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Debugging aid.
* js/log-protocol-version:
connect, protocol: log negotiated protocol version
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Documentation updates.
* en/merge-strategy-docs:
Update error message and code comment
merge-strategies.txt: add coverage of the `ort` merge strategy
git-rebase.txt: correct out-of-date and misleading text about renames
merge-strategies.txt: fix simple capitalization error
merge-strategies.txt: avoid giving special preference to patience algorithm
merge-strategies.txt: do not imply using copy detection is desired
merge-strategies.txt: update wording for the resolve strategy
Documentation: edit awkward references to `git merge-recursive`
directory-rename-detection.txt: small updates due to merge-ort optimizations
git-rebase.txt: correct antiquated claims about --rebase-merges
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Doc update.
* ab/bundle-doc:
bundle doc: replace "basis" with "prerequsite(s)"
bundle doc: elaborate on rev<->ref restriction
bundle doc: elaborate on object prerequisites
bundle doc: rewrite the "DESCRIPTION" section
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test portability update.
* tb/aggregate-ignore-leading-whitespaces:
t/perf/aggregate.perl: tolerate leading spaces
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Test portability update.
* rs/p3400-lose-tac:
p3400: stop using tac(1)
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Message fix.
* mr/bisect-in-c-4:
bisect--helper: add space between colon and following sentence
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Code clean-up in "git difftool".
* da/difftool:
difftool: add a missing space to the run_dir_diff() comments
difftool: remove an unnecessary call to strbuf_release()
difftool: refactor dir-diff to write files using helper functions
difftool: create a tmpdir path without repeated slashes
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Code clean-up.
* ab/designated-initializers:
cbtree.h: define cb_init() in terms of CBTREE_INIT
*.h: move some *_INIT to designated initializers
*.h _INIT macros: don't specify fields equal to 0
*.[ch] *_INIT macros: use { 0 } for a "zero out" idiom
submodule-config.h: remove unused SUBMODULE_INIT macro
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CI learns to run the leak sanitizer builds.
* ab/sanitize-leak-ci:
tests: add a test mode for SANITIZE=leak, run it in CI
Makefile: add SANITIZE=leak flag to GIT-BUILD-OPTIONS
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Code cleanup.
* ab/retire-git-config-key-is-valid:
config.c: remove unused git_config_key_is_valid()
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The ref iteration code used to optionally allow dangling refs to be
shown, which has been tightened up.
* jk/ref-paranoia:
refs: drop "broken" flag from for_each_fullref_in()
ref-filter: drop broken-ref code entirely
ref-filter: stop setting FILTER_REFS_INCLUDE_BROKEN
repack, prune: drop GIT_REF_PARANOIA settings
refs: turn on GIT_REF_PARANOIA by default
refs: omit dangling symrefs when using GIT_REF_PARANOIA
refs: add DO_FOR_EACH_OMIT_DANGLING_SYMREFS flag
refs-internal.h: reorganize DO_FOR_EACH_* flag documentation
refs-internal.h: move DO_FOR_EACH_* flags next to each other
t5312: be more assertive about command failure
t5312: test non-destructive repack
t5312: create bogus ref as necessary
t5312: drop "verbose" helper
t5600: provide detached HEAD for corruption failures
t5516: don't use HEAD ref for invalid ref-deletion tests
t7900: clean up some more broken refs
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HTTPS error handling updates.
* ab/http-pinned-public-key-mismatch:
http: check CURLE_SSL_PINNEDPUBKEYNOTMATCH when emitting errors
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Compilation fix.
* js/win-lazyload-buildfix:
Makefile: restrict -Wpedantic and -Wno-pedantic-ms-format better
lazyload.h: use an even more generic function pointer than FARPROC
lazyload.h: fix warnings about mismatching function pointer types
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Test updates.
