builtin/show-ref: add new mode to check for reference existence
While we have multiple ways to show the value of a given reference, we
do not have any way to check whether a reference exists at all. While
commands like git-rev-parse(1) or git-show-ref(1) can be used to check
for reference existence in case the reference resolves to something
sane, neither of them can be used to check for existence in some other
scenarios where the reference does not resolve cleanly:
- References which have an invalid name cannot be resolved.
- References to nonexistent objects cannot be resolved.
- Dangling symrefs can be resolved via git-symbolic-ref(1), but this
requires the caller to special case existence checks depending on
whether or not a reference is symbolic or direct.
Furthermore, git-rev-list(1) and other commands do not let the caller
distinguish easily between an actually missing reference and a generic
error.
Taken together, this seems like sufficient motivation to introduce a
separate plumbing command to explicitly check for the existence of a
reference without trying to resolve its contents.
This new command comes in the form of `git show-ref --exists`. This
new mode will exit successfully when the reference exists, with a
specific exit code of 2 when it does not exist, or with 1 when there
has been a generic error.
Note that the only way to properly implement this command is by using
the internal `refs_read_raw_ref()` function. While the public function
`refs_resolve_ref_unsafe()` can be made to behave in the same way by
passing various flags, it does not provide any way to obtain the errno
with which the reference backend failed when reading the reference. As
such, it becomes impossible for us to distinguish generic errors from
the explicit case where the reference wasn't found.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/show-ref: explicitly spell out different modes in synopsis
The synopsis treats the `--verify` and the implicit mode the same. They
are slightly different though:
- They accept different sets of flags.
- The implicit mode accepts patterns while the `--verify` mode
accepts references.
Split up the synopsis for these two modes such that we can disambiguate
those differences.
While at it, drop "--quiet" from the pattern mode's synopsis. It does
not make a lot of sense to list patterns, but squelch the listing output
itself. The description for "--quiet" is adapted accordingly.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/show-ref: ensure mutual exclusiveness of subcommands
The git-show-ref(1) command has three different modes, of which one is
implicit and the other two can be chosen explicitly by passing a flag.
But while these modes are standalone and cause us to execute completely
separate code paths, we gladly accept the case where a user asks for
both `--exclude-existing` and `--verify` at the same time even though it
is not obvious what will happen. Spoiler: we ignore `--verify` and
execute the `--exclude-existing` mode.
Let's explicitly detect this invalid usage and die in case both modes
were requested.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/show-ref: refactor options for patterns subcommand
The patterns subcommand is the last command that still uses global
variables to track its options. Convert it to use a structure instead
with the same motivation as preceding commits.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/show-ref: stop using global vars for `show_one()`
The `show_one()` function implicitly receives a bunch of options which
are tracked via global variables. This makes it hard to see which
subcommands of git-show-ref(1) actually make use of these options.
Introduce a `show_one_options` structure that gets passed down to this
function. This allows us to get rid of more global state and makes it
more explicit which subcommands use those options.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/show-ref: stop using global variable to count matches
When passing patterns to git-show-ref(1) we're checking whether any
reference matches -- if none do, we indicate this condition via an
unsuccessful exit code.
We're using a global variable to count these matches, which is required
because the counter is getting incremented in a callback function. But
now that we have the `struct show_ref_data` in place, we can get rid of
the global variable and put the counter in there instead.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
It's not immediately obvious options which options are applicable to
what subcommand in git-show-ref(1) because all options exist as global
state. This can easily cause confusion for the reader.
Refactor options for the `--exclude-existing` subcommand to be contained
in a separate structure. This structure is stored on the stack and
passed down as required. Consequently, it clearly delimits the scope of
those options and requires the reader to worry less about global state.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/show-ref: fix dead code when passing patterns
When passing patterns to `git show-ref` we have some code that will
cause us to die if `verify && !quiet` is true. But because `verify`
indicates a different subcommand of git-show-ref(1) that causes us to
execute `cmd_show_ref__verify()` and not `cmd_show_ref__patterns()`, the
condition cannot ever be true.
Let's remove this dead code.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fix a leaking string buffer in `git show-ref --exclude-existing`. While
the buffer is technically not leaking because its variable is declared
as static, there is no inherent reason why it should be.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
While not immediately obvious, git-show-ref(1) actually implements three
different subcommands:
- `git show-ref <patterns>` can be used to list references that
match a specific pattern.
- `git show-ref --verify <refs>` can be used to list references.
These are _not_ patterns.
- `git show-ref --exclude-existing` can be used as a filter that
reads references from standard input, performing some conversions
on each of them.
Let's make this more explicit in the code by splitting up the three
subcommands into separate functions. This also allows us to address the
confusingly named `patterns` variable, which may hold either patterns or
reference names.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/show-ref: convert pattern to a local variable
The `pattern` variable is a global variable that tracks either the
reference names (not patterns!) for the `--verify` mode or the patterns
for the non-verify mode. This is a bit confusing due to the slightly
different meanings.
Convert the variable to be local. While this does not yet fix the double
meaning of the variable, this change allows us to address it in a
subsequent patch more easily by explicitly splitting up the different
subcommands of git-show-ref(1).
Note that we introduce a `struct show_ref_data` to pass the patterns to
`show_ref()`. While this is overengineered now, we will extend this
structure in a subsequent patch.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Karthik Nayak [Fri, 27 Oct 2023 07:59:29 +0000 (09:59 +0200)]
rev-list: add commit object support in `--missing` option
The `--missing` object option in rev-list currently works only with
missing blobs/trees. For missing commits the revision walker fails with
a fatal error.
Let's extend the functionality of `--missing` option to also support
commit objects. This is done by adding a `missing_objects` field to
`rev_info`. This field is an `oidset` to which we'll add the missing
commits as we encounter them. The revision walker will now continue the
traversal and call `show_commit()` even for missing commits. In rev-list
we can then check if the commit is a missing commit and call the
existing code for parsing `--missing` objects.
