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When parsing capabilities for the pack protocol, there are times we'll
want to compare the value of a capability to a NUL-terminated string.
Since the data we're reading will be space-terminated, not
NUL-terminated, we need a function that compares the two strings, but
also checks that they're the same length. Otherwise, if we used strncmp
to compare these strings, we might accidentally accept a parameter that
was a prefix of the expected value.
Add a function, xstrncmpz, that takes a NUL-terminated string and a
non-NUL-terminated string, plus a length, and compares them, ensuring
that they are the same length.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a future patch, we'll want to access multiple members from struct
packet_reader when parsing references. Therefore, have the ref parsing
code take pointers to struct reader instead of having to pass multiple
arguments to each function.
Rename the len variable to "linelen" to make it clearer what the
variable does in light of the variable change.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Document a capability that indicates which hash algorithms are in use by
both sides of a remote connection. Use the term "object-format", since
this is the term used for the repository extension as well.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The pattern here looking for failures is specific to SHA-1. Let's
create a variable that matches the regex or glob pattern for a path
within the objects directory.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Recent change to show files and line numbers of a breakage during
test (only available when running the tests with bash) were hurting
other shells with syntax errors, which has been corrected.
* cb/test-bash-lineno-fix:
t/test_lib: avoid naked bash arrays in file_lineno
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The basic test did not honor $TEST_SHELL_PATH setting, which has
been corrected.
* cb/t0000-use-the-configured-shell:
t/t0000-basic: make sure subtests also use TEST_SHELL_PATH
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Doc update.
* bc/doc-credential-helper-value:
docs: document credential.helper allowed values
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Doc update.
* dl/doc-stash-remove-mention-of-reflog:
Doc: reference the "stash list" in autostash docs
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The <stdlib.h> header on NetBSD brings in its own definition of
hmac() function (eek), which conflicts with our own and unrelated
function with the same name. Our function has been renamed to work
around the issue.
* cb/avoid-colliding-with-netbsd-hmac:
builtin/receive-pack: avoid generic function name hmac()
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"git restore --staged --worktree" now defaults to take the contents
out of "HEAD", instead of erring out.
* es/restore-staged-from-head-by-default:
restore: default to HEAD when combining --staged and --worktree
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The coding guideline for shell scripts instructed to refer to a
variable with dollar-sign inside arithmetic expansion to work
around a bug in old versions of dash, which is a thing of the past.
Now we are not forbidden from writing $((var+1)).
* jk/arith-expansion-coding-guidelines:
CodingGuidelines: drop arithmetic expansion advice to use "$x"
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The sparse-checkout patterns have been forbidden from excluding all
paths, leaving an empty working tree, for a long time. This
limitation has been lifted.
* ds/sparse-allow-empty-working-tree:
sparse-checkout: stop blocking empty workdirs
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Fix a leak noticed by fuzzer.
* jt/commit-graph-plug-memleak:
commit-graph: avoid memory leaks
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"git branch" and other "for-each-ref" variants accepted multiple
--sort=<key> options in the increasing order of precedence, but it
had a few breakages around "--ignore-case" handling, and tie-breaking
with the refname, which have been fixed.
* jk/for-each-ref-multi-key-sort-fix:
ref-filter: apply fallback refname sort only after all user sorts
ref-filter: apply --ignore-case to all sorting keys
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The samples in the credential documentation has been updated to
make it clear that we depict what would appear in the .git/config
file, by adding appropriate quotes as needed..
* jk/credential-sample-update:
gitcredentials(7): make shell-snippet example more realistic
gitcredentials(7): clarify quoting of helper examples
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The userdiff patterns for Markdown documents have been added.
* ah/userdiff-markdown:
userdiff: support Markdown
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With the recent tightening of the code that is used to parse
various parts of a URL for use in the credential subsystem, a
hand-edited credential-store file causes the credential helper to
die, which is a bit too harsh to the users. Demote the error
behaviour to just ignore and keep using well-formed lines instead.
