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mailinfo.p_hdr_info/s_hdr_info are null-terminated lists of strbuf's,
with entries pointing either to NULL or an allocated strbuf. Therefore
we need to free those strbuf's (and not just the data they contain)
whenever we're done with a given entry. (See handle_header() where those
new strbufs are malloc'd.)
Once we no longer need the list (and not just its entries) we can switch
over to strbuf_list_free() instead of manually iterating over the list,
which takes care of those additional details for us. We can only do this
in clear_mailinfo() - in handle_commit_message() we are only clearing the
array contents but want to reuse the array itself, hence we can't use
strbuf_list_free() there.
However, strbuf_list_free() cannot handle a NULL input, and the lists we
are freeing might be NULL. Therefore we add a NULL check in
strbuf_list_free() to make it safe to use with a NULL input (which is a
pattern used by some of the other *_free() functions around git).
Leak output from t0023:
Direct leak of 72 byte(s) in 3 object(s) allocated from:
#0 0x49a85d in malloc ../projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:145:3
#1 0x9ac9f4 in do_xmalloc wrapper.c:41:8
#2 0x9ac9ca in xmalloc wrapper.c:62:9
#3 0x7f6cf7 in handle_header mailinfo.c:205:10
#4 0x7f5abf in check_header mailinfo.c:583:4
#5 0x7f5524 in mailinfo mailinfo.c:1197:3
#6 0x4dcc95 in parse_mail builtin/am.c:1167:6
#7 0x4d9070 in am_run builtin/am.c:1732:12
#8 0x4d5b7a in cmd_am builtin/am.c:2398:3
#9 0x4cd91d in run_builtin git.c:467:11
#10 0x4cb5f3 in handle_builtin git.c:719:3
#11 0x4ccf47 in run_argv git.c:808:4
#12 0x4caf49 in cmd_main git.c:939:19
#13 0x69e43e in main common-main.c:52:11
#14 0x7fc1fadfa349 in __libc_start_main (/lib64/libc.so.6+0x24349)
SUMMARY: AddressSanitizer: 72 byte(s) leaked in 3 allocation(s).
Signed-off-by: Andrzej Hunt <ajrhunt@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A misdesigned strbuf_write_fd() function has been retired.
* rs/retire-strbuf-write-fd:
strbuf: remove unreferenced strbuf_write_fd method.
bugreport.c: replace strbuf_write_fd with write_in_full
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strbuf_write_fd was only used in bugreport.c. Since that file now uses
write_in_full, this method is no longer needed. In addition, strbuf_write_fd
did not guard against exceeding MAX_IO_SIZE for the platform, nor
provided error handling in the event of a failure if only partial data
was written to the file descriptor. Since already write_in_full has this
capability and is in general use, it should be used instead. The change
impacts strbuf.c and strbuf.h.
Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update the parser used for credential.<URL>.<variable>
configuration, to handle <URL>s with '/' in them correctly.
* bc/wildcard-credential:
credential: fix matching URLs with multiple levels in path
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The "bugreport" tool.
* es/bugreport:
bugreport: drop extraneous includes
bugreport: add compiler info
bugreport: add uname info
bugreport: gather git version and build info
bugreport: add tool to generate debugging info
help: move list_config_help to builtin/help
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46fd7b3900 ("credential: allow wildcard patterns when matching config",
2020-02-20) introduced support for matching credential helpers using
urlmatch. In doing so, it introduced code to percent-encode the paths
we get from the credential helper so that they could be effectively
matched by the urlmatch code.
Unfortunately, that code had a bug: it percent-encoded the slashes in
the path, resulting in any URL path that contained multiple levels
(i.e., a directory component) not matching.
We are currently the only caller of the percent-encoding code and could
simply change it not to encode slashes. However, we still want to
encode slashes in the username component, so we need to have both
behaviors available.
So instead, let's add a flag to control encoding slashes, which is the
behavior we want here, and use it when calling the code in this case.
