"git pack-objects" learned to invoke a new hook program that
enumerates extra objects to be used as anchoring points to keep
otherwise unreachable objects in cruft packs.
* tb/gc-recent-object-hook:
gc: introduce `gc.recentObjectsHook`
reachable.c: extract `obj_is_recent()`
Simplify error message when run-command fails to start a command.
* rs/run-command-exec-error-on-noent:
run-command: report exec error even on ENOENT
t1800: loosen matching of error message for bad shebang
discover_git_directory() started modifying the_repository in ebaf3bcf1a
(repository: move global r_f_p_c to repo struct, 2021-06-17), when, in
the repository setup process, we started copying members from the
"struct repository_format" we're inspecting to the appropriate "struct
repository". However, discover_git_directory() isn't actually used in
the setup process (its only caller in the Git binary is
read_early_config()), so it shouldn't be doing this setup at all!
As explained by 16ac8b8db6 (setup: introduce the
discover_git_directory() function, 2017-03-13) and the comment on its
declaration, discover_git_directory() is intended to be an entrypoint
into setup.c machinery that allows the Git directory to be discovered
without side effects, e.g. so that read_early_config() can read
".git/config" before the_repository has been set up.
Fortunately, we didn't start to rely on this unintended behavior between
then and now, so we let's just remove it. It isn't harming anyone, but
it's confusing.
Signed-off-by: Glen Choo <chooglen@google.com>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The reimplemented "git add -i" did not honor color.ui configuration.
* ds/add-i-color-configuration-fix:
add: test use of brackets when color is disabled
add: check color.ui for interactive add
"git cat-file --batch" and friends learned "-Z" that uses NUL
delimiter for both input and output.
* ps/cat-file-null-output:
cat-file: add option '-Z' that delimits input and output with NUL
cat-file: simplify reading from standard input
strbuf: provide CRLF-aware helper to read until a specified delimiter
t1006: modernize test style to use `test_cmp`
t1006: don't strip timestamps from expected results
'git worktree add' learned how to create a worktree based on an
orphaned branch with `--orphan`.
* ja/worktree-orphan:
worktree add: emit warn when there is a bad HEAD
worktree add: extend DWIM to infer --orphan
worktree add: introduce "try --orphan" hint
worktree add: add --orphan flag
t2400: add tests to verify --quiet
t2400: refactor "worktree add" opt exclusion tests
t2400: cleanup created worktree in test
worktree add: include -B in usage docs
"git [-c log.follow=true] log [--follow] ':(glob)f**'" used to barf.
* jk/log-follow-with-non-literal-pathspec:
diff: detect pathspec magic not supported by --follow
diff: factor out --follow pathspec check
pathspec: factor out magic-to-name function
The value of config.worktree is per-repository, but has been kept
in a singleton global variable per process. This has been OK as
most Git operations interacted with a single repository at a time,
but not right for operations like recursive "grep" that want to
access multiple repositories from a single process without forking.
The global variable has been eliminated and made into a member in
the per-repository data structure.
* vd/worktree-config-is-per-repository:
repository: move 'repository_format_worktree_config' to repo scope
config: pass 'repo' directly to 'config_with_options()'
config: use gitdir to get worktree config
"git submodule" code trusted the data coming from the config (and
the in-tree .gitmodules file) too much without validating, leading
to NULL dereference if the user mucks with a repository (e.g.
submodule.<name>.url is removed). This has been corrected.
* tb/submodule-null-deref-fix:
builtin/submodule--helper.c: handle missing submodule URLs
Test style updates.
* jc/test-modernization-2:
t9400-git-cvsserver-server: modernize test format
t9200-git-cvsexportcommit: modernize test format
t9104-git-svn-follow-parent: modernize test format
t9100-git-svn-basic: modernize test format
t7700-repack: modernize test format
t7600-merge: modernize test format
t7508-status: modernize test format
t7201-co: modernize test format
t7111-reset-table: modernize test format
t7110-reset-merge: modernize test format
* jc/test-modernization:
t7101-reset-empty-subdirs: modernize test format
t6050-replace: modernize test format
t5306-pack-nobase: modernize test format
t5303-pack-corruption-resilience: modernize test format
t5301-sliding-window: modernize test format
t5300-pack-object: modernize test format
t4206-log-follow-harder-copies: modernize test format
t4202-log: modernize test format
t4004-diff-rename-symlink: modernize test format
t4003-diff-rename-1: modernize test format
t4002-diff-basic: modernize test format
t3903-stash: modernize test format
t3700-add: modernize test format
t3500-cherry: modernize test format
t1006-cat-file: modernize test format
t1002-read-tree-m-u-2way: modernize test format
t1001-read-tree-m-2way: modernize test format
t3210-pack-refs: modernize test format
t0030-stripspace: modernize test format
t0000-basic: modernize test format
Document more pseudo-refs and teach the command line completion
machinery to complete AUTO_MERGE.
