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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A race that leads to an access to a free'd data was corrected in
the codepath that reads pack files.
* mt/delta-base-cache-races:
packfile: fix memory leak in add_delta_base_cache()
packfile: fix race condition on unpack_entry()
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"git shortlog" has been taught to group commits by the contents of
the trailer lines, like "Reviewed-by:", "Coauthored-by:", etc.
* jk/shortlog-group-by-trailer:
shortlog: allow multiple groups to be specified
shortlog: parse trailer idents
shortlog: rename parse_stdin_ident()
shortlog: de-duplicate trailer values
shortlog: match commit trailers with --group
trailer: add interface for iterating over commit trailers
shortlog: add grouping option
shortlog: change "author" variables to "ident"
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Docfix.
* jc/fmt-merge-msg-suppress-destination:
config/fmt-merge-msg.txt: drop space in quote
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Hotfix.
* tb/upload-pack-filters:
config/uploadpack.txt: fix typo in `--filter=tree:<n>`
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Code simplification.
* jc/sequencer-stopped-sha-simplify:
sequencer: stop abbreviating stopped-sha file
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The command line completion (in contrib/) learned that "git restore
-s <TAB>" is often followed by a refname.
* au/complete-restore-s:
completion: complete refs after 'git restore -s'
completion: use "prev" variable instead of introducing "prevword"
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Hotfix.
* al/ref-filter-merged-and-no-merged:
ref-filter: plug memory leak in reach_filter()
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The explanation of the "scissors line" has been clarified.
* eg/mailinfo-doc-scissors:
Doc: show example scissors line
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Rewrite of the "git bisect" script in C continues.
* mr/bisect-in-c-2:
bisect--helper: reimplement `bisect_next` and `bisect_auto_next` shell functions in C
bisect: call 'clear_commit_marks_all()' in 'bisect_next_all()'
bisect--helper: reimplement `bisect_autostart` shell function in C
bisect--helper: introduce new `write_in_file()` function
bisect--helper: use '-res' in 'cmd_bisect__helper' return
bisect--helper: BUG() in cmd_*() on invalid subcommand
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"git bisect start X Y", when X and Y are not valid committish
object names, should take X and Y as pathspec, but didn't.
* cc/bisect-start-fix:
bisect: don't use invalid oid as rev when starting
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"git blame --ignore-rev/--ignore-revs-file" failed to validate
their input are valid revision, and failed to take into account
that the user may want to give an annotated tag instead of a
commit, which has been corrected.
* jc/blame-ignore-fix:
blame: validate and peel the object names on the ignore list
t8013: minimum preparatory clean-up
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Compilation fix around type punning.
* jk/drop-unaligned-loads:
Revert "fast-export: use local array to store anonymized oid"
bswap.h: drop unaligned loads
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The installation procedure learned to optionally omit "git-foo"
executable files for each 'foo' built-in subcommand, which are only
required by old timers that still rely on the age old promise that
prepending "git --exec-path" output to PATH early in their script
will keep the "git-foo" calls they wrote working.
The old attempt to remove these executables from the disk failed in
the 1.6 era; it may be worth attempting again, but I think it is
worth to keep this topic separate from such a policy change to help
it graduate early.
* js/no-builtins-on-disk-option:
ci: stop linking built-ins to the dashed versions
Optionally skip linking/copying the built-ins
msvc: copy the correct `.pdb` files in the Makefile target `install`
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Modernization and fixes to MediaWiki remote backend.
* ab/mediawiki-fixes:
remote-mediawiki: use "sh" to eliminate unquoted commands
remote-mediawiki: annotate unquoted uses of run_git()
remote-mediawiki: convert to quoted run_git() invocation
remote-mediawiki: provide a list form of run_git()
remote-mediawiki tests: annotate failing tests
remote-mediawiki: fix duplicate revisions being imported
remote-mediawiki tests: use CLI installer
remote-mediawiki tests: use inline PerlIO for readability
remote-mediawiki tests: replace deprecated Perl construct
remote-mediawiki tests: use a more idiomatic dispatch table
remote-mediawiki tests: use "$dir/" instead of "$dir."
remote-mediawiki tests: change `[]` to `test`
remote-mediawiki tests: use test_cmp in tests
remote-mediawiki tests: use a 10 character password
remote-mediawiki tests: use the login/password variables
remote-mediawiki doc: don't hardcode Debian PHP versions
remote-mediawiki doc: link to MediaWiki's current version
remote-mediawiki doc: correct link to GitHub project
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Earlier we taught "git pull" to warn when the user does not say the
histories need to be merged, rebased or accepts only fast-
forwarding, but the warning triggered for those who have set the
pull.ff configuration variable.
