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Reduce code duplication by calling decimal_width() to count the digits
in the number of commits instead of calculating it locally.
It also has the advantage of returning int, which is the exact type
expected by the printf()-like function strbuf_addf() for field width
arguments.
Additionally, decimal_width() supports numbers bigger than 1410065407,
which is (hopefully) just a theoretical advantage.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This complements 64a6dd8ffc (refs: implement removal of ref storages,
2024-06-06).
Signed-off-by: Sven Strickroth <email@cs-ware.de>
Acked-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Git stores only canonical modes for blobs. So for a regular file, we
care about only "100644" or "100755" (depending only on the executable
bit), but never modes where the group or other permissions are more
exotic. So never "100664", "100700", etc. When a file in the working
tree has such a mode, we quietly turn it into one of the two canonical
modes, and that's what is stored both in the index and in tree objects.
However, we don't canonicalize modes we read from incoming patches in
git-apply. These may appear in a few lines:
- "old mode" / "new mode" lines for mode changes
- "new file mode" lines for newly created files
- "deleted file mode" for removing files
For "new mode" and for "new file mode", this is harmless. The patch is
asking the result to have a certain mode, but:
- when we add an index entry (for --index or --cached), it is
canonicalized as we create the entry, via create_ce_mode().
- for a working tree file, try_create_file() passes either 0777 or
0666 to open(), so what you get depends only on your umask, not any
other bits (aside from the executable bit) in the original mode.
However, for "old mode" and "deleted file mode", there is a minor
annoyance. We compare the patch's expected preimage mode with the
current state. But that current state is always going to be a canonical
mode itself:
- updating an index entry via --cached will have the canonical mode in
the index
- for updating a working tree file, check_preimage() runs the mode
through ce_mode_from_stat(), which does the usual canonicalization
So if the patch feeds a non-canonical mode, it's impossible for it to
match, and we will always complain with something like:
file has type 100644, expected 100664
Since this is just a warning, the operation proceeds, but it's
confusing and annoying.
These cases should be pretty rare in practice. Git would never produce a
patch with non-canonical modes itself (since it doesn't store them).
And while we do accept patches from other programs, all of those lines
were invented by Git. So you'd need a program trying to be Git
compatible, but not handling canonicalization the same way. Reportedly
"quilt" is such a program.
We should canonicalize the modes as we read them so that the user never
sees the useless warning.
A few notes on the tests:
- I've covered instances of all lines for completeness, even though
the "new mode" / "new file mode" ones behave OK currently.
- the tests apply patches to both the index and working tree, and
check the result of both. Again, we know that all of these paths
canonicalize anyway, but it's giving us extra coverage (although we
are even less likely to have such a bug now since we canonicalize up
front).
- the test patches are missing "index" lines, which is also something
Git would never produce. But they don't matter for the test, they do
match the case from quilt we saw in the wild, and they avoid some
sha1/sha256 complexity.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the current testing setup for infix_walk(), the following
properties of an infix traversal of a tree remain untested:
- every node of the tree must be visited
- every node must be visited exactly once
In fact, only the property 'traversal in increasing order' is tested.
Modify test_infix_walk() to check for all the properties above.
This can be achieved by storing the nodes' keys linearly, in a nullified
buffer, as we visit them and then checking the input keys against this
buffer in increasing order. By checking that the element just after
the last input key is 'NULL' in the output buffer, we ensure that
every node is traversed exactly once.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the current testing setup for tree_search(), the case for
non-existent key is not exercised. Improve this by adding a
test-case for the same.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the current testing setup, tests for both tree_search() and
infix_walk() defined by reftable/tree.{c, h} are performed by
a single test function, test_tree(). Split tree_test() into
test_tree_search() and test_infix_walk() responsible for
independently testing tree_search() and infix_walk() respectively.
This improves the overall readability of the test file as well as
simplifies debugging.
Note that the last parameter in the tree_search() functiom is
'int insert' which when set, inserts the key if it is not found
in the tree. Otherwise, the function returns NULL for such cases.
While at it, use 'func' to pass function pointers and not '&func'.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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reftable/tree_test.c exercises the functions defined in
reftable/tree.{c, h}. Migrate reftable/tree_test.c to the unit
testing framework. Migration involves refactoring the tests to use
the unit testing framework instead of reftable's test framework and
renaming the tests to align with unit-tests' standards.