A scenario where this option would be used is to find the boundary
objects between different object directories. Consider a repository with
a main object directory (GIT_OBJECT_DIRECTORY) and one or more alternate
object directories (GIT_ALTERNATE_OBJECT_DIRECTORIES). In such a
repository, using the `--missing=print` option while disabling the
alternate object directory allows us to find the boundary objects
between the main and alternate object directory.
Helped-by: Patrick Steinhardt <ps@pks.im> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Karthik Nayak <karthik.188@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Karthik Nayak [Thu, 26 Oct 2023 10:11:08 +0000 (12:11 +0200)]
rev-list: move `show_commit()` to the bottom
The `show_commit()` function already depends on `finish_commit()`, and
in the upcoming commit, we'll also add a dependency on
`finish_object__ma()`. Since in C symbols must be declared before
they're used, let's move `show_commit()` below both `finish_commit()`
and `finish_object__ma()`, so the code is cleaner as a whole without the
need for declarations.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Karthik Nayak [Thu, 26 Oct 2023 10:11:07 +0000 (12:11 +0200)]
revision: rename bit to `do_not_die_on_missing_objects`
The bit `do_not_die_on_missing_tree` is used in revision.h to ensure the
revision walker does not die when encountering a missing tree. This is
currently exclusively set within `builtin/rev-list.c` to ensure the
`--missing` option works with missing trees.
In the upcoming commits, we will extend `--missing` to also support
missing commits. So let's rename the bit to
`do_not_die_on_missing_objects`, which is object type agnostic and can
be used for both trees/commits.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 1 Nov 2023 03:06:55 +0000 (12:06 +0900)]
Merge branch 'ps/do-not-trust-commit-graph-blindly-for-existence' into kn/rev-list-missing-fix
* ps/do-not-trust-commit-graph-blindly-for-existence:
commit: detect commits that exist in commit-graph but not in the ODB
commit-graph: introduce envvar to disable commit existence checks
commit: detect commits that exist in commit-graph but not in the ODB
Commit graphs can become stale and contain references to commits that do
not exist in the object database anymore. Theoretically, this can lead
to a scenario where we are able to successfully look up any such commit
via the commit graph even though such a lookup would fail if done via
the object database directly.
As the commit graph is mostly intended as a sort of cache to speed up
parsing of commits we do not want to have diverging behaviour in a
repository with and a repository without commit graphs, no matter
whether they are stale or not. As commits are otherwise immutable, the
only thing that we really need to care about is thus the presence or
absence of a commit.
To address potentially stale commit data that may exist in the graph,
our `lookup_commit_in_graph()` function will check for the commit's
existence in both the commit graph, but also in the object database. So
even if we were able to look up the commit's data in the graph, we would
still pretend as if the commit didn't exist if it is missing in the
object database.
We don't have the same safety net in `parse_commit_in_graph_one()`
though. This function is mostly used internally in "commit-graph.c"
itself to validate the commit graph, and this usage is fine. We do
expose its functionality via `parse_commit_in_graph()` though, which
gets called by `repo_parse_commit_internal()`, and that function is in
turn used in many places in our codebase.
For all I can see this function is never used to directly turn an object
ID into a commit object without additional safety checks before or after
this lookup. What it is being used for though is to walk history via the
parent chain of commits. So when commits in the parent chain of a graph
walk are missing it is possible that we wouldn't notice if that missing
commit was part of the commit graph. Thus, a query like `git rev-parse
HEAD~2` can succeed even if the intermittent commit is missing.
It's unclear whether there are additional ways in which such stale
commit graphs can lead to problems. In any case, it feels like this is a
bigger bug waiting to happen when we gain additional direct or indirect
callers of `repo_parse_commit_internal()`. So let's fix the inconsistent
behaviour by checking for object existence via the object database, as
well.
This check of course comes with a performance penalty. The following
benchmarks have been executed in a clone of linux.git with stable tags
added:
Benchmark 1: git -c core.commitGraph=true rev-list --topo-order --all (git = master)
Time (mean ± σ): 2.913 s ± 0.018 s [User: 2.363 s, System: 0.548 s]
Range (min … max): 2.894 s … 2.950 s 10 runs
Benchmark 2: git -c core.commitGraph=true rev-list --topo-order --all (git = pks-commit-graph-inconsistency)
Time (mean ± σ): 3.834 s ± 0.052 s [User: 3.276 s, System: 0.556 s]
Range (min … max): 3.780 s … 3.961 s 10 runs
Benchmark 3: git -c core.commitGraph=false rev-list --topo-order --all (git = master)
Time (mean ± σ): 13.841 s ± 0.084 s [User: 13.152 s, System: 0.687 s]
Range (min … max): 13.714 s … 13.995 s 10 runs
Benchmark 4: git -c core.commitGraph=false rev-list --topo-order --all (git = pks-commit-graph-inconsistency)
Time (mean ± σ): 13.762 s ± 0.116 s [User: 13.094 s, System: 0.667 s]
Range (min … max): 13.645 s … 14.038 s 10 runs
Summary
git -c core.commitGraph=true rev-list --topo-order --all (git = master) ran
1.32 ± 0.02 times faster than git -c core.commitGraph=true rev-list --topo-order --all (git = pks-commit-graph-inconsistency)
4.72 ± 0.05 times faster than git -c core.commitGraph=false rev-list --topo-order --all (git = pks-commit-graph-inconsistency)
4.75 ± 0.04 times faster than git -c core.commitGraph=false rev-list --topo-order --all (git = master)
We look at a ~30% regression in general, but in general we're still a
whole lot faster than without the commit graph. To counteract this, the
new check can be turned off with the `GIT_COMMIT_GRAPH_PARANOIA` envvar.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
commit-graph: introduce envvar to disable commit existence checks
Our `lookup_commit_in_graph()` helper tries to look up commits from the
commit graph and, if it doesn't exist there, falls back to parsing it
from the object database instead. This is intended to speed up the
lookup of any such commit that exists in the database. There is an edge
case though where the commit exists in the graph, but not in the object
database. To avoid returning such stale commits the helper function thus
double checks that any such commit parsed from the graph also exists in
the object database. This makes the function safe to use even when
commit graphs aren't updated regularly.
