| Commit message (Collapse) | Author | Age | Files | Lines |
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Retire a rather expensive-to-run Coccinelle check patch.
* sg/retire-unused-cocci:
cocci: remove 'unused.cocci'
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When 'unused.cocci' was added in 4f40f6cb73 (cocci: add and apply a
rule to find "unused" strbufs, 2022-07-05) it found three unused
strbufs, and when it was generalized in the next commit it managed to
find an unused string_list as well. That's four unused variables in
over 17 years, so apparently we rarely make this mistake.
Unfortunately, applying 'unused.cocci' is quite expensive, e.g. it
increases the from-scratch runtime of 'make coccicheck' by over 5:30
minutes or over 160%:
$ make -s cocciclean
$ time make -s coccicheck
* new spatch flags
real 8m56.201s
user 0m0.420s
sys 0m0.406s
$ rm contrib/coccinelle/unused.cocci contrib/coccinelle/tests/unused.*
$ make -s cocciclean
$ time make -s coccicheck
* new spatch flags
real 3m23.893s
user 0m0.228s
sys 0m0.247s
That's a lot of runtime spent for not much in return, and arguably an
unused struct instance sneaking in is not that big of a deal to
justify the significantly increased runtime.
Remove 'unused.cocci', because we are not getting our CPU cycles'
worth.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git subtree" (in contrib/) update.
* js/subtree-fully-spelt-quiet-and-debug-options:
subtree: support long global flags
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The documentation at e75d1da38a claimed support, but it was never present
Signed-off-by: Josh Soref <jsoref@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach the recently invented "password expiry time" trait to the
wincred credential helper.
* mh/credential-password-expiry-wincred:
credential/wincred: store password_expiry_utc
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This attribute is important when storing OAuth credentials which may
expire after as little as one hour. d208bfdf (credential: new attribute
password_expiry_utc, 2023-02-18) added support for this attribute in
general so that individual credential backend like wincred can use it.
Signed-off-by: M Hickford <mirth.hickford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up.
* mh/use-wincred-from-system:
credential/wincred: include wincred.h
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Delete redundant definitions. Mingw-w64 has wincred.h since 2007 [1].
[1] https://github.com/mingw-w64/mingw-w64/blob/9d937a7f4f766f903c9433044f77bfa97a0bc1d8/mingw-w64-headers/include/wincred.h
Signed-off-by: M Hickford <mirth.hickford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The implementation of credential helpers used fgets() over fixed
size buffers to read protocol messages, causing the remainder of
the folded long line to trigger unexpected behaviour, which has
been corrected.
* tb/credential-long-lines:
contrib/credential: embiggen fixed-size buffer in wincred
contrib/credential: avoid fixed-size buffer in libsecret
contrib/credential: .gitignore libsecret build artifacts
contrib/credential: remove 'gnome-keyring' credential helper
contrib/credential: avoid fixed-size buffer in osxkeychain
t/lib-credential.sh: ensure credential helpers handle long headers
credential.c: store "wwwauth[]" values in `credential_read()`
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As in previous commits, harden the wincred credential helper against the
aforementioned protocol injection attack.
Unlike the approached used for osxkeychain and libsecret, where a
fixed-size buffer was replaced with `getline()`, we must take a
different approach here. There is no `getline()` equivalent in Windows,
and the function is not available to us with ordinary compiler settings.
Instead, allocate a larger (still fixed-size) buffer in which to process
each line. The value of 100 KiB is chosen to match the maximum-length
header that curl will allow, CURL_MAX_HTTP_HEADER.
To ensure that we are reading complete lines at a time, and that we
aren't susceptible to a similar injection attack (albeit with more
padding), ensure that each read terminates at a newline (i.e., that no
line is more than 100 KiB long).
Note that it isn't sufficient to turn the old loop into something like:
while (len && strchr("\r\n", buf[len - 1])) {
buf[--len] = 0;
ends_in_newline = 1;
}
because if an attacker sends something like:
[aaaaa.....]\r
host=example.com\r\n
the credential helper would fill its buffer after reading up through the
first '\r', call fgets() again, and then see "host=example.com\r\n" on
its line.
Note that the original code was written in a way that would trim an
arbitrary number of "\r" and "\n" from the end of the string. We should
get only a single "\n" (since the point of `fgets()` is to return the
buffer to us when it sees one), and likewise would not expect to see
more than one associated "\r". The new code trims a single "\r\n", which
matches the original intent.
