Commit Graph

12312 Commits

Author SHA1 Message Date
Junio C Hamano
3c548de378 Merge branch 'sb/submodule-blanket-recursive'
Many commands learned to pay attention to submodule.recurse
configuration.

* sb/submodule-blanket-recursive:
  builtin/fetch.c: respect 'submodule.recurse' option
  builtin/push.c: respect 'submodule.recurse' option
  builtin/grep.c: respect 'submodule.recurse' option
  Introduce 'submodule.recurse' option for worktree manipulators
  submodule loading: separate code path for .gitmodules and config overlay
  reset/checkout/read-tree: unify config callback for submodule recursion
  submodule test invocation: only pass additional arguments
  submodule recursing: do not write a config variable twice
2017-06-13 13:47:07 -07:00
Junio C Hamano
cbbe1c8713 Merge branch 'ab/t3070-test-dedup' into maint
Test cleanup.

* ab/t3070-test-dedup:
  wildmatch test: remove redundant duplicate test
2017-06-13 13:27:04 -07:00
Junio C Hamano
a4478c9c03 Merge branch 'jh/memihash-opt' into maint
perf-test update.

* jh/memihash-opt:
  p0004: don't error out if test repo is too small
  p0004: don't abort if multi-threaded is too slow
  p0004: use test_perf
  p0004: avoid using pipes
  p0004: simplify calls of test-lazy-init-name-hash
2017-06-13 13:27:04 -07:00
Junio C Hamano
9e60e21e53 Merge branch 'tb/pull-ff-rebase-autostash' into maint
"git pull --rebase --autostash" didn't auto-stash when the local history
fast-forwards to the upstream.

* tb/pull-ff-rebase-autostash:
  pull: ff --rebase --autostash works in dirty repo
2017-06-13 13:27:03 -07:00
Junio C Hamano
f4683b4e9c Merge branch 'sl/clean-d-ignored-fix' into maint
"git clean -d" used to clean directories that has ignored files,
even though the command should not lose ignored ones without "-x".
"git status --ignored"  did not list ignored and untracked files
without "-uall".  These have been corrected.

* sl/clean-d-ignored-fix:
  clean: teach clean -d to preserve ignored paths
  dir: expose cmp_name() and check_contains()
  dir: hide untracked contents of untracked dirs
  dir: recurse into untracked dirs for ignored files
  t7061: status --ignored should search untracked dirs
  t7300: clean -d should skip dirs with ignored files
2017-06-13 13:27:02 -07:00
Junio C Hamano
8a5732c1f2 Merge branch 'jc/skip-test-in-the-middle' into maint
A recent update to t5545-push-options.sh started skipping all the
tests in the script when a web server testing is disabled or
unavailable, not just the ones that require a web server.  Non HTTP
tests have been salvaged to always run in this script.

* jc/skip-test-in-the-middle:
  t5545: enhance test coverage when no http server is installed
  test: allow skipping the remainder
2017-06-13 13:27:00 -07:00
Junio C Hamano
e350625b68 Merge branch 'bw/forking-and-threading' into maint
The "run-command" API implementation has been made more robust
against dead-locking in a threaded environment.

* bw/forking-and-threading:
  usage.c: drop set_error_handle()
  run-command: restrict PATH search to executable files
  run-command: expose is_executable function
  run-command: block signals between fork and execve
  run-command: add note about forking and threading
  run-command: handle dup2 and close errors in child
  run-command: eliminate calls to error handling functions in child
  run-command: don't die in child when duping /dev/null
  run-command: prepare child environment before forking
  string-list: add string_list_remove function
  run-command: use the async-signal-safe execv instead of execvp
  run-command: prepare command before forking
  t0061: run_command executes scripts without a #! line
  t5550: use write_script to generate post-update hook
2017-06-13 13:27:00 -07:00
Junio C Hamano
7a190a215d Merge branch 'jk/bug-to-abort' into maint
Introduce the BUG() macro to improve die("BUG: ...").

* jk/bug-to-abort:
  usage: add NORETURN to BUG() function definitions
  config: complain about --local outside of a git repo
  setup_git_env: convert die("BUG") to BUG()
  usage.c: add BUG() function
2017-06-13 13:26:59 -07:00
Junio C Hamano
146b0ab1a5 Merge branch 'sb/checkout-recurse-submodules' into maint
"git checkout --recurse-submodules" did not quite work with a
submodule that itself has submodules.

* sb/checkout-recurse-submodules:
  submodule: properly recurse for read-tree and checkout
  submodule: avoid auto-discovery in new working tree manipulator code
  submodule_move_head: reuse child_process structure for futher commands
2017-06-13 13:26:59 -07:00
Patrick Steinhardt
22fc703ec9 git-stash: fix pushing stash with pathspec from subdir
The `git stash push` command recently gained the ability to get a
pathspec as its argument to only stash matching files. Calling this
command from a subdirectory does not work, though, as one of the first
things we do is changing to the top level directory without keeping
track of the prefix from which the command is being run.

Fix the shortcoming by storing the prefix previous to the call to
`cd_to_toplevel` and then subsequently using `git rev-parse --prefix` to
correctly resolve the pathspec. Add a test to catch future breakage of
this usecase.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13 08:27:13 -07:00
Sahil Dua
bb8efa1772 t3200: add test for single parameter passed to -m option
Add a test for the case when only one parameter is passed to '-m'
(move/rename) option.

For example - if 'git branch -m bbb' is run while checked out on aaa
branch, it should rename the currently checked out branch to bbb.
There was no test for this particular case with only one parameter
for -m option. However, there's one similar test case for -M option.

Add test for making sure HEAD points to the bbb (new branch name). Also
add a test for making sure the reflog that is moved to 'bbb' retains
entries created for the currently checked out branch. Note that since
the topmost entry on reflog for bbb will be about branch creation, we
compare bbb@{1} (instead of bbb@{0}) with aaa@{0} to make sure the
reflog for bbb retains entries from aaa.

Signed-off-by: Sahil Dua <sahildua2305@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13 08:04:16 -07:00
Kyle J. McKay
ae52d57f0b t5100: add some more mailinfo tests
Add some more simple mailinfo tests including a few that
produce:

  fatal: `pos + len' is too far after the end of the buffer

Mark those as 'test_expect_failure'.

Signed-off-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-12 09:37:08 -07:00
Stefan Beller
68241cb9dd t4005: modernize style and drop hard coded sha1
Use modern style in the test t4005. Remove hard coded sha1 values.
Combine test prep work and the actual test. Rename the first
test to contain the word "setup".

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-10 01:08:43 +09:00
Jeff King
7c2115aa07 t5313: make extended-table test more deterministic
Commit a1283866b (t5313: test bounds-checks of
corrupted/malicious pack/idx files, 2016-02-25) added a test
that requires our corrupted pack index to have two objects.
The entry for the first one remains untouched, but we
corrupt the entry for second one. Since the index stores the
entries in sha1-sorted order, this means that the test must
make sure that the sha1 of the object we expect to be
corrupted ("$object") sorts after the other placeholder
object.

That commit used the HEAD commit as the placeholder, but the
script never calls test_tick. That means that the commit
object (and thus its sha1) depends on the timestamp when the
test script is run. This usually works in practice, because
the sha1 of $object starts with "fff". The commit object
will sort after that only 1 in 4096 times, but when it does
the test will fail.

One obvious solution is to add the test_tick call to get a
deterministic commit sha1. But since we're relying on the
sort order for the test to function, let's make that very
explicit by just generating a second blob with a known sha1.

Reported-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-07 07:45:59 +09:00
Jeff King
d691551192 t0012: test "-h" with builtins
Since commit 99caeed05 (Let 'git <command> -h' show usage
without a git dir, 2009-11-09), the git wrapper handles "-h"
specially, skipping any repository setup but still calling
the builtin's cmd_foo() function. This means that every
cmd_foo() must be ready to handle this case, but we don't
have any systematic tests. This led to "git am -h" being
broken for some time without anybody noticing.

This patch just tests that "git foo -h" works for every
builtin, where we see a 129 exit code (the normal code for
our usage() helper), and that the word "usage" appears in
the output.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-05 11:43:33 +09:00
Ævar Arnfjörð Bjarmason
154ffeecc6 perf: work around the tested repo having an index.lock
When the tested repo has an index.lock file it should be removed. This
file may be present if e.g. git-status previously crashed in that
repo, and it will make a lot of git commands fail. Let's try harder
and remove the lock.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-05 11:04:51 +09:00
Junio C Hamano
35898eafab Merge branch 'tb/pull-ff-rebase-autostash'
"git pull --rebase --autostash" didn't auto-stash when the local history
fast-forwards to the upstream.

* tb/pull-ff-rebase-autostash:
  pull: ff --rebase --autostash works in dirty repo
2017-06-05 09:18:13 +09:00
Junio C Hamano
711a11c301 Merge branch 'mh/packed-ref-store-prep'
The implementation of "ref" API around the "packed refs" have been
cleaned up, in preparation for further changes.

* mh/packed-ref-store-prep: (25 commits)
  cache_ref_iterator_begin(): avoid priming unneeded directories
  ref-filter: limit traversal to prefix
  create_ref_entry(): remove `check_name` option
  refs_ref_iterator_begin(): handle `GIT_REF_PARANOIA`
  read_packed_refs(): report unexpected fopen() failures
  read_packed_refs(): do more of the work of reading packed refs
  get_packed_ref_cache(): assume "packed-refs" won't change while locked
  should_pack_ref(): new function, extracted from `files_pack_refs()`
  ref_update_reject_duplicates(): add a sanity check
  ref_update_reject_duplicates(): use `size_t` rather than `int`
  ref_update_reject_duplicates(): expose function to whole refs module
  ref_transaction_prepare(): new optional step for reference updates
  ref_transaction_commit(): check for valid `transaction->state`
  files_transaction_cleanup(): new helper function
  files_ref_store: put the packed files lock directly in this struct
  files-backend: move `lock` member to `files_ref_store`
  lockfile: add a new method, is_lock_file_locked()
  ref_store: take a `msg` parameter when deleting references
  refs: use `size_t` indexes when iterating over ref transaction updates
  refs_ref_iterator_begin(): don't check prefixes redundantly
  ...
2017-06-05 09:18:11 +09:00
Junio C Hamano
53083f8547 Merge branch 'mb/diff-default-to-indent-heuristics'
Make the "indent" heuristics the default in "diff" and diff.indentHeuristics
configuration variable an escape hatch for those who do no want it.

* mb/diff-default-to-indent-heuristics:
  add--interactive: drop diff.indentHeuristic handling
  diff: enable indent heuristic by default
  diff: have the diff-* builtins configure diff before initializing revisions
  diff: make the indent heuristic part of diff's basic configuration
2017-06-05 09:18:10 +09:00
Junio C Hamano
e06b421cf0 Merge branch 'sd/t3200-typofix' into maint
Test fix.

* sd/t3200-typofix:
  branch test: fix invalid config key access
2017-06-05 09:03:22 +09:00
Junio C Hamano
2ed824bce5 Merge branch 'sb/t5531-update-desc' into maint
The description strings for a few tests have been updated.

