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* tr/reset-checkout-patch:
stash: simplify defaulting to "save" and reject unknown options
Make test case number unique
tests: disable interactive hunk selection tests if perl is not available
DWIM 'git stash save -p' for 'git stash -p'
Implement 'git stash save --patch'
Implement 'git checkout --patch'
Implement 'git reset --patch'
builtin-add: refactor the meat of interactive_add()
Add a small patch-mode testing library
git-apply--interactive: Refactor patch mode code
Make 'git stash -k' a short form for 'git stash save --keep-index'
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git branch, checkout, clean, mv and tag all have an option -f to override
certain checks. This patch makes them accept the long option --force as
a synonym.
While we're at it, document that checkout support --quiet as synonym for
its short option -q.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jk/maint-1.6.3-checkout-unborn:
checkout: do not imply "-f" on unborn branches
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When checkout sees that HEAD points to a non-existent ref,
it currently acts as if "-f" was given; this behavior dates
back to 5a03e7f, which enabled checkout from unborn branches
in the shell version of "git-checkout". The reasoning given
is to avoid the code path which tries to merge the tree
contents. When checkout was converted to C, this code
remained intact.
The unfortunate side effect of this strategy is that the
"force" code path will overwrite working tree and index
state that may be precious to the user. Instead of enabling
"force", this patch uses the normal "merge" codepath for an
unborn branch, but substitutes the empty tree for the "old"
commit.
This means that in the absence of an index, any files in the
working tree will be treated as untracked files, and a
checkout which would overwrite them is aborted. Similarly,
any paths in the index will be merged with an empty entry
as the base, meaning that unless the new branch's content is
identical to what's in the index, there will be a conflict
and the checkout will be aborted.
The user is then free to correct the situation or proceed
with "-f" as appropriate.
This patch also removes the "warning: you are on a branch
yet to be born" message. Its function was to warn the user
that we were enabling the "-f" option. Since we are no
longer doing that, there is no reason for the user to care
whether we are switching away from an unborn branch.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This introduces a --patch mode for git-checkout. In the index usage
git checkout --patch -- [files...]
it lets the user discard edits from the <files> at the granularity of
hunks (by selecting hunks from 'git diff' and then reverse applying
them to the worktree).
We also accept a revision argument. In the case
git checkout --patch HEAD -- [files...]
we offer hunks from the difference between HEAD and the worktree, and
reverse applies them to both index and worktree, allowing you to
discard staged changes completely. In the non-HEAD usage
git checkout --patch <revision> -- [files...]
it offers hunks from the difference between the worktree and
<revision>. The chosen hunks are then applied to both index and
worktree.
The application to worktree and index is done "atomically" in the
sense that we first check if the patch applies to the index (it should
always apply to the worktree). If it does not, we give the user a
choice to either abort or apply to the worktree anyway.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* lt/maint-diff-reduce-lstat:
Teach 'git checkout' to preload the index contents
Avoid unnecessary 'lstat()' calls in 'get_stat_data()'
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To give OPT_FILENAME the prefix, we pass the prefix to parse_options()
which passes the prefix to parse_options_start() which sets the prefix
member of parse_opts_ctx accordingly. If there isn't a prefix in the
calling context, passing NULL will suffice.
Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* lt/maint-diff-reduce-lstat:
Teach 'git checkout' to preload the index contents
Avoid unnecessary 'lstat()' calls in 'get_stat_data()'
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Previously, checkout would tell the user this message before moving HEAD,
without regard to whether the upcoming move will result in success.
If the move failed, this causes confusion.
Show the message after the move, unless the move failed.
Signed-off-by: Daniel Cordero <theappleman@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint-1.6.2:
Revert "checkout branch: prime cache-tree fully"
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The logic in 83ae209 (checkout branch: prime cache-tree fully,
2009-04-20) is bogus; checkout can switch branches with a dirty
index and in such a case the tree won't match HEAD.
Add t2014-switch to catch this breakage.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This makes git checkout know to use the threaded index preloading if it
is enabled in the config file. You need to have
[core]
preloadindex = true
in your config file to see it, and for that feature to make sense your
filesystem needs to be able to do concurrent 'lstat()' lookups, but when
that is the case (especially NFS over a high-latency network), this can
be a noticeable performance win.
But with a low-latency network and at least older Linux NFS clients, this
will clearly potentially cause a lot of lock contention. It may still
speed up the uncached case, but the threading and locking overhead will
result in the cached case likely slowing down.
That was almost certainly fixed by Linux commit fc0f684c2 ("NFS: Remove
BKL from NFS lookup code"), but that one got merged into 2.6.27-rc1, so
older kernel versions than 2.6.27 will not scale very well.
