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Messages from fast-import/export are now marked for i18n.
* cc/fast-import-export-i18n-cleanup:
gpg-interface: mark a string for translation
fast-import: mark strings for translation
fast-export: mark strings for translation
gpg-interface: use left shift to define GPG_VERIFY_*
gpg-interface: simplify ssh fingerprint parsing
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The help text and manual page of "git bisect" command have been
made consistent with each other.
* rz/t0450-bisect-doc-update:
bisect: update usage and docs to match each other
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"git repo structure", a new command.
* jt/repo-structure:
builtin/repo: add progress meter for structure stats
builtin/repo: add keyvalue and nul format for structure stats
builtin/repo: add object counts in structure output
builtin/repo: introduce structure subcommand
ref-filter: export ref_kind_from_refname()
ref-filter: allow NULL filter pattern
builtin/repo: rename repo_info() to cmd_repo_info()
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"git maintenance" command learns the "geometric" strategy where it
avoids doing maintenance tasks that rebuilds everything from
scratch.
* ps/maintenance-geometric:
t7900: fix a flaky test due to git-repack always regenerating MIDX
builtin/maintenance: introduce "geometric" strategy
builtin/maintenance: make "gc" strategy accessible
builtin/maintenance: extend "maintenance.strategy" to manual maintenance
builtin/maintenance: run maintenance tasks depending on type
builtin/maintenance: improve readability of strategies
builtin/maintenance: don't silently ignore invalid strategy
builtin/maintenance: make the geometric factor configurable
builtin/maintenance: introduce "geometric-repack" task
builtin/gc: make `too_many_loose_objects()` reusable without GC config
builtin/gc: remove global `repack` variable
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"git bisect" command did not react correctly to "git bisect help"
and "git bisect unknown", which has been corrected.
* rz/bisect-help-unknown:
bisect: fix handling of `help` and invalid subcommands
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Two slightly different ways to get at "all the packfiles" in API
has been cleaned up.
* ps/remove-packfile-store-get-packs:
packfile: rename `packfile_store_get_all_packs()`
packfile: introduce macro to iterate through packs
packfile: drop `packfile_store_get_packs()`
builtin/grep: simplify how we preload packs
builtin/gc: convert to use `packfile_store_get_all_packs()`
object-name: convert to use `packfile_store_get_all_packs()`
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A new configuration variable commitGraph.changedPaths allows to
turn "--changed-paths" on by default for "git commit-graph".
* ey/commit-graph-changed-paths-config:
commit-graph: add new config for changed-paths & recommend it in scalar
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Some error or warning messages in "builtin/fast-import.c" are marked
for translation, but many are not.
To be more consistent and provide a better experience to people using a
translated version, let's mark all the remaining error or warning
messages for translation.
While at it, let's make the following small changes:
- replace "GIT" or "git" in a few error messages to just "Git",
- replace "Expected from command, got %s" to "expected 'from'
command, got '%s'", which makes it clearer that "from" is a command
and should not be translated,
- downcase error and warning messages that start with an uppercase,
- fix test cases in "t9300-fast-import.sh" that broke because an
error or warning message was downcased,
- split error and warning messages that are too long,
- adjust the indentation of some arguments of the error functions.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Some error or warning messages in "builtin/fast-export.c" are marked
for translation, but many are not.
To be more consistent and provide a better experience to people using a
translated version, let's mark all the remaining error or warning
messages for translation.
While at it:
- improve how some arguments to some error functions are indented,
- remove "Error:" at the start of an error message,
- downcase error and warning messages that start with an uppercase.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Clean-up "git repack" machinery to prepare for incremental update
of midx files.
* tb/incremental-midx-part-3.1: (49 commits)
builtin/repack.c: clean up unused `#include`s
repack: move `write_cruft_pack()` out of the builtin
repack: move `write_filtered_pack()` out of the builtin
repack: move `pack_kept_objects` to `struct pack_objects_args`
repack: move `finish_pack_objects_cmd()` out of the builtin
builtin/repack.c: pass `write_pack_opts` to `finish_pack_objects_cmd()`
repack: extract `write_pack_opts_is_local()`
repack: move `find_pack_prefix()` out of the builtin
builtin/repack.c: use `write_pack_opts` within `write_cruft_pack()`
builtin/repack.c: introduce `struct write_pack_opts`
repack: 'write_midx_included_packs' API from the builtin
builtin/repack.c: inline packs within `write_midx_included_packs()`
builtin/repack.c: pass `repack_write_midx_opts` to `midx_included_packs`
builtin/repack.c: inline `remove_redundant_bitmaps()`
builtin/repack.c: reorder `remove_redundant_bitmaps()`
repack: keep track of MIDX pack names using existing_packs
builtin/repack.c: use a string_list for 'midx_pack_names'
builtin/repack.c: extract opts struct for 'write_midx_included_packs()'
builtin/repack.c: remove ref snapshotting from builtin
repack: remove pack_geometry API from the builtin
...