* sb/t5531-update-desc:
  t5531: fix test description
2017-06-05 09:03:21 +09:00
Junio C Hamano
86799c1c61 Merge branch 'tb/dedup-crlf-tests' into maint
* tb/dedup-crlf-tests:
  t0027: tests are not expensive; remove t0025
2017-06-05 09:03:16 +09:00
Junio C Hamano
a07148db31 Merge branch 'jk/alternate-ref-optim' into maint
A test allowed both "git push" and "git receive-pack" on the other
end write their traces into the same file.  This is OK on platforms
that allows atomically appending to a file opened with O_APPEND,
but on other platforms led to a mangled output, causing
intermittent test failures.  This has been fixed by disabling
traces from "receive-pack" in the test.

* jk/alternate-ref-optim:
  t5400: avoid concurrent writes into a trace file
2017-06-05 09:03:14 +09:00
Junio C Hamano
00c0e40f02 Merge branch 'bm/interpret-trailers-cut-line-is-eom' into maint
"git interpret-trailers", when used as GIT_EDITOR for "git commit
-v", looked for and appended to a trailer block at the very end,
i.e. at the end of the "diff" output.  The command has been
corrected to pay attention to the cut-mark line "commit -v" adds to
the buffer---the real trailer block should appear just before it.

* bm/interpret-trailers-cut-line-is-eom:
  interpret-trailers: honor the cut line
2017-06-05 09:03:13 +09:00
Junio C Hamano
c8c3321633 Merge branch 'jn/clone-add-empty-config-from-command-line' into maint
"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
2017-06-05 09:03:11 +09:00
Junio C Hamano
e2ae5ec1f3 Merge branch 'jt/use-trailer-api-in-commands' into maint
"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
2017-06-04 10:21:06 +09:00
Junio C Hamano
058d655f8f Merge branch 'jt/push-options-doc' into maint
The receive-pack program now makes sure that the push certificate
records the same set of push options used for pushing.

* jt/push-options-doc:
  receive-pack: verify push options in cert
  docs: correct receive.advertisePushOptions default
2017-06-04 10:21:05 +09:00
Junio C Hamano
7ba4fa5c08 Merge branch 'js/eol-on-ourselves' into maint
Make sure our tests would pass when the sources are checked out
with "platform native" line ending convention by default on
Windows.  Some "text" files out tests use and the test scripts
themselves that are meant to be run with /bin/sh, ought to be
checked out with eol=LF even on Windows.

* js/eol-on-ourselves:
  t4051: mark supporting files as requiring LF-only line endings
  Fix the remaining tests that failed with core.autocrlf=true
  t3901: move supporting files into t/t3901/
  completion: mark bash script as LF-only
  git-new-workdir: mark script as LF-only
  Fix build with core.autocrlf=true
2017-06-04 10:21:04 +09:00
Junio C Hamano
8d958b97c6 Merge branch 'jk/ignore-broken-tags-when-ignoring-missing-links' into maint
Tag objects, which are not reachable from any ref, that point at
missing objects were mishandled by "git gc" and friends (they
should silently be ignored instead)

* jk/ignore-broken-tags-when-ignoring-missing-links:
  revision.c: ignore broken tags with ignore_missing_links
2017-06-04 10:21:03 +09:00
Junio C Hamano
f305016f42 Merge branch 'jk/disable-pack-reuse-when-broken' into maint
"pack-objects" can stream a slice of an existing packfile out when
the pack bitmap can tell that the reachable objects are all needed
in the output, without inspecting individual objects.  This
strategy however would not work well when "--local" and other
options are in use, and need to be disabled.

* jk/disable-pack-reuse-when-broken:
  t5310: fix "; do" style
  pack-objects: disable pack reuse for object-selection options
2017-06-04 10:21:02 +09:00
Junio C Hamano
c95f0d2f9d Merge branch 'bw/submodule-with-bs-path' into maint
A hotfix to a topic that is already in v2.13.

* bw/submodule-with-bs-path:
  t7400: add !CYGWIN prerequisite to 'add with \\ in path'
2017-06-04 10:20:58 +09:00
Junio C Hamano
fb11de9ef5 Merge branch 'ah/log-decorate-default-to-auto' into maint
Setting "log.decorate=false" in the configuration file did not take
effect in v2.13, which has been corrected.

* ah/log-decorate-default-to-auto:
  builtin/log: honor log.decorate
2017-06-04 10:20:57 +09:00
Junio C Hamano
6c940eb94d Merge branch 'ab/fix-poison-tests' into maint
Update tests to pass under GETTEXT_POISON (a mechanism to ensure
that output strings that should not be translated are not
translated by mistake), and tell TravisCI to run them.

* ab/fix-poison-tests:
  travis-ci: add job to run tests with GETTEXT_POISON
  travis-ci: setup "prove cache" in "script" step
  tests: fix tests broken under GETTEXT_POISON=YesPlease
2017-06-04 10:20:56 +09:00
Junio C Hamano
16b4a48fec Merge branch 'ab/doc-replace-gmane-links' into maint
The Web interface to gmane news archive is long gone, even though
the articles are still accessible via NTTP.  Replace the links with
ones to public-inbox.org.  Because their message identification is
based on the actual message-id, it is likely that it will be easier
to migrate away from it if/when necessary.

* ab/doc-replace-gmane-links:
  doc: replace more gmane links
  doc: replace a couple of broken gmane links
2017-06-04 10:20:56 +09:00
Junio C Hamano
9af970339e Merge branch 'ab/t3070-test-dedup'
Test cleanup.

* ab/t3070-test-dedup:
  wildmatch test: remove redundant duplicate test
2017-06-04 09:55:43 +09:00
Junio C Hamano
634ccf4ca3 Merge branch 'sd/t3200-typofix'
Test fix.

* sd/t3200-typofix:
  branch test: fix invalid config key access
2017-06-04 09:55:42 +09:00
Junio C Hamano
36dcb57337 Merge branch 'ab/grep-preparatory-cleanup'
The internal implementation of "git grep" has seen some clean-up.

* ab/grep-preparatory-cleanup: (31 commits)
  grep: assert that threading is enabled when calling grep_{lock,unlock}
  grep: given --threads with NO_PTHREADS=YesPlease, warn
  pack-objects: fix buggy warning about threads
  pack-objects & index-pack: add test for --threads warning
  test-lib: add a PTHREADS prerequisite
  grep: move is_fixed() earlier to avoid forward declaration
  grep: change internal *pcre* variable & function names to be *pcre1*
  grep: change the internal PCRE macro names to be PCRE1
  grep: factor test for \0 in grep patterns into a function
  grep: remove redundant regflags assignments
  grep: catch a missing enum in switch statement
  perf: add a comparison test of log --grep regex engines with -F
  perf: add a comparison test of log --grep regex engines
  perf: add a comparison test of grep regex engines with -F
  perf: add a comparison test of grep regex engines
  perf: emit progress output when unpacking & building
  perf: add a GIT_PERF_MAKE_COMMAND for when *_MAKE_OPTS won't do
  grep: add tests to fix blind spots with \0 patterns
  grep: prepare for testing binary regexes containing rx metacharacters
  grep: add a test helper function for less verbose -f \0 tests
  ...
2017-06-02 15:06:06 +09:00
Junio C Hamano
7ef0d04738 Merge branch 'jk/diff-blob'
The result from "git diff" that compares two blobs, e.g. "git diff
$commit1:$path $commit2:$path", used to be shown with the full
object name as given on the command line, but it is more natural to
use the $path in the output and use it to look up .gitattributes.

* jk/diff-blob:
  diff: use blob path for blob/file diffs
  diff: use pending "path" if it is available
  diff: use the word "path" instead of "name" for blobs
  diff: pass whole pending entry in blobinfo
  handle_revision_arg: record paths for pending objects
  handle_revision_arg: record modes for "a..b" endpoints
  t4063: add tests of direct blob diffs
  get_sha1_with_context: dynamically allocate oc->path
  get_sha1_with_context: always initialize oc->symlink_path
  sha1_name: consistently refer to object_context as "oc"
  handle_revision_arg: add handle_dotdot() helper
  handle_revision_arg: hoist ".." check out of range parsing
  handle_revision_arg: stop using "dotdot" as a generic pointer
  handle_revision_arg: simplify commit reference lookups
  handle_revision_arg: reset "dotdot" consistently
2017-06-02 15:06:05 +09:00
Junio C Hamano
f4fd99bf6e Merge branch 'sl/clean-d-ignored-fix'
"git clean -d" used to clean directories that has ignored files,
even though the command should not lose ignored ones without "-x".
"git status --ignored"  did not list ignored and untracked files
without "-uall".  These have been corrected.

* sl/clean-d-ignored-fix:
  clean: teach clean -d to preserve ignored paths
  dir: expose cmp_name() and check_contains()
  dir: hide untracked contents of untracked dirs
  dir: recurse into untracked dirs for ignored files
  t7061: status --ignored should search untracked dirs
  t7300: clean -d should skip dirs with ignored files
2017-06-02 15:06:05 +09:00
Junio C Hamano
d027b467fc Merge branch 'sb/t5531-update-desc'
The description strings for a few tests have been updated.

* sb/t5531-update-desc:
  t5531: fix test description
2017-06-02 15:06:03 +09:00
Junio C Hamano
8e6a904dd8 Merge branch 'jt/send-email-validate-hook'
A hotfix for a topic already in 'master'.

* jt/send-email-validate-hook:
  send-email: check for repo before invoking hook
2017-06-02 15:06:00 +09:00
Jonathan Tan
177409e589 send-email: check for repo before invoking hook
Unless --no-validate is passed, send-email will invoke
$repo->repo_path() in its search for a validate hook regardless of
whether a Git repo is actually present.  Teach send-email to first check
for repo existence.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02 10:58:25 +09:00
Johannes Sixt
e5b313442a mingw_fopen: report ENOENT for invalid file names
On Windows, certain characters are prohibited in file names, most
prominently the colon. When fopen() is called with such an invalid file
name, the underlying Windows API actually reports a particular error,
but since there is no suitable errno value, this error is translated
to EINVAL. Detect the case and report ENOENT instead.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02 10:40:04 +09:00
Johannes Schindelin
13b57da833 mingw: verify that paths are not mistaken for remote nicknames
This added test case simply verifies that users will not be bothered
with bogus complaints à la

	warning: unable to access '.git/remotes/D:\repo': Invalid argument

when fetching from a Windows path (in this case, D:\repo).

[j6t: mark the new test as test_expect_failure]

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02 10:39:50 +09:00
Ævar Arnfjörð Bjarmason
94da9193a6 grep: add support for PCRE v2
Add support for v2 of the PCRE API. This is a new major version of
PCRE that came out in early 2015[1].

The regular expression syntax is the same, but while the API is
similar, pretty much every function is either renamed or takes
different arguments. Thus using it via entirely new functions makes
sense, as opposed to trying to e.g. have one compile_pcre_pattern()
that would call either PCRE v1 or v2 functions.

Git can now be compiled with either USE_LIBPCRE1=YesPlease or
USE_LIBPCRE2=YesPlease, with USE_LIBPCRE=YesPlease currently being a
synonym for the former. Providing both is a compile-time error.

With earlier patches to enable JIT for PCRE v1 the performance of the
release versions of both libraries is almost exactly the same, with
PCRE v2 being around 1% slower.

However after I reported this to the pcre-dev mailing list[2] I got a
lot of help with the API use from Zoltán Herczeg, he subsequently
optimized some of the JIT functionality in v2 of the library.

