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"git shortlog -n" relied on the underlying qsort() to be stable,
which shouldn't have. Fixed.
* js/shortlog-sort-stably:
shortlog: use a stable sort
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When sorting the output of `git shortlog` by count, a list of authors in
alphabetical order is then sorted by contribution count. Obviously, the
idea is to maintain the alphabetical order for items with identical
contribution count.
At the moment, this job is performed by `qsort()`. As that function is
not guaranteed to implement a stable sort algorithm, this can lead to
inconsistent and/or surprising behavior: items with identical
contribution count could lose their alphabetical sub-order.
The `qsort()` in MS Visual C's runtime does _not_ implement a stable
sort algorithm, and under certain circumstances this even causes a test
failure in t4201.21 "shortlog can match multiple groups", where two
authors both are listed with 2 contributions, and are listed in inverse
alphabetical order.
Let's instead use the stable sort provided by `git_stable_qsort()` to
avoid this inconsistency.
This is a companion to 2049b8dc65 (diffcore_rename(): use a stable sort,
2019-09-30).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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An earlier attempt to plug leaks placed a clean-up label to jump to
at a bogus place, which as been corrected.
* jk/diff-files-cleanup-fix:
diff-files: move misplaced cleanup label
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Commit 0139c58ab9 (revisions API users: add "goto cleanup" for
release_revisions(), 2022-04-13) converted an early return in
cmd_diff_files() into a goto. But it put the cleanup label too early: if
read_cache_preload() returns an error, we'll set result to "-1", but
then jump to calling run_diff_files(), overwriting our result.
We should jump past the call to run_diff_files(). Likewise, we should go
past diff_result_code(), which is expecting to see a code from an actual
diff, not a negative error code.
In practice, I suspect this bug cannot actually be triggered, because
read_cache_preload() does not seem to ever return an error. Its return
value (eventually) comes from do_read_index(), which gives the number of
cache entries found, and calls die() on error. Still, it makes sense to
fix the inadvertent change from 0139c58ab9 first, and we can look into
the overall error handling of read_cache() separately (which is present
in many other callsites).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git clone" from a repository with some ref whose HEAD is unborn
did not set the HEAD in the resulting repository correctly, which
has been corrected.
* jk/clone-unborn-confusion:
clone: move unborn head creation to update_head()
clone: use remote branch if it matches default HEAD
clone: propagate empty remote HEAD even with other branches
clone: drop extra newline from warning message
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Prior to 4f37d45706 (clone: respect remote unborn HEAD, 2021-02-05),
creation of the local HEAD was always done in update_head(). That commit
added code to handle an unborn head in an empty repository, and just did
all symref creation and config setup there.
This makes the code flow a little bit confusing, especially as new
corner cases have been covered (like the previous commit to match our
default branch name to a non-HEAD remote branch).
Let's move the creation of the unborn symref into update_head(). This
matches the other HEAD-creation cases, and now the logic is consistently
separated: the main cmd_clone() function only examines the situation and
sets variables based on what it finds, and update_head() actually
performs the update.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Usually clone tries to use the same local HEAD as the remote (unless the
user has given --branch explicitly). Even if the remote HEAD is detached
or unborn, we can detect those situations with modern versions of Git.
If the remote is too old to support the "unborn" extension (or it has
been disabled via config), then we can't know the name of the remote's
unborn HEAD, and we fall back whatever the local default branch name is
configured to be.
But that leads to one weird corner case. It's rare because it needs a
number of factors:
- the remote has an unborn HEAD
- the remote is too old to support "unborn", or has disabled it
- the remote has another branch "foo"
- the local default branch name is "foo"
In that case you end up with a local clone on an unborn "foo" branch,
disconnected completely from the remote's "foo". This is rare in
practice, but the result is quite confusing.
When choosing "foo", we can double check whether the remote has such a
name, and if so, start our local "foo" at the same spot, rather than
making it unborn.
