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Because gitignore patterns are passed to fnmatch, the handling of
backslashes is the same as it is there: it can be used to escape
metacharacters. We do reference fnmatch(3) for more details, but it may
be friendlier to point out this implication explicitly (especially for
people who want to know about backslash handling and search the
documentation for that word). There are also two cases that I've seen
some other backslash-escaping systems handle differently, so let's
describe those:
1. A backslash before any character treats that character literally,
even if it's not otherwise a meta-character. As opposed to
including the backslash itself (like "foo\bar" in shell expands to
"foo\bar") or forbidding it ("foo\zar" is required to produce a
diagnostic in C).
2. A backslash at the end of the string is an invalid pattern (and not
a literal backslash).
This second one in particular was a point of confusion between our
implementation and the one in JGit. Our wildmatch behavior matches what
POSIX specifies for fnmatch, so the code and documentation are in line.
But let's add a test to cover this case. Note that the behavior here
differs between wildmatch itself (which is what gitignore will use) and
pathspec matching (which will only turn to wildmatch if a literal match
fails). So we match "foo\" to "foo\" in pathspecs, but not via
gitignore.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The strategy in t1016-compatObjectFormat is to build two trees with
identical commits, one tree encoded in sha1 the other tree encoded
in sha256 and to use the compatibility code to test and see if
the two trees are identical.
GPG signatures include the current time as part of the signature.
To make gpg deterministic I forced the use of gpg --faked-system-time.
Unfortunately I did not look closely enough.
By default gpg still allows time to move forward with --faked-system-time.
So in those rare instances when the system is heavily loaded and gpg runs
slower than other times, signatures over the exact same data differ
due to timestamps with a minuscule difference.
Reading through the gpg documentation with a close eye, time can be
frozen by including an exclamation point at the end of the argument to
--faked-system-time.
Add the exclamation point so gpg really runs with a fixed notion of time,
resulting in the exact same data having identical gpg signatures.
That is enough that I can run "t1016-compatObjectFormat.sh --stress"
and I don't see any failures.
It is possible a future change to gpg will make replay protection more
robust and not provide a way to allow two separate runs of gpg to
produce exactly the same signature for exactly the same data. If that
happens a deeper comparison of the two repositories will need to be
performed. A comparison that simply verifies the signatures and
compares the data for equality. For now that is a lot of work
for no gain so I am just documenting the possibility.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update the usage string of `git bisect` and documentation to match each
other. While at it, also:
1. Move the synopsis of `git bisect` subcommands to the synopsis
section, so that the test `t0450-txt-doc-vs-help.sh` can pass.
2. Document the `git bisect next` subcommand, which exists in the code
but is missing from the documentation.
See also: [1].
[1]: https://lore.kernel.org/git/3DA38465-7636-4EEF-B074-53E4628F5355@gmail.com/
Suggested-by: Ben Knoble <ben.knoble@gmail.com>
Signed-off-by: Ruoyu Zhong <zhongruoyu@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The placeholder markup is underscore (_), not backtick (`) as well.
The inline-verbatim markup (backticks) handle interior formatting. This
means in this case that it applies HTML `<code>` to the underscores and
`<em>` to the placeholder.
That is the effect, anyway; we can see from the rest of 042d6f34 (doc:
git-checkout: clarify `-b` and `-B`, 2025-09-10) that this was probably
an unintended mix-up.
Acked-by: Julia Evans <julia@jvns.ca>
Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
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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CI improvements to handle the recent Rust integration better.
* ps/ci-rust:
rust: support for Windows
ci: verify minimum supported Rust version
ci: check for common Rust mistakes via Clippy
rust/varint: add safety comments
ci: check formatting of our Rust code
ci: deduplicate calls to `apt-get update`
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"git fast-import" is taught to handle signed tags, just like it
recently learned to handle signed commits, in different ways.
* cc/fast-import-strip-signed-tags:
fast-import: add '--signed-tags=<mode>' option
fast-export: handle all kinds of tag signatures
t9350: properly count annotated tags
lib-gpg: allow tests with GPGSM or GPGSSH prereq first
doc: git-tag: stop focusing on GPG signed tags
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"git sparse-checkout" subcommand learned a new "clean" action to
prune otherwise unused working-tree files that are outside the
areas of interest.