* sg/test-split-index-fix:
read-cache: fix GIT_TEST_SPLIT_INDEX
tests: disable GIT_TEST_SPLIT_INDEX for sparse index tests
read-cache: look for shared index files next to the index, too
t1600-index: disable GIT_TEST_SPLIT_INDEX
t1600-index: don't run git commands upstream of a pipe
t1600-index: remove unnecessary redirection
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"git multi-pack-index write --bitmap" learns to propagate the
hashcache from original bitmap to resulting bitmap.
* tb/midx-write-propagate-namehash:
t5326: test propagating hashcache values
p5326: generate pack bitmaps before writing the MIDX bitmap
p5326: don't set core.multiPackIndex unnecessarily
p5326: create missing 'perf-tag' tag
midx.c: respect 'pack.writeBitmapHashcache' when writing bitmaps
pack-bitmap.c: propagate namehash values from existing bitmaps
t/helper/test-bitmap.c: add 'dump-hashes' mode
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When "cat-file --batch-all-objects" iterates over each object, it knows
where to find each one. But when we look up details of the object, we
don't use that information at all.
This patch teaches it to use the pack/offset pair when we're iterating
over objects in a pack. This yields a measurable speed improvement
(timings on a fully packed clone of linux.git):
Benchmark #1: ./git.old cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"
Time (mean ± σ): 8.128 s ± 0.118 s [User: 7.968 s, System: 0.156 s]
Range (min … max): 8.007 s … 8.301 s 10 runs
Benchmark #2: ./git.new cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"
Time (mean ± σ): 4.294 s ± 0.064 s [User: 4.167 s, System: 0.125 s]
Range (min … max): 4.227 s … 4.457 s 10 runs
Summary
'./git.new cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"' ran
1.89 ± 0.04 times faster than './git.old cat-file --batch-all-objects --unordered --batch-check="%(objecttype) %(objectname)"
The implementation is pretty simple: we just call packed_object_info()
instead of oid_object_info_extended() when we can. Most of the changes
are just plumbing the pack/offset pair through the callstack. There is
one subtlety: replace lookups are not handled by packed_object_info().
But since those are disabled for --batch-all-objects, and since we'll
only have pack info when that option is in effect, we don't have to
worry about that.
There are a few limitations to this optimization which we could address
with further work:
- I didn't bother recording when we found an object loose. Technically
this could save us doing a fruitless lookup in the pack index. But
opening and mmap-ing a loose object is so expensive in the first
place that this doesn't matter much. And if your repository is large
enough to care about per-object performance, most objects are going
to be packed anyway.
- This works only in --unordered mode. For the sorted mode, we'd have
to record the pack/offset pair as part of our oid-collection. That's
more code, plus at least 16 extra bytes of heap per object. It would
probably still be a net win in runtime, but we'd need to measure.
- For --batch, this still helps us with getting the object metadata,
but we still do a from-scratch lookup for the object contents. This
probably doesn't matter that much, because the lookup cost will be
much smaller relative to the cost of actually unpacking and printing
the objects.
For small objects, we could probably swap out read_object_file() for
using packed_object_info() with a "object_info.contentp" to get the
contents. But we'd still need to deal with streaming for larger
objects. A better path forward here is to teach the initial
oid_object_info_extended() / packed_object_info() calls to retrieve
the contents of smaller objects while they are already being
accessed. That would save the extra lookup entirely. But it's a
non-trivial feature to add to the object_info code, so I left it for
now.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we originally added --batch-all-objects, it stuffed everything into
an oid_array(), and then iterated over that array with a callback to
write the actual output.
When we later added --unordered, that code path writes immediately as we
discover each object, but just calls the same batch_object_cb() as our
entry point to the writing code. That callback has a narrow interface;
it only receives the oid, but we know much more about each object in the
unordered write (which we'll make use of in the next patch). So let's
just call batch_object_write() directly. The callback wasn't saving us
much effort.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we're enumerating all objects in the object database, it doesn't
make sense to respect refs/replace. The point of this option is to
enumerate all of the objects in the database at a low level. By
definition we'd already show the replacement object's contents (under
its real oid), and showing those contents under another oid is almost
certainly working against what the user is trying to do.
