Commit Graph

49823 Commits

Author SHA1 Message Date
Junio C Hamano
0d7bdad49d Merge branch 'ks/test-readme-phrasofix'
Doc updates.

* ks/test-readme-phrasofix:
  t/README: fix typo and grammatically improve a sentence
2017-09-25 15:24:10 +09:00
Junio C Hamano
3430fff768 Merge branch 'ow/rev-parse-is-shallow-repo'
"git rev-parse" learned "--is-shallow-repository", that is to be
used in a way similar to existing "--is-bare-repository" and
friends.

* ow/rev-parse-is-shallow-repo:
  rev-parse: rev-parse: add --is-shallow-repository
2017-09-25 15:24:10 +09:00
Junio C Hamano
9709ffac80 Merge branch 'rj/test-ulimit-on-windows'
On Cygwin, "ulimit -s" does not report failure but it does not work
at all, which causes an unexpected success of some tests that
expect failures under a limited stack situation.  This has been
fixed.

* rj/test-ulimit-on-windows:
  t9010-*.sh: skip all tests if the PIPE prereq is missing
  test-lib: use more compact expression in PIPE prerequisite
  test-lib: don't use ulimit in test prerequisites on cygwin
2017-09-25 15:24:10 +09:00
Junio C Hamano
f759c873a3 Merge branch 'jk/info-alternates-fix'
A regression fix for 2.11 that made the code to read the list of
alternate object stores overrun the end of the string.

* jk/info-alternates-fix:
  read_info_alternates: warn on non-trivial errors
  read_info_alternates: read contents into strbuf
2017-09-25 15:24:09 +09:00
Junio C Hamano
48f1e49be1 Merge branch 'mh/for-each-string-list-item-empty-fix'
Code cmp.std.c nitpick.

* mh/for-each-string-list-item-empty-fix:
  for_each_string_list_item: avoid undefined behavior for empty list
2017-09-25 15:24:09 +09:00
Junio C Hamano
6b05e611bc Merge branch 'tb/test-lint-echo-e'
The test linter has been taught that we do not like "echo -e".

* tb/test-lint-echo-e:
  test-lint: echo -e (or -E) is not portable
2017-09-25 15:24:09 +09:00
Junio C Hamano
2bab096ef8 Merge branch 'jk/revision-remove-cmdline-pathspec'
Code clean-up that also plugs memory leaks.

* jk/revision-remove-cmdline-pathspec:
  pathspec doc: parse_pathspec does not maintain references to args
  revision: replace "struct cmdline_pathspec" with argv_array
2017-09-25 15:24:09 +09:00
Junio C Hamano
f05a23ae3b Merge branch 'ls/travis-scriptify'
The scripts to drive TravisCI has been reorganized and then an
optimization to avoid spending cycles on a branch whose tip is
tagged has been implemented.

* ls/travis-scriptify:
  travis-ci: fix "skip_branch_tip_with_tag()" string comparison
  travis: dedent a few scripts that are indented overly deeply
  travis-ci: skip a branch build if equal tag is present
  travis-ci: move Travis CI code into dedicated scripts
2017-09-25 15:24:09 +09:00
Junio C Hamano
abdf7d8e25 Merge branch 'aw/gc-lockfile-fscanf-fix'
"git gc" tries to avoid running two instances at the same time by
reading and writing pid/host from and to a lock file; it used to
use an incorrect fscanf() format when reading, which has been
corrected.

* aw/gc-lockfile-fscanf-fix:
  gc: call fscanf() with %<len>s, not %<len>c, when reading hostname
2017-09-25 15:24:09 +09:00
Junio C Hamano
450b908648 Merge branch 'hv/mv-nested-submodules-test'
A test to demonstrate "git mv" failing to adjust nested submodules
has been added.

* hv/mv-nested-submodules-test:
  add test for bug in git-mv for recursive submodules
2017-09-25 15:24:08 +09:00
Junio C Hamano
a36f631ad6 Merge branch 'bw/git-clang-format'
"make style" runs git-clang-format to help developers by pointing
out coding style issues.

* bw/git-clang-format:
  Makefile: add style build rule
  clang-format: outline the git project's coding style
2017-09-25 15:24:08 +09:00
Junio C Hamano
b67f154bf9 Merge branch 'nm/imap-send-with-curl'
"git imap-send" has our own implementation of the protocol and also
can use more recent libCurl with the imap protocol support.  Update
the latter so that it can use the credential subsystem, and then
make it the default option to use, so that we can eventually
deprecate and remove the former.