Running the p7820-grep-engines.sh performance test against the latest
Subversion trunk of both, with both them and git compiled as -O3, and
the test run against linux.git, gives the following results. Just the
/perl/ tests shown:

    $ GIT_PERF_REPEAT_COUNT=30 GIT_PERF_LARGE_REPO=~/g/linux GIT_PERF_MAKE_COMMAND='grep -q LIBPCRE2 Makefile && make -j8 USE_LIBPCRE2=YesPlease CC=~/perl5/installed/bin/gcc NO_R_TO_GCC_LINKER=YesPlease CFLAGS=-O3 LIBPCREDIR=/home/avar/g/pcre2/inst LDFLAGS=-Wl,-rpath,/home/avar/g/pcre2/inst/lib || make -j8 USE_LIBPCRE=YesPlease CC=~/perl5/installed/bin/gcc NO_R_TO_GCC_LINKER=YesPlease CFLAGS=-O3 LIBPCREDIR=/home/avar/g/pcre/inst LDFLAGS=-Wl,-rpath,/home/avar/g/pcre/inst/lib' ./run HEAD~5 HEAD~ HEAD p7820-grep-engines.sh
    [...]
    Test                                            HEAD~5            HEAD~                    HEAD
    -----------------------------------------------------------------------------------------------------------------
    7820.3: perl grep 'how.to'                      0.31(1.10+0.48)   0.21(0.35+0.56) -32.3%   0.21(0.34+0.55) -32.3%
    7820.7: perl grep '^how to'                     0.56(2.70+0.40)   0.24(0.64+0.52) -57.1%   0.20(0.28+0.60) -64.3%
    7820.11: perl grep '[how] to'                   0.56(2.66+0.38)   0.29(0.95+0.45) -48.2%   0.23(0.45+0.54) -58.9%
    7820.15: perl grep '(e.t[^ ]*|v.ry) rare'       1.02(5.77+0.42)   0.31(1.02+0.54) -69.6%   0.23(0.50+0.54) -77.5%
    7820.19: perl grep 'm(ú|u)lt.b(æ|y)te'          0.38(1.57+0.42)   0.27(0.85+0.46) -28.9%   0.21(0.33+0.57) -44.7%

See commit ("perf: add a comparison test of grep regex engines",
2017-04-19) for details on the machine the above test run was executed
on.

Here HEAD~2 is git with PCRE v1 without JIT, HEAD~ is PCRE v1 with
JIT, and HEAD is PCRE v2 (also with JIT). See previous commits of mine
mentioning p7820-grep-engines.sh for more details on the test setup.

For ease of readability, a different run just of HEAD~ (PCRE v1 with
JIT v.s. PCRE v2), again with just the /perl/ tests shown:

    [...]
    Test                                            HEAD~             HEAD
    ----------------------------------------------------------------------------------------
    7820.3: perl grep 'how.to'                      0.21(0.42+0.52)   0.21(0.31+0.58) +0.0%
    7820.7: perl grep '^how to'                     0.25(0.65+0.50)   0.20(0.31+0.57) -20.0%
    7820.11: perl grep '[how] to'                   0.30(0.90+0.50)   0.23(0.46+0.53) -23.3%
    7820.15: perl grep '(e.t[^ ]*|v.ry) rare'       0.30(1.19+0.38)   0.23(0.51+0.51) -23.3%
    7820.19: perl grep 'm(ú|u)lt.b(æ|y)te'          0.27(0.84+0.48)   0.21(0.34+0.57) -22.2%

I.e. the two are either neck-to-neck, but PCRE v2 usually pulls ahead,
when it does it's around 20% faster.

A brief note on thread safety: As noted in pcre2api(3) & pcre2jit(3)
the compiled pattern can be shared between threads, but not some of
the JIT context, however the grep threading support does all pattern &
JIT compilation in separate threads, so this code doesn't need to
concern itself with thread safety.

See commit 63e7e9d8b6 ("git-grep: Learn PCRE", 2011-05-09) for the
initial addition of PCRE v1. This change follows some of the same
patterns it did (and which were discussed on list at the time),
e.g. mocking up types with typedef instead of ifdef-ing them out when
USE_LIBPCRE2 isn't defined. This adds some trivial memory use to the
program, but makes the code look nicer.

1. https://lists.exim.org/lurker/message/20150105.162835.0666407a.en.html
2. https://lists.exim.org/lurker/thread/20170419.172322.833ee099.en.html

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-02 08:29:05 +09:00
Tyler Brazier
f15e7cf5cc pull: ff --rebase --autostash works in dirty repo
When `git pull --rebase --autostash` in a dirty repository resulted in a
fast-forward, nothing was being autostashed and the pull failed. This
was due to a shortcut to avoid running rebase when we can fast-forward,
but autostash is ignored on that codepath.

Now we will only take the shortcut if autostash is not in effect.
Based on a few tests against the git.git repo, the shortcut does not
seem to give us significant performance benefits, on Linux at least.
Regardless, it is more important to be correct than to be fast.

Signed-off-by: Tyler Brazier <tyler@tylerbrazier.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 14:09:39 +09:00
Stefan Beller
58f4203e7d builtin/fetch.c: respect 'submodule.recurse' option
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:36:36 +09:00
Stefan Beller
4e53d6a541 builtin/push.c: respect 'submodule.recurse' option
The closest mapping from the boolean 'submodule.recurse' set to "yes"
to the variety of submodule push modes is "on-demand", so implement that.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:36:36 +09:00
Stefan Beller
9071c078af builtin/grep.c: respect 'submodule.recurse' option
In builtin/grep.c we parse the config before evaluating the command line
options. This makes the task of teaching grep to respect the new config
option 'submodule.recurse' very easy by just parsing that option.

As an alternative I had implemented a similar structure to treat
submodules as the fetch/push command have, including
* aligning the meaning of the 'recurse_submodules' to possible submodule
  values RECURSE_SUBMODULES_* as defined in submodule.h.
* having a callback to parse the value and
* reacting to the RECURSE_SUBMODULES_DEFAULT state that was the initial
  state.

However all this is not needed for a true boolean value, so let's keep
it simple. However this adds another place where "submodule.recurse" is
parsed.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:36:36 +09:00
Stefan Beller
046b48239e Introduce 'submodule.recurse' option for worktree manipulators
Any command that understands '--recurse-submodules' can have its
default changed to true, by setting the new 'submodule.recurse'
option.

This patch includes read-tree/checkout/reset for working tree
manipulating commands. Later patches will cover other commands.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:36:36 +09:00
Stefan Beller
17f38cb704 submodule test invocation: only pass additional arguments
In a later patch we want to introduce a config option to trigger the
submodule recursing by default. As this option should be available and
uniform across all commands that deal with submodules we'd want to test
for this option in the submodule update library.

So instead of calling the whole test set again for
"git -c submodule.recurse foo" instead of "git foo --recurse-submodules",
we'd only want to introduce one basic test that tests if the option is
recognized and respected to not overload the test suite.

Change the test functions by taking only the argument and assemble the
command inside the test function by embedding the arguments into the
command that is "git $arguments --recurse-submodules".

It would be nice to do this for all functions in lib-submodule-update,
but we cannot do that for the non-recursing tests, as there we do not
just pass in a git command but whole functions. (See t3426 for example)

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-30 14:28:53 +09:00
Junio C Hamano
234b10d6f1 Merge branch 'ab/grep-preparatory-cleanup' into sb/submodule-blanket-recursive
* ab/grep-preparatory-cleanup: (31 commits)
  grep: assert that threading is enabled when calling grep_{lock,unlock}
  grep: given --threads with NO_PTHREADS=YesPlease, warn
  pack-objects: fix buggy warning about threads
  pack-objects & index-pack: add test for --threads warning
  test-lib: add a PTHREADS prerequisite
  grep: move is_fixed() earlier to avoid forward declaration
  grep: change internal *pcre* variable & function names to be *pcre1*
  grep: change the internal PCRE macro names to be PCRE1
  grep: factor test for \0 in grep patterns into a function
  grep: remove redundant regflags assignments
  grep: catch a missing enum in switch statement
  perf: add a comparison test of log --grep regex engines with -F
  perf: add a comparison test of log --grep regex engines
  perf: add a comparison test of grep regex engines with -F
  perf: add a comparison test of grep regex engines
  perf: emit progress output when unpacking & building
  perf: add a GIT_PERF_MAKE_COMMAND for when *_MAKE_OPTS won't do
  grep: add tests to fix blind spots with \0 patterns
  grep: prepare for testing binary regexes containing rx metacharacters
  grep: add a test helper function for less verbose -f \0 tests
  ...
2017-05-30 14:28:41 +09:00
Junio C Hamano
fa0624f79f Merge branch 'dt/unpack-save-untracked-cache-extension'
When "git checkout", "git merge", etc. manipulates the in-core
index, various pieces of information in the index extensions are
discarded from the original state, as it is usually not the case
that they are kept up-to-date and in-sync with the operation on the
main index.  The untracked cache extension is copied across these
operations now, which would speed up "git status" (as long as the
cache is properly invalidated).

* dt/unpack-save-untracked-cache-extension:
  unpack-trees: preserve index extensions
2017-05-30 11:16:45 +09:00
Junio C Hamano
9aa5559402 Merge branch 'jc/skip-test-in-the-middle'
A recent update to t5545-push-options.sh started skipping all the
tests in the script when a web server testing is disabled or
unavailable, not just the ones that require a web server.  Non HTTP
tests have been salvaged to always run in this script.

* jc/skip-test-in-the-middle:
  t5545: enhance test coverage when no http server is installed
  test: allow skipping the remainder
2017-05-30 11:16:44 +09:00
Junio C Hamano
b784d0be5d Merge branch 'ab/conditional-config-with-symlinks'
The recently introduced "[includeIf "gitdir:$dir"] path=..."
mechansim has further been taught to take symlinks into account.
The directory "$dir" specified in "gitdir:$dir" may be a symlink to
a real location, not something that $(getcwd) may return.  In such
a case, a realpath of "$dir" is compared with the real path of the
current repository to determine if the contents from the named path
should be included.

* ab/conditional-config-with-symlinks:
  config: match both symlink & realpath versions in IncludeIf.gitdir:*
2017-05-30 11:16:44 +09:00
Junio C Hamano
02c531eba2 Merge branch 'jt/fetch-allow-tip-sha1-implicitly'
There is no good reason why "git fetch $there $sha1" should fail
when the $sha1 names an object at the tip of an advertised ref,
even when the other side hasn't enabled allowTipSHA1InWant.

* jt/fetch-allow-tip-sha1-implicitly:
  fetch-pack: always allow fetching of literal SHA1s
2017-05-30 11:16:43 +09:00
Junio C Hamano
07d4c76005 Merge branch 'jt/send-email-validate-hook'
"git send-email" learned to run sendemail-validate hook to inspect
and reject a message before sending it out.

* jt/send-email-validate-hook:
  send-email: support validate hook
2017-05-30 11:16:43 +09:00
Junio C Hamano
c05e1231da Merge branch 'jh/memihash-opt'
perf-test update.

* jh/memihash-opt:
  p0004: don't error out if test repo is too small
  p0004: don't abort if multi-threaded is too slow
  p0004: use test_perf
  p0004: avoid using pipes
  p0004: simplify calls of test-lazy-init-name-hash
2017-05-30 11:16:43 +09:00
Junio C Hamano
7d5e13f652 Merge branch 'bw/forking-and-threading'
The "run-command" API implementation has been made more robust
against dead-locking in a threaded environment.

