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When a fetch with the --filter argument is made, the configured default
filter is set even if one already exists. This change was made in
5e46139376 ("builtin/fetch: remove unique promisor remote limitation",
2019-06-25) - in particular, changing from:
* If this is the FIRST partial-fetch request, we enable partial
* on this repo and remember the given filter-spec as the default
* for subsequent fetches to this remote.
to:
* If this is a partial-fetch request, we enable partial on
* this repo if not already enabled and remember the given
* filter-spec as the default for subsequent fetches to this
* remote.
(The given filter-spec is "remembered" even if there is already an
existing one.)
This is problematic whenever a lazy fetch is made, because lazy fetches
are made using "git fetch --filter=blob:none", but this will also happen
if the user invokes "git fetch --filter=<filter>" manually. Therefore,
restore the behavior prior to 5e46139376, which writes a filter-spec
only if the current fetch request is the first partial-fetch one (for
that remote).
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Unlike "git config --local", "git config --worktree" did not fail
early and cleanly when started outside a git repository.
* mt/config-fail-nongit-early:
config: complain about --worktree outside of a git repo
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"git status --short" quoted a path with SP in it when tracked, but
not those that are untracked, ignored or unmerged. They are all
shown quoted consistently.
* jc/quote-path-cleanup:
quote: turn 'nodq' parameter into a set of flags
quote: rename misnamed sq_lookup[] to cq_lookup[]
wt-status: consistently quote paths in "status --short" output
quote_path: code clarification
quote_path: optionally allow quoting a path with SP in it
quote_path: give flags parameter to quote_path()
quote_path: rename quote_path_relative() to quote_path()
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"add -i/-p" fixes.
* jk/add-i-fixes:
add--interactive.perl: specify --no-color explicitly
add-patch: fix inverted return code of repo_read_index()
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Test fix.
* al/t3200-back-on-a-branch:
t3200: clean side effect of git checkout --orphan
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Tracked paths with SP in them were cquoted in "git status --short"
output, but untracked, ignored, and unmerged paths weren't.
The test was stolen from a patch to fix output for the 'untracked'
paths by brian m. carlson, with similar tests added for 'ignored'
ones.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git status" has trouble showing where it came from by interpreting
reflog entries that recordcertain events, e.g. "checkout @{u}", and
gives a hard/fatal error. Even though it inherently is impossible
to give a correct answer because the reflog entries lose some
information (e.g. "@{u}" does not record what branch the user was
on hence which branch 'the upstream' needs to be computed, and even
if the record were available, the relationship between branches may
have changed), at least hide the error to allow "status" show its
output.
* jt/interpret-branch-name-fallback:
wt-status: tolerate dangling marks
refs: move dwim_ref() to header file
sha1-name: replace unsigned int with option struct
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The "--format=" option to the "for-each-ref" command and friends
learned a few more tricks, e.g. the ":short" suffix that applies to
"objectname" now also can be used for "parent", "tree", etc.
* hv/ref-filter-misc:
ref-filter: add `sanitize` option for 'subject' atom
pretty: refactor `format_sanitized_subject()`
ref-filter: add `short` modifier to 'parent' atom
ref-filter: add `short` modifier to 'tree' atom
ref-filter: rename `objectname` related functions and fields
ref-filter: modify error messages in `grab_objectname()`
ref-filter: refactor `grab_objectname()`
ref-filter: support different email formats
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Fixups to a topic in 'next'.
* ss/submodule-summary-in-c-fixes:
t7421: eliminate 'grep' check in t7421.4 for mingw compatibility
submodule: fix style in function definition
submodule: eliminate unused parameters from print_submodule_summary()
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"git worktree" gained a "repair" subcommand to help users recover
after moving the worktrees or repository manually without telling
Git. Also, "git init --separate-git-dir" no longer corrupts
administrative data related to linked worktrees.
* es/worktree-repair:
init: make --separate-git-dir work from within linked worktree
init: teach --separate-git-dir to repair linked worktrees
worktree: teach "repair" to fix outgoing links to worktrees
worktree: teach "repair" to fix worktree back-links to main worktree
worktree: add skeleton "repair" command
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When a packfile is removed by "git repack", multi-pack-index gets
cleared; the code was taught to do so less aggressively by first
checking if the midx actually refers to a pack that no longer
exists.
