Commit Graph

52154 Commits

Author SHA1 Message Date
Junio C Hamano
d349e188ab Merge branch 'pw/rebase-i-keep-reword-after-conflict'
Bugfix for "rebase -i" corner case regression.

* pw/rebase-i-keep-reword-after-conflict:
  sequencer: do not squash 'reword' commits when we hit conflicts
2018-07-18 12:20:29 -07:00
Junio C Hamano
6dcd36473a Merge branch 'ld/p423'
Code preparation to make "git p4" closer to be usable with Python 3.

* ld/p423:
  git-p4: python3: fix octal constants
  git-p4: python3: use print() function
  git-p4: python3: basestring workaround
  git-p4: python3: remove backticks
  git-p4: python3: replace dict.has_key(k) with "k in dict"
  git-p4: python3: replace <> with !=
2018-07-18 12:20:29 -07:00
Junio C Hamano
5d459c0cec Merge branch 'ds/ewah-cleanup'
Remove unused function definitions and declarations from ewah
bitmap subsystem.

* ds/ewah-cleanup:
  ewah: delete unused 'rlwit_discharge_empty()'
  ewah: drop ewah_serialize_native function
  ewah: drop ewah_deserialize function
  ewah_io: delete unused 'ewah_serialize()'
  ewah_bitmap: delete unused 'ewah_or()'
  ewah_bitmap: delete unused 'ewah_not()'
  ewah_bitmap: delete unused 'ewah_and_not()'
  ewah_bitmap: delete unused 'ewah_and()'
  ewah/bitmap.c: delete unused 'bitmap_each_bit()'
  ewah/bitmap.c: delete unused 'bitmap_clear()'
2018-07-18 12:20:28 -07:00
Junio C Hamano
7e25437d35 Merge branch 'sb/submodule-core-worktree'
"git submodule" did not correctly adjust core.worktree setting that
indicates whether/where a submodule repository has its associated
working tree across various state transitions, which has been
corrected.

* sb/submodule-core-worktree:
  submodule deinit: unset core.worktree
  submodule: ensure core.worktree is set after update
  submodule: unset core.worktree if no working tree is present
2018-07-18 12:20:28 -07:00
Junio C Hamano
00624d608c Merge branch 'sb/object-store-grafts'
The conversion to pass "the_repository" and then "a_repository"
throughout the object access API continues.

* sb/object-store-grafts:
  commit: allow lookup_commit_graft to handle arbitrary repositories
  commit: allow prepare_commit_graft to handle arbitrary repositories
  shallow: migrate shallow information into the object parser
  path.c: migrate global git_path_* to take a repository argument
  cache: convert get_graft_file to handle arbitrary repositories
  commit: convert read_graft_file to handle arbitrary repositories
  commit: convert register_commit_graft to handle arbitrary repositories
  commit: convert commit_graft_pos() to handle arbitrary repositories
  shallow: add repository argument to is_repository_shallow
  shallow: add repository argument to check_shallow_file_for_update
  shallow: add repository argument to register_shallow
  shallow: add repository argument to set_alternate_shallow_file
  commit: add repository argument to lookup_commit_graft
  commit: add repository argument to prepare_commit_graft
  commit: add repository argument to read_graft_file
  commit: add repository argument to register_commit_graft
  commit: add repository argument to commit_graft_pos
  object: move grafts to object parser
  object-store: move object access functions to object-store.h
2018-07-18 12:20:28 -07:00
Junio C Hamano
473b8bb3aa Merge branch 'en/merge-recursive-cleanup'
Code cleanup.