* ah/pull:
pull: don't warn if pull.ff has been set
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"git range-diff" showed incorrect diffstat, which has been
corrected.
* tg/range-diff-same-file-fix:
diff: fix modified lines stats with --stat and --numstat
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Test update.
* jc/t1506-rev-parse-leaves-range-endpoint-unpeeled:
t1506: rev-parse A..B and A...B
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Adjust sample hooks for hash algorithm other than SHA-1.
* dl/zero-oid-in-hooks:
hooks--update.sample: use hash-agnostic zero OID
hooks--pre-push.sample: use hash-agnostic zero OID
hooks--pre-push.sample: modernize script
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The transport protocol v2 has become the default again.
* jk/make-protocol-v2-the-default:
protocol: re-enable v2 protocol by default
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"git clone" that clones from SHA-1 repository, while
GIT_DEFAULT_HASH set to use SHA-256 already, resulted in an
unusable repository that half-claims to be SHA-256 repository
with SHA-1 objects and refs. This has been corrected.
* bc/clone-with-git-default-hash-fix:
builtin/clone: avoid failure with GIT_DEFAULT_HASH
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"git commit-graph write" learned to limit the number of bloom
filters that are computed from scratch with the --max-new-filters
option.
* tb/bloom-improvements:
commit-graph: introduce 'commitGraph.maxNewFilters'
builtin/commit-graph.c: introduce '--max-new-filters=<n>'
commit-graph: rename 'split_commit_graph_opts'
bloom: encode out-of-bounds filters as non-empty
bloom/diff: properly short-circuit on max_changes
bloom: use provided 'struct bloom_filter_settings'
bloom: split 'get_bloom_filter()' in two
commit-graph.c: store maximum changed paths
commit-graph: respect 'commitGraph.readChangedPaths'
t/helper/test-read-graph.c: prepare repo settings
commit-graph: pass a 'struct repository *' in more places
t4216: use an '&&'-chain
commit-graph: introduce 'get_bloom_filter_settings()'
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More FAQ entries.
* bc/faq-misc:
docs: explain how to deal with files that are always modified
docs: explain why reverts are not always applied on merge
docs: explain why squash merges are broken with long-running branches
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When add_delta_base_cache() is called with a base that is already in the
cache, no operation is performed. But the check is done after allocating
space for a new entry, so we end up leaking memory on the early return.
In addition, the caller never free()'s the base as it expects the
function to take ownership of it. But the base is not released when we
skip insertion, so it also gets leaked. To fix these problems, move the
allocation of a new entry further down in add_delta_base_cache(), and
free() the base on early return.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The third phase of unpack_entry() performs the following sequence in a
loop, until all the deltas enumerated in phase one are applied and the
entry is fully reconstructed:
1. Add the current base entry to the delta base cache
2. Unpack the next delta
3. Patch the unpacked delta on top of the base
When the optional object reading lock is enabled, the above steps will
be performed while holding the lock. However, step 2. momentarily
releases it so that inflation can be performed in parallel for increased
performance. Because the `base` buffer inserted in the cache at 1. is
not duplicated, another thread can potentially free() it while the lock
is released at 2. (e.g. when there is no space left in the cache to
insert another entry). In this case, the later attempt to dereference
`base` at 3. will cause a segmentation fault. This problem was observed
during a multithreaded git-grep execution on a repository with large
objects.
To fix the race condition (and later segmentation fault), let's reorder
the aforementioned steps so that `base` is only added to the cache at
the end. This will prevent the buffer from being released by another
thread while it is still in use. An alternative solution which would not
require the reordering would be to duplicate `base` before inserting it
in the cache. However, as Phil Hord mentioned, memcpy()'ing large bases
can negatively affect performance: in his experiments, this alternative
approach slowed git-grep down by 10% to 20%.
Reported-by: Phil Hord <phil.hord@gmail.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The text tries to say the code accepts many variations that look remotely
like scissors and perforation marks, but gives too little detail for users
to decide what is and what is not taken as a scissors line for themselves.