* ds/sparse-checkout-clean:
sparse-index: improve advice message instructions
t: expand tests around sparse merges and clean
sparse-index: point users to new 'clean' action
sparse-checkout: add --verbose option to 'clean'
dir: add generic "walk all files" helper
sparse-checkout: match some 'clean' behavior
sparse-checkout: add basics of 'clean' command
sparse-checkout: remove use of the_repository
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When a supposedly no-op "git repack" runs across a second boundary,
because the command always touches the MIDX file and updates its
timestamp, "ls -l $GIT_DIR/objects/pack/" before and after the
operation can change, which causes such a test to fail. Only
compare the *.pack files in the directory before and after the
operation to work around this flakyness.
Arguably, git-repack(1) should learn to not rewrite the MIDX in case
we know it is already up-to-date. But this is not a new problem
introduced via the new geometric maintenance task, so for now it
should be good enough to paper over the issue.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
[jc: taken from diff to v4 from v3 that was already merged to 'next']
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a note after the `git send-email` section explaining how
contributors can confirm that their patches reached the mailing
list by checking https://lore.kernel.org/git/. This helps
contributors verify that their emails were successfully delivered.
Signed-off-by: Queen Ediri Jessa <qjessa662@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The debug ref backend (refs_be_debug) was missing the remove_on_disk
function pointer, which caused a segmentation fault when running
'GIT_TRACE_REFS=1 git refs migrate --ref-format=reftable' commands.
Signed-off-by: Xinyu Ruan <r200981113@gmail.com>
Acked-by: Patrick Steinhardt <ps@pks.im>
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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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test modernization.
* so/t2401-use-test-path-helpers:
t2401: update path checks using test_path helpers
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CI update.
* js/ci-github-actions-update:
build(deps): bump actions/github-script from 7 to 8
build(deps): bump actions/setup-python from 5 to 6
build(deps): bump actions/checkout from 4 to 5
build(deps): bump actions/download-artifact from 4 to 5
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Doc mark-up fixes.
* kh/doc-continued-paragraph-fix:
doc: fix accidental literal blocks
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Code clean-up.
* js/unreachable-workaround-for-no-symlink-head:
refs: forbid clang to complain about unreachable code
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Recent OpenSSH creates the Unix domain socket to communicate with
ssh-agent under $HOME instead of /tmp, which causes our test to
fail doe to overly long pathname in our test environment, which has
been worked around by using "ssh-agent -T".
* ps/t7528-ssh-agent-uds-workaround:
t7528: work around ETOOMANY in OpenSSH 10.1 and newer
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Unicode width table update.
* tb/unicode-width-table-17:
unicode: update the width tables to Unicode 17
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The "--short" option of "git status" that meant output for humans
and "-z" option to show NUL delimited output format did not mix
well, and colored some but not all things. The command has been
updated to color all elements consistently in such a case.
* jk/status-z-short-fix:
status: make coloring of "-z --short" consistent
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An earlier addition to "git diff --no-index A B" to limit the
output with pathspec after the two directories misbehaved when
these directories were given with a trailing slash, which has been
corrected.
* jk/diff-no-index-with-pathspec-fix:
diff --no-index: fix logic for paths ending in '/'
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Windows "real-time monitoring" interferes with the execution of
tests and affects negatively in both correctness and performance,
which has been disabled in Gitlab CI.
* ps/gitlab-ci-disable-windows-monitoring:
gitlab-ci: disable realtime monitoring to unbreak Windows jobs
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The code to squelch output from "git diff -w --name-status"
etc. for paths that "git diff -w -p" would have stayed silent
leaked output from dry-run patch generation, which has been
corrected.
* jc/diff-from-contents-fix:
diff: make sure the other caller of diff_flush_patch_quietly() is silent
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Recently we attempted to improve "git diff -w" and friends to
handle cases where patch output would be suppressed, but it
introduced a bug that emits unnecessary output, which has been
corrected.
* jk/diff-from-contents-fix:
diff: restore redirection to /dev/null for diff_from_contents
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If we reach the end of the input, e.g. because the user pressed ctrl-D
on Linux, there is no point in showing any more prompts, as we won't get
any reply. Do the same as option 'q' would: Quit.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In match_pathname(), which we use for matching .gitignore and
.gitattribute patterns, we are comparing paths with fnmatch patterns
(actually our extended wildmatch, which will be important). There's an
extra optimization there: we pre-compute the number of non-wildcard
characters at the beginning of the pattern and do an fspathncmp() on
that prefix.
That lets us avoid fnmatch entirely on patterns without wildcards, and
shrinks the amount of work we hand off to fnmatch. For a pattern like
"foo*.txt" and a path "foobar.txt", we'd cut away the matching "foo"
prefix and just pass "*.txt" and "bar.txt" to fnmatch().
