of Git and running tests to make sure the
older one and the newer one interoperate happily has now become
possible.

* jk/interop-test:
  t/interop: add test of old clients against modern git-daemon
  t: add an interoperability test harness
2017-03-28 13:52:20 -07:00
Junio C Hamano
e0c74e6f38 Merge branch 'jt/perf-updates' into maint
The t/perf performance test suite was not prepared to test not so
old versions of Git, but now it covers versions of Git that are not
so ancient.

* jt/perf-updates:
  t/perf: add fallback for pre-bin-wrappers versions of git
  t/perf: use $MODERN_GIT for all repo-copying steps
  t/perf: export variable used in other blocks
2017-03-28 13:52:19 -07:00
brian m. carlson
57836f10ad test-sha1-array: convert most code to struct object_id
This helper is very small, so convert the entire thing.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-28 09:59:33 -07:00
Johannes Schindelin
b92ff6e814 sequencer: allow the commit-msg hooks to run during a reword
The `reword` command used to call `git commit` in a manner that asks for
the prepare-commit-msg and commit-msg hooks to do their thing.

Converting that part of the interactive rebase to C code introduced the
regression where those hooks were no longer run.

Let's fix this.

Note: the flag is called `VERIFY_MSG` instead of the more intuitive
`RUN_COMMIT_MSG_HOOKS` to indicate that the flag suppresses the
`--no-verify` flag (which may do other things in the future in addition
to suppressing the commit message hooks, too).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27 13:55:13 -07:00
Junio C Hamano
b43942b333 Merge branch 'sb/t3600-rephrase'
A test retitling.

* sb/t3600-rephrase:
  t3600: rename test to describe its functionality
2017-03-27 10:59:28 -07:00
Junio C Hamano
844768a298 Merge branch 'sb/describe-broken'
"git describe --dirty" dies when it cannot be determined if the
state in the working tree matches that of HEAD (e.g. broken
repository or broken submodule).  The command learned a new option
"git describe --broken" to give "$name-broken" (where $name is the
description of HEAD) in such a case.

* sb/describe-broken:
  builtin/describe: introduce --broken flag
2017-03-27 10:59:28 -07:00
Junio C Hamano
4e87565d2a Merge branch 'sb/push-options-via-transport'
Recently we started passing the "--push-options" through the
external remote helper interface; now the "smart HTTP" remote
helper understands what to do with the passed information.

* sb/push-options-via-transport:
  remote-curl: allow push options
  send-pack: send push options correctly in stateless-rpc case
2017-03-27 10:59:27 -07:00
Junio C Hamano
4a2b50a1e3 Merge branch 'km/t1400-modernization'
Code clean-up.

* km/t1400-modernization:
  t1400: use test_when_finished for cleanup
  t1400: remove a set of unused output files
  t1400: use test_path_is_* helpers
  t1400: set core.logAllRefUpdates in "logged by touch" tests
  t1400: rename test descriptions to be unique
2017-03-27 10:59:27 -07:00
Junio C Hamano
a026bde1ac Merge branch 'jk/prefix-filename'
Code clean-up with minor bugfixes.

* jk/prefix-filename:
  bundle: use prefix_filename with bundle path
  prefix_filename: simplify windows #ifdef
  prefix_filename: return newly allocated string
  prefix_filename: drop length parameter
  prefix_filename: move docstring to header file
  hash-object: fix buffer reuse with --path in a subdirectory
2017-03-27 10:59:26 -07:00
Junio C Hamano
09fb53568e Merge branch 'jc/lint-runaway-here-doc'
The test framework learned to detect unterminated here documents.

* jc/lint-runaway-here-doc:
  tests: lint for run-away here-doc
2017-03-27 10:59:25 -07:00
Junio C Hamano
c473af7396 Merge branch 'st/verify-tag'
A few unterminated here documents in tests were fixed, which in
turn revealed incorrect expectations the tests make. These tests
have been updated.

* st/verify-tag:
  t7004, t7030: fix here-doc syntax errors
2017-03-27 10:59:23 -07:00
Junio C Hamano
980ee77638 Merge branch 'sb/submodule-update-initial-runs-custom-script'
A test fix.

* sb/submodule-update-initial-runs-custom-script:
  t7406: correct test case for submodule-update initial population
2017-03-27 10:59:22 -07:00
Junio C Hamano
2bef9beaf6 Merge branch 'jk/quote-env-path-list-component'
A test fix.

* jk/quote-env-path-list-component:
  t5615: fix a here-doc syntax error
2017-03-27 10:59:21 -07:00
Ævar Arnfjörð Bjarmason
244ea1b5e4 rev-parse: match @{upstream}, @{u} and @{push} case-insensitively
Change the revision parsing logic to match @{upstream}, @{u} & @{push}
case-insensitively.

Before this change supplying anything except the lower-case forms
emits an "unknown revision or path not in the working tree"
error. This change makes upper-case & mixed-case versions equivalent
to the lower-case versions.

The use-case for this is being able to hold the shift key down while
typing @{u} on certain keyboard layouts, which makes the sequence
easier to type, and reduces cases where git throws an error at the
user where it could do what he means instead.

These suffixes now join various other suffixes & special syntax
documented in gitrevisions(7) that matches case-insensitively. A table
showing the status of the various forms documented there before &
after this patch is shown below. The key for the table is:

 - CI  = Case Insensitive
 - CIP = Case Insensitive Possible (without ambiguities)
 - AG  = Accepts Garbage (.e.g. @{./.4.minutes./.})

Before this change:

    |----------------+-----+------+-----|
    | What?          | CI? | CIP? | AG? |
    |----------------+-----+------+-----|
    | @{<date>}      | Y   | Y    | Y   |
    | @{upstream}    | N   | Y    | N   |
    | @{push}        | N   | Y    | N   |
    |----------------+-----+------+-----|

After it:

    |----------------+-----+------+-----|
    | What?          | CI? | CIP? | AG? |
    |----------------+-----+------+-----|
    | @{<date>}      | Y   | Y    | Y   |
    | @{upstream}    | Y   | Y    | N   |
    | @{push}        | Y   | Y    | N   |
    |----------------+-----+------+-----|

The ^{<type>} suffix is not made case-insensitive, because other
places that take <type> like "cat-file -t <type>" do want them case
sensitively (after all we never declared that type names are case
insensitive). Allowing case-insensitive typename only with this syntax
will make the resulting Git as a whole inconsistent.