Note that this causes a test failure in t5605, which is cloning from a
bundle that doesn't contain HEAD (so it behaves like a remote that
doesn't support "unborn"), but has a single "main" branch. That test
expects that we end up in the weird "unborn main" case, where we don't
actually check out the remote branch of the same name. Even though we
have to update the test, this seems like an argument in favor of this
patch: checking out main is what I'd expect from such a bundle.
So this patch updates the test for the new behavior and adds an adjacent
one that checks what the original was going for: if there's no HEAD and
the bundle _doesn't_ have a branch that matches our local default name,
then we end up with nothing checked out.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Unless "--branch" was given, clone generally tries to match the local
HEAD to the remote one. For most repositories, this is easy: the remote
tells us which branch HEAD was pointing to, and we call our local
checkout() function on that branch.
When cloning an empty repository, it's a little more tricky: we have
special code that checks the transport's "unborn" extension, or falls back
to our local idea of what the default branch should be. In either case,
we point the new HEAD to that, and set up the branch.* config.
But that leaves one case unhandled: when the remote repository _isn't_
empty, but its HEAD is unborn. The checkout() function is smart enough
to realize we didn't fetch the remote HEAD and it bails with a warning.
But we'll have ignored any information the remote gave us via the unborn
extension. This leads to nonsense outcomes:
- If the remote has its HEAD pointing to an unborn "foo" and contains
another branch "bar", cloning will get branch "bar" but leave the
local HEAD pointing at "master" (or whatever our local default is),
which is useless. The project does not use "master" as a branch.
- Worse, if the other branch "bar" is instead called "master" (but
again, the remote HEAD is not pointing to it), then we end up with a
local unborn branch "master", which is not connected to the remote
"master" (it shares no history, and there's no branch.* config).
Instead, we should try to use the remote's HEAD, even if its unborn, to
be consistent with the other cases.
The reason this case was missed is that cmd_clone() handles empty and
non-empty repositories on two different sides of a conditional:
if (we have any refs) {
fetch refs;
check for --branch;
otherwise, try to point our head at remote head;
otherwise, our head is NULL;
} else {
check for --branch;
otherwise, try to use "unborn" extension;
otherwise, fall back to our default name name;
}
So the smallest change would be to repeat the "unborn" logic at the end
of the first block. But we can note some other overlaps and
inconsistencies:
- both sides have to handle --branch (though note that it's always an
error for the empty repo case, since an empty repo by definition
does not have a matching branch)
- the fall back to the default name is much more explicit in the
empty-repo case. The non-empty case eventually ends up bailing
from checkout() with a warning, which produces a similar result, but
fails to set up the branch config we do in the empty case.
So let's pull the HEAD setup out of this conditional entirely. This
de-duplicates some of the code and the result is easy to follow, because
helper functions like find_ref_by_name() do the right thing even in the
empty-repo case (i.e., by returning NULL).
There are two subtleties:
- for a remote with a detached HEAD, it will advertise an oid for HEAD
(which we store in our "remote_head" variable), but we won't find a
matching refname (so our "remote_head_points_at" is NULL). In this
case we make a local detached HEAD to match. Right now this happens
implicitly by reaching update_head() with a non-NULL remote_head
(since we skip all of the unborn-fallback). We'll now need to
account for it explicitly before doing the fallback.
- for an empty repo, we issue a warning to the user that they've
cloned an empty repo. The text of that warning doesn't make sense
for a non-empty repo with an unborn HEAD, so we'll have to
differentiate the two cases there. We could just use different text,
but instead let's allow the code to continue down to checkout(),
which will issue an appropriate warning, like:
remote HEAD refers to nonexistent ref, unable to checkout
Continuing down to checkout() will make it easier to do more fixes
on top (see below).