* cb/credential-store-ignore-bogus-lines:
credential-store: ignore bogus lines from store file
credential-store: document the file format a bit more
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In error messages that "git switch" mentions its option to create a
new branch, "-b/-B" options were shown, where "-c/-C" options
should be, which has been corrected.
* dl/switch-c-option-in-error-message:
switch: fix errors and comments related to -c and -C
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662f9cf154 (tests: when run in Bash, annotate test failures with file
name/line number, 2020-04-11), introduces a way to report the location
(file:lineno) of a failed test case by traversing the bash callstack.
The implementation requires bash and uses shell arrays and is therefore
protected by a guard but NetBSD sh will still have to parse the function
and therefore will result in:
** t0000-basic.sh ***
./test-lib.sh: 681: Syntax error: Bad substitution
Enclose the bash specific code inside an eval to avoid parsing errors in
the same way than 5826b7b595 (test-lib: check Bash version for '-x'
without using shell arrays, 2019-01-03)
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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3f824e91c8 (t/Makefile: introduce TEST_SHELL_PATH, 2017-12-08) allows for
setting a shell for running the tests, but the generated subtests weren't
updated.
Correct that and while at it update it to use write_script.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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gitcredentials(7) already mentions several possible invocations that one
can use as the value for credential.helper. However, many people are
not aware that there are other options than a simple credential helper
name, so let's place some explanatory text in the documentation for
credential.helper as well.
We still refer the user to gitcredential(7) for additional explanations
and helpful examples.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In documentation pertaining to autostash behavior, we refer to the
"stash reflog". This description is too low-level as the reflog refers
to an implementation detail of how the stash works and, for end-users,
they do not need to be aware of this at all.
Change references of "stash reflog" to "stash list", which should
provide more accessible terminology for end-users.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The same as js/partial-urlmatch-2.17, built on more recent codebase
to avoid unnecessary merge conflicts.
* js/partial-urlmatch:
credential: handle `credential.<partial-URL>.<key>` again
credential: optionally allow partial URLs in credential_from_url_gently()
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Recent updates broke parsing of "credential.<url>.<key>" where
<url> is not a full URL (e.g. [credential "https://"] helper = ...)
stopped working, which has been corrected.
* js/partial-urlmatch-2.17:
credential: handle `credential.<partial-URL>.<key>` again
credential: optionally allow partial URLs in credential_from_url_gently()
credential: fix grammar
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Some of the files commit-graph subsystem keeps on disk did not
correctly honor the core.sharedRepository settings and some were
left read-write.
* tb/commit-graph-perm-bits:
commit-graph.c: make 'commit-graph-chain's read-only
commit-graph.c: ensure graph layers respect core.sharedRepository
commit-graph.c: write non-split graphs as read-only
lockfile.c: introduce 'hold_lock_file_for_update_mode'
tempfile.c: introduce 'create_tempfile_mode'
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Code cleanup.
* dl/push-recurse-submodules-fix:
push: unset PARSE_OPT_OPTARG for --recurse-submodules
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Code cleanup.
* dl/opt-callback-cleanup:
Use OPT_CALLBACK and OPT_CALLBACK_F
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Test update.
* jk/test-fail-prereqs-fix:
t0000: disable GIT_TEST_FAIL_PREREQS in sub-tests
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The approxidate parser learns to parse seconds with fraction.
* dd/iso-8601-updates:
date.c: allow compact version of ISO-8601 datetime
date.c: skip fractional second part of ISO-8601
date.c: validate and set time in a helper function
date.c: s/is_date/set_date/
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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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By default, files are restored from the index for --worktree, and from
HEAD for --staged. When --worktree and --staged are combined, --source
must be specified to disambiguate the restore source[1], thus making it
cumbersome to restore a file in both the worktree and the index.
However, HEAD is also a reasonable default for --worktree when combined
with --staged, so make it the default anytime --staged is used (whether
combined with --worktree or not).
