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Now that we have two types (a decoration type and an object type) in the
function, let's give them both unique names to avoid accidentally using
one instead of the other.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we load the ref decorations, we parse the object pointed to by each
ref in order to get a "struct object". This is unnecessarily expensive;
we really only need the object struct, and don't even look at the parsed
contents. The exception is tags, which we do need to peel.
We can improve this by looking up the object type first (which is much
cheaper), and skipping the parse entirely for non-tags. This increases
the work slightly for annotated tags (which now do a type lookup _and_ a
parse), but decreases it a lot for other types. On balance, this seems
to be a good tradeoff.
In my git.git clone, with ~2k refs, most of which are branches, the time
to run "git log -1 --decorate" drops from 34ms to 11ms. Even on my
linux.git clone, which contains mostly tags and only a handful of
branches, the time drops from 30ms to 19ms. And on a more extreme
real-world case with ~220k refs, mostly non-tags, the time drops from
2.6s to 650ms.
That command is a lop-sided example, of course, because it does as
little non-loading work as possible. But it does show the absolute time
improvement. Even in something like a full "git log --decorate" on that
extreme repo, we'd still be saving 2s of CPU time.
Ideally we could push this even further, and avoid parsing even tags, by
relying on the packed-refs "peel" optimization (which we could do by
calling peel_iterated_oid() instead of peeling manually). But we can't
do that here. The packed-refs file only stores the bottom-layer of the
peel (so in a "tag->tag->commit" chain, it stores only the commit as the
peel result). But the decoration code wants to peel the layers
individually, annotating the middle layers of the chain.
If the packed-refs file ever learns to store all of the peeled layers,
then we could switch to it. Or even if it stored a flag to indicate the
peel was not multi-layer (because most of them aren't), then we could
use it most of the time and fall back to a manual peel for the rare
cases.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In some cases it's useful for efficiency reasons to get the type of an
object before deciding whether to parse it, but we still want an object
struct. E.g., in reachable.c, bitmaps give us the type, but we just want
to mark flags on each object. Likewise, we may loop over every object
and only parse tags in order to peel them; checking the type first lets
us avoid parsing the non-tags.
But our lookup_blob(), etc, functions make getting an object struct
annoying: we have to call the right function for every type. And we
cannot just use the generic lookup_object(), because it only returns an
already-seen object; it won't allocate a new object struct.
Let's provide a function that dispatches to the correct lookup_*
function based on a run-time type. In fact, reachable.c already has such
a helper, so we'll just make that public.
I did change the return type from "void *" to "struct object *". While
the former is a clever way to avoid casting inside the function, it's
less safe and less informative to people reading the function
declaration.
The next commit will add a new caller.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The lookup_unknown_object() system is not often used and is somewhat
confusing. Let's try to explain it a bit more (which is especially
important as I'm adding a related but slightly different function in the
next commit).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If no --decorate option is given, we default to auto-decoration. And
when that kicks in, cmd_log_init_finish() will unconditionally load the
decoration refs.
However, if we are using a user-format that does not include "%d" or
"%D", we won't show the decorations at all, so we don't need to load
them. We can detect this case and auto-disable them by adding a new
field to our userformat_want helper. We can do this even when the user
explicitly asked for --decorate, because it can't affect the output at
all.
This patch consistently reduces the time to run "git log -1 --format=%H"
on my git.git clone (with ~2k refs) from 34ms to 7ms. On a much more
extreme real-world repository (with ~220k refs), it goes from 2.5s to
4ms.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The comment only mentions "notes", but there are more fields now (and
I'm about to add another). Let's make it more general, and stick the
struct next to the function to make the list of possibilities obvious.
While we're touching this comment, let's also mention the behavior of
NULL, which some callers rely on (though in the long run, this global is
pretty nasty and probably should get moved into rev_info).
Signed-off-by: Jeff King <peff@peff.net>
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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Preparatory build procedure clean-up for documentation.
* fc/doc-build-cleanup:
doc: avoid using rm directly
doc: simplify Makefile using .DELETE_ON_ERROR
doc: remove unnecessary rm instances
doc: improve asciidoc dependencies
doc: refactor common asciidoc dependencies
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Test clean-up.
* ab/test-lib-updates:
test-lib: split up and deprecate test_create_repo()
test-lib: do not show advice about init.defaultBranch under --verbose
test-lib: reformat argument list in test_create_repo()
submodule tests: use symbolic-ref --short to discover branch name
test-lib functions: add --printf option to test_commit
describe tests: convert setup to use test_commit
test-lib functions: add an --annotated option to "test_commit"
test-lib-functions: document test_commit --no-tag
test-lib-functions: reword "test_commit --append" docs
test-lib tests: remove dead GIT_TEST_FRAMEWORK_SELFTEST variable
test-lib: bring $remove_trash out of retirement
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Test portability fix.