But this misses a subtle corner case. In fnmatch(), we'll think
"bar.txt" is the start of the path, but it's not. This doesn't matter
for the pattern above, but consider the wildmatch pattern "foo**/bar"
and the path "foobar". These two should not match, because there is no
file named "bar", and the "**" applies only to the containing directory
name. But after removing the "foo" prefix, fnmatch will get "**/bar" and
"bar", which it does consider a match, because "**/" can match zero
directories.
We can solve this by giving fnmatch a bit more context. As long as it
has one byte of the matched prefix, then it will know that "bar" is not
the start of the path. In this example it would get "o**/bar" and
"obar", and realize that they cannot match.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As an optimization, we use fspathncmp() to match a prefix of the pattern
that does not contain any wildcards, and then pass the remainder to
fnmatch(). If it has matched the whole thing, we can return early.
Let's shift this early-return check to before we tweak the pattern and
name strings. That will gives us more flexibility with that tweaking.
It might also save a few instructions, but I couldn't measure any
improvement in doing so (and I wouldn't be surprised if an optimizing
compiler could figure that out itself).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add an install target rule to the Makefiles in contrib/credential in the
same manner as in other Makefiles in contrib such as for contacts or
subtree.
Signed-off-by: Thomas Uhle <thomas.uhle@mailbox.tu-dresden.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Option q implies d, i.e., it marks any undecided hunks towards the
bottom of the hunk array as skipped. This is unnecessary; later code
treats undecided and skipped hunks the same: The only functions that
use UNDECIDED_HUNK and SKIP_HUNK are patch_update_file() itself (but
not after its big for loop) and its helpers get_first_undecided() and
display_hunks().
Streamline the handling of option q by quitting immediately.
Signed-off-by: René Scharfe <l.s.r@web.de>
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 OpenSSH creates the Unix domain socket to communicate with
ssh-agent under $HOME instead of /tmp, which causes our test to
fail doe to overly long pathname in our test environment, which has
been worked around by using "ssh-agent -T".
* ps/t7528-ssh-agent-uds-workaround:
t7528: work around ETOOMANY in OpenSSH 10.1 and newer
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Show 'P'ipe command in "git add -p".
* rs/add-patch-document-p-for-pager:
add-patch: fully document option P
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GPG signing test set-up has been broken for a year, which has been
corrected.
* jc/t1016-setup-fix:
t1016: make sure to use specified GPG
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Unicode width table update.
* tb/unicode-width-table-17:
unicode: update the width tables to Unicode 17
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Build procedure for a few credential helpers (in contrib/) have
been updated.
* tu/credential-makefile-updates:
contrib/credential: harmonize Makefiles
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The "--short" option of "git status" that meant output for humans
and "-z" option to show NUL delimited output format did not mix
well, and colored some but not all things. The command has been
updated to color all elements consistently in such a case.
* jk/status-z-short-fix:
status: make coloring of "-z --short" consistent
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Test fix.
* js/t7500-pwd-windows-fix:
t7500: fix tests with absolute path following ":(optional)" on Windows
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Documentation mark-up fixes.
* rj/doc-technical-fixes:
doc: add large-object-promisors.adoc to the docs build
doc: commit-graph.adoc: fix up some formatting
doc: sparse-checkout.adoc: fix asciidoc warnings
doc: remembering-renames.adoc: fix asciidoc warnings
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We have two different repacking strategies in Git:
- The "gc" strategy uses git-gc(1).
- The "incremental" strategy uses multi-pack indices and `git
multi-pack-index repack` to merge together smaller packfiles as
determined by a specific batch size.
The former strategy is our old and trusted default, whereas the latter
has historically been used for our scheduled maintenance. But both
strategies have their shortcomings:
- The "gc" strategy performs regular all-into-one repacks. Furthermore
it is rather inflexible, as it is not easily possible for a user to
enable or disable specific subtasks.
- The "incremental" strategy is not a full replacement for the "gc"
strategy as it doesn't know to prune stale data.
So today, we don't have a strategy that is well-suited for large repos
while being a full replacement for the "gc" strategy.
Introduce a new "geometric" strategy that aims to fill this gap. This
strategy invokes all the usual cleanup tasks that git-gc(1) does like
pruning reflogs and rerere caches as well as stale worktrees. But where
it differs from both the "gc" and "incremental" strategy is that it uses
our geometric repacking infrastructure exposed by git-repack(1) to
repack packfiles. The advantage of geometric repacking is that we only
need to perform an all-into-one repack when the object count in a repo
has grown significantly.
One downside of this strategy is that pruning of unreferenced objects is
not going to happen regularly anymore. Every geometric repack knows to
soak up all loose objects regardless of their reachability, and merging
two or more packs doesn't consider reachability, either. Consequently,
the number of unreachable objects will grow over time.