[1]: Due to an oversight, the --source requirement, though documented,
is not actually enforced.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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fabec2c5c3 (builtin/receive-pack: switch to use the_hash_algo, 2019-08-18)
renames hmac_sha1 to hmac, as it was updated to use the hash function used
by git (which won't be sha1 in the future).
hmac() is provided by NetBSD >= 8 libc and therefore conflicts as shown by :
builtin/receive-pack.c:421:13: error: conflicting types for 'hmac'
static void hmac(unsigned char *out,
^~~~
In file included from ./git-compat-util.h:172:0,
from ./builtin.h:4,
from builtin/receive-pack.c:1:
/usr/include/stdlib.h:305:10: note: previous declaration of 'hmac' was here
ssize_t hmac(const char *, const void *, size_t, const void *, size_t, void *,
^~~~
Rename it again to hmac_hash to reflect it will use the git's defined hash
function and avoid the conflict, while at it update a comment to better
describe the HMAC function that was used.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A fuzzer running on the entry point provided by fuzz-commit-graph.c
revealed a memory leak when parse_commit_graph() creates a struct
bloom_filter_settings and then returns early due to error. Fix that
error by always freeing that struct first (if it exists) before
returning early due to error.
While making that change, I also noticed another possible memory leak -
when the BLOOMDATA chunk is provided but not BLOOMINDEXES. Also fix that
error.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 9e468334b4 (ref-filter: fallback on alphabetical comparison,
2015-10-30) taught ref-filter's sort to fallback to comparing refnames.
But it did it at the wrong level, overriding the comparison result for a
single "--sort" key from the user, rather than after all sort keys have
been exhausted.
This worked correctly for a single "--sort" option, but not for multiple
ones. We'd break any ties in the first key with the refname and never
evaluate the second key at all.
To make matters even more interesting, we only applied this fallback
sometimes! For a field like "taggeremail" which requires a string
comparison, we'd truly return the result of strcmp(), even if it was 0.
But for numerical "value" fields like "taggerdate", we did apply the
fallback. And that's why our multiple-sort test missed this: it uses
taggeremail as the main comparison.
So let's start by adding a much more rigorous test. We'll have a set of
commits expressing every combination of two tagger emails, dates, and
refnames. Then we can confirm that our sort is applied with the correct
precedence, and we'll be hitting both the string and value comparators.
That does show the bug, and the fix is simple: moving the fallback to
the outer compare_refs() function, after all ref_sorting keys have been
exhausted.
Note that in the outer function we don't have an "ignore_case" flag, as
it's part of each individual ref_sorting element. It's debatable what
such a fallback should do, since we didn't use the user's keys to match.
But until now we have been trying to respect that flag, so the
least-invasive thing is to try to continue to do so. Since all callers
in the current code either set the flag for all keys or for none, we can
just pull the flag from the first key. In a hypothetical world where the
user really can flip the case-insensitivity of keys separately, we may
want to extend the code to distinguish that case from a blanket
"--ignore-case".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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All of the ref-filter users (for-each-ref, branch, and tag) take an
--ignore-case option which makes filtering and sorting case-insensitive.
However, this option was applied only to the first element of the
ref_sorting list. So:
git for-each-ref --ignore-case --sort=refname
would do what you expect, but:
git for-each-ref --ignore-case --sort=refname --sort=taggername
would sort the primary key (taggername) case-insensitively, but sort the
refname case-sensitively. We have two options here:
- teach callers to set ignore_case on the whole list
- replace the ref_sorting list with a struct that contains both the
list of sorting keys, as well as options that apply to _all_
keys
I went with the first one here, as it gives more flexibility if we later
want to let the users set the flag per-key (presumably through some
special syntax when defining the key; for now it's all or nothing
through --ignore-case).
The new test covers this by sorting on both tagger and subject
case-insensitively, which should compare "a" and "A" identically, but
still sort them before "b" and "B". We'll break ties by sorting on the
refname to give ourselves a stable output (this is actually supposed to
be done automatically, but there's another bug which will be fixed in
the next commit).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the error condition when updating the sparse-checkout leaves
an empty working directory.