* dd/honor-users-tar-in-tests:
t: use configured TAR instead of tar
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Message update.
* ps/rev-list-object-type-filter:
help: fix small typo in error message
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Workaround compiler warnings.
* ab/trace2-squelch-gcc-warning:
trace2: refactor to avoid gcc warning under -O3
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The "-m" option in "git log -m" that does not specify which format,
if any, of diff is desired did not have any visible effect; it now
implies some form of diff (by default "--patch") is produced.
* so/log-m-implies-p:
diff-merges: let "-m" imply "-p"
diff-merges: rename "combined_imply_patch" to "merges_imply_patch"
stash list: stop passing "-m" to "git log"
git-svn: stop passing "-m" to "git rev-list"
diff-merges: move specific diff-index "-m" handling to diff-index
t4013: test "git diff-index -m"
t4013: test "git diff-tree -m"
t4013: test "git log -m --stat"
t4013: test "git log -m --raw"
t4013: test that "-m" alone has no effect in "git log"
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Optimize out repeated rename detection in a sequence of mergy
operations.
* en/ort-perf-batch-11:
merge-ort, diffcore-rename: employ cached renames when possible
merge-ort: handle interactions of caching and rename/rename(1to1) cases
merge-ort: add helper functions for using cached renames
merge-ort: preserve cached renames for the appropriate side
merge-ort: avoid accidental API mis-use
merge-ort: add code to check for whether cached renames can be reused
merge-ort: populate caches of rename detection results
merge-ort: add data structures for in-memory caching of rename detection
t6429: testcases for remembering renames
fast-rebase: write conflict state to working tree, index, and HEAD
fast-rebase: change assert() to BUG()
Documentation/technical: describe remembering renames optimization
t6423: rename file within directory that other side renamed
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"git fetch" over protocol v2 left its side of the socket open after
it finished speaking, which unnecessarily wasted the resource on
the other side.
* jk/fetch-pack-v2-half-close-early:
fetch-pack: signal v2 server that we are done making requests
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Use the hashfile API in the codepath that writes the index file to
reduce code duplication.
* ds/write-index-with-hashfile-api:
read-cache: delete unused hashing methods
read-cache: use hashfile instead of git_hash_ctx
csum-file.h: increase hashfile buffer size
hashfile: use write_in_full()
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Recent "git clone" left a temporary directory behind when the
transport layer returned an failure.
* jk/clone-clean-upon-transport-error:
clone: clean up directory after transport_fetch_refs() failure
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"git send-email" learned the "--sendmail-cmd" command line option
and the "sendemail.sendmailCmd" configuration variable, which is a
more sensible approach than the current way of repurposing the
"smtp-server" that is meant to name the server to instead name the
command to talk to the server.
* ga/send-email-sendmail-cmd:
git-send-email: add option to specify sendmail command
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The code to handle the "--format" option in "for-each-ref" and
friends made too many string comparisons on %(atom)s used in the
format string, which has been corrected by converting them into
enum when the format string is parsed.
* zh/ref-filter-atom-type:
ref-filter: introduce enum atom_type
ref-filter: add objectsize to used_atom
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Message update.
* ah/setup-extensions-message-i18n-fix:
setup: split "extensions found" messages into singular and plural
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Message update.
* ah/fetch-reject-warning-grammofix:
fetch: improve grammar of "shallow roots" message
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The documentation for "color.pager" configuration variable has been
updated.
* jk/doc-color-pager:
doc: explain the use of color.pager
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Doc fix.
* tl/fix-packfile-uri-doc:
packfile-uri.txt: fix blobPackfileUri description
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The description of "fast-forward" in the glossary has been updated.
* ry/clarify-fast-forward-in-glossary:
docs: improve fast-forward in glossary content
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Quite a many die() messages in rev-parse haven't been marked for
translation.
* wm/rev-parse-die-i18n:
rev-parse: mark die() messages for translation
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Doc update.
* jc/clarify-revision-range:
revisions(7): clarify that most commands take a single revision range
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Doc update.
* ah/doc-describe:
describe-doc: clarify default length of abbreviation
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Message update.
* ah/submodule-helper-module-summary-parseopt:
submodule: use the imperative mood to describe the --files option
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i18n update.
* ah/stash-usage-i18n-fix:
stash: don't translate literal commands
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i18n update.
* ah/merge-usage-i18n-fix:
merge: don't translate literal commands
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Rewrite code that triggers undefined behaiour warning.
* jn/size-t-casted-to-off-t-fix:
xsize_t: avoid implementation defined behavior when len < 0
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The parallel checkout codepath did not initialize object ID field
used to talk to the worker processes in a futureproof way.