We're about to introduce the same pattern into other parts of our code
base though, namely `repo_parse_commit_internal()`. Here the extra
sanity check is a bit of a tougher sell: `lookup_commit_in_graph()` was
a newly introduced helper, and as such there was no performance hit by
adding this sanity check. If we added `repo_parse_commit_internal()`
with that sanity check right from the beginning as well, this would
probably never have been an issue to begin with. But by retrofitting it
with this sanity check now we do add a performance regression to
preexisting code, and thus there is a desire to avoid this or at least
give an escape hatch.
In practice, there is no inherent reason why either of those functions
should have the sanity check whereas the other one does not: either both
of them are able to detect this issue or none of them should be. This
also means that the default of whether we do the check should likely be
the same for both. To err on the side of caution, we thus rather want to
make `repo_parse_commit_internal()` stricter than to loosen the checks
that we already have in `lookup_commit_in_graph()`.
The escape hatch is added in the form of a new GIT_COMMIT_GRAPH_PARANOIA
environment variable that mirrors GIT_REF_PARANOIA. If enabled, which is
the default, we will double check that commits looked up in the commit
graph via `lookup_commit_in_graph()` also exist in the object database.
This same check will also be added in `repo_parse_commit_internal()`.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Tue, 31 Oct 2023 05:23:29 +0000 (14:23 +0900)]
test framework: further deprecate test_i18ngrep
As an attempt to come up with a useful mechanism to ensure that
certain messages are left untranslated [*], we earlier wrote
GIT_TEST_GETTEXT_POISON off as a failed experiment.
But the output from the test helper was easier to use while
debugging failed tests, compared to the same test writtein with the
plain-vanilla "grep". Especially when a test that expects a certain
string to appear in the output (e.g. "this test must fail with this
message") fails, "grep message output" would just silently fail and
in a &&-chained sequence of commands, it is hard to tell which step
failed. test_i18ngrep explicitly said "we wanted to see a line that
match this pattern but did not see a hit in this file".
What we have as test_i18ngrep in our tree still retains this verbose
output (even though we got rid of the "poison" support). Let's
rename it to test_grep (because it is no longer about i18n at all)
and then make test_i18ngrep a thin wrapper around it. Existing
callers of test_i18ngrep can be mechanically rewritten to instead
use test_grep over time, but it does not have to be done in this
commit.
[Footnote]
* The idea was that human-facing messages are often translated, but
there are messages that should never be translated. We use
"grep" only for the latter kind of messages, and then run tests
in "poison" mode that spew garbage for translatable messages. If
such a test run fails, it means these messages tested with "grep"
were marked for translation by mistake. test_i18ngrep was to be
used for other messages that are to be translated, and was to
always "succeed" when runing under the "poison" mode.
Robert Coup [Tue, 17 Oct 2023 21:12:47 +0000 (21:12 +0000)]
upload-pack: add tracing for fetches
Information on how users are accessing hosted repositories can be
helpful to server operators. For example, being able to broadly
differentiate between fetches and initial clones; the use of shallow
repository features; or partial clone filters.
a29263c (fetch-pack: add tracing for negotiation rounds, 2022-08-02)
added some information on have counts to fetch-pack itself to help
diagnose negotiation; but from a git-upload-pack (server) perspective,
there's no means of accessing such information without using
GIT_TRACE_PACKET to examine the protocol packets.
Improve this by emitting a Trace2 JSON event from upload-pack with
summary information on the contents of a fetch request.
* haves, wants, and want-ref counts can help determine (broadly) between
fetches and clones, and the use of single-branch, etc.
* shallow clone depth, tip counts, and deepening options.
* any partial clone filter type.
Signed-off-by: Robert Coup <robert@coup.net.nz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The codepath to handle recipient addresses `git send-email
--compose` learns from the user was completely broken, which has
been corrected.
* jk/send-email-fix-addresses-from-composed-messages:
send-email: handle to/cc/bcc from --compose message
Revert "send-email: extract email-parsing code into a subroutine"
doc/send-email: mention handling of "reply-to" with --compose
Junio C Hamano [Sun, 29 Oct 2023 22:09:58 +0000 (07:09 +0900)]
Merge branch 'ob/rebase-cleanup'
Code clean-up.
* ob/rebase-cleanup:
rebase: move parse_opt_keep_empty() down
rebase: handle --strategy via imply_merge() as well
rebase: simplify code related to imply_merge()
Junio C Hamano [Sun, 29 Oct 2023 22:09:55 +0000 (07:09 +0900)]
Merge branch 'sn/typo-grammo-phraso-fixes'
Many typos, ungrammatical sentences and wrong phrasing have been
fixed.
* sn/typo-grammo-phraso-fixes:
t/README: fix multi-prerequisite example
doc/gitk: s/sticked/stuck/
git-jump: admit to passing merge mode args to ls-files
doc/diff-options: improve wording of the log.diffMerges mention
doc: fix some typos, grammar and wording issues
René Scharfe [Sat, 28 Oct 2023 11:58:41 +0000 (13:58 +0200)]
reflog: fix expire --single-worktree
33d7bdd645 (builtin/reflog.c: use parse-options api for expire, delete
subcommands, 2022-01-06) broke the option --single-worktree of git
reflog expire and added a non-printable short flag for it, presumably by
accident. While before it set the variable "all_worktrees" to 0, now it
sets it to 1, its default value. --no-single-worktree is required now
to set it to 0.
Fix it by replacing the variable with one that has the opposite meaning,
to avoid the negation and its potential for confusion. The new variable
"single_worktree" directly captures whether --single-worktree was given.