* tb/repack-clearing-midx:
midx: traverse the local MIDX first
builtin/repack.c: invalidate MIDX only when necessary
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Yet another subcommand of "git submodule" is getting rewritten in C.
* ss/submodule-summary-in-c:
submodule: port submodule subcommand 'summary' from shell to C
t7421: introduce a test script for verifying 'summary' output
submodule: rename helper functions to avoid ambiguity
submodule: remove extra line feeds between callback struct and macro
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Running `git config --worktree` outside of a git repository hits a BUG()
when trying to enumerate the worktrees. Let's catch this error earlier
and die() with a friendlier message.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "refuse --edit-description on unborn branch for now" test in t3200
switches to an orphan branch, causing subsequent git commands
referencing HEAD to fail. Avoid this side-effect by switching back to
master after the test finishes.
This has gone undetected, as the next affected test expects failure -
but it currently fails for the wrong reason.
Verbose output of the next test referencing HEAD,
"--merged is incompatible with --no-merged":
fatal: malformed object name HEAD
Which this commit corrects to:
error: option `no-merged' is incompatible with --merged
Signed-off-by: Aaron Lipman <alipman88@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our color tests of "git add -p" do something a bit different from how a
normal user would behave: we pretend there's a pager in use, so that Git
thinks it's OK to write color to a non-tty stdout. This comes from
8539b46534 (t3701: avoid depending on the TTY prerequisite, 2019-12-06),
which allows us to avoid a lot of complicated mock-tty code.
However, those environment variables also make their way down to
sub-processes of add--interactive, including the "diff-files" we run to
generate the patches. As a result, it thinks it should output color,
too. So in t3701.50, for example, the machine-readable version of the
diff we get unexpectedly has color in it. We fail to parse it as a diff
and think there are zero hunks.
The test does still pass, though, because even with zero hunks we'll
dump the diff header (and we consider those unparseable bits to be part
of the header!), and so the output still has the expected color codes in
it. We don't notice that the command was totally broken and failed to
apply anything.
And in fact we're not really testing what we think we are about the
color, either. While add--interactive does correctly show the version we
got from running "diff-files --color", we'd also pass the test if we had
accidentally shown the machine-readable version, too, since it
(erroneously) has color codes in it.
One could argue that the test isn't very realistic; it's setting up this
"pretend there's a pager" situation to get around the tty restrictions
of the test environment. So one option would be to move back towards
using a real tty. But the behavior of add--interactive really is
user-visible here. If a user, for whatever reason, did run "git
--paginate add --patch" (perhaps because their pager is really a filter
or something), the command would totally fail to do anything useful.
Since we know that we don't want color in this output, let's just make
add--interactive more defensive, and say "--no-color" explicitly. It
doesn't hurt anything in the common case, but it fixes this odd case and
lets our test function properly again.
Note that the C builtin run_add_p() already passes --no-color, so it
doesn't need a similar fix. That will eventually replace this perl code
anyway, but the test change here will be valuable for ensuring that.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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After applying hunks to a file with "add -p", the C patch_update_file()
function tries to refresh the index (just like the perl version does).
We can only refresh the index if we're able to read it in, so we first
check the return value of repo_read_index(). But unlike many functions,
where "0" is success, that function is documented to return the number
of entries in the index. Hence we should be checking for success with a
non-negative return value.
Neither the tests nor any users seem to have noticed this, probably due
to a combination of:
- this affects only the C version, which is not yet the default
- following it up with any porcelain command like "git diff" or "git
commit" would refresh the index automatically.
But you can see the problem by running the plumbing "git diff-files"
immediately after "add -p" stages all hunks. Running the new test with
GIT_TEST_ADD_I_USE_BUILTIN=1 fails without the matching code change.
Signed-off-by: Jeff King <peff@peff.net>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git diff --stat -w" showed 0-line changes for paths whose changes
were only whitespaces, which was not intuitive. We now omit such
paths from the stat output.
* mr/diff-hide-stat-wo-textual-change:
diff: teach --stat to ignore uninteresting modifications
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Updates to on-demand fetching code in lazily cloned repositories.