* en/merge-recursive-cleanup:
  merge-recursive: add pointer about unduly complex looking code
  merge-recursive: rename conflict_rename_*() family of functions
  merge-recursive: clarify the rename_dir/RENAME_DIR meaning
  merge-recursive: align labels with their respective code blocks
  merge-recursive: fix numerous argument alignment issues
  merge-recursive: fix miscellaneous grammar error in comment
2018-07-18 12:20:27 -07:00
Eric Sunshine
a0a630192d t/check-non-portable-shell: detect "FOO=bar shell_func"
One-shot environment variable assignments, such as 'FOO' in
"FOO=bar cmd", exist only during the invocation of 'cmd'. However, if
'cmd' happens to be a shell function, then 'FOO' is assigned in the
executing shell itself, and that assignment remains until the process
exits (unless explicitly unset). Since this side-effect of
"FOO=bar shell_func" is unlikely to be intentional, detect and report
such usage.

To distinguish shell functions from other commands, perform a pre-scan
of shell scripts named as input, gleaning a list of function names by
recognizing lines of the form (loosely matching whitespace):

    shell_func () {

and later report suspect lines of the form (loosely matching quoted
values):

    FOO=bar [BAR=foo ...] shell_func

Also take care to stitch together incomplete lines (those ending with
"\") since suspect invocations may be split over multiple lines:

    FOO=bar BAR=foo \
    shell_func

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:55:01 -07:00
Eric Sunshine
c433600593 t/check-non-portable-shell: make error messages more compact
Error messages emitted by this linting script are long and noisy,
consisting of several sections:

    <test-script>:<line#>: error: <explanation>: <failed-shell-text>

The line of failed shell text, usually coming from within a test body,
is often indented by one or two TABs, with the result that the actual
(important) text is separated from <explanation> by a good deal of empty
space. This can make for a difficult read, especially on typical
80-column terminals.

Make the messages more compact and perhaps a bit easier to digest by
folding out the leading whitespace from <failed-shell-text>.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:55:01 -07:00
Eric Sunshine
ef2d2accef t/check-non-portable-shell: stop being so polite
Error messages emitted by this linting script are long and noisy,
consisting of several sections:

    <test-script>:<line#>: error: <explanation>: <failed-shell-text>

Many problem explanations ask the reader to "please" use a suggested
alternative, however, such politeness is unnecessary and just adds to
the noise and length of the line, so drop "please" to make the message a
bit more concise.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:55:01 -07:00
Eric Sunshine
079b087c8e t6046/t9833: fix use of "VAR=VAL cmd" with a shell function
Unlike "FOO=bar cmd" one-shot environment variable assignments
which exist only for the invocation of 'cmd', those assigned by
"FOO=bar shell_func" exist within the running shell and continue to
do so until the process exits (or are explicitly unset). It is
unlikely that this behavior was intended by the test author.

