Commit Graph

16641 Commits

Author SHA1 Message Date
Junio C Hamano
64efa11e6b Merge branch 'en/do-match-pathspec-fix'
Use of negative pathspec, while collecting paths including
untracked ones in the working tree, was broken.

* en/do-match-pathspec-fix:
  dir: fix treatment of negated pathspecs
2020-06-17 21:54:03 -07:00
Junio C Hamano
a554228ffb Merge branch 'en/sparse-checkout'
The behaviour of "sparse-checkout" in the state "git clone
--no-checkout" left was changed accidentally in 2.27, which has
been corrected.

* en/sparse-checkout:
  sparse-checkout: avoid staging deletions of all files
2020-06-17 21:54:02 -07:00
Junio C Hamano
524caf8035 Merge branch 'js/reflog-anonymize-for-clone-and-fetch'
The reflog entries for "git clone" and "git fetch" did not
anonymize the URL they operated on.

* js/reflog-anonymize-for-clone-and-fetch:
  clone/fetch: anonymize URLs in the reflog
2020-06-17 21:54:01 -07:00
Junio C Hamano
abacefe865 Merge branch 'tb/t5318-cleanup'
Code cleanup.

* tb/t5318-cleanup:
  t5318: test that '--stdin-commits' respects '--[no-]progress'
  t5318: use 'test_must_be_empty'
2020-06-17 21:54:01 -07:00
Junio C Hamano
eebb51ba8c Merge branch 'hn/refs-cleanup'
Preliminary clean-ups around refs API, plus file format
specification documentation for the reftable backend.

* hn/refs-cleanup:
  reftable: define version 2 of the spec to accomodate SHA256
  reftable: clarify how empty tables should be written
  reftable: file format documentation
  refs: improve documentation for ref iterator
  t: use update-ref and show-ref to reading/writing refs
  refs.h: clarify reflog iteration order
2020-06-12 13:57:13 -07:00
Junio C Hamano
0b925a469e Merge branch 'jt/curl-verbose-on-trace-curl'
Rewrite support for GIT_CURL_VERBOSE in terms of GIT_TRACE_CURL.

Looking good.

* jt/curl-verbose-on-trace-curl:
  http, imap-send: stop using CURLOPT_VERBOSE
  t5551: test that GIT_TRACE_CURL redacts password
2020-06-08 18:06:32 -07:00
Junio C Hamano
63e50b8678 Merge branch 'cb/bisect-helper-parser-fix'
The code to parse "git bisect start" command line was lax in
validating the arguments.

* cb/bisect-helper-parser-fix:
  bisect--helper: avoid segfault with bad syntax in `start --term-*`
2020-06-08 18:06:32 -07:00
Junio C Hamano
2bdf00e66a Merge branch 'js/checkout-p-new-file'
"git checkout -p" did not handle a newly added path at all.

* js/checkout-p-new-file:
  checkout -p: handle new files correctly
2020-06-08 18:06:31 -07:00
Junio C Hamano
b37fd14beb Merge branch 'dl/remote-curl-deadlock-fix'
On-the-wire protocol v2 easily falls into a deadlock between the
remote-curl helper and the fetch-pack process when the server side
prematurely throws an error and disconnects.  The communication has
been updated to make it more robust.

* dl/remote-curl-deadlock-fix:
  stateless-connect: send response end packet
  pkt-line: define PACKET_READ_RESPONSE_END
  remote-curl: error on incomplete packet
  pkt-line: extern packet_length()
  transport: extract common fetch_pack() call
  remote-curl: remove label indentation
  remote-curl: fix typo
2020-06-08 18:06:30 -07:00
Junio C Hamano
ded44afa02 Merge branch 'bc/filter-process'
Code simplification and test coverage enhancement.