This change was independently authored to scratch a longtime itch, but
when I was about to submit it I discovered that a similar patch had
been submitted unsuccessfully before by Conrad Irwin in August 2011 as
"rev-parse: Allow @{U} as a synonym for
@{u}" (<1313287071-7851-1-git-send-email-conrad.irwin@gmail.com>).

The tests for this patch are more exhaustive than in the 2011
submission. The starting point for them was to first change the code
to only support upper-case versions of the existing words, seeing what
broke, and amending the breaking tests to check upper case & mixed
case as appropriate, and where not redundant to other similar
tests. The implementation itself is equivalent.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27 10:45:44 -07:00
Stefan Beller
af6865a7f1 submodule.c: convert is_submodule_modified to use strbuf_getwholeline
Instead of implementing line reading yet again, make use of our beautiful
library function to read one line.  By using strbuf_getwholeline instead
of strbuf_read, we avoid having to allocate memory for the entire child
process output at once.  That is, we limit maximum memory usage.
Also we can start processing the output as it comes in, no need to
wait for all of it.

Once we know all information that we care about, we can terminate
the child early. In that case we do not care about its exit code as well.
By just closing our side of the pipe the child process will get a SIGPIPE
signal, which it will not report nor do we report it in finish_command,
ac78663b0d (run-command: don't warn on SIGPIPE deaths, 2015-12-29).

Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27 09:48:19 -07:00
René Scharfe
a54e938e5b strbuf: support long paths w/o read rights in strbuf_getcwd() on FreeBSD
FreeBSD implements getcwd(3) as a syscall, but falls back to a version
based on readdir(3) if it fails for some reason.  The latter requires
permissions to read and execute path components, while the former does
not.  That means that if our buffer is too small and we're missing
rights we could get EACCES, but we may succeed with a bigger buffer.

Keep retrying if getcwd(3) indicates lack of permissions until our
buffer can fit PATH_MAX bytes, as that's the maximum supported by the
syscall on FreeBSD anyway.  This way we do what we can to be able to
benefit from the syscall, but we also won't loop forever if there is a
real permission issue.

This fixes a regression introduced with 7333ed17 (setup: convert
setup_git_directory_gently_1 et al. to strbuf, 2014-07-28) for paths
longer than 127 bytes with components that miss read or execute
permissions (e.g. 0711 on /home for privacy reasons); we used a fixed
PATH_MAX-sized buffer before.

Reported-by: Zenobiusz Kunegunda <zenobiusz.kunegunda@interia.pl>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-26 17:41:05 -07:00
Ævar Arnfjörð Bjarmason
4473060bc2 t/README: clarify the test_have_prereq documentation
Clarify the test_have_prereq documentation so that it's clear in the
reader's mind when the text says "most common use of this directly"
what the answer to "as opposed to what?" is.

Usually this function isn't used in lieu of using the prerequisite
support built into test_expect_*, mention that explicitly.

This changes documentation that I added in commit
9a897893a7 ("t/README: Document the prereq functions, and 3-arg
test_*", 2010-07-02).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-26 15:58:25 -07:00
Junio C Hamano
48b3693d3c Merge branch 'jk/sha1dc'
The "detect attempt to create collisions" variant of SHA-1
implementation by Marc Stevens (CWI) and Dan Shumow (Microsoft)
has been integrated and made the default.

* jk/sha1dc:
  Makefile: make DC_SHA1 the default
  t0013: add a basic sha1 collision detection test
  Makefile: add DC_SHA1 knob
  sha1dc: disable safe_hash feature
  sha1dc: adjust header includes for git
  sha1dc: add collision-detecting sha1 implementation
2017-03-24 13:07:38 -07:00
Junio C Hamano
fa13fd174f Merge branch 'sg/test-with-stdin'
Teach the "debug" helper used in the test framework that allows a
command to run under "gdb" to make the session interactive.

* sg/test-with-stdin:
  tests: make the 'test_pause' helper work in non-verbose mode
  tests: create an interactive gdb session with the 'debug' helper
2017-03-24 13:07:38 -07:00
Junio C Hamano
0efeb5ca12 Merge branch 'js/regexec-buf'
Fix for potential segv introduced in v2.11.0 and later (also
v2.10.2).

* js/regexec-buf:
  pickaxe: fix segfault with '-S<...> --pickaxe-regex'
2017-03-24 13:07:35 -07:00
Junio C Hamano
78cf8efec3 Merge branch 'dl/credential-cache-socket-in-xdg-cache'
The default location "~/.git-credential-cache/socket" for the
socket used to communicate with the credential-cache daemon has
been moved to "~/.cache/git/credential/socket".

* dl/credential-cache-socket-in-xdg-cache:
  credential-cache: add tests for XDG functionality
  credential-cache: use XDG_CACHE_HOME for socket
  path.c: add xdg_cache_home
2017-03-24 13:07:34 -07:00
Junio C Hamano
eb4e87cef9 Merge branch 'jc/config-case-cmdline-take-2' into maint
The code to parse "git -c VAR=VAL cmd" and set configuration
variable for the duration of cmd had two small bugs, which have
been fixed.
This supersedes jc/config-case-cmdline topic that has been discarded.

* jc/config-case-cmdline-take-2:
  config: use git_config_parse_key() in git_config_parse_parameter()
  config: move a few helper functions up
2017-03-24 12:57:54 -07:00
Junio C Hamano
ea7aa5a464 Merge branch 'jk/grep-no-index-fix' into maint
The code to parse the command line "git grep <patterns>... <rev>
[[--] <pathspec>...]" has been cleaned up, and a handful of bugs
have been fixed (e.g. we used to check "--" if it is a rev).