In these particular tests, the "FOO=bar shell_func" invocations are
already in subshells, so the assignments don't last too long, don't
appear to harm subsequent commands in the same subshells, and don't
affect other tests in the same scripts, however, the usage is
nevertheless misleading and poor practice, so fix the tests to assign
and export the environment variables in the usual fashion.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:55:01 -07:00
Junio C Hamano
f44a7442f6 Merge branch 'jc/t3404-one-shot-export-fix' into es/test-lint-one-shot-export
* jc/t3404-one-shot-export-fix:
  t3404: fix use of "VAR=VAL cmd" with a shell function
2018-07-16 14:54:55 -07:00
Johannes Schindelin
ede8d89bb1 vcbuild/README: update to accommodate for missing common-cmds.h
In 60f487ac0e (Remove common-cmds.h, 2018-05-10), we forgot to adjust
this README when removing the common-cmds.h file.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:30:34 -07:00
brian m. carlson
580f0980e1 pretty: switch hard-coded constants to the_hash_algo
Switch several hard-coded constants into expressions based either on
GIT_MAX_HEXSZ or the_hash_algo.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:40 -07:00
brian m. carlson
94b5e093f9 sha1-file: convert constants to uses of the_hash_algo
Convert one use of 20 and several uses of GIT_SHA1_HEXSZ into references
to the_hash_algo.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:40 -07:00
brian m. carlson
2ed1960a77 log-tree: switch GIT_SHA1_HEXSZ to the_hash_algo->hexsz
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
02afca1ee4 diff: switch GIT_SHA1_HEXSZ to use the_hash_algo
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
b7f20f7204 builtin/merge-recursive: make hash independent
Use GIT_MAX_HEXSZ instead of GIT_SHA1_HEXSZ for an allocation so that it
is sufficiently large.  Switch a comparison to use the_hash_algo to
determine the length of a hex object ID.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
ab47df2d9a builtin/merge: switch to use the_hash_algo
Switch uses of GIT_SHA1_HEXSZ to use the_hash_algo instead.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
5188eb5d8e builtin/fmt-merge-msg: make hash independent
Convert several uses of GIT_SHA1_HEXSZ into references to the_hash_algo.
Switch other uses into a use of parse_oid_hex and uses of its computed
pointer.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
fe04ccf7ca builtin/update-index: simplify parsing of cacheinfo
Switch from using get_oid_hex to parse_oid_hex to simplify pointer
operations and avoid the need for a hash-related constant.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
1928c9449e builtin/update-index: convert to using the_hash_algo
Switch from using GIT_SHA1_HEXSZ to the_hash_algo to make the parsing of
the index information hash independent.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
2ae2e2a1ca refs/files-backend: use the_hash_algo for writing refs
In order to ensure we write the correct amount, use the_hash_algo to
find the correct number of bytes for the current hash.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
7b38efad5e sha1-name: use the_hash_algo when parsing object names
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
4b048c917f strbuf: allocate space with GIT_MAX_HEXSZ
In order to be sure we have enough space to use with any hash algorithm,
use GIT_MAX_HEXSZ to allocate space.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
2770ccbdb2 commit: express tree entry constants in terms of the_hash_algo
Specify these constants in terms of the size of the hash algorithm
currently in use.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
d9cd734990 hex: switch to using the_hash_algo
Instead of using the GIT_SHA1_* constants, switch to using the_hash_algo
to convert object IDs to and from hex format.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
83e4b7571c tree-walk: replace hard-coded constants with the_hash_algo
Remove the hard-coded 20-based values and replace them with uses of
the_hash_algo.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:39 -07:00
brian m. carlson
509f6f62a4 cache: update object ID functions for the_hash_algo
Most of our code has been converted to use struct object_id for object
IDs.  However, there are some places that still have not, and there are
a variety of places that compare equivalently sized hashes that are not
object IDs.  All of these hashes are artifacts of the internal hash
algorithm in use, and when we switch to NewHash for object storage, all
of these uses will also switch.

Update the hashcpy, hashclr, and hashcmp functions to use the_hash_algo,
since they are used in a variety of places to copy and manipulate
buffers that need to move data into or out of struct object_id.  This
has the effect of making the corresponding oid* functions use
the_hash_algo as well.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:38 -07:00
Jeff King
022d2ac1f3 blame: prefer xsnprintf to strcpy for colors
Our color buffers are all COLOR_MAXLEN, which fits the
largest possible color. So we can never overflow the buffer
by copying an existing color. However, using strcpy() makes
it harder to audit the code-base for calls that _are_
problems. We should use something like xsnprintf(), which
shows the reader that we expect this never to fail (and
provides a run-time assertion if it does, just in case).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 13:59:39 -07:00
Aaron Schrab
02cfd14920 sequencer: use configured comment character
Use the configured comment character when generating comments about
branches in a todo list.  Failure to honor this configuration causes a
failure to parse the resulting todo list.

Setting core.commentChar to "auto" will not be honored here, and the
previously configured or default value will be used instead. But, since
the todo list will consist of only generated content, there should not
be any non-comment lines beginning with that character.

Signed-off-by: Aaron Schrab <aaron@schrab.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 11:04:56 -07:00
Junio C Hamano
650161a277 t3404: fix use of "VAR=VAL cmd" with a shell function
Bash may take it happily but running test with dash reveals a breakage.

