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If one of the options --before, --min-age or --until is given,
limit_list() filters out younger commits early on. Line-log needs all
those commits to trace the movement of line ranges, though. Skip this
optimization if both are used together.
Reported-by: Мария Долгополова <dolgopolovamariia@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git diff-files" has been taught to say paths that are marked as
intent-to-add are new files, not modified from an empty blob.
* sk/diff-files-show-i-t-a-as-new:
diff-files: treat "i-t-a" files as "not-in-index"
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Leakfix.
* rs/commit-reach-leakfix:
commit-reach: plug minor memory leak after using is_descendant_of()
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Leakfix.
* rs/pull-leakfix:
pull: plug minor memory leak after using is_descendant_of()
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A misdesigned strbuf_write_fd() function has been retired.
* rs/retire-strbuf-write-fd:
strbuf: remove unreferenced strbuf_write_fd method.
bugreport.c: replace strbuf_write_fd with write_in_full
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An in-code comment in "git diff" has been updated.
* dl/diff-usage-comment-update:
builtin/diff: fix botched update of usage comment
builtin/diff: update usage comment
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Allow runtime upgrade of the repository format version, which needs
to be done carefully.
There is a rather unpleasant backward compatibility worry with the
last step of this series, but it is the right thing to do in the
longer term.
* xl/upgrade-repo-format:
check_repository_format_gently(): refuse extensions for old repositories
sparse-checkout: upgrade repository to version 1 when enabling extension
fetch: allow adding a filter after initial clone
repository: add a helper function to perform repository format upgrade
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A branch name used in a test has been clarified to match what is
going on.
* pb/t4014-unslave:
t4014: do not use "slave branch" nomenclature
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The "fetch/clone" protocol has been updated to allow the server to
instruct the clients to grab pre-packaged packfile(s) in addition
to the packed object data coming over the wire.
* jt/cdn-offload:
upload-pack: fix a sparse '0 as NULL pointer' warning
upload-pack: send part of packfile response as uri
fetch-pack: support more than one pack lockfile
upload-pack: refactor reading of pack-objects out
Documentation: add Packfile URIs design doc
Documentation: order protocol v2 sections
http-fetch: support fetching packfiles by URL
http-fetch: refactor into function
http: refactor finish_http_pack_request()
http: use --stdin when indexing dumb HTTP pack
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Rewrite of parts of the scripted "git submodule" Porcelain command
continues; this time it is "git submodule set-branch" subcommand's
turn.
* ss/submodule-set-branch-in-c:
submodule: port subcommand 'set-branch' from shell to C
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"git merge-base --is-ancestor" is taught to take advantage of the
commit graph.
* ds/merge-base-is-ancestor-optim:
commit-reach: use fast logic in repo_in_merge_base
commit-reach: create repo_is_descendant_of()
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Code clean-up around "git branch" with a minor bugfix.
* dl/branch-cleanup:
branch: don't mix --edit-description
t3200: test for specific errors
t3200: rename "expected" to "expect"
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Code clean-up in the codepath that serves "git fetch" continues.
* cc/upload-pack-data-3:
upload-pack: refactor common code into do_got_oid()
upload-pack: move oldest_have to upload_pack_data
upload-pack: pass upload_pack_data to got_oid()
upload-pack: pass upload_pack_data to ok_to_give_up()
upload-pack: pass upload_pack_data to send_acks()
upload-pack: pass upload_pack_data to process_haves()
upload-pack: change allow_unadvertised_object_request to an enum
upload-pack: move allow_unadvertised_object_request to upload_pack_data
upload-pack: move extra_edge_obj to upload_pack_data
upload-pack: move shallow_nr to upload_pack_data
upload-pack: pass upload_pack_data to send_unshallow()
upload-pack: pass upload_pack_data to deepen_by_rev_list()
upload-pack: pass upload_pack_data to deepen()
upload-pack: pass upload_pack_data to send_shallow_list()
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"git diff" used to take arguments in random and nonsense range
notation, e.g. "git diff A..B C", "git diff A..B C...D", etc.,
which has been cleaned up.
* ct/diff-with-merge-base-clarification:
Documentation: usage for diff combined commits
git diff: improve range handling
t/t3430: avoid undefined git diff behavior
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Code clean-up of "git clean" resulted in a fix of recent
performance regression.