* jk/grep-no-index-fix:
  grep: treat revs the same for --untracked as for --no-index
  grep: do not diagnose misspelt revs with --no-index
  grep: avoid resolving revision names in --no-index case
  grep: fix "--" rev/pathspec disambiguation
  grep: re-order rev-parsing loop
  grep: do not unnecessarily query repo for "--"
  grep: move thread initialization a little lower
2017-03-24 12:57:53 -07:00
Junio C Hamano
411a179412 Merge branch 'jn/remote-helpers-with-git-dir' into maint
"git ls-remote" and "git archive --remote" are designed to work
without being in a directory under Git's control.  However, recent
updates revealed that we randomly look into a directory called
.git/ without actually doing necessary set-up when working in a
repository.  Stop doing so.

* jn/remote-helpers-with-git-dir:
  remote helpers: avoid blind fall-back to ".git" when setting GIT_DIR
  remote: avoid reading $GIT_DIR config in non-repo
2017-03-24 12:57:53 -07:00
Ævar Arnfjörð Bjarmason
75057691be tag: add tests for --with and --without
Change the test suite to test for these synonyms for --contains and
--no-contains, respectively.

Before this change there were no tests for them at all. This doesn't
exhaustively test for them as well as their --contains and
--no-contains synonyms, but at least it's something.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 12:15:26 -07:00
Ævar Arnfjörð Bjarmason
ac3f5a3468 ref-filter: add --no-contains option to tag/branch/for-each-ref
Change the tag, branch & for-each-ref commands to have a --no-contains
option in addition to their longstanding --contains options.

This allows for finding the last-good rollout tag given a known-bad
<commit>. Given a hypothetically bad commit cf5c7253e0, the git
version to revert to can be found with this hacky two-liner:

    (git tag -l 'v[0-9]*'; git tag -l --contains cf5c7253e0 'v[0-9]*') |
        sort | uniq -c | grep -E '^ *1 ' | awk '{print $2}' | tail -n 10

With this new --no-contains option the same can be achieved with:

    git tag -l --no-contains cf5c7253e0 'v[0-9]*' | sort | tail -n 10

As the filtering machinery is shared between the tag, branch &
for-each-ref commands, implement this for those commands too. A
practical use for this with "branch" is e.g. finding branches which
were branched off between v2.8.0 and v2.10.0:

    git branch --contains v2.8.0 --no-contains v2.10.0

The "describe" command also has a --contains option, but its semantics
are unrelated to what tag/branch/for-each-ref use --contains for. A
--no-contains option for "describe" wouldn't make any sense, other
than being exactly equivalent to not supplying --contains at all,
which would be confusing at best.

Add a --without option to "tag" as an alias for --no-contains, for
consistency with --with and --contains.  The --with option is
undocumented, and possibly the only user of it is
Junio (<xmqqefy71iej.fsf@gitster.mtv.corp.google.com>). But it's
trivial to support, so let's do that.

The additions to the the test suite are inverse copies of the
corresponding --contains tests. With this change --no-contains for
tag, branch & for-each-ref is just as well tested as the existing
--contains option.

In addition to those tests, add a test for "tag" which asserts that
--no-contains won't find tree/blob tags, which is slightly
unintuitive, but consistent with how --contains works & is documented.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 12:15:26 -07:00
Ævar Arnfjörð Bjarmason
1e0c3b680c tag: change --point-at to default to HEAD
Change the --points-at option to default to HEAD for consistency with
its siblings --contains, --merged etc. which default to
HEAD. Previously we'd get:

    $ git tag --points-at 2>&1 | head -n 1
    error: option `points-at' requires a value

This changes behavior added in commit ae7706b9ac (tag: add --points-at
list option, 2012-02-08).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 12:15:26 -07:00
Ævar Arnfjörð Bjarmason
6a338149f6 tag: implicitly supply --list given another list-like option
Change the "tag" command to implicitly turn on its --list mode when
provided with a list-like option such as --contains, --points-at etc.

This is for consistency with how "branch" works. When "branch" is
given a list-like option, such as --contains, it implicitly provides
--list. Before this change "tag" would error out on those sorts of
invocations. I.e. while both of these worked for "branch":

    git branch --contains v2.8.0 <pattern>
    git branch --list --contains v2.8.0 <pattern>

Only the latter form worked for "tag":

    git tag --contains v2.8.0 '*rc*'
    git tag --list --contains v2.8.0 '*rc*'

Now "tag", like "branch", will implicitly supply --list when a
list-like option is provided, and no other conflicting non-list
options (such as -d) are present on the command-line.

Spelunking through the history via:

    git log --reverse -p -G'only allowed with' -- '*builtin*tag*c'

Reveals that there was no good reason for not allowing this in the
first place. The --contains option added in 32c35cfb1e ("git-tag: Add
--contains option", 2009-01-26) made this an error. All the other
subsequent list-like options that were added copied its pattern of
making this usage an error.

The only tests that break as a result of this change are tests that
were explicitly checking that this "branch-like" usage wasn't
permitted. Change those failing tests to check that this invocation
mode is permitted, add extra tests for the list-like options we
weren't testing, and tests to ensure that e.g. we don't toggle the
list mode in the presence of other conflicting non-list options.

With this change errors messages such as "--contains option is only
allowed with -l" don't make sense anymore, since options like
--contain turn on -l. Instead we error out when list-like options such
as --contain are used in conjunction with conflicting options such as
-d or -v.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 12:15:26 -07:00
Ævar Arnfjörð Bjarmason
c485b24c42 tag: change misleading --list <pattern> documentation
Change the documentation for --list so that it's described as a
toggle, not as an option that takes a <pattern> as an argument.

Junio initially documented this in b867c7c23a ("git-tag: -l to list
tags (usability).", 2006-02-17), but later Jeff King changed "tag" to
accept multiple patterns in 588d0e834b ("tag: accept multiple patterns
for --list", 2011-06-20).