This behavior was added in 9e1afb167 (sparse checkout: inhibit empty
worktree, 2009-08-20). The comment was added in a7bc906f2 (Add
explanation why we do not allow to sparse checkout to empty working
tree, 2011-09-22) in response to a "dubious" comment in 84563a624
(unpack-trees.c: cosmetic fix, 2010-12-22).
With the recent "cone mode" and "git sparse-checkout init [--cone]"
command, it is common to set a reasonable sparse-checkout pattern
set of
/*
!/*/
which matches only files at root. If the repository has no such files,
then their "git sparse-checkout init" command will fail.
Now that we expect this to be a common pattern, we should not have the
commands fail on an empty working directory. If it is a confusing
result, then the user can recover with "git sparse-checkout disable"
or "git sparse-checkout set". This is especially simple when using cone
mode.
Reported-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The advice to use "$x" rather than "x" in arithmetric expansion was
working around a dash bug fixed in 0.5.4. Even Debian oldstable has
0.5.8 these days. And in the meantime, we've added almost two dozen
instances of the "x" form which you can find with:
git grep '$(([a-z]'
and nobody seems to have complained. Let's declare this workaround
obsolete and simplify our style guide.
Helped-by: Danh Doan <congdanhqx@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With the added checks for invalid URLs in credentials, any locally
modified store files which might have empty lines or even comments
were reported[1] failing to parse as valid credentials.
Instead of doing a hard check for credentials, do a soft one and
therefore avoid the reported fatal error.
While at it add tests for all known corruptions that are currently
ignored to keep track of them and avoid the risk of regressions.
[1] https://stackoverflow.com/a/61420852/5005936
Reported-by: Dirk <dirk@ed4u.de>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Based-on-patch-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It's typical to find Markdown documentation alongside source code, and
having better context for documentation changes is useful; see also
commit 69f9c87d4 (userdiff: add support for Fountain documents,
2015-07-21).
The pattern is based on the CommonMark specification 0.29, section 4.2
<https://spec.commonmark.org/> but doesn't match empty headings, as
seeing them in a hunk header is unlikely to be useful.
Only ATX headings are supported, as detecting setext headings would
require printing the line before a pattern matches, or matching a
multiline pattern. The word-diff pattern is the same as the pattern for
HTML, because many Markdown parsers accept inline HTML.
Signed-off-by: Ash Holland <ash@sorrel.sh>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The upload-pack protocol v2 gave up too early before finding a
common ancestor, resulting in a wasteful fetch from a fork of a
project. This has been corrected to match the behaviour of v0
protocol.
* jt/v2-fetch-nego-fix:
fetch-pack: in protocol v2, reset in_vain upon ACK
fetch-pack: in protocol v2, in_vain only after ACK
fetch-pack: return enum from process_acks()
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Error and verbose trace messages from "git push" did not redact
credential material embedded in URLs.
* js/anonymise-push-url-in-errors:
push: anonymize URLs in error messages and warnings
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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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Incompatible options "--root" and "--fork-point" of "git rebase"
have been marked and documented as being incompatible.
* en/rebase-root-and-fork-point-are-incompatible:
rebase: display an error if --root and --fork-point are both provided
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Recent update to Homebrew used by macOS folks breaks build by
moving gettext library and necessary headers.
* ds/build-homebrew-gettext-fix:
macOS/brew: let the build find gettext headers/libraries/msgfmt
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Compilation fix.
* dd/sparse-fixes:
progress.c: silence cgcc suggestion about internal linkage
graph.c: limit linkage of internal variable
compat/regex: move stdlib.h up in inclusion chain
test-parse-pathspec-file.c: s/0/NULL/ for pointer type
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Docfix.
* mt/doc-worktree-ref:
config doc: fix reference to config.worktree info
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Gitweb updates.
* eb/gitweb-more-trailers:
gitweb: Recognize *-to and Closes/Fixes trailers
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