* bc/filter-process:
  t2060: add a test for switch with --orphan and --discard-changes
  builtin/checkout: simplify metadata initialization
2020-06-08 18:06:30 -07:00
Junio C Hamano
7e75aeb290 Merge branch 'rs/fsck-duplicate-names-in-trees'
The check in "git fsck" to ensure that the tree objects are sorted
still had corner cases it missed unsorted entries.

* rs/fsck-duplicate-names-in-trees:
  fsck: detect more in-tree d/f conflicts
  t1450: demonstrate undetected in-tree d/f conflict
  t1450: increase test coverage of in-tree d/f detection
  fsck: fix a typo in a comment
2020-06-08 18:06:29 -07:00
Junio C Hamano
dc57a9be5e Merge branch 'tb/commit-graph-no-check-oids'
Clean-up the commit-graph codepath.

* tb/commit-graph-no-check-oids:
  commit-graph: drop COMMIT_GRAPH_WRITE_CHECK_OIDS flag
  t5318: reorder test below 'graph_read_expect'
  commit-graph.c: simplify 'fill_oids_from_commits'
  builtin/commit-graph.c: dereference tags in builtin
  builtin/commit-graph.c: extract 'read_one_commit()'
  commit-graph.c: peel refs in 'add_ref_to_set'
  commit-graph.c: show progress of finding reachable commits
  commit-graph.c: extract 'refs_cb_data'
2020-06-08 18:06:27 -07:00
Junio C Hamano
f4cec40dbd Merge branch 'cb/t4210-illseq-auto-detect'
As FreeBSD is not the only platform whose regexp library reports
a REG_ILLSEQ error when fed invalid UTF-8, add logic to detect that
automatically and skip the affected tests.

* cb/t4210-illseq-auto-detect:
  t4210: detect REG_ILLSEQ dynamically and skip affected tests
  t/helper: teach test-regex to report pattern errors (like REG_ILLSEQ)
2020-06-08 18:06:27 -07:00
Junio C Hamano
c3a02824cf Merge branch 'ds/line-log-on-bloom'
"git log -L..." now takes advantage of the "which paths are touched
by this commit?" info stored in the commit-graph system.

* ds/line-log-on-bloom:
  line-log: integrate with changed-path Bloom filters
  line-log: try to use generation number-based topo-ordering
  line-log: more responsive, incremental 'git log -L'
  t4211-line-log: add tests for parent oids
  line-log: remove unused fields from 'struct line_log_data'
2020-06-08 18:06:26 -07:00
Elijah Newren
f1f061e11d dir: fix treatment of negated pathspecs
do_match_pathspec() started life as match_pathspec_depth_1() and for
correctness was only supposed to be called from match_pathspec_depth().
match_pathspec_depth() was later renamed to match_pathspec(), so the
invariant we expect today is that do_match_pathspec() has no direct
callers outside of match_pathspec().

Unfortunately, this intention was lost with the renames of the two
functions, and additional calls to do_match_pathspec() were added in
commits 75a6315f74 ("ls-files: add pathspec matching for submodules",
2016-10-07) and 89a1f4aaf7 ("dir: if our pathspec might match files
under a dir, recurse into it", 2019-09-17).  Of course,
do_match_pathspec() had an important advantge over match_pathspec() --
match_pathspec() would hardcode flags to one of two values, and these
new callers needed to pass some other value for flags.  Also, although
calling do_match_pathspec() directly was incorrect, there likely wasn't
any difference in the observable end output, because the bug just meant
that fill_diretory() would recurse into unneeded directories.  Since
subsequent does-this-path-match checks on individual paths under the
directory would cause those extra paths to be filtered out, the only
difference from using the wrong function was unnecessary computation.

The second of those bad calls to do_match_pathspec() was involved -- via
either direct movement or via copying+editing -- into a number of later
refactors.  See commits 777b420347 ("dir: synchronize
treat_leading_path() and read_directory_recursive()", 2019-12-19),
8d92fb2927 ("dir: replace exponential algorithm with a linear one",
2020-04-01), and 95c11ecc73 ("Fix error-prone fill_directory() API; make
it only return matches", 2020-04-01).  The last of those introduced the
usage of do_match_pathspec() on an individual file, and thus resulted in
individual paths being returned that shouldn't be.

