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The End of Index Entry (EOIE) is used to locate the end of the variable
length index entries and the beginning of the extensions. Code can take
advantage of this to quickly locate the index extensions without having
to parse through all of the index entries.
The EOIE extension is always written out to the index file including to
the shared index when using the split index feature. Because it is always
written out, the SHA checksums in t/t1700-split-index.sh were updated
to reflect its inclusion.
It is written as an optional extension to ensure compatibility with other
git implementations that do not yet support it. It is always written out
to ensure it is available as often as possible to speed up index operations.
Because it must be able to be loaded before the variable length cache
entries and other index extensions, this extension must be written last.
The signature for this extension is { 'E', 'O', 'I', 'E' }.
The extension consists of:
- 32-bit offset to the end of the index entries
- 160-bit SHA-1 over the extension types and their sizes (but not
their contents). E.g. if we have "TREE" extension that is N-bytes
long, "REUC" extension that is M-bytes long, followed by "EOIE",
then the hash would be:
SHA-1("TREE" + <binary representation of N> +
"REUC" + <binary representation of M>)
Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git update-ref" learned to make both "--no-deref" and "--stdin"
work at the same time.
* en/update-ref-no-deref-stdin:
update-ref: allow --no-deref with --stdin
update-ref: fix type of update_flags variable to match its usage
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Doc fix.
* bw/protocol-v2:
config: document value 2 for protocol.version
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The rules used by "git push" and "git fetch" to determine if a ref
can or cannot be updated were inconsistent; specifically, fetching
to update existing tags were allowed even though tags are supposed
to be unmoving anchoring points. "git fetch" was taught to forbid
updates to existing tags without the "--force" option.
This is a backward incompatible change but in a good way; it may
still need to be treated carefully.
* ab/fetch-tags-noclobber:
fetch doc: correct grammar in --force docs
push doc: add spacing between two words
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"git checkout -b newbranch [HEAD]" should not have to do as much as
checking out a commit different from HEAD. An attempt is made to
optimize this special case.
* bp/checkout-new-branch-optim:
config doc: add missing list separator for checkout.optimizeNewBranch
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Correct a grammar error (saying "the receiving" made no sense) in the
recently landed documentation added in my 0bc8d71b99 ("fetch: stop
clobbering existing tags without --force", 2018-08-31) by rephrasing
the sentence. Also correct 'fetching work the same way' by s/work/&s/;
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a formatting error introduced in my recently landed
fe802bd21e ("push doc: correct lies about how push refspecs work",
2018-08-31).
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The documentation added in fa655d8411 ("checkout: optimize "git
checkout -b <new_branch>"", 2018-08-16) didn't add the double-colon
needed for the labeled list separator, as a result the added
documentation all got squashed into one paragraph. Fix that by adding
the list separator.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The rules used by "git push" and "git fetch" to determine if a ref
can or cannot be updated were inconsistent; specifically, fetching
to update existing tags were allowed even though tags are supposed
to be unmoving anchoring points. "git fetch" was taught to forbid
updates to existing tags without the "--force" option.
* ab/fetch-tags-noclobber:
fetch: stop clobbering existing tags without --force
fetch: document local ref updates with/without --force
push doc: correct lies about how push refspecs work
push doc: move mention of "tag <tag>" later in the prose
push doc: remove confusing mention of remote merger
fetch tests: add a test for clobbering tag behavior
push tests: use spaces in interpolated string
push tests: make use of unused $1 in test description
fetch: change "branch" to "reference" in --force -h output
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Fix a bug in which the same path could be registered under multiple
worktree entries if the path was missing (for instance, was removed
manually). Also, as a convenience, expand the number of cases in
which --force is applicable.
* es/worktree-forced-ops-fix:
doc-diff: force worktree add
worktree: delete .git/worktrees if empty after 'remove'
worktree: teach 'remove' to override lock when --force given twice
worktree: teach 'move' to override lock when --force given twice
worktree: teach 'add' to respect --force for registered but missing path
worktree: disallow adding same path multiple times
worktree: prepare for more checks of whether path can become worktree
worktree: generalize delete_git_dir() to reduce code duplication
worktree: move delete_git_dir() earlier in file for upcoming new callers
worktree: don't die() in library function find_worktree()
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Docfix.