* jt/lazy-fetch:
fetch: no FETCH_HEAD display if --no-write-fetch-head
fetch-pack: remove no_dependents code
promisor-remote: lazy-fetch objects in subprocess
fetch-pack: do not lazy-fetch during ref iteration
fetch: only populate existing_refs if needed
fetch: avoid reading submodule config until needed
fetch: allow refspecs specified through stdin
negotiator/noop: add noop fetch negotiator
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Trim an unused binary and turn a bunch of commands into built-in.
* jk/slimmed-down:
drop vcs-svn experiment
make git-fast-import a builtin
make git-bugreport a builtin
make credential helpers builtins
Makefile: drop builtins from MSVC pdb list
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Bugfix for "git fetch" when the packfile URI capability is in use.
* jt/fetch-pack-loosen-validation-with-packfile-uri:
fetch-pack: make packfile URIs work with transfer.fsckobjects
fetch-pack: document only_packfile in get_pack()
(various): document from_promisor parameter
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Test clean-up.
* ss/t7401-modernize:
t7401: add a NEEDSWORK
t7401: change indentation for enhanced readability
t7401: change syntax of test_i18ncmp calls for clarity
t7401: use 'short' instead of 'verify' and cut in rev-parse calls
t7401: modernize style
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"git rebase -i" learns a bit more options.
* pw/rebase-i-more-options:
t3436: do not run git-merge-recursive in dashed form
rebase: add --reset-author-date
rebase -i: support --ignore-date
rebase -i: support --committer-date-is-author-date
am: stop exporting GIT_COMMITTER_DATE
rebase -i: add --ignore-whitespace flag
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When a user checks out the upstream branch of HEAD, the upstream branch
not being a local branch, and then runs "git status", like this:
git clone $URL client
cd client
git checkout @{u}
git status
no status is printed, but instead an error message:
fatal: HEAD does not point to a branch
(This error message when running "git branch" persists even after
checking out other things - it only stops after checking out a branch.)
This is because "git status" reads the reflog when determining the "HEAD
detached" message, and thus attempts to DWIM "@{u}", but that doesn't
work because HEAD no longer points to a branch.
Therefore, when calculating the status of a worktree, tolerate dangling
marks. This is done by adding an additional parameter to
dwim_ref() and repo_dwim_ref().
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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887952b8c6 ("fetch: optionally allow disabling FETCH_HEAD update",
2020-08-18) introduced the ability to disable writing to FETCH_HEAD
during fetch, but did not suppress the "<source> -> FETCH_HEAD" message
when this ability is used. This message is misleading in this case,
because FETCH_HEAD is not written. Also, because "fetch" is used to
lazy-fetch missing objects in a partial clone, this significantly
clutters up the output in that case since the objects to be fetched are
potentially numerous.
Therefore, suppress this message when --no-write-fetch-head is passed
(but not when --dry-run is set).
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code simplification by removing ineffective optimization.
* ps/ref-transaction-hook:
refs: remove lookup cache for reference-transaction hook
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Feeding "$ZERO_OID" to "git log --ignore-missing --stdin", and
running "git log --ignore-missing $ZERO_OID" fell back to start
digging from HEAD; it has been corrected to become a no-op, like
"git log --tags=no-tag-matches-this-pattern" does.
* jk/rev-input-given-fix:
revision: set rev_input_given in handle_revision_arg()
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Error message update.
* jc/ident-whose-ident:
ident: say whose identity is missing when giving user.name hint
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"git restore/checkout --no-overlay" with wildcarded pathspec
mistakenly removed matching paths in subdirectories, which has been
corrected.
* rs/checkout-no-overlay-pathspec-fix:
checkout, restore: make pathspec recursive
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Long ago, we decided to use 3 threads by default when running the
index-pack task in parallel, which has been adjusted a bit upwards.
* jk/index-pack-w-more-threads:
index-pack: adjust default threading cap
p5302: count up to online-cpus for thread tests
p5302: disable thread-count parameter tests by default
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The parser for "git for-each-ref --format=..." was too loose when
parsing the "%(trailers...)" atom, and forgot that "trailers" and
"trailers:<modifiers>" are the only two allowed forms, which has
been corrected.
* hv/ref-filter-trailers-atom-parsing-fix:
ref-filter: 'contents:trailers' show error if `:` is missing
t6300: unify %(trailers) and %(contents:trailers) tests
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Updates into a lazy/partial clone with a submodule did not work
well with transfer.fsckobjects set.
