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If a commit in a sequence of linear history has a non-monotonically
increasing commit timestamp, git name-rev might not properly name the
commit.
This occurs because name-rev uses a heuristic of the commit date to
avoid searching down tags which lead to commits that are older than the
named commit. This is intended to avoid work on larger repositories.
This heuristic impacts git name-rev, and by extension git describe
--contains which is built on top of name-rev.
Further more, if --all or --annotate-stdin is used, the heuristic is not
enabled because the full history has to be analyzed anyways. This
results in some confusion if a user sees that --annotate-stdin works but
a normal name-rev does not.
If the repository has a commit graph, we can use the generation numbers
instead of using the commit dates. This is essentially the same check
except that generation numbers make it exact, where the commit date
heuristic could be incorrect due to clock errors.
Since we're extending the notion of cutoff to more than one variable,
create a series of functions for setting and checking the cutoff. This
avoids duplication and moves access of the global cutoff and
generation_cutoff to as few functions as possible.
Add several test cases including a test that covers the new commitGraph
behavior, as well as tests for --all and --annotate-stdin with and
without commitGraphs.
Signed-off-by: Jacob Keller <jacob.keller@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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Document Taylor as a new member of Git PLC at SFC. Welcome.
* tb/coc-plc-update:
CODE_OF_CONDUCT.md: update PLC members list
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Messages "ort" merge backend prepares while dealing with conflicted
paths were unnecessarily confusing since it did not differentiate
inner merges and outer merges.
* en/ort-inner-merge-conflict-report:
merge-ort: make informational messages from recursive merges clearer
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Workaround we have for versions of PCRE2 before their version 10.36
were in effect only for their versions newer than 10.36 by mistake,
which has been corrected.
* rs/pcre-invalid-utf8-fix-fix:
grep: fix triggering PCRE2_NO_START_OPTIMIZE workaround
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Setting core.untrackedCache to true failed to add the untracked
cache extension to the index.
* ds/core-untracked-cache-config:
dir: force untracked cache with core.untrackedCache
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Leakfixes.
* ab/diff-free-more:
diff.[ch]: have diff_free() free options->parseopts
diff.[ch]: have diff_free() call clear_pathspec(opts.pathspec)
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Plug (some) memory leaks around parse_date_format().
* ab/date-mode-release:
date API: add and use a date_mode_release()
date API: add basic API docs
date API: provide and use a DATE_MODE_INIT
date API: create a date.h, split from cache.h
cache.h: remove always unused show_date_human() declaration
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Finishing touches to an earlier "name-rev --annotate-stdin" series.
* jc/name-rev-stdin:
name-rev: replace --stdin with --annotate-stdin in synopsis
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Some code clean-up in the "git grep" machinery.
* ab/grep-patterntype:
grep: simplify config parsing and option parsing
grep.c: do "if (bool && memchr())" not "if (memchr() && bool)"
grep.h: make "grep_opt.pattern_type_option" use its enum
grep API: call grep_config() after grep_init()
grep.c: don't pass along NULL callback value
built-ins: trust the "prefix" from run_builtin()
grep tests: add missing "grep.patternType" config tests
grep tests: create a helper function for "BRE" or "ERE"
log tests: check if grep_config() is called by "log"-like cmds
grep.h: remove unused "regex_t regexp" from grep_opt
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"git clone --filter=... --recurse-submodules" only makes the
top-level a partial clone, while submodules are fully cloned. This
behaviour is changed to pass the same filter down to the submodules.
* js/apply-partial-clone-filters-recursively:
clone, submodule: pass partial clone filters to submodules
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Unify more messages to help l10n.
* ja/i18n-common-messages:
i18n: fix some misformated placeholders in command synopsis
i18n: remove from i18n strings that do not hold translatable parts
i18n: factorize "invalid value" messages
i18n: factorize more 'incompatible options' messages
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Further tweaks on progress API.
* ab/only-single-progress-at-once:
pack-bitmap-write.c: don't return without stop_progress()
progress API: unify stop_progress{,_msg}(), fix trace2 bug
progress.c: refactor stop_progress{,_msg}() to use helpers
progress.c: use dereferenced "progress" variable, not "(*p_progress)"
progress.h: format and be consistent with progress.c naming
progress.c tests: test some invalid usage
progress.c tests: make start/stop commands on stdin
progress.c test helper: add missing braces
leak tests: fix a memory leak in "test-progress" helper
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"git sparse-checkout" wants to work with per-worktree configuration,
but did not work well in a worktree attached to a bare repository.