Note that this patch fixes the case where the other side reports an
unborn head to us using the protocol extension. It _doesn't_ fix the
case where the other side doesn't tell us, we locally guess "master",
and the other side happens to have a "master" which its HEAD doesn't
point. But it doesn't make anything worse there, and it should actually
make it easier to fix that problem on top.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We don't need to put a "\n" in calls to warning(), since it adds one
itself (and the user sees an extra blank line). Drop it, and while we're
here, drop the full-stop from the message, which goes against our
guidelines.
This bug dates all the way back to 8434c2f1af (Build in clone,
2008-04-27), but presumably nobody noticed because it's hard to trigger:
you have to clone a repository whose HEAD is unborn, but which is not
otherwise empty.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The resolve-undo information in the index was not protected against
GC, which has been corrected.
* jc/resolve-undo:
fsck: do not dereference NULL while checking resolve-undo data
revision: mark blobs needed for resolve-undo as reachable
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When we found an invalid object recorded in the resolve-undo data,
we would have ended up dereferencing NULL while fsck. Reporting the
problem and going on to the next object is the right thing to do
here.
Noticed by SZEDER Gábor.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The resolve-undo extension was added to the index in cfc5789a
(resolve-undo: record resolved conflicts in a new index extension
section, 2009-12-25). This extension records the blob object names
and their modes of conflicted paths when the path gets resolved
(e.g. with "git add"), to allow "undoing" the resolution with
"checkout -m path". These blob objects should be guarded from
garbage-collection while we have the resolve-undo information in the
index (otherwise unresolve operation may try to use a blob object
that has already been pruned away).
But the code called from mark_reachable_objects() for the index
forgets to do so. Teach add_index_objects_to_pending() helper to
also add objects referred to by the resolve-undo extension.
Also make matching changes to "fsck", which has code that is fairly
similar to the reachability stuff, but have parallel implementations
for all these stuff, which may (or may not) someday want to be unified.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The way "git multi-pack" uses parse-options API has been improved.
* sg/multi-pack-index-parse-options-fix:
multi-pack-index: simplify handling of unknown --options
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Although parse_options() can handle unknown --options just fine, none
of 'git multi-pack-index's subcommands rely on it, but do it on their
own: they invoke parse_options() with the PARSE_OPT_KEEP_UNKNOWN flag,
then check whether there are any unparsed arguments left, and print
usage and quit if necessary.
Drop that PARSE_OPT_KEEP_UNKNOWN flag to let parse_options() handle
unknown options instead, which has the additional benefit that it
prints not only the usage but an "error: unknown option `foo'" message
as well.
Do leave the unparsed arguments check to catch any unexpected
non-option arguments, though, e.g. 'git multi-pack-index write foo'.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add Coccinelle rules to detect the pattern of initializing and then
finalizing a structure without using it in between at all, which
happens after code restructuring and the compilers fail to
recognize as an unused variable.
* ab/cocci-unused:
cocci: generalize "unused" rule to cover more than "strbuf"
cocci: add and apply a rule to find "unused" strbufs
cocci: have "coccicheck{,-pending}" depend on "coccicheck-test"
cocci: add a "coccicheck-test" target and test *.cocci rules
Makefile & .gitignore: ignore & clean "git.res", not "*.res"
Makefile: remove mandatory "spatch" arguments from SPATCH_FLAGS
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Generalize the newly added "unused.cocci" rule to find more than just
"struct strbuf", let's have it find the same unused patterns for
"struct string_list", as well as other code that uses
similar-looking *_{release,clear,free}() and {release,clear,free}_*()
functions.
We're intentionally loose in accepting e.g. a "strbuf_init(&sb)"
followed by a "string_list_clear(&sb, 0)". It's assumed that the
compiler will catch any such invalid code, i.e. that our
constructors/destructors don't take a "void *".
See [1] for example of code that would be covered by the
"get_worktrees()" part of this rule. We'd still need work that the
series is based on (we were passing "worktrees" to a function), but
could now do the change in [1] automatically.
1. https://lore.kernel.org/git/Yq6eJFUPPTv%2Fzc0o@coredump.intra.peff.net/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a coccinelle rule to remove "struct strbuf" initialization
followed by calling "strbuf_release()" function, without any uses of
the strbuf in the same function.