Note that you could make the same argument for something like:
git show-index <foo.idx |
awk '{print $2}' |
git cat-file --batch
but there we can't know in cat-file exactly what the user intended,
because we don't know the source of the input. They could be trying to
do low-level debugging, or they could be doing something more high-level
(e.g., imagine a porcelain built around cat-file for its object
accesses). So in those cases, we'll have to rely on the user specifying
"git --no-replace-objects" to tell us what to do.
One _could_ make an argument that "cat-file --batch" is sufficiently
low-level plumbing that it should not respect replace-objects at all
(and the caller should do any replacement if they want it). But we have
been doing so for some time. The history is a little tangled:
- looking back as far as v1.6.6, we would not respect replace refs for
--batch-check, but would for --batch (because the former used
sha1_object_info(), and the replace mechanism only affected actual
object reads)
- this discrepancy was made even weirder by 98e2092b50 (cat-file:
teach --batch to stream blob objects, 2013-07-10), where we always
output the header using the --batch-check code, and then printed the
object separately. This could lead to "cat-file --batch" dying (when
it notices the size or type changed for a non-blob object) or even
producing bogus output (in streaming mode, we didn't notice that we
wrote the wrong number of bytes).
- that persisted until 1f7117ef7a (sha1_file: perform object
replacement in sha1_object_info_extended(), 2013-12-11), which then
respected replace refs for both forms.
So it has worked reliably this way for over 7 years, and we should make
sure it continues to do so. That could also be an argument that
--batch-all-objects should not change behavior (which this patch is
doing), but I really consider the current behavior to be an unintended
bug. It's a side effect of how the code is implemented (feeding the oids
back into oid_object_info() rather than looking at what we found while
reading the loose and packed object storage).
The implementation is straight-forward: we just disable the global
read_replace_refs flag when we're in --batch-all-objects mode. It would
perhaps be a little cleaner to change the flag we pass to
oid_object_info_extended(), but that's not enough. We also read objects
via read_object_file() and stream_blob_to_fd(). The former could switch
to its _extended() form, but the streaming code has no mechanism for
disabling replace refs. Setting the global flag works, and as a bonus,
it's impossible to have any "oops, we're sometimes replacing the object
and sometimes not" bugs in the output (like the ones caused by
98e2092b50 above).
The tests here cover the regular-input and --batch-all-objects cases,
for both --batch-check and --batch. There is a test in t6050 that covers
the regular-input case with --batch already, but this new one goes much
further in actually verifying the output (plus covering --batch-check
explicitly). This is perhaps a little overkill and the tests would be
simpler just covering --batch-check, but I wanted to make sure we're
checking that --batch output is consistent between the header and the
content. The global-flag technique used here makes that easy to get
right, but this is future-proofing us against regressions.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The note on ordering for --batch-all-objects was written when that was
the only possible ordering. These days we have --unordered, too, so
let's point to it.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A few of the tests create intentionally broken objects with broken
types. Let's clean them up after we're done with them, so that later
tests don't get confused (we hadn't noticed because this only affects
tests which use --batch-all-objects, but I'm about to add more).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit cdc2d5f11f1a (builtin/blame: dim uninteresting metadata lines,
2018-04-23) and 25d5f52901f0 (builtin/blame: highlight recently changed
lines, 2018-04-23) introduce --color-lines and --color-by-age options to
git blame, respectively. While both options are mentioned in usage help,
they aren't documented in git-blame(1). Document them.