* nm/imap-send-with-curl:
  imap-send: use curl by default when possible
  imap_send: setup_curl: retreive credentials if not set in config file
  imap-send: add wrapper to get server credentials if needed
  imap-send: return with error if curl failed
2017-09-25 15:24:07 +09:00
Junio C Hamano
77f45395b0 Merge branch 'ks/commit-do-not-touch-cut-line'
The explanation of the cut-line in the commit log editor has been
slightly tweaked.

* ks/commit-do-not-touch-cut-line:
  commit-template: change a message to be more intuitive
2017-09-25 15:24:07 +09:00
Junio C Hamano
d019010559 Merge branch 'tg/refs-allowed-flags'
API error-proofing which happens to also squelch warnings from GCC.

* tg/refs-allowed-flags:
  refs: strip out not allowed flags from ref_transaction_update
2017-09-25 15:24:07 +09:00
Junio C Hamano
62b1cb7b13 Merge branch 'rs/archive-excluded-directory'
"git archive", especially when used with pathspec, stored an empty
directory in its output, even though Git itself never does so.
This has been fixed.

* rs/archive-excluded-directory:
  archive: don't add empty directories to archives
2017-09-25 15:24:07 +09:00
Junio C Hamano
5079cc82cb Merge branch 'ks/help-alias-label'
"git help co" now says "co is aliased to ...", not "git co is".

* ks/help-alias-label:
  help: change a message to be more precise
2017-09-25 15:24:07 +09:00
Junio C Hamano
ceb7a01aac Merge branch 'jn/per-repo-object-store-fixes'
Step #0 of a planned & larger series to make the in-core object
store per in-core repository object.

* jn/per-repo-object-store-fixes:
  replace-objects: evaluate replacement refs without using the object store
  push, fetch: error out for submodule entries not pointing to commits
  pack: make packed_git_mru global a value instead of a pointer
2017-09-25 15:24:07 +09:00
Junio C Hamano
c50424a6f0 Merge branch 'jk/write-in-full-fix'
Many codepaths did not diagnose write failures correctly when disks
go full, due to their misuse of write_in_full() helper function,
which have been corrected.

* jk/write-in-full-fix:
  read_pack_header: handle signed/unsigned comparison in read result
  config: flip return value of store_write_*()
  notes-merge: use ssize_t for write_in_full() return value
  pkt-line: check write_in_full() errors against "< 0"
  convert less-trivial versions of "write_in_full() != len"
  avoid "write_in_full(fd, buf, len) != len" pattern
  get-tar-commit-id: check write_in_full() return against 0
  config: avoid "write_in_full(fd, buf, len) < len" pattern
2017-09-25 15:24:06 +09:00
Junio C Hamano
94982b6999 Merge branch 'ez/doc-duplicated-words-fix'
Typofix.

* ez/doc-duplicated-words-fix:
  doc: fix minor typos (extra/duplicated words)
2017-09-25 15:24:06 +09:00
Junio C Hamano
f5faef8525 Merge branch 'kd/doc-for-each-ref'
Doc update.

* kd/doc-for-each-ref:
  doc/for-each-ref: explicitly specify option names
  doc/for-each-ref: consistently use '=' to between argument names and values
2017-09-25 15:24:06 +09:00
Junio C Hamano
b9db14f52e Merge branch 'cc/subprocess-handshake-missing-capabilities'
Finishing touches to a topic already in 'master'.

* cc/subprocess-handshake-missing-capabilities:
  subprocess: loudly die when subprocess asks for an unsupported capability
2017-09-25 15:24:06 +09:00
Junio C Hamano
d085f9773a Merge branch 'kw/write-index-reduce-alloc'
A hotfix to a topic already in 'master'.

* kw/write-index-reduce-alloc:
  read-cache: fix index corruption with index v4
  Add t/helper/test-write-cache to .gitignore
2017-09-25 15:24:06 +09:00
Junio C Hamano
b0df15a15d Merge branch 'mg/name-rev-tests-with-short-stack'
A handful of tests to demonstrates a recursive implementation of
"name-rev" hurts.