* bw/forking-and-threading:
  usage.c: drop set_error_handle()
  run-command: restrict PATH search to executable files
  run-command: expose is_executable function
  run-command: block signals between fork and execve
  run-command: add note about forking and threading
  run-command: handle dup2 and close errors in child
  run-command: eliminate calls to error handling functions in child
  run-command: don't die in child when duping /dev/null
  run-command: prepare child environment before forking
  string-list: add string_list_remove function
  run-command: use the async-signal-safe execv instead of execvp
  run-command: prepare command before forking
  t0061: run_command executes scripts without a #! line
  t5550: use write_script to generate post-update hook
2017-05-30 11:16:41 +09:00
Junio C Hamano
140921ca21 Merge branch 'ab/perf-wildmatch'
Add perf-test for wildmatch.

* ab/perf-wildmatch:
  perf: add test showing exponential growth in path globbing
  perf: add function to setup a fresh test repo
2017-05-30 11:16:41 +09:00
Junio C Hamano
3c5a78280f Merge branch 'bw/pathspec-sans-the-index'
Simplify parse_pathspec() codepath and stop it from looking at the
default in-core index.

* bw/pathspec-sans-the-index:
  pathspec: convert find_pathspecs_matching_against_index to take an index
  pathspec: remove PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP
  ls-files: prevent prune_cache from overeagerly pruning submodules
  pathspec: remove PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE flag
  submodule: add die_in_unpopulated_submodule function
  pathspec: provide a more descriptive die message
2017-05-30 11:16:40 +09:00
Junio C Hamano
78089b71da Merge branch 'jc/name-rev-lw-tag'
"git describe --contains" penalized light-weight tags so much that
they were almost never considered.  Instead, give them about the
same chance to be considered as an annotated tag that is the same
age as the underlying commit would.

* jc/name-rev-lw-tag:
  name-rev: favor describing with tags and use committer date to tiebreak
  name-rev: refactor logic to see if a new candidate is a better name
2017-05-30 11:16:40 +09:00
Sahil Dua
b8f354f294 branch test: fix invalid config key access
Fixes the test by changing "branch.s/s/dummy" to "branch.s/s.dummy" which is
the right way of accessing config key "branch.s/s.dummy". Purpose of
this test is to confirm that this key doesn't exist after the branch
"s/s" has been renamed to "s".

Earlier it was trying to access invalid config key and hence was getting
an error. However, this wasn't caught because we were expecting the
command to fail for other reason as mentioned above.

Signed-off-by: Sahil Dua <sahildua2305@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-29 13:18:43 +09:00
Junio C Hamano
b42b41b75a Merge branch 'jk/ignore-broken-tags-when-ignoring-missing-links'
Tag objects, which are not reachable from any ref, that point at
missing objects were mishandled by "git gc" and friends (they
should silently be ignored instead)

* jk/ignore-broken-tags-when-ignoring-missing-links:
  revision.c: ignore broken tags with ignore_missing_links
2017-05-29 12:34:54 +09:00
Junio C Hamano
69b050eeb8 Merge branch 'jk/alternate-ref-optim'
A test allowed both "git push" and "git receive-pack" on the other
end write their traces into the same file.  This is OK on platforms
that allows atomically appending to a file opened with O_APPEND,
but on other platforms led to a mangled output, causing
intermittent test failures.  This has been fixed by disabling
traces from "receive-pack" in the test.

* jk/alternate-ref-optim:
  t5400: avoid concurrent writes into a trace file
2017-05-29 12:34:53 +09:00
Junio C Hamano
965993d1ef Merge branch 'bm/interpret-trailers-cut-line-is-eom'
"git interpret-trailers", when used as GIT_EDITOR for "git commit
-v", looked for and appended to a trailer block at the very end,
i.e. at the end of the "diff" output.  The command has been
corrected to pay attention to the cut-mark line "commit -v" adds to
the buffer---the real trailer block should appear just before it.

* bm/interpret-trailers-cut-line-is-eom:
  interpret-trailers: honor the cut line
2017-05-29 12:34:53 +09:00
Junio C Hamano
220c6a7080 Merge branch 'jk/bug-to-abort'
Introduce the BUG() macro to improve die("BUG: ...").

* jk/bug-to-abort:
  usage: add NORETURN to BUG() function definitions
  config: complain about --local outside of a git repo
  setup_git_env: convert die("BUG") to BUG()
  usage.c: add BUG() function
2017-05-29 12:34:45 +09:00
Junio C Hamano
15c9672345 Merge branch 'js/eol-on-ourselves'
Make sure our tests would pass when the sources are checked out
with "platform native" line ending convention by default on
Windows.  Some "text" files out tests use and the test scripts
themselves that are meant to be run with /bin/sh, ought to be
checked out with eol=LF even on Windows.

* js/eol-on-ourselves:
  t4051: mark supporting files as requiring LF-only line endings
  Fix the remaining tests that failed with core.autocrlf=true
  t3901: move supporting files into t/t3901/
  completion: mark bash script as LF-only
  git-new-workdir: mark script as LF-only
  Fix build with core.autocrlf=true
2017-05-29 12:34:45 +09:00
Junio C Hamano
137a2613a0 Merge branch 'jk/disable-pack-reuse-when-broken'
"pack-objects" can stream a slice of an existing packfile out when
the pack bitmap can tell that the reachable objects are all needed
in the output, without inspecting individual objects.  This
strategy however would not work well when "--local" and other
options are in use, and need to be disabled.

* jk/disable-pack-reuse-when-broken:
  t5310: fix "; do" style
  pack-objects: disable pack reuse for object-selection options
2017-05-29 12:34:44 +09:00
Junio C Hamano
6b526ced6f Merge branch 'bc/object-id'
Conversion from uchar[20] to struct object_id continues.

* bc/object-id: (53 commits)
  object: convert parse_object* to take struct object_id
  tree: convert parse_tree_indirect to struct object_id
  sequencer: convert do_recursive_merge to struct object_id
  diff-lib: convert do_diff_cache to struct object_id
  builtin/ls-tree: convert to struct object_id
  merge: convert checkout_fast_forward to struct object_id
  sequencer: convert fast_forward_to to struct object_id
  builtin/ls-files: convert overlay_tree_on_cache to object_id
  builtin/read-tree: convert to struct object_id
  sha1_name: convert internals of peel_onion to object_id
  upload-pack: convert remaining parse_object callers to object_id
  revision: convert remaining parse_object callers to object_id
  revision: rename add_pending_sha1 to add_pending_oid
  http-push: convert process_ls_object and descendants to object_id
  refs/files-backend: convert many internals to struct object_id
  refs: convert struct ref_update to use struct object_id
  ref-filter: convert some static functions to struct object_id
  Convert struct ref_array_item to struct object_id
  Convert the verify_pack callback to struct object_id
  Convert lookup_tag to struct object_id
  ...
2017-05-29 12:34:43 +09:00
Junio C Hamano
f382b756a6 Merge branch 'nd/split-index-unshare'
Plug some leaks and updates internal API used to implement the
split index feature to make it easier to avoid such a leak in the
future.

* nd/split-index-unshare:
  p3400: add perf tests for rebasing many changes
  split-index: add and use unshare_split_index()
2017-05-29 12:34:43 +09:00
Junio C Hamano
a531ecf399 Merge branch 'jk/diff-submodule-diff-inline'
"git diff --submodule=diff" now recurses into nested submodules.

* jk/diff-submodule-diff-inline:
  diff: recurse into nested submodules for inline diff
2017-05-29 12:34:42 +09:00
Junio C Hamano
f1101cefbd Merge branch 'sb/checkout-recurse-submodules'
"git checkout --recurse-submodules" did not quite work with a
submodule that itself has submodules.

* sb/checkout-recurse-submodules:
  submodule: properly recurse for read-tree and checkout
  submodule: avoid auto-discovery in new working tree manipulator code
  submodule_move_head: reuse child_process structure for futher commands
2017-05-29 12:34:41 +09:00
Junio C Hamano
5f074ca7e8 Merge branch 'sb/reset-recurse-submodules'
"git reset" learned "--recurse-submodules" option.

* sb/reset-recurse-submodules:
  builtin/reset: add --recurse-submodules switch
  submodule.c: submodule_move_head works with broken submodules
  submodule.c: uninitialized submodules are ignored in recursive commands
  entry.c: submodule recursing: respect force flag correctly
2017-05-29 12:34:40 +09:00
Jeff King
c99eddd835 verify_filename(): treat ":(magic)" as a pathspec
For commands that take revisions and pathspecs, magic
pathspecs like ":(exclude)foo" require the user to specify
a disambiguating "--", since they do not match a file in the
filesystem, like:

  git grep foo -- :(exclude)bar

This makes them more annoying to use than they need to be.
We loosened the rules for wildcards in 28fcc0b71 (pathspec:
avoid the need of "--" when wildcard is used, 2015-05-02).
Let's do the same for pathspecs with long-form magic.

We already handle the short-forms ":/" and ":^" specially in
check_filename(), so we don't need to handle them here. And
in fact, we could do the same with long-form magic, parsing
out the actual filename and making sure it exists. But there
are a few reasons not to do it that way:

  - the parsing gets much more complicated, and we'd want to
    hand it off to the pathspec code. But that code isn't
    ready to do this kind of speculative parsing (it's happy
    to die() when it sees a syntactically invalid pathspec).

  - not all pathspec magic maps to a filesystem path. E.g.,
    :(attr) should be treated as a pathspec regardless of
    what is in the filesystem

  - we can be a bit looser with ":(" than with the
    short-form ":/", because it is much less likely to have
    a false positive. Whereas ":/" also means "search for a
    commit with this regex".

Note that because the change is in verify_filename() and not
in its helper check_filename(), this doesn't affect the
verify_non_filename() case. I.e., if an item that matches
our new rule doesn't resolve as an object, we may fallback
to treating it as a pathspec (rather than complaining it
doesn't exist). But if it does resolve (e.g., as a file in
the index that starts with an open-paren), we won't then
complain that it's also a valid pathspec. This matches the
wildcard-exception behavior.

And of course in either case, one can always insert the "--"
to get more precise results.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-29 11:36:56 +09:00
Jeff King
42471bcee4 check_filename(): handle ":^" path magic
We special-case "git log :/foo" to work when "foo" exists in
the working tree. But :^ (and its alias :!) do not get the
same treatment, requiring the user to supply a
disambiguating "--". Let's make them work without requiring
the user to type the "--".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-29 11:36:56 +09:00
Jeff King
be6ed3f334 t4208: add check for ":/" without matching file
The DWIM magic in check_filename() doesn't just recognize
":/". It actually makes sure that the file it points to
exists. t4208 checks only the case where the path is
present, not the opposite. Since the next patches will be
touching this area, let's add a test to make sure it
continues working.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-29 11:36:53 +09:00
Ævar Arnfjörð Bjarmason
44e2ff09ce wildmatch test: remove redundant duplicate test
Remove a test line that's exactly the same as the preceding
line.

This was brought in in commit feabcc173b ("Integrate wildmatch to
git", 2012-10-15), these tests are originally copied from rsync.git,
but the duplicate line was never present there, so must have just
snuck in during integration with git by accident.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-29 09:54:15 +09:00
Ævar Arnfjörð Bjarmason
7531a2dd87 log: add -P as a synonym for --perl-regexp
Add a short -P option as a synonym for the longer --perl-regexp, for
consistency with the options the corresponding grep invocations
accept.

This was intentionally omitted in commit 727b6fc3ed ("log --grep:
accept --basic-regexp and --perl-regexp", 2012-10-03) for unspecified
future use.

