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The code to fsck objects received across multiple packs during a
single git fetch session has been broken when the packfile URI
feature was in use. A workaround has been added by disabling the
codepath to avoid keeping a packfile that is too small.
* jt/transfer-fsck-across-packs-fix:
fetch-pack: do not mix --pack_header and packfile uri
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When fetching (as opposed to cloning) from a repository with packfile
URIs enabled, an error like this may occur:
fatal: pack has bad object at offset 12: unknown object type 5
fatal: finish_http_pack_request gave result -1
fatal: fetch-pack: expected keep then TAB at start of http-fetch output
This bug was introduced in b664e9ffa1 ("fetch-pack: with packfile URIs,
use index-pack arg", 2021-02-22), when the index-pack args used when
processing the inline packfile of a fetch response and when processing
packfile URIs were unified.
This bug happens because fetch, by default, partially reads (and
consumes) the header of the inline packfile to determine if it should
store the downloaded objects as a packfile or loose objects, and thus
passes --pack_header=<...> to index-pack to inform it that some bytes
are missing. However, when it subsequently fetches the additional
packfiles linked by URIs, it reuses the same index-pack arguments, thus
wrongly passing --index-pack-arg=--pack_header=<...> when no bytes are
missing.
This does not happen when cloning because "git clone" always passes
do_keep, which instructs the fetch mechanism to always retain the
packfile, eliminating the need to read the header.
There are a few ways to fix this, including filtering out pack_header
arguments when downloading the additional packfiles, but I decided to
stick to always using index-pack throughout when packfile URIs are
present - thus, Git no longer needs to read the bytes, and no longer
needs --pack_header here.
Signed-off-by: Jonathan Tan <jonathantanmy@google.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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There were some early changes in the 2.31 cycle to optimize some setup
in diffcore-rename.c[1], some later changes to measure performance[2],
and finally some significant changes to improve rename detection
performance. The final one was merged with the note
Performance optimization work on the rename detection continues.
That works for the commit log, but feels misleading as a release note
since all the changes were within one cycle. Simplify this to just
Performance improvements for rename detection.
The former wording could be seen as hinting that more performance
improvements will come in 2.32, which is true, but we can just cover
those in the 2.32 release notes when the time comes.
[1] a5ac31b5b1 (Merge branch 'en/diffcore-rename', 2021-01-25)
[2] d3a035b055 (Merge branch 'en/merge-ort-perf', 2021-02-11)
[3] 12bd17521c (Merge branch 'en/diffcore-rename', 2021-03-01)
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Work around platforms whose open() is reported to return EINTR (it
shouldn't, as we do our signals with SA_RESTART).
* jk/open-returns-eintr:
config.mak.uname: enable OPEN_RETURNS_EINTR for macOS Big Sur
Makefile: add OPEN_RETURNS_EINTR knob
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* https://github.com/prati0100/git-gui:
Revert "git-gui: remove lines starting with the comment character"
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This commit causes breakage on macOS, or in fact any platform using
older versions of Tcl. Revert it.
* py/revert-commit-comments:
Revert "git-gui: remove lines starting with the comment character"
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This reverts commit b9a43869c9f96d3577d6f568c1bda1940c8f0e31.
This commit causes breakage on macOS (10.13). It causes errors on
startup and completely breaks the commit functionality. There are two
main problems. First, it uses `string cat` which is not supported on
older Tcl versions. Second, it does a half close of the bidirectional
pipe to git-stripspace which is also not supported on older Tcl
versions.
Reported-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
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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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An under-allocation for the untracked cache data has been corrected.
* jh/untracked-cache-fix:
dir: fix malloc of root untracked_cache_dir
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Raise the buffer size used when writing the index file out from
(obviously too small) 8kB to (clearly sufficiently large) 128kB.
* ns/raise-write-index-buffer-size:
read-cache: make the index write buffer size 128K
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The logic to handle "trailer" related placeholders in the
"--format=" mechanisms in the "log" family and "for-each-ref"
family is getting unified.
* hv/trailer-formatting:
ref-filter: use pretty.c logic for trailers
pretty.c: capture invalid trailer argument
pretty.c: refactor trailer logic to `format_set_trailers_options()`
t6300: use function to test trailer options
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Documentation update.
* hn/reftable-tables-doc-update:
doc/reftable: document how to handle windows
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Test script modernization.
* sv/t7001-modernize:
t7001: use `test` rather than `[`
t7001: use here-docs instead of echo
t7001: put each command on a separate line
t7001: use '>' rather than 'touch'
t7001: avoid using `cd` outside of subshells
t7001: remove whitespace after redirect operators
t7001: modernize subshell formatting
t7001: remove unnecessary blank lines
t7001: indent with TABs instead of spaces
t7001: modernize test formatting
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The approach to "fsck" the incoming objects in "index-pack" is
attractive for performance reasons (we have them already in core,
inflated and ready to be inspected), but fundamentally cannot be
applied fully when we receive more than one pack stream, as a tree
object in one pack may refer to a blob object in another pack as
".gitmodules", when we want to inspect blobs that are used as
".gitmodules" file, for example. Teach "index-pack" to emit
objects that must be inspected later and check them in the calling
"fetch-pack" process.