This is remedied by doing an all-into-one repack instead of a geometric
repack whenever we determine that the geometric repack would end up
merging all packfiles anyway. This all-into-one repack then performs our
usual reachability checks and writes unreachable objects into a cruft
pack. As cruft packs won't ever be merged during geometric repacks we
can thus phase out these objects over time.
Of course, this still means that we retain unreachable objects for far
longer than with the "gc" strategy. But the maintenance strategy is
intended especially for large repositories, where the basic assumption
is that the set of unreachable objects will be significantly dwarfed by
the number of reachable objects.
If this assumption is ever proven to be too disadvantageous we could for
example introduce a time-based strategy: if the largest packfile has not
been touched for longer than $T, we perform an all-into-one repack. But
for now, such a mechanism is deferred into the future as it is not clear
yet whether it is needed in the first place.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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While the user can pick the "incremental" maintenance strategy, it is
not possible to explicitly use the "gc" strategy. This has two
downsides:
- It is impossible to use the default "gc" strategy for a specific
repository when the strategy was globally set to a different strategy.
- It is not possible to use git-gc(1) for scheduled maintenance.
Address these issues by making making the "gc" strategy configurable.
Furthermore, extend the strategy so that git-gc(1) runs for both manual
and scheduled maintenance.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "maintenance.strategy" configuration allows users to configure how
Git is supposed to perform repository maintenance. The idea is that we
provide a set of high-level strategies that may be useful in different
contexts, like for example when handling a large monorepo. Furthermore,
the strategy can be tweaked by the user by overriding specific tasks.
In its current form though, the strategy only applies to scheduled
maintenance. This creates something of a gap, as scheduled and manual
maintenance will now use _different_ strategies as the latter would
continue to use git-gc(1) by default. This makes the strategies way less
useful than they could be on the one hand. But even more importantly,
the two different strategies might clash with one another, where one of
the strategies performs maintenance in such a way that it discards
benefits from the other strategy.
So ideally, it should be possible to pick one strategy that then applies
globally to all the different ways that we perform maintenance. This
doesn't necessarily mean that the strategy always does the _same_ thing
for every maintenance type. But it means that the strategy can configure
the different types to work in tandem with each other.
Change the meaning of "maintenance.strategy" accordingly so that the
strategy is applied to both types, manual and scheduled. As preceding
commits have introduced logic to run maintenance tasks depending on this
type we can tweak strategies so that they perform those tasks depending
on the context.
Note that this raises the question of backwards compatibility: when the
user has configured the "incremental" strategy we would have ignored
that strategy beforehand. Instead, repository maintenance would have
continued to use git-gc(1) by default.
But luckily, we can match that behaviour by:
- Keeping all current tasks of the incremental strategy as
`MAINTENANCE_TYPE_SCHEDULED`. This ensures that those tasks will not
run during manual maintenance.
- Configuring the "gc" task so that it is invoked during manual
maintenance.
Like this, the user shouldn't observe any difference in behaviour.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We basically have three different ways to execute repository
maintenance:
1. Manual maintenance via `git maintenance run`.
2. Automatic maintenance via `git maintenance run --auto`.
3. Scheduled maintenance via `git maintenance run --schedule=`.
At the moment, maintenance strategies only have an effect for the last
type of maintenance. This is about to change in subsequent commits, but
to do so we need to be able to skip some tasks depending on how exactly
maintenance was invoked.
Introduce a new maintenance type that discern between manual (1 & 2) and
scheduled (3) maintenance. Convert the `enabled` field into a bitset so
that it becomes possible to specifiy which tasks exactly should run in a
specific context.
The types picked for existing strategies match the status quo:
- The default strategy is only ever executed as part of a manual
maintenance run. It is not possible to use it for scheduled
maintenance.
- The incremental strategy is only ever executed as part of a
scheduled maintenance run. It is not possible to use it for manual
maintenance.
The strategies will be tweaked in subsequent commits to make use of this
new infrastructure.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our maintenance strategies are essentially a large array of structures,
where each of the tasks can be enabled and scheduled individually. With
the current layout though all the configuration sits on the same nesting
layer, which makes it a bit hard to discern which initialized fields
belong to what task.
Improve readability of the individual tasks by using nested designated
initializers instead.
Suggested-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When parsing maintenance strategies we completely ignore the
user-configured value in case it is unknown to us. This makes it
basically undiscoverable to the user that scheduled maintenance is
devolving into a no-op.
Change this to instead die when seeing an unknown maintenance strategy.