Also add a comment to help understand the test routine.
Note that this commit mostly moves the test from reftable/ to
t/unit-tests/ and most of the refactoring is performed by the
trailing commits.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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According to Documentation/CodingGuidelines, single-line control-flow
statements must omit curly braces (except for some special cases).
Make reftable/tree.c adhere to this guideline.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is possible that stat information of tracked files is modified without
actually modifying the content. Plumbing commands would detect such files
as modified, so that Git GUI runs `git update-info --refresh` in order to
synchronize the cached stat info with the reality. However, this can be
an expensive operation in large repositories. As remediation,
e534f3a88676 (git-gui: Allow the user to disable update-index --refresh
during rescan, 2006-11-07) introduced an option to skip the expensive
part.
The option was named "trust file modification timestamp". But the catch
is that sometimes file timestamps can't be trusted. In this case, a file
would remain listed in Unstaged Changes although there are no changes.
So 16403d0b1f9d (git-gui: Refresh a file if it has an empty diff,
2006-11-11) introduced a popup message informing the user about the
situation and then removed the file from the Unstaged Changes list.
Now users had to click away the message box for every file that was
stat-dirty. Under the assumption that a file in such a state is not
the only one, 124355d32c06 (git-gui: Always start a rescan on an empty
diff, 2007-01-22) introduced a forced (potentially expensive) refresh
that would de-list all stat-dirty files after the first notification was
dismissed.
Along came 6c510bee2013 (Lazy man's auto-CRLF, 2007-02-13) in Git. It
introduced a new case where a file in the worktree can have no essential
differences to the staged version, but still be detected as modified by
plumbing commands. This time, however, the index cannot be synchronized
fully by `git update-index --refresh`, so that the file remains listed
in Unstaged Changes until it is staged manually.
Needless to say that the message box now becomes an annoyance, because
it must be dismissed every time an affected file is selected, and the
file remains listed nevertheless.
Remove the message box. Write the notice that no differences were found
in the diff panel instead. Also include a link that, when clicked,
initiates the rescan. With this scheme, the rescan does not happen
automatically anymore, but requires an additional click. (This is now
two clicks in total for users who encounter stat-dirty files after
enabling the "trust file modification timestamps" option.) However,
users whom the rescan does not help (autocrlf-related dirty files) save
half the clicks because there is no message box to dismiss.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
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Supporting many platforms is only possible when we have the right tools to
ensure that support.
Teach platform maintainers how they can help us to help them, by
explaining what kind of tooling support we would like to have, and what
level of support becomes available as a result. Provide examples so that
platform maintainers can see what we're asking for in practice.
With this policy in place, we can make changes with stronger assurance
that we are not breaking anybody we promised not to. Instead, we can
feel confident that our existing testing and integration practices
protect those who care from breakage.
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In c8f815c208 (refs: remove functions without ref store, 2024-05-07), we
have removed functions of the refs subsystem that do not take a ref
store as input parameter. In order to make it easier for folks to figure
out how to replace calls to such functions in in-flight patch series, we
kept their definitions around in an ifdeffed block.
Now that Git v2.46 is out, it is rather unlikely that anybody still has
references to these old functions in their unreleased patches. Let's
thus drop them.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The documentation for `http.proxy` describes that option, and the
environment variables it overrides, as supporting "the syntax understood
by curl". curl allows SOCKS proxies to use a path to a Unix domain
socket, like `socks5h://localhost/path/to/socket.sock`. Git should
therefore include, if present, the path part of the proxy URL in what it
passes to libcurl.
Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Ryan Hendrickson <ryan.hendrickson@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In c8aed5e8da (repository: stop setting SHA1 as the default object hash,
2024-05-07), we have stopped setting the default hash algorithm for
`the_repository`. Consequently, code that relies on `the_hash_algo` will
now crash when it hasn't explicitly been initialized, which may be the
case when running outside of a Git repository.
It was reported that git-ls-remote(1) may crash in such a way when using
a remote helper that advertises refspecs. This is because the refspec
announced by the helper will get parsed during capability negotiation.
At that point we haven't yet figured out what object format the remote
uses though, so when run outside of a repository then we will fail.