Add a test for credential helper URLs using multiple slashes in the
path, which our test suite previously lacked, as well as one ensuring
that we handle usernames with slashes gracefully. Since we're testing
other percent-encoding handling, let's add one for non-ASCII UTF-8
characters as well.
Reported-by: Ilya Tretyakov <it@it3xl.ru>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach Git how to prompt the user for a good bug report: reproduction
steps, expected behavior, and actual behavior. Later, Git can learn how
to collect some diagnostic information from the repository.
If users can send us a well-written bug report which contains diagnostic
information we would otherwise need to ask the user for, we can reduce
the number of question-and-answer round trips between the reporter and
the Git contributor.
Users may also wish to send a report like this to their local "Git
expert" if they have put their repository into a state they are confused
by.
Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While the strbuf interface already provides functions to read a line
into it that completely replaces its current contents, we do not have an
interface that allows for appending lines without discarding current
contents.
Add a new function `strbuf_appendwholeline` that reads a line including
its terminating character into a strbuf non-destructively. This is a
preparatory step for git-update-ref(1) reading standard input line-wise
instead of as a block.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In some cases, a user will want to use a specific credential helper for
a wildcard pattern, such as https://*.corp.example.com. We have code
that handles this already with the urlmatch code, so let's use that
instead of our custom code.
Since the urlmatch code is a superset of our current matching in terms
of capabilities, there shouldn't be any cases of things that matched
previously that don't match now. However, in addition to wildcard
matching, we now use partial path matching, which can cause slightly
different behavior in the case that a helper applies to the prefix
(considering path components) of the remote URL. While different, this
is probably the behavior people were wanting anyway.
Since we're using the urlmatch code, we need to encode the components
we've gotten into a URL to match, so add a function to percent-encode
data and format the URL with it. We now also no longer need to the
custom code to match URLs, so let's remove it.
Additionally, the urlmatch code always looks for the best match, whereas
we want all matches for credential helpers to preserve existing
behavior. Let's add an optional field, select_fn, that lets us control
which items we want (in this case, all of them) and default it to the
best-match code that already exists for other users.
Signed-off-by: brian m. carlson <bk2204@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This helper supports the scenario where Git has a populated `strbuf` and
wants to let the user edit it interactively.
In `git add -p`, we will use this to allow interactive hunk editing: the
diff hunks are already in memory, but we need to write them out to a
file so that an editor can be launched, then read everything back once
the user is done editing.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The list-objects-filter API (used to create a sparse/lazy clone)
learned to take a combined filter specification.
* md/list-objects-filter-combo:
list-objects-filter-options: make parser void
list-objects-filter-options: clean up use of ALLOC_GROW
list-objects-filter-options: allow mult. --filter
strbuf: give URL-encoding API a char predicate fn
list-objects-filter-options: make filter_spec a string_list
list-objects-filter-options: move error check up
list-objects-filter: implement composite filters
list-objects-filter-options: always supply *errbuf
list-objects-filter: put omits set in filter struct
list-objects-filter: encapsulate filter components
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Currenly the data rate in throughput_string(...) method is
output by simple strbuf_humanise_bytes(...) call and '/s' append.
But for proper translation of such string the translator needs
full context.
Add strbuf_humanise_rate(...) method to properly print out
localizable version of data rate ('3.5 MiB/s' etc) with full context.
Strings with the units in strbuf_humanise_bytes(...) are marked
for translation.
Signed-off-by: Dimitriy Ryazantcev <dimitriy.ryazantcev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow callers to specify exactly what characters need to be URL-encoded
and which do not. This new API will be taken advantage of in a patch
later in this set.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Matthew DeVore <matvore@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git stash" rewritten in C.