* pb/complete-and-document-auto-merge-and-friends:
completion: complete AUTO_MERGE
Documentation: document AUTO_MERGE
git-merge.txt: modernize word choice in "True merge" section
completion: complete REVERT_HEAD and BISECT_HEAD
revisions.txt: document more special refs
revisions.txt: use description list for special refs
Header files cleanup.
* en/header-split-cache-h-part-3: (28 commits)
fsmonitor-ll.h: split this header out of fsmonitor.h
hash-ll, hashmap: move oidhash() to hash-ll
object-store-ll.h: split this header out of object-store.h
khash: name the structs that khash declares
merge-ll: rename from ll-merge
git-compat-util.h: remove unneccessary include of wildmatch.h
builtin.h: remove unneccessary includes
list-objects-filter-options.h: remove unneccessary include
diff.h: remove unnecessary include of oidset.h
repository: remove unnecessary include of path.h
log-tree: replace include of revision.h with simple forward declaration
cache.h: remove this no-longer-used header
read-cache*.h: move declarations for read-cache.c functions from cache.h
repository.h: move declaration of the_index from cache.h
merge.h: move declarations for merge.c from cache.h
diff.h: move declaration for global in diff.c from cache.h
preload-index.h: move declarations for preload-index.c from elsewhere
sparse-index.h: move declarations for sparse-index.c from cache.h
name-hash.h: move declarations for name-hash.c from cache.h
run-command.h: move declarations for run-command.c from cache.h
...
Clang's sanitizer implementation seems to work better than GCC's.
* jk/ci-use-clang-for-sanitizer-jobs:
ci: drop linux-clang job
ci: run ASan/UBSan in a single job
ci: use clang for ASan/UBSan checks
Code clean-up.
* ps/fetch-cleanups:
fetch: use `fetch_config` to store "submodule.fetchJobs" value
fetch: use `fetch_config` to store "fetch.parallel" value
fetch: use `fetch_config` to store "fetch.recurseSubmodules" value
fetch: use `fetch_config` to store "fetch.showForcedUpdates" value
fetch: use `fetch_config` to store "fetch.pruneTags" value
fetch: use `fetch_config` to store "fetch.prune" value
fetch: pass through `fetch_config` directly
fetch: drop unneeded NULL-check for `remote_ref`
fetch: drop unused DISPLAY_FORMAT_UNKNOWN enum value
`credential reject` sends the erase action to each helper, but the
exact behaviour of erase isn't specified in documentation or tests.
Some helpers (such as credential-store and credential-libsecret) delete
all matching credentials, others (such as credential-cache) delete at
most one matching credential.
Test that helpers erase all matching credentials. This behaviour is
easiest to reason about. Users expect that `echo
"url=https://example.com" | git credential reject` or `echo
"url=https://example.com\nusername=tim" | git credential reject` erase
all matching credentials.
Fix credential-cache.
Signed-off-by: M Hickford <mirth.hickford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Test that credential helpers do not erase a password distinct from the
input. Such calls can happen when multiple credential helpers are
configured.
Fixes for credential-cache and credential-store.
Signed-off-by: M Hickford <mirth.hickford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Be more up-front about what trailers are in practice with examples, to
give the reader a visual cue while they go on to read the rest of the
description.
Also add an example for multiline values.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The 'key' option is used frequently in the examples at the bottom but
there is no mention of it in the description.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This puts the deprecation notice up front, instead of leaving it to the
next paragraph.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We already use angle brackets elsewhere, so this makes things more
consistent.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The phrase "many rules" gets essentially repeated again with "many other
rules", so remove this repetition.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Previously, "message" could mean the input, output, commit message, or
"internal body text inside the commit message" (in the EXAMPLES
section). Avoid overloading this term by using the appropriate meanings
explicitly.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The command can take inputs that are either just a commit message, or
an email-like output such as git-format-patch which includes a commit
message, "---" divider, and patch part. The existing explanation blends
these two inputs together in the first sentence
This command reads some patches or commit messages
which then necessitates using the "commit message part" phrasing (as
opposed to just "commit message") because the input is ambiguous per the
above definition.
This change separates the two input types and explains them separately,
and so there is no longer a need to use the "commit message part"
phrase.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This matches the order already used in the NAME section.
Signed-off-by: Linus Arver <linusa@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Some atoms that can be used in "--format=<format>" for "git ls-tree"
were not supported by "git ls-files", even though they were relevant
in the context of the latter.
* zh/ls-files-format-atoms:
ls-files: align format atoms with ls-tree
"git pack-refs" learns "--include" and "--exclude" to tweak the ref
hierarchy to be packed using pattern matching.