However, documenting this as "-l <pattern>" was never correct, as
these both worked before Jeff's change:

    git tag -l 'v*'
    git tag 'v*' -l

One would expect an option that was documented like that to only
accept:

    git tag --list
    git tag --list 'v*rc*'

And after Jeff's change, one that took multiple patterns:

    git tag --list 'v*rc*' --list '*2.8*'

But since it's actually a toggle all of these work as well, and
produce identical output to the last example above:

    git tag --list 'v*rc*' '*2.8*'
    git tag --list 'v*rc*' '*2.8*' --list --list --list
    git tag --list 'v*rc*' '*2.8*' --list -l --list -l --list

Now the documentation is more in tune with how the "branch" command
describes its --list option since commit cddd127b9a ("branch:
introduce --list option", 2011-08-28).

Change the test suite to assert that these invocations work for the
cases that weren't already being tested for.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 12:15:25 -07:00
Ævar Arnfjörð Bjarmason
bf748049f5 tag: add more incompatibles mode tests
Amend the test suite to test for more invalid uses like "-l -a"
etc.

This change tests the code path in builtin/tag.c between lines:

    if (argc == 0 && !cmdmode)

And:

    if ((create_tag_object || force) && (cmdmode != 0))

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 12:15:25 -07:00
Ramsay Jones
41b3eb4a6b name-hash: add test-lazy-init-name-hash to .gitignore
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 11:00:03 -07:00
Jeff Hostetler
89c3b0ad43 name-hash: add perf test for lazy_init_name_hash
Created t/perf/p0004-lazy-init-name-hash.sh test
to demonstrate correctness and performance gains
with the multithreaded version of lazy_init_name_hash().

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 11:00:03 -07:00
Jeff Hostetler
ea19489532 name-hash: add test-lazy-init-name-hash
Add t/helper/test-lazy-init-name-hash.c test code
to demonstrate performance times for lazy_init_name_hash()
using the original single-threaded and the new multi-threaded
code paths.

Includes a --dump option to dump the created hashmaps to
stdout.  You can use this to run both code paths and
confirm that they generate the same hashmaps.

Includes a --analyze option to analyze performance of both
code paths over a range of index sizes to help you find a
lower bound for the LAZY_THREAD_COST in name-hash.c.
For example, passing "-a 4000" will set "istate.cache_nr"
to 4000 and then try the multi-threaded code -- probably
giving 2 threads with 2000 entries each.  It will then
run both the single-threaded (1x4000) and the multi-threaded
(2x2000) and compare the times.  It will then repeat the
test with 8000, 12000, and etc. so that you can see the
cross over.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 11:00:03 -07:00
Alex Henrie
940a911f8e log: if --decorate is not given, default to --decorate=auto
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 10:38:43 -07:00
Santiago Torres
b42ca35e5c t7004, t7030: fix here-doc syntax errors
Jan Palus noticed that some here-doc are spelled incorrectly,
resulting the entire remainder of the test snippet being slurped
into the "expect" file as if it were data, e.g. in this sequence

	cat >expect <<EOF &&
	... expectation ...
	EOF
	git $cmd_being_tested >actual &&
	test_cmp expect actual

the last command of the test is "cat" that sends everything to
'expect' and succeeds.

Fixing these issues in t7004 and t7030 reveals that "git tag -v"
and "git verify-tag" with their --format option do not work as the
test was expecting originally.  Instead of showing both valid tags
and tags with incorrect signatures on their output, tags that do not
pass verification are omitted from the output.  Another breakage that
is uncovered is that these tests must be restricted to environment
where gpg is available.

Arguably, that is a safer behaviour, and because the format
specifiers like %(tag) do not have a way to show if the signature
verifies correctly, the command with the --format option cannot be
used to get a list of tags annotated with their signature validity
anyway.

For now, let's fix the here-doc syntax, update the expectation to
match the reality, and update the test prerequisite.

Maybe later when we extend the --format language available to "git
tag -v" and "git verify-tag" to include things like "%(gpg:status)",
we may want to change the behaviour so that piping a list of tag
names into

    xargs git verify-tag --format='%(gpg:status) %(tag)'

becomes a good way to produce such a list, but that is a separate
topic.

Noticed-by: Jan Palus <jan.palus@gmail.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Santiago Torres <santiago@nyu.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-24 10:19:18 -07:00
Junio C Hamano
99a64e4b73 tests: lint for run-away here-doc
We found a few run-away here documents that are started with an
end-of-here-doc marker that is incorrectly spelled, e.g.

	git some command >actual &&
	cat <<EOF >expect
	...
	EOF &&
	test_cmp expect actual

which ends up slurping the entire remainder of the script as if it
were the data.  Often the command that gets misused like this exits
without failure (e.g. "cat" in the above example), which makes the
command appear to work, without ever executing the remainder of the
test.

Piggy-back on the test that catches &&-chain breakage to detect this
case as well.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 20:56:49 -07:00
SZEDER Gábor
fef56eb006 completion: fill COMPREPLY directly when completing refs
__gitcomp_nl() iterates over all the possible completion words it gets
as argument

  - filtering matching words,
  - appending a trailing space to each matching word (in all but two
    cases),
  - prepending a prefix to each matching word (when completing words
    after e.g. '--option=<TAB>' or 'master..<TAB>'), and
  - adding each matching word to the COMPREPLY array.

This takes a while when a lot of refs are passed to __gitcomp_nl().

The previous changes in this series ensure that __git_refs() lists
only refs matching the current word to be completed, making a second
filtering in __gitcomp_nl() redundant.

Adding the necessary prefix and suffix could be done in __git_refs()
as well:

  - When refs come from 'git for-each-ref', then that prefix and
    suffix could be added much more efficiently using a 'git
    for-each-ref' format containing said prefix and suffix.  Care
    should be taken, though, because that prefix might contain
    'for-each-ref' format specifiers as part of the left hand side of
    a '..' range or '...' symmetric difference notation or
    fetch/push/etc. refspec, e.g. 'git log "evil-%(refname)..br<TAB>'.
    Doubling every '%' in the prefix will prevent 'git for-each-ref'
    from interpolating any of those contained specifiers.
  - When refs come from 'git ls-remote', then that prefix and suffix
    can be added in the shell loop that has to process 'git
    ls-remote's output anyway.
  - Finally, the prefix and suffix can be added to that handful of
    potentially matching symbolic and pseudo refs right away in the
    shell loop listing them.