The problem with calling do_match_pathspec() instead of match_pathspec()
is that any negated patterns such as ':!unwanted_path` will be ignored.
Add a new match_pathspec_with_flags() function to fulfill the needs of
specifying special flags while still correctly checking negated
patterns, add a big comment above do_match_pathspec() to prevent others
from misusing it, and correct current callers of do_match_pathspec() to
instead use either match_pathspec() or match_pathspec_with_flags().

One final note is that DO_MATCH_LEADING_PATHSPEC needs special
consideration when working with DO_MATCH_EXCLUDE.  The point of
DO_MATCH_LEADING_PATHSPEC is that if we have a pathspec like
   */Makefile
and we are checking a directory path like
   src/module/component
that we want to consider it a match so that we recurse into the
directory because it _might_ have a file named Makefile somewhere below.
However, when we are using an exclusion pattern, i.e. we have a pathspec
like
   :(exclude)*/Makefile
we do NOT want to say that a directory path like
   src/module/component
is a (negative) match.  While there *might* be a file named 'Makefile'
somewhere below that directory, there could also be other files and we
cannot pre-emptively rule all the files under that directory out; we
need to recurse and then check individual files.  Adjust the
DO_MATCH_LEADING_PATHSPEC logic to only get activated for positive
pathspecs.

Reported-by: John Millikin <jmillikin@stripe.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-05 15:02:16 -07:00
Elijah Newren
b5bfc08a97 sparse-checkout: avoid staging deletions of all files
sparse-checkout's purpose is to update the working tree to have it
reflect a subset of the tracked files.  As such, it shouldn't be
switching branches, making commits, downloading or uploading data, or
staging or unstaging changes.  Other than updating the worktree, the
only thing sparse-checkout should touch is the SKIP_WORKTREE bit of the
index.  In particular, this sets up a nice invariant: running
sparse-checkout will never change the status of any file in `git status`
(reflecting the fact that we only set the SKIP_WORKTREE bit if the file
is safe to delete, i.e. if the file is unmodified).

Traditionally, we did a _really_ bad job with this goal.  The
predecessor to sparse-checkout involved manual editing of
.git/info/sparse-checkout and running `git read-tree -mu HEAD`.  That
command would stage and unstage changes and overwrite dirty changes in
the working tree.

The initial implementation of the sparse-checkout command was no better;
it simply invoked `git read-tree -mu HEAD` as a subprocess and had the
same caveats, though this issue came up repeatedly in review comments
and workarounds for the problems were put in place before the feature
was merged[1, 2, 3, 4, 5, 6; especially see 4 & 6].

[1] https://lore.kernel.org/git/CABPp-BFT9A5n=_bx5LsjCvbogqwSjiwgr5amcjgbU1iAk4KLJg@mail.gmail.com/
[2] https://lore.kernel.org/git/CABPp-BEmwSwg4tgJg6nVG8a3Hpn_g-=ZjApZF4EiJO+qVgu4uw@mail.gmail.com/
[3] https://lore.kernel.org/git/CABPp-BFV7TA0qwZCQpHCqx9N+JifyRyuBQ-pZ_oGfe-NOgyh7A@mail.gmail.com/
[4] https://lore.kernel.org/git/CABPp-BHYCCD+Vx5fq35jH82eHc1-P53Lz_aGNpHJNcx9kg2K-A@mail.gmail.com/
[5] https://lore.kernel.org/git/CABPp-BF+JWYZfDqp2Tn4AEKVp4b0YMA=Mbz4Nz62D-gGgiduYQ@mail.gmail.com/
[6] https://lore.kernel.org/git/20191121163706.GV23183@szeder.dev/

However, these workarounds, in addition to disabling the feature in a
number of important cases, also missed one special case.  I'll get back
to it later.