* mg/name-rev-tests-with-short-stack:
  t6120: test describe and name-rev with deep repos
  t6120: clean up state after breaking repo
  t6120: test name-rev --all and --stdin
  t7004: move limited stack prereq to test-lib
2017-09-25 15:24:05 +09:00
Brandon Casey
a6304fa4c2 parse-options: only insert newline in help text if needed
Currently, when parse_options() produces a help message it always emits
a blank line after the usage text to separate it from the options text.
If the option spec does not define any switches, or only defines hidden
switches that will not be displayed, then the help text will end up with
two trailing blank lines instead of one.  Let's defer emitting the blank
line between the usage text and the options text until it is clear that
the options section will not be empty.

Fixes t1502.5, t1502.6.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-25 14:35:53 +09:00
Brandon Casey
1a9bf1e176 parse-options: write blank line to correct output stream
When commit 54e6dc7 added translation support to parse-options, an
fprintf was mistakenly replaced by a call to putchar().  Let's use fputc
instead.

Fixes t0040.11, t0040.12, t0040.33, and t1502.8.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-25 14:35:52 +09:00
Brandon Casey
c97ee171a6 t0040,t1502: Demonstrate parse_options bugs
When the option spec contains no switches or only hidden switches,
parse_options will emit an extra blank line at the end of help output so
that the help text will end in two blank lines instead of one.

When parse_options produces internal help output after an error has
occurred it will emit blank lines within the usage string to stdout
instead of stderr.

Update t/helper/test-parse-options.c to have a description body in the
usage string to exercise this second bug and mark tests as failing in
t0040.

Add tests to t1502 to demonstrate both of these problems.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-25 14:35:50 +09:00
Junio C Hamano
c25d98b2a7 merge-strategies: avoid implying that "-s theirs" exists
The description of `-Xours` merge option has a parenthetical note
that tells the readers that it is very different from `-s ours`,
which is correct, but the description of `-Xtheirs` that follows it
carelessly says "this is the opposite of `ours`", giving a false
impression that the readers also need to be warned that it is very
different from `-s theirs`, which in reality does not even exist.

Clarify it a bit to avoid misleading readers.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-25 14:34:23 +09:00
Christian Couder
5d445f3416 perf: store subsection results in "test-results/$GIT_PERF_SUBSECTION/"
When tests are run for a subsection defined in a config file, it is
better if the results for the current subsection are not overwritting
the results of a previous subsection.

So let's store the results for a subsection in a subdirectory of
"test-results/" with the subsection name.

The aggregate.perl, when it is run for a subsection, should then
aggregate the results found in "test-results/$GIT_PERF_SUBSECTION/".

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
ffdd01076e perf/run: show name of rev being built
It is nice for the user to not just show the sha1 of the
current revision being built but also the actual name of
this revision.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
afda85c25d perf/run: add run_subsection()
Let's actually use the subsections we find in the config file
to run the perf tests separately for each subsection.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
9ba95ed23c perf/run: update get_var_from_env_or_config() for subsections
As we will set some config options in subsections, let's
teach get_var_from_env_or_config() to get the config options
from the subsections if they are set there.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
2638441e07 perf/run: add get_subsections()
This function makes it possible to find subsections, so that
we will be able to run different tests for different subsections
in a later commit.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
948e22e2bb perf/run: add calls to get_var_from_env_or_config()
These calls make it possible to have the make command or the
make options in a config file, instead of in environment
variables.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
91c4339e19 perf/run: add GIT_PERF_DIRS_OR_REVS
This environment variable can be set to some revisions or
directories whose Git versions should be tested, in addition
to the revisions or directories passed as arguments to the
'run' script.

This enables a "perf.dirsOrRevs" configuration variable to
be used to set revisions or directories whose Git versions
should be tested.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
e6b71539de perf/run: add get_var_from_env_or_config()
Add get_var_from_env_or_config() to easily set variables
from a config file if they are defined there and not already set.

This can also set them to a default value if one is provided.

As an example, use this function to set GIT_PERF_REPEAT_COUNT
from the perf.repeatCount config option or from the default
value.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Christian Couder
e3d5e1207e perf/run: add '--config' option to the 'run' script
It is error prone and tiring to use many long environment
variables to give parameters to the 'run' script.

Let's make it easy to store some parameters in a config
file and to pass them to the run script.

