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When `unbundle()` is invoked, fsck verification may be configured by
passing the `VERIFY_BUNDLE_FSCK` flag. This mechanism allows fsck checks
on the bundle to be enabled or disabled entirely. To facilitate more
fine-grained fsck configuration, additional context must be provided to
`unbundle()`.
Introduce the `unbundle_opts` type, which wraps the existing
`verify_bundle_flags`, to facilitate future extension of `unbundle()`
configuration. Also update `unbundle()` and its call sites to accept
this new options type instead of the flags directly. The end behavior is
functionally the same, but allows for the set of configurable options to
be extended. This is leveraged in a subsequent commit to enable fsck
message severity configuration.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A "git fetch" from the superproject going down to a submodule used
a wrong remote when the default remote names are set differently
between them.
* db/submodule-fetch-with-remote-name-fix:
submodule: correct remote name with fetch
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Fail gracefully instead of crashing when attempting to write the
contents of a corrupt in-core index as a tree object.
* ps/cache-tree-w-broken-index-entry:
unpack-trees: detect mismatching number of cache-tree/index entries
cache-tree: detect mismatching number of index entries
cache-tree: refactor verification to return error codes
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"git maintenance start" crashed due to an uninitialized variable
reference, which has been corrected.
* ps/maintenance-start-crash-fix:
builtin/gc: fix crash when running `git maintenance start`
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On macOS, fsmonitor can fall into a race condition that results in
a client waiting forever to be notified for an event that have
already happened. This problem has been corrected.
* jk/fsmonitor-event-listener-race-fix:
fsmonitor: initialize fs event listener before accepting clients
simple-ipc: split async server initialization and running
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Use after free and double freeing at the end in "git log -L... -p"
had been identified and fixed.
* ds/line-log-asan-fix:
line-log: protect inner strbuf from free
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Renaming a handful of variables and structure fields.
* la/trailer-info:
trailer: spread usage of "trailer_block" language
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Deprecate the "trailer_info" struct name and replace it with
"trailer_block". This is more readable, for two reasons:
1. "trailer_info" on the surface sounds like it's about a single
trailer when in reality it is a collection of one or more trailers,
and
2. the "*_block" suffix is more informative than "*_info", because it
describes a block (or region) of contiguous text which has trailers
in it, which has been parsed into the trailer_block structure.
Rename the
size_t trailer_block_start, trailer_block_end;
members of trailer_info to just "start" and "end". Rename the "info"
pointer to "trailer_block" because it is more descriptive. Update
comments accordingly.
Signed-off-by: Linus Arver <linus@ucla.edu>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
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Documentation mark-up updates.
* ja/git-add-doc-markup:
doc: git-add.txt: convert to new style convention
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Signed-off-by: Jean-Noël Avila <jn.avila@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git gc" discards any objects that are outside promisor packs that
are referred to by an object in a promisor pack, and we do not
refetch them from the promisor at runtime, resulting an unusable
repository. Work it around by including these objects in the
referring promisor pack at the receiving end of the fetch.
* jt/repack-local-promisor:
index-pack: repack local links into promisor packs
t5300: move --window clamp test next to unclamped
t0410: use from-scratch server
t0410: make test description clearer
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Teach index-pack to, when processing the objects in a pack with
--promisor specified on the CLI, repack local objects (and the local
objects that they refer to, recursively) referenced by these objects
into promisor packs.
This prevents the situation in which, when fetching from a promisor
remote, we end up with promisor objects (newly fetched) referring
to non-promisor objects (locally created prior to the fetch). This
situation may arise if the client had previously pushed objects to the
remote, for example. One issue that arises in this situation is that,
if the non-promisor objects become inaccessible except through promisor
objects (for example, if the branch pointing to them has moved to
point to the promisor object that refers to them), then GC will garbage
collect them. There are other ways to solve this, but the simplest
seems to be to enforce the invariant that we don't have promisor objects
referring to non-promisor objects.