But regardless, it's the right thing to do. If your filesystem doesn't
scale, don't enable index preloading.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/maint-read-tree-multi:
checkout branch: prime cache-tree fully
read-tree -m A B: prime cache-tree from the switched-to tree
Move prime_cache_tree() to cache-tree.c
read-tree A B: do not corrupt cache-tree
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Signed-off-by: Mike Ralphson <mike@abacus.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When switching to another branch, the earlier code relied on incremental
invalidation of cache-tree entries to degrade it. While it is not wrong
per-se, we know that the resulting index must fully match the branch we
are switching to unless the -m (merge) option is used.
We should simply fully re-prime the cache-tree using the new tree object
in such a case. And for safety, invalidate the cache-tree as a whole in
other cases.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The interface to build cache-tree belongs there.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/maint-submodule-checkout:
Fix 'git checkout <submodule>' to update the index
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* maint:
Change double quotes to single quotes in message
Documentation: clarify .gitattributes search
git-checkout.txt: clarify that <branch> applies when no path is given.
git-checkout.txt: fix incorrect statement about HEAD and index
Conflicts:
Documentation/git-checkout.txt
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Most of the time when we give branch name in the message, we quote it
inside a pair of single-quotes. git-checkout uses double-quotes; this
patch corrects the inconsistency.
Signed-off-by: Jari Aalto <jari.aalto@cante.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* js/maint-submodule-checkout:
Fix 'git checkout <submodule>' to update the index
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* jc/name-branch:
Don't permit ref/branch names to end with ".lock"
check_ref_format(): tighten refname rules
strbuf_check_branch_ref(): a helper to check a refname for a branch
Fix branch -m @{-1} newname
check-ref-format --branch: give Porcelain a way to grok branch shorthand
strbuf_branchname(): a wrapper for branch name shorthands
Rename interpret/substitute nth_last_branch functions
Conflicts:
Documentation/git-check-ref-format.txt
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While 'git checkout <submodule>' should not update the submodule's
working directory, it should update the index. This is in line with
how submodules are handled in the rest of Git.
While at it, test 'git reset [<commit>] <submodule>', too.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This allows a common calling sequence
strbuf_branchname(&ref, name);
strbuf_splice(&ref, 0, 0, "refs/heads/", 11);
if (check_ref_format(ref.buf))
die(...);
to be refactored into
if (strbuf_check_branch_ref(&ref, name))
die(...);
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function takes a user-supplied string that is supposed to be a branch
name, and puts it in a strbuf after expanding possible shorthand notation.
A handful of open coded sequence to do this in the existing code have been
changed to use this helper function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These allow you to say "git checkout @{-2}" to switch to the branch two
"branch switching" ago by pretending as if you typed the name of that
branch. As it is likely that we will be introducing more short-hands to
write the name of a branch without writing it explicitly, rename the
functions from "nth_last_branch" to more generic "branch_name", to prepare
for different semantics.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mv/parseopt-ls-files:
ls-files: fix broken --no-empty-directory
t3000: use test_cmp instead of diff
parse-opt: migrate builtin-ls-files.
Turn the flags in struct dir_struct into a single variable
Conflicts:
builtin-ls-files.c
t/t3000-ls-files-others.sh
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Code that calls diff_setup(), including via init_revisions(), should later call
diff_setup_done(), possibly via setup_revisions(). Failure to do so could cause
errors, especially in the future when we add responsibilities to
diff_setup_done(). This instance causes no known errors with the present code.
But it resulted in an error with an experimental patch.
Signed-off-by: Keith Cascio <keith@cs.ucla.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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By having flags represented as bits in the new member variable 'flags',
it will be easier to use parse_options when dir_struct is involved.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* tr/previous-branch:
t1505: remove debugging cruft
Simplify parsing branch switching events in reflog
Introduce for_each_recent_reflog_ent().
interpret_nth_last_branch(): plug small memleak
Fix reflog parsing for a malformed branch switching entry
Fix parsing of @{-1}@{1}
interpret_nth_last_branch(): avoid traversing the reflog twice
checkout: implement "-" abbreviation, add docs and tests
sha1_name: support @{-N} syntax in get_sha1()
sha1_name: tweak @{-N} lookup
checkout: implement "@{-N}" shortcut name for N-th last branch
Conflicts:
sha1_name.c
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* cb/add-pathspec:
remove pathspec_match, use match_pathspec instead
clean up pathspec matching
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Have '-' mean the same as '@{-1}', i.e., the last branch we were on.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Have the lookup only look at "interesting" checkouts, meaning those
that tell you "Already on ..." don't count even though they also cause
a reflog entry.
Let interpret_nth_last_branch() return the number of characters
parsed, so that git-checkout can verify that the branch spec was
@{-N}, not @{-1}^2 or something like that. (The latter will be added
later.)