Also remove the unprintable short flag SOH (start of heading) because it
is undocumented, hard to use and is likely to have been added by mistake
in connection with the negation bug above.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Sat, 28 Oct 2023 11:58:07 +0000 (13:58 +0200)]
am, rebase: fix arghelp syntax of --empty
Use parentheses and pipes to present alternatives in the argument help
for the --empty options of git am and git rebase, like in the rest of
the documentation.
While at it remove a stray use of the enum empty_action value
STOP_ON_EMPTY_COMMIT to indicate that no short option is present.
While it has a value of 0 and thus there is no user-visible change,
that enum is not meant to hold short option characters. Hard-code 0,
like we do for other options without a short option.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Sat, 28 Oct 2023 11:57:44 +0000 (13:57 +0200)]
am: simplify --show-current-patch handling
Let the parse-options code detect and handle the use of options that are
incompatible with --show-current-patch. This requires exposing the
distinction between the "raw" and "diff" sub-modes. Do that by
splitting the mode RESUME_SHOW_PATCH into RESUME_SHOW_PATCH_RAW and
RESUME_SHOW_PATCH_DIFF and stop tracking sub-modes in a separate struct.
The result is a simpler callback function and more precise error
messages. The original reports a spurious argument or a NULL pointer:
$ git am --show-current-patch --show-current-patch=diff
error: options '--show-current-patch=diff' and '--show-current-patch=raw' cannot be used together
$ git am --show-current-patch=diff --show-current-patch
error: options '--show-current-patch=(null)' and '--show-current-patch=diff' cannot be used together
With this patch we get the more precise:
$ git am --show-current-patch --show-current-patch=diff
error: --show-current-patch=diff is incompatible with --show-current-patch
$ git am --show-current-patch=diff --show-current-patch
error: --show-current-patch is incompatible with --show-current-patch=diff
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
René Scharfe [Sat, 28 Oct 2023 11:53:01 +0000 (13:53 +0200)]
parse-options: make CMDMODE errors more precise
Only a single PARSE_OPT_CMDMODE option can be specified for the same
variable at the same time. This is enforced by get_value(), but the
error messages are imprecise in three ways:
1. If a non-PARSE_OPT_CMDMODE option changes the value variable of a
PARSE_OPT_CMDMODE option then an ominously vague message is shown:
Fortunately this can currently only happen in the test helper; actual
Git commands don't share the same variable for the value of options with
and without the flag PARSE_OPT_CMDMODE.
2. If there are multiple options with the same value (synonyms), then
the one that is defined first is shown rather than the one actually
given on the command line, which is confusing:
$ git am --resolved --quit
error: option `quit' is incompatible with --continue
3. Arguments of PARSE_OPT_CMDMODE options are not handled by the
parse-option machinery. This is left to the callback function. We
currently only have a single affected option, --show-current-patch of
git am. Errors for it can show an argument that was not actually given
on the command line:
$ git am --show-current-patch --show-current-patch=diff
error: options '--show-current-patch=diff' and '--show-current-patch=raw' cannot be used together
The options --show-current-patch and --show-current-patch=raw are
synonyms, but the error accuses the user of input they did not actually
made. Or it can awkwardly print a NULL pointer:
$ git am --show-current-patch=diff --show-current-patch
error: options '--show-current-patch=(null)' and '--show-current-patch=diff' cannot be used together
The reasons for these shortcomings is that the current code checks
incompatibility only when encountering a PARSE_OPT_CMDMODE option at the
command line, and that it searches the previous incompatible option by
value.
Fix the first two points by checking all PARSE_OPT_CMDMODE variables
after parsing each option and by storing all relevant details if their
value changed. Do that whether or not the changing options has the flag
PARSE_OPT_CMDMODE set. Report an incompatibility only if two options
change the variable to different values and at least one of them is a
PARSE_OPT_CMDMODE option. This changes the output of the first three
examples above to:
$ t/helper/test-tool parse-options --set23 --mode1
error: --mode1 is incompatible with --set23
$ t/helper/test-tool parse-options --mode1 --set23
error: --set23 is incompatible with --mode1
$ git am --resolved --quit
error: --quit is incompatible with --resolved
Store the argument of PARSE_OPT_CMDMODE options of type OPTION_CALLBACK
as well to allow taking over the responsibility for compatibility
checking from the callback function. The next patch will use this
capability to fix the messages for git am --show-current-patch.
Use a linked list for storing the PARSE_OPT_CMDMODE variables. This
somewhat outdated data structure is simple and suffices, as the number
of elements per command is currently only zero or one. We do support
multiple different command modes variables per command, but I don't
expect that we'd ever use a significant number of them. Once we do we
can switch to a hashmap.
Since we no longer need to search the conflicting option, the all_opts
parameter of get_value() is no longer used. Remove it.
Extend the tests to check for both conflicting option names, but don't
insist on a particular order.
Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Emily Shaffer [Thu, 26 Oct 2023 18:22:31 +0000 (11:22 -0700)]
bugreport: reject positional arguments
git-bugreport already rejected unrecognized flag arguments, like
`--diaggnose`, but this doesn't help if the user's mistake was to forget
the `--` in front of the argument. This can result in a user's intended
argument not being parsed with no indication to the user that something
went wrong. Since git-bugreport presently doesn't take any positionals
at all, let's reject all positionals and give the user a usage hint.
Signed-off-by: Emily Shaffer <nasamuffin@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Emily Shaffer [Thu, 26 Oct 2023 18:22:30 +0000 (11:22 -0700)]
t0091-bugreport: stop using i18ngrep
Since e6545201ad (Merge branch 'ab/detox-config-gettext', 2021-04-13),
test_i18ngrep is no longer required. Quit using it in the bugreport
tests, since it's setting a bad example for tests added later.
Signed-off-by: Emily Shaffer <nasamuffin@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jacob Stopak [Tue, 17 Oct 2023 04:15:03 +0000 (21:15 -0700)]
Include gettext.h in MyFirstContribution tutorial
The tutorial in Documentation/MyFirstContribution.txt has steps to print
some text using the "_" function. However, this leads to compiler errors
when running "make" since "gettext.h" is not #included.