* ps/stash-in-c: (28 commits)
tests: add a special setup where stash.useBuiltin is off
stash: optionally use the scripted version again
stash: add back the original, scripted `git stash`
stash: convert `stash--helper.c` into `stash.c`
stash: replace all `write-tree` child processes with API calls
stash: optimize `get_untracked_files()` and `check_changes()`
stash: convert save to builtin
stash: make push -q quiet
stash: convert push to builtin
stash: convert create to builtin
stash: convert store to builtin
stash: convert show to builtin
stash: convert list to builtin
stash: convert pop to builtin
stash: convert branch to builtin
stash: convert drop and clear to builtin
stash: convert apply to builtin
stash: mention options in `show` synopsis
stash: add tests for `git stash show` config
stash: rename test cases to be more descriptive
...
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Implement `strbuf_insertf()` and `strbuf_vinsertf()` to
insert data using a printf format string.
Original-idea-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Paul-Sebastian Ungureanu <ungureanupaulsebastian@gmail.com>
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Implement `strbuf_join_argv()` to join arguments
into a strbuf.
Signed-off-by: Paul-Sebastian Ungureanu <ungureanupaulsebastian@gmail.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Expanding '%n' and '%xNN' is generic functionality, so extract that from
the pretty.c formatter into a callback that can be reused.
No functional change intended
Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Rewrite "git rebase" in C.
* pk/rebase-in-c-3-acts:
builtin rebase: stop if `git am` is in progress
builtin rebase: actions require a rebase in progress
builtin rebase: support --edit-todo and --show-current-patch
builtin rebase: support --quit
builtin rebase: support --abort
builtin rebase: support --skip
builtin rebase: support --continue
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This commit adds the option `--continue` which is used to resume
rebase after merge conflicts. The code tries to stay as close to
the equivalent shell scripts found in `git-legacy-rebase.sh` as
possible.
When continuing a rebase, the state variables are read from state_dir.
Some of the state variables are not actually stored there, such as
`upstream`. The shell script version simply does not set them, but for
consistency, we unset them in the builtin version.
Signed-off-by: Pratik Karki <predatoramigo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up to use size_t/ssize_t when they are the right type.
* jk/size-t:
strbuf_humanise: use unsigned variables
pass st.st_size as hint for strbuf_readlink()
strbuf_readlink: use ssize_t
strbuf: use size_t for length in intermediate variables
reencode_string: use size_t for string lengths
reencode_string: use st_add/st_mult helpers
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All of the numeric formatting done by this function uses
"%u", but we pass in a signed "int". The actual range
doesn't matter here, since the conditional makes sure we're
always showing reasonably small numbers. And even gcc's
format-checker does not seem to mind. But it's potentially
confusing to a reader of the code to see the mismatch.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The return type of readlink() is ssize_t, not int. This
probably doesn't matter in practice, as it would require a
2GB symlink destination, but it doesn't hurt to be careful.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A few strbuf functions store the length of a strbuf in a
temporary variable. We should always use size_t for this, as
it's possible for a strbuf to exceed an "int" (e.g., a 2GB
string on a 64-bit system). This is unlikely in practice,
but we should try to behave sensibly on silly or malicious
input.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The iconv interface takes a size_t, which is the appropriate
type for an in-memory buffer. But our reencode_string_*
functions use integers, meaning we may get confusing results
when the sizes exceed INT_MAX. Let's use size_t
consistently.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In order to be sure we have enough space to use with any hash algorithm,
use GIT_MAX_HEXSZ to allocate space.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Developer support update, by using BUG() macro instead of die() to
mark codepaths that should not happen more clearly.
* js/use-bug-macro:
BUG_exit_code: fix sparse "symbol not declared" warning
Convert remaining die*(BUG) messages
Replace all die("BUG: ...") calls by BUG() ones
run-command: use BUG() to report bugs, not die()
test-tool: help verifying BUG() code paths
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Rename detection logic in "diff" family that is used in "merge" has
learned to guess when all of x/a, x/b and x/c have moved to z/a,
z/b and z/c, it is likely that x/d added in the meantime would also
want to move to z/d by taking the hint that the entire directory
'x' moved to 'z'. A bug causing dirty files involved in a rename
to be overwritten during merge has also been fixed as part of this
work. Incidentally, this also avoids updating a file in the
working tree after a (non-trivial) merge whose result matches what
our side originally had.