Instead of describing the heuristics more, just spell out what will always
be accepted, namely "-- >8 --", as it would not help users to give them
more choices and flexibility and be "creative" in their scissors line.
Signed-off-by: Evan Gates <evan.gates@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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That should be a ":", not a second "=". While at it, refer to the
placeholder "<n>" as "<n>", not "n" (see, e.g., the entry just before
this one).
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We document how `merge.suppressDest` can be used to omit " into <branch
name>" from the title of the merge message. It is true that we omit the
space character before "into", but that lone double quote character
risks ending up on the wrong side of a line break, looking a bit out of
place. This currently happens with, e.g., 80-character terminals.
Drop that leading quoted space. The result should be just as clear about
how this option affects the formatted message.
Signed-off-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Now that shortlog supports reading from trailers, it can be useful to
combine counts from multiple trailers, or between trailers and authors.
This can be done manually by post-processing the output from multiple
runs, but it's non-trivial to make sure that each name/commit pair is
counted only once.
This patch teaches shortlog to accept multiple --group options on the
command line, and pull data from all of them. That makes it possible to
run:
git shortlog -ns --group=author --group=trailer:co-authored-by
to get a shortlog that counts authors and co-authors equally.
The implementation is mostly straightforward. The "group" enum becomes a
bitfield, and the trailer key becomes a list. I didn't bother
implementing the multi-group semantics for reading from stdin. It would
be possible to do, but the existing matching code makes it awkward, and
I doubt anybody cares.
The duplicate suppression we used for trailers now covers authors and
committers as well (though in non-trailer single-group mode we can skip
the hash insertion and lookup, since we only see one value per commit).
There is one subtlety: we now care about the case when no group bit is
set (in which case we default to showing the author). The caller in
builtin/log.c needs to be adapted to ask explicitly for authors, rather
than relying on shortlog_init(). It would be possible with some
gymnastics to make this keep working as-is, but it's not worth it for a
single caller.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Trailers don't necessarily contain name/email identity values, so
shortlog has so far treated them as opaque strings. However, since many
trailers do contain identities, it's useful to treat them as such when
they can be parsed. That lets "-e" work as usual, as well as mailmap.
When they can't be parsed, we'll continue with the old behavior of
treating them as a single string (there's no new test for that here,
since the existing tests cover a trailer like this).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function is actually useful for parsing any identity, whether from
stdin or not. We'll need it for handling trailers.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The current documentation is vague about what happens with
--group=trailer:signed-off-by when we see a commit with:
Signed-off-by: One
Signed-off-by: Two
Signed-off-by: One
We clearly should credit both "One" and "Two", but should "One" get
credited twice? The current code does so, but mostly because that was
the easiest thing to do. It's probably more useful to count each commit
at most once. This will become especially important when we allow
values from multiple sources in a future patch.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If a project uses commit trailers, this patch lets you use
shortlog to see who is performing each action. For example,
running:
git shortlog -ns --group=trailer:reviewed-by
in git.git shows who has reviewed. You can even use a custom
format to see things like who has helped whom:
git shortlog --format="...helped %an (%ad)" \
--group=trailer:helped-by
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The trailer code knows how to parse out the trailers and re-format them,
but there's no easy way to iterate over the trailers (you can use
trailer_info, but you have to then do a bunch of extra parsing).
Let's add an iteration interface that makes this easy to do.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In preparation for adding more grouping types, let's refactor the
committer/author grouping code and add a user-facing option that binds
them together. In particular:
- the main option is now "--group", to make it clear
that the various group types are mutually exclusive. The
"--committer" option is an alias for "--group=committer".
- we keep an enum rather than a binary flag, to prepare
for more values
- we prefer switch statements to ternary assignment, since
other group types will need more custom code
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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21bf933928 (ref-filter: allow merged and no-merged filters, 2020-09-15)
added an early return to reach_filter(). Avoid leaking the memory of a
then unused array by postponing its allocation until we know we need it.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently only the long version (--source=) supports completion.
Add completion support to the short (-s) option too.
Signed-off-by: Ákos Uzonyi <uzonyi.akos@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In both _git_checkout and _git_switch a new "prevword" variable were
introduced, however the "prev" variable already contains the last word.