See the tests in contrib/coccinelle/tests/unused.{c,res} for what it's
intended to find and replace.
The inclusion of "contrib/scalar/scalar.c" is because "spatch" was
manually run on it (we don't usually run spatch on contrib).
Per the "buggy code" comment we also match a strbuf_init() before the
xmalloc(), but we're not seeking to be so strict as to make checks
that the compiler will catch for us redundant. Saying we'll match
either "init" or "xmalloc" lines makes the rule simpler.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Another step to rewrite more parts of "git submodule" in C.
* gc/submodule-use-super-prefix:
submodule--helper: remove display path helper
submodule--helper update: use --super-prefix
submodule--helper: remove unused SUPPORT_SUPER_PREFIX flags
submodule--helper: use correct display path helper
submodule--helper: don't recreate recursive prefix
submodule--helper update: use display path helper
submodule--helper tests: add missing "display path" coverage
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All invocations of do_get_submodule_displaypath() pass
get_super_prefix() as the super_prefix arg, which is exactly the same
as get_submodule_displaypath().
Replace all calls to do_get_submodule_displaypath() with
get_submodule_displaypath(), and since it has no more callers, remove
it.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Unlike the other subcommands, "git submodule--helper update" uses the
"--recursive-prefix" flag instead of "--super-prefix". The two flags are
otherwise identical (they only serve to compute the 'display path' of a
submodule), except that there is a dedicated helper function to get the
value of "--super-prefix".
This inconsistency exists because "git submodule update" used to pass
"--recursive-prefix" between shell and C (introduced in [1]) before
"--super-prefix" was introduced (in [2]), and for simplicity, we kept
this name when "git submodule--helper update" was created.
Remove "--recursive-prefix" and its associated code from "git
submodule--helper update", replacing it with "--super-prefix".
To use "--super-prefix", module_update is marked with
SUPPORT_SUPER_PREFIX. Note that module_clone must also be marked with
SUPPORT_SUPER_PREFIX, otherwise the "git submodule--helper clone"
subprocess will fail check because "--super-prefix" is propagated via
the environment.
[1] 48308681b0 (git submodule update: have a dedicated helper for
cloning, 2016-02-29)
[2] 74866d7579 (git: make super-prefix option, 2016-10-07)
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the SUPPORT_SUPER_PREFIX flag from "add", "init" and
"summary". For the "add" command it hasn't been used since [1],
likewise for "init" and "summary" since [2] and [3], respectively.
As implemented in 74866d75793 (git: make super-prefix option,
2016-10-07) the SUPPORT_SUPER_PREFIX flag in git.c applies for the
entire command, but as implemented in 89c86265576 (submodule helper:
support super prefix, 2016-12-08) we assert here in
cmd_submodule__helper() that we're not getting the flag unexpectedly.
1. 8c8195e9c3e (submodule--helper: introduce add-clone subcommand,
2021-07-10)
2. 6e7c14e65c8 (submodule update --init: display correct path from
submodule, 2017-01-06)
3. 1cf823d8f00 (submodule: remove unnecessary `prefix` based option
logic, 2021-06-22)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Replace a chunk of code in update_submodule() with an equivalent
do_get_submodule_displaypath() invocation. This is already tested by
t/t7406-submodule-update.sh:'submodule update --init --recursive from
subdirectory', so no tests are added.
The two are equivalent because:
- Exactly one of recursive_prefix|prefix is non-NULL at a time; prefix
is set at the superproject level, and recursive_prefix is set when
recursing into submodules. There is also a BUG() statement in
get_submodule_displaypath() that asserts that both cannot be non-NULL.
- In get_submodule_displaypath(), get_super_prefix() always returns NULL
because "--super-prefix" is never passed. Thus calling it is
equivalent to calling do_get_submodule_displaypath() with super_prefix
= NULL.