This repacking is done from index-pack to minimize the performance
impact. During a fetch, the only time most objects are fully inflated
in memory is when their object ID is computed, so we also scan the
objects (to see which objects they refer to) during this time.
Also to minimize the performance impact, an object is calculated to be
local if it's a loose object or present in a non-promisor pack. (If it's
also in a promisor pack or referred to by an object in a promisor pack,
it is technically already a promisor object. But a misidentification
of a promisor object as a non-promisor object is relatively benign
here - we will thus repack that promisor object into a promisor pack,
duplicating it in the object store, but there is no correctness issue,
just an issue of inefficiency.)
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A subsequent commit will change the behavior of "git index-pack
--promisor", which is exercised in "build pack index for an existing
pack", causing the unclamped and clamped versions of the --window
test to exhibit different behavior. Move the clamp test closer to the
unclamped test that it references.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A subsequent commit will add functionality: when fetching from a
promisor remote, existing non-promisor objects that are ancestors of any
fetched object will be repacked into promisor packs (since if a promisor
remote has an object, it also has all its ancestors).
This means that sometimes, a fetch from a promisor remote results in 2
new promisor packs (instead of the 1 that you would expect). There is a
test that fetches a descendant of a local object from a promisor remote,
but also specifically tests that there is exactly 1 promisor pack as
a result of the fetch. This means that this test will fail when the
subsequent commit is added.
Since the ancestry of the fetched object is not the concern of this
test, make the fetched objects have no ancestry in common with the
objets in the client repo. This is done by making the server from
scratch, instead of using an existing repo that has objects in common
with the client.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 9a4c507886 (t0410: test fetching from many promisor remotes,
2019-06-25) adds some tests that demonstrate not the automatic fetching
of missing objects, but the direct fetching from another promisor remote
(configured explicitly in one test and implicitly via --filter on the
"git fetch" CLI invocation in the other test) - thus demonstrating
support for multiple promisor remotes, as described in the commit
message.
Change the test descriptions accordingly to make this clearer.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There somehow ended up too many bogus "merge X later to maint"
comments for topics that cannot be merged ever down to 'maint'
because they were forked from more recent integration branches
in the draft release notes. Remove them, as they are inviting
for mistakes later.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The MinGW compatibility layer has been taught to support POSIX
semantics for atomic renames when other process(es) have a file
opened at the destination path.
* ps/mingw-rename:
compat/mingw: support POSIX semantics for atomic renames
compat/mingw: allow deletion of most opened files
compat/mingw: share file handles created via `CreateFileW()`
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By default, Windows restricts access to files when those files have been
opened by another process. As explained in the preceding commits, these
restrictions can be loosened such that reads, writes and/or deletes of
files with open handles _are_ allowed.
While we set up those sharing flags in most relevant code paths now, we
still don't properly handle POSIX-style atomic renames in case the
target path is open. This is failure demonstrated by t0610, where one of
our tests spawns concurrent writes in a reftable-enabled repository and
expects all of them to succeed. This test fails most of the time because
the process that has acquired the "tables.list" lock is unable to rename
it into place while other processes are busy reading that file.
Windows 10 has introduced the `FILE_RENAME_FLAG_POSIX_SEMANTICS` flag
that allows us to fix this usecase [1]. When set, it is possible to
rename a file over a preexisting file even when the target file still
has handles open. Those handles must have been opened with the
`FILE_SHARE_DELETE` flag, which we have ensured in the preceding
commits.
Careful readers might have noticed that [1] does not mention the above
flag, but instead mentions `FILE_RENAME_POSIX_SEMANTICS`. This flag is
not for use with `SetFileInformationByHandle()` though, which is what we
use. And while the `FILE_RENAME_FLAG_POSIX_SEMANTICS` flag exists, it is
not documented on [2] or anywhere else as far as I can tell.