* sg/doc-trace-appends:
Documentation/git.txt: clarify that GIT_TRACE=/path appends
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Dev doc update.
* jk/diff-rendered-docs:
Revert "doc/Makefile: drop doc-diff worktree and temporary files on "make clean""
doc/Makefile: drop doc-diff worktree and temporary files on "make clean"
doc-diff: add --clean mode to remove temporary working gunk
doc-diff: fix non-portable 'man' invocation
doc-diff: always use oids inside worktree
SubmittingPatches: mention doc-diff
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Clarify a part of technical documentation for rerere.
* tg/rerere-doc-updates:
rerere: add note about files with existing conflict markers
rerere: mention caveat about unmatched conflict markers
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"git format-patch" learned a new "--range-diff" option to explain
the difference between this version and the previous attempt in
the cover letter (or after the tree-dashes as a comment).
* es/format-patch-rangediff:
format-patch: allow --range-diff to apply to a lone-patch
format-patch: add --creation-factor tweak for --range-diff
format-patch: teach --range-diff to respect -v/--reroll-count
format-patch: extend --range-diff to accept revision range
format-patch: add --range-diff option to embed diff in cover letter
range-diff: relieve callers of low-level configuration burden
range-diff: publish default creation factor
range-diff: respect diff_option.file rather than assuming 'stdout'
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"git format-patch" learned a new "--interdiff" option to explain
the difference between this version and the previous atttempt in
the cover letter (or after the tree-dashes as a comment).
* es/format-patch-interdiff:
format-patch: allow --interdiff to apply to a lone-patch
log-tree: show_log: make commentary block delimiting reusable
interdiff: teach show_interdiff() to indent interdiff
format-patch: teach --interdiff to respect -v/--reroll-count
format-patch: add --interdiff option to embed diff in cover letter
format-patch: allow additional generated content in make_cover_letter()
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Lift code from GitHub to restrict delta computation so that an
object that exists in one fork is not made into a delta against
another object that does not appear in the same forked repository.
* cc/delta-islands:
pack-objects: move 'layer' into 'struct packing_data'
pack-objects: move tree_depth into 'struct packing_data'
t5320: tests for delta islands
repack: add delta-islands support
pack-objects: add delta-islands support
pack-objects: refactor code into compute_layer_order()
Add delta-islands.{c,h}
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"git interpret-trailers" and its underlying machinery had a buggy
code that attempted to ignore patch text after commit log message,
which triggered in various codepaths that will always get the log
message alone and never get such an input.
* jk/trailer-fixes:
append_signoff: use size_t for string offsets
sequencer: ignore "---" divider when parsing trailers
pretty, ref-filter: format %(trailers) with no_divider option
interpret-trailers: allow suppressing "---" divider
interpret-trailers: tighten check for "---" patch boundary
trailer: pass process_trailer_opts to trailer_info_get()
trailer: use size_t for iterating trailer list
trailer: use size_t for string offsets
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Fixes to "git rerere" corner cases, especially when conflict
markers cannot be parsed in the file.
* tg/rerere:
rerere: recalculate conflict ID when unresolved conflict is committed
rerere: teach rerere to handle nested conflicts
rerere: return strbuf from handle path
rerere: factor out handle_conflict function
rerere: only return whether a path has conflicts or not
rerere: fix crash with files rerere can't handle
rerere: add documentation for conflict normalization
rerere: mark strings for translation
rerere: wrap paths in output in sq
rerere: lowercase error messages
rerere: unify error messages when read_cache fails
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When there are too many packfiles in a repository (which is not
recommended), looking up an object in these would require
consulting many pack .idx files; a new mechanism to have a single
file that consolidates all of these .idx files is introduced.
* ds/multi-pack-index: (32 commits)
pack-objects: consider packs in multi-pack-index
midx: test a few commands that use get_all_packs
treewide: use get_all_packs
packfile: add all_packs list
midx: fix bug that skips midx with alternates
midx: stop reporting garbage
midx: mark bad packed objects
multi-pack-index: store local property
multi-pack-index: provide more helpful usage info
midx: clear midx on repack
packfile: skip loading index if in multi-pack-index
midx: prevent duplicate packfile loads
midx: use midx in approximate_object_count
midx: use existing midx when writing new one
midx: use midx in abbreviation calculations
midx: read objects from multi-pack-index
config: create core.multiPackIndex setting
midx: write object offsets
midx: write object id fanout chunk
midx: write object ids in a chunk
...