And then all what is still left to do is to assign a bunch of
newline-separated words to a shell array, which can be done without a
shell loop iterating over each word, basically making all of
__gitcomp_nl() unnecessary for refs completion.

Add the helper function __gitcomp_direct() to fill the COMPREPLY array
with prefiltered and preprocessed words without any additional
processing, without a shell loop, with just one single compound
assignment.  Modify __git_refs() to accept prefix and suffix
parameters and add them to each and every listed ref as described
above.  Modify __git_complete_refs() to pass the prefix and suffix
parameters to __git_refs() and to feed __git_refs()'s output to
__gitcomp_direct() instead of __gitcomp_nl().

This speeds up refs completion when there are a lot of refs matching
the current word to be completed.  Listing all branches for completion
in a repo with 100k local branches, all packed, best of five:

  On Linux, near the beginning of this series, for reference:

    $ time __git_complete_refs

    real    0m2.028s
    user    0m1.692s
    sys     0m0.344s

  Before this patch:

    real    0m1.135s
    user    0m1.112s
    sys     0m0.024s

  After:

    real    0m0.367s
    user    0m0.352s
    sys     0m0.020s

  On Windows, near the beginning:

    real    0m13.078s
    user    0m1.609s
    sys     0m0.060s

  Before this patch:

    real    0m2.093s
    user    0m1.641s
    sys     0m0.060s

  After:

    real    0m0.683s
    user    0m0.203s
    sys     0m0.076s

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:22 -07:00
SZEDER Gábor
e896369beb completion: let 'for-each-ref' and 'ls-remote' filter matching refs
When completing refs, several __git_refs() code paths list all the
refs from the refs/{heads,tags,remotes}/ hierarchy and then
__gitcomp_nl() iterates over those refs in a shell loop to filter out
refs not matching the current ref to be completed.  This comes with a
considerable performance penalty when a repository contains a lot of
refs but the current ref can be uniquely completed or when only a
handful of refs match the current ref.

Reduce the number of iterations in __gitcomp_nl() from the number of
refs to the number of matching refs by specifying appropriate globbing
patterns to 'git for-each-ref' and 'git ls-remote' to list only those
refs that match the current ref to be completed.  However, do so only
when the ref to match is explicitly given as parameter, because the
current word on the command line might contain a prefix like
'--option=' or 'branch..'.  The __git_complete_refs() and
__git_complete_fetch_refspecs() helpers introduced previously in this
patch series already call __git_refs() specifying this current ref
parameter, so all their callsites, i.e. all places in the completion
script doing refs completion, can benefit from this optimization.

Furthermore, list only those symbolic and pseudo refs that match the
current ref to be completed.  Though it doesn't matter at all in
itself performance-wise, it will allow us further significant
optimizations later in this series.

This speeds up refs completion considerably when there are a lot of
non-matching refs to be filtered out.  Uniquely completing a branch in
a repository with 100k local branches, all packed, best of five:

  On Linux, before:

    $ time __git_complete_refs --cur=maste

    real    0m0.831s
    user    0m0.808s
    sys     0m0.028s

  After:

    real    0m0.119s
    user    0m0.104s
    sys     0m0.008s

  On Windows, before:

    real    0m1.480s
    user    0m1.031s
    sys     0m0.060s

  After:

    real    0m0.377s
    user    0m0.015s
    sys     0m0.030s

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:22 -07:00
SZEDER Gábor
aed3881359 completion: support excluding full refs
Commit 49416ad22 (completion: support excluding refs, 2016-08-24) made
possible to complete short refs with a '^' prefix.

Extend the support to full refs to make completing '^refs/...' work.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:22 -07:00
SZEDER Gábor
aa0644f74f completion: support completing fully qualified non-fast-forward refspecs
After 'git fetch <remote> <TAB>' our completion script offers refspecs
that will fetch to a local branch with the same name as in the remote
repository, e.g. 'master:master'.  This also completes
non-fast-forward refspecs, i.e. after a '+' prefix like
'+master:master', and fully qualified refspecs, e.g.
'refs/heads/master:refs/heads/master'.  However, it does not complete
non-fast-forward fully qualified refspecs (or fully qualified refspecs
following any other prefix, e.g. '--option=', though currently no git
command supports such an option, but third party git commands might).

These refspecs are listed by the __git_refs2() function, which is just
a thin wrapper iterating over __git_refs()'s output, turning each
listed ref into a refspec.  Now, it's certainly possible to modify
__git_refs2() and its callsite to pass an extra parameter containing
only the ref part of the current word to be completed (to follow suit
of the previous commit) to deal with prefixed fully qualified refspecs
as well.  Unfortunately, keeping the current behavior unchanged in the
"no extra parameter" case brings in a bit of subtlety, which makes the
resulting code ugly and compelled me to write a 8-line long comment in
the proof of concept.  Not good.  However, since the callsite has to
be modified for proper functioning anyway, we might as well leave
__git_refs2() as is and introduce a new helper function without
backwards compatibility concerns.

Add the new function __git_complete_fetch_refspecs() that has all the
necessary parameters to do the right thing in all cases mentioned
above, including non-fast-forward fully qualified refspecs.  This new
function can also easier benefit from optimizations coming later in
this patch series.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:22 -07:00
SZEDER Gábor
2ea328a119 completion: support completing full refs after '--option=refs/<TAB>'
Completing full refs currently only works when the full ref stands on
in its own on the command line, but doesn't work when the current word
to be completed contains a prefix before the full ref, e.g.
'--option=refs/<TAB>' or 'master..refs/bis<TAB>'.

The reason is that __git_refs() looks at the current word to be
completed ($cur) as a whole to decide whether it has to list full (if
it starts with 'refs/') or short refs (otherwise).  However, $cur also
holds said '--option=' or 'master..' prefixes, which of course throw
off this decision.  Luckily, the default action is to list short refs,
that's why completing short refs happens to work even after a
'master..<TAB>' prefix and similar cases.