Update docs with a note to #include "gettext.h" in "builtin/psuh.c".
Signed-off-by: Jacob Stopak <jacob@initialcommit.io> Reviewed-by: Emily Shaffer <nasamuffin@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move validation logic below processing of email address lists so that
email validation gets the proper email addresses. As a side effect,
some initialization needed to be moved down. In order for validation
and the actual email sending to have the same initial state, the
initialized variables that get modified by pre_process_file are
encapsulated in a new function.
This fixes email address validation errors when the optional
perl module Email::Valid is installed and multiple addresses are passed
in on a single to/cc argument like --to=foo@example.com,bar@example.com.
A new test was added to t9001 to expose failures with this case in the
future.
Reported-by: Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by: Michael Strawbridge <michael.strawbridge@amd.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Documentation/SubmittingPatches informs the contributor that gitk's
context menu command "Copy commit summary" can be used to obtain the
conventional format of referencing existing commits. This command in
gitk was renamed to "Copy commit reference" in commit [1], following
implementation of Git's "reference" pretty format in [2].
Update mention of this gitk command in Documentation/SubmittingPatches
to its new name.
[1] b8b60957ce (gitk: rename "commit summary" to "commit reference",
2019-12-12)
[2] commit 1f0fc1d (pretty: implement 'reference' format, 2019-11-20)
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Mon, 23 Oct 2023 20:56:37 +0000 (13:56 -0700)]
Merge branch 'bc/racy-4gb-files'
The index file has room only for lower 32-bit of the file size in
the cached stat information, which means cached stat information
will have 0 in its sd_size member for a file whose size is multiple
of 4GiB. This is mistaken for a racily clean path. Avoid it by
storing a bogus sd_size value instead for such files.
* bc/racy-4gb-files:
Prevent git from rehashing 4GiB files
t: add a test helper to truncate files
Javier Mora [Mon, 23 Oct 2023 19:23:10 +0000 (19:23 +0000)]
doc/git-bisect: clarify `git bisect run` syntax
The description of the `git bisect run` command syntax at the beginning
of the manpage is `git bisect run <cmd>...`, which isn't quite clear
about what `<cmd>` is or what the `...` mean; one could think that it is
the whole (quoted) command line with all arguments in a single string,
or that it supports multiple commands, or that it doesn't accept
commands with arguments at all.
Change to `git bisect run <cmd> [<arg>...]` to clarify the syntax,
in both the manpage and the `git bisect -h` command output.
Additionally, change `--term-{new,bad}` et al to `--term-(new|bad)`
for consistency with the synopsis syntax conventions.
Signed-off-by: Javier Mora <cousteaulecommandant@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin/branch.c: adjust error messages to coding guidelines
As per the CodingGuidelines document, it is recommended that error messages
such as die(), error() and warning(), should start with a lowercase letter
and should not end with a period.
This patch adjusts tests to match updated messages.
Signed-off-by: Isoken June Ibizugbe <isokenjune@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This moves it right next to parse_opt_empty(), which is a much more
logical place. As a side effect, this removes the need for a forward
declaration of imply_merge().
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
rebase: handle --strategy via imply_merge() as well
At least after the successive trimming of enum rebase_type mentioned in
the previous commit, this code did exactly what imply_merge() does, so
just call it instead.
Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The code's evolution left in some bits surrounding enum rebase_type that
don't really make sense any more. In particular, it makes no sense to
invoke imply_merge() if the type is already known not to be
REBASE_APPLY, and it makes no sense to assign the type after calling
imply_merge().
enum rebase_type had more values until commit a74b35081c ("rebase: drop
support for `--preserve-merges`") and commit 10cdb9f38a ("rebase: rename
the two primary rebase backends"). The latter commit also renamed
imply_interactive() to imply_merge().
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Fri, 20 Oct 2023 10:15:24 +0000 (06:15 -0400)]
send-email: handle to/cc/bcc from --compose message
If the user writes a message via --compose, send-email will pick up
various headers like "From", "Subject", etc and use them for other
patches as if they were specified on the command-line. But we don't
handle "To", "Cc", or "Bcc" this way; we just tell the user "those
aren't interpeted yet" and ignore them.
But it seems like an obvious thing to want, especially as the same
feature exists when the cover letter is generated separately by
format-patch. There it is gated behind the --to-cover option, but I
don't think we'd need the same control here; since we generate the
--compose template ourselves based on the existing input, if the user
leaves the lines unchanged then the behavior remains the same.
So let's fill in the implementation; like those other headers we already
handle, we just need to assign to the initial_* variables. The only
difference in this case is that they are arrays, so we'll feed them
through parse_address_line() to split them (just like we would when
reading a single string via prompting).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Prior to that commit, we read the results of the user editing the
"--compose" message in a loop, picking out parts we cared about, and
streaming the result out to a ".final" file. That commit split the
reading/interpreting into two phases; we'd now read into a hash, and
then pick things out of the hash.
The goal was making the code more readable. And in some ways it did,
because the ugly regexes are confined to the reading phase. But it also
introduced several bugs, because now the two phases need to match each
other. In particular:
- we pick out headers like "Subject: foo" with a case-insensitive
regex, and then use the user-provided header name as the key in a
case-sensitive hash. So if the user wrote "subject: foo", we'd no
longer recognize it as a subject.
- the namespace for the hash keys conflates header names with meta
information like "body". If you put "body: foo" in your message, it
would be misinterpreted as the actual message body (nobody is likely
to do that in practice, but it seems like an unnecessary danger).
- the handling for to/cc/bcc is totally broken. The behavior before
that commit is to recognize and skip those headers, with a note to
the user that they are not yet handled. Not great, but OK. But
after the patch, the reading side now splits the addresses into a
perl array-ref. But the interpreting side doesn't handle this at
all, and blindly prints the stringified array-ref value. This leads
to garbage like:
(mbox) Adding to: ARRAY (0x555b4345c428) from line 'To: ARRAY(0x555b4345c428)'
error: unable to extract a valid address from: ARRAY (0x555b4345c428)
What to do with this address? ([q]uit|[d]rop|[e]dit):
Probably not a huge deal, since nobody should even try to use those
headers in the first place (since they were not implemented). But
the new behavior is worse, and indicative of the sorts of problems
that come from having the two layers.
