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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git push $there --delete ''" should have been diagnosed as an
error, but instead turned into a matching push, which has been
corrected.
* jc/push-delete-nothing:
push: do not turn --delete '' into a matching push
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Mergetools update.
* sh/mergetools-vimdiff1:
mergetools/vimdiff: add vimdiff1 merge tool variant
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A handful of multi-word configuration variable names in
documentation that are spelled in all lowercase have been corrected
to use the more canonical camelCase.
* dl/doc-config-camelcase:
index-format doc: camelCase core.excludesFile
blame-options.txt: camelcase blame.blankBoundary
i18n.txt: camel case and monospace "i18n.commitEncoding"
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Messages update.
* js/params-vs-args:
replace "parameters" by "arguments" in error messages
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Doc update.
* ug/doc-commit-approxidate:
doc: mention approxidates for git-commit --date
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The "git maintenance register" command had trouble registering bare
repositories, which had been corrected.
* es/maintenance-of-bare-repositories:
maintenance: fix incorrect `maintenance.repo` path with bare repository
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Various fixes on "git add --chmod".
* mt/add-chmod-fixes:
add: propagate --chmod errors to exit status
add: mark --chmod error string for translation
add --chmod: don't update index when --dry-run is used
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The code to implement "git merge-base --independent" was poorly
done and was kept from the very beginning of the feature.
* ds/merge-base-independent:
commit-reach: stale commits may prune generation further
commit-reach: use heuristic in remove_redundant()
commit-reach: move compare_commits_by_gen
commit-reach: use one walk in remove_redundant()
commit-reach: reduce requirements for remove_redundant()
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"git rebase --[no-]fork-point" gained a configuration variable
rebase.forkPoint so that users do not have to keep specifying a
non-default setting.
* ah/rebase-no-fork-point-config:
rebase: add a config option for --no-fork-point
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"git grep" has been tweaked to be limited to the sparse checkout
paths.
* mt/grep-sparse-checkout:
grep: honor sparse-checkout on working tree searches
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Plug a minor memory leak.
* ah/commit-graph-leakplug:
commit-graph: avoid leaking topo_levels slab in write_commit_graph()
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"git difftool" learned "--skip-to=<path>" option to restart an
interrupted session from an arbitrary path.
* zh/difftool-skip-to:
difftool.c: learn a new way start at specified file
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Doc update.
* cw/pack-config-doc:
doc: mention bigFileThreshold for packing
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Doc update.
* jc/maint-column-doc-typofix:
Documentation: typofix --column description
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Docfix.
* ma/doc-markup-fix:
gitmailmap.txt: fix rendering of e-mail addresses
git.txt: fix monospace rendering
rev-list-options.txt: fix rendering of bonus paragraph
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"git {diff,log} --{skip,rotate}-to=<path>" allows the user to
discard diff output for early paths or move them to the end of the
output.
* jc/diffcore-rotate:
diff: --{rotate,skip}-to=<path>
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The error codepath around the "--temp/--prefix" feature of "git
checkout-index" has been improved.
* mt/checkout-index-corner-cases:
checkout-index: omit entries with no tempname from --temp output
write_entry(): fix misuses of `path` in error messages
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Docfix.
* js/doc-proto-v2-response-end:
doc: fix naming of response-end-pkt
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Optimization in "git blame"
* rs/blame-optim:
blame: remove unnecessary use of get_commit_info()
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Objects that lost references can be pruned away, even when they
have notes attached to it (and these notes will become dangling,
which in turn can be pruned with "git notes prune"). This has been
clarified in the documentation.
* mz/doc-notes-are-not-anchors:
docs: clarify that refs/notes/ do not keep the attached objects alive
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Removal of GIT_TEST_GETTEXT_POISON continues.
* ab/detox-gettext-tests:
tests: remove most uses of test_i18ncmp
tests: remove last uses of C_LOCALE_OUTPUT
tests: remove most uses of C_LOCALE_OUTPUT
tests: remove last uses of GIT_TEST_GETTEXT_POISON=false
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"git rev-list" command learned "--disk-usage" option.
* jk/rev-list-disk-usage:
docs/rev-list: add some examples of --disk-usage
docs/rev-list: add an examples section
rev-list: add --disk-usage option for calculating disk usage
t: add --no-tag option to test_commit
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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All other references to blame.* configuration variables are
camelCased already. Update this one to match.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 95791be750 (doc: camelCase the i18n config variables to improve
readability, 2017-07-17), the other i18n config variables were
camel cased. However, this one instance was missed.
