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Updates to how command line options to "git help" are handled.
* ab/help-fixes:
help: don't print "\n" before single-section output
help: add --no-[external-commands|aliases] for use with --all
help: error if [-a|-g|-c] and [-i|-m|-w] are combined
help: correct usage & behavior of "git help --all"
help: note the option name on option incompatibility
help.c: split up list_all_cmds_help() function
help tests: test "git" and "git help [-a|-g] spacing
help.c: use puts() instead of printf{,_ln}() for consistency
help doc: add missing "]" to "[-a|--all]"
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Remove the escape hatch we added when we introduced the weather
balloon to use variadic macros unconditionally, to make it official
that we now have a hard dependency on the feature.
* ab/c99-variadic-macros:
C99: remove hardcoded-out !HAVE_VARIADIC_MACROS code
git-compat-util.h: clarify GCC v.s. C99-specific in comment
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General clean-up in reftable implementation, including
clarification of the API documentation, tightening the code to
honor documented length limit, etc.
* hn/reftable-no-empty-keys:
reftable: rename writer_stats to reftable_writer_stats
reftable: add test for length of disambiguating prefix
reftable: ensure that obj_id_len is >= 2 on writing
reftable: avoid writing empty keys at the block layer
reftable: add a test that verifies that writing empty keys fails
reftable: reject 0 object_id_len
Documentation: object_id_len goes up to 31
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"git cat-file" learns "--batch-command" mode, which is a more
flexible interface than the existing "--batch" or "--batch-check"
modes, to allow different kinds of inquiries made.
* jc/cat-file-batch-commands:
cat-file: add --batch-command mode
cat-file: add remove_timestamp helper
cat-file: introduce batch_mode enum to replace print_contents
cat-file: rename cmdmode to transform_mode
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In sparse-checkouts, files mis-marked as missing from the working tree
could lead to later problems. Such files were hard to discover, and
harder to correct. Automatically detecting and correcting the marking
of such files has been added to avoid these problems.
* en/present-despite-skipped:
repo_read_index: add config to expect files outside sparse patterns
Accelerate clear_skip_worktree_from_present_files() by caching
Update documentation related to sparsity and the skip-worktree bit
repo_read_index: clear SKIP_WORKTREE bit from files present in worktree
unpack-trees: fix accidental loss of user changes
t1011: add testcase demonstrating accidental loss of user modifications
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Many output modes of "ls-files" do not work with its
"--recurse-submodules" option, but the "-s" mode has been taught to
work with it.
* jt/ls-files-stage-recurse:
ls-files: support --recurse-submodules --stage
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The error message given by "git switch HEAD~4" has been clarified
to suggest the "--detach" option that is required.
* ah/advice-switch-requires-detach-to-detach:
switch: mention the --detach option when dying due to lack of a branch
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Tighten the language around "working tree" and "worktree" in the
docs.
* ds/worktree-docs:
worktree: use 'worktree' over 'working tree'
worktree: use 'worktree' over 'working tree'
worktree: use 'worktree' over 'working tree'
worktree: use 'worktree' over 'working tree'
worktree: use 'worktree' over 'working tree'
worktree: use 'worktree' over 'working tree'
worktree: use 'worktree' over 'working tree'
worktree: extract checkout_worktree()
worktree: extract copy_sparse_checkout()
worktree: extract copy_filtered_worktree_config()
worktree: combine two translatable messages
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Typically with sparse checkouts, we expect files outside the sparsity
patterns to be marked as SKIP_WORKTREE and be missing from the working
tree. Sometimes this expectation would be violated however; including
in cases such as:
* users grabbing files from elsewhere and writing them to the worktree
(perhaps by editing a cached copy in an editor, copying/renaming, or
even untarring)
* various git commands having incomplete or no support for the
SKIP_WORKTREE bit[1,2]
* users attempting to "abort" a sparse-checkout operation with a
not-so-early Ctrl+C (updating $GIT_DIR/info/sparse-checkout and the
working tree is not atomic)[3].
When the SKIP_WORKTREE bit in the index did not reflect the presence of
the file in the working tree, it traditionally caused confusion and was
difficult to detect and recover from. So, in a sparse checkout, since
af6a51875a (repo_read_index: clear SKIP_WORKTREE bit from files present
in worktree, 2022-01-14), Git automatically clears the SKIP_WORKTREE
bit at index read time for entries corresponding to files that are
present in the working tree.