Unfortunately, we still support Windows systems older than Windows 10
that do not yet have this new flag. Our `_WIN32_WINNT` SDK version still
targets 0x0600, which is Windows Vista and later. And even though that
Windows version is out-of-support, bumping the SDK version all the way
to 0x0A00, which is Windows 10 and later, is not an option as it would
make it impossible to compile on Windows 8.1, which is still supported.
Instead, we have to manually declare the relevant infrastructure to make
this feature available and have fallback logic in place in case we run
on a Windows version that does not yet have this flag.
On another note: `mingw_rename()` has a retry loop that is used in case
deleting a file failed because it's still open in another process. One
might be pressed to not use this loop anymore when we can use POSIX
semantics. But unfortunately, we have to keep it around due to our
dependence on the `FILE_SHARE_DELETE` flag. While we know to set that
sharing flag now, other applications may not do so and may thus still
cause sharing violations when we try to rename a file.
This fixes concurrent writes in the reftable backend as demonstrated in
t0610, but may also end up fixing other usecases where Git wants to
perform renames.
[1]: https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/ntifs/ns-ntifs-_file_rename_information
[2]: https://learn.microsoft.com/en-us/windows/win32/api/winbase/ns-winbase-file_rename_info
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Reviewed-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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On Windows, we emulate open(3p) via `mingw_open()`. This function
implements handling of some platform-specific quirks that are required
to make it behave as closely as possible like open(3p) would, but for
most cases we just call the Windows-specific `_wopen()` function.
This function has a major downside though: it does not allow us to
specify the sharing mode. While there is `_wsopen()` that allows us to
pass sharing flags, those sharing flags are not the same `FILE_SHARE_*`
flags as `CreateFileW()` accepts. Instead, `_wsopen()` only allows
concurrent read- and write-access, but does not allow for concurrent
deletions. Unfortunately though, we have to allow concurrent deletions
if we want to have POSIX-style atomic renames on top of an existing file
that has open file handles.
Implement a new function that emulates open(3p) for existing files via
`CreateFileW()` such that we can set the required sharing flags.
While we have the same issue when calling open(3p) with `O_CREAT`,
implementing that mode would be more complex due to the required
permission handling. Furthermore, atomic updates via renames typically
write to exclusive lockfile and then perform the rename, and thus we
don't have to handle the case where the locked path has been created
with `O_CREATE`. So while it would be nice to have proper POSIX
semantics in all paths, we instead aim for a minimum viable fix here.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
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Unless told otherwise, Windows will keep other processes from reading,
writing and deleting files when one has an open handle that was created
via `CreateFileW()`. This behaviour can be altered via `FILE_SHARE_*`
flags:
- `FILE_SHARE_READ` allows a concurrent process to open the file for
reading.
- `FILE_SHARE_WRITE` allows a concurrent process to open the file for
writing.
- `FILE_SHARE_DELETE` allows a concurrent process to delete the file
or to replace it via an atomic rename.
This sharing mechanism is quite important in the context of Git, as we
assume POSIX semantics all over the place. But there are two callsites
where we don't pass all three of these flags:
- We don't set `FILE_SHARE_DELETE` when creating a file for appending
via `mingw_open_append()`. This makes it impossible to delete the
file from another process or to replace it via an atomic rename. The
function was introduced via d641097589 (mingw: enable atomic
O_APPEND, 2018-08-13) and has been using `FILE_SHARE_READ |
FILE_SHARE_WRITE` since the inception. There aren't any indicators
that the omission of `FILE_SHARE_DELETE` was intentional.
- We don't set any sharing flags in `mingw_utime()`, which changes the
access and modification of a file. This makes it impossible to
perform any kind of operation on this file at all from another
process. While we only open the file for a short amount of time to
update its timestamps, this still opens us up for a race condition
with another process.
`mingw_utime()` was originally implemented via `_wopen()`, which
doesn't give you full control over the sharing mode. Instead, it
calls `_wsopen()` with `_SH_DENYNO`, which ultimately translates to
`FILE_SHARE_READ | FILE_SHARE_WRITE`. It was then refactored via
090a3085bc (t/helper/test-chmtime: update mingw to support chmtime
on directories, 2022-03-02) to use `CreateFileW()`, but we stopped
setting any sharing flags at all, which seems like an unintentional
side effect. By restoring `FILE_SHARE_READ | FILE_SHARE_WRITE` we
thus fix this and get back the old behaviour of `_wopen()`.