Camel case and monospace "i18n.commitEncoding" so that it matches the
surrounding text.
Signed-off-by: Denton Liu <liu.denton@gmail.com>
[jc: fixed 3 other mistakes that are exactly the same]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If `add` encounters an error while applying the --chmod changes, it
prints a message to stderr, but exits with a success code. This might
have been an oversight, as the command does exit with a non-zero code in
other situations where it cannot (or refuses to) update all of the
requested paths (e.g. when some of the given paths are ignored). So make
the exit behavior more consistent by also propagating --chmod errors to
the exit status.
Note: the test "all statuses changed in folder if . is given" uses paths
added by previous test cases, some of which might be symbolic links.
Because `git add --chmod` will now fail with such paths, this test would
depend on whether all the previous tests were executed, or only some
of them. Avoid that by running the test on a fresh repo with only
regular files.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This error message is intended for humans, so mark it for translation.
Also use error() instead of fprintf(stderr, ...), to make the
corresponding line a bit cleaner, and to display the "error:" prefix,
which helps classifying the nature/severity of the message.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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`git add --chmod` applies the mode changes even when `--dry-run` is
used. Fix that and add some tests for this option combination.
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Some users (myself included) would prefer to have this feature off by
default because it can silently drop commits.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we added a syntax sugar "git push remote --delete <ref>" to
"git push" as a synonym to the canonical "git push remote :<ref>"
syntax at f517f1f2 (builtin-push: add --delete as syntactic sugar
for :foo, 2009-12-30), we weren't careful enough to make sure that
<ref> is not empty.
Blindly rewriting "--delete <ref>" to ":<ref>" means that an empty
string <ref> results in refspec ":", which is the syntax to ask for
"matching" push that does not delete anything.
Worse yet, if there were matching refs that can be fast-forwarded,
they would have been published prematurely, even if the user feels
that they are not ready yet to be pushed out, which would be a real
disaster.
Noticed-by: Tilman Vogel <tilman.vogel@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We describe the more strict date formats accepted by GIT_COMMITTER_DATE,
etc, but the --date option also allows the looser approxidate formats,
as well. Unfortunately we don't have a good or complete reference for
this format, but let's at least mention that it _is_ looser, and give a
few examples.
If we ever write separate, more complete date-format documentation, we
should refer to it from here.
Based-on-a-patch-by: Utku Gultopu <ugultopu@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When an error message informs the user about an incorrect command
invocation, it should refer to "arguments", not "parameters".
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This adds yet another vimdiff/gvimdiff variant and presents conflicts as
a two-way diff between 'LOCAL' and 'REMOTE'. 'MERGED' is not opened
which deviates from the norm so usage text is echoed as a Vim message on
startup that instructs the user with how to proceed and how to abort.
Vimdiff is well-suited to two-way diffs so this is an option for a more
simple, more streamlined conflict resolution. For example: it is
difficult to communicate differences across more than two files using
only syntax highlighting; default vimdiff commands to get and put
changes between buffers do not need the user to manually specify
a source or destination buffer when only using two buffers.
Like other merge tools that directly compare 'LOCAL' with 'REMOTE', this
tool will benefit when paired with the new `mergetool.hideResolved`
setting.
Signed-off-by: Seth House <seth@eseth.com>
Tested-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The periodic maintenance tasks configured by `git maintenance start`
invoke `git for-each-repo` to run `git maintenance run` on each path
specified by the multi-value global configuration variable
`maintenance.repo`. Because `git for-each-repo` will likely be run
outside of the repositories which require periodic maintenance, it is
mandatory that the repository paths specified by `maintenance.repo` are
absolute.
Unfortunately, however, `git maintenance register` does nothing to
ensure that the paths it assigns to `maintenance.repo` are indeed
absolute, and may in fact -- especially in the case of a bare repository
-- assign a relative path to `maintenance.repo` instead. Fix this
problem by converting all paths to absolute before assigning them to
`maintenance.repo`.
While at it, also fix `git maintenance unregister` to convert paths to
absolute, as well, in order to ensure that it can correctly remove from
`maintenance.repo` a path assigned via `git maintenance register`.