* ds/sparse-checkout-requires-per-worktree-config:
config: make git_configset_get_string_tmp() private
worktree: copy sparse-checkout patterns and config on add
sparse-checkout: set worktree-config correctly
config: add repo_config_set_worktree_gently()
worktree: create init_worktree_config()
Documentation: add extensions.worktreeConfig details
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Error output given in response to an ambiguous object name has been
improved.
* ab/ambiguous-object-name:
object-name: re-use "struct strbuf" in show_ambiguous_object()
object-name: iterate ambiguous objects before showing header
object-name: show date for ambiguous tag objects
object-name: make ambiguous object output translatable
object-name: explicitly handle bad tags in show_ambiguous_object()
object-name: explicitly handle OBJ_BAD in show_ambiguous_object()
object-name tests: add tests for ambiguous object blind spots
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Documentation update
* bc/clarify-eol-attr:
doc: clarify interaction between 'eol' and text=auto
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Update mailmap entries.
* ds/mailmap:
mailmap: change primary address for Derrick Stolee
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"git log --graph --graph" used to leak a graph structure, and there
was no way to countermand "--graph" that appear earlier on the
command line. A "--no-graph" option has been added and resource
leakage has been plugged.
* ah/log-no-graph:
log: add a --no-graph option
log: fix memory leak if --graph is passed multiple times
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Fix tests that are unnecessarily specific to ref-files backend.
* hw/t1410-adjust-test-for-reftable:
t1410: mark bufsize boundary test as REFFILES
t1410: use test-tool ref-store to inspect reflogs
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A couple of optimization to "git fetch".
* ps/fetch-optim-with-commit-graph:
fetch: skip computing output width when not printing anything
fetch-pack: use commit-graph when computing cutoff
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Test modernization.
* sy/t0001-use-path-is-helper:
t0001: replace "test [-d|-f]" with test_path_is_* functions
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L10n support for a few error messages.
* bs/forbid-i18n-of-protocol-token-in-fetch-pack:
fetch-pack: parameterize message containing 'ready' keyword
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"working tree" and "per-worktree ref" were in glossary, but
"worktree" itself wasn't, which has been corrected.
* jc/glossary-worktree:
glossary: describe "worktree"
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Test modernization.
* jd/t0015-modernize:
t/t0015-hash.sh: remove unnecessary '\' at line end
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"git cmd -h" outside a repository should error out cleanly for many
commands, but instead it hit a BUG(), which has been corrected.
* js/short-help-outside-repo-fix:
t0012: verify that built-ins handle `-h` even without gitdir
checkout/fetch/pull/pack-objects: allow `-h` outside a repository
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When there is no object to write .bitmap file for, "git
multi-pack-index" triggered an error, instead of just skipping,
which has been corrected.
* tb/midx-no-bitmap-for-no-objects:
midx: prevent writing a .bitmap without any objects
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* ab/release-transport-ls-refs-options:
ls-remote & transport API: release "struct transport_ls_refs_options"
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Trivial leakfix.
* ab/hash-object-leakfix:
hash-object: fix a trivial leak in --path
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"git branch" learned the "--recurse-submodules" option.
* gc/branch-recurse-submodules:
branch.c: use 'goto cleanup' in setup_tracking() to fix memory leaks
branch: add --recurse-submodules option for branch creation
builtin/branch: consolidate action-picking logic in cmd_branch()
branch: add a dry_run parameter to create_branch()
branch: make create_branch() always create a branch
branch: move --set-upstream-to behavior to dwim_and_setup_tracking()
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Conditional test update.
* ab/t0051-skip-on-non-windows:
t0051: use "skip_all" under !MINGW in single-test file
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Because a deletion of ref would need to remove it from both the
loose ref store and the packed ref store, a delete-ref operation
that logically removes one ref may end up invoking ref-transaction
hook twice, which has been corrected.
* ps/avoid-unnecessary-hook-invocation-with-packed-refs:
refs: skip hooks when deleting uncovered packed refs
refs: do not execute reference-transaction hook on packing refs
refs: demonstrate excessive execution of the reference-transaction hook
refs: allow skipping the reference-transaction hook
refs: allow passing flags when beginning transactions
refs: extract packed_refs_delete_refs() to allow control of transaction
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Use an internal call to reset_head() helper function instead of
spawning "git checkout" in "rebase", and update code paths that are
involved in the change.