In the 2.27.0 cycle, the disabling of the feature was lifted by finally
replacing the internal equivalent of `git read-tree -mu HEAD` with
something that did what we wanted: the new update_sparsity() function in
unpack-trees.c that only ever updates SKIP_WORKTREE bits in the index
and updates the working tree to match.  This new function handles all
the cases that were problematic for the old implementation, except that
it breaks the same special case that avoided the workarounds of the old
implementation, but broke it in a different way.

So...that brings us to the special case: a git clone performed with
--no-checkout.  As per the meaning of the flag, --no-checkout does not
check out any branch, with the implication that you aren't on one and
need to switch to one after the clone.  Implementationally, HEAD is
still set (so in some sense you are partially on a branch), but
  * the index is "unborn" (non-existent)
  * there are no files in the working tree (other than .git/)
  * the next time git switch (or git checkout) is run it will run
    unpack_trees with `initial_checkout` flag set to true.
It is not until you run, e.g. `git switch <somebranch>` that the index
will be written and files in the working tree populated.

With this special --no-checkout case, the traditional `read-tree -mu
HEAD` behavior would have done the equivalent of acting like checkout --
switch to the default branch (HEAD), write out an index that matches
HEAD, and update the working tree to match.  This special case slipped
through the avoid-making-changes checks in the original sparse-checkout
command and thus continued there.

After update_sparsity() was introduced and used (see commit f56f31af03
("sparse-checkout: use new update_sparsity() function", 2020-03-27)),
the behavior for the --no-checkout case changed:  Due to git's
auto-vivification of an empty in-memory index (see do_read_index() and
note that `must_exist` is false), and due to sparse-checkout's
update_working_directory() code to always write out the index after it
was done, we got a new bug.  That made it so that sparse-checkout would
switch the repository from a clone with an "unborn" index (i.e. still
needing an initial_checkout), to one that had a recorded index with no
entries.  Thus, instead of all the files appearing deleted in `git
status` being known to git as a special artifact of not yet being on a
branch, our recording of an empty index made it suddenly look to git as
though it was definitely on a branch with ALL files staged for deletion!
A subsequent checkout or switch then had to contend with the fact that
it wasn't on an initial_checkout but had a bunch of staged deletions.

Make sure that sparse-checkout changes nothing in the index other than
the SKIP_WORKTREE bit; in particular, when the index is unborn we do not
have any branch checked out so there is no sparsification or
de-sparsification work to do.  Simply return from
update_working_directory() early.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-05 08:05:50 -07:00
Johannes Schindelin
46da295a77 clone/fetch: anonymize URLs in the reflog
Even if we strongly discourage putting credentials into the URLs passed
via the command-line, there _is_ support for that, and users _do_ do
that.

Let's scrub them before writing them to the reflog.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-04 13:20:21 -07:00
Taylor Blau
94fbd9149a t5318: test that '--stdin-commits' respects '--[no-]progress'
The following lines were not covered in a recent line-coverage test
against Git:

  builtin/commit-graph.c
  5b6653e5 244) progress = start_delayed_progress(
  5b6653e5 268) stop_progress(&progress);

These statements are executed when both '--stdin-commits' and
'--progress' are passed. Introduce a trio of tests that exercise various
combinations of these options to ensure that these lines are covered.

More importantly, this is exercising a (somewhat) previously-ignored
feature of '--stdin-commits', which is that it respects '--progress'.
Prior to 5b6653e523 (builtin/commit-graph.c: dereference tags in
builtin, 2020-05-13), dereferencing input from '--stdin-commits' was
done inside of commit-graph.c.

Now that an additional progress meter may be generated from outside of
commit-graph.c, add a corresponding test to make sure that it also
respects '--[no]-progress'.