The revert had a few conflicts, due to later work in this area from 15dc3b9161 (send-email: rename variable for clarity, 2018-03-04) and d11c943c78 (send-email: support separate Reply-To address, 2018-03-04).
I've ported the changes from those commits over as part of the conflict
resolution.
The new tests show the bugs. Note the use of GIT_SEND_EMAIL_NOTTY in the
second one. Without it, the test is happy to reach outside the test
harness to the developer's actual terminal (when run with the buggy
state before this patch).
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Fri, 20 Oct 2023 10:09:01 +0000 (06:09 -0400)]
doc/send-email: mention handling of "reply-to" with --compose
The documentation for git-send-email lists the headers handled specially
by --compose in a way that implies that this is the complete set of
headers that are special. But one more was added by d11c943c78
(send-email: support separate Reply-To address, 2018-03-04) and never
documented.
Let's add it, and reword the documentation slightly to avoid having to
specify the list of headers twice (as it is growing and will continue to
do so as we add new features).
If you read the code, you may notice that we also handle MIME-Version
specially, in that we'll avoid over-writing user-provided MIME headers.
I don't think this is worth mentioning, as it's what you'd expect to
happen (as opposed to the other headers, which are picked up to be used
in later emails). And certainly this feature existed when the
documentation was expanded in 01d3861217 (git-send-email.txt: describe
--compose better, 2009-03-16), and we chose not to mention it then.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Die gracefully when `git grep --no-index` is run outside of a Git
repository and the path is outside the directory tree.
If you are not in a Git repository and say:
git grep --no-index search ..
You trigger a `BUG`:
BUG: environment.c:213: git environment hasn't been setup
Aborted (core dumped)
Because `..` is a valid path which is treated as a pathspec. Then
`pathspec` figures out that it is not in the current directory tree. The
`BUG` is triggered when `pathspec` tries to advise the user about how the
path is not in the current (non-existing) repository.
Reported-by: ks1322 ks1322 <ks1322@gmail.com> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Matthew McClain [Thu, 19 Oct 2023 00:25:58 +0000 (19:25 -0500)]
git-p4 shouldn't attempt to store symlinks in LFS
git-p4.py would attempt to put a symlink in LFS if its file extension
matched git-p4.largeFileExtensions.
Git LFS doesn't store symlinks because smudge/clean filters don't handle
symlinks. They never get passed to the filter process nor the
smudge/clean filters, nor could that occur without a change to the
protocol or command-line interface. Unless Git learned how to send them
to the filters, Git LFS would have a hard time using them in any useful
way.
Git LFS's goal is to move large files out of the repository history, and
symlinks are functionally limited to 4 KiB or a similar size on most
systems.
Signed-off-by: Matthew McClain <mmcclain@noprivs.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
t7601: use "test_path_is_file" etc. instead of "test -f"
Some tests in t7601 use "test -f" and "test ! -f" to see if a path
exists or is missing.
Use test_path_is_file and test_path_is_missing helper functions to
clarify these tests a bit better. This especially matters for the
"missing" case because "test ! -f F" will be happy if "F" exists as a
directory, but the intent of the test is that "F" should not exist, even
as a directory. The updated code expresses this better.
Signed-off-by: Dorcas AnonoLitunya <anonolitunya@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Wed, 18 Oct 2023 23:35:06 +0000 (16:35 -0700)]
am: align placeholder for --whitespace option with apply
`git am` passes the value given to its `--whitespace` option through
to the underlying `git apply`, and the value is called <action> over
there. Fix the documentation for the command that calls the value
<option> to say <action> instead.
Note that the option help given by `git am -h` already calls the
value <action>, so there is no need to make a matching change there.
Junio C Hamano [Wed, 18 Oct 2023 20:25:41 +0000 (13:25 -0700)]
Merge branch 'tb/repack-max-cruft-size'
"git repack" learned "--max-cruft-size" to prevent cruft packs from
growing without bounds.
* tb/repack-max-cruft-size:
repack: free existing_cruft array after use
builtin/repack.c: avoid making cruft packs preferred
builtin/repack.c: implement support for `--max-cruft-size`
builtin/repack.c: parse `--max-pack-size` with OPT_MAGNITUDE
t7700: split cruft-related tests to t7704
Junio C Hamano [Wed, 18 Oct 2023 03:08:51 +0000 (20:08 -0700)]
commit: do not use cryptic "new_index" in end-user facing messages
These error messages say "new_index" as if that spelling has some
significance to the end users (e.g. the file "$GIT_DIR/new_index"
has some issues), but that is not the case at all. The i18n folks
were made to include the word literally in the translated messages,
which was not a good idea at all. Spell it "new index", as we are
just telling the users that we failed to create a new index file.
The term is expected to be translated to the end-users' languages,
not left as if it were a literal file name.
This dates all the way back to the first re-implemenation of "git
commit" command in C (the scripted version did not have such wording
in its error messages), in f5bbc322 (Port git commit to C.,
2007-11-08).
Naomi Ibe [Tue, 17 Oct 2023 11:39:45 +0000 (12:39 +0100)]
builtin/add.c: clean up die() messages
As described in the CodingGuidelines document, a single line message
given to die() and its friends should not capitalize its first word,
and should not add full-stop at the end.
Signed-off-by: Naomi Ibe <naomi.ibeh69@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
In 83c750acde (wt-status.*: better advice for git status added,
2012-06-05), git-status received new informative messages to describe
the ongoing work in a worktree.
These messages were enhanced in 0722c805d6 (status: show the branch name
if possible in in-progress info, 2013-02-03), to show, if possible, the
branch where the operation was initiated.