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Implement a shortcut @{-N} for the N-th last branch checked out, that
works by parsing the reflog for the message added by previous
git-checkout invocations. We expand the @{-N} to the branch name, so
that you end up on an attached HEAD on that branch.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A function that runs a hook is used in several Git commands.
builtin-commit.c has the one that is most general for cases without
piping. The one in builtin-gc.c prints some useful warnings.
This patch moves a merged version of these variants into libgit and
lets the other builtins use this libified run_hook().
The run_hook() function used in receive-pack.c feeds the standard
input of the pre-receive or post-receive hooks. This function is
renamed to run_receive_hook() because the libified run_hook() cannot
handle this.
Mentored-by: Daniel Barkalow <barkalow@iabervon.org>
Mentored-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the case of
git init
echo exit >.git/hooks/post-checkout
chmod +x .git/hooks/post-checkout
touch foo
git add foo
rm foo
git checkout -- foo
git-checkout resulted in a Segmentation fault, because there is no new
branch set for the post-checkout hook.
This patch makes use of the null SHA as it is set for the old branch.
While at it, I removed the xstrdup() around the sha1_to_hex(...) calls
in builtin-checkout.c/post_checkout_hook() because sha1_to_hex()
uses four buffers for the hex-dumped SHA and we only need two.
(Duplicating one buffer is only needed if we need more than four.)
Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Both versions have the same functionality. This removes any
redundancy.
This also adds makes two extensions to match_pathspec:
- If pathspec is NULL, return 1. This reflects the behavior of git
commands, for which no paths usually means "match all paths".
- If seen is NULL, do not use it.
Signed-off-by: Clemens Buchacher <drizzd@aon.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/maint-do-not-switch-to-non-commit:
git checkout: do not allow switching to a tree-ish that is not a commit
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* jc/maint-do-not-switch-to-non-commit:
git checkout: do not allow switching to a tree-ish that is not a commit
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"git checkout -b newbranch $commit^{tree}" mistakenly created a new branch
rooted at the current HEAD, because in that case, the two structure fields
used to see if the command was invoked without any argument (hence it
needs to default to checking out the HEAD) were populated incorrectly.
Upon seeing a command line argument that we took as a rev, we should store
that string in new.name, even if that does not name a commit. This will
correctly trigger the existing safety logic.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Daniel Barkalow <barkalow@iabervon.org>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
sha1_file.c: resolve confusion EACCES vs EPERM
sha1_file: avoid bogus "file exists" error message
git checkout: don't warn about unborn branch if -f is already passed
bash: offer refs instead of filenames for 'git revert'
bash: remove dashed command leftovers
git-p4: fix keyword-expansion regex
fast-export: use an unsorted string list for extra_refs
Add new testcase to show fast-export does not always exports all tags
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I think it's unnecessary to warn that the checkout has been forced due to an
unborn current branch if -f has been explicitly passed. For one project, I am
using git-new-workdir to create workdirs from a bare repository whose HEAD is
set to an unborn branch, and this warning started to irritate me.
Signed-off-by: Matt McCutchen <matt@mattmccutchen.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
Start 1.6.0.5 cycle
Fix pack.packSizeLimit and --max-pack-size handling
checkout: Fix "initial checkout" detection
Remove the period after the git-check-attr summary
Conflicts:
RelNotes
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Earlier commit 5521883 (checkout: do not lose staged removal, 2008-09-07)
tightened the rule to prevent switching branches from losing local
changes, so that staged removal of paths can be protected, while
attempting to keep a loophole to still allow a special case of switching
out of an un-checked-out state.
However, the loophole was made a bit too tight, and did not allow
switching from one branch (in an un-checked-out state) to check out
another branch.
The change to builtin-checkout.c in this commit loosens it to allow this,
by not insisting the original commit and the new commit to be the same.
It also introduces a new function, is_index_unborn (and an associated
macro, is_cache_unborn), to check if the repository is truly in an
un-checked-out state more reliably, by making sure that $GIT_INDEX_FILE
did not exist when populating the in-core index structure. A few places
the earlier commit 5521883 added the check for the initial checkout
condition are updated to use this function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
Documentation: bisect: change a few instances of "git-cmd" to "git cmd"
Documentation: rev-list: change a few instances of "git-cmd" to "git cmd"
checkout: Don't crash when switching away from an invalid branch.
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When using alternates, it is possible for HEAD to end up pointing to
an invalid commit. git checkout should be able to recover from that
situation without crashing.
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The code to complain when -b is not given but an explicit --track/--no-track
override was given from the command line was unchanged on one branch and
reworked on the other branch. The merge result incorrectly kept it.
Spotted by Matt McCutchen.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* db/maint-checkout-b:
Check early that a new branch is new and valid
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Many call sites use strbuf_init(&foo, 0) to initialize local
strbuf variable "foo" which has not been accessed since its
declaration. These can be replaced with a static initialization
using the STRBUF_INIT macro which is just as readable, saves a
function call, and takes up fewer lines.
Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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