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Updated plan to repurpose the "-l" option to "git branch".
* jk/branch-l-1-repurpose:
doc/git-branch: remove obsolete "-l" references
branch: make "-l" a synonym for "--list"
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Build tweak.
* ts/doc-build-manpage-xsl-quietly:
Documentation/Makefile: make manpage-base-url.xsl generation quieter
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"git checkout -b newbranch [HEAD]" should not have to do as much as
checking out a commit different from HEAD. An attempt is made to
optimize this special case.
* bp/checkout-new-branch-optim:
checkout: optimize "git checkout -b <new_branch>"
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clean""
This reverts commit 6f924265a0bf6efa677e9a684cebdde958e5ba06, which
started to require that we have an executable git available in order
to say "make clean", which gives us a chicken-and-egg problem.
Having to have Git installed, or be in a repository, in order to be
able to run an optional "doc-diff" tool is fine. Requiring either
in order to run "make clean" is a different story.
Reported by Jonathan Nieder <jrnieder@gmail.com>.
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If passed both --no-deref and --stdin, update-ref would error out with a
general usage message that did not at all suggest these options were
incompatible. The manpage for update-ref did suggest through its
synopsis line that --no-deref and --stdin were incompatible, but it sadly
also incorrectly suggested that -d and --no-deref were incompatible. So
the help around the --no-deref option is buggy in a few ways.
The --stdin option did provide a different mechanism for avoiding
dereferencing symbolic-refs: adding a line reading
option no-deref
before every other directive in the input. (Technically, if the user
wants to do the extra work of first determining which refs they want to
update or delete are symbolic, then they only need to put the extra
"option no-deref" lines before the updates of those refs. But in some
cases, that's more work than just adding the "option no-deref" before
every other directive.)
It's easier to allow the user to just pass --no-deref along with --stdin
in order to tell update-ref that the user doesn't want any symbolic ref
to be dereferenced. It also makes the update-ref documentation simpler.
Implement that, and update the documentation to match.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Update the config documentation to note the value `2` as an acceptable
value for the protocol.version config.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Reviewed-by: Jonathan Nieder <jrnieder@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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We avoid re-creating our temporary worktree if it's already
there. But we may run into a situation where the worktree
has been deleted, but an entry still exists in
$GIT_DIR/worktrees.
Older versions of git-worktree would annoyingly create a
series of duplicate entries. Recent versions now detect and
prevent this, allowing you to override with "-f". Since we
know that the worktree in question was just our temporary
workspace, it's safe for us to always pass "-f".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The current wording of the description of GIT_TRACE=/path/to/file
("... will try to write the trace messages into it") might be
misunderstood as "overwriting"; at least I interpreted it that way on
a cursory first read.
State it more explicitly that the trace messages are appended.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Change "fetch" to treat "+" in refspecs (aka --force) to mean we
should clobber a local tag of the same name.
This changes the long-standing behavior of "fetch" added in
853a3697dc ("[PATCH] Multi-head fetch.", 2005-08-20). Before this
change, all tag fetches effectively had --force enabled. See the
git-fetch-script code in fast_forward_local() with the comment:
> Tags need not be pointing at commits so there is no way to
> guarantee "fast-forward" anyway.
That commit and the rest of the history of "fetch" shows that the
"+" (--force) part of refpecs was only conceived for branch updates,
while tags have accepted any changes from upstream unconditionally and
clobbered the local tag object. Changing this behavior has been
discussed as early as 2011[1].
The current behavior doesn't make sense to me, it easily results in
local tags accidentally being clobbered. We could namespace our tags
per-remote and not locally populate refs/tags/*, but as with my
97716d217c ("fetch: add a --prune-tags option and fetch.pruneTags
config", 2018-02-09) it's easier to work around the current
implementation than to fix the root cause.
So this change implements suggestion #1 from Jeff's 2011 E-Mail[1],
"fetch" now only clobbers the tag if either "+" is provided as part of
the refspec, or if "--force" is provided on the command-line.