Make it consistent with "grep" rather than to keep it open for future
use, and to avoid the confusion of -P meaning different things for
grep & log, as is the case with the -G option.

As noted in the aforementioned commit the --basic-regexp option can't
have a corresponding -G argument, as the log command already uses that
for -G<regex>.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:59:05 +09:00
Ævar Arnfjörð Bjarmason
d1edee4ada grep: given --threads with NO_PTHREADS=YesPlease, warn
Add a warning about missing thread support when grep.threads or
--threads is set to a non 0 (default) or 1 (no parallelism) value
under NO_PTHREADS=YesPlease.

This is for consistency with the index-pack & pack-objects commands,
which also take a --threads option & are configurable via
pack.threads, and have long warned about the same under
NO_PTHREADS=YesPlease.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:37 +09:00
Ævar Arnfjörð Bjarmason
2e96d8154f pack-objects: fix buggy warning about threads
Fix a buggy warning about threads under NO_PTHREADS=YesPlease. Due to
re-using the delta_search_threads variable for both the state of the
"pack.threads" config & the --threads option, setting "pack.threads"
but not supplying --threads would trigger the warning for both
"pack.threads" & --threads.

Solve this bug by resetting the delta_search_threads variable in
git_pack_config(), it might then be set by --threads again and be
subsequently warned about, as the test I'm changing here asserts.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:37 +09:00
Ævar Arnfjörð Bjarmason
967a3eaf43 pack-objects & index-pack: add test for --threads warning
Add a test for the warning that's emitted when --threads or
pack.threads is provided under NO_PTHREADS=YesPlease. This uses the
new PTHREADS prerequisite.

The assertion for C_LOCALE_OUTPUT in the latter test is currently
redundant, since unlike index-pack the pack-objects warnings aren't
i18n'd. However they might be changed to be i18n'd in the future, and
there's no harm in future-proofing the test.

There's an existing bug in the implementation of pack-objects which
this test currently tests for as-is. Details about the bug & the fix
are included in a follow-up change.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:37 +09:00
Ævar Arnfjörð Bjarmason
68c7d2761d test-lib: add a PTHREADS prerequisite
Add a PTHREADS prerequisite which is false when git is compiled with
NO_PTHREADS=YesPlease.

There's lots of custom code that runs when threading isn't available,
but before this prerequisite there was no way to test it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:37 +09:00
Ævar Arnfjörð Bjarmason
3485bea157 grep: change the internal PCRE macro names to be PCRE1
Change the internal USE_LIBPCRE define, & build options flag to use a
naming convention ending in PCRE1, without changing the long-standing
USE_LIBPCRE Makefile flag which enables this code.

This is for preparation for libpcre2 support where having things like
USE_LIBPCRE and USE_LIBPCRE2 in any more places than we absolutely
need to for backwards compatibility with old Makefile arguments would
be confusing.

In some ways it would be better to change everything that now uses
USE_LIBPCRE to use USE_LIBPCRE1, and to make specifying
USE_LIBPCRE (or --with-pcre) an error. This would impose a one-time
burden on packagers of git to s/USE_LIBPCRE/USE_LIBPCRE1/ in their
build scripts.

However I'd like to leave the door open to making
USE_LIBPCRE=YesPlease eventually mean USE_LIBPCRE2=YesPlease,
i.e. once PCRE v2 is ubiquitous enough that it makes sense to make it
the default.

This code and the USE_LIBPCRE Makefile argument was added in commit
63e7e9d8b6 ("git-grep: Learn PCRE", 2011-05-09). At the time there was
no indication that the PCRE project would release an entirely new &
incompatible API around 3 years later.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:37 +09:00
Ævar Arnfjörð Bjarmason
723fc5a6e1 perf: add a comparison test of log --grep regex engines with -F
Add a performance comparison test of log --grepgrep regex engines
given fixed strings.

See the preceding fixed-string t/perf change ("perf: add a comparison
test of grep regex engines with -F", 2017-04-21) for notes about this,
in particular this mostly tests exactly the same codepath now, but
might not in the future:

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux ./run p4221-log-grep-engines-fixed.sh
    [...]
    Test                                     this tree
    --------------------------------------------------------
    4221.1: fixed log --grep='int'           5.99(5.55+0.40)
    4221.2: basic log --grep='int'           5.92(5.56+0.31)
    4221.3: extended log --grep='int'        6.01(5.51+0.45)
    4221.4: perl log --grep='int'            5.99(5.56+0.38)
    4221.6: fixed log --grep='uncommon'      5.06(4.76+0.27)
    4221.7: basic log --grep='uncommon'      5.02(4.78+0.21)
    4221.8: extended log --grep='uncommon'   4.99(4.78+0.20)
    4221.9: perl log --grep='uncommon'       5.00(4.72+0.26)
    4221.11: fixed log --grep='æ'            5.35(5.12+0.20)
    4221.12: basic log --grep='æ'            5.34(5.11+0.20)
    4221.13: extended log --grep='æ'         5.39(5.10+0.22)
    4221.14: perl log --grep='æ'             5.44(5.16+0.23)

Only the non-ASCII -i case is different:

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux GIT_PERF_4221_LOG_OPTS=' -i' ./run p4221-log-grep-engines-fixed.sh
    [...]
    Test                                        this tree
    -----------------------------------------------------------
    4221.1: fixed log -i --grep='int'           6.17(5.77+0.35)
    4221.2: basic log -i --grep='int'           6.16(5.59+0.39)
    4221.3: extended log -i --grep='int'        6.15(5.70+0.39)
    4221.4: perl log -i --grep='int'            6.15(5.69+0.38)
    4221.6: fixed log -i --grep='uncommon'      5.10(4.88+0.21)
    4221.7: basic log -i --grep='uncommon'      5.04(4.76+0.25)
    4221.8: extended log -i --grep='uncommon'   5.07(4.82+0.23)
    4221.9: perl log -i --grep='uncommon'       5.03(4.78+0.22)
    4221.11: fixed log -i --grep='æ'            5.93(5.65+0.25)
    4221.12: basic log -i --grep='æ'            5.88(5.62+0.25)
    4221.13: extended log -i --grep='æ'         6.02(5.69+0.29)
    4221.14: perl log -i --grep='æ'             5.36(5.06+0.29)

See commit ("perf: add a comparison test of grep regex engines",
2017-04-19) for details on the machine the above test run was executed
on.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:37 +09:00
Ævar Arnfjörð Bjarmason
c8f39be67e perf: add a comparison test of log --grep regex engines
Add a very basic performance comparison test comparing the POSIX
basic, extended and perl engines with patterns matching log messages
via --grep=<pattern>.

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux ./run p4220-log-grep-engines.sh
    [...]
    Test                                                  this tree
    ---------------------------------------------------------------------
    4220.1: basic log --grep='how.to'                     6.22(6.00+0.21)
    4220.2: extended log --grep='how.to'                  6.23(5.98+0.23)
    4220.3: perl log --grep='how.to'                      6.07(5.79+0.25)
    4220.5: basic log --grep='^how to'                    6.19(5.93+0.22)
    4220.6: extended log --grep='^how to'                 6.19(5.93+0.23)
    4220.7: perl log --grep='^how to'                     6.14(5.88+0.24)
    4220.9: basic log --grep='[how] to'                   6.96(6.65+0.28)
    4220.10: extended log --grep='[how] to'               6.96(6.69+0.24)
    4220.11: perl log --grep='[how] to'                   6.95(6.58+0.33)
    4220.13: basic log --grep='\(e.t[^ ]*\|v.ry\) rare'   7.10(6.80+0.27)
    4220.14: extended log --grep='(e.t[^ ]*|v.ry) rare'   7.07(6.80+0.26)
    4220.15: perl log --grep='(e.t[^ ]*|v.ry) rare'       7.70(7.46+0.22)
    4220.17: basic log --grep='m\(ú\|u\)lt.b\(æ\|y\)te'   6.12(5.87+0.24)
    4220.18: extended log --grep='m(ú|u)lt.b(æ|y)te'      6.14(5.84+0.26)
    4220.19: perl log --grep='m(ú|u)lt.b(æ|y)te'          6.16(5.93+0.20)

With -i:

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux GIT_PERF_4220_LOG_OPTS=' -i' ./run p4220-log-grep-engines.sh
    [...]
    Test                                                     this tree
    ------------------------------------------------------------------------
    4220.1: basic log -i --grep='how.to'                     6.74(6.41+0.32)
    4220.2: extended log -i --grep='how.to'                  6.78(6.55+0.22)
    4220.3: perl log -i --grep='how.to'                      6.06(5.77+0.28)
    4220.5: basic log -i --grep='^how to'                    6.80(6.57+0.22)
    4220.6: extended log -i --grep='^how to'                 6.83(6.52+0.29)
    4220.7: perl log -i --grep='^how to'                     6.16(5.94+0.20)
    4220.9: basic log -i --grep='[how] to'                   7.87(7.61+0.24)
    4220.10: extended log -i --grep='[how] to'               7.85(7.57+0.27)
    4220.11: perl log -i --grep='[how] to'                   7.03(6.75+0.25)
    4220.13: basic log -i --grep='\(e.t[^ ]*\|v.ry\) rare'   8.68(8.41+0.25)
    4220.14: extended log -i --grep='(e.t[^ ]*|v.ry) rare'   8.80(8.44+0.28)
    4220.15: perl log -i --grep='(e.t[^ ]*|v.ry) rare'       7.85(7.56+0.26)
    4220.17: basic log -i --grep='m\(ú\|u\)lt.b\(æ\|y\)te'   6.94(6.68+0.24)
    4220.18: extended log -i --grep='m(ú|u)lt.b(æ|y)te'      7.04(6.76+0.24)
    4220.19: perl log -i --grep='m(ú|u)lt.b(æ|y)te'          6.26(5.92+0.29)

See commit ("perf: add a comparison test of grep regex engines",
2017-04-19) for details on the machine the above test run was executed
on.

Before commit ("log: make --regexp-ignore-case work with
--perl-regexp", 2017-05-20) this test will almost definitely
fail (depending on the repo) if passed the -i option, since it wasn't
properly supported under PCRE.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:37 +09:00
Ævar Arnfjörð Bjarmason
bc22d81370 perf: add a comparison test of grep regex engines with -F
Add a performance comparison test of grep regex engines given fixed
strings.