This was not discovered for a long time as no tests after this test
depended on GIT_AUTHOR_NAME to be reverted correctly back to the
original value after this step is done.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 13:31:57 -07:00
Ben Peart
5a06a20e0c handle lower case drive letters on Windows
On Windows, if a tool calls SetCurrentDirectory with a lower case drive
letter, the subsequent call to GetCurrentDirectory will return the same
lower case drive letter. Powershell, for example, does not normalize the
path. If that happens, test-drop-caches will error out as it does not
correctly to handle lower case drive letters.

Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Ben Peart <Ben.Peart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 12:11:05 -07:00
William Chargin
6b3351e799 sha1-name.c: for ":/", find detached HEAD commits
This patch broadens the set of commits matched by ":/<pattern>" to
include commits reachable from HEAD but not any named ref. This avoids
surprising behavior when working with a detached HEAD and trying to
refer to a commit that was recently created and only exists within the
detached state.

If multiple worktrees exist, only the current worktree's HEAD is
considered reachable. This is consistent with the existing behavior for
other per-worktree refs: e.g., bisect refs are considered reachable, but
only within the relevant worktree.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: William Chargin <wchargin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 12:07:25 -07:00
Ramsay Jones
6b82db9b42 t6036: fix broken && chain in sub-shell
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 11:48:52 -07:00
SZEDER Gábor
e8b3b2e275 t/lib-httpd: avoid occasional failures when checking access.log
The last test of 't5561-http-backend.sh', 'server request log matches
test results' may fail occasionally, because the order of entries in
Apache's access log doesn't match the order of requests sent in the
previous tests, although all the right requests are there.  I saw it
fail on Travis CI five times in the span of about half a year, when
the order of two subsequent requests was flipped, and could trigger
the failure with a modified Git.  However, I was unable to trigger it
with stock Git on my machine.  Three tests in
't5541-http-push-smart.sh' and 't5551-http-fetch-smart.sh' check
requests in the log the same way, so they might be prone to a similar
occasional failure as well.

When a test sends a HTTP request, it can continue execution after
'git-http-backend' fulfilled that request, but Apache writes the
corresponding access log entry only after 'git-http-backend' exited.
Some time inevitably passes between fulfilling the request and writing
the log entry, and, under unfavourable circumstances, enough time
might pass for the subsequent request to be sent and fulfilled by a
different Apache thread or process, and then Apache writes access log
entries racily.

This effect can be exacerbated by adding a bit of variable delay after
the request is fulfilled but before 'git-http-backend' exits, e.g.
like this:

  diff --git a/http-backend.c b/http-backend.c
  index f3dc218b2..bbf4c125b 100644
  --- a/http-backend.c
  +++ b/http-backend.c
  @@ -709,5 +709,7 @@ int cmd_main(int argc, const char **argv)
   					   max_request_buffer);

   	cmd->imp(&hdr, cmd_arg);
  +	if (getpid() % 2)
  +		sleep(1);
   	return 0;
   }

This delay considerably increases the chances of log entries being
written out of order, and in turn makes t5561's last test fail almost
every time.  Alas, it doesn't seem to be enough to trigger a similar
failure in t5541 and t5551.

So, since we can't just rely on the order of access log entries always
corresponding the order of requests, make checking the access log more
deterministic by sorting (simply lexicographically) both the stripped
access log entries and the expected entries before the comparison with
'test_cmp'.  This way the order of log entries won't matter and
occasional out-of-order entries won't trigger a test failure, but the
comparison will still notice any unexpected or missing log entries.

OTOH, this sorting will make it harder to identify from which test an
unexpected log entry came from or which test's request went missing.
Therefore, in case of an error include the comparison of the unsorted
log enries in the test output as well.

And since all this should be performed in four tests in three test
scripts, put this into a new helper function 'check_access_log' in
't/lib-httpd.sh'.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 10:40:31 -07:00
SZEDER Gábor
6940a06022 t/lib-httpd: add the strip_access_log() helper function
Four tests in three httpd-related test scripts check the contents of
Apache's 'access.log', and they all do so by running 'sed' with the
exact same script consisting of four s/// commands to strip
uninteresting log fields and to vertically align the requested URLs.