Pass only the ref part of the current word to be completed to
__git_refs() as a new positional parameter, so it can make the right
decision even if the whole current word contains some kind of a
prefix.

Make this new parameter the 4. positional parameter and leave the 3.
as an ignored placeholder for now (it will be used later in this patch
series).

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:22 -07:00
SZEDER Gábor
15b4a16395 completion: wrap __git_refs() for better option parsing
__git_refs() currently accepts two optional positional parameters: a
remote and a flag for 'git checkout's tracking DWIMery.  To fix a
minor bug, and, more importantly, for faster refs completion, this
series will add three more parameters: a prefix, the current word to
be completed and a suffix, i.e. the options accepted by __gitcomp() &
friends, and will change __git_refs() to list only refs matching that
given current word and to add that given prefix and suffix to the
listed refs.

However, __git_refs() is the helper function that is most likely used
in users' custom completion scriptlets for their own git commands, and
we don't want to break those, so

  - we can't change __git_refs()'s default output format, i.e. we
    can't by default append a trailing space to every listed ref,
    meaning that the suffix parameter containing the default trailing
    space would have to be specified on every invocation, and

  - we can't change the position of existing positional parameters
    either, so there would have to be plenty of set-but-empty
    placeholder positional parameters all over the completion script.

Furthermore, with five positional parameters it would be really hard
to remember which position means what.

To keep callsites simple, add the new wrapper function
__git_complete_refs() around __git_refs(), which:

  - instead of positional parameters accepts real '--opt=val'-style
    options and with minimalistic option parsing translates them to
    __git_refs()'s and __gitcomp_nl()'s positional parameters, and

  - includes the '__gitcomp_nl "$(__git_refs ...)" ...' command
    substitution to make its behavior match its name and the behavior
    of other __git_complete_* functions, and to limit future changes
    in this series to __git_refs() and this new wrapper function.

Call this wrapper function instead of __git_refs() wherever possible
throughout the completion script, i.e. when __git_refs()'s output is
fed to __gitcomp_nl() right away without further processing, which
means all callsites except a single one in the __git_refs2() helper.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 11:18:22 -07:00
Ævar Arnfjörð Bjarmason
682b29f90d tag tests: fix a typo in a test description
Change "suceed" to "succeed" in a test description. The typo has been
here since the code was originally added in commit ef5a6fb597 ("Add
test-script for git-tag", 2007-06-28).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 10:02:56 -07:00
Ævar Arnfjörð Bjarmason
4612edc639 tag: remove a TODO item from the test suite
Change the test for "git tag -l" to not have an associated TODO
comment saying that it should return non-zero if there's no tags.

This was added in commit ef5a6fb597 ("Add test-script for git-tag",
2007-06-28) when the tests for "tag" were initially added, but at this
point changing this would be inconsistent with how "git tag" is a
synonym for "git tag -l", and would needlessly break external code
that relies on this porcelain command.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 10:02:55 -07:00
Ævar Arnfjörð Bjarmason
b643827b94 ref-filter: add test for --contains on a non-commit
Change the tag test suite to test for --contains on a tree & blob. It
only accepts commits and will spew out "<object> is a tree, not a
commit".

It's sufficient to test this just for the "tag" and "branch" commands,
because it covers all the machinery shared between "branch" and
"for-each-ref".

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-23 10:02:55 -07:00
Brandon Williams
511155db51 remote-curl: allow push options
Teach remote-curl to understand push options and to be able to convey
them across HTTP.

Signed-off-by: Brandon Williams <bmwill@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:41:21 -07:00
Junio C Hamano
a4dded0189 t7406: correct test case for submodule-update initial population
There are three issues with the test:

* The syntax of the here-doc was wrong, such that the entire test was
  sucked into the here-doc, which is why the test succeeded.

* The variable $submodulesha1 was not expanded as it was inside a quoted
  here text.  We do not want to quote EOF marker for this.

* The redirection from the git command to the output file for comparison
  was wrong as the -C operator from git doesn't apply to the redirect path.
  Also we're interested in stderr of that command.

Noticed-by: Jan Palus <jan.palus@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:39:51 -07:00
Ævar Arnfjörð Bjarmason
57f82f4f60 t/README: change "Inside <X> part" to "Inside the <X> part"
Change the mention of "Inside the <script> part, the standard
output..." to use the definite article, which makes more sense in this
context.

This changes documentation I originally added back in commit
20873f45e7 ("t/README: Document the do's and don'ts of tests",
2010-07-02).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:34:53 -07:00
Ævar Arnfjörð Bjarmason
c1d44cee95 t/README: link to metacpan.org, not search.cpan.org
Change a link to the web version of the TAP::Parser::Grammar
documentation to link to metacpan.org instead of search.cpan.org.

This is something I added back in commit 20873f45e7 ("t/README:
Document the do's and don'ts of tests", 2010-07-02), at the time
search.cpan.org was the more actively maintained CPAN web-interface,
nowadays that's metacpan.org.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 15:34:39 -07:00
Thomas Gummerer
e0e7f99ea4 stash: keep untracked files intact in stash -k
Currently when there are untracked changes in a file "one" and in a file
"two" in the repository and the user uses:

    git stash push -k one

all changes in "two" are wiped out completely.  That is clearly not the
intended result.  Make sure that only the files given in the pathspec
are changed when git stash push -k <pathspec> is used.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 14:55:56 -07:00
Thomas Gummerer
869fb8f729 stash: pass the pathspec argument to git reset
For "git stash -p --no-keep-index", the pathspec argument is currently
not passed to "git reset".  This means that changes that are staged but
that are excluded from the pathspec still get unstaged by git stash -p.

Make sure that doesn't happen by passing the pathspec argument to the
git reset in question, bringing the behaviour in line with "git stash --
<pathspec>".

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 14:55:55 -07:00
Thomas Gummerer
1790f4fea0 stash: don't show internal implementation details
git stash push uses other git commands internally.  Currently it only
passes the -q flag to those if the -q flag is passed to git stash.  when
using 'git stash push -p -q --no-keep-index', it doesn't even pass the
flag on to the internal reset at all.