While at it, pull out the parsing logic into a separate function so that
we can reuse it in a subsequent commit.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The geometric repacking task uses a factor of two for its geometric
sequence, meaning that each next pack must contain at least twice as
many objects as the next-smaller one. In some cases it may be helpful to
configure this factor though to reduce the number of packfile merges
even further, e.g. in very big repositories. But while git-repack(1)
itself supports doing this, the maintenance task does not give us a way
to tune it.
Introduce a new "maintenance.geometric-repack.splitFactor" configuration
to plug this gap.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce a new "geometric-repack" task. This task uses our geometric
repack infrastructure as provided by git-repack(1) itself, which is a
strategy that especially hosting providers tend to use to amortize the
costs of repacking objects.
There is one issue though with geometric repacks, namely that they
unconditionally pack all loose objects, regardless of whether or not
they are reachable. This is done because it means that we can completely
skip the reachability step, which significantly speeds up the operation.
But it has the big downside that we are unable to expire objects over
time.
To address this issue we thus use a split strategy in this new task:
whenever a geometric repack would merge together all packs, we instead
do an all-into-one repack. By default, these all-into-one repacks have
cruft packs enabled, so unreachable objects would now be written into
their own pack. Consequently, they won't be soaked up during geometric
repacking anymore and can be expired with the next full repack, assuming
that their expiry date has surpassed.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To decide whether or not a repository needs to be repacked we estimate
the number of loose objects. If the number exceeds a certain threshold
we perform the repack, otherwise we don't.
This is done via `too_many_loose_objects()`, which takes as parameter
the `struct gc_config`. This configuration is only used to determine the
threshold. In a subsequent commit we'll add another caller of this
function that wants to pass a different limit than the one stored in
that structure.
Refactor the function accordingly so that we only take the limit as
parameter instead of the whole structure.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The global `repack` variable is used to store all command line arguments
that we eventually want to pass to git-repack(1). It is being appended
to from multiple different functions, which makes it hard to follow the
logic. Besides being hard to follow, it also makes it unnecessarily hard
to reuse this infrastructure in new code.
Refactor the code so that we store this variable on the stack and pass
a pointer to it around as needed. This is done so that we can reuse
`add_repack_all_options()` in a subsequent commit.
The refactoring itself is straight-forward. One function that deserves
attention though is `need_to_gc()`: this function determines whether or
not we need to execute garbage collection for `git gc --auto`, but also
for `git maintenance run --auto`. But besides figuring out whether we
have to perform GC, the function also sets up the `repack` arguments.
For `git gc --auto` it's trivial to adapt, as we already have the
on-stack variable at our fingertips. But for the maintenance condition
it's less obvious what to do.
As it turns out, we can just use another temporary variable there that
we then immediately discard. If we need to perform GC we execute a child
git-gc(1) process to repack objects for us, and that process will have
to recompute the arguments anyway.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We'd sometimes end up in run_external_diff() to do a dry-run diff (e.g.,
to find content-level changes for --quiet). We recognize this quiet mode
by seeing the lack of DIFF_FORMAT_PATCH in the output format.
But since introducing an explicit dry-run check via 3ed5d8bd73 (diff:
stop output garbled message in dry run mode, 2025-10-20), this logic can
never trigger. We can only get to this function by calling
diff_flush_patch(), and that comes from only two places:
1. A dry-run flush comes from diff_flush_patch_quietly(), which is
always in dry-run mode (so the other half of our "||" is true
anyway).
2. A regular flush comes from diff_flush_patch_all_file_pairs(),
which is only called when output_format has DIFF_FORMAT_PATCH in
it.
So we can simplify our "quiet" condition to just checking dry-run mode
(which used to be a specific flag, but recently became just a NULL
"file" pointer). And since it's so simple, we can just do that inline.
This makes the logic about o->file more obvious, since we handle the
NULL and non-stdout cases next to each other.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As an added protection against dry-run diffs accidentally producing
output, we redirect diff_options.file to /dev/null. But as of the
previous patch, this now does nothing, since dry-run diffs are
implemented by setting "file" to NULL.
So we can drop this extra code with no change in behavior. This is
effectively a revert of 623f7af284 (diff: restore redirection to
/dev/null for diff_from_contents, 2025-10-17) and 3da4413dbc (diff: make
sure the other caller of diff_flush_patch_quietly() is silent,
2025-10-22), but:
1. We get a conflict because we already dropped the color_moved
handling in an earlier patch. But we just resolve the conflicts to
"theirs" (removing all of the code).
2. We retain the test from 623f7af284.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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