There is another workflow, however, where it is expected that paths
outside the sparsity patterns appear to exist in the working tree and
that they do not lose the SKIP_WORKTREE bit, at least until they get
modified. A Git-aware virtual file system[4] takes advantage of its
position as a file system driver to expose all files in the working
tree, fetch them on demand using partial clone on access, and tell Git
to pay attention to them on demand by updating the sparse checkout
pattern on writes. This means that commands like "git status" only have
to examine files that have potentially been modified, whereas commands
like "ls" are able to show the entire codebase without requiring manual
updates to the sparse checkout pattern.
Thus since af6a51875a, Git with such Git-aware virtual file systems
unsets the SKIP_WORKTREE bit for all files and commands like "git
status" have to fetch and examine them all.
Introduce a configuration setting sparse.expectFilesOutsideOfPatterns to
allow limiting the tracked set of files to a small set once again. A
Git-aware virtual file system or other application that wants to
maintain files outside of the sparse checkout can set this in a
repository to instruct Git not to check for the presence of
SKIP_WORKTREE files. The setting defaults to false, so most users of
sparse checkout will still get the benefit of an automatically updating
index to recover from the variety of difficult issues detailed in
af6a51875a for paths with SKIP_WORKTREE set despite the path being
present.
[1] https://lore.kernel.org/git/xmqqbmb1a7ga.fsf@gitster-ct.c.googlers.com/
[2] The three long paragraphs in the middle of
https://lore.kernel.org/git/CABPp-BH9tju7WVm=QZDOvaMDdZbpNXrVWQdN-jmfN8wC6YVhmw@mail.gmail.com/
[3] https://lore.kernel.org/git/CABPp-BFnFpzwGC11TLoLs8YK5yiisA5D5-fFjXnJsbESVDwZsA@mail.gmail.com/
[4] such as the vfsd described in
https://lore.kernel.org/git/20220207190320.2960362-1-jonathantanmy@google.com/
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Users who are accustomed to doing `git checkout <tag>` assume that
`git switch <tag>` will do the same thing. Inform them of the --detach
option so they aren't left wondering why `git switch` doesn't work but
`git checkout` does.
Signed-off-by: Alex Henrie <alexhenrie24@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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"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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"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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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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e77aa336f1 ("ls-files: optionally recurse into submodules", 2016-10-10)
taught ls-files the --recurse-submodules argument, but only in a limited
set of circumstances. In particular, --stage was unsupported, perhaps
because there was no repo_find_unique_abbrev(), which was only
introduced in 8bb95572b0 ("sha1-name.c: add
repo_find_unique_abbrev_r()", 2019-04-16). This function is needed for
using --recurse-submodules with --stage.
Now that we have repo_find_unique_abbrev(), teach support for this
combination of arguments.
Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add the ability to only emit git's own usage information under
--all. This also allows us to extend the "test_section_spacing" tests
added in a preceding commit to test "git help --all"
output.
Previously we could not do that, as the tests might find a git-*
command in the "$PATH", which would make the output differ from one
setup to another.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Do the same for the "--all" option that I did for "--guides" in
9856ea6785c (help: correct usage & behavior of "git help --guides",
2021-09-22). I.e. we've documented it as ignoring non-option
arguments, let's have it error out instead.
As with other changes made in 62f035aee3f (Merge branch
'ab/help-config-vars', 2021-10-13) this is technically a change in
behavior, but in practice it's just a bug fix. We were ignoring this
before, but by erroring we can simplify our documentation and
synopsis, as well as avoid user confusion as they wonder what the
difference between e.g. "git help --all" and "git help --all status"
is (there wasn't any difference).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a missing "]" to documentation added in 63eae83f8f3 (help: add "-a
--verbose" to list all commands with synopsis, 2018-05-20). This made
it seem as though "--[no-]verbose" can only be provided with "--all",
not "-a". The corresponding usage information in the C
code ("builtin_help_usage") does not have the same problem.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The value is stored in a 5-bit field, so we can't support more without
a format version upgrade.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is helpful to distinguish between a 'working tree' and a 'worktree'.
A worktree contains a working tree plus additional metadata. This
metadata includes per-worktree refs and worktree-specific config.
This is the last of multiple changes to git-worktree.txt, starting at
the LIST OUTPUT FORMAT section.
The EXAMPLES section has an instance of "working tree" that must stay as
it is, because it is not talking about a worktree, but an example of why
a user might want to create a worktree.
Helped-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is helpful to distinguish between a 'working tree' and a 'worktree'.
A worktree contains a working tree plus additional metadata. This
metadata includes per-worktree refs and worktree-specific config.
This is the sixth of multiple changes to git-worktree.txt, restricted to
the DETAILS section.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is helpful to distinguish between a 'working tree' and a 'worktree'.
A worktree contains a working tree plus additional metadata. This
metadata includes per-worktree refs and worktree-specific config.
This is the fifth of multiple changes to git-worktree.txt, restricted to
the CONFIGURATION FILE section.