The other location that generates progress meter output (from d335ce8f24
(commit-graph.c: show progress of finding reachable commits,
2020-05-13)) is already covered by any test that passes '--reachable'.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-04 07:54:08 -07:00
Taylor Blau
6334c5ff97 t5318: use 'test_must_be_empty'
A handful of tests in t5318 use 'test_line_count = 0 ...' to make sure
that some command does not write any output. While correct, it is more
idiomatic to use 'test_must_be_empty' instead. Switch the former
invocations to use the latter instead.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-06-04 07:52:54 -07:00
Junio C Hamano
54041832d7 Merge branch 'en/fast-import-looser-date'
Some repositories in the wild have commits that record nonsense
committer timezone (e.g. rails.git); "git fast-import" learned an
option to pass these nonsense timestamps intact to allow recreating
existing repositories as-is.

* en/fast-import-looser-date:
  fast-import: add new --date-format=raw-permissive format
2020-06-02 13:35:05 -07:00
Junio C Hamano
e34df9a6e5 Merge branch 'la/diff-relative-config'
The commands in the "diff" family learned to honor "diff.relative"
configuration variable.

* la/diff-relative-config:
  diff: add config option relative
2020-06-02 13:35:04 -07:00
Junio C Hamano
de82fb45db Merge branch 'rs/checkout-b-track-error'
The error message from "git checkout -b foo -t bar baz" was
confusing.

* rs/checkout-b-track-error:
  checkout: improve error messages for -b with extra argument
  checkout: add tests for -b and --track
2020-06-02 13:35:04 -07:00
Junio C Hamano
1ab0dfde2c Merge branch 'cb/t5608-cleanup'
Test fixup.

* cb/t5608-cleanup:
  t5608: avoid say() and use "skip_all" instead for consistency
2020-06-02 13:35:03 -07:00
Junio C Hamano
56219baf1e Merge branch 'cb/test-use-ere-for-alternation'
Portability fix for tests added recently.

* cb/test-use-ere-for-alternation:
  t: avoid alternation (not POSIX) in grep's BRE
2020-05-31 11:38:44 -07:00
Elijah Newren
d42a2fb72f fast-import: add new --date-format=raw-permissive format
There are multiple repositories in the wild with random, invalid
timezones.  Most notably is a commit from rails.git with a timezone of
"+051800"[1].  A few searches will find other repos with that same
invalid timezone as well.  Further, Peff reports that GitHub relaxed
their fsck checks in August 2011 to accept any timezone value[2], and
there have been multiple reports to filter-repo about fast-import
crashing while trying to import their existing repositories since they
had timezone values such as "-7349423" and "-43455309"[3].

The existing check on timezone values inside fast-import may prove
useful for people who are crafting fast-import input by hand or with a
new script.  For them, the check may help them avoid accidentally
recording invalid dates.  (Note that this check is rather simplistic and
there are still several forms of invalid dates that fast-import does not
check for: dates in the future, timezone values with minutes that are
not divisible by 15, and timezone values with minutes that are 60 or
greater.)  While this simple check may have some value for those users,
other users or tools will want to import existing repositories as-is.
Provide a --date-format=raw-permissive format that will not error out on
these otherwise invalid timezones so that such existing repositories can
be imported.

[1] 4cf94979c9
[2] https://lore.kernel.org/git/20200521195513.GA1542632@coredump.intra.peff.net/
[3] https://github.com/newren/git-filter-repo/issues/88

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-31 09:03:10 -07:00
Carlo Marcelo Arenas Belón
46022ca34f t: avoid alternation (not POSIX) in grep's BRE
f1e3df3169 (t: increase test coverage of signature verification output,
2020-03-04) adds GPG dependent tests to t4202 and t6200 that were found
problematic with at least OpenBSD 6.7.

Using an escaped '|' for alternations works only in some implementations
of grep (e.g. GNU and busybox).

It is not part of POSIX[1] and not supported by some BSD, macOS, and
possibly other POSIX compatible implementations.

Use `grep -E`, and write it using extended regular expression.