Since then, we show incorrect information when several operations are in
progress and one of them is bisect:
$ git checkout -b foo
$ GIT_SEQUENCE_EDITOR='echo break >' git rebase -i HEAD~
$ git checkout -b bar
$ git bisect start
$ git status
...
You are currently editing a commit while rebasing branch 'bar' on '...'.
You are currently bisecting, started from branch 'bar'.
...
Note that we erroneously say "while rebasing branch 'bar'" when we
should be referring to "foo".
This must have gone unnoticed for so long because it must be unusual to
start a bisection while another operation is in progress. And even less
usual to involve different branches.
It caught my attention reviewing a leak introduced in 8b87cfd000
(wt-status: move strbuf into read_and_strip_branch(), 2013-03-16).
A simple change to deal with this situation can be to record in struct
wt_status_state, the branch where the bisect starts separately from the
branch related to other operations.
Let's do it and so we'll be able to display correct information and
we'll avoid the leak as well.
Signed-off-by: Rubén Justo <rjusto@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
The documentation for geometric repacking mentions a "--unpacked" option
that supposedly changes how loose objects are rolled up. This option has
never existed, and the implied behaviour, namely to include all unpacked
objects into the resulting packfile, is in fact the default behaviour.
Correct the documentation to not mention this option.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
doc/git-repack: fix syntax for `-g` shorthand option
The `-g` switch is a shorthand for `--geometric=` and allows the user to
specify the geometric. The documentation is wrong though and indicates
that the syntax for the shorthand is `-g=<factor>`. In fact though, the
option must be specified without the equals sign via `-g<factor>`.
Fix the syntax accordingly.
Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Jeff King [Sat, 14 Oct 2023 00:43:48 +0000 (20:43 -0400)]
t5319: make corrupted large-offset test more robust
The test t5319.88 ("reader bounds-checks large offset table") can fail
intermittently. The failure mode looks like this:
1. An earlier test sets up "objects64", a directory that can be used
to produce a midx with a corrupted large-offsets table. To get the
large offsets, it corrupts the normal ".idx" file to have a fake
large offset, and then builds a midx from that.
That midx now has a large offset table, which is what we want. But
we also have a .idx on disk that has a corrupted entry. We'll call
the object with the corrupted large-offset "X".
2. In t5319.88, we further corrupt the midx by reducing the size of
the large-offset chunk (because our goal is to make sure we do not
do an out-of-bounds read on it).
3. We then enumerate all of the objects with "cat-file --batch-check
--batch-all-objects", expecting to see a complaint when we try to
show object X. We use --batch-all-objects because our objects64
repo doesn't actually have any refs (but if we check them all, one
of them will be the failing one). The default batch-check format
includes %(objecttype) and %(objectsize), both of which require us
to access the actual pack data (and thus requires looking at the
offset).
4a. Usually, this succeeds. We try to output object X, do a lookup via
the midx for the type/size lookup, and run into the corrupt
large-offset table.
4b. But sometimes we hit a different error. If another object points
to X as a delta base, then trying to find the type of that object
requires walking the delta chain to the base entry (since only the
base has the concrete type; deltas themselves are either OFS_DELTA
or REF_DELTA).
Normally this would not require separate offset lookups at all, as
deltas are usually stored as OFS_DELTA, specifying the relative
offset to the base. But the corrupt idx created in step 1 is done
directly with "git pack-objects" and does not pass the
--delta-base-offset option, meaning we have REF_DELTA entries!
Those do have to consult an index to find the location of the base
object, and they use the pack .idx to do this. The same pack .idx
that we know is corrupted from step 1!
Git does notice the error, but it does so by seeing the corrupt
.idx file, not the corrupt midx file, and the error it reports is
different, causing the test to fail.
The set of objects created in the test is deterministic. But the delta
selection seems not to be (which is not too surprising, as it is
multi-threaded). I have seen the failure in Windows CI but haven't
reproduced it locally (not even with --stress). Re-running a failed
Windows CI job tends to work. But when I download and examine the trash
directory from a failed run, it shows a different set of deltas than I
get locally. But the exact source of non-determinism isn't that
important; our test should be robust against any order.
There are a few options to fix this:
a. It would be OK for the "objects64" setup to "unbreak" the .idx file
after generating the midx. But then it would be hard for subsequent
tests to reuse it, since it is the corrupted idx that forces the
midx to have a large offset table.
b. The "objects64" setup could use --delta-base-offset. This would fix
our problem, but earlier tests have many hard-coded offsets. Using
OFS_DELTA would change the locations of objects in the pack (this
might even be OK because I think most of the offsets are within the
.idx file, but it seems brittle and I'm afraid to touch it).
c. Our cat-file output is in oid order by default. Since we store
bases before deltas, if we went in pack order (using the
"--unordered" flag), we'd always see our corrupt X before any delta
which depends on it. But using "--unordered" means we skip the midx
entirely. That makes sense, since it is just enumerating all of
the packs, using the offsets found in their .idx files directly.
So it doesn't work for our test.
d. We could ask directly about object X, rather than enumerating all
of them. But that requires further hard-coding of the oid (both
sha1 and sha256) of object X. I'd prefer not to introduce more
brittleness.
e. We can use a --batch-check format that looks at the pack data, but
doesn't have to chase deltas. The problem in this case is
%(objecttype), which has to walk to the base. But %(objectsize)
does not; we can get the value directly from the delta itself.
Another option would be %(deltabase), where we report the REF_DELTA
name but don't look at its data.
I've gone with option (e) here. It's kind of subtle, but it's simple and
has no side effects.
Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Fri, 13 Oct 2023 21:18:28 +0000 (14:18 -0700)]
Merge branch 'ar/diff-index-merge-base-fix'
"git diff --merge-base X other args..." insisted that X must be a
commit and errored out when given an annotated tag that peels to a
commit, but we only need it to be a committish. This has been
corrected.