The fact that we didn't set the equivalent of `FILE_SHARE_DELETE`
can be explained, as well: neither `_wopen()` nor `_wsopen()` allow
you to do so. So overall, it doesn't seem intentional that we didn't
allow deletions here, either.
Adapt both of these callsites to pass all three sharing flags.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
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A regression where commit objects missing from a commit-graph can
cause an infinite loop when doing a fetch in a partial clone has
been fixed.
* jt/commit-graph-missing:
fetch-pack: die if in commit graph but not obj db
Revert "fetch-pack: add a deref_without_lazy_fetch_extended()"
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When fetching, there is a step in which sought objects are first checked
against the local repository; only objects that are not in the local
repository are then fetched. This check first looks up the commit graph
file, and returns "present" if the object is in there.
However, the action of first looking up the commit graph file is not
done everywhere in Git, especially if the type of the object at the time
of lookup is not known. This means that in a repo corruption situation,
a user may encounter an "object missing" error, attempt to fetch it, and
still encounter the same error later when they reattempt their original
action, because the object is present in the commit graph file but not in
the object DB.
Therefore, make it a fatal error when this occurs. (Note that we cannot
proceed to include this object in the list of objects to be fetched
without changing at least the fetch negotiation code: what would happen
is that the client will send "want X" and "have X" and when I tested
at $DAYJOB with a work server that uses JGit, the server reasonably
returned an empty packfile. And changing the fetch negotiation code to
only use the object DB when deciding what to report as "have" would be
an unnecessary slowdown, I think.)
This was discovered when a lazy fetch of a missing commit completed with
nothing actually fetched, and the writing of the commit graph file after
every fetch then attempted to read said missing commit, triggering a
lazy fetch of said missing commit, resulting in an infinite loop with no
user-visible indication (until they check the list of processes running
on their computer). With this fix, there is no infinite loop. Note that
although the repo corruption we discovered was caused by a bug in GC in
a partial clone, the behavior that this patch teaches Git to warn about
applies to any repo with commit graph enabled and with a missing commit,
whether it is a partial clone or not.
t5330, introduced in 3a1ea94a49 (commit-graph.c: no lazy fetch in
lookup_commit_in_graph(), 2022-07-01), tests that an interaction between
fetch and the commit graph does not cause an infinite loop. This patch
changes the exit code in that situation, so that test had to be changed.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This reverts commit a6e65fb39caf18259c660c1c7910d5bf80bc15cb.
This revert simplifies the next patch in this patch set.
The commit message of that commit mentions that the new function "will
be used for the bundle-uri client in a subsequent commit", but it seems
that eventually it wasn't used.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "--shallow-exclude=<ref>" option to various history transfer
commands takes a ref, not an arbitrary revision.
* en/shallow-exclude-takes-a-ref-fix:
doc: correct misleading descriptions for --shallow-exclude
upload-pack: fix ambiguous error message
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The documentation for the --shallow-exclude option to clone/fetch/etc.
claims that the option takes a revision, but it does not. As per
upload-pack.c's process_deepen_not(), it passes the option to
expand_ref() and dies if it does not find exactly one ref matching the
name passed. Further, this has always been the case ever since these
options were introduced by the commits merged in a460ea4a3cb1 (Merge
branch 'nd/shallow-deepen', 2016-10-10). Fix the documentation to
match the implementation.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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upload-pack.c takes any --shallow-exclude argument(s) from
clone/fetch/etc. and passes them through expand_ref(). If it does not
get back exactly one ref from the call to expand_ref(), it will die with
the following error:
fatal: git upload-pack: ambiguous deepen-not: %s
Given that the documentation suggests to users that --shallow-exclude
accepts a revision rather than a ref (which will be corrected in a
subsequent commit), users may try to pass a revision. In such a case,
expand_ref() will return 0 matches, but the error message we print will
be misleading since "ambiguous" suggests there are multiple matches.