* jt/promisor-pack-fix:
fetch-pack: in partial clone, pass --promisor
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The output from the "diff" family of the commands had abbreviated
object names of blobs involved in the patch, but its length was not
affected by the --abbrev option. Now it is.
* dd/diff-customize-index-line-abbrev:
diff: index-line: respect --abbrev in object's name
t4013: improve diff-post-processor logic
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The intention of `git init --separate-work-dir=<path>` is to move the
.git/ directory to a location outside of the main worktree. When used
within a linked worktree, however, rather than moving the .git/
directory as intended, it instead incorrectly moves the worktree's
.git/worktrees/<id> directory to <path>, thus disconnecting the linked
worktree from its parent repository and breaking the worktree in the
process since its local .git file no longer points at a location at
which it can find the object database. Fix this broken behavior.
An intentional side-effect of this change is that it also closes a
loophole not caught by ccf236a23a (init: disallow --separate-git-dir
with bare repository, 2020-08-09) in which the check to prevent
--separate-git-dir being used in conjunction with a bare repository was
unable to detect the invalid combination when invoked from within a
linked worktree. Therefore, add a test to verify that this loophole is
closed, as well.
Reported-by: Henré Botha <henrebotha@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A linked worktree's .git file is a "gitfile" pointing at the
.git/worktrees/<id> directory within the repository. When `git init
--separate-git-dir=<path>` is used on an existing repository to relocate
the repository's .git/ directory to a different location, it neglects to
update the .git files of linked worktrees, thus breaking the worktrees
by making it impossible for them to locate the repository. Fix this by
teaching --separate-git-dir to repair the .git file of each linked
worktree to point at the new repository location.
Reported-by: Henré Botha <henrebotha@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The .git/worktrees/<id>/gitdir file points at the location of a linked
worktree's .git file. Its content must be of the form
/path/to/worktree/.git (from which the location of the worktree itself
can be derived by stripping the "/.git" suffix). If the gitdir file is
deleted or becomes corrupted or outdated, then Git will be unable to
find the linked worktree. An easy way for the gitdir file to become
outdated is for the user to move the worktree manually (without using
"git worktree move"). Although it is possible to manually update the
gitdir file to reflect the new linked worktree location, doing so
requires a level of knowledge about worktree internals beyond what a
user should be expected to know offhand.
Therefore, teach "git worktree repair" how to repair broken or outdated
.git/worktrees/<id>/gitdir files automatically. (For this to work, the
command must either be invoked from within the worktree whose gitdir
file requires repair, or from within the main or any linked worktree by
providing the path of the broken worktree as an argument to "git
worktree repair".)
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The .git file in a linked worktree is a "gitfile" which points back to
the .git/worktrees/<id> entry in the main worktree or bare repository.
If a worktree's .git file is deleted or becomes corrupted or outdated,
then the linked worktree won't know how to find the repository or any of
its own administrative files (such as 'index', 'HEAD', etc.). An easy
way for the .git file to become outdated is for the user to move the
main worktree or bare repository. Although it is possible to manually
update each linked worktree's .git file to reflect the new repository
location, doing so requires a level of knowledge about worktree
internals beyond what a user should be expected to know offhand.
Therefore, teach "git worktree repair" how to repair broken or outdated
worktree .git files automatically. (For this to work, the command must
be invoked from within the main worktree or bare repository, or from
within a worktree which has not become disconnected from the repository
-- such as one which was created after the repository was moved.)
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, subject does not take any arguments. This commit introduce
`sanitize` formatting option to 'subject' atom.
`subject:sanitize` - print sanitized subject line, suitable for a filename.
e.g.
%(subject): "the subject line"
%(subject:sanitize): "the-subject-line"
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Sometimes while using 'parent' atom, user might want to see abbrev hash
instead of full 40 character hash.
Just like 'objectname', it might be convenient for users to have the
`:short` and `:short=<length>` option for printing 'parent' hash.
Let's introduce `short` option to 'parent' atom.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Sometimes while using 'tree' atom, user might want to see abbrev hash
instead of full 40 character hash.
Just like 'objectname', it might be convenient for users to have the
`:short` and `:short=<length>` option for printing 'tree' hash.
Let's introduce `short` option to 'tree' atom.
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, ref-filter only supports printing email with angle brackets.