The GIT_PERF_CONFIG_FILE variable will be set to the
argument of the '--config' option. This variable is not
used yet. It will be used in a following commit.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 16:58:34 +09:00
Stefan Beller
d3a44f637e Documentation/config: clarify the meaning of submodule.<name>.update
With more commands (that potentially change a submodule) paying attention
to submodules as well as the recent discussion[1] on
submodule.<name>.update, let's spell out that submodule.<name>.update
is strictly to be used for configuring the "submodule update" command
and not to be obeyed by other commands.

These other commands usually have a strict meaning of what they should
do (i.e. checkout, reset, rebase, merge) as well as have their name
overlapping with the modes possible for submodule.<name>.update.

[1] https://public-inbox.org/git/4283F0B0-BC1C-4ED1-8126-7E512D84484B@gmail.com/
    submodule.<name>.update was set to "none", triggering unexpected
    behavior as the submodule was thought to never be touched.
    However a newer version of Git taught 'git pull --rebase' to also
    populate and rebase submodules if they were active.
    The newer options such as submodule.active and command specific
    flags would not have triggered unexpected behavior.

Reported-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:41:47 +09:00
Ben Peart
7c545be9a1 update-index: add a new --force-write-index option
At times, it makes sense to avoid the cost of writing out the index
when the only changes can easily be recomputed on demand. This causes
problems when trying to write test cases to verify that state as they
can't guarantee the state has been persisted to disk.

Add a new option (--force-write-index) to update-index that will
ensure the index is written out even if the cache_changed flag is not
set.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:39:40 +09:00
Ben Peart
3e2c66961a preload-index: add override to enable testing preload-index
By default, the preload index code path doesn't run unless there is a
minimum of 1000 files. To enable running the test suite and having it
execute the preload-index path, add an environment variable
(GIT_FORCE_PRELOAD_TEST) which will override that minimum and set it to 2.

This enables you run existing tests and have the core.preloadindex code
path execute as long as the test has at least 2 files by setting
GIT_FORCE_PRELOAD_TEXT=1 before running the test.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:39:40 +09:00
Ben Peart
b2e39d0067 bswap: add 64 bit endianness helper get_be64
Add a new get_be64 macro to enable 64 bit endian conversions on memory
that may or may not be aligned.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:39:37 +09:00
René Scharfe
c8cf423eab mailinfo: don't decode invalid =XY quoted-printable sequences
Decode =XY in quoted-printable segments only if X and Y are hexadecimal
digits, otherwise just copy them.  That's at least better than
interpreting negative results from hexval() as a character.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:29:19 +09:00
René Scharfe
744c040b19 refs: pass NULL to resolve_ref_unsafe() if hash is not needed
This allows us to get rid of some write-only variables, among them seven
SHA1 buffers.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:18:21 +09:00
René Scharfe
e691b027b6 refs: pass NULL to refs_resolve_ref_unsafe() if hash is not needed
This allows us to get rid of two write-only variables, one of them
being a SHA1 buffer.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:18:18 +09:00
René Scharfe
54fad6614f refs: make sha1 output parameter of refs_resolve_ref_unsafe() optional
Allow callers of refs_resolve_ref_unsafe() to pass NULL if they don't
need the resolved hash value.  We already allow the same for the flags
parameter.  This new leniency is inherited by the various wrappers like
resolve_ref_unsafe().

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:18:18 +09:00
Ilya Kantor
9c03caca2c userdiff: fix HTML hunk header regexp
Current HTML header regexp doesn't match headers without attributes.

So it fails to match <h1>...</h1>, while <h1 class="smth">...</h1> matches.

Make attributes optional to fix this.  The regexp is still far from
perfect, but now it at least handles the common case.

Signed-off-by: Ilya Kantor <iliakan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:13:28 +09:00
Jeff King
c08fd6388c doc: put literal block delimiter around table
The git-read-tree manpage has a table that is meant to
be shown with its spacing exactly as it is in the source. We
mark it as a "literal paragraph" by indenting each line by
at least one space. This renders OK with asciidoc for both
the HTML and manpage versions.

But there are two problems when we render it with
asciidoctor.

The first is that some lines mix tabs and spaces.  Even if
asciidoctor is correctly configured for 8-space tabs, it
seems to handle this case differently, soaking up some of
the initial literal-paragraph spaces and mis-aligning the
table text.