[1] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_03

Helped-by: Torsten Bögershausen <tboegi@web.de>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-29 15:04:03 -07:00
Johannes Schindelin
2c8bd8471a checkout -p: handle new files correctly
The original patch selection code was written for `git add -p`, and the
fundamental unit on which it works is a hunk.

We hacked around that to handle deletions back in 24ab81ae4d
(add-interactive: handle deletion of empty files, 2009-10-27). But `git
add -p` would never see a new file, since we only consider the set of
tracked files in the index.

However, since the same machinery was used for `git checkout -p` &
friends, we can see new files.

Handle this case specifically, adding a new prompt for it that is
modeled after the `deleted file` case.

This also fixes the problem where added _empty_ files could not be
staged via `git checkout -p`.

Reported-by: Merlin Büge <toni@bluenox07.de>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-27 14:50:20 -07:00
Junio C Hamano
ea7aa4f612 Merge branch 'dd/t5703-grep-a-fix'
Update an unconditional use of "grep -a" with a perl script in a test.

* dd/t5703-grep-a-fix:
  t5703: replace "grep -a" usage by perl
2020-05-24 19:39:40 -07:00
Junio C Hamano
f37d959878 Merge branch 'gs/commit-graph-path-filter'
Test fix.

* gs/commit-graph-path-filter:
  t4216: avoid unnecessary subshell in test_bloom_filters_not_used
2020-05-24 19:39:38 -07:00
Junio C Hamano
4cf237c0d4 Merge branch 'dl/merge-autostash'
Test fix.

* dl/merge-autostash:
  t5520: avoid alternation in grep's BRE (not POSIX)
2020-05-24 19:39:37 -07:00
Junio C Hamano
09dcde9ddd Merge branch 'jt/avoid-prefetch-when-able-in-diff'
Test-coverage enhancement.

* jt/avoid-prefetch-when-able-in-diff:
  t4067: make rename detection test output raw diff
2020-05-24 19:39:36 -07:00
Junio C Hamano
df0a5e4eac Merge branch 'gp/hppa-stack-test-fix'
Platform dependent tweak to a test for HP-PA.

* gp/hppa-stack-test-fix:
  tests: skip small-stack tests on hppa architecture
2020-05-24 19:39:35 -07:00
Denton Liu
b0df0c16ea stateless-connect: send response end packet
Currently, remote-curl acts as a proxy and blindly forwards packets
between an HTTP server and fetch-pack. In the case of a stateless RPC
connection where the connection is terminated before the transaction is
complete, remote-curl will blindly forward the packets before waiting on
more input from fetch-pack. Meanwhile, fetch-pack will read the
transaction and continue reading, expecting more input to continue the
transaction. This results in a deadlock between the two processes.

This can be seen in the following command which does not terminate:

	$ git -c protocol.version=2 clone https://github.com/git/git.git --shallow-since=20151012
	Cloning into 'git'...

whereas the v1 version does terminate as expected:

	$ git -c protocol.version=1 clone https://github.com/git/git.git --shallow-since=20151012
	Cloning into 'git'...
	fatal: the remote end hung up unexpectedly

Instead of blindly forwarding packets, make remote-curl insert a
response end packet after proxying the responses from the remote server
when using stateless_connect(). On the RPC client side, ensure that each
response ends as described.

A separate control packet is chosen because we need to be able to
differentiate between what the remote server sends and remote-curl's
control packets. By ensuring in the remote-curl code that a server
cannot send response end packets, we prevent a malicious server from
being able to perform a denial of service attack in which they spoof a
response end packet and cause the described deadlock to happen.

Reported-by: Force Charlie <charlieio@outlook.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:26:00 -07:00
Denton Liu
0181b600a6 pkt-line: define PACKET_READ_RESPONSE_END
In a future commit, we will use PACKET_READ_RESPONSE_END to separate
messages proxied by remote-curl. To prepare for this, add the
PACKET_READ_RESPONSE_END enum value.