[1]: https://curl.se/libcurl/c/CURLOPT_HEADERFUNCTION.html
Tested-by: Matthew John Cheetham <mjcheetham@outlook.com>
Helped-by: Matthew John Cheetham <mjcheetham@outlook.com>
Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The libsecret credential helper reads the newline-delimited
protocol stream one line at a time by repeatedly calling fgets() into a
fixed-size buffer, and is thus affected by the vulnerability described
in the previous commit.
To mitigate this attack, avoid using a fixed-size buffer, and instead
rely on getline() to allocate a buffer as large as necessary to fit the
entire content of the line, preventing any protocol injection.
In most parts of Git we don't assume that every platform has getline().
But libsecret is primarily used on Linux, where we do already assume it
(using a knob in config.mak.uname). POSIX also added getline() in 2008,
so we'd expect other recent Unix-like operating systems to have it
(e.g., FreeBSD also does).
Note that the buffer was already allocated on the heap in this case, but
we'll swap `g_free()` for `free()`, since it will now be allocated by
the system `getline()`, rather than glib's `g_malloc()`.
Tested-by: Jeff King <peff@peff.net>
Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The libsecret credential helper does not mark its build artifact as
ignored, so running "make" results in a dirty working tree.
Mark the "git-credential-libsecret" binary as ignored to avoid the above.
Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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libgnome-keyring was deprecated in 2014 (in favor of libsecret), more
than nine years ago [1].
The credential helper implemented using libgnome-keyring has had a small
handful of commits since 2013, none of which implemented or changed any
functionality. The last commit to do substantial work in this area was
15f7221686 (contrib/git-credential-gnome-keyring.c: support really
ancient gnome-keyring, 2013-09-23), just shy of nine years ago.
This credential helper suffers from the same `fgets()`-related injection
attack (using the new "wwwauth[]" feature) as in the previous commit.
Instead of patching it, let's remove this helper as deprecated.
[1]: https://mail.gnome.org/archives/commits-list/2014-January/msg01585.html
Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The macOS Keychain-based credential helper reads the newline-delimited
protocol stream one line at a time by repeatedly calling fgets() into a
fixed-size buffer, and is thus affected by the vulnerability described
in the previous commit.
To mitigate this attack, avoid using a fixed-size buffer, and instead
rely on getline() to allocate a buffer as large as necessary to fit the
entire content of the line, preventing any protocol injection.
We solved a similar problem in a5bb10fd5e (config: avoid fixed-sized
buffer when renaming/deleting a section, 2023-04-06) by switching to
strbuf_getline(). We can't do that here because the contrib helpers do
not link with the rest of Git, and so can't use a strbuf. But we can use
the system getline() directly, which works similarly.
In most parts of Git we don't assume that every platform has getline().
But this helper is run only on OS X, and that platform added support in
10.7 ("Lion") which was released in 2011.
Tested-by: Taylor Blau <me@ttaylorr.com>
Co-authored-by: Jeff King <peff@peff.net>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The completion script used to use bare "read" without the "-r"
option to read the contents of various state files, which risked
getting confused with backslashes in them. This has been
corrected.
* ek/completion-use-read-r-to-read-literally:
completion: suppress unwanted unescaping of `read`
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The function `__git_eread`, which reads the first line from the file,
calls the `read` builtin without passing the flag option `-r`. When
the `read` builtin is called without the flag `-r`, it processes the
backslash escaping in the text that it reads. For this reason, it is
generally considered the best practice to always use the `read`
builtin with flag `-r` unless one intensionally processes the
backslash escaping. For the present case in git-prompt.sh, in fact,
all the occurrences of the calls of `__git_eread` intend to read the
literal content of the first lines.
To make it read the first line literally, pass the flag `-r` to the
`read` builtin in the function `__git_eread`.
Signed-off-by: Edwin Kofler <edwin@kofler.dev>
Signed-off-by: Koichi Murase <myoga.murase@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up around the use of the_repository.