* ar/diff-index-merge-base-fix:
diff: fix --merge-base with annotated tags
In .gitmodules files, submodules are keyed by their names, and the
path to the submodule whose name is $name is specified by the
submodule.$name.path variable. There were a few codepaths that
mixed the name and path up when consulting the submodule database,
which have been corrected. It took long for these bugs to be found
as the name of a submodule initially is the same as its path, and
the problem does not surface until it is moved to a different path,
which apparently happens very rarely.
* js/submodule-fix-misuse-of-path-and-name:
t7420: test that we correctly handle renamed submodules
t7419: test that we correctly handle renamed submodules
t7419, t7420: use test_cmp_config instead of grepping .gitmodules
t7419: actually test the branch switching
submodule--helper: return error from set-url when modifying failed
submodule--helper: use submodule_from_path in set-{url,branch}
Junio C Hamano [Fri, 13 Oct 2023 21:18:28 +0000 (14:18 -0700)]
Merge branch 'jk/commit-graph-leak-fixes'
Leakfix.
* jk/commit-graph-leak-fixes:
commit-graph: clear oidset after finishing write
commit-graph: free write-context base_graph_name during cleanup
commit-graph: free write-context entries before overwriting
commit-graph: free graph struct that was not added to chain
commit-graph: delay base_graph assignment in add_graph_to_chain()
commit-graph: free all elements of graph chain
commit-graph: move slab-clearing to close_commit_graph()
merge: free result of repo_get_merge_bases()
commit-reach: free temporary list in get_octopus_merge_bases()
t6700: mark test as leak-free
Junio C Hamano [Fri, 13 Oct 2023 21:18:27 +0000 (14:18 -0700)]
Merge branch 'la/trailer-test-and-doc-updates'
Test coverage for trailers has been improved.
* la/trailer-test-and-doc-updates:
trailer doc: <token> is a <key> or <keyAlias>, not both
trailer doc: separator within key suppresses default separator
trailer doc: emphasize the effect of configuration variables
trailer --unfold help: prefer "reformat" over "join"
trailer --parse docs: add explanation for its usefulness
trailer --only-input: prefer "configuration variables" over "rules"
trailer --parse help: expose aliased options
trailer --no-divider help: describe usual "---" meaning
trailer: trailer location is a place, not an action
trailer doc: narrow down scope of --where and related flags
trailer: add tests to check defaulting behavior with --no-* flags
trailer test description: this tests --where=after, not --where=before
trailer tests: make test cases self-contained
Jason Hatton [Thu, 12 Oct 2023 16:09:30 +0000 (16:09 +0000)]
Prevent git from rehashing 4GiB files
The index stores file sizes using a uint32_t. This causes any file
that is a multiple of 2^32 to have a cached file size of zero.
Zero is a special value used by racily clean. This causes git to
rehash every file that is a multiple of 2^32 every time git status
or git commit is run.
This patch mitigates the problem by making all files that are a
multiple of 2^32 appear to have a size of 1<<31 instead of zero.
The value of 1<<31 is chosen to keep it as far away from zero
as possible to help prevent things getting mixed up with unpatched
versions of git.
An example would be to have a 2^32 sized file in the index of
patched git. Patched git would save the file as 2^31 in the cache.
An unpatched git would very much see the file has changed in size
and force it to rehash the file, which is safe. The file would
have to grow or shrink by exactly 2^31 and retain all of its
ctime, mtime, and other attributes for old git to not notice
the change.
This patch does not change the behavior of any file that is not
an exact multiple of 2^32.
Signed-off-by: Jason D. Hatton <jhatton@globalfinishing.com> Signed-off-by: brian m. carlson <bk2204@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
brian m. carlson [Thu, 12 Oct 2023 16:09:29 +0000 (16:09 +0000)]
t: add a test helper to truncate files
In a future commit, we're going to work with some large files which will
be at least 4 GiB in size. To take advantage of the sparseness
functionality on most Unix systems and avoid running the system out of
disk, it would be convenient to use truncate(2) to simply create a
sparse file of sufficient size.
However, the GNU truncate(1) utility isn't portable, so let's write a
tiny test helper that does the work for us.
Signed-off-by: brian m. carlson <bk2204@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
John Cai [Fri, 13 Oct 2023 17:39:30 +0000 (17:39 +0000)]
attr: add attr.tree for setting the treeish to read attributes from
44451a2 (attr: teach "--attr-source=<tree>" global option to "git",
2023-05-06) provided the ability to pass in a treeish as the attr
source. In the context of serving Git repositories as bare repos like we
do at GitLab however, it would be easier to point --attr-source to HEAD
for all commands by setting it once.
Add a new config attr.tree that allows this.
Signed-off-by: John Cai <johncai86@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
John Cai [Fri, 13 Oct 2023 17:39:29 +0000 (17:39 +0000)]
attr: read attributes from HEAD when bare repo
The motivation for 44451a2e5e (attr: teach "--attr-source=<tree>" global
option to "git" , 2023-05-06), was to make it possible to use
gitattributes with bare repositories.
To make it easier to read gitattributes in bare repositories however,
let's just make HEAD:.gitattributes the default. This is in line with
how mailmap works, 8c473cecfd (mailmap: default mailmap.blob in bare
repositories, 2012-12-13).
Signed-off-by: John Cai <johncai86@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Junio C Hamano [Thu, 12 Oct 2023 19:18:27 +0000 (12:18 -0700)]
Merge branch 'js/ci-coverity'
GitHub CI workflow has learned to trigger Coverity check.
* js/ci-coverity:
coverity: detect and report when the token or project is incorrect
coverity: allow running on macOS
coverity: support building on Windows
coverity: allow overriding the Coverity project
coverity: cache the Coverity Build Tool
ci: add a GitHub workflow to submit Coverity scans
Junio C Hamano [Thu, 12 Oct 2023 17:28:16 +0000 (10:28 -0700)]
grep: -f <path> is relative to $cwd
Just like OPT_FILENAME() does, "git grep -f <path>" should treat
the <path> relative to the original $cwd by paying attention to the
prefix the command is given.
projects / thirdparty / git.git / log