Therefore:
- When recursive_prefix is non-NULL, prefix is NULL, and thus
get_submodule_displaypath() just returns prefixed_path. This is
identical to calling do_get_submodule_displaypath() with super_prefix
= recursive_prefix because the return value is still the concatenation
of recursive_prefix + update_data->sm_path.
- When prefix is non-NULL, prefixed_path = update_data->sm_path. Thus
calling get_submodule_displaypath() with prefixed_path is equivalent
to calling do_get_submodule_displaypath() with update_data->sm_path
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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update_submodule() uses duplicated code to compute
update_data->displaypath and next.recursive_prefix. The latter is just
the former with "/" appended to it, and since update_data->displaypath
not changed outside of this statement, we can just reuse the already
computed result.
We can go one step further and remove the reference to
next.recursive_prefix altogether. Since it is only used in
update_data_to_args() (to compute the "--recursive-prefix" flag for the
recursive update child process) we can just use the already computed
.displaypath value of there.
Delete the duplicated code, and remove the unnecessary reference to
next.recursive_prefix. As a bonus, this fixes a memory leak where
prefixed_path was never freed (this leak was first reported in [1]).
[1] https://lore.kernel.org/git/877a45867ae368bf9e053caedcb6cf421e02344d.1655336146.git.gitgitgadget@gmail.com
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two locations in prepare_to_clone_next_submodule() that
manually calculate the submodule display path, but should just use
do_get_submodule_displaypath() for consistency.
Do this replacement and reorder the code slightly to avoid computing
the display path twice.
Until the preceding commit this code had never been tested, with our
newly added tests we can see that both these sites have been computing
the display path incorrectly ever since they were introduced in
48308681b0 (git submodule update: have a dedicated helper for cloning,
2016-02-29) [1]:
- The first hunk puts a "/" between recursive_prefix and ce->name, but
recursive_prefix already ends with "/".
- The second hunk calls relative_path() on recursive_prefix and
ce->name, but relative_path() only makes sense when both paths share
the same base directory. This is never the case here:
- recursive_prefix is the path from the topmost superproject to the
current submodule
- ce->name is the path from the root of the current submodule to its
submodule.
so, e.g. recursive_prefix="super" and ce->name="submodule" produces
displayname="../super" instead of "super/submodule".
[1] I verified this by applying the tests to 48308681b0.
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ab/submodule-cleanup:
git-sh-setup.sh: remove "say" function, change last users
git-submodule.sh: use "$quiet", not "$GIT_QUIET"
submodule--helper: eliminate internal "--update" option
submodule--helper: understand --checkout, --merge and --rebase synonyms
submodule--helper: report "submodule" as our name in some "-h" output
submodule--helper: rename "absorb-git-dirs" to "absorbgitdirs"
submodule update: remove "-v" option
submodule--helper: have --require-init imply --init
git-submodule.sh: remove unused top-level "--branch" argument
git-submodule.sh: make the "$cached" variable a boolean
git-submodule.sh: remove unused $prefix variable
git-submodule.sh: remove unused sanitize_submodule_env()
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Plug various memory leaks.
* ab/leakfix:
pull: fix a "struct oid_array" memory leak
cat-file: fix a common "struct object_context" memory leak
gc: fix a memory leak
checkout: avoid "struct unpack_trees_options" leak
merge-file: fix memory leaks on error path
merge-file: refactor for subsequent memory leak fix
cat-file: fix a memory leak in --batch-command mode
revert: free "struct replay_opts" members
submodule.c: free() memory from xgetcwd()
clone: fix memory leak in wanted_peer_refs()
check-ref-format: fix trivial memory leak
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Fix a memory leak introduced in 44c175c7a46 (pull: error on no merge
candidates, 2015-06-18). As a result we can mark several tests as
passing with SANITIZE=leak using "TEST_PASSES_SANITIZE_LEAK=true".