Provide a clearer error message for such a case.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test modernization.
* ak/t1016-style:
t1016: clean up style
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Adhere to Documentation/CodingGuidelines:
- Whitespace and redirect operator.
- Case arms indentation.
- Tabs for indentation.
Signed-off-by: Andrew Kreimer <algonell@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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More leakfixes.
* ps/leakfixes-part-9: (22 commits)
list-objects-filter-options: work around reported leak on error
builtin/merge: release output buffer after performing merge
dir: fix leak when parsing "status.showUntrackedFiles"
t/helper: fix leaking buffer in "dump-untracked-cache"
t/helper: stop re-initialization of `the_repository`
sparse-index: correctly free EWAH contents
dir: release untracked cache data
combine-diff: fix leaking lost lines
builtin/tag: fix leaking key ID on failure to sign
transport-helper: fix leaking import/export marks
builtin/commit: fix leaking cleanup config
trailer: fix leaking strbufs when formatting trailers
trailer: fix leaking trailer values
builtin/commit: fix leaking change data contents
upload-pack: fix leaking URI protocols
pretty: clear signature check
diff-lib: fix leaking diffopts in `do_diff_cache()`
revision: fix leaking bloom filters
builtin/grep: fix leak with `--max-count=0`
grep: fix leak in `grep_splice_or()`
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This one is a little bit more curious. In t6112, we have a test that
exercises the `git rev-list --filter` option with invalid filters. We
execute git-rev-list(1) via `test_must_fail`, which means that we check
for leaks even though Git exits with an error code. This causes the
following leak:
Direct leak of 27 byte(s) in 1 object(s) allocated from:
#0 0x5555555e6946 in realloc.part.0 lsan_interceptors.cpp.o
#1 0x5555558fb4b6 in xrealloc wrapper.c:137:8
#2 0x5555558b6e06 in strbuf_grow strbuf.c:112:2
#3 0x5555558b7550 in strbuf_add strbuf.c:311:2
#4 0x5555557c1a88 in strbuf_addstr strbuf.h:310:2
#5 0x5555557c1d4c in parse_list_objects_filter list-objects-filter-options.c:261:3
#6 0x555555885ead in handle_revision_pseudo_opt revision.c:2899:3
#7 0x555555884e20 in setup_revisions revision.c:3014:11
#8 0x5555556c4b42 in cmd_rev_list builtin/rev-list.c:588:9
#9 0x5555555ec5e3 in run_builtin git.c:483:11
#10 0x5555555eb1e4 in handle_builtin git.c:749:13
#11 0x5555555ec001 in run_argv git.c:819:4
#12 0x5555555eaf94 in cmd_main git.c:954:19
#13 0x5555556fd569 in main common-main.c:64:11
#14 0x7ffff7ca714d in __libc_start_call_main (.../lib/libc.so.6+0x2a14d)
#15 0x7ffff7ca7208 in __libc_start_main@GLIBC_2.2.5 (.../libc.so.6+0x2a208)
#16 0x5555555ad064 in _start (git+0x59064)
This leak is valid, as we call `die()` and do not clean up the memory at
all. But what's curious is that this is the only leak reported, because
we don't clean up any other allocated memory, either, and I have no idea
why the leak sanitizer treats this buffer specially.
In any case, we can work around the leak by shuffling things around a
bit. Instead of calling `gently_parse_list_objects_filter()` and dying
after we have modified the filter spec, we simply do so beforehand. Like
this we don't allocate the buffer in the error case, which makes the
reported leak go away.
It's not pretty, but it manages to make t6112 leak free.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `obuf` member of `struct merge_options` is used to buffer output in
some cases. In order to not discard its allocated memory we only release
its contents in `merge_finalize()` when we're not currently recursing
into a subtree.