Co-authored-by: Dr. Matthias St. Pierre <m.st.pierre@ncp-e.com>
Signed-off-by: Dr. Matthias St. Pierre <m.st.pierre@ncp-e.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use MINSTD to generate pseudo-random numbers consistently instead of
using rand(3), whose output can vary from system to system, and reset
its seed before filling in the test values. This gives repeatable
results across versions and systems, which simplifies sharing and
comparing of results between developers.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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6e773527b6 (sparse-index: convert from full to sparse, 2021-03-30) made
verify_path() accept trailing directory separators for directories,
which is necessary for sparse directory entries. This clemency causes
"git stash" to stumble over sub-repositories, though, and there may be
more unintended side-effects.
Avoid them by restoring the old verify_path() behavior and accepting
trailing directory separators only in places that are supposed to handle
sparse directory entries.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Turn verify_path() into an internal function that distinguishes between
valid paths and those with trailing directory separators and rename it
to verify_path_internal(). Provide a wrapper with the old behavior
under the old name. No functional change intended. The new function
will be used in the next patch.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git stash" used to ignore sub-repositories until 6e773527b6
(sparse-index: convert from full to sparse, 2021-03-30). Add a test
that demonstrates this regression.
Reported-by: Robert Leftwich <robert@gitpod.io>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In read_midx_preferred_pack(), we open the bitmap index but never free
it. This isn't a big deal since this is just a test helper, and we exit
immediately after, but since we're trying to keep our leak-checking tidy
now, it's worth fixing.
Signed-off-by: Jeff King <peff@peff.net>
Acked-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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Remove external declaration of functions that no longer exist.
* ab/retire-decl-of-missing-unused-funcs:
config.h: remove unused git_config_get_untracked_cache() declaration
log-tree.h: remove unused function declarations
grep.h: remove unused grep_threads_ok() declaration
builtin.h: remove cmd_tar_tree() declaration
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Testfix.
* lh/systemd-timers:
maintenance: fix test t7900-maintenance.sh
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Code cleanup.
* ab/retire-string-list-init:
string-list.[ch]: remove string_list_init() compatibility function
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Code cleanup.
* ab/retire-refs-unused-funcs:
refs/ref-cache.[ch]: remove "incomplete" from create_dir_entry()
refs/ref-cache.c: remove "mkdir" parameter from find_containing_dir()
refs/ref-cache.[ch]: remove unused add_ref_entry()
refs/ref-cache.[ch]: remove unused remove_entry_from_dir()
refs.[ch]: remove unused ref_storage_backend_exists()
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Docfix.
* os/status-docfix:
doc: fix capitalization in "git status --porcelain=v2" description
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Doc update.
* ws/refer-to-forkpoint-config-in-rebase-doc:
Document `rebase.forkpoint` in rebase man page
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Doc update.
* gc/doc-first-contribution-reroll:
MyFirstContribution: Document --range-diff option when writing v2
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The code to re-read the edited todo list in "git rebase -i" was
made more robust.
* pw/rebase-reread-todo-after-editing:
rebase: fix todo-list rereading
sequencer.c: factor out a function
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Doc tweak.
* ew/midx-doc-update:
doc/technical: update note about core.multiPackIndex
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Code cleanup.
* ab/repo-settings-cleanup:
repository.h: don't use a mix of int and bitfields
repo-settings.c: simplify the setup
read-cache & fetch-negotiator: check "enum" values in switch()
environment.c: remove test-specific "ignore_untracked..." variable
wrapper.c: add x{un,}setenv(), and use xsetenv() in environment.c
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Code clean-up in the "grep" machinery.
* jk/grep-haystack-is-read-only:
grep: store grep_source buffer as const
grep: mark "haystack" buffers as const
grep: stop modifying buffer in grep_source_1()
grep: stop modifying buffer in show_line()
grep: stop modifying buffer in strip_timestamp
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Regression in "git commit-graph" command line parsing has been
corrected.
* tb/commit-graph-usage-fix:
builtin/multi-pack-index.c: disable top-level --[no-]progress
builtin/commit-graph.c: don't accept common --[no-]progress
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"git rebase <upstream> <tag>" failed when aborted in the middle, as
it mistakenly tried to write the tag object instead of peeling it
to HEAD.