* en/clean-cleanups:
clean: optimize and document cases where we recurse into subdirectories
clean: consolidate handling of ignored parameters
dir, clean: avoid disallowed behavior
dir: fix a few confusing comments
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The command line completion (in contrib/) learned to complete
options that the "git switch" command takes.
* jk/complete-git-switch:
completion: improve handling of --orphan option of switch/checkout
completion: improve handling of -c/-C and -b/-B in switch/checkout
completion: improve handling of --track in switch/checkout
completion: improve handling of --detach in checkout
completion: improve completion for git switch with no options
completion: improve handling of DWIM mode for switch/checkout
completion: perform DWIM logic directly in __git_complete_refs
completion: extract function __git_dwim_remote_heads
completion: replace overloaded track term for __git_complete_refs
completion: add tests showing subpar switch/checkout --orphan logic
completion: add tests showing subpar -c/C argument completion
completion: add tests showing subpar -c/-C startpoint completion
completion: add tests showing subpar switch/checkout --track logic
completion: add tests showing subar checkout --detach logic
completion: add tests showing subpar DWIM logic for switch/checkout
completion: add test showing subpar git switch completion
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In the previous commit, an attempt was made to correct the "N=1, M=0"
case. However, the fix was botched and it introduced two half-correct
sections by mistake. Combine these half-correct sections into one fully
correct section.
Signed-off-by: Denton Liu <liu.denton@gmail.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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The effect of sparse checkout settings on submodules is documented.
* en/sparse-with-submodule-doc:
git-sparse-checkout: clarify interactions with submodules
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The same worktree directory must be registered only once, but
"git worktree move" allowed this invariant to be violated, which
has been corrected.
* es/worktree-duplicate-paths:
worktree: make "move" refuse to move atop missing registered worktree
worktree: generalize candidate worktree path validation
worktree: prune linked worktree referencing main worktree path
worktree: prune duplicate entries referencing same worktree path
worktree: make high-level pruning re-usable
worktree: give "should be pruned?" function more meaningful name
worktree: factor out repeated string literal
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The interface to redact sensitive information in the trace output
has been simplified.
* jt/redact-all-cookies:
http: redact all cookies, teach GIT_TRACE_REDACT=0
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Further code clean-up.
* cc/upload-pack-data-2:
upload-pack: move pack_objects_hook to upload_pack_data
upload-pack: move allow_sideband_all to upload_pack_data
upload-pack: move allow_ref_in_want to upload_pack_data
upload-pack: move allow_filter to upload_pack_data
upload-pack: move keepalive to upload_pack_data
upload-pack: pass upload_pack_data to upload_pack_config()
upload-pack: change multi_ack to an enum
upload-pack: move multi_ack to upload_pack_data
upload-pack: move filter_capability_requested to upload_pack_data
upload-pack: move use_sideband to upload_pack_data
upload-pack: move static vars to upload_pack_data
upload-pack: annotate upload_pack_data fields
upload-pack: actually use some upload_pack_data bitfields
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The `diff-files' command and related commands which call the function
`cmd_diff_files()', consider the "intent-to-add" files as a part of the
index when comparing the work-tree against it. This was previously
addressed in commits [1] and [2] by turning the option
`--ita-invisible-in-index' (introduced in [3]) on by default.
For `diff-files' (and `add -p' as a consequence) to show the i-t-a
files as as new, `ita_invisible_in_index' will be enabled by default
here as well.
[1] 0231ae71d3 (diff: turn --ita-invisible-in-index on by default,
2018-05-26)
[2] 425a28e0a4 (diff-lib: allow ita entries treated as "not yet exist
in index", 2016-10-24)
[3] b42b451919 (diff: add --ita-[in]visible-in-index, 2016-10-24)
Signed-off-by: Srinidhi Kaushik <shrinidhi.kaushik@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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strbuf_write_fd was only used in bugreport.c. Since that file now uses
write_in_full, this method is no longer needed. In addition, strbuf_write_fd
did not guard against exceeding MAX_IO_SIZE for the platform, nor
provided error handling in the event of a failure if only partial data
was written to the file descriptor. Since already write_in_full has this
capability and is in general use, it should be used instead. The change
impacts strbuf.c and strbuf.h.
Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The strbuf_write_fd method did not provide checks for buffers larger
than MAX_IO_SIZE. Replacing with write_in_full ensures the entire
buffer will always be written to disk or report an error and die.
Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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cmd_pull() builds a commit_list to pass a single potential ancestor to
is_descendant_of(). The latter leaves the list intact. Release the
allocated memory after the call.
Leaking in cmd_*() isn't a big deal, but sets a bad example for other
users of is_descendant_of().
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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ref_newer() builds a commit_list to pass a single potential ancestor to
is_descendant_of(). The latter leaves the list intact. Release the
allocated memory after the call.
Signed-off-by: René Scharfe <l.s.r@web.de>
Acked-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Git branches have been qualified as topic branches, integration branches,
development branches, feature branches, release branches and so on.
Git has a branch that is the master *for* development, but it is not
the master *of* any "slave branch": Git does not have slave branches,
and has never had, except for a single testcase that claims otherwise. :)
Independent of any future change to the naming of the "master" branch,
removing this sole appearance of the term is a strict improvement: it
avoids divisive language, and talking about "feature branch" clarifies
which developer workflow the test is trying to emulate.
Reported-by: Till Maas <tmaas@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A comment in cmd_diff() states that if one tree-ish and no blobs are
provided, (the "N=1, M=0" case), it will provide a diff between the tree
and the cache. This is incorrect because a diff happens between the
tree-ish and the working tree. Remove the `--cached` in the comment so
that the correct behavior is shown. Add a new section describing the
"N=1, M=0, --cached" behavior.
Next, describe the "N=0, M=0, --cached" case, similar to the above since
it is undocumented.
Finally, fix some spacing issues. Add spaces between each section for
consistency and readability. Also, change tabs within the comment into
spaces.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Also let's update the DEF_VER in GIT-VERSION-GEN that presuably
is not looked at by anybody ;-)
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc updates.
* es/advertise-contribution-doc:
docs: mention MyFirstContribution in more places
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Document that we do not support Python 2.6 or older.
* dl/python-2.7-is-the-floor-version:
CodingGuidelines: specify Python 2.7 is the oldest version
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Doc updates.
* dl/t-readme-spell-git-correctly:
t/README: avoid poor-man's small caps GIT
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Leakfix.
* js/fuzz-commit-graph-leakfix:
fuzz-commit-graph: properly free graph struct
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Use of negative pathspec, while collecting paths including
untracked ones in the working tree, was broken.
* en/do-match-pathspec-fix:
dir: fix treatment of negated pathspecs
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Workaround breakage in MSVC build, where "curl-config --cflags"
gives settings appropriate for GCC build.
* js/msvc-build-fix:
msvc: fix "REG_STARTEND" issue
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The behaviour of "sparse-checkout" in the state "git clone
--no-checkout" left was changed accidentally in 2.27, which has
been corrected.
* en/sparse-checkout:
sparse-checkout: avoid staging deletions of all files
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The reflog entries for "git clone" and "git fetch" did not
anonymize the URL they operated on.
* js/reflog-anonymize-for-clone-and-fetch:
clone/fetch: anonymize URLs in the reflog
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Code cleanup.
* tb/t5318-cleanup:
t5318: test that '--stdin-commits' respects '--[no-]progress'
t5318: use 'test_must_be_empty'
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Reduce memory usage during "diff --quiet" in a worktree with too
many stat-unmatched paths.
* jk/diff-memuse-optim-with-stat-unmatch:
diff: discard blob data from stat-unmatched pairs
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The repo_is_descendant_of() method is aware of the existence of the
commit-graph file. It checks for generation_numbers_enabled() before
deciding on using can_all_from_reach() or repo_in_merge_bases()
depending on the situation. The reason here is that can_all_from_reach()
uses a depth-first search that is limited by the minimum generation
number of the target commits, and that algorithm can be very slow when
generation numbers are not present. The alternative uses
paint_down_to_common() which will walk the entire merge-base boundary,
which is typically slower.
This method is used by commands like "git tag --contains" and "git
branch --contains" for very fast results when a commit-graph file
exists. Unfortunately, it is _not_ used in commands like "git merge-base
--is-ancestor" which is doing an even simpler request.
This issue was raised recently [1] with respect to a change to how
generation numbers are stored, but was also reported much earlier [2]
before commit-reach.c existed to simplify these reachability queries.
[1] https://lore.kernel.org/git/20200607195347.GA8232@szeder.dev/
[2] https://lore.kernel.org/git/87608bawoa.fsf@evledraar.gmail.com/
The root cause is that builtin/merge-base.c has a method
handle_is_ancestor() that calls in_merge_bases(), an older version of
repo_in_merge_bases(). It would be better if we have every caller to
in_merge_bases() use the logic in can_all_from_reach() when possible.