Reported-by: Clement Moyroud <clement.moyroud@gmail.com>
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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Test framework clean-up.
* ab/test-lib:
test-lib-functions: assert correct parameter count
test-lib-functions: remove bug-inducing "diagnostics" helper param
test libs: rename "diff-lib" to "lib-diff"
t/.gitattributes: sort lines
test-lib-functions: move function to lib-bitmap.sh
test libs: rename gitweb-lib.sh to lib-gitweb.sh
test libs: rename bundle helper to "lib-bundle.sh"
test-lib-functions: remove generate_zero_bytes() wrapper
test-lib-functions: move test_set_index_version() to its user
test lib: change "error" to "BUG" as appropriate
test-lib: remove check_var_migration
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A small memleak in "diff -I<regexp>" has been corrected.
* ab/diff-deferred-free:
diff: plug memory leak from regcomp() on {log,diff} -I
diff: add an API for deferred freeing
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When a pager spawned by us exited, the trace log did not record its
exit status correctly, which has been corrected.
* ab/pager-exit-log:
pager: properly log pager exit code when signalled
run-command: add braces for "if" block in wait_or_whine()
pager: test for exit code with and without SIGPIPE
pager: refactor wait_for_pager() function
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Update formatting and grammar of the hash transition plan
documentation, plus some updates.
* ta/hash-function-transition-doc:
doc: use https links
doc hash-function-transition: move rationale upwards
doc hash-function-transition: fix incomplete sentence
doc hash-function-transition: use upper case consistently
doc hash-function-transition: use SHA-1 and SHA-256 consistently
doc hash-function-transition: fix asciidoc output
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Signed commits and tags now allow verification of objects, whose
two object names (one in SHA-1, the other in SHA-256) are both
signed.
* bc/signed-objects-with-both-hashes:
gpg-interface: remove other signature headers before verifying
ref-filter: hoist signature parsing
commit: allow parsing arbitrary buffers with headers
gpg-interface: improve interface for parsing tags
commit: ignore additional signatures when parsing signed commits
ref-filter: switch some uses of unsigned long to size_t
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Documentation, code and test clean-up around "git stash".
* dl/stash-cleanup:
stash: declare ref_stash as an array
t3905: use test_cmp() to check file contents
t3905: replace test -s with test_file_not_empty
t3905: remove nested git in command substitution
t3905: move all commands into test cases
t3905: remove spaces after redirect operators
git-stash.txt: be explicit about subcommand options
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write_commit_graph initialises topo_levels using init_topo_level_slab(),
next it calls compute_topological_levels() which can cause the slab to
grow, we therefore need to clear the slab again using
clear_topo_level_slab() when we're done.
First introduced in 72a2bfca (commit-graph: add a slab to store
topological levels, 2021-01-16).
LeakSanitizer output:
==1026==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 8 byte(s) in 1 object(s) allocated from:
#0 0x498ae9 in realloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:164:3
#1 0xafbed8 in xrealloc /src/git/wrapper.c:126:8
#2 0x7966d1 in topo_level_slab_at_peek /src/git/commit-graph.c:71:1
#3 0x7965e0 in topo_level_slab_at /src/git/commit-graph.c:71:1
#4 0x78fbf5 in compute_topological_levels /src/git/commit-graph.c:1472:12
#5 0x78c5c3 in write_commit_graph /src/git/commit-graph.c:2456:2
#6 0x535c5f in graph_write /src/git/builtin/commit-graph.c:299:6
#7 0x5350ca in cmd_commit_graph /src/git/builtin/commit-graph.c:337:11
#8 0x4cddb1 in run_builtin /src/git/git.c:453:11
#9 0x4cabe2 in handle_builtin /src/git/git.c:704:3
#10 0x4cd084 in run_argv /src/git/git.c:771:4
#11 0x4ca424 in cmd_main /src/git/git.c:902:19
#12 0x707fb6 in main /src/git/common-main.c:52:11
#13 0x7fee4249383f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
Indirect leak of 524256 byte(s) in 1 object(s) allocated from:
#0 0x498942 in calloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:154:3
#1 0xafc088 in xcalloc /src/git/wrapper.c:140:8
#2 0x796870 in topo_level_slab_at_peek /src/git/commit-graph.c:71:1
#3 0x7965e0 in topo_level_slab_at /src/git/commit-graph.c:71:1
#4 0x78fbf5 in compute_topological_levels /src/git/commit-graph.c:1472:12
#5 0x78c5c3 in write_commit_graph /src/git/commit-graph.c:2456:2
#6 0x535c5f in graph_write /src/git/builtin/commit-graph.c:299:6
#7 0x5350ca in cmd_commit_graph /src/git/builtin/commit-graph.c:337:11
#8 0x4cddb1 in run_builtin /src/git/git.c:453:11
#9 0x4cabe2 in handle_builtin /src/git/git.c:704:3
#10 0x4cd084 in run_argv /src/git/git.c:771:4
#11 0x4ca424 in cmd_main /src/git/git.c:902:19
#12 0x707fb6 in main /src/git/common-main.c:52:11
#13 0x7fee4249383f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
SUMMARY: AddressSanitizer: 524264 byte(s) leaked in 2 allocation(s).