* pw/rebase-of-a-tag-fix:
rebase: dereference tags
rebase: use lookup_commit_reference_by_name()
rebase: use our standard error return value
t3407: rework rebase --quit tests
t3407: strengthen rebase --abort tests
t3407: use test_path_is_missing
t3407: rename a variable
t3407: use test_cmp_rev
t3407: use test_commit
t3407: run tests in $TEST_DIRECTORY
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More code paths that use the hack to add submodule's object
database to the set of alternate object store have been cleaned up.
* jt/add-submodule-odb-clean-up:
revision: remove "submodule" from opt struct
repository: support unabsorbed in repo_submodule_init
submodule: remove unnecessary unabsorbed fallback
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When EDITOR is invoked to modify a commit message, it will likely
change the terminal settings, and if it misbehaves will leave the
terminal output damaged as shown in a recent report from Windows
Terminal[1]
Instead use the functions provided by compat/terminal to save the
settings and recover safely.
[1] https://github.com/microsoft/terminal/issues/9359
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, git will share its console with all its children (unless
they create their own), and is therefore possible that any of them
that might change the settings for it could affect its operations once
completed.
Refactor the platform specific functionality to save the terminal
settings and expand it to also do so for the output handler.
This will allow for the state of the terminal to be saved and
restored around a child that might misbehave (ex vi) which will
be implemented next.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When using `test_size` with `wc -c`, users on certain platforms can run
into issues when `wc` emits leading space characters in its output,
which confuses get_times.
Callers could switch to use test_file_size instead of `wc -c` (the
former never prints leading space characters, so will always work with
test_size regardless of platform), but this is an easy enough spot to
miss that we should teach get_times to be more tolerant of the input it
accepts.
Teach get_times to do just that by stripping any leading space
characters.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The man page documents that git-status can find copies, but does not
mention how. Whereas git-diff has command line options -C, there is
no such option for git-status - it will only detect copies when the
"status.renames" config option is "copies" or "copy". Document that
in git-status.txt because this has confused me and others[1].
[1]: https://www.reddit.com/r/git/comments/ppc2l9/how_to_get_a_file_with_copied_status/
Signed-off-by: Johannes Altmanninger <aclopte@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As reported in [1], T is missing from the description of porcelain
status letters in git-status(1) (whereas T *is* documented in
git-diff-files(1) and friends). Document T right after M (modified)
because the two are very similar.
[1] https://github.com/fish-shell/fish-shell/issues/8311
Signed-off-by: Johannes Altmanninger <aclopte@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Porcelain status letter T is documented as "type of the file", which
is technically correct but not enough information for users that are
not so familiar with this term from systems programming. In particular,
given that the only supported file types are "regular file", "symbolic
link" and "submodule", the term "file type" is surely opaque to the
many(?) users who are not aware that symbolic links can be tracked -
I thought that a "chmod +x" could cause the T status (wrong, it's M).
Explicitly document the three file types so users know if/how they
want to handle this.
Signed-off-by: Johannes Altmanninger <aclopte@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 176ea74793 ("wt-status.c: handle worktree renames", 2017-12-27)
made a porcelain status like .R or .C possible. They occur only when
the source file is added to the index and the destination file is
added with --intent-to-add.
They also documented DR, but that status is impossible. The index
change D means that the source file does not exist in the index.
The worktree change R/C states that the file has been renamed/copied
since the index, but that's impossible if it did not exist there.
Reported-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Johannes Altmanninger <aclopte@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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b3dfeebb92 (rebase: avoid computing unnecessary patch IDs, 2016-07-29)
added a perf test that calls tac(1) from GNU core utilities. Support
systems without it by reversing the generated list using sort -nr
instead. sort(1) with options -n and -r is already used in other tests.
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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