Removing the "int ret = 0" assignment added here in a6d7eb2c7a6 (pull:
optionally rebase submodules (remote submodule changes only),
2017-06-23) is not a logic error, it could always have been left
uninitialized (as "int ret"), now that we'll use the "ret" from the
upper scope we can drop the assignment in the "opt_rebase" branch.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak where "cat-file" will leak the "path" member. See
e5fba602e59 (textconv: support for cat_file, 2010-06-15) for the code
that introduced the offending get_oid_with_context() call (called
get_sha1_with_context() at the time).
As a result we can mark several tests as passing with SANITIZE=leak
using "TEST_PASSES_SANITIZE_LEAK=true".
As noted in dc944b65f1d (get_sha1_with_context: dynamically allocate
oc->path, 2017-05-19) callers must free the "path" member. That same
commit added the relevant free() to this function, but we weren't
catching cases where we'd return early.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak in code added in 41abfe15d95 (maintenance: add
pack-refs task, 2021-02-09), we need to call strvec_clear() on the
"struct strvec" that we initialized.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 1c41d2805e4 (unpack_trees_options: free messages when done,
2018-05-21) we started calling clear_unpack_trees_porcelain() on this
codepath, but missed this error path.
We could call clear_unpack_trees_porcelain() just before we error()
and return when unmerged_cache() fails, but the more correct fix is to
not have the unmerged_cache() check happen in the middle of our
"topts" setup.
Before 23cbf11b5c0 (merge-recursive: porcelain messages for checkout,
2010-08-11) we would not malloc() to setup our "topts", which is when
this started to leak on the error path.
Before that this code wasn't conflating the setup of "topts" and the
unmerged_cache() call in any meaningful way. The initial version in
782c2d65c24 (Build in checkout, 2008-02-07) just does a "memset" of
it, and initializes a single struct member.
Then in 8ccba008ee3 (unpack-trees: allow Porcelain to give different
error messages, 2008-05-17) we added the initialization of the error
message, which as noted above finally started leaking in 23cbf11b5c0.
Let's fix the memory leak, and avoid future issues by initializing the
"topts" with a helper function. There are no functional changes here.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak in "merge-file", we need to loop over the "mmfs"
array and free() what we've got so far when we error out. As a result
we can mark a test as passing with SANITIZE=leak using
"TEST_PASSES_SANITIZE_LEAK=true".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor the code in builtin/merge-file.c to:
* Use the initializer to zero out "mmfs", and use modern C syntax for
the rest.
* Refactor the the inner loop to use a variable and "if/else if"
pattern followed by "return". This will make a change to change it to
a "goto cleanup" pattern smaller.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak introduced in 440c705ea63 (cat-file: add
--batch-command mode, 2022-02-18). The free_cmds() function was only
called on "queued_nr" if we had a "flush" command. As the "without
flush for blob info" test added in the same commit shows we can't rely
on that, so let's call free_cmds() again at the end.
Since "nr" follows the usual pattern of being set to 0 if we've
free()'d the memory already it's OK to call it twice, even in cases
where we are doing a "flush".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Call the release_revisions() function added in
1878b5edc03 (revision.[ch]: provide and start using a
release_revisions(), 2022-04-13) in cmd_revert(), as well as freeing
the xmalloc()'d "revs" member itself.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak added in 0ec4b1650cc (clone: fix ref selection in
--single-branch --branch=xxx, 2012-06-22).
Whether we get our "remote_head" from copy_ref() directly, or with a
call to guess_remote_head() it'll be the result of a copy_ref() in
either case, as guess_remote_head() is a wrapper for copy_ref() (or it
returns NULL).
We can't mark any tests passing passing with SANITIZE=leak using
"TEST_PASSES_SANITIZE_LEAK=true" as a result of this change, but
e.g. "t/t1500-rev-parse.sh" now gets closer to passing.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak in "git check-ref-format" that's been present in the
code in one form or another since 38eedc634bc (git check-ref-format
--print, 2009-10-12), the code got substantially refactored in
cfbe22f03f9 (check-ref-format: handle subcommands in separate
functions, 2010-08-05).