Extract this into a common helper function 'strip_access_log' in
'lib-httpd.sh', and use it in all of those tests.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 10:40:31 -07:00
SZEDER Gábor
a704c6439a t5541: clean up truncating access log
In the second test of 't5541-http-push-smart.sh', 'no empty path
components' we truncate Apache's access log by running:

  echo >.../access.log

There are two issues with this approach:

  - This doesn't leave an empty file behind, like a proper truncation
    would, but a file with a lone newline in it.  Consequently, a
    later test checking the log's contents must consider this improper
    truncation and include an empty line in the expected content.

  - This truncation is done in the middle of the test, because,
    quoting the in-code comment, "we do this [truncation] before the
    actual comparison to ensure the log is cleared" even when
    subsequent 'test_cmp' fails.  Alas, this is not quite robust
    enough, as it is conceivable that 'git clone' fails after already
    having sent a request, in which case the access log would not be
    truncated and would leave stray log entries behind.

Since there is no need for that newline at all, drop the 'echo' from
the truncation and adjust the expected content accordingly.
Furthermore, make sure that the truncation is performed no matter
whether and how 'git clone' fails unexpectedly by specifying it as a
'test_when_finished' command.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-12 10:40:26 -07:00
Jeff King
3506dc9445 has_uncommitted_changes(): fall back to empty tree
If has_uncommitted_changes() can't resolve HEAD (e.g.,
because it's unborn or corrupt), then we end up calling
run_diff_index() with an empty revs.pending array. This
causes a segfault, as run_diff_index() blindly looks at the
first pending item.

Fixing this raises a question of fault: should
run_diff_index() handle this case, or is the caller wrong to
pass an empty pending list?

Looking at the other callers of run_diff_index(), they
handle this in one of three ways:

 - they resolve the object themselves, and avoid doing the
   diff if it's not valid

 - they resolve the object themselves, and fall back to the
   empty tree

 - they use setup_revisions(), which will die() if the
   object isn't valid

Since this is the only broken caller, that argues that the
fix should go there. Falling back to the empty tree makes
sense here, as we'd claim uncommitted changes if and only if
the index is non-empty. This may be a little funny in the
case of corruption (the corrupt HEAD probably _isn't_
empty), but:

  - we don't actually know the reason here that HEAD didn't
    resolve (the much more likely case is that we have an
    unborn HEAD, in which case the empty tree comparison is
    the right thing)

  - this matches how other code, like "git diff", behaves

While we're thinking about it, let's add an assertion to
run_diff_index(). It should always be passed a single
object, and as this bug shows, it's easy to get it wrong
(and an assertion is easier to hunt down than a segfault, or
a quietly ignored extra tree).

Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 12:12:37 -07:00
Henning Schild
fbd0f16610 gpg-interface: make parse_gpg_output static and remove from interface header
Turn parse_gpg_output into a static function, the only outside user was
migrated in an earlier commit.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 10:05:22 -07:00
Henning Schild
3b9291e182 builtin/receive-pack: use check_signature from gpg-interface
The combination of verify_signed_buffer followed by parse_gpg_output is
available as check_signature. Use that instead of implementing it again.

Signed-off-by: Henning Schild <henning.schild@siemens.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 10:05:20 -07:00
Max Kirillov
b33fdfc34c unpack-trees: do not fail reset because of unmerged skipped entry
After modify/delete merge conflict happens in a file skipped by sparse
checkout, "git reset --merge", which implements the "--abort" actions,
and "git reset --hard" fail with message "Entry * not uptodate. Cannot
update sparse checkout."

As explained in [1], the up-to-date checker mistakenly treats conflicted
entry which does not exist in HEAD as still skipped by sparse checkout.

Use the fix suggested in [1]. Also, add test case which verifies the
issue is fixed.