This is where things get a little tricky: repo_is_descendant_of() calls
repo_in_merge_bases() in the non-generation numbers enabled case! If we
simply update repo_in_merge_bases() to call repo_is_descendant_of()
instead of repo_in_merge_bases_many(), then we will get a recursive call
loop. Thankfully, this is caught by the test suite in the default mode
(i.e. GIT_TEST_COMMIT_GRAPH=0).
The trick, then, is to make the non-generation number case for
repo_is_descendant_of() call repo_in_merge_bases_many() directly,
skipping the non-_many version. This allows us to take advantage of this
faster code path, when possible.
The easiest way to measure the performance impact is to test the
following command on the Linux kernel repository:
git merge-base --is-ancestor <A> <B>
| A | B | Time Before | Time After |
|------|------|-------------|------------|
| v3.0 | v5.7 | 0.459s | 0.028s |
| v4.0 | v5.7 | 0.267s | 0.021s |
| v5.0 | v5.7 | 0.074s | 0.013s |
Note that each of these samples return success. The old code performed
the same operation when <A> and <B> are swapped. However,
can_all_from_reach() will return immediately if the generation numbers
show that <A> has larger generation number than <B>. Thus, the time for
the swapped case is universally 0.004s in each case.
Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The next change will make repo_in_merge_bases() depend on the logic in
is_descendant_of(), but we need to make the method independent of
the_repository first.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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`git branch` accepts `--edit-description` in conjunction with other
arguments. However, `--edit-description` is its own mode, similar to
`--set-upstream-to`, which is also made mutually exclusive with other
modes. Prevent `--edit-description` from being mixed with other modes.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the "--set-upstream-to" and "--unset-upstream" tests, specific error
conditions are being tested. However, there is no way of ensuring that a
test case is failing because of some specific error.
Check stderr of failing commands to ensure that they are failing in the
expected way.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Clean up style of test by changing some filenames from "expected" to
"expect", which follows typical test convention.
Also, change a space-indent into a tab-indent.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 6b1db43109 ("clean: teach clean -d to preserve ignored paths",
2017-05-23) added the following code block (among others) to git-clean:
if (remove_directories)
dir.flags |= DIR_SHOW_IGNORED_TOO | DIR_KEEP_UNTRACKED_CONTENTS;
The reason for these flags is well documented in the commit message, but
isn't obvious just from looking at the code. Add some explanations to
the code to make it clearer.
Further, it appears git-2.26 did not correctly handle this combination
of flags from git-clean. With both these flags and without
DIR_SHOW_IGNORED_TOO_MODE_MATCHING set, git is supposed to recurse into
all untracked AND ignored directories. git-2.26.0 clearly was not doing
that. I don't know the full reasons for that or whether git < 2.27.0
had additional unknown bugs because of that misbehavior, because I don't
feel it's worth digging into. As per the huge changes and craziness
documented in commit 8d92fb2927 ("dir: replace exponential algorithm
with a linear one", 2020-04-01), the old algorithm was a mess and was
thrown out. What I can say is that git-2.27.0 correctly recurses into
untracked AND ignored directories with that combination.
However, in clean's case we don't need to recurse into ignored
directories; that is just a waste of time. Thus, when git-2.27.0
started correctly handling those flags, we got a performance regression
report. Rather than relying on other bugs in fill_directory()'s former
logic to provide the behavior of skipping ignored directories, make use
of the DIR_SHOW_IGNORED_TOO_MODE_MATCHING value specifically added in
commit eec0f7f2b7 ("status: add option to show ignored files
differently", 2017-10-30) for this purpose.
Reported-by: Brian Malehorn <bmalehorn@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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I spent a long time trying to figure out how and whether the code worked
with different values of ignore, ignore_only, and remove_directories.
After lots of time setting up lots of testcases, sifting through lots of
print statements, and walking through the debugger, I finally realized
that one piece of code related to how it was all setup was found in
clean.c rather than dir.c. Make a change that would have made it easier
for me to do the extra testing by putting this handling in one spot.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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René Scharfe
Junio C Hamano
Denton Liu
Srinidhi Kaushik
Randall S. Becker
Paolo Bonzini
Derrick Stolee
Ramsay Jones
Elijah Newren