* en/rename-directory-detection-reboot: (36 commits)
merge-recursive: fix check for skipability of working tree updates
merge-recursive: make "Auto-merging" comment show for other merges
merge-recursive: fix remainder of was_dirty() to use original index
merge-recursive: fix was_tracked() to quit lying with some renamed paths
t6046: testcases checking whether updates can be skipped in a merge
merge-recursive: avoid triggering add_cacheinfo error with dirty mod
merge-recursive: move more is_dirty handling to merge_content
merge-recursive: improve add_cacheinfo error handling
merge-recursive: avoid spurious rename/rename conflict from dir renames
directory rename detection: new testcases showcasing a pair of bugs
merge-recursive: fix remaining directory rename + dirty overwrite cases
merge-recursive: fix overwriting dirty files involved in renames
merge-recursive: avoid clobbering untracked files with directory renames
merge-recursive: apply necessary modifications for directory renames
merge-recursive: when comparing files, don't include trees
merge-recursive: check for file level conflicts then get new name
merge-recursive: add computation of collisions due to dir rename & merging
merge-recursive: check for directory level conflicts
merge-recursive: add get_directory_renames()
merge-recursive: make a helper function for cleanup for handle_renames
...
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Before trying to apply directory renames to paths within the given
directories, we want to make sure that there aren't conflicts at the
file level either. If there aren't any, then get the new name from
any directory renames.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The new "checkout-encoding" attribute can ask Git to convert the
contents to the specified encoding when checking out to the working
tree (and the other way around when checking in).
* ls/checkout-encoding:
convert: add round trip check based on 'core.checkRoundtripEncoding'
convert: add tracing for 'working-tree-encoding' attribute
convert: check for detectable errors in UTF encodings
convert: add 'working-tree-encoding' attribute
utf8: add function to detect a missing UTF-16/32 BOM
utf8: add function to detect prohibited UTF-16/32 BOM
utf8: teach same_encoding() alternative UTF encoding names
strbuf: add a case insensitive starts_with()
strbuf: add xstrdup_toupper()
strbuf: remove unnecessary NUL assignment in xstrdup_tolower()
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In d8193743e08 (usage.c: add BUG() function, 2017-05-12), a new macro
was introduced to use for reporting bugs instead of die(). It was then
subsequently used to convert one single caller in 588a538ae55
(setup_git_env: convert die("BUG") to BUG(), 2017-05-12).
The cover letter of the patch series containing this patch
(cf 20170513032414.mfrwabt4hovujde2@sigill.intra.peff.net) is not
terribly clear why only one call site was converted, or what the plan
is for other, similar calls to die() to report bugs.
Let's just convert all remaining ones in one fell swoop.
This trick was performed by this invocation:
sed -i 's/die("BUG: /BUG("/g' $(git grep -l 'die("BUG' \*.c)
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This reverts commit e4bb62fa1eeee689744b413e29a50b4d1dae6886, reversing
changes made to 468165c1d8a442994a825f3684528361727cd8c0.
The topic appears to inflict severe regression in renaming merges,
even though the promise of it was that it would improve them.
We do not yet know which exact change in the topic was wrong, but in
the meantime, let's play it safe and revert it out of 'master'
before real Git-using projects are harmed.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Conversion from uchar[20] to struct object_id continues.