This results in some situations where we seemingly do not release the
buffer reliably. We thus have calls to `strbuf_release()` for this
buffer scattered across the codebase. But we're missing one callsite in
git-merge(1), which causes a memory leak.
We should ideally refactor this interface so that callers don't have to
know about any such internals. But for now, paper over the issue by
adding one more `strbuf_release()` call.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We use `repo_config_get_string()` to read "status.showUntrackedFiles"
from the config subsystem. This function allocates the result, but we
never free the result after parsing it.
The value never leaves the scope of the calling function, so refactor it
to instead use `repo_config_get_string_tmp()`, which does not hand over
ownership to the caller.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We never release the local `struct strbuf base` buffer, thus leaking
memory. Fix this leak.
This leak is exposed by t7063, but plugging it alone does not make the
whole test suite pass.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While "common-main.c" already initializes `the_repository` for us, we do
so a second time in the "read-cache" test helper. This causes a memory
leak because the old repository's contents isn't released.
Stop calling `initialize_repository()` to plug this leak.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While we free the `fsmonitor_dirty` member of `struct index_state`, we
do not free the contents of that EWAH. Do so by using `ewah_free()`
instead of `FREE_AND_NULL()`.
This leak is exposed by t7519, but plugging it alone does not make the
test suite pass.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are several cases where we invalidate untracked cache directory
entries where we do not free the underlying data, but reset the number
of entries. This causes us to leak memory because `free_untracked()`
will not iterate over any potential entries which we still had in the
array.
Fix this issue by freeing old entries. The leak is exposed by t7519, but
plugging it alone does not make the whole test suite pass.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `cnt` variable tracks the number of lines in a patch diff. It can
happen though that there are no newlines, in which case we'd still end
up allocating our array of `sline`s. In fact, we always allocate it with
`cnt + 2` entries: one extra entry for the deletion hunk at the end, and
another entry that we don't seem to ever populate at all but acts as a
kind of sentinel value.
When we loop through the array to clear it at the end of this function
we only loop until `lno < cnt`, and thus we may not end up releasing
whatever the two extra `sline`s contain. While that shouldn't matter for
the sentinel value, it does matter for the extra deletion hunk sline.
Regardless of that, plug this memory leak by releasing both extra
entries, which makes the logic a bit easier to reason about.
While at it, fix the formatting of a local comment, which incidentally
also provides the necessary context for why we overallocate the `sline`
array.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We do not free the key ID when signing a tag fails. Do so by using
the common exit path.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix leaking import and export marks for transport helpers.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The cleanup string set by the config is leaking when it is being
overridden by an option. Fix this by tracking these via two separate
variables such that we can free the old value.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When formatting trailer lines we iterate through each of the trailers
and munge their respective token/value pairs according to the trailer
options. When formatting a trailer that has its `item->token` pointer
set we perform the munging in two local buffers. In the case where we
figure out that the value is empty and `trim_empty` is set we just skip
over the trailer item. But the buffers are local to the loop and we
don't release their contents, leading to a memory leak.
Plug this leak by lifting the buffers outside of the loop and releasing
them on function return. This fixes the memory leaks, but also optimizes
the loop as we don't have to reallocate the buffers on every single
iteration.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix leaking trailer values when replacing the value with a command or
when the token value is empty.
This leak is exposed by t7513, but plugging it does not make the whole
test suite pass.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While we free the worktree change data, we never free its contents. Fix
this.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We don't clear `struct upload_pack::uri_protocols`, which causes a
memory leak. Fix this.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The signature check in the formatting context is never getting released.
Fix this to plug the resulting memory leak.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In `do_diff_cache()` we initialize a new `rev_info` and then overwrite
its `diffopt` with a user-provided set of options. This can leak memory
because `repo_init_revisions()` may end up allocating memory for the
`diffopt` itself depending on the configuration. And since that field is
overwritten we won't ever free it.
Plug the memory leak by releasing the diffopts before we overwrite them.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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