Let's add support for two more email options.
- trim : for email without angle brackets.
- localpart : for the part before the @ sign out of trimmed email
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Heba Waly <heba.waly@gmail.com>
Signed-off-by: Hariom Verma <hariom18599@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up.
* jk/leakfix:
submodule--helper: fix leak of core.worktree value
config: fix leak in git_config_get_expiry_in_days()
config: drop git_config_get_string_const()
config: fix leaks from git_config_get_string_const()
checkout: fix leak of non-existent branch names
submodule--helper: use strbuf_release() to free strbufs
clear_pattern_list(): clear embedded hashmaps
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The 'grep' check in test 4 of t7421 resulted in the failure of t7421 on
Windows due to a different error message
error: cannot spawn git: No such file or directory
instead of
fatal: exec 'rev-parse': cd to 'my-subm' failed: No such file or directory
Tighten up the check to compute 'src_abbrev' by guarding the
'verify_submodule_committish()' call using `p->status !='D'`, so that
the former isn't called in case of non-existent submodule directory,
consequently, there is no such error message on any execution
environment. The same need not be implemented for 'dst_abbrev' and is
rather redundant since the conditional 'if (S_ISGITLINK(p->mod_dst))'
already guards the 'verify_submodule_committish()' when we have a
status of 'D'.
Therefore, eliminate the 'grep' check in t7421. Instead, verify the
absence of an error message by doing a 'test_must_be_empty' on the
file containing the error.
Reported-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Helped-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Mentored-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com>
Signed-off-by: Shourya Shukla <shouryashukla.oo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Worktree administrative files can become corrupted or outdated due to
external factors. Although, it is often possible to recover from such
situations by hand-tweaking these files, doing so requires intimate
knowledge of worktree internals. While information necessary to make
such repairs manually can be obtained from git-worktree.txt and
gitrepository-layout.txt, we can assist users more directly by teaching
git-worktree how to repair its administrative files itself (at least to
some extent). Therefore, add a "git worktree repair" command which
attempts to correct common problems which may arise due to factors
beyond Git's control.
At this stage, the "repair" command is a mere skeleton; subsequent
commits will flesh out the functionality.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 525e18c04b (midx: clear midx on repack, 2018-07-12), 'git repack'
learned to remove a multi-pack-index file if it added or removed a pack
from the object store.
This mechanism is a little over-eager, since it is only necessary to
drop a MIDX if 'git repack' removes a pack that the MIDX references.
Adding a pack outside of the MIDX does not require invalidating the
MIDX, and likewise for removing a pack the MIDX does not know about.
Teach 'git repack' to check for this by loading the MIDX, and checking
whether the to-be-removed pack is known to the MIDX. This requires a
slightly odd alternation to a test in t5319, which is explained with a
comment. A new test is added to show that the MIDX is left alone when
both packs known to it are marked as .keep, but two packs unknown to it
are removed and combined into one new pack.
Helped-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 7ba826290a (revision: add rev_input_given flag, 2017-08-02) added
a flag to rev_info to tell whether we got any revision arguments. As
explained there, this is necessary because some revision arguments may
not produce any pending traversal objects, but should still inhibit
default behaviors (e.g., a glob that matches nothing).
However, it only set the flag in the globbing code, but not for
revisions we get on the command-line or via stdin. This leads to two
problems:
- the command-line code keeps its own separate got_rev_arg flag; this
isn't wrong, but it's confusing and an extra maintenance burden
- even specifically-named rev arguments might end up not adding any
pending objects: if --ignore-missing is set, then specifying a
missing object is a noop rather than an error.
And that leads to some user-visible bugs:
- when deciding whether a default rev like "HEAD" should kick in, we
check both got_rev_arg and rev_input_given. That means that
"--ignore-missing $ZERO_OID" works on the command-line (where we set
got_rev_arg) but not on --stdin (where we don't)
- when rev-list decides whether it should complain that it wasn't
given a starting point, it relies on rev_input_given. So it can't
even get the command-line "--ignore-missing $ZERO_OID" right
Let's consistently set the flag if we got any revision argument. That
lets us clean up the redundant got_rev_arg, and fixes both of those bugs
(but note there are three new tests: we'll confirm the already working
git-log command-line case).