As a result we can mark a test as passing with SANITIZE=leak using
"TEST_PASSES_SANITIZE_LEAK=true".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply Coccinelle rule to turn raw memmove() into MOVE_ARRAY() cpp
macro, which would improve maintainability and readability.
* jc/builtin-mv-move-array:
builtin/mv.c: use the MOVE_ARRAY() macro instead of memmove()
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The variables 'source', 'destination', and 'submodule_gitfile' are
all of type "const char **", and an element of such an array is of
"type const char *", but these memmove() calls were written as if
these variables are of type "char **".
Once these memmove() calls are fixed to use the correct type to
compute the number of bytes to be moved, e.g.
- memmove(source + i, source + i + 1, n * sizeof(char *));
+ memmove(source + i, source + i + 1, n * sizeof(const char *));
existing contrib/coccinelle/array.cocci rules can recognize them as
candidates for turning into MOVE_ARRAY().
While at it, use CALLOC_ARRAY() instead of xcalloc() to allocate the
modes[] array that is involved in the change.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Further preparation to turn git-submodule.sh into a builtin.
* ab/submodule-cleanup:
git-sh-setup.sh: remove "say" function, change last users
git-submodule.sh: use "$quiet", not "$GIT_QUIET"
submodule--helper: eliminate internal "--update" option
submodule--helper: understand --checkout, --merge and --rebase synonyms
submodule--helper: report "submodule" as our name in some "-h" output
submodule--helper: rename "absorb-git-dirs" to "absorbgitdirs"
submodule update: remove "-v" option
submodule--helper: have --require-init imply --init
git-submodule.sh: remove unused top-level "--branch" argument
git-submodule.sh: make the "$cached" variable a boolean
git-submodule.sh: remove unused $prefix variable
git-submodule.sh: remove unused sanitize_submodule_env()
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Follow-up on the preceding commit which taught "git submodule--helper
update" to understand "--merge", "--checkout" and "--rebase" and use
those options instead of "--update=(rebase|merge|checkout|none)" when
the command invokes itself.
Unlike the preceding change this isn't strictly necessary to
eventually change "git-submodule.sh" so that it invokes "git
submodule--helper update" directly, but let's remove this
inconsistency in the command-line interface. We shouldn't need to
carry special synonyms for existing options in "git submodule--helper"
when that command can use the primary documented names instead.
But, as seen in the post-image this makes the control flow within
"builtin/submodule--helper.c" simpler, we can now write directly to
the "update_default" member of "struct update_data" when parsing the
options in "module_update()".
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Understand --checkout, --merge and --rebase synonyms for
--update={checkout,merge,rebase}, as well as the short options that
'git submodule' itself understands.
This removes a difference between the CLI API of "git submodule" and
"git submodule--helper", making it easier to make the latter an alias
for the former. See 48308681b07 (git submodule update: have a
dedicated helper for cloning, 2016-02-29) for the initial addition of
--update.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change the user-facing "git submodule--helper" commands so that
they'll report their name as being "git submodule". To a user these
commands are internal implementation details, and it doesn't make
sense to emit usage about an internal helper when "git submodule" is
invoked with invalid options.
Before this we'd emit e.g.:
$ git submodule absorbgitdirs --blah
error: unknown option `blah'
usage: git submodule--helper absorbgitdirs [<options>] [<path>...]
[...]
And:
$ git submodule set-url -- --
usage: git submodule--helper set-url [--quiet] <path> <newurl>
[...]
Now we'll start with "usage: git submodule [...]" in both of those
cases. This change does not alter the "list", "name", "clone",
"config" and "create-branch" commands, those are internal-only (as an
aside; their usage info should probably invoke BUG(...)). This only
changes the user-facing commands.
The "status", "deinit" and "update" commands are not included in this
change, because their usage information already used "submodule"
rather than "submodule--helper".