In switch statements that need a case added, die() or BUG() when a
PACKET_READ_RESPONSE_END is unexpected. Otherwise, mirror how
PACKET_READ_DELIM is implemented (especially in cases where packets are
being forwarded).

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:26:00 -07:00
Denton Liu
74b082ad34 remote-curl: error on incomplete packet
Currently, remote-curl acts as a proxy and blindly forwards packets
between an HTTP server and fetch-pack. In the case of a stateless RPC
connection where the connection is terminated with a partially written
packet, remote-curl will blindly send the partially written packet
before waiting on more input from fetch-pack. Meanwhile, fetch-pack will
read the partial packet and continue reading, expecting more input. This
results in a deadlock between the two processes.

For a stateless connection, inspect packets before sending them and
error out if a packet line packet is incomplete.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:26:00 -07:00
Laurent Arnoud
c28ded83fc diff: add config option relative
The `diff.relative` boolean option set to `true` shows only changes in
the current directory/value specified by the `path` argument of the
`relative` option and shows pathnames relative to the aforementioned
directory.

Teach `--no-relative` to override earlier `--relative`

Add for git-format-patch(1) options documentation `--relative` and
`--no-relative`

Signed-off-by: Laurent Arnoud <laurent@spkdev.net>
Acked-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:23:59 -07:00
Carlo Marcelo Arenas Belón
d63ae31962 t5608: avoid say() and use "skip_all" instead for consistency
Printing a message directly to stdout could affect TAP processing
and is not really needed, as there is a standard way to skip all
tests that could be used instead, while printing an equivalent
message.

While at it; update the message to better reflect that since
a85efb5985 (t5608-clone-2gb.sh: turn GIT_TEST_CLONE_2GB into a bool,
2019-11-22), the enabling variable should be a recognized boolean
(ex: true, false, 1, 0) and get rid of the prerequisite that used
to guard all the tests, since "skip_all" is just much faster and
idempotent.

Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:22:19 -07:00
René Scharfe
bb2198fb91 checkout: improve error messages for -b with extra argument
When we try to create a branch "foo" based on "origin/master" and give
git commit -b an extra unsupported argument "bar", it confusingly
reports:

   $ git checkout -b foo origin/master bar
   fatal: 'bar' is not a commit and a branch 'foo' cannot be created from it

   $ git checkout --track -b foo origin/master bar
   fatal: 'bar' is not a commit and a branch 'foo' cannot be created from it

That's wrong, because it very well understands that "origin/master" is
supposed to be the start point for the new branch and not "bar".  Check
if we got a commit and show more fitting messages in that case instead:

   $ git checkout -b foo origin/master bar
   fatal: Cannot update paths and switch to branch 'foo' at the same time.

   $ git checkout --track -b foo origin/master bar
   fatal: '--track' cannot be used with updating paths

Original-patch-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:21:30 -07:00
René Scharfe
16ab794b82 checkout: add tests for -b and --track
Test git checkout -b with and without --track and demonstrate unexpected
error messages when it's given an extra (i.e. unsupported) path
argument.  In both cases it reports:

   $ git checkout -b foo origin/master bar
   fatal: 'bar' is not a commit and a branch 'foo' cannot be created from it

The problem is that the start point we gave for the new branch is
"origin/master" and "bar" is just some extra argument -- it could even
be a valid commit, which would make the message even more confusing.  We
have more fitting error messages in git commit, but get confused; use
the text of the rights ones in the tests.

Reported-by: Dana Dahlstrom <dahlstrom@google.com>
Original-test-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:19:41 -07:00
Carlo Marcelo Arenas Belón
4d9005ff5d bisect--helper: avoid segfault with bad syntax in start --term-*
06f5608c14 (bisect--helper: `bisect_start` shell function partially in C,
2019-01-02) adds a lax parser for `git bisect start` which could result
in a segfault under a bad syntax call for start with custom terms.