The second problem is that the table uses blank lines to
group rows. But as blank lines separate paragraphs in
asciidoc, this actually means that each chunk of the table
is rendered in its own pre-formatted <div> block. This
happens even with vanilla asciidoc, but there's no visible
result because the literal paragraphs aren't styled in any
special way. But with asciidoctor (or at least the styles
used on git-scm.com), literal paragraphs are styled with a
different background.  This breaks the table into a visually
distracting sequence of chunks.

We can fix both by adding a literal-paragraph block
delimiter. That turns the whole table into a single block
(for both implementations) and causes asciidoctor to render
the indentation as it is in the source.

Reported-at: https://github.com/git/git-scm.com/issues/1023
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:09:45 +09:00
Martin Ågren
4d01a7fa65 pack-bitmap[-write]: use object_array_clear(), don't leak
Instead of setting the fields of rev->pending to 0/NULL, thereby leaking
memory, call `object_array_clear(&rev->pending)`.

In pack-bitmap.c, we make copies of those fields as `pending_nr` and
`pending_e`. We never update the aliases and the original fields never
change, so the aliases are not really needed and just make it harder
than necessary to understand the code. While we're here, remove the
aliases to make the code easier to follow.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:06:08 +09:00
Martin Ågren
7199203937 object_array: add and use object_array_pop()
In a couple of places, we pop objects off an object array `foo` by
decreasing `foo.nr`. We access `foo.nr` in many places, but most if not
all other times we do so read-only, e.g., as we iterate over the array.
But when we change `foo.nr` behind the array's back, it feels a bit
nasty and looks like it might leak memory.

Leaks happen if the popped element has an allocated `name` or `path`.
At the moment, that is not the case. Still, 1) the object array might
gain more fields that want to be freed, 2) a code path where we pop
might start using names or paths, 3) one of these code paths might be
copied to somewhere where we do, and 4) using a dedicated function for
popping is conceptually cleaner.

Introduce and use `object_array_pop()` instead. Release memory in the
new function. Document that popping an object leaves the associated
elements in limbo.

The converted places were identified by grepping for "\.nr\>" and
looking for "--".

Make the new function return NULL on an empty array. This is consistent
with `pop_commit()` and allows the following:

	while ((o = object_array_pop(&foo)) != NULL) {
		// do something
	}

But as noted above, we don't need to go out of our way to avoid reading
`foo.nr`. This is probably more readable:

	while (foo.nr) {
		... o = object_array_pop(&foo);
		// do something
	}

The name of `object_array_pop()` does not quite align with
`add_object_array()`. That is unfortunate. On the other hand, it matches
`object_array_clear()`. Arguably it's `add_...` that is the odd one out,
since it reads like it's used to "add" an "object array". For that
reason, side with `object_array_clear()`.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:06:04 +09:00
Martin Ågren
dcb572ab94 object_array: use object_array_clear(), not free()
Instead of freeing `foo.objects` for an object array `foo` (sometimes
conditionally), call `object_array_clear(&foo)`. This means we don't
poke as much into the implementation, which is already a good thing, but
also that we release the individual entries as well, thereby fixing at
least one memory-leak (in diff-lib.c).

If someone is holding on to a pointer to an element's `name` or `path`,
that is now a dangling pointer, i.e., we'd be turning an unpleasant
situation into an outright bug. To the best of my understanding no such
long-term pointers are being taken.

The way we handle `study` in builting/reflog.c still looks like it might
leak. That will be addressed in the next commit.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:06:01 +09:00
Martin Ågren
b2ccdf7fc1 leak_pending: use object_array_clear(), not free()
Setting `leak_pending = 1` tells `prepare_revision_walk()` not to
release the `pending` array, and makes that the caller's responsibility.
See 4a43d374f (revision: add leak_pending flag, 2011-10-01) and
353f5657a (bisect: use leak_pending flag, 2011-10-01).

Commit 1da1e07c8 (clean up name allocation in prepare_revision_walk,
2014-10-15) fixed a memory leak in `prepare_revision_walk()` by
switching from `free()` to `object_array_clear()`. However, where we use
the `leak_pending`-mechanism, we're still only calling `free()`.

Use `object_array_clear()` instead. Copy some helpful comments from
353f5657a to the other callers that we update to clarify the memory
responsibilities, and to highlight that the commits are not affected
when we clear the array -- it is indeed correct to both tidy up the
commit flags and clear the object array.

Document `leak_pending` in revision.h to help future users get this
right.

Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:05:57 +09:00