It really is enough for the user to know that the stash is created,
without bothering them with the internal details of what's happening.
Always pass the -q flag to the internal git clean and git reset
commands, to avoid unnecessary and potentially confusing output.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 14:55:11 -07:00
Junio C Hamano
37e61153e2 t5615: fix a here-doc syntax error
This came as part of jk/quote-env-path-list-component and was merged
to 2.11.1 and later.

Noticed-by: Jan Palus <jan.palus@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 13:31:52 -07:00
Johannes Schindelin
cb7fb9ed42 t7504: document regression: reword no longer calls commit-msg
The `reword` command of an interactive rebase used to call the
commit-msg hooks, but that regressed when we switched to the
rebase--helper backed by the sequencer.

Noticed by Sebastian Schuberth.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 11:25:49 -07:00
Stefan Beller
b0176ce6b5 builtin/describe: introduce --broken flag
git-describe tells you the version number you're at, or errors out, e.g.
when you run it outside of a repository, which may happen when downloading
a tar ball instead of using git to obtain the source code.

To keep this property of only erroring out, when not in a repository,
severe (submodule) errors must be downgraded to reporting them gently
instead of having git-describe error out completely.

To achieve that a flag '--broken' is introduced, which is in the same
vein as '--dirty' but uses an actual child process to check for dirtiness.
When that child dies unexpectedly, we'll append '-broken' instead of
'-dirty'.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 10:13:41 -07:00
Stefan Beller
70471ed9bb t3600: rename test to describe its functionality
This was an oversight in 55856a35b2 (rm: absorb a submodules git dir
before deletion, 2016-12-27), as the body of the test changed without
adapting the test subject.

Signed-off-by: Stefan Beller <sbeller@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-22 10:13:17 -07:00
Junio C Hamano
4b7989b103 Merge branch 'nd/conditional-config-include'
The configuration file learned a new "includeIf.<condition>.path"
that includes the contents of the given path only when the
condition holds.  This allows you to say "include this work-related
bit only in the repositories under my ~/work/ directory".

* nd/conditional-config-include:
  config: add conditional include
  config.txt: reflow the second include.path paragraph
  config.txt: clarify multiple key values in include.path
2017-03-21 15:07:18 -07:00
Junio C Hamano
71da2fb077 Merge branch 'jh/send-email-one-cc' into maint
"Cc:" on the trailer part does not have to conform to RFC strictly,
unlike in the e-mail header.  "git send-email" has been updated to
ignore anything after '>' when picking addresses, to allow non-address
cruft like " # stable 4.4" after the address.

* jh/send-email-one-cc:
  send-email: only allow one address per body tag
2017-03-21 15:03:30 -07:00
Junio C Hamano
7e02ec2c5d Merge branch 'jk/t6300-cleanup' into maint
A test that creates a confusing branch whose name is HEAD has been
corrected not to do so.

* jk/t6300-cleanup:
  t6300: avoid creating refs/heads/HEAD
2017-03-21 15:03:30 -07:00
Junio C Hamano
0d9f9424ad Merge branch 'rl/remote-allow-missing-branch-name-merge' into maint
"git remote rm X", when a branch has remote X configured as the
value of its branch.*.remote, tried to remove branch.*.remote and
branch.*.merge and failed if either is unset.

* rl/remote-allow-missing-branch-name-merge:
  remote: ignore failure to remove missing branch.<name>.merge
2017-03-21 15:03:28 -07:00
Junio C Hamano
d30ec1bece Merge branch 'dt/gc-ignore-old-gc-logs' into maint
A "gc.log" file left by a backgrounded "gc --auto" disables further
automatic gc; it has been taught to run at least once a day (by
default) by ignoring a stale "gc.log" file that is too old.

* dt/gc-ignore-old-gc-logs:
  gc: ignore old gc.log files
2017-03-21 15:03:28 -07:00
Junio C Hamano
cc8e385a7c Merge branch 'jc/diff-populate-filespec-size-only-fix' into maint
"git diff --quiet" relies on the size field in diff_filespec to be
correctly populated, but diff_populate_filespec() helper function
made an incorrect short-cut when asked only to populate the size
field for paths that need to go through convert_to_git() (e.g. CRLF
conversion).

* jc/diff-populate-filespec-size-only-fix:
  diff: do not short-cut CHECK_SIZE_ONLY check in diff_populate_filespec()
2017-03-21 15:03:26 -07:00
Ævar Arnfjörð Bjarmason
17d6c744dc ref-filter: make combining --merged & --no-merged an error
Change the behavior of specifying --merged & --no-merged to be an
error, instead of silently picking the option that was provided last.

Subsequent changes of mine add a --no-contains option in addition to
the existing --contains. Providing both of those isn't an error, and
has actual meaning.

Making its cousins have different behavior in this regard would be
confusing to the user, especially since we'd be silently disregarding
some of their command-line input.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 11:19:52 -07:00
Jeff King
a1be47e4ca hash-object: fix buffer reuse with --path in a subdirectory
The hash-object command uses prefix_filename() without
duplicating its return value. Since that function returns a
static buffer, the value is overwritten by subsequent calls.

This can cause incorrect results when we use --path along
with hashing a file by its relative path, both of which need
to call prefix_filename(). We overwrite the filename
computed for --path, effectively ignoring it.