I don't think it's currently possible to emit some of this usage
information in practice, as git-submodule.sh will catch unknown
options, and e.g. it doesn't seem to be possible to get "add" to emit
its usage information from "submodule--helper".
Though that change may be superfluous now, it's also harmless, and
will allow us to eventually dispatch further into "git
submodule--helper" from git-submodule.sh, while emitting the correct
usage output.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Rename the "absorb-git-dirs" subcommand to "absorbgitdirs", which is
what the "git submodule" command itself has called it since the
subcommand was implemented in f6f85861400 (submodule: add
absorb-git-dir function, 2016-12-12).
Having these two be different will make it more tedious to dispatch to
eventually dispatch "git submodule--helper" directly, as we'd need to
retain this name mapping. So let's get rid of this needless
inconsistency.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Adjust code added in 0060fd1511b (clone --recurse-submodules: prevent
name squatting on Windows, 2019-09-12) to have the internal
--require-init option imply --init, rather than having
"git-submodule.sh" add it implicitly.
This change doesn't make any difference now, but eliminates another
special-case where "git submodule--helper update"'s behavior was
different from "git submodule update". This will make it easier to
eventually replace the cmd_update() function in git-submodule.sh.
We'll still need to keep the distinction between "--init" and
"--require-init" in git-submodule.sh. Once cmd_update() gets
re-implemented in C we'll be able to change variables and other code
related to that, but not yet.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git mv A B" in a sparsely populated working tree can be asked to
move a path between directories that are "in cone" (i.e. expected
to be materialized in the working tree) and "out of cone"
(i.e. expected to be hidden). The handling of such cases has been
improved.
* sy/mv-out-of-cone:
mv: add check_dir_in_index() and solve general dir check issue
mv: use flags mode for update_mode
mv: check if <destination> exists in index to handle overwriting
mv: check if out-of-cone file exists in index with SKIP_WORKTREE bit
mv: decouple if/else-if checks using goto
mv: update sparsity after moving from out-of-cone to in-cone
t1092: mv directory from out-of-cone to in-cone
t7002: add tests for moving out-of-cone file/directory
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Originally, moving a <source> directory which is not on-disk due
to its existence outside of sparse-checkout cone, "giv mv" command
errors out with "bad source".
Add a helper check_dir_in_index() function to see if a directory
name exists in the index. Also add a SKIP_WORKTREE_DIR bit to mark
such directories.
Change the checking logic, so that such <source> directory makes
"giv mv" command warns with "advise_on_updating_sparse_paths()"
instead of "bad source"; also user now can supply a "--sparse" flag so
this operation can be carried out successfully.
Helped-by: Victoria Dye <vdye@github.com>
Helped-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As suggested by Derrick [1], move the in-line definition of
"enum update_mode" to the top of the file and make it use "flags"
mode (each state is a different bit in the word).
Change the flag assignments from '=' (single assignment) to '|='
(additive). Also change flag evaluation from '==' to '&', etc.
[1] https://lore.kernel.org/git/22aadea2-9330-aa9e-7b6a-834585189144@github.com/
Helped-by: Victoria Dye <vdye@github.com>
Helped-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Originally, moving a sparse file into cone can result in unwarned
overwrite of existing entry. The expected behavior is that if the
<destination> exists in the entry, user should be prompted to supply
a [-f|--force] to carry out the operation, or the operation should
fail.
Add a check mechanism to do that.
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Originally, moving a <source> file which is not on-disk but exists in
index as a SKIP_WORKTREE enabled cache entry, "giv mv" command errors
out with "bad source".
Change the checking logic, so that such <source>
file makes "giv mv" command warns with "advise_on_updating_sparse_paths()"
instead of "bad source"; also user now can supply a "--sparse" flag so
this operation can be carried out successfully.
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Previous if/else-if chain are highly nested and hard to develop/extend.
Refactor to decouple this if/else-if chain by using goto to jump ahead.
Suggested-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Shaoxuan Yuan <shaoxuan.yuan02@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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