* pw/use-in-process-checkout-in-rebase:
rebase -m: don't fork git checkout
rebase --apply: set ORIG_HEAD correctly
rebase --apply: fix reflog
reset_head(): take struct rebase_head_opts
rebase: cleanup reset_head() calls
create_autostash(): remove unneeded parameter
reset_head(): make default_reflog_action optional
reset_head(): factor out ref updates
reset_head(): remove action parameter
rebase --apply: don't run post-checkout hook if there is an error
rebase: do not remove untracked files on checkout
rebase: pass correct arguments to post-checkout hook
t5403: refactor rebase post-checkout hook tests
rebase: factor out checkout for up to date branch
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"receive-pack" checks if it will do any ref updates (various
conditions could reject a push) before received objects are taken
out of the temporary directory used for quarantine purposes, so
that a push that is known-to-fail will not leave crufts that a
future "gc" needs to clean up.
* cb/clear-quarantine-early-on-all-ref-update-errors:
receive-pack: purge temporary data if no command is ready to run
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As part of our code of conduct, we maintain a list of active members on
the Project Leadership Committee, which serves a couple of purposes. The
details are in 3f9ef874a7 (CODE_OF_CONDUCT: mention individual
project-leader emails, 2019-09-26), but the gist is as follows:
- It makes it clear that people with a CoC complaint may contact
members individually as opposed to the general PLC list (in case the
subject of their complaint has to do with one of the committee
members).
- It also serves as the de-facto list of people on the PLC, which
isn't committed anywhere else in the tree.
As of [1], Peff is no longer a member of Git's Project Leadership
Committee. Let's update the list of active members accordingly [2].
This also gives us a convenient opportunity to thank Peff for his many
years of service on the PLC, during which he helped the Git community in
more ways than we can easily list here.
[1]: https://lore.kernel.org/git/YboaAe4LWySOoAe7@coredump.intra.peff.net/
[2]: https://lore.kernel.org/git/CAP8UFD2XxP9r3PJ4GQjxUbV=E1ASDq1NDgB-h+S=v-bZQ7DYwQ@mail.gmail.com/
Signed-off-by: Taylor Blau <me@ttaylorr.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 command line completion script (in contrib/) learned to
complete all Git subcommands, including the ones that are normally
hidden, when GIT_COMPLETION_SHOW_ALL_COMMANDS is used.
* ab/complete-show-all-commands:
completion: add a GIT_COMPLETION_SHOW_ALL_COMMANDS
completion tests: re-source git-completion.bash in a subshell
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Style updates on a test script helper.
* sy/modernize-t-lib-read-tree-m-3way:
t/lib-read-tree-m-3way: indent with tabs
t/lib-read-tree-m-3way: modernize style
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Typofix.
* po/doc-check-ignore-markup-fix:
doc: check-ignore: code-quote an exclamation mark
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Scalar update.
* js/scalar-global-options:
scalar: accept -C and -c options before the subcommand
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"git update-index", "git checkout-index", and "git clean" are
taught to work better with the sparse checkout feature.
* vd/sparse-clean-etc:
update-index: reduce scope of index expansion in do_reupdate
update-index: integrate with sparse index
update-index: add tests for sparse-checkout compatibility
checkout-index: integrate with sparse index
checkout-index: add --ignore-skip-worktree-bits option
checkout-index: expand sparse checkout compatibility tests
clean: integrate with sparse index
reset: reorder wildcard pathspec conditions
reset: fix validation in sparse index test
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"git log" and friends learned an option --exclude-first-parent-only
to propagate UNINTERESTING bit down only along the first-parent
chain, just like --first-parent option shows commits that lack the
UNINTERESTING bit only along the first-parent chain.
* jz/rev-list-exclude-first-parent-only:
git-rev-list: add --exclude-first-parent-only flag
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Unlike "git apply", "git patch-id" did not handle patches with
hunks that has only 1 line in either preimage or postimage, which
has been corrected.
* jz/patch-id-hunk-header-parsing-fix:
patch-id: fix scan_hunk_header on diffs with 1 line of before/after
patch-id: fix antipatterns in tests
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Prepare more test scripts for the introduction of reftable.
* hn/reftable-tests:
t5312: prepare for reftable
t1405: mark test that checks existence as REFFILES
t1405: explictly delete reflogs for reftable
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When "git subtree" wants to create a merge, it used "git merge" and
let it be affected by end-user's "merge.ff" configuration, which
has been corrected.
* tk/subtree-merge-not-ff-only:
subtree: force merge commit
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This is another simple change with a long explanation...
merge-recursive and merge-ort are both based on the same recursive idea:
if there is more than one merge base, merge the merge bases (which may
require first merging the merge bases of the merges bases, etc.). The
depth of the inner merge is recorded via a variable called "call_depth",
which we'll bring up again later. Naturally, the inner merges
themselves can have conflicts and various messages generated about those
files.
merge-recursive immediately prints to stdout as it goes, at the risk of
printing multiple conflict notices for the same path separated far apart
from each other with many intervenining conflict notices for other paths
between them. And this is true even if there are no inner merges
involved. An example of this was given in [1] and apparently caused
some confusion:
CONFLICT (rename/add): Rename A->B in HEAD. B added in otherbranch
...dozens of conflicts for OTHER paths...