[1] https://public-inbox.org/git/20180616051444.GA29754@duynguyen.home/

Signed-off-by: Duy Nguyen <pclouds@gmail.com>
Signed-off-by: Max Kirillov <max@max630.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 09:35:41 -07:00
Jeff King
c5e358d073 sequencer: don't say BUG on bogus input
When cherry-picking a single commit, we go through a special
code path that avoids creating a sequencer todo list at all.
This path expects our revision parsing to turn up exactly
one commit, and dies with a BUG if it doesn't.

But it's actually quite easy to fool. For example:

  $ git cherry-pick --author=no.such.person HEAD
  error: BUG: expected exactly one commit from walk
  fatal: cherry-pick failed

This isn't a bug; it's just bogus input.

The condition to trigger this message actually has two
parts:

  1. We saw no commits. That's the case in the example
     above. Let's drop the "BUG" here to make it clear that
     the input is the problem. And let's also use the phrase
     "empty commit set passed", which matches what we say
     when we do a real revision walk and it turns up empty.

  2. We saw more than one commit. That one _should_ be
     impossible to trigger, since we fed at most one tip and
     provided the no_walk option (and we'll have already
     expanded options like "--branches" that can turn into
     multiple tips). If this ever triggers, it's an
     indication that the conditional added by 7acaaac275
     (revert: allow single-pick in the middle of cherry-pick
     sequence, 2011-12-10) needs to more carefully define
     the single-pick case.

     So this can remain a bug, but we'll upgrade it to use
     the BUG() macro, which would make it easier to detect
     and analyze if it does trigger.

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 08:37:59 -07:00
Jeff King
8530c73915 sequencer: handle empty-set cases consistently
If the user gives us a set that prepare_revision_walk()
takes to be empty, like:

  git cherry-pick base..base

then we report an error. It's nonsense, and there's nothing
to pick.

But if they use revision options that later cull the list,
like:

  git cherry-pick --author=nobody base~2..base

then we quietly create an empty todo list and return
success.

Arguably either behavior is acceptable, but we should
definitely be consistent about it. Reporting an error
seems to match the original intent, which dates all the way
back to 7e2bfd3f99 (revert: allow cherry-picking more than
one commit, 2010-06-02). That in turn was trying to match
the single-commit case that existed before then (and which
continues to issue an error).

Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-11 08:37:47 -07:00
Ben Peart
80a6c2073b convert log_ref_write_fd() to use strbuf
Since we don't care about how many bytes were written, simplify the return
value logic.

log_ref_write_fd() was written long before strbuf was fleshed out. Remove
the old manual buffer management code and replace it with strbuf(). Also
update copy_reflog_msg() which is called only by log_ref_write_fd() to use
strbuf as it keeps things consistent.

Signed-off-by: Ben Peart <Ben.Peart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-10 14:22:44 -07:00
Beat Bolli
2b647a05d7 utf8.c: avoid char overflow
In ISO C, char constants must be in the range -128..127. Change the BOM
constants to char literals to avoid overflow.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 14:38:12 -07:00
Beat Bolli
b6d3f5a960 string-list.c: avoid conversion from void * to function pointer
ISO C forbids the conversion of void pointers to function pointers.
Introduce a context struct that encapsulates the function pointer.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 14:37:50 -07:00
Beat Bolli
9ad36356dd sequencer.c: avoid empty statements at top level
The macro GIT_PATH_FUNC expands to a function definition that ends with
a closing brace. Remove two extra semicolons.

While at it, fix the example in path.h.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 14:37:03 -07:00
Beat Bolli
8302f50e8c convert.c: replace "\e" escapes with "\033".
The "\e" escape is not defined in ISO C.

While on this line, add a missing space after the comma.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 14:36:24 -07:00
Junio C Hamano
13f925f3e4 fixup! refs/refs-internal.h: avoid forward declaration of an enum 2018-07-09 14:36:12 -07:00
Beat Bolli
91c2f2040a refs/refs-internal.h: avoid forward declaration of an enum
Include iterator.h to define enum iterator_selection.

Signed-off-by: Beat Bolli <dev+git@drbeat.li>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-09 14:35:52 -07:00