We can fix this by calling xstrdup on the return value. Note
that we don't bother freeing the "vpath" instance, as it
remains valid until the program exit.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 11:12:52 -07:00
Kyle Meyer
2405ed07ca t1400: use test_when_finished for cleanup
Move cleanup lines that occur after test blocks into
test_when_finished calls within the test bodies.  Don't move cleanup
lines that seem to be related to mutiple tests rather than a single
test.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 10:50:17 -07:00
Kyle Meyer
e063e5d7da t1400: remove a set of unused output files
This test case redirects stdout and stderr to output files, but,
unlike the other cases of redirection in the t1400 tests, these files
are not examined downstream.  Remove the redirection so that the
output is visible when running the tests verbosely.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 10:50:16 -07:00
Kyle Meyer
cd81af4bd7 t1400: use test_path_is_* helpers
Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 10:50:16 -07:00
Kyle Meyer
3e5584ca61 t1400: set core.logAllRefUpdates in "logged by touch" tests
A group of update-ref tests verifies that logs are created when either
the log file for the ref already exists or core.logAllRefUpdates is
"true".  However, when the default for core.logAllRefUpdates was
changed in 0bee59186 (Enable reflogs by default in any repository with
a working directory., 2006-12-14), the setup for the tests was not
updated.  As a result, the "logged by touch" tests would pass even if
the log file did not exist (i.e., if "--create-reflog" was removed
from the first "git update-ref" call).

Update the "logged by touch" tests to disable core.logAllRefUpdates
explicitly so that the behavior does not depend on the default value.
While we're here, update the "logged by config" tests to use
test_config() rather than setting core.logAllRefUpdates to "true"
outside of the tests.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 10:50:16 -07:00
Kyle Meyer
f950e89fc4 t1400: rename test descriptions to be unique
A few tests share their description with another test.  Extend the
descriptions to indicate how the tests differ.

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-21 10:50:16 -07:00
Junio C Hamano
0e758ac5a8 Merge branch 'js/difftool-builtin'
"git difftool --dir-diff" used to die a controlled death giving a
"fatal" message when encountering a locally modified symbolic link,
but it started segfaulting since v2.12.  This has been fixed.

* js/difftool-builtin:
  difftool: handle modified symlinks in dir-diff mode
  t7800: cleanup cruft left behind by tests
  t7800: remove whitespace before redirect
2017-03-20 13:56:00 -07:00
SZEDER Gábor
f53c5de29c pickaxe: fix segfault with '-S<...> --pickaxe-regex'
'git {log,diff,...} -S<...> --pickaxe-regex' can segfault as a result
of out-of-bounds memory reads.

diffcore-pickaxe.c:contains() looks for all matches of the given regex
in a buffer in a loop, advancing the buffer pointer to the end of the
last match in each iteration.  When we switched to REG_STARTEND in
b7d36ffca (regex: use regexec_buf(), 2016-09-21), we started passing
the size of that buffer to the regexp engine, too.  Unfortunately,
this buffer size is never updated on subsequent iterations, and as the
buffer pointer advances on each iteration, this "bufptr+bufsize"
points past the end of the buffer.  This results in segmentation
fault, if that memory can't be accessed.  In case of 'git log' it can
also result in erroneously listed commits, if the memory past the end
of buffer is accessible and happens to contain data matching the
regex.

Reduce the buffer size on each iteration as the buffer pointer is
advanced, thus maintaining the correct end of buffer location.
Furthermore, make sure that the buffer pointer is not dereferenced in
the control flow statements when we already reached the end of the
buffer.

The new test is flaky, I've never seen it fail on my Linux box even
without the fix, but this is expected according to db5dfa3 (regex:
-G<pattern> feeds a non NUL-terminated string to regexec() and fails,
2016-09-21).  However, it did fail on Travis CI with the first (and
incomplete) version of the fix, and based on that commit message I
would expect the new test without the fix to fail most of the time on
Windows.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18 12:22:33 -07:00
SZEDER Gábor
59210dd56c tests: make the 'test_pause' helper work in non-verbose mode
When the 'test_pause' helper function invokes the shell mid-test, it
explicitly redirects the shell's stdout and stderr to file descriptors
3 and 4, which are the stdout and stderr of the tests (i.e. where they
would be connected anyway without those redirections).  These file
descriptors are only attached to the terminal in verbose mode, hence
the restriction of 'test_pause' to work only with '-v'.

Redirect the shell's stdout and stderr to the test environment's
original stdout and stderr, allowing it to work properly even in
non-verbose mode, and the restriction can be lifted.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18 10:18:22 -07:00
SZEDER Gábor
4ecae3c8c1 tests: create an interactive gdb session with the 'debug' helper
The 'debug' test helper is supposed to facilitate debugging by running
a command of the test suite under gdb.  Unfortunately, its usefulness
is severely limited, because that gdb session is not interactive,
since the test's, and thus gdb's standard input is redirected from
/dev/null (for a good reason, see 781f76b15 (test-lib: redirect stdin
of tests, 2011-12-15)).

Redirect gdb's standard file descriptors from/to the test
environment's stdin, stdout and stderr in the 'debug' helper, thus
creating an interactive gdb session (even in non-verbose mode), which
is much, much more useful.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18 10:18:20 -07:00
Brandon Williams
1b614c07d2 submodule add: respect submodule.active and submodule.<name>.active
In addition to adding submodule.<name>.url to the config, set
submodule.<name>.active to true unless submodule.active is configured
and the submodule's path matches the configured pathspec.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18 09:51:23 -07:00
Brandon Williams
1f8d711548 submodule--helper init: set submodule.<name>.active
When initializing a submodule set the submodule.<name>.active config to
true if the module hasn't already been configured to be active by some
other means (e.g. a pathspec set in submodule.active).

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18 09:51:23 -07:00
Brandon Williams
bb62e0a99f clone: teach --recurse-submodules to optionally take a pathspec
Teach clone --recurse-submodules to optionally take a pathspec argument
which describes which submodules should be recursively initialized and
cloned.  If no pathspec is provided, --recurse-submodules will
recursively initialize and clone all submodules by using a default
pathspec of ".".  In order to construct more complex pathspecs,
--recurse-submodules can be given multiple times.

This also configures the 'submodule.active' configuration option to be
the given pathspec, such that any future invocation of `git submodule
update` will keep up with the pathspec.

Additionally the switch '--recurse' is removed from the Documentation as
well as marked hidden in the options array, to streamline the options
for submodules.  A simple '--recurse' doesn't convey what is being
recursed, e.g. it could mean directories or trees (c.f. ls-tree) In a
lot of other commands we already have '--recurse-submodules' to mean
recursing into submodules, so advertise this spelling here as the
genuine option.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18 09:51:23 -07:00