While here, clear up some language to improve readability.
Helped-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is helpful to distinguish between a 'working tree' and a 'worktree'.
A worktree contains a working tree plus additional metadata. This
metadata includes per-worktree refs and worktree-specific config.
This is the fourth of multiple changes to git-worktree.txt, restricted
to the REFS section.
This section previously described "per working tree" refs but they are
now replaced with "per-worktree" refs, which matches the definition in
glossary-content.txt.
The first paragraph of this section was also a bit confusing, so it is
cleaned up to make it easier to understand.
Helped-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is helpful to distinguish between a 'working tree' and a 'worktree'.
A worktree contains a working tree plus additional metadata. This
metadata includes per-worktree refs and worktree-specific config.
This is the third of multiple changes to git-worktree.txt, restricted to
the OPTIONS section.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is helpful to distinguish between a 'working tree' and a 'worktree'.
A worktree contains a working tree plus additional metadata. This
metadata includes per-worktree refs and worktree-specific config.
This is the second of multiple changes to git-worktree.txt, restricted
to the COMMANDS section.
There is some language around the movement of "the working tree of a
linked worktree" which is used once, but the remaining uses are left as
just moving "a linked worktree" for brevity.
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is helpful to distinguish between a 'working tree' and a 'worktree'.
A worktree contains a working tree plus additional metadata. This
metadata includes per-worktree refs and worktree-specific config.
This is the first of multiple changes to git-worktree.txt, restricted to
the DESCRIPTION section.
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Remove the "else" branches of the HAVE_VARIADIC_MACROS macro, which
have been unconditionally omitted since 765dc168882 (git-compat-util:
always enable variadic macros, 2021-01-28).
Since were always omitted, anyone trying to use a compiler without
variadic macro support to compile a git since version
git v2.31.0 or later would have had a compilation error. 10 months
across a few releases since then should have been enough time for
anyone who cared to run into that and report the issue.
In addition to that, for anyone unsetting HAVE_VARIADIC_MACROS we've
been emitting extremely verbose warnings since at least
ee4512ed481 (trace2: create new combined trace facility,
2019-02-22). That's because there is no such thing as a
"region_enter_printf" or "region_leave_printf" format, so at least
under GCC and Clang everything that includes trace.h (almost every
file) emits a couple of warnings about that.
There's a large benefit to being able to have a hard dependency rely
on variadic macros, the code surrounding usage.c is hard to maintain
if we need to write two implementations of everything, and by relying
on "__FILE__" and "__LINE__" along with "__VA_ARGS__" we can in the
future make error(), die() etc. log where they were called from. We've
also recently merged d67fc4bf0ba (Merge branch 'bc/require-c99',
2021-12-10) which further cements our hard dependency on C99.
So let's delete the fallback code, and update our CodingGuidelines to
note that we depend on this. The added bullet-point starts with
lower-case for consistency with other bullet-points in that section.
The diff in "trace.h" is relatively hard to read, since we need to
retain the existing API docs, which were comments on the code used if
HAVE_VARIADIC_MACROS was not defined.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@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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"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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"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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Add a new flag --batch-command that accepts commands and arguments
from stdin, similar to git-update-ref --stdin.
At GitLab, we use a pair of long running cat-file processes when
accessing object content. One for iterating over object metadata with
--batch-check, and the other to grab object contents with --batch.
However, if we had --batch-command, we wouldn't need to keep both
processes around, and instead just have one --batch-command process
where we can flip between getting object info, and getting object
contents. Since we have a pair of cat-file processes per repository,
this means we can get rid of roughly half of long lived git cat-file
processes. Given there are many repositories being accessed at any given
time, this can lead to huge savings.
git cat-file --batch-command
will enter an interactive command mode whereby the user can enter in
commands and their arguments that get queued in memory:
<command1> [arg1] [arg2] LF
<command2> [arg1] [arg2] LF
When --buffer mode is used, commands will be queued in memory until a
flush command is issued that execute them:
flush LF
The reason for a flush command is that when a consumer process (A)
talks to a git cat-file process (B) and interactively writes to and
reads from it in --buffer mode, (A) needs to be able to control when
the buffer is flushed to stdout.
Currently, from (A)'s perspective, the only way is to either
1. kill (B)'s process
2. send an invalid object to stdin.
1. is not ideal from a performance perspective as it will require
spawning a new cat-file process each time, and 2. is hacky and not a
good long term solution.
With this mechanism of queueing up commands and letting (A) issue a
flush command, process (A) can control when the buffer is flushed and
can guarantee it will receive all of the output when in --buffer mode.
--batch-command also will not allow (B) to flush to stdout until a flush
is received.