The current logic in compile_regexp() ignores the engine parameter and
uses kwset() to search for these, so this test shows no difference
between engines right now:

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux ./run p7821-grep-engines-fixed.sh
    [...]
    Test                             this tree
    ------------------------------------------------
    7821.1: fixed grep int           0.56(1.67+0.68)
    7821.2: basic grep int           0.57(1.70+0.57)
    7821.3: extended grep int        0.59(1.76+0.51)
    7821.4: perl grep int            1.08(1.71+0.55)
    7821.6: fixed grep uncommon      0.23(0.55+0.50)
    7821.7: basic grep uncommon      0.24(0.55+0.50)
    7821.8: extended grep uncommon   0.26(0.55+0.52)
    7821.9: perl grep uncommon       0.24(0.58+0.47)
    7821.11: fixed grep æ            0.36(1.30+0.42)
    7821.12: basic grep æ            0.36(1.32+0.40)
    7821.13: extended grep æ         0.38(1.30+0.42)
    7821.14: perl grep æ             0.35(1.24+0.48)

Only when run with -i via GIT_PERF_7821_GREP_OPTS=' -i' do we avoid
avoid going through the same kwset.[ch] codepath, see the "Even when
-F..."  comment in grep.c. This only kicks for the non-ASCII case:

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux GIT_PERF_7821_GREP_OPTS=' -i' ./run p7821-grep-engines-fixed.sh
    [...]
    Test                                this tree
    ---------------------------------------------------
    7821.1: fixed grep -i int           0.62(2.10+0.57)
    7821.2: basic grep -i int           0.68(1.90+0.61)
    7821.3: extended grep -i int        0.78(1.94+0.57)
    7821.4: perl grep -i int            0.98(1.78+0.74)
    7821.6: fixed grep -i uncommon      0.24(0.44+0.64)
    7821.7: basic grep -i uncommon      0.25(0.56+0.54)
    7821.8: extended grep -i uncommon   0.27(0.62+0.45)
    7821.9: perl grep -i uncommon       0.24(0.59+0.49)
    7821.11: fixed grep -i æ            0.30(0.96+0.39)
    7821.12: basic grep -i æ            0.27(0.92+0.44)
    7821.13: extended grep -i æ         0.28(0.90+0.46)
    7821.14: perl grep -i æ             0.28(0.74+0.49)

I'm planning to change how fixed-string searching happens. This test
gives a baseline for comparing performance before & after any such
change.

See commit ("perf: add a comparison test of grep regex engines",
2017-04-19) for details on the machine the above test run was executed
on.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:36 +09:00
Ævar Arnfjörð Bjarmason
3878c7a540 perf: add a comparison test of grep regex engines
Add a very basic performance comparison test comparing the POSIX
basic, extended and perl engines.

In theory the "basic" and "extended" engines should be implemented
using the same underlying code with a slightly different pattern
parser, but some implementations may not do this. Jump through some
slight hoops to test both, which is worthwhile since "basic" is the
default.

Running this on an i7 3.4GHz Linux 4.9.0-2 Debian testing against a
checkout of linux.git & latest upstream PCRE, both PCRE and git
compiled with -O3 using gcc 7.1.1:

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux ./run p7820-grep-engines.sh
    [...]
    Test                                            this tree
    ---------------------------------------------------------------
    7820.1: basic grep 'how.to'                     0.34(1.24+0.53)
    7820.2: extended grep 'how.to'                  0.33(1.23+0.45)
    7820.3: perl grep 'how.to'                      0.31(1.05+0.56)
    7820.5: basic grep '^how to'                    0.32(1.24+0.42)
    7820.6: extended grep '^how to'                 0.33(1.20+0.44)
    7820.7: perl grep '^how to'                     0.57(2.67+0.42)
    7820.9: basic grep '[how] to'                   0.51(2.16+0.45)
    7820.10: extended grep '[how] to'               0.49(2.20+0.43)
    7820.11: perl grep '[how] to'                   0.56(2.60+0.43)
    7820.13: basic grep '\(e.t[^ ]*\|v.ry\) rare'   0.66(3.25+0.40)
    7820.14: extended grep '(e.t[^ ]*|v.ry) rare'   0.65(3.19+0.46)
    7820.15: perl grep '(e.t[^ ]*|v.ry) rare'       1.05(5.74+0.34)
    7820.17: basic grep 'm\(ú\|u\)lt.b\(æ\|y\)te'   0.34(1.28+0.47)
    7820.18: extended grep 'm(ú|u)lt.b(æ|y)te'      0.34(1.38+0.38)
    7820.19: perl grep 'm(ú|u)lt.b(æ|y)te'          0.39(1.56+0.44)

Options can also be passed to git-grep via the GIT_PERF_7820_GREP_OPTS
environment variable. There are various modes such as "-v" that have
very different performance profiles, but handling the combinatorial
explosion of testing all those options would make this script much
more complex and harder to maintain. Instead just add the ability to
do one-shot runs with arbitrary options, e.g.:

    $ GIT_PERF_REPEAT_COUNT=10 GIT_PERF_LARGE_REPO=~/g/linux GIT_PERF_7820_GREP_OPTS=" -i" ./run p7820-grep-engines.sh
    [...]
    Test                                               this tree
    ------------------------------------------------------------------
    7820.1: basic grep -i 'how.to'                     0.49(1.72+0.38)
    7820.2: extended grep -i 'how.to'                  0.46(1.64+0.42)
    7820.3: perl grep -i 'how.to'                      0.44(1.45+0.45)
    7820.5: basic grep -i '^how to'                    0.47(1.76+0.38)
    7820.6: extended grep -i '^how to'                 0.47(1.70+0.42)
    7820.7: perl grep -i '^how to'                     0.65(2.72+0.37)
    7820.9: basic grep -i '[how] to'                   0.86(3.64+0.42)
    7820.10: extended grep -i '[how] to'               0.84(3.62+0.46)
    7820.11: perl grep -i '[how] to'                   0.73(3.06+0.39)
    7820.13: basic grep -i '\(e.t[^ ]*\|v.ry\) rare'   1.63(8.13+0.36)
    7820.14: extended grep -i '(e.t[^ ]*|v.ry) rare'   1.64(8.01+0.44)
    7820.15: perl grep -i '(e.t[^ ]*|v.ry) rare'       1.44(6.88+0.44)
    7820.17: basic grep -i 'm\(ú\|u\)lt.b\(æ\|y\)te'   0.66(2.67+0.44)
    7820.18: extended grep -i 'm(ú|u)lt.b(æ|y)te'      0.66(2.67+0.43)
    7820.19: perl grep -i 'm(ú|u)lt.b(æ|y)te'          0.59(2.31+0.37)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:52:36 +09:00
Nguyễn Thái Ngọc Duy
e9d983f116 wrapper.c: add and use fopen_or_warn()
When fopen() returns NULL, it could be because the given path does not
exist, but it could also be some other errors and the caller has to
check. Add a wrapper so we don't have to repeat the same error check
everywhere.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:33:56 +09:00
Nguyễn Thái Ngọc Duy
11dc1fcb3f wrapper.c: add and use warn_on_fopen_errors()
In many places, Git warns about an inaccessible file after a fopen()
failed. To discern these cases from other cases where we want to warn
about inaccessible files, introduce a new helper specifically to test
whether fopen() failed because the current user lacks the permission to
open file in question.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:33:55 +09:00
Nguyễn Thái Ngọc Duy
e2d90fd1c3 config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSD
This variable is added [1] with the assumption that on a sane system,
fopen(<dir>, "r") should return NULL. Linux and FreeBSD do not meet this
expectation while at least Windows and AIX do. Let's make sure they
behave the same way.

I only tested one version on Linux (4.7.0 with glibc 2.22) and
FreeBSD (11.0) but since GNU/kFreeBSD is fbsd kernel with gnu userspace,
I'm pretty sure it shares the same problem.

[1] cba22528fa (Add compat/fopen.c which returns NULL on attempt to open
    directory - 2008-02-08)

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26 12:33:55 +09:00
Jeff King
30d005c020 diff: use blob path for blob/file diffs
When we diff a blob against a working tree file like:

  git diff HEAD:Makefile Makefile

we always use the working tree filename for both sides of
the diff. In most cases that's fine, as the two would be the
same anyway, as above. And until recently, we used the
"name" for the blob, not the path, which would have the
messy "HEAD:" on the beginning.

But when they don't match, like:

  git diff HEAD:old_path new_path

it makes sense to show both names.

This patch uses the blob's path field if it's available, and
otherwise falls back to using the filename (in preference to
the blob's name, which is likely to be garbage like a raw
sha1).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-24 10:59:27 +09:00
Jeff King
158b06caee diff: use pending "path" if it is available
There's a subtle distinction between "name" and "path" for a
blob that we resolve: the name is what the user told us on
the command line, and the path is what we traversed when
finding the blob within a tree (if we did so).

When we diff blobs directly, we use "name", but "path" is
more likely to be useful to the user (it will find the
correct .gitattributes, and give them a saner diff header).

We still have to fall back to using the name for some cases
(i.e., any blob reference that isn't of the form tree:path).
That's the best we can do in such a case.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-24 10:59:27 +09:00
Jeff King
101dd4de16 handle_revision_arg: record modes for "a..b" endpoints
The "a..b" revision syntax was designed to handle commits,
so it doesn't bother to record any mode we find while
traversing a "tree:path" endpoint. These days "git diff" can
diff blobs using either "a:path..b:path" (with dots) or
"a:path b:path" (without), but the two behave
inconsistently, as the with-dots version fails to notice the
mode.

Let's teach the dot-dot range parser to record modes; it
doesn't cost us anything, and it makes this case work.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-24 10:59:27 +09:00
Jeff King
74e89110a3 t4063: add tests of direct blob diffs
The git-diff command can directly compare two blobs (or a
blob and a file), but we don't test this at all. Let's add
some basic tests that reveal a few problems.

There are basically four interesting inputs:

  1. sha1 against sha1 (where diff has no information beyond
     the contents)

  2. tree:path against tree:path (where it can get
     information via get_sha1_with_context)

  3. Same as (2), but using the ".." range syntax

  4. tree:path against a filename

And beyond generating a sane diff, we care about a few
little bits: which paths they show in the diff header, and
whether they correctly pick up a mode change.

They should all be able to show a mode except for (1),
though note that case (3) is currently broken.

For the headers, we would ideally show the path within the
tree if we have it, making:

  git diff a:path b:path

look the same as:

  git diff a b -- path

We can't always do that (e.g., in the direct sha1/sha1 diff,
we have no path to show), in which case we should fall back
to the name that resolved to the blob (which is nonsense
from the repository's perspective, but is the best we can
do).

Aside from the fallback case in (1), none of the cases get
this right. Cases (2) and (3) always show the full
tree:path, even though we should be able to know just the
"path" portion.

Case (4) picks up the filename path, but assigns it to
_both_ sides of the diff. So this works for:

  git diff tree:path path

but not for:

  git diff tree:other_path path

The appropriate tests are marked to expect failure.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-24 10:59:27 +09:00
Jeff King
ed79b2cf03 handle_revision_arg: reset "dotdot" consistently
When we are parsing a range like "a..b", we write a
temporary NUL over the first ".", so that we can access the
names "a" and "b" as C strings. But our restoration of the
original "." is done at inconsistent times, which can lead
to confusing results.

For most calls, we restore the "." after we resolve the
names, but before we call verify_non_filename().  This means
that when we later call add_pending_object(), the name for
the left-hand "a" has been re-expanded to "a..b". You can
see this with:

  git log --source a...b

where "b" will be correctly marked with "b", but "a" will be
marked with "a...b". Likewise with "a..b" (though you need
to use --boundary to even see "a" at all in that case).

To top off the confusion, when the REVARG_CANNOT_BE_FILENAME
flag is set, we skip the non-filename check, and leave the
NUL in place.

That means we do report the correct name for "a" in the
pending array. But some code paths try to show the whole
"a...b" name in error messages, and these erroneously show
only "a" instead of "a...b". E.g.:

  $ git cherry-pick HEAD:foo...HEAD:foo
  error: object d95f3ad14dee633a758d2e331151e950dd13e4ed is a blob, not a commit
  error: object d95f3ad14dee633a758d2e331151e950dd13e4ed is a blob, not a commit
  fatal: Invalid symmetric difference expression HEAD:foo

(That last message should be "HEAD:foo...HEAD:foo"; I used
cherry-pick because it passes the CANNOT_BE_FILENAME flag).