Signed-off-by: Andrzej Hunt <ajrhunt@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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`git difftool` only allow us to select file to view in turn.
If there is a commit with many files and we exit in the middle,
we will have to traverse list again to get the file diff which
we want to see. Therefore,teach the command an option
`--skip-to=<path>` to allow the user to say that diffs for earlier
paths are not interesting (because they were already seen in an
earlier session) and start this session with the named path.
Signed-off-by: ZheNing Hu <adlternative@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The remove_redundant_with_gen() algorithm performs a depth-first-search
to find commits in the 'array' list, starting at the parents of each
commit in 'array'. The result is that commits in 'array' are marked
STALE when they are reachable from another commit in 'array'.
This depth-first-search is fast when commits lie on or near the
first-parent history of the higher commits. The search terminates early
if all but one commit becomes marked STALE.
However, it is possible that there are two independent commits with high
generation number. In that case, the depth-first-search might languish
by searching in lower generations due to the fixed min_generation used
throughout the method.
With the expectation that commits with lower generation are expected to
become STALE more often, we can optimize further by increasing that
min_generation boundary upon discovery of the commit with minimum
generation.
We must first sort the commits in 'array' by generation. We cannot sort
'array' itself since it must preserve relative order among the returned
results (see revision.c:mark_redundant_parents() for an example).
This simplifies the initialization of min_generation, but it also allows
us to increase the new min_generation when we find the commit with
smallest generation remaining.
This requires more than two commits in order to test, so I used the
Linux kernel repository with a few commits that are slightly off of the
first-parent history. I timed the following command:
git merge-base --independent 2ecedd756908 d2360a398f0b \
1253935ad801 160bab43419e 0e2209629fec 1d0e16ac1a9e
The first two commits have similar generation and are near the v5.10
tag. Commit 160bab43419e is off of the first-parent history behind v5.5,
while the others are scattered somewhere reachable from v5.9. This is
designed to demonstrate the optimization, as that commit within v5.5
would normally cause a lot of extra commit walking.
Since remove_redundant_with_alg() is called only when at least one of
the input commits has a finite generation number, this algorithm is
tested with a commit-graph generated starting at a number of different
tags, the earliest being v5.5.
commit-graph at v5.5:
| Method | Time |
|-----------------------+-------|
| *_no_gen() | 864ms |
| *_with_gen() (before) | 858ms |
| *_with_gen() (after) | 810ms |
commit-graph at v5.7:
| Method | Time |
|-----------------------+-------|
| *_no_gen() | 625ms |
| *_with_gen() (before) | 572ms |
| *_with_gen() (after) | 517ms |
commit-graph at v5.9:
| Method | Time |
|-----------------------+-------|
| *_no_gen() | 268ms |
| *_with_gen() (before) | 224ms |
| *_with_gen() (after) | 202ms |
commit-graph at v5.10:
| Method | Time |
|-----------------------+-------|
| *_no_gen() | 72ms |
| *_with_gen() (before) | 37ms |
| *_with_gen() (after) | 9ms |
Note that these are only modest improvements for the case where the two
independent commits are not in the commit-graph (not until v5.10). All
algorithms get faster as more commits are indexed, which is not a
surprise. However, the cost of walking extra commits is more and more
prevalent in relative terms as more commits are indexed. Finally, the
last case allows us to jump to the minimum generation between the last
two commits (that are actually independent) so we greatly reduce the
cost in that case.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Reachability algorithms in commit-reach.c frequently benefit from using
the first-parent history as a heuristic for satisfying reachability
queries. The most obvious example was implemented in 4fbcca4e
(commit-reach: make can_all_from_reach... linear, 2018-07-20).