This also makes it nicely symmetrical with how "tag" itself works when
creating tags. I.e. we refuse to clobber any existing tags unless
"--force" is supplied. Now we can refuse all such clobbering, whether
it would happen by clobbering a local tag with "tag", or by fetching
it from the remote with "fetch".
Ref updates outside refs/{tags,heads/* are still still not symmetrical
with how "git push" works, as discussed in the recently changed
pull-fetch-param.txt documentation. This change brings the two
divergent behaviors more into line with one another. I don't think
there's any reason "fetch" couldn't fully converge with the behavior
used by "push", but that's a topic for another change.
One of the tests added in 31b808a032 ("clone --single: limit the fetch
refspec to fetched branch", 2012-09-20) is being changed to use
--force where a clone would clobber a tag. This changes nothing about
the existing behavior of the test.
1. https://public-inbox.org/git/20111123221658.GA22313@sigill.intra.peff.net/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refer to the new git-push(1) documentation about when ref updates are
and aren't allowed with and without --force, noting how "git-fetch"
differs from the behavior of "git-push".
Perhaps it would be better to split this all out into a new
gitrefspecs(7) man page, or present this information using tables.
In lieu of that, this is accurate, and fixes a big omission in the
existing refspec docs.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's complex rules governing whether a push is allowed to take
place depending on whether we're pushing to refs/heads/*, refs/tags/*
or refs/not-that/*. See is_branch() in refs.c, and the various
assertions in refs/files-backend.c. (e.g. "trying to write non-commit
object %s to branch '%s'").
This documentation has never been quite correct, but went downhill
after dbfeddb12e ("push: require force for refs under refs/tags/",
2012-11-29) when we started claiming that <dst> couldn't be a tag
object, which is incorrect. After some of the logic in that patch was
changed in 256b9d70a4 ("push: fix "refs/tags/ hierarchy cannot be
updated without --force"", 2013-01-16) the docs weren't updated, and
we've had some version of documentation that confused whether <src>
was a tag or not with whether <dst> would accept either an annotated
tag object or the commit it points to.
This makes the intro somewhat more verbose & complex, perhaps we
should have a shorter description here and split the full complexity
into a dedicated section. Very few users will find themselves needing
to e.g. push blobs or trees to refs/custom-namespace/* (or blobs or
trees at all), and that could be covered separately as an advanced
topic.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This change will be followed-up with a subsequent change where I'll
change both sides of this mention of "tag <tag>" to be something
that's best read without interruption.
To make that change smaller, let's move this mention of "tag <tag>" to
the end of the "<refspec>..." section, it's now somewhere in the
middle.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Saying that "git push <remote> <src>:<dst>" won't push a merger of
<src> and <dst> to <dst> is clear from the rest of the context here,
so mentioning it is redundant, furthermore the mention of "EXAMPLES
below" isn't specific or useful.
This phrase was originally added in 149f6ddfb3 ("Docs: Expand
explanation of the use of + in git push refspecs.", 2009-02-19), as
can be seen in that change the point of the example being cited was to
show that force pushing can leave unreferenced commits on the
remote. It's enough that we explain that in its own section, it
doesn't need to be mentioned here.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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doc-diff creates a temporary working tree (git-worktree) and generates a
bunch of temporary files which it does not remove since they act as a
cache to speed up subsequent runs. Although doc-diff's working tree and
generated files are not strictly build products of the Makefile (which,
itself, never runs doc-diff), as a convenience, update "make clean" to
clean up doc-diff's working tree and generated files along with other
development detritus normally removed by "make clean".
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As part of its operation, doc-diff creates a bunch of temporary
working files and holds onto them in order to speed up subsequent
invocations. These files are never deleted. Moreover, it creates a
temporary working tree (via git-wortkree) which likewise never gets
removed.
Without knowing the implementation details of the tool, a user may not
know how to clean up manually afterward. Worse, the user may find it
surprising and alarming to discover a working tree which s/he did not
create explicitly.
To address these issues, add a --clean mode which removes the
temporary working tree and deletes all generated files.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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doc-diff invokes 'man' with the -l option to force "local" mode,
however, neither MacOS nor FreeBSD recognize this option. On those
platforms, if the argument to 'man' contains a slash, it is
automatically interpreted as a file specification, so a "local"-like
mode is not needed. And, it turns out, 'man' which does support -l
falls back to enabling -l automatically if it can't otherwise find a
manual entry corresponding to the argument. Since doc-diff always
passes an absolute path of the nroff source file to 'man', the -l
option kicks in anyhow, despite not being specified explicitly.