* bc/object-id: (36 commits)
convert: convert to struct object_id
sha1_file: introduce a constant for max header length
Convert lookup_replace_object to struct object_id
sha1_file: convert read_sha1_file to struct object_id
sha1_file: convert read_object_with_reference to object_id
tree-walk: convert tree entry functions to object_id
streaming: convert istream internals to struct object_id
tree-walk: convert get_tree_entry_follow_symlinks internals to object_id
builtin/notes: convert static functions to object_id
builtin/fmt-merge-msg: convert remaining code to object_id
sha1_file: convert sha1_object_info* to object_id
Convert remaining callers of sha1_object_info_extended to object_id
packfile: convert unpack_entry to struct object_id
sha1_file: convert retry_bad_packed_offset to struct object_id
sha1_file: convert assert_sha1_type to object_id
builtin/mktree: convert to struct object_id
streaming: convert open_istream to use struct object_id
sha1_file: convert check_sha1_signature to struct object_id
sha1_file: convert read_loose_object to use struct object_id
builtin/index-pack: convert struct ref_delta_entry to object_id
...
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Rename detection logic in "diff" family that is used in "merge" has
learned to guess when all of x/a, x/b and x/c have moved to z/a,
z/b and z/c, it is likely that x/d added in the meantime would also
want to move to z/d by taking the hint that the entire directory
'x' moved to 'z'. A bug causing dirty files involved in a rename
to be overwritten during merge has also been fixed as part of this
work.
* en/rename-directory-detection: (29 commits)
merge-recursive: ensure we write updates for directory-renamed file
merge-recursive: avoid spurious rename/rename conflict from dir renames
directory rename detection: new testcases showcasing a pair of bugs
merge-recursive: fix remaining directory rename + dirty overwrite cases
merge-recursive: fix overwriting dirty files involved in renames
merge-recursive: avoid clobbering untracked files with directory renames
merge-recursive: apply necessary modifications for directory renames
merge-recursive: when comparing files, don't include trees
merge-recursive: check for file level conflicts then get new name
merge-recursive: add computation of collisions due to dir rename & merging
merge-recursive: check for directory level conflicts
merge-recursive: add get_directory_renames()
merge-recursive: make a helper function for cleanup for handle_renames
merge-recursive: split out code for determining diff_filepairs
merge-recursive: make !o->detect_rename codepath more obvious
merge-recursive: fix leaks of allocated renames and diff_filepairs
merge-recursive: introduce new functions to handle rename logic
merge-recursive: move the get_renames() function
directory rename detection: tests for handling overwriting dirty files
directory rename detection: tests for handling overwriting untracked files
...
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"git worktree" learned move and remove subcommands.
* nd/worktree-move:
t2028: fix minor error and issues in newly-added "worktree move" tests
worktree remove: allow it when $GIT_WORK_TREE is already gone
worktree remove: new command
worktree move: refuse to move worktrees with submodules
worktree move: accept destination as directory
worktree move: new command
worktree.c: add update_worktree_location()
worktree.c: add validate_worktree()
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Convert find_unique_abbrev and find_unique_abbrev_r to each take a
pointer to struct object_id.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Convert the declaration and definition of strbuf_add_unique_abbrev to
make it take a pointer to struct object_id. Predeclare the struct in
strbuf.h, as cache.h includes strbuf.h before it declares the struct,
and otherwise the struct declaration would have the wrong scope.
Apply the following semantic patch, along with the standard object_id
transforms, to adjust the callers:
@@
expression E1, E2, E3;
@@
- strbuf_add_unique_abbrev(E1, E2.hash, E3);
+ strbuf_add_unique_abbrev(E1, &E2, E3);
@@
expression E1, E2, E3;
@@
- strbuf_add_unique_abbrev(E1, E2->hash, E3);
+ strbuf_add_unique_abbrev(E1, E2, E3);
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Check in a case insensitive manner if one string is a prefix of another
string.
This function is used in a subsequent commit.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If we encounter a read error, the user may want to report it
by looking at errno. However, our close() call may clobber
errno, leading to confusing results. Let's save and restore
it in the error case.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Create a copy of an existing string and make all characters upper case.