* jt/transfer-fsck-across-packs:
fetch-pack: print and use dangling .gitmodules
fetch-pack: with packfile URIs, use index-pack arg
http-fetch: allow custom index-pack args
http: allow custom index-pack args
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The common code to deal with "chunked file format" that is shared
by the multi-pack-index and commit-graph files have been factored
out, to help codepaths for both filetypes to become more robust.
* ds/chunked-file-api:
commit-graph.c: display correct number of chunks when writing
chunk-format: add technical docs
chunk-format: restore duplicate chunk checks
midx: use 64-bit multiplication for chunk sizes
midx: use chunk-format read API
commit-graph: use chunk-format read API
chunk-format: create read chunk API
midx: use chunk-format API in write_midx_internal()
midx: drop chunk progress during write
midx: return success/failure in chunk write methods
midx: add num_large_offsets to write_midx_context
midx: add pack_perm to write_midx_context
midx: add entries to write_midx_context
midx: use context in write_midx_pack_names()
midx: rename pack_info to write_midx_context
commit-graph: use chunk-format write API
chunk-format: create chunk format write API
commit-graph: anonymize data in chunk_write_fn
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Performance optimization work on the rename detection continues.
* en/diffcore-rename:
merge-ort: call diffcore_rename() directly
gitdiffcore doc: mention new preliminary step for rename detection
diffcore-rename: guide inexact rename detection based on basenames
diffcore-rename: complete find_basename_matches()
diffcore-rename: compute basenames of source and dest candidates
t4001: add a test comparing basename similarity and content similarity
diffcore-rename: filter rename_src list when possible
diffcore-rename: no point trying to find a match better than exact
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Preliminary changes to fsmonitor integration.
* jh/fsmonitor-prework:
fsmonitor: refactor initialization of fsmonitor_last_update token
fsmonitor: allow all entries for a folder to be invalidated
fsmonitor: log FSMN token when reading and writing the index
fsmonitor: log invocation of FSMonitor hook to trace2
read-cache: log the number of scanned files to trace2
read-cache: log the number of lstat calls to trace2
preload-index: log the number of lstat calls to trace2
p7519: add trace logging during perf test
p7519: move watchman cleanup earlier in the test
p7519: fix watchman watch-list test on Windows
p7519: do not rely on "xargs -d" in test
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* https://github.com/prati0100/git-gui:
git-gui: remove lines starting with the comment character
git-gui: fix typo in russian locale
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* js/commit-graph-warning:
Revert "commit-graph: when incompatible with graphs, indicate why"
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This reverts commit c85eec7fc37e1ca79072f263ae6ea1ee305ba38c, as
it is a bit overzealous, we are in prerelease freeze, and we want
to have enough time to get this right and cook in 'next'.
cf. <8735xgkvuo.fsf@evledraar.gmail.com>
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We've had mixed reports on whether the latest release of macOS needs
this Makefile knob set. In most reported cases, there's antivirus
software running (which one might imagine could cause an open() call to
be delayed). However, one of the (off-list) reports I've gotten
indicated that it happened on an otherwise clean install of Big Sur.
Since the symptom is so bad (checkout randomly fails to write several
fails when the progress meter kicks in), and since the workaround is so
lightweight (if we don't see EINTR, it's just an extra conditional
check), let's just turn it on by default.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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On some platforms, open() reportedly returns EINTR when opening regular
files and we receive a signal (usually SIGALRM from our progress meter).
This shouldn't happen, as open() should be a restartable syscall, and we
specify SA_RESTART when setting up the alarm handler. So it may actually
be a kernel or libc bug for this to happen. But it has been reported on
at least one version of Linux (on a network filesystem):
https://lore.kernel.org/git/c8061cce-71e4-17bd-a56a-a5fed93804da@neanderfunk.de/
as well as on macOS starting with Big Sur even on a regular filesystem.
We can work around it by retrying open() calls that get EINTR, just as
we do for read(), etc. Since we don't ever _want_ to interrupt an open()
call, we can get away with just redefining open, rather than insisting
all callsites use xopen().
We actually do have an xopen() wrapper already (and it even does this
retry, though there's no indication of it being an observed problem back
then; it seems simply to have been lifted from xread(), etc). But it is
used hardly anywhere, and isn't suitable for general use because it will
die() on error. In theory we could combine the two, but it's awkward to
do so because of the variable-args interface of open().
This patch adds a Makefile knob for enabling the workaround. It's not
enabled by default for any platforms in config.mak.uname yet, as we
don't have enough data to decide how common this is (I have not been
able to reproduce on either Linux or Big Sur myself). It may be worth
enabling preemptively anyway, since the cost is pretty low (if we don't
see an EINTR, it's just an extra conditional).
However, note that we must not enable this on Windows. It doesn't do
anything there, and the macro overrides the existing mingw_open()
redirection. I've added a preemptive #undef here in the mingw header
(which is processed first) to just quietly disable it (we could also
make it an #error, but there is little point in being so aggressive).
Reported-by: Aleksey Kliger <alklig@microsoft.com>
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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"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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