The course of action is somewhat dubious in the first place. Ideally, we
should only parse object IDs once we have asked the remote helper for
the object format. And if the helper didn't announce the "object-format"
capability, then we should always assume SHA256. But instead, we used to
take either SHA1 if there was no repository, or we used the hash of the
local repository, which is wrong.
Arguably though, crashing hard may not be in the best interest of our
users, either. So while the old behaviour was buggy, let's restore it
for now as a short-term fix. We should eventually revisit, potentially
by deferring the point in time when we parse the refspec until after we
have figured out the remote's object hash.
Reported-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The actual file is copied out to /tmp, presumably so that the tester
can inspect it after the test is done, which may have been a useful
debugging aid.
But in the final shape of the test suite, such a code should not
exist. We cannot even assume that we are allowed to write into /tmp
(our TMPDIR may not even be pointing at it) or read from it for that
matter.
Noticed-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When using `--fixed-value` with a key whose value is left empty (implied
as being "true"), 'git config' may crash when invoked like either of:
$ git config set --file=config --value=value --fixed-value \
section.key pattern
$ git config --file=config --fixed-value section.key value pattern
The original bugreport[1] bisects to 00bbdde141 (builtin/config:
introduce "set" subcommand, 2024-05-06), which is a red-herring, since
the original bugreport uses the new 'git config set' invocation.
The behavior likely bisects back to c90702a1f6 (config: plumb
--fixed-value into config API, 2020-11-25), which introduces the new
--fixed-value option in the first place.
Looking at the relevant frame from a failed process's coredump, the
crash appears in config.c::matches() like so:
(gdb) up
#1 0x000055b3e8b06022 in matches (key=0x55b3ea894360 "section.key", value=0x0,
store=0x7ffe99076eb0) at config.c:2884
2884 return !strcmp(store->fixed_value, value);
where we are trying to compare the `--fixed-value` argument to `value`,
which is NULL.
Avoid attempting to match `--fixed-value` for configuration keys with no
explicit value. A future patch could consider the empty value to mean
"true", "yes", "on", etc. when invoked with `--type=bool`, but let's
punt on that for now in the name of avoiding the segfault.
[1]: https://lore.kernel.org/git/CANrWfmTek1xErBLrnoyhHN+gWU+rw14y6SQ+abZyzGoaBjmiKA@mail.gmail.com/
Reported-by: Han Jiang <jhcarl0814@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.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 few descriptions in "git show-ref -h" have been clarified.
* as/show-ref-option-help-update:
show-ref: improve short help messages of options
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The reviewing guidelines document now explicitly encourages people
to give positive reviews and how.
* jc/doc-reviewing-guidelines-positive-reviews:
ReviewingGuidelines: encourage positive reviews more
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"git rebase --help" referred to "offset" (the difference between
the location a change was taken from and the change gets replaced)
incorrectly and called it "fuzz", which has been corrected.
* jc/doc-rebase-fuzz-vs-offset-fix:
doc: difference in location to apply is "offset", not "fuzz"
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merged_iter_pqueue_top() as defined by reftable/pq.{c, h} returns
the element at the top of a priority-queue's heap without removing
it. Since there are no tests for this function in the existing
setup, add tests for the same.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When comparing two entries, the priority queue as defined by
reftable/pq.{c, h} first compares the entries on the basis of
their ref-record's keys. If the keys turn out to be equal, the
comparison is then made on the basis of their update indices
(which are never equal).
In the current testing setup, only the case for comparison on
the basis of ref-record's keys is exercised. Add a test for
index-based comparison as well. Rename the existing test to
reflect its nature of only testing record-based comparison.
While at it, replace 'strbuf_detach' with 'xstrfmt' to assign
refnames in the existing test. This makes the test conciser.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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merged_iter_pqueue_check() checks the validity of a priority queue
represented by a merged_iter_pqueue struct by asserting the
parent-child relation in the struct's heap. Explicity passing a
struct to this function means a copy of the entire struct is created,
which is inefficient.
Make the function accept a pointer to the struct instead. This is
safe to do since the function doesn't modify the struct in any way.
Make the function parameter 'const' to assert immutability.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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merged_iter_pqueue_check() is a function previously defined in
reftable/pq_test.c (now t/unit-tests/t-reftable-pq.c) and used in
the testing of a priority queue as defined by reftable/pq.{c, h}.