* jc/pack-ref-exclude-include:
pack-refs: teach pack-refs --include option
pack-refs: teach --exclude option to exclude refs from being packed
docs: clarify git-pack-refs --all will pack all refs
Doc update.
* sa/doc-ls-remote:
ls-remote doc: document the output format
ls-remote doc: explain what each example does
ls-remote doc: show peeled tags in examples
ls-remote doc: remove redundant --tags example
show-branch doc: say <ref>, not <reference>
show-ref doc: update for internal consistency
The "-s" (silent, squelch) option of the "diff" family of commands
did not interact with other options that specify the output format
well. This has been cleaned up so that it will clear all the
formatting options given before.
* jc/diff-s-with-other-options:
diff: fix interaction between the "-s" option and other options
"git tag" learned to leave the "$GIT_DIR/TAG_EDITMSG" file when the
command failed, so that the user can salvage what they typed.
* kh/keep-tag-editmsg-upon-failure:
tag: keep the message file in case ref transaction fails
t/t7004-tag: add regression test for successful tag creation
doc: tag: document `TAG_EDITMSG`
This patch introduces a new multi-valued configuration option,
`gc.recentObjectsHook` as a means to mark certain objects as recent (and
thus exempt from garbage collection), regardless of their age.
When performing a garbage collection operation on a repository with
unreachable objects, Git makes its decision on what to do with those
object(s) based on how recent the objects are or not. Generally speaking,
unreachable-but-recent objects stay in the repository, and older objects
are discarded.
However, we have no convenient way to keep certain precious, unreachable
objects around in the repository, even if they have aged out and would
be pruned. Our options today consist of:
- Point references at the reachability tips of any objects you
consider precious, which may be undesirable or infeasible if there
are many such objects.
- Track them via the reflog, which may be undesirable since the
reflog's lifetime is limited to that of the reference it's tracking
(and callers may want to keep those unreachable objects around for
longer).
- Extend the grace period, which may keep around other objects that
the caller *does* want to discard.
- Manually modify the mtimes of objects you want to keep. If those
objects are already loose, this is easy enough to do (you can just
enumerate and `touch -m` each one).
But if they are packed, you will either end up modifying the mtimes
of *all* objects in that pack, or be forced to write out a loose
copy of that object, both of which may be undesirable. Even worse,
if they are in a cruft pack, that requires modifying its `*.mtimes`
file by hand, since there is no exposed plumbing for this.
- Force the caller to construct the pack of objects they want
to keep themselves, and then mark the pack as kept by adding a
".keep" file. This works, but is burdensome for the caller, and
having extra packs is awkward as you roll forward your cruft pack.
This patch introduces a new option to the above list via the
`gc.recentObjectsHook` configuration, which allows the caller to
specify a program (or set of programs) whose output is treated as a set
of objects to treat as recent, regardless of their true age.
The implementation is straightforward. Git enumerates recent objects via
`add_unseen_recent_objects_to_traversal()`, which enumerates loose and
packed objects, and eventually calls add_recent_object() on any objects
for which `want_recent_object()`'s conditions are met.
This patch modifies the recency condition from simply "is the mtime of
this object more recent than the cutoff?" to "[...] or, is this object
mentioned by at least one `gc.recentObjectsHook`?".
Depending on whether or not we are generating a cruft pack, this allows
the caller to do one of two things:
- If generating a cruft pack, the caller is able to retain additional
objects via the cruft pack, even if they would have otherwise been
pruned due to their age.
- If not generating a cruft pack, the caller is likewise able to
retain additional objects as loose.
A potential alternative here is to introduce a new mode to alter the
contents of the reachable pack instead of the cruft one. One could
imagine a new option to `pack-objects`, say `--extra-reachable-tips`
that does the same thing as above, adding the visited set of objects
along the traversal to the pack.
But this has the unfortunate side-effect of altering the reachability
closure of that pack. If parts of the unreachable object graph mentioned
by one or more of the "extra reachable tips" programs is not closed,
then the resulting pack won't be either. This makes it impossible in the
general case to write out reachability bitmaps for that pack, since
closure is a requirement there.
Instead, keep these unreachable objects in the cruft pack (or set of
unreachable, loose objects) instead, to ensure that we can continue to
have a pack containing just reachable objects, which is always safe to
write a bitmap over.
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When enumerating objects in order to add recent ones (i.e. those whose
mtime is strictly newer than the cutoff) as tips of a reachability
traversal, `add_recent_object()` discards objects which do not meet the
recency criteria.
The subsequent commit will make checking whether or not an object is
recent also consult the list of hooks in `pack.recentHook`. Isolate this
check in its own function to keep the additional complexity outside of
`add_recent_object()`.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