As an interesting side note, cherry-pick actually looks at
and re-resolves the arguments from the pending->name fields.
So it would have been visibly broken by the first bug, but
the effect was canceled out by the second one.

This patch makes the whole function consistent by re-writing
the NUL immediately after calling verify_non_filename(), and
then restoring the "." as appropriate in some error-printing
and early-return code paths.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-24 10:59:03 +09:00
Samuel Lijin
6b1db43109 clean: teach clean -d to preserve ignored paths
There is an implicit assumption that a directory containing only
untracked and ignored paths should itself be considered untracked. This
makes sense in use cases where we're asking if a directory should be
added to the git database, but not when we're asking if a directory can
be safely removed from the working tree; as a result, clean -d would
assume that an "untracked" directory containing ignored paths could be
deleted, even though doing so would also remove the ignored paths.

To get around this, we teach clean -d to collect ignored paths and skip
an untracked directory if it contained an ignored path, instead just
removing the untracked contents thereof. To achieve this, cmd_clean()
has to collect all untracked contents of untracked directories, in
addition to all ignored paths, to determine which untracked dirs must be
skipped (because they contain ignored paths) and which ones should *not*
be skipped.

For this purpose, correct_untracked_entries() is introduced to prune a
given dir_struct of untracked entries containing ignored paths and those
untracked entries encompassed by the untracked entries which are not
pruned away.

A memory leak is also fixed in cmd_clean().

This also fixes the known breakage in t7300, since clean -d now skips
untracked directories containing ignored paths.

Signed-off-by: Samuel Lijin <sxlijin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-24 07:31:50 +09:00
Michael Haggerty
64da41993a ref_store: take a msg parameter when deleting references
Just because the files backend can't retain reflogs for deleted
references is no reason that they shouldn't be supported by the
virtual method interface. Also, `delete_ref()` and `refs_delete_ref()`
have already gained `msg` parameters. Now let's add them to
`delete_refs()` and `refs_delete_refs()`.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-23 14:29:53 +09:00
Michael Haggerty
23739aa2b3 t3600: clean up permissions test properly
The test of failing `git rm -f` removes the write permissions on the
test directory, but fails to restore them if the test fails. This
means that the test temporary directory cannot be cleaned up, which
means that subsequent attempts to run the test fail mysteriously.

Instead, do the cleanup in a `test_when_finished` block so that it
can't be skipped.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-23 14:29:51 +09:00
Junio C Hamano
ca7b2ab07d Merge branch 'bc/object-id'
* bc/object-id: (53 commits)
  object: convert parse_object* to take struct object_id
  tree: convert parse_tree_indirect to struct object_id
  sequencer: convert do_recursive_merge to struct object_id
  diff-lib: convert do_diff_cache to struct object_id
  builtin/ls-tree: convert to struct object_id
  merge: convert checkout_fast_forward to struct object_id
  sequencer: convert fast_forward_to to struct object_id
  builtin/ls-files: convert overlay_tree_on_cache to object_id
  builtin/read-tree: convert to struct object_id
  sha1_name: convert internals of peel_onion to object_id
  upload-pack: convert remaining parse_object callers to object_id
  revision: convert remaining parse_object callers to object_id
  revision: rename add_pending_sha1 to add_pending_oid
  http-push: convert process_ls_object and descendants to object_id
  refs/files-backend: convert many internals to struct object_id
  refs: convert struct ref_update to use struct object_id
  ref-filter: convert some static functions to struct object_id
  Convert struct ref_array_item to struct object_id
  Convert the verify_pack callback to struct object_id
  Convert lookup_tag to struct object_id
  ...
2017-05-23 14:29:19 +09:00
Stefan Beller
7e95fcb4b5 t5531: fix test description
The description of the test was not enclosed in single quotes, which
broke the coloring scheme that I am used to.  Upon closer inspection
the test is good, but the description is a bit vague. So extend the
description of the first test.

While at it align the description of the file to match what we actually
test in the file.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-23 14:16:42 +09:00
Junio C Hamano
6a0bc7cf0e Merge branch 'ab/fix-poison-tests'
Update tests to pass under GETTEXT_POISON (a mechanism to ensure
that output strings that should not be translated are not
translated by mistake), and tell TravisCI to run them.

* ab/fix-poison-tests:
  travis-ci: add job to run tests with GETTEXT_POISON
  travis-ci: setup "prove cache" in "script" step
  tests: fix tests broken under GETTEXT_POISON=YesPlease
2017-05-23 13:46:09 +09:00
Junio C Hamano
d13686ff4d Merge branch 'tb/dedup-crlf-tests'
* tb/dedup-crlf-tests:
  t0027: tests are not expensive; remove t0025
2017-05-23 13:46:08 +09:00
Junio C Hamano
3c980083bc Merge branch 'jt/push-options-doc'
The receive-pack program now makes sure that the push certificate
records the same set of push options used for pushing.

* jt/push-options-doc:
  receive-pack: verify push options in cert
  docs: correct receive.advertisePushOptions default
2017-05-23 13:46:07 +09:00
Junio C Hamano
e4b6ccdbff Merge branch 'ab/doc-replace-gmane-links'
The Web interface to gmane news archive is long gone, even though
the articles are still accessible via NTTP.  Replace the links with
ones to public-inbox.org.  Because their message identification is
based on the actual message-id, it is likely that it will be easier
to migrate away from it if/when necessary.

* ab/doc-replace-gmane-links:
  doc: replace more gmane links
  doc: replace a couple of broken gmane links
2017-05-23 13:46:05 +09:00
Junio C Hamano
bf32fc5664 Merge branch 'ah/log-decorate-default-to-auto'
Setting "log.decorate=false" in the configuration file did not take
effect in v2.13, which has been corrected.

* ah/log-decorate-default-to-auto:
  builtin/log: honor log.decorate
2017-05-23 13:46:03 +09:00
Junio C Hamano
bea1579b80 Merge branch 'bw/submodule-with-bs-path'
A hotfix to a topic that is already in v2.13.

* bw/submodule-with-bs-path:
  t7400: add !CYGWIN prerequisite to 'add with \\ in path'
2017-05-23 13:46:02 +09:00
Samuel Lijin
fb89888849 dir: hide untracked contents of untracked dirs
When we taught read_directory_recursive() to recurse into untracked
directories in search of ignored files given DIR_SHOW_IGNORED_TOO, that
had the side effect of teaching it to collect the untracked contents of
untracked directories. It doesn't always make sense to return these,
though (we do need them for `clean -d`), so we introduce a flag
(DIR_KEEP_UNTRACKED_CONTENTS) to control whether or not read_directory()
strips dir->entries of the untracked contents of untracked dirs.

We also introduce check_contains() to check if one dir_entry corresponds
to a path which contains the path corresponding to another dir_entry.

This also fixes known breakages in t7061, since status --ignored now
searches untracked directories for ignored files.

Signed-off-by: Samuel Lijin <sxlijin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-22 12:14:09 +09:00
Samuel Lijin
0a81d4a559 t7061: status --ignored should search untracked dirs
Per eb8c5b87, `status --ignored` by design does not list ignored files
if they are in a directory which contains only ignored and untracked
files (which is itself considered to be untracked) without `-uall`. This
does not make sense for `--ignored`, which claims to "Show ignored files
as well."

Thus we revisit eb8c5b87 and decide that for such directories, `status
--ignored` will list the directory as untracked *and* list all ignored
files within said directory even without `-uall`.

Signed-off-by: Samuel Lijin <sxlijin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-22 12:06:52 +09:00
Samuel Lijin
b3487ccc0b t7300: clean -d should skip dirs with ignored files
If git sees a directory which contains only untracked and ignored
files, clean -d should not remove that directory. It was recently
discovered that this is *not* true of git clean -d, and it's possible
that this has never worked correctly; this test and its accompanying
patch series aims to fix that.

Signed-off-by: Samuel Lijin <sxlijin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-22 12:06:52 +09:00
Ævar Arnfjörð Bjarmason
b11ad029cb perf: emit progress output when unpacking & building
Amend the t/perf/run output so that in addition to the "Running N
tests" heading currently being emitted, it also emits "Unpacking $rev"
and "Building $rev" when setting up the build/$rev directory & when
building it, respectively.

This makes it easier to see what's going on and what revision is being
tested as the output scrolls by.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:38 +09:00
Ævar Arnfjörð Bjarmason
88b6197d0b perf: add a GIT_PERF_MAKE_COMMAND for when *_MAKE_OPTS won't do
Add a git GIT_PERF_MAKE_COMMAND variable to compliment the existing
GIT_PERF_MAKE_OPTS facility. This allows specifying an arbitrary shell
command to execute instead of 'make'.

This is useful e.g. in cases where the name, semantics or defaults of
a Makefile flag have changed over time. It can even be used to change
the contents of the tree, useful for monkeypatching ancient versions
of git to get them to build.

This opens Pandora's box in some ways, it's now possible to
"jailbreak" the perf environment and e.g. modify the source tree via
this arbitrary instead of just issuing a custom "make" command, such a
command has to be re-entrant in the sense that subsequent perf runs
will re-use the possibly modified tree.

It would be pointless to try to mitigate or work around that caveat in
a tool purely aimed at Git developers, so this change makes no attempt
to do so.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:38 +09:00
Ævar Arnfjörð Bjarmason
966be95549 grep: add tests to fix blind spots with \0 patterns
Address a big blind spot in the tests for patterns containing \0. The
is_fixed() function considers any string that contains \0 fixed, even
if it contains regular expression metacharacters, those patterns are
currently matched with kwset.

Before this change removing that memchr(s, 0, len) check from
is_fixed() wouldn't change the result of any of the tests, since
regcomp() will happily match the part before the \0.

The kwset path is dependent on whether the the -i flag is on, and
whether the pattern has any non-ASCII characters, but none of this was
tested for.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:38 +09:00
Ævar Arnfjörð Bjarmason
12fc32faa8 grep: prepare for testing binary regexes containing rx metacharacters
Add setup code needed for testing regexes that contain both binary
data and regex metacharacters.

The POSIX regcomp() function inherently can't support that, because it
takes a \0-delimited char *, but other regex engines APIs like PCRE v2
take a pattern/length pair, and are thus able to handle \0s in
patterns as well as any other character.

When kwset was imported in commit 9eceddeec6 ("Use kwset in grep",
2011-08-21) this limitation was fixed, but at the expense of
introducing the undocumented limitation that any pattern containing \0
implicitly becomes a fixed match (equivalent to -F having been
provided).

That's not something we'd like to keep in the future. The inability to
match patterns containing \0 is a leaky implementation detail.

So add tests as a first step towards changing that. In order to test
that \0-patterns can properly match as regexes the test string needs
to have some regex metacharacters in it.

There were other blind spots in the tests. The code around kwset
specially handles case-insensitive & non-ASCII data, but there were no
tests for this.

Fix all of that by amending the text being matched to contain both
regex metacharacters & non-ASCII data.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
77f6f4406f grep: add a test helper function for less verbose -f \0 tests
Add a helper function to make the tests which check for patterns with
\0 in them more succinct. Right now this isn't a big win, but
subsequent commits will add a lot more of these tests.