* ab/remove-implicit-use-of-the-repository:
libs: use "struct repository *" argument, not "the_repository"
post-cocci: adjust comments for recent repo_* migration
cocci: apply the "revision.h" part of "the_repository.pending"
cocci: apply the "rerere.h" part of "the_repository.pending"
cocci: apply the "refs.h" part of "the_repository.pending"
cocci: apply the "promisor-remote.h" part of "the_repository.pending"
cocci: apply the "packfile.h" part of "the_repository.pending"
cocci: apply the "pretty.h" part of "the_repository.pending"
cocci: apply the "object-store.h" part of "the_repository.pending"
cocci: apply the "diff.h" part of "the_repository.pending"
cocci: apply the "commit.h" part of "the_repository.pending"
cocci: apply the "commit-reach.h" part of "the_repository.pending"
cocci: apply the "cache.h" part of "the_repository.pending"
cocci: add missing "the_repository" macros to "pending"
cocci: sort "the_repository" rules by header
cocci: fix incorrect & verbose "the_repository" rules
cocci: remove dead rule from "the_repository.pending.cocci"
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Apply the part of "the_repository.pending.cocci" pertaining to
"revision.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"rerere.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"refs.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"promisor-remote.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"packfile.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"pretty.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"object-store.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"diff.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"commit.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"commit-reach.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the part of "the_repository.pending.cocci" pertaining to
"cache.h".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the case of diff.h, rerere.h and revision.h the macros were added
in [1], [2] and [3] when "the_repository.pending.cocci" didn't
exist. None of the subsequently added migration rules covered
them. Let's add those missing rules.
In the case of macros in "cache.h", "commit.h", "packfile.h",
"promisor-remote.h" and "refs.h" those aren't guarded by
"NO_THE_REPOSITORY_COMPATIBILITY_MACROS", but they're also macros that
add "the_repository" as the first argument, so we should migrate away
from them.
1. 2abf3503854 (revision.c: remove implicit dependency on the_index,
2018-09-21)
2. e6757652350 (diff.c: remove implicit dependency on the_index,
2018-09-21)
3. 35843b1123e (rerere.c: remove implicit dependency on the_index,
2018-09-21)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Sort the "the_repository.pending.cocci" file by which header the
macros are in, and add a comment to that effect in front of the
rules. This will make subsequent commits easier to follow, as we'll be
applying these rules on a header-by-header basis.
Once we've fully applied "the_repository.pending.cocci" we'll keep
this rules around for a while in "the_repository.cocci", to help any
outstanding topics and out-of-tree code to resolve textual or semantic
conflicts with these changes, but eventually we'll remove the
"the_repository.cocci" as a follow-up.
So even if some of these functions are subsequently moved and/or split
into other or new headers there's no risk of this becoming stale, if
and when that happens the we should be removing these rules anyway.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When these rules started being added in [1] they didn't use a ";"
after the ")", and would thus catch uses of these macros within
expressions. But as of [2] the new additions were broken in that
they'd only match a subset of the users of these macros.
Rather than narrowly fixing that, let's have these use the much less
verbose pattern introduced in my recent [3]: There's no need to
exhaustively enumerate arguments if we use the "..." syntax. This
means that we can fold all of these different rules into one.
1. afd69dcc219 (object-store: prepare read_object_file to deal with
any repo, 2018-11-13)
2. 21a9651ba3f (commit-reach: prepare get_merge_bases to handle any
repo, 2018-11-13)
3. 0e6550a2c63 (cocci: add a index-compatibility.pending.cocci,
2022-11-19)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "parse_commit_gently" macro went away in [1], so we don't need to
carry this for its migration.
1. ea3f7e598c8 (revision: use repository from rev_info when parsing
commits, 2020-06-23)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Lift the limitation that colored prompts can only be used with
PROMPT_COMMAND mode.
* fc/completion-colors-do-not-need-prompt-command:
completion: prompt: use generic colors
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When the prompt command mode was introduced in 1bfc51ac81 (Allow
__git_ps1 to be used in PROMPT_COMMAND, 2012-10-10), the assumption was
that it was necessary in order to properly add colors to PS1 in bash,
but this wasn't true.
It's true that the \[ \] markers add the information needed to properly
calculate the width of the prompt, and they have to be added directly to
PS1, a function returning them doesn't work.
But that is because bash coverts the \[ \] markers in PS1 to \001 \002,
which is what readline ultimately needs in order to calculate the width.
We don't need bash to do this conversion, we can use \001 \002
ourselves, and then the prompt command mode is not necessary to display
colors.
This is what functions returning colors are supposed to do [1].
[1] http://mywiki.wooledge.org/BashFAQ/053
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Tested-by: Joakim Petersen <joak-pet@online.no>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's no value in it.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When the list of files as input was implemented in 6508eedf67
(t/aggregate-results: accomodate systems with small max argument list
length, 2010-06-01), a much simpler solution wasn't considered.
Let's just pass the directory as an argument.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Have the last users of "USE_THE_INDEX_COMPATIBILITY_MACROS" use the
underlying *_index() variants instead. Now all previous users of
"USE_THE_INDEX_COMPATIBILITY_MACROS" have been migrated away from the
wrapper macros, and if applicable to use the "USE_THE_INDEX_VARIABLE"
added in [1].