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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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"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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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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The beginning of SHA1-SHA256 interoperability work.
* bc/sha1-256-interop-01:
t1010: use BROKEN_OBJECTS prerequisite
t: allow specifying compatibility hash
fsck: consider gpgsig headers expected in tags
rev-parse: allow printing compatibility hash
docs: add documentation for loose objects
docs: improve ambiguous areas of pack format documentation
docs: reflect actual double signature for tags
docs: update offset order for pack index v3
docs: update pack index v3 format
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As documented in git-bisect(1), `git bisect help` should display usage
information. However, since the migration of `git bisect` to a full
builtin command in 73fce29427 (Turn `git bisect` into a full built-in,
2022-11-10), this behavior was broken. Running `git bisect help` would,
instead of showing usage, either fail silently if already in a bisect
session, or otherwise trigger an interactive autostart prompt asking "Do
you want me to do it for you [Y/n]?".
Similarly, since df63421be9 (bisect--helper: handle states directly,
2022-11-10), running invalid subcommands like `git bisect foobar` also
led to the same behavior.
This occurred because `help` and other unrecognized subcommands were
being unconditionally passed to `bisect_state`, which then called
`bisect_autostart`, triggering the interactive prompt.
Fix this by:
1. Adding explicit handling for the `help` subcommand to show usage;
2. Validating that unrecognized commands are actually valid state
commands before calling `bisect_state`;
3. Showing an error with usage for truly invalid commands.
This ensures that `git bisect help` displays the usage as documented,
and invalid commands fail cleanly without entering interactive mode.
Alternate terms are still handled correctly through
`check_and_set_terms`.
Signed-off-by: Ruoyu Zhong <zhongruoyu@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The changed-path Bloom filters feature has proven stable and reliable
over several years of use, delivering significant performance
improvement for file history computation in large monorepos. Currently
a user can opt-in to writing the changed-path Bloom filters using the
"--changed-paths" option to "git commit-graph write". The filters will
be persisted until the user drops the filters using the
"--no-changed-paths" option. For this functionality, refer to 0087a87ba8
(commit-graph: persist existence of changed-paths, 2020-07-01).
Large monorepos using Git's background maintenance to build and update
commit-graph files could use an easy switch to enable this feature
without a foreground computation. In this commit, we're proposing a new
config option "commitGraph.changedPaths":
* If "true", "git commit-graph write" will write Bloom filters,
equivalent to passing "--changed-paths";
* If "false" or "unset", Bloom filters will be written during "git
commit-graph write" only if the filters already exist in the current
commit-graph file. This matches the default behaviour of "git
commit-graph write" without any "--[no-]changed-paths" option. Note
"false" can disable a previous "true" config value but doesn't imply
"--no-changed-paths".
This config will always respect the precedence of command line option
"--[no-]changed-paths".
We also set this new config as optional recommended config in scalar to
turn on this feature for large repos.
Helped-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Emily Yang <emilyyang.git@gmail.com>
Acked-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When using the structure subcommand for git-repo(1), evaluating a
repository may take some time depending on its shape. Add a progress
meter to provide feedback to the user about what is happening. The
progress meter is enabled by default when the command is executed from a
tty. It can also be explicitly enabled/disabled via the --[no-]progress
option.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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All repository structure stats are outputted in a human-friendly table
form. This format is not suitable for machine parsing. Add a --format
option that supports three output modes: `table`, `keyvalue`, and `nul`.
The `table` mode is the default format and prints the same table output
as before.
With the `keyvalue` mode, each line of output contains a key-value pair
of a repository stat. The '=' character is used to delimit between keys
and values. The `nul` mode is similar to `keyvalue`, but key-values are
delimited by a NUL character instead of a newline. Also, instead of a
'=' character to delimit between keys and values, a newline character is
used. This allows stat values to support special characters without
having to cquote them. These two new modes provides output that is more
machine-friendly.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The amount of objects in a repository can provide insight regarding its
shape. To surface this information, use the path-walk API to count the
number of reachable objects in the repository by object type. All
regular references are used to determine the reachable set of objects.