Detect if there are enough arguments left in the command line to use for
--term-{old,good,new,bad} and abort with the same syntax error the original
implementation will show if not.

While at it, remove an unnecessary (and incomplete) check for unknown
arguments and make sure to add a test to avoid regressions.

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Acked-by: Christian Couder <christian.couder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 09:00:11 -07:00
René Scharfe
fe747043dc fsck: detect more in-tree d/f conflicts
If the conflict candidate file name from the top of the stack is not a
prefix of the current candiate directory then we can discard it as no
matching directory can come up later.  But we are not done checking the
candidate directory -- the stack might still hold a matching file name,
so stay in the loop and check the next candidate file name.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-21 11:03:13 -07:00
René Scharfe
3d71b1cf60 t1450: demonstrate undetected in-tree d/f conflict
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-21 11:03:13 -07:00
René Scharfe
fc12aa7bfd t1450: increase test coverage of in-tree d/f detection
Exercise the case of putting a conflict candidate file name back on the
stack because a matching directory might yet come up later.

Do that by factoring out the test code into a function to allow for more
concise notation in the form of parameters indicating names of trees
(with trailing slash) and blobs (without trailing slash) in no
particular order (they are sorted by git mktree).  Then add the new test
case as a second function call.

Fix a typo in the test title while at it ("dublicate").

Reported-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-21 11:03:10 -07:00
brian m. carlson
8d3e33dadd t2060: add a test for switch with --orphan and --discard-changes
We have several code paths in the checkout code which are traversed only
in this case, due to switch having different defaults from checkout.
Let's add a test that the combination of options works and produces the
expected behavior.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-21 09:55:23 -07:00
Han-Wen Nienhuys
cdb73ca56f t: use update-ref and show-ref to reading/writing refs
Reading and writing .git/refs/* assumes that refs are stored in the 'files'
ref backend.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-20 10:39:01 -07:00
Carlo Marcelo Arenas Belón
c703309024 t5520: avoid alternation in grep's BRE (not POSIX)
Instead of using a BRE, that broke tests 30-32, 37-39, 42 at least with
OpenBSD 6.7; use a simpler ERE.

Fixes: d9f15d37f1 (pull: pass --autostash to merge, 2020-04-07)
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-20 08:57:07 -07:00
Carlo Marcelo Arenas Belón
784ce03d55 t4216: avoid unnecessary subshell in test_bloom_filters_not_used
Seems to trigger a bug in at least OpenBSD's 6.7 sh where it is
interpreted as a history lookup and therefore fails 125-126, 128,
130.

Remove the subshell and get a space between ! and grep, so tests
pass successfully.

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-20 08:56:12 -07:00
Junio C Hamano
972ce8561d Merge branch 'jc/fix-tap-output-under-bash'
A recent attempt to make the test output nicer to view on CI
systems broke TAP output under bash.  The effort has been reverted
to be re-attempted in the next cycle.

* jc/fix-tap-output-under-bash:
  Revert "tests: when run in Bash, annotate test failures with file name/line number"
  Revert "ci: add a problem matcher for GitHub Actions"
  Revert "t/test_lib: avoid naked bash arrays in file_lineno"
2020-05-20 08:33:29 -07:00
Junio C Hamano
abbd1d9ebf Merge branch 'en/merge-rename-rename-worktree-fix'
When a binary file gets modified and renamed on both sides of history
to different locations, both files would be written to the working
tree but both would have the contents from "ours".  This has been
corrected so that the path from each side gets their original content.

* en/merge-rename-rename-worktree-fix:
  merge-recursive: fix rename/rename(1to2) for working tree with a binary
2020-05-20 08:33:27 -07:00
Junio C Hamano
74c6cba6d8 Merge branch 'dd/t1509-i18n-fix'
A few tests were not i18n clean.

* dd/t1509-i18n-fix:
  t1509: correct i18n test
2020-05-20 08:33:26 -07:00