A few implementation notes:
- conceptually we want to set the flag whenever handle_revision_arg()
finds an actual revision arg ("handles" it, you might say). But it
covers a ton of cases with early returns. Rather than annotating
each one, we just wrap it and use its success exit-code to set the
flag in one spot.
- the new rev-list test is in t6018, which is titled to cover globs.
This isn't exactly a glob, but it made sense to stick it with the
other tests that handle the "even though we got a rev, we have no
pending objects" case, which are globs.
- the tests check for the oid of a missing object, which it's pretty
clear --ignore-missing should ignore. You can see the same behavior
with "--ignore-missing a-ref-that-does-not-exist", because
--ignore-missing treats them both the same. That's perhaps less
clearly correct, and we may want to change that in the future. But
the way the code and tests here are written, we'd continue to do the
right thing even if it does.
Reported-by: Bryan Turner <bturner@atlassian.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When adding the reference-transaction hook, there were concerns about
the performance impact it may have on setups which do not make use of
the new hook at all. After all, it gets executed every time a reftx is
prepared, committed or aborted, which linearly scales with the number of
reference-transactions created per session. And as there are code paths
like `git push` which create a new transaction for each reference to be
updated, this may translate to calling `find_hook()` quite a lot.
To address this concern, a cache was added with the intention to not
repeatedly do negative hook lookups. Turns out this cache caused a
regression, which was fixed via e5256c82e5 (refs: fix interleaving hook
calls with reference-transaction hook, 2020-08-07). In the process of
discussing the fix, we realized that the cache doesn't really help even
in the negative-lookup case. While performance tests added to benchmark
this did show a slight improvement in the 1% range, this really doesn't
warrent having a cache. Furthermore, it's quite flaky, too. E.g. running
it twice in succession produces the following results:
Test master pks-reftx-hook-remove-cache
--------------------------------------------------------------------------
1400.2: update-ref 2.79(2.16+0.74) 2.73(2.12+0.71) -2.2%
1400.3: update-ref --stdin 0.22(0.08+0.14) 0.21(0.08+0.12) -4.5%
Test master pks-reftx-hook-remove-cache
--------------------------------------------------------------------------
1400.2: update-ref 2.70(2.09+0.72) 2.74(2.13+0.71) +1.5%
1400.3: update-ref --stdin 0.21(0.10+0.10) 0.21(0.08+0.13) +0.0%
One case notably absent from those benchmarks is a single executable
searching for the hook hundreds of times, which is exactly the case for
which the negative cache was added. p1400.2 will spawn a new update-ref
for each transaction and p1400.3 only has a single reference-transaction
for all reference updates. So this commit adds a third benchmark, which
performs an non-atomic push of a thousand references. This will create a
new reference transaction per reference. But even for this case, the
negative cache doesn't consistently improve performance:
Test master pks-reftx-hook-remove-cache
--------------------------------------------------------------------------
1400.4: nonatomic push 6.63(6.50+0.13) 6.81(6.67+0.14) +2.7%
1400.4: nonatomic push 6.35(6.21+0.14) 6.39(6.23+0.16) +0.6%
1400.4: nonatomic push 6.43(6.31+0.13) 6.42(6.28+0.15) -0.2%
So let's just remove the cache altogether to simplify the code.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When fetching with packfile URIs and transfer.fsckobjects=1, use the
--fsck-objects instead of the --strict flag when invoking index-pack so
that links are not checked, only objects. This is because incomplete
links are expected. (A subsequent connectivity check will be done when
all the packs have been downloaded regardless of whether
transfer.fsckobjects is set.)
This is similar to 98a2ea46c2 ("fetch-pack: do not check links for
partial fetch", 2018-03-15), but for packfile URIs instead of partial
clones.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The patch-id computation did not ignore the "incomplete last line"
marker like whitespaces.
* rs/patch-id-with-incomplete-line:
patch-id: ignore newline at end of file in diff_flush_patch_id()
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"git fetch" learned --no-write-fetch-head option to avoid writing
the FETCH_HEAD file.
* jc/no-update-fetch-head:
fetch: optionally allow disabling FETCH_HEAD update
|
Jonathan Tan
Junio C Hamano
Matheus Tavares
Aaron Lipman
Jeff King
Eric Sunshine
Hariom Verma
Shourya Shukla
Taylor Blau
Patrick Steinhardt