The object counts are appended to the same table containing the
reference information.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The structure of a repository's history can have huge impacts on the
performance and health of the repository itself. Currently, Git lacks a
means to surface repository metrics regarding its structure/shape via a
single command. Acquiring this information requires users to be familiar
with the relevant data points and the various Git commands required to
surface them. To fill this gap, supplemental tools such as git-sizer(1)
have been developed.
To allow users to more readily identify repository structure related
information, introduce the "structure" subcommand in git-repo(1). The
goal of this subcommand is to eventually provide similar functionality
to git-sizer(1), but natively in Git.
The initial version of this command only iterates through all references
in the repository and tracks the count of branches, tags, remote refs,
and other reference types. The corresponding information is displayed in
a human-friendly table formatted in a very similar manner to
git-sizer(1). The width of each table column is adjusted automatically
to satisfy the requirements of the widest row contained.
Subsequent commits will surface additional relevant data points to
output and also provide other more machine-friendly output formats.
Based-on-patch-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Subcommand functions are often prefixed with `cmd_` to denote that they
are an entrypoint. Rename repo_info() to cmd_repo_info() accordingly.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* tb/incremental-midx-part-3.1: (64 commits)
builtin/repack.c: clean up unused `#include`s
repack: move `write_cruft_pack()` out of the builtin
repack: move `write_filtered_pack()` out of the builtin
repack: move `pack_kept_objects` to `struct pack_objects_args`
repack: move `finish_pack_objects_cmd()` out of the builtin
builtin/repack.c: pass `write_pack_opts` to `finish_pack_objects_cmd()`
repack: extract `write_pack_opts_is_local()`
repack: move `find_pack_prefix()` out of the builtin
builtin/repack.c: use `write_pack_opts` within `write_cruft_pack()`
builtin/repack.c: introduce `struct write_pack_opts`
repack: 'write_midx_included_packs' API from the builtin
builtin/repack.c: inline packs within `write_midx_included_packs()`
builtin/repack.c: pass `repack_write_midx_opts` to `midx_included_packs`
builtin/repack.c: inline `remove_redundant_bitmaps()`
builtin/repack.c: reorder `remove_redundant_bitmaps()`
repack: keep track of MIDX pack names using existing_packs
builtin/repack.c: use a string_list for 'midx_pack_names'
builtin/repack.c: extract opts struct for 'write_midx_included_packs()'
builtin/repack.c: remove ref snapshotting from builtin
repack: remove pack_geometry API from the builtin
...
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Code clean-up.
* tb/cat-file-objectmode-update:
builtin/cat-file.c: simplify calling `report_object_status()`
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In a preceding commit we have removed `packfile_store_get_packs()`. With
this function removed it's somewhat useless to still have the "all"
infix in `packfile_store_get_all_packs()`. Rename the latter to drop
that infix.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have a bunch of different sites that want to iterate through all
packs of a given `struct packfile_store`. This pattern is somewhat
verbose and repetitive, which makes it somewhat cumbersome.
Introduce a new macro `repo_for_each_pack()` that removes some of the
boilerplate.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When using multiple threads in git-grep(1) we eagerly preload both the
gitmodules file as well as the packfiles so that the threads won't race
with one another to initialize these data structures.
For packfiles, this is done by calling `packfile_store_get_packs()`,
which first loads our packfiles and then returns a pointer to the first
such packfile. This pointer is ignored though, as all we really care
about is that `packfile_store_prepare()` was called.
Historically, that function was file-local to "packfile.c", but that
changed with 4188332569 (packfile: move `get_multi_pack_index()` into
"midx.c", 2025-09-02). We can thus simplify the code by calling that
function directly.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running maintenance tasks via git-maintenance(1) we have a couple
of auto-conditions that check whether or not a specific task should be
running. One such check is for incremental repacks, which essentially
use `git multi-pack-index repack` to repack a set of smaller packfiles
into one larger packfile.
The auto-condition for this task checks how many packfiles there are
that aren't indexed by any multi-pack index. If there is a sufficient
number then we execute the above command to combine those into a single
pack and add that pack to the MIDX.
As we don't care about MIDX'd packs we use `packfile_store_get_packs()`,
which knows to not load any packs that are indexed by a MIDX. But as
explained in the preceding commit, we want to get rid of that function.
We already handle packfiles that have a MIDX by the very nature of this
function, as we explicitly count non-MIDX'd packs. As such, we can
trivially switch over to use `packfile_store_get_all_packs()` instead.