Let's leave the "index-compatibility.cocci" in place, even though it
won't be doing anything on "master". It will benefit any out-of-tree
code that need to use these compatibility macros. We can eventually
remove it.
1. bdafeae0b9c (cache.h & test-tool.h: add & use
"USE_THE_INDEX_VARIABLE", 2022-11-19)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the redundant update_main_cache_tree() function, and make its
users use cache_tree_update() instead.
The behavior of populating the "the_index.cache_tree" if it wasn't
present already was needed when this function was introduced in [1],
but it hasn't been needed since [2]; The "cache_tree_update()" will
now lazy-allocate, so there's no need for the wrapper.
1. 996277c5206 (Refactor cache_tree_update idiom from commit,
2011-12-06)
2. fb0882648e0 (cache-tree: clean up cache_tree_update(), 2021-01-23)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a trivial rule for "write_cache_as_tree" to
"index-compatibility.cocci", and apply it. This was left out of the
rules added in 0e6550a2c63 (cocci: add a
index-compatibility.pending.cocci, 2022-11-19) because this
compatibility wrapper lived in "cache-tree.h", not "cache.h"
But it's like the other "USE_THE_INDEX_COMPATIBILITY_MACROS", so let's
migrate it too.
The replacement of "USE_THE_INDEX_COMPATIBILITY_MACROS" here with
"USE_THE_INDEX_VARIABLE" is a manual change on top, now that these
files only use "&the_index", and don't need any compatibility
macros (or functions).
The wrapping of some argument lists is likewise manual, as coccinelle
would otherwise give us overly long argument lists.
The reason for putting the "O" in the cocci rule on the "-" and "+"
lines is because I couldn't get correct whitespacing otherwise,
i.e. I'd end up with "oid,&the_index", not "oid, &the_index".
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the rule added in [1] to change "cache_name_pos" to
"index_name_pos", which allows us to get rid of another
"USE_THE_INDEX_COMPATIBILITY_MACROS" macro.
The replacement of "USE_THE_INDEX_COMPATIBILITY_MACROS" here with
"USE_THE_INDEX_VARIABLE" is a manual change on top, now that these
files only use "&the_index", and don't need any compatibility
macros (or functions).
1. 0e6550a2c63 (cocci: add a index-compatibility.pending.cocci,
2022-11-19)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Apply the "active_nr" part of "index-compatibility.pending.cocci",
which was left out in [1] due to an in-flight conflict. As of [2] the
topic we conflicted with has been merged to "master", so we can fully
apply this rule.
1. dc594180d9e (cocci & cache.h: apply variable section of "pending"
index-compatibility, 2022-11-19)
2. 9ea1378d046 (Merge branch 'ab/various-leak-fixes', 2022-12-14)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a semantic patch for replace ALLOC_ARRAY+COPY_ARRAY with DUP_ARRAY
to reduce code duplication and apply its results.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a case insensitive mode to the Bash completion helpers.
* aw/complete-case-insensitive:
completion: add case-insensitive match of pseudorefs
completion: add optional ignore-case when matching refs
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When GIT_COMPLETION_IGNORE_CASE is set, also allow lowercase completion
text like "head" to match uppercase HEAD and other pseudorefs.
Signed-off-by: Alison Winters <alisonatwork@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If GIT_COMPLETION_IGNORE_CASE is set, --ignore-case will be added to
git for-each-ref calls so that refs can be matched case insensitively,
even when running on case sensitive filesystems.
Signed-off-by: Alison Winters <alisonatwork@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git jump" (in contrib/) learned to present the "quickfix list" to
its standard output (instead of letting it consumed by the editor
it invokes), and learned to also drive emacs/emacsclient.
* yn/git-jump-emacs:
git-jump: invoke emacs/emacsclient
git-jump: move valid-mode check earlier
git-jump: add an optional argument '--stdout'
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It works with GIT_EDITOR="emacs", "emacsclient" or "emacsclient -t"
Signed-off-by: Yoichi Nakayama <yoichi.nakayama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We check if the "mode" argument supplied by the user is valid by seeing
if we have a mode_$mode function defined. But we don't do that until
after creating the tempfile. This is wasteful (we create a tempfile but
never use it), and makes it harder to add new options (the recent stdout
option exits before creating the tempfile, so it misses the check and
"git jump --stdout foo" will produce "git-jump: 92: mode_foo: not found"
rather than the regular usage message).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It can be used with M-x grep on Emacs.
Signed-off-by: Yoichi Nakayama <yoichi.nakayama@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Squelch warnings from Coccinelle
* ab/fewer-the-index-macros:
cocci: avoid "should ... be a metavariable" warnings
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