CONFLICT (content): Merge conflicts in B
In contrast, merge-ort collects messages and stores them by path so that
it can print them grouped by path. Thus, the same case handled by
merge-ort would have output of the form:
CONFLICT (rename/add): Rename A->B in HEAD. B added in otherbranch
CONFLICT (content): Merge conflicts in B
...dozens of conflicts for OTHER paths...
This is generally helpful, but does make a separate bug more
problematic. In particular, while merge-recursive might report the
following for a recursive merge:
Auto-merging dir.c
Auto-merging midx.c
CONFLICT (content): Merge conflict in midx.c
Auto-merging diff.c
Auto-merging dir.c
CONFLICT (content): Merge conflict in dir.c
merge-ort would instead report:
Auto-merging diff.c
Auto-merging dir.c
Auto-merging dir.c
CONFLICT (content): Merge conflict in dir.c
Auto-merging midx.c
CONFLICT (content): Merge conflict in midx.c
The fact that messages for the same file are together is probably
helpful in general, but with the indentation missing for the inner
merge it unfortunately serves to confuse. This probably would lead
users to wonder:
* Why is Git reporting that "dir.c" is being merged twice?
* If midx.c has conflicts, why do I not see any when I open up the
file and why are no conflicts shown in the index?
Fix this output confusion by changing the output to clearly
differentiate the messages for outer merges from the ones for inner
merges, changing the above output from merge-ort to:
Auto-merging diff.c
From inner merge: Auto-merging dir.c
Auto-merging dir.c
CONFLICT (content): Merge conflict in dir.c
From inner merge: Auto-merging midx.c
From inner merge: CONFLICT (content): Merge conflict in midx.c
(Note: the number of spaces after the 'From inner merge:' is
2*call_depth).
One other thing to note here, that I didn't notice until typing up this
commit message, is that merge-recursive does not print any messages from
the inner merges by default; the extra verbosity has to be requested.
merge-ort currently has no verbosity controls and always prints these.
We may also want to change that, but for now, just make the output
clearer with these extra markings and indentation.
[1] https://lore.kernel.org/git/CAGyf7-He4in8JWUh9dpAwvoPkQz9hr8nCBpxOxhZEd8+jtqTpg@mail.gmail.com/
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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PCRE2 bug 2642 was fixed in version 10.36. Our 95ca1f987e (grep/pcre2:
better support invalid UTF-8 haystacks, 2021-01-24) worked around it on
older versions by setting the flag PCRE2_NO_START_OPTIMIZE. 797c359978
(grep/pcre2: use compile-time PCREv2 version test, 2021-02-18) switched
it around to set the flag on 10.36 and higher instead, while it claimed
to use "the same test done at compile-time".
Switch the condition back to apply the workaround on PCRE2 versions
_before_ 10.36.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The GIT_FORCE_UNTRACKED_CACHE environment variable writes the untracked
cache more frequently than the core.untrackedCache config variable. This
is due to how read_directory() handles the creation of an untracked
cache.
Before this change, Git would not create the untracked cache extension
for an index that did not already have one. Users would need to run a
command such as 'git update-index --untracked-cache' before the index
would actually contain an untracked cache.
In particular, users noticed that the untracked cache would not appear
even with core.untrackedCache=true. Some users reported setting
GIT_FORCE_UNTRACKED_CACHE=1 in their engineering system environment to
ensure the untracked cache would be created.
The decision to not write the untracked cache without an environment
variable tracks back to fc9ecbeb9 (dir.c: don't flag the index as dirty
for changes to the untracked cache, 2018-02-05). The motivation of that
change is that writing the index is expensive, and if the untracked
cache is the only thing that needs to be written, then it is more
expensive than the benefit of the cache. However, this also means that
the untracked cache never gets populated, so the user who enabled it via
config does not actually get the extension until running 'git
update-index --untracked-cache' manually or using the environment
variable.
We have had a version of this change in the microsoft/git fork for a few
major releases now. It has been working well to get users into a good
state. Yes, that first index write is slow, but the remaining index
writes are much faster than they would be without this change.
Signed-off-by: Derrick Stolee <derrickstolee@github.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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Jacob Keller
Junio C Hamano
Taylor Blau
Elijah Newren
René Scharfe
Derrick Stolee