Do so.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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ps/remove-packfile-store-get-packs
* tb/incremental-midx-part-3.1: (64 commits)
builtin/repack.c: clean up unused `#include`s
repack: move `write_cruft_pack()` out of the builtin
repack: move `write_filtered_pack()` out of the builtin
repack: move `pack_kept_objects` to `struct pack_objects_args`
repack: move `finish_pack_objects_cmd()` out of the builtin
builtin/repack.c: pass `write_pack_opts` to `finish_pack_objects_cmd()`
repack: extract `write_pack_opts_is_local()`
repack: move `find_pack_prefix()` out of the builtin
builtin/repack.c: use `write_pack_opts` within `write_cruft_pack()`
builtin/repack.c: introduce `struct write_pack_opts`
repack: 'write_midx_included_packs' API from the builtin
builtin/repack.c: inline packs within `write_midx_included_packs()`
builtin/repack.c: pass `repack_write_midx_opts` to `midx_included_packs`
builtin/repack.c: inline `remove_redundant_bitmaps()`
builtin/repack.c: reorder `remove_redundant_bitmaps()`
repack: keep track of MIDX pack names using existing_packs
builtin/repack.c: use a string_list for 'midx_pack_names'
builtin/repack.c: extract opts struct for 'write_midx_included_packs()'
builtin/repack.c: remove ref snapshotting from builtin
repack: remove pack_geometry API from the builtin
...
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Over the past several dozen commits, we have moved a large amount of
functionality out of the repack builtin and into other files like
repack.c, repack-cruft.c, repack-filtered.c, repack-midx.c, and
repack-promisor.c.
These files specify the minimal set of `#include`s that they need to
compile successfully, but we did not change the set of `#include`s in
the repack builtin itself.
Now that the code movement is complete, let's clean up that set of
`#include`s and trim down the builtin to include the minimal amount of
external headers necessary to compile.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In an identical fashion as the previous commit, move the function
`write_cruft_pack()` into its own compilation unit, and make the
function visible through the repack.h API.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a similar fashion as in previous commits, move the function
`write_filtered_pack()` out of the builtin and into its own compilation
unit.
This function is now part of the repack.h API, but implemented in its
own "repack-filtered.c" unit as it is a separate component from other
kinds of repacking operations.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "pack_kept_objects" variable is defined as static to the repack
builtin, but is inherently related to the pack-objects arguments that
the builtin uses when generating new packs.
Move that field into the "struct pack_objects_args", and shuffle around
where we append the corresponding command-line option when preparing a
pack-objects process. Specifically:
- `write_cruft_pack()` always wants to pass "--honor-pack-keep", so
explicitly set the `pack_kept_objects` field to "0" when initializing
the `write_pack_opts` struct before calling `write_cruft_pack()`.
- `write_filtered_pack()` no longer needs to handle writing the
command-line option "--honor-pack-keep" when preparing a pack-objects
process, since its call to `prepare_pack_objects()` will have already
taken care of that.
`write_filtered_pack()` also reads the `pack_kept_objects` field to
determine whether to write the existing kept packs with a leading "^"
character, so update that to read through the `po_args` pointer
instead.
- `cmd_repack()` also no longer has to write the "--honor-pack-keep"
flag explicitly, since this is also handled via its call to
`prepare_pack_objects()`.
Since there is a default value for "pack_kept_objects" that relies on
whether or not we are writing a bitmap (and not writing a MIDX), extract
a default initializer for `struct pack_objects_args` that keeps this
conditional default behavior.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a similar spirit as the previous commit(s), now that the function
`finish_pack_objects_cmd()` has no explicit dependencies within the
repack builtin, let's extract it.
This prepares us to extract the remaining two functions within the
repack builtin that explicitly write packfiles, which are
`write_cruft_pack()` and `write_filtered_pack()`, which will be done in
the future commits.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To prepare to move the `finish_pack_objects_cmd()` function out of the
builtin and into the repack.h API, there are a couple of things we need
to do first:
- First, let's take advantage of `write_pack_opts_is_local()` function
introduced in the previous commit instead of passing "local"
explicitly.
- Let's also avoid referring to the static 'packtmp' field within
builtin/repack.c by instead accessing it through the write_pack_opts
argument.
There are three callers which need to adjust themselves in order to
account for this change. The callers which reside in write_cruft_pack()
and write_filtered_pack() both already have an "opts" in scope, so they
can pass it through transparently.
The other call (at the bottom of `cmd_repack()`) needs to initialize its
own write_pack_opts to pass the necessary fields over to the direct call
to `finish_pack_objects_cmd()`.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Similar to the previous commit, the functions `write_cruft_pack()` and
`write_filtered_pack()` both compute a "local" variable via the exact
same mechanism:
const char *scratch;
int local = skip_prefix(opts->destination, opts->packdir, &scratch);
Not only does this cause us to repeat the same pair of lines, it also
introduces an unnecessary "scratch" variable that is common between both
functions.