Therefore, make the invocation portable to the various platforms by
simply dropping -l.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The previous commit switched "-l" to meaning "--list", but a
few vestiges of its prior meaning as "--create-reflog"
remained:
- the synopsis mentioned "-l" when creating a new branch;
we can drop this entirely, as it has been the default
for years
- the --list command mentions the unfortunate "-l"
confusion, but we've now fixed that
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The doc-diff script immediately resolves its two endpoints
to actual object ids, so that we can reuse cached results
even if they appear under a different name. But we still use
the original name the user fed us when running "git
checkout" in our temporary worktree. This can lead to
confusing results:
- the namespace inside the worktree is different than the
one outside. In particular, "./doc-diff origin HEAD"
will resolve HEAD inside the worktree, whose detached
HEAD will be pointing at origin! As a result, such a
diff would always be empty.
- worse, we will store this result under the oid we got by
resolving HEAD in the main worktree, thus polluting our
cache
- we didn't pass --detach, which meant that using a branch
name would cause us to actually check out that branch,
making it unavailable to other worktrees.
We can solve this by feeding the already-resolved object id
to git-checkout. That naturally forces a detached HEAD, but
just to make clear our expectation, let's explicitly pass
--detach.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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For consistency with "add -f -f" and "move -f -f" which override
the lock on a worktree, allow "remove -f -f" to do so, as well, as a
convenience.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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For consistency with "add -f -f", which allows a missing but locked
worktree path to be re-used, allow "move -f -f" to override a lock,
as well, as a convenience.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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For safety, "git worktree add <path>" will refuse to add a new
worktree at <path> if <path> is already associated with a worktree
entry, even if <path> is missing (for instance, has been deleted or
resides on non-mounted removable media or network share). The typical
way to re-create a worktree at <path> in such a situation is either to
prune all "broken" entries ("git worktree prune") or to selectively
remove the worktree entry manually ("git worktree remove <path>").
However, neither of these approaches ("prune" nor "remove") is
especially convenient, and they may be unsuitable for scripting when a
tool merely wants to re-use a worktree if it exists or create it from
scratch if it doesn't (much as a tool might use "mkdir -p" to re-use
or create a directory).
Therefore, teach 'add' to respect --force as a convenient way to
re-use a path already associated with a worktree entry if the path is
non-existent. For a locked worktree, require --force to be specified
twice.
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The exact sed command to generate manpage-base-url.xsl appears in
the output, unlike the rules for other files that by default only
show summary.
Make the output for this rule similiar to all the other rules by
printing a short status message instead of the whole command.
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When a file contains lines that look like conflict markers, 'git
rerere' may fail not be able to record a conflict resolution.
Emphasize that in the man page, and mention a possible workaround for
the issue.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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4af3220 ("rerere: teach rerere to handle nested conflicts",
2018-08-05) introduced slightly better behaviour if the user commits
conflict markers and then gets another conflict in 'git rerere'.
However this is just a heuristic to punt on such conflicts better, and
doesn't deal with any unmatched conflict markers. Make that clearer
in the documentation.
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Thomas Gummerer <t.gummerer@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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Finishing touches to doc.
* ds/commit-graph-fsck:
config: fix commit-graph related config docs
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"git help --config" (which is used in command line completion)
missed the configuration variables not described in the main
config.txt file but are described in another file that is included
by it, which has been corrected.
* nd/complete-config-vars:
generate-cmdlist.sh: collect config from all config.txt files
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"git worktree" command learned "--quiet" option to make it less
verbose.
* ep/worktree-quiet-option:
worktree: add --quiet option
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"git branch --list" learned to take the default sort order from the
'branch.sort' configuration variable, just like "git tag --list"
pays attention to 'tag.sort'.
* sm/branch-sort-config:
branch: support configuring --sort via .gitconfig
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Ben Peart
Junio C Hamano
Ævar Arnfjörð Bjarmason
Elijah Newren
Brandon Williams
Jeff King
SZEDER Gábor
Eric Sunshine
Tim Schumacher
Thomas Gummerer