As such, this function is only called by reftable/pq_test.c and it
makes little sense to expose it to non-testing code via reftable/pq.h.
Hence, make this function static and remove its prototype from
reftable/pq.h.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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reftable/pq_test.c exercises a priority queue defined by
reftable/pq.{c, h}. Migrate reftable/pq_test.c to the unit testing
framework. Migration involves refactoring the tests to use the unit
testing framework instead of reftable's test framework, and
renaming the tests to align with unit-tests' standards.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The variables 'i', 'j', 'k' and 'min' are used as indices for
'pq->heap', which is an array. Additionally, 'pq->len' is of
type 'size_t' and is often used to assign values to these
variables. Hence, change the type of these variables from 'int'
to 'size_t'.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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According to Documentation/CodingGuidelines, control-flow statements
with a single line as their body must omit curly braces. Make
reftable/pq.c conform to this guideline. Besides that, remove
unnecessary newlines and variable assignment.
Mentored-by: Patrick Steinhardt <ps@pks.im>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Chandra Pratap <chandrapratap3519@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This patch fixes a case where git-credential-osxkeychain might output
uninitialized bytes to stdout.
We need to get the username string from a system API using
CFStringGetCString(). To do that, we get the max size for the string
from CFStringGetMaximumSizeForEncoding(), allocate a buffer based on
that, and then read into it. But then we print the entire buffer to
stdout, including the trailing NUL and any extra bytes which were not
needed. Instead, we should stop at the NUL.
This code comes from 9abe31f5f1 (osxkeychain: replace deprecated
SecKeychain API, 2024-02-17). The bug was probably overlooked back then
because this code is only used as a fallback when we can't get the
string via CFStringGetCStringPtr(). According to Apple's documentation:
Whether or not this function returns a valid pointer or NULL depends
on many factors, all of which depend on how the string was created and
its properties.
So it's not clear how we could make a test for this, and we'll have to
rely on manually testing on a system that triggered the bug in the first
place.
Reported-by: Hong Jiang <ilford@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Tested-by: Hong Jiang <ilford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We don't free the local `stack` commit list that we use to compute
reachability of multiple commits at once. Do so.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In `read_convert_config()`, we end up reading some string values into
variables. We don't free any potentially-existing old values though,
which will result in a memory leak in case the same key has been defined
multiple times.
Fix those leaks.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When filtering files during delayed checkout, we pass a string list to
`async_query_available_blobs()`. This list is initialized with NODUP,
and thus inserted strings will not be owned by the list. In the latter
function we then try to hand over ownership by passing an `xstrup()`'d
value to `string_list_insert()`. But this is not how this works: a NODUP
list does not take ownership of allocated strings and will never free
them for the caller.
Fix this issue by initializing the list as `DUP` instead and dropping
the explicit call to `xstrdup()`. This is okay to do given that this is
the single callsite of `async_query_available_blobs()`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When calling `get_oid_oneline()`, we pass in a `struct commit_list` that
gets modified by the function. This creates a weird situation where the
commit list may sometimes be empty after returning, but sometimes it
will continue to carry additional commits. In those cases the remainder
of the list leaks.
Ultimately, the design where we only pass partial ownership to
`get_oid_oneline()` feels shoddy. Refactor the code such that we only
pass a constant pointer to the list, creating a local copy as needed.
Callers are thus always responsible for freeing the commit list, which
then allows us to plug a bunch of memory leaks.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The test-repository test helper zeroes out `the_repository` such that it
can be sure that our codebase only ends up using the supplied repository
that we initialize in the respective helper functions. This does cause
memory leaks though as the data that `the_repository` has been holding
onto is not referenced anymore.
Fix this by calling `repo_clear()` instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two trivial leaks in git-credential-cache(1):
- We leak the child process in `spawn_daemon()`. As we do not call
`finish_command()` and instead let the created process daemonize, we
have to clear the process manually.
- We do not free the computed socket path in case it wasn't given via
`--socket=`.
Plug both of these memory leaks.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are several heuristics that git-worktree(1) uses to derive the
name of the newly created branch when not given explicitly. These
heuristics all allocate a new string, but we only end up freeing that
string in a subset of cases.