Update the walk in remove_redundant() to use this same heuristic. Here,
we are walking starting at the parents of the input commits. Sort those
parents and walk from the highest generation to lower. Each time, use
the heuristic of searching the first parent history before continuing to
expand the walk.
The order in which we explore the commits matters, so update
compare_commits_by_gen to break generation number ties with commit date.
This has no effect when the commits are in a commit-graph file with
corrected commit dates computed, but it will assist when the commits are
in the region "above" the commit-graph with "infinite" generation
number. Note that we cannot shift to use
compare_commits_by_gen_then_commit_date as the method prototype is
different. We use compare_commits_by_gen for QSORT() as opposed to as a
priority function.
The important piece is to ensure we short-circuit the walk when we find
that there is a single non-redundant commit. This happens frequently
when looking for merge-bases or comparing several tags with 'git
merge-base --independent'. Use a new count 'count_still_independent' and
if that hits 1 we can stop walking.
To update 'count_still_independent' properly, we add use of the RESULT
flag on the input commits. Then we can detect when we reach one of these
commits and decrease the count. We need to remove the RESULT flag at
that moment because we might re-visit that commit when popping the
stack.
We use the STALE flag to mark parents that have been added to the new
walk_start list, but we need to clear that flag before we start walking
so those flags don't halt our depth-first-search walk.
On my copy of the Linux kernel repository, the performance of 'git
merge-base --independent <all-tags>' goes from 1.1 seconds to 0.11
seconds.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move this earlier in the file so it can be used by more methods.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The current implementation of remove_redundant() uses several calls to
paint_down_to_common() to determine that commits are independent of each
other. This leads to quadratic behavior when many inputs are passed to
commands such as 'git merge-base'.
For example, in the Linux kernel repository, I tested the performance
by passing all tags:
git merge-base --independent $(git for-each-ref refs/tags --format="$(refname)")
(Note: I had to delete the tags v2.6.11-tree and v2.6.11 as they do
not point to commits.)
Here is the performance improvement introduced by this change:
Before: 16.4s
After: 1.1s
This performance improvement requires the commit-graph file to be
present. We keep the old algorithm around as remove_redundant_no_gen()
and use it when generation_numbers_enabled() is false. This is similar
to other algorithms within commit-reach.c. The new algorithm is
implemented in remove_redundant_with_gen().
The basic approach is to do one commit walk instead of many. First, scan
all commits in the list and mark their _parents_ with the STALE flag.
This flag will indicate commits that are reachable from one of the
inputs, except not including themselves. Then, walk commits until
covering all commits up to the minimum generation number pushing the
STALE flag throughout.
At the end, we need to clear the STALE bit from all of the commits
we walked. We move the non-stale commits in 'array' to the beginning of
the list, and this might overwrite stale commits. However, we store an
array of commits that started the walk, and use clear_commit_marks() on
each of those starting commits. That method will walk the reachable
commits with the STALE bit and clear them all. This makes the algorithm
safe for re-entry or for other uses of those commits after this walk.
This logic is covered by tests in t6600-test-reach.sh, so the behavior
does not change. This is tested both in the case with a commit-graph and
without.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Knowing about the core.bigFileThreshold configuration variable is
helpful when examining pack file size differences between repositories.
Add a reference to it to the manpages a user is likely to read in this
situation.
Capitalize CONFIGURATION for consistency with other pages having such a
section.
Signed-off-by: Christian Walther <cwalther@gmx.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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f4ed0af6 (Merge branch 'nd/columns', 2012-05-03) brought in three
cut-and-pasted copies of malformatted descriptions. Let's fix them
all the same way by marking the configuration variable names up as
monospace just like the command line option `--column` is typeset.
While we are at it, correct a missing space after the full stop that
ends the sentence.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
Denton Liu
Matheus Tavares
Alex Henrie
Jeff King
Johannes Sixt
Seth House
Eric Sunshine
Andrzej Hunt
ZheNing Hu
Derrick Stolee
Christian Walther