The "prevword" variable is replaced with "prev", and the case is moved
to the beginning of the function, like it's done in many other places
(e.g. _git_commit). Also the indentaion of the case is fixed.
Signed-off-by: Ákos Uzonyi <uzonyi.akos@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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"diff-highlight" (in contrib/) had a logic to flush its output upon
seeing a blank line but the way it detected a blank line was broken.
* jk/diff-highlight-blank-match-fix:
diff-highlight: correctly match blank lines for flush
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"git push" that wants to be atomic and wants to send push
certificate learned not to prepare and sign the push certificate
when it fails the local check (hence due to atomicity it is known
that no certificate is needed).
* hx/push-atomic-with-cert:
send-pack: run GPG after atomic push checking
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Code cleanup.
* rs/misc-cleanups:
pack-write: use hashwrite_be32() in write_idx_file()
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The "unshelve" subcommand of "git p4" used incorrectly used
commit^N where it meant to say commit~N to name the Nth generation
ancestor, which has been corrected.
* ld/p4-unshelve-fix:
git-p4: use HEAD~$n to find parent commit for unshelve
git-p4 unshelve: adding a commit breaks git-p4 unshelve
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"git receive-pack" that accepts requests by "git push" learned to
outsource most of the ref updates to the new "proc-receive" hook.
* jx/proc-receive-hook:
doc: add documentation for the proc-receive hook
transport: parse report options for tracking refs
t5411: test updates of remote-tracking branches
receive-pack: new config receive.procReceiveRefs
doc: add document for capability report-status-v2
New capability "report-status-v2" for git-push
receive-pack: feed report options to post-receive
receive-pack: add new proc-receive hook
t5411: add basic test cases for proc-receive hook
transport: not report a non-head push as a branch
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A "git gc"'s big brother has been introduced to take care of more
repository maintenance tasks, not limited to the object database
cleaning.
* ds/maintenance-part-1:
maintenance: add trace2 regions for task execution
maintenance: add auto condition for commit-graph task
maintenance: use pointers to check --auto
maintenance: create maintenance.<task>.enabled config
maintenance: take a lock on the objects directory
maintenance: add --task option
maintenance: add commit-graph task
maintenance: initialize task array
maintenance: replace run_auto_gc()
maintenance: add --quiet option
maintenance: create basic maintenance runner
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The object name written to this file is not exposed to end-users and
the only reader of this file immediately expands it back to a full
object name. Stop abbreviating while writing, and expect a full
object name while reading, which simplifies the code a bit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Because these constructs can be used to parse user input to be
passed to rev-list --objects, e.g.
range=$(git rev-parse v1.0..v2.0) &&
git rev-list --objects $range | git pack-objects --stdin
the endpoints (v1.0 and v2.0 in the example) are shown without
peeling them to underlying commits, even when they are annotated
tags. Make sure it stays that way.
While at it, ensure "rev-parse A...B" also keeps the endpoints A and
B unpeeled, even though the negative side (i.e. the merge-base
between A and B) has to become a commit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Protocol v2 became the default in v2.26.0 via 684ceae32d (fetch: default
to protocol version 2, 2019-12-23). More widespread use turned up a
regression in negotiation. That was fixed in v2.27.0 via 4fa3f00abb
(fetch-pack: in protocol v2, in_vain only after ACK, 2020-04-27), but we
also reverted the default to v0 as a precuation in 11c7f2a30b (Revert
"fetch: default to protocol version 2", 2020-04-22).
In v2.28.0, we re-enabled it for experimental users with 3697caf4b9
(config: let feature.experimental imply protocol.version=2, 2020-05-20)
and haven't heard any complaints. v2.28 has only been out for 2 months,
but I'd generally expect people turning on feature.experimental to also
stay pretty up-to-date. So we're not likely to collect much more data by
waiting. In addition, we have no further reports from people running
v2.26.0, and of course some people have been setting protocol.version
manually for ages.
Let's move forward with v2 as the default again. It's possible there are
still lurking bugs, but we won't know until it gets more widespread use.
And we can find and squash them just like any other bug at this point.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We already match "committer", and we're about to start
matching more things. Let's use a more neutral variable to
avoid confusion.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
Matheus Tavares
Evan Gates
Martin Ågren
Jeff King
René Scharfe
Ákos Uzonyi