Fix the remaining cases where we didn't yet free the derived branch
names. While at it, also free `opt_track`, which is being populated via
an `OPT_PASSTHRU()`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There is a trivial memory leak in git-shortlog(1). Fix it.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are multiple trivial memory leaks in git-rerere(1). Fix those.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We never free credentials read by the credential store, leading to a
memory leak. Plug it.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are several memory leaks in git-show-branch(1). Fix them.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `--parseopt` mode allows shell scripts to have the same option
parsing mode as we have in C builtins. It soaks up a set of option
descriptions via stdin and massages them into proper `struct option`s
that we can then use to parse a set of arguments.
We only partially free those options when done though, creating a memory
leak. Interestingly, we only end up free'ing the first option's help,
which is of course wrong.
Fix this by freeing all option's help fields as well as their `argh`
fields to plug this memory leak.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are multiple trivial memory leaks in git-stash(1). Fix those.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are multiple trivial memory leaks in git-remote(1). Fix those.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `struct string_list branch_list` is declared as `NODUP`, which makes
it not copy strings inserted into it. This causes memory leaks though,
as this means it also won't be responsible for _freeing_ inserted
strings. Thus, every branch we add to this will leak.
Fix this by marking the list as `DUP` instead and free the local copy we
have of the variable.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Users can pass patterns to git-ls-remote(1), which allows them to filter
the list of printed references. We assemble those patterns into an array
and prefix them with "*/", but never free either the array nor the
allocated strings.
Refactor the code to use a `struct strvec` instead of manually tracking
the strings in an array. Like this, we can easily use `strvec_clear()`
to release both the vector and the contained string for us, plugging the
leak.
Helped-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `rev` buffer in `is_tip_reachable()` is being populated with the
output of git-rev-list(1) -- if either the command fails or the buffer
contains any data, then the input commit is not reachable.
The buffer isn't used for anything else, but neither do we free it,
causing 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 submodule helper supports a `--depth` parameter for both its "add"
and "clone" subcommands, which in both cases end up being forwarded to
git-clone(1). But while the former subcommand uses an `OPT_INTEGER()` to
parse the depth, the latter uses `OPT_STRING()`. Consequently, it is
possible to pass non-integer input to "--depth" when calling the "clone"
subcommand, where the value will then ultimately cause git-clone(1) to
bail out.
Besides the fact that the parameter verification should happen earlier,
the submodule helper infrastructure also internally tracks the depth via
a string. This requires us to convert the integer in the "add"
subcommand into an allocated string, and this string ultimately leaks.
Refactor the code to consistently track the clone depth as an integer.
This plugs the memory leak, simplifies the code and allows us to use
`OPT_INTEGER()` instead of `OPT_STRING()`, validating the input before
we shell out to git--clone(1).
Original-patch-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are several structures that we don't release after
`cmd_name_rev()` is done. Plug those leaks.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We never free the `struct strvec args` variable in `describe_blob()`,
which thus 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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When running git-describe(1) with `--dirty`, we will set up a `struct
rev_info` with arguments for git-diff-index(1). The way we assemble the
arguments it causes two memory leaks though:
- We never release the `struct strvec`.
- `setup_revisions()` may end up removing some entries from the
`strvec`, which we wouldn't free even if we released the struct.
While we could plug those leaks, this is ultimately unnecessary as the
arguments we pass are part of a static array anyway. So instead,
refactor the code to drop the `struct strvec` and just pass this static
array directly.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When calling `git describe --contains=`, we end up invoking
`cmd_name_rev()` with some munged argv array. This array may contain
allocated strings and furthermore will likely be modified by the called
function. This results in two memory leaks:
- First, we leak the array that we use to assemble the arguments.
- Second, we leak the allocated strings that we may have put into the
array.
Fix those leaks by creating a separate copy of the array that we can
hand over to `cmd_name_rev()`. This allows us to free all strings
contained in the `strvec`, as the original vector will not be modified
anymore.
Furthermore, free both the `strvec` and the copied array to fix the
first memory leak.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When calling `make_cover_letter()` without a branch name, we try to
derive the branch name by calling `find_branch_name()`. But while this
function returns an allocated string, we never free the result and thus
have 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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