The helper is based on the match() function in t3070-wildmatch.sh.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
5ee6f1a21b grep: add tests for grep pattern types being passed to submodules
Add testing for grep pattern types being correctly passed to
submodules. The pattern "(.|.)[\d]" matches differently under
fixed (not at all), and then matches different lines under
basic/extended & perl regular expressions, so this change asserts that
the pattern type is passed along correctly.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
5d52a30eda grep: amend submodule recursion test for regex engine testing
Amend the submodule recursion test to prepare it for subsequent tests
of whether it passes along the grep.patternType to the submodule
greps.

This is the result of searching & replacing:

    foobar -> (1|2)d(3|4)
    foo    -> (1|2)
    bar    -> (3|4)

Currently there's no tests for whether e.g. -P or -E is correctly
passed along, tests for that will be added in a follow-up change, but
first add content to the tests which will match differently under
different regex engines.

Reuse the pattern established in an earlier commit of mine in this
series ("log: add exhaustive tests for pattern style options &
config", 2017-04-07). The pattern "(.|.)[\d]" will match this content
differently under fixed/basic/extended & perl.

This test code was originally added in commit 0281e487fd ("grep:
optionally recurse into submodules", 2016-12-16).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
c5813658f7 grep: add tests for --threads=N and grep.threads
Add tests for --threads=N being supplied on the command-line, or when
grep.threads=N being supplied in the configuration.

When the threading support was made run-time configurable in commit
89f09dd34e ("grep: add --threads=<num> option and grep.threads
configuration", 2015-12-15) no tests were added for it.

In developing a change to the grep code I was able to make
'--threads=1 <pat>` segfault, while the test suite still passed. This
change fixes that blind spot in the tests.

In addition to asserting that asking for N threads shouldn't segfault,
test that the grep output given any N is the same.

The choice to test only 1..10 as opposed to 1..8 or 1..16 or whatever
is arbitrary. Testing 1..1024 works locally for me (but gets
noticeably slower as more threads are spawned). Given the structure of
the code there's no reason to test an arbitrary number of threads,
only 0, 1 and >=2 are special modes of operation.

A later patch introduces a PTHREADS test prerequisite which is true
under NO_PTHREADS=UnfortunatelyYes, but even under NO_PTHREADS it's
fine to test --threads=N, we'll just ignore it and not use
threading. So these tests also make sense under that mode to assert
that --threads=N without pthreads still returns expected results.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
e01b4dab01 grep: change non-ASCII -i test to stop using --debug
Change a non-ASCII case-insensitive test case to stop using --debug,
and instead simply test for the expected results.

The test coverage remains the same with this change, but the test
won't break due to internal refactoring.

This test was added in commit 793dc676e0 ("grep/icase: avoid kwsset
when -F is specified", 2016-06-25). It was asserting that the regex
must be compiled with compile_fixed_regexp(), instead test for the
expected results, allowing the underlying implementation to change.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
4aeb720d3f grep: add a test for backreferences in PCRE patterns
Add a test for backreferences such as (.)\1 in PCRE patterns. This
test ensures that the PCRE_NO_AUTO_CAPTURE option isn't turned
on. Before this change turning it on would break these sort of
patterns, but wouldn't break any tests.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
9001c1920c grep: add a test asserting that --perl-regexp dies when !PCRE
Add a test asserting that when --perl-regexp (and -P for grep) is
given to git-grep & git-log that we die with an error.

In developing the PCRE v2 series I introduced a regression where -P
would (through control-flow fall-through) become synonymous with basic
POSIX matching. I.e. 'git grep -P '[\d]' would match "d" instead of
digits.

The entire test suite would still pass with this serious regression,
since everything that tested for --perl-regexp would be guarded by the
PCRE prerequisite, fix that blind-spot by adding tests under !PCRE
asserting that git must die when given --perl-regexp or -P.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
9e3cbc59d5 log: make --regexp-ignore-case work with --perl-regexp
Make the --regexp-ignore-case option work with --perl-regexp. This
never worked, and there was no test for this. Fix the bug and add a
test.

When PCRE support was added in commit 63e7e9d8b6 ("git-grep: Learn
PCRE", 2011-05-09) compile_pcre_regexp() would only check
opt->ignore_case, but when the --perl-regexp option was added in
commit 727b6fc3ed ("log --grep: accept --basic-regexp and
--perl-regexp", 2012-10-03) the code didn't set the opt->ignore_case.

Change the test suite to test for -i and --invert-regexp with
basic/extended/perl patterns in addition to fixed, which was the only
patternType that was tested for before in combination with those
options.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
9df46763ef log: add exhaustive tests for pattern style options & config
Add exhaustive tests for how the different grep.patternType options &
the corresponding command-line options affect git-log.

Before this change it was possible to patch revision.c so that the
--basic-regexp option was synonymous with --extended-regexp, and
--perl-regexp wasn't recognized at all, and still have 100% of the
test suite pass.

This was because the first test being modified here, added in commit
34a4ae55b2 ("log --grep: use the same helper to set -E/-F options as
"git grep"", 2012-10-03), didn't actually check whether we'd enabled
extended regular expressions as distinct from re-toggling non-fixed
string support.

Fix that by changing the pattern to a pattern that'll only match if
--extended-regexp option is provided, but won't match under the
default --basic-regexp option.

Other potential regressions were possible since there were no tests
for the rest of the combinations of grep.patternType configuration
toggles & corresponding git-log command-line options. Add exhaustive
tests for those.

The patterns being passed to fixed/basic/extended/PCRE are carefully
crafted to return the wrong thing if the grep engine were to pick any
other matching method than the one it's told to use.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Ævar Arnfjörð Bjarmason
3eb585c112 test-lib: rename the LIBPCRE prerequisite to PCRE
Rename the LIBPCRE prerequisite to PCRE. This is for preparation for
libpcre2 support, where having just "LIBPCRE" would be confusing as it
implies v1 of the library.

None of these tests are incompatible between versions 1 & 2 of
libpcre, it's less confusing to give them a more general name to make
it clear that they work on both library versions.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-21 08:25:37 +09:00
Jeff King
a3ba6bf10a revision.c: ignore broken tags with ignore_missing_links
When peeling a tag for prepare_revision_walk(), we do not
respect the ignore_missing_links flag. This can lead to a
bogus error when pack-objects walks the possibly-broken
unreachable-but-recent part of the object graph.

The other link-following all happens via traverse_commit_list(),
which explains why this case was missed. And our tests
covered only broken links from commits. Let's be more
comprehensive and cover broken tree entries (which do work)
and tags (which shows off this bug).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-20 18:32:58 +09:00
David Turner
edf3b90553 unpack-trees: preserve index extensions
Make git checkout (and other unpack_tree operations) preserve the
untracked cache. This is valuable for two reasons:

1. Often, an unpack_tree operation will not touch large parts of the
working tree, and thus most of the untracked cache will continue to be
valid.

2. Even if the untracked cache were entirely invalidated by such an
operation, the user has signaled their intention to have such a cache,
and we don't want to throw it away.

[jes: backed out the watchman-specific parts]

Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-20 18:26:45 +09:00
Brian Malehorn
d76650b8d1 interpret-trailers: honor the cut line
If a commit message is edited with the "verbose" option, the buffer
will have a cut line and diff after the log message, like so:

    my subject

    # ------------------------ >8 ------------------------
    # Do not touch the line above.
    # Everything below will be removed.
    diff --git a/foo.txt b/foo.txt
    index 5716ca5..7601807 100644
    --- a/foo.txt
    +++ b/foo.txt
    @@ -1 +1 @@
    -bar
    +baz

"git interpret-trailers" is unaware of the cut line, and assumes the
trailer block would be at the end of the whole thing.  This can easily
be seen with:

     $ GIT_EDITOR='git interpret-trailers --in-place --trailer Acked-by:me' \
       git commit --amend -v

Teach "git interpret-trailers" to notice the cut-line and ignore the
remainder of the input when looking for a place to add new trailer
block.  This makes it consistent with how "git commit -v -s" inserts a
new Signed-off-by: line.

This can be done by the same logic as the existing helper function,
wt_status_truncate_message_at_cut_line(), uses, but it wants the caller
to pass a strbuf to it.  Because the function ignore_non_trailer() used
by the command takes a <pointer, length> pair, not a strbuf, steal the
logic from wt_status_truncate_message_at_cut_line() to create a new
wt_status_locate_end() helper function that takes <pointer, length>
pair, and make ignore_non_trailer() call it to help "interpret-trailers".

Since there is only one caller of wt_status_truncate_message_at_cut_line()
in cmd_commit(), rewrite it to call wt_status_locate_end() helper instead
and remove the old helper that no longer has any caller.

Signed-off-by: Brian Malehorn <bmalehorn@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-18 15:00:48 +09:00
Jeff King
71406ed4d6 t5400: avoid concurrent writes into a trace file
One test in t5400 examines the packet exchange between git-push and
git-receive-pack. The latter inherits the GIT_TRACE_PACKET environment
variable, so that both processes dump trace data into the same file
concurrently. This should not be a problem because the trace file is
opened with O_APPEND.

On Windows, however, O_APPEND is not atomic as it should be: it is
emulated as lseek(SEEK_END) followed by write(). For this reason, the
test is unreliable: it can happen that one process overwrites a line
that was just written by the other process. As a consequence, the test
sometimes does not find one or another line that is expected (and it is
also successful occasionally).

The test case is actually only interested in the output of git-push.
To ensure that only git-push writes to the trace file, override the
receive-pack command such that it does not even open the trace file.

Reported-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-18 14:09:23 +09:00
Stefan Beller
2e397e4ddf t5545: enhance test coverage when no http server is installed
In commit 438fc68462 ("push options: pass push options to the transport
helper", 08-02-2017), the test coverage was reduced to run no tests at all
if you lack a http server.  Move the http initialization to the end,
such that only http tests are skipped when a http server is missing.

The test in between that tests submodule propagation is safe to run before
the http tests as it makes its own test directories `parent` and
`parent_upstream`.

Noticed-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-18 11:53:35 +09:00
Junio C Hamano
c7018be509 test: allow skipping the remainder
Because TAP output does not like to see the remainder of the test
getting skipped after running one or more tests, bf4b7219
("test-lib.sh: Add check for invalid use of 'skip_all' facility",
2012-09-01) made sure that test_done errors out when this happens.

Instead, loosen the check so that we only pretend that the rest of
the test script did not exist in such a case.  We'd lose a bit of
information (i.e. TAP does not notice that we are skipping some
tests), but not very much (i.e. TAP wasn't told how many tests are
skipped anyway).

This will allow inclusion of lib-httpd.sh in the middle of a test,
which will skip the remainder of the test scripts when tests that
involve web server are declined with GIT_TEST_HTTPD=false, for
example.

Acked-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-18 11:53:22 +09:00
Ævar Arnfjörð Bjarmason
0624c63ce6 config: match both symlink & realpath versions in IncludeIf.gitdir:*
Change the conditional inclusion mechanism to support
e.g. gitdir:~/git_tree/repo where ~/git_tree is a symlink to
/mnt/stuff/repo.

This worked in the initial version of this facility[1], but regressed
later in the series while solving a related bug[2].

Now gitdir: will match against the symlinked
path (e.g. gitdir:~/git_tree/repo) in addition to the current
/mnt/stuff/repo path.

Since this is already in a release version note in the documentation
that this behavior changed, so users who expect their configuration to
work on both v2.13.0 and some future version of git with this fix
aren't utterly confused.

1. commit 3efd0bedc6 ("config: add conditional include", 2017-03-01)
2. commit 86f9515708 ("config: resolve symlinks in conditional
   include's patterns", 2017-04-05)

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-17 10:32:26 +09:00
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