Instead of repeating ourselves, let's extract that functionality into a
new function in the repack.h API called "write_pack_opts_is_local()".
That function takes a pointer to a "struct write_pack_opts" (which has
as fields both "destination" and "packdir"), and can encapsulate the
dangling "scratch" field.
Extract that function and make it visible within the repack.h API, and
use it within both `write_cruft_pack()` and `write_filtered_pack()`.
While we're at it, match our modern conventions by returning a "bool"
instead of "int", and use `starts_with()` instead of `skip_prefix()` to
avoid storing the dummy "scratch" variable.
The remaining duplication (that is, that both `write_cruft_pack()` and
`write_filtered_pack()` still both call `write_pack_opts_is_local()`)
will be addressed in the following commit.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both callers within the repack builtin which call functions that take a
'write_pack_opts' structure have the following pattern:
struct write_pack_opts opts = {
.packdir = packdir,
.packtmp = packtmp,
.pack_prefix = find_pack_prefix(packdir, packtmp),
/* ... */
};
int ret = write_some_kind_of_pack(&opts, /* ... */);
, but both "packdir" and "packtmp" are fields within the write_pack_opts
struct itself!
Instead of also computing the pack_prefix ahead of time, let's have the
callees compute it themselves by moving `find_pack_prefix()` out of the
repack builtin, and have it take a write_pack_opts pointer instead of
the "packdir" and "packtmp" fields directly.
This avoids the callers having to do some prep work that is common
between the two of them, but also avoids the potential pitfall of
accidentally writing:
.pack_prefix = find_pack_prefix(packtmp, packdir),
(which is well-typed) when the caller meant to instead write:
.pack_prefix = find_pack_prefix(packdir, packtmp),
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Similar to the changes made in the previous commit to
`write_filtered_pack()`, teach `write_cruft_pack()` to take a
`write_pack_opts` struct and use that where possible.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are various functions within the 'repack' builtin which are
responsible for writing different kinds of packs. They include:
- `static int write_filtered_pack(...)`
- `static int write_cruft_pack(...)`
as well as the function `finish_pack_objects_cmd()`, which is
responsible for finalizing a new pack write, and recording the checksum
of its contents in the 'names' list.
Both of these `write_` functions have a few things in common. They both
take a pointer to the 'pack_objects_args' struct, as well as a pair of
character pointers for `destination` and `pack_prefix`.
Instead of repeating those arguments for each function, let's extract an
options struct called "write_pack_opts" which has these three parameters
as member fields. While we're at it, add fields for "packdir," and
"packtmp", both of which are static variables within the builtin, and
need to be read from within these two functions.
This will shorten the list of parameters that callers have to provide to
`write_filtered_pack()`, avoid ambiguity when passing multiple variables
of the same type, and provide a unified interface for the two functions
mentioned earlier.
(Note that "pack_prefix" can be derived on the fly as a function of
"packdir" and "packtmp", making it unnecessary to store "pack_prefix"
explicitly. This commit ignores that potential cleanup in the name of
doing as few things as possible, but a later commit will make that
change.)
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Now that we have sufficiently cleaned up the write_midx_included_packs()
function, we can move it (along with the struct repack_write_midx_opts)
out of the builtin, and into the repack.h header.
Since this function (and the static ones that it depends on) are
MIDX-specific details of the repacking process, move them to the
repack-midx.c compilation unit instead of the general repack.c one.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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To write a MIDX at the end of a repack operation, 'git repack' presently
computes the set of packs to write into the MIDX, before invoking
`write_midx_included_packs()` with a `string_list` containing those
packs.
The logic for computing which packs are supposed to appear in the
resulting MIDX is within `midx_included_packs()`, where it is aware of
details like which cruft pack(s) were written/combined, if/how we did a
geometric repack, etc.
Computing this list ourselves before providing it to the sole function
to make use of that list `write_midx_included_packs()` is somewhat
awkward. In the future, repack will learn how to write incremental
MIDXs, which will use a very different pack selection routine.
Instead of doing something like:
struct string_list included_packs = STRING_LIST_INIT_DUP;
if (incremental) {
midx_incremental_included_packs(&included_packs, ...):
write_midx_incremental_included_packs(&included_packs, ...);
} else {
midx_included_packs(&included_packs, ...):
write_midx_included_packs(&included_packs, ...);
}
in the future, let's have each function that writes a MIDX be
responsible for itself computing the list of included packs. Inline the
declaration and initialization of `included_packs` into the
`write_midx_included_packs()` function itself, and repeat that pattern
in the future when we introduce new ways to write MIDXs.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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