This patch adds the basic structure for adding command which can be
extended in the future to add more commands. It also adds the following
two commands (on top of the flush command):
contents <object> LF
info <object> LF
The contents command takes an <object> argument and prints out the object
contents.
The info command takes an <object> argument and prints out the object
metadata.
These can be used in the following way with --buffer:
info <object> LF
contents <object> LF
contents <object> LF
info <object> LF
flush LF
info <object> LF
flush LF
When used without --buffer:
info <object> LF
contents <object> LF
contents <object> LF
info <object> LF
info <object> LF
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: John Cai <johncai86@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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Typofix.
* po/doc-check-ignore-markup-fix:
doc: check-ignore: code-quote an exclamation mark
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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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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Removal of unused code and doc.
* js/no-more-legacy-stash:
stash: stop warning about the obsolete `stash.useBuiltin` config setting
stash: remove documentation for `stash.useBuiltin`
add: remove support for `git-legacy-stash`
git-sh-setup: remove remnant bits referring to `git-legacy-stash`
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"git diff --diff-filter=aR" is now parsed correctly.
* js/diff-filter-negation-fix:
diff-filter: be more careful when looking for negative bits
diff.c: move the diff filter bits definitions up a bit
docs(diff): lose incorrect claim about `diff-files --diff-filter=A`
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Interaction between fetch.negotiationAlgorithm and
feature.experimental configuration variables has been corrected.
* en/fetch-negotiation-default-fix:
repo-settings: rename the traditional default fetch.negotiationAlgorithm
repo-settings: fix error handling for unknown values
repo-settings: fix checking for fetch.negotiationAlgorithm=default
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A bug that made multi-pack bitmap and the object order out-of-sync,
making the .midx data corrupt, has been fixed.
* tb/midx-bitmap-corruption-fix:
pack-bitmap.c: gracefully fallback after opening pack/MIDX
midx: read `RIDX` chunk when present
t/lib-bitmap.sh: parameterize tests over reverse index source
t5326: move tests to t/lib-bitmap.sh
t5326: extract `test_rev_exists`
t5326: drop unnecessary setup
pack-revindex.c: instrument loading on-disk reverse index
midx.c: make changing the preferred pack safe
t5326: demonstrate bitmap corruption after permutation
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"git log --remerge-diff" shows the difference from mechanical merge
result and the result that is actually recorded in a merge commit.
* en/remerge-diff:
diff-merges: avoid history simplifications when diffing merges
merge-ort: mark conflict/warning messages from inner merges as omittable
show, log: include conflict/warning messages in --remerge-diff headers
diff: add ability to insert additional headers for paths
merge-ort: format messages slightly different for use in headers
merge-ort: mark a few more conflict messages as omittable
merge-ort: capture and print ll-merge warnings in our preferred fashion
ll-merge: make callers responsible for showing warnings
log: clean unneeded objects during `log --remerge-diff`
show, log: provide a --remerge-diff capability
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Typofix.
* ll/doc-mktree-typofix:
fix typo in git-mktree.txt
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The `eol` takes effect on text files only when the index has the
contents in LF line endings. Paths with contents in CRLF line
endings in the index may become dirty unless text=auto.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.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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Update the contributor-facing documents on proposed log messages.
* jc/doc-log-messages:
SubmittingPatches: explain why we care about log messages
CodingGuidelines: hint why we value clearly written log messages
SubmittingPatches: write problem statement in the log in the present tense
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Typofix.
* gh/doc-typos:
Documentation/config/pgp.txt: add missing apostrophe
Documentation/config/pgp.txt: replace stray <TAB> character with <SPC>
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Doc and test update around the eol attribute.
* bc/clarify-eol-attr:
docs: correct documentation about eol attribute
t0027: add tests for eol without text in .gitattributes
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We have description on "per worktree ref", but "worktree" is not
described in the glossary. We do have "working tree", though.
Casually put, a "working tree" is what your editor and compiler
interacts with. "worktree" is a mechanism to allow one or more
"working tree"s to be attached to a repository and used to check out
different commits and branches independently, which includes not
just a "working tree" but also repository metadata like HEAD, the
index to support simultaneous use of them. Historically, we used
these terms interchangeably but we have been trying to use "working
tree" when we mean it, instead of "worktree".
Most of the existing references to "working tree" in the glossary do
refer primarily to the working tree portion, except for one that
said refs like HEAD and refs/bisect/* are per "working tree", but it
is more precise to say they are per "worktree".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano
Elijah Newren
Alex Henrie
Jonathan Tan
Ævar Arnfjörð Bjarmason
Han-Wen Nienhuys
Derrick Stolee
John Cai
brian m. carlson