Similar xstrdup_tolower().
This function is used in a subsequent commit.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 3733e69464 (use xmallocz to avoid size arithmetic, 2016-02-22) we
allocate the buffer for the lower case string with xmallocz(). This
already ensures a NUL at the end of the allocated buffer.
Remove the unnecessary assignment.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before trying to apply directory renames to paths within the given
directories, we want to make sure that there aren't conflicts at the
file level either. If there aren't any, then get the new name from
any directory renames.
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Similar to "mv a b/", which is actually "mv a b/a", we extract basename
of source worktree and create a directory of the same name at
destination if dst path is a directory.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Bytes with high-bit set were encoded incorrectly and made
credential helper fail.
* jd/fix-strbuf-add-urlencode-bytes:
strbuf: fix urlencode format string on signed char
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Introduce a helper to simplify code to parse a common pattern that
expects either "--key" or "--key=<something>".
* cc/skip-to-optional-val:
t4045: reindent to make helpers readable
diff: add tests for --relative without optional prefix value
diff: use skip_to_optional_arg_default() in parsing --relative
diff: use skip_to_optional_arg_default()
diff: use skip_to_optional_arg()
index-pack: use skip_to_optional_arg()
git-compat-util: introduce skip_to_optional_arg()
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Leakfix.
* rs/strbuf-read-once-reset-length:
strbuf: release memory on read error in strbuf_read_once()
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Git credential fails with special char in password with
remote: Invalid username or password.
fatal: Authentication failed for
File ~/.git-credential contains badly urlencoded characters
%ffffffXX%ffffffYY instead of %XX%YY.
Add a cast to an unsigned char to fix urlencode use of %02x on a
char.
Signed-off-by: Julien Dusser <julien.dusser@free.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We often accept both a "--key" option and a "--key=<val>" option.
These options currently are parsed using something like:
if (!strcmp(arg, "--key")) {
/* do something */
} else if (skip_prefix(arg, "--key=", &arg)) {
/* do something with arg */
}
which is a bit cumbersome compared to just:
if (skip_to_optional_arg(arg, "--key", &arg)) {
/* do something with arg */
}
This also introduces skip_to_optional_arg_default() for the few
cases where something different should be done when the first
argument is exactly "--key" than when it is exactly "--key=".
In general it is better for UI consistency and simplicity if
"--key" and "--key=" do the same thing though, so that using
skip_to_optional_arg() should be encouraged compared to
skip_to_optional_arg_default().
Note that these functions can be used to parse any "key=value"
string where "key" is also considered as valid, not just
command line options.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If other strbuf add functions cause the first allocation and
subsequently encounter an error then they release the memory, restoring
the pristine state of the strbuf. That simplifies error handling for
callers.
Do the same in strbuf_read_once(), and do it also in case no bytes were
read -- which may or may not be an error as well, depending on the
caller.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A helper function to read a single whole line into strbuf
mistakenly triggered OOM error at EOF under certain conditions,
which has been fixed.
* rs/strbuf-getwholeline-fix:
strbuf: clear errno before calling getdelim(3)
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getdelim(3) returns -1 at the end of the file and if it encounters an
error, but sets errno only in the latter case. Set errno to zero before
calling it to avoid misdiagnosing an out-of-memory condition due to a
left-over value from some other function call.
Reported-by: Yaroslav Halchenko <yoh@onerussian.com>
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Andrzej Hunt
Junio C Hamano
Randall S. Becker
brian m. carlson
Emily Shaffer
Patrick Steinhardt
brian m. carlson
Johannes Schindelin
Dimitriy Ryazantcev
Matthew DeVore
Paul-Sebastian Ungureanu
Anders Waldenborg
Pratik Karki
Jeff King
Elijah Newren
Lars Schneider
Nguyễn Thái Ngọc Duy
Julien Dusser
Christian Couder
René Scharfe