* mt/parallel-checkout-with-padded-oidcpy:
parallel-checkout: send the new object_id algo field to the workers
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We historically rejected a very short string as an author name
while accepting a patch e-mail, which has been loosened.
* ef/mailinfo-short-name:
mailinfo: don't discard names under 3 characters
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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l10n-2.32.0-rnd1.1
* tag 'l10n-2.32.0-rnd1.1' of git://github.com/git-l10n/git-po: (25 commits)
l10n: es: 2.32.0 round 1
l10n: zh_CN: for git v2.32.0 l10n round 1
l10n: Update Catalan translation
l10n: de.po: Update German translation for Git v2.32.0
l10n: README: note on fuzzy translations
l10n: README: document l10n conventions
l10n: README: document "core translation"
l10n: README: document git-po-helper
l10n: README: add file extention ".md"
l10n: pt_PT: add Portuguese translations part 3
l10n: bg.po: Updated Bulgarian translation (5204t)
l10n: id: po-id for 2.32.0 (round 1)
l10n: vi.po(5204t): Updated Vietnamese translation for v2.32.0
l10n: zh_TW.po: localized
l10n: zh_TW.po: v2.32.0 round 1 (11 untranslated)
l10n: sv.po: Update Swedish translation (5204t0f0u)
l10n: fix typos in po/TEAMS
l10n: fr: v2.32.0 round 1
l10n: tr: v2.32.0-r1
l10n: fr: fixed inconsistencies
...
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Test fix.
* rs/parallel-checkout-test-fix:
parallel-checkout: avoid dash local bug in tests
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Last minute portability fix.
* jc/fsync-can-fail-with-eintr:
fsync(): be prepared to see EINTR
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Dash bug https://bugs.launchpad.net/ubuntu/+source/dash/+bug/139097
lets the shell erroneously perform field splitting on the expansion of a
command substitution during declaration of a local variable. It causes
the parallel-checkout tests to fail e.g. when running them with
/bin/dash on MacOS 11.4, where they error out like this:
./t2080-parallel-checkout-basics.sh: 33: local: 0: bad variable name
That's because the output of wc -l contains leading spaces and the
returned number of lines is treated as another variable to declare, i.e.
as in "local workers= 0".
Work around it by enclosing the command substitution in quotes.
Helped-by: Matheus Tavares Bernardino <matheus.bernardino@usp.br>
Helped-by: SZEDER Gábor <szeder.dev@gmail.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@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: Christopher Diaz Riveros <christopher.diaz.riv@gmail.com>
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Translate 126 new messages (5204t0f0u) for git 2.32.0.
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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* 'fix_typo' of github.com:e-yes/git:
l10n: ru.po: fix typo in Russian translation
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Some platforms, like NonStop do not automatically restart fsync()
when interrupted by a signal, even when that signal is setup with
SA_RESTART.
This can lead to test breakage, e.g., where "--progress" is used,
thus SIGALRM is sent often, and can interrupt an fsync() syscall.
Make sure we deal with such a case by retrying the syscall
ourselves. Luckily, we call fsync() fron a single wrapper,
fsync_or_die(), so the fix is fairly isolated.
Reported-by: Randall S. Becker <randall.becker@nexbridge.ca>
Helped-by: Jeff King <peff@peff.net>
Helped-by: Taylor Blau <me@ttaylorr.com>
[jc: the above two did most of the work---I just tied the loose end]
Helped-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* 'pt-PT' of github.com:git-l10n-pt-PT/git-po:
l10n: pt_PT: add Portuguese translations part 3
l10n: pt_PT: add Portuguese translations part 2
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Signed-off-by: Jordi Mas <jmas@softcatala.org>
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Reviewed-by: Ralf Thielow <ralf.thielow@gmail.com>
Signed-off-by: Matthias Rüster <matthias.ruester@gmail.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A recent change to make git-completion.bash use $__git_cmd_idx
in more places broke a number of completions on zsh because it
modified __git_main but did not update __git_zsh_main.
Notably, completions for "add", "branch", "mv" and "push" were
broken as a result of this change.
In addition to the undefined variable usage, "git mv <tab>" also
prints the following error:
__git_count_arguments:7: bad math expression:
operand expected at `"1"'
_git_mv:[:7: unknown condition: -gt
Remove the quotes around $__git_cmd_idx in __git_count_arguments
and set __git_cmd_idx=1 early in __git_zsh_main to fix the
regressions from 59d85a2a05.
This was tested on zsh 5.7.1 (x86_64-apple-darwin19.0).
Suggested-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: David Aguilar <davvid@gmail.com>
Acked-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fuzzy translation problem can occur when updating translations.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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Document the conventions that l10n contributors must follow.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
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