mirror of
https://github.com/git/git
synced 2024-08-27 19:49:21 +00:00
![Shawn O. Pearce](/assets/img/avatar_default.png)
git-stash needs to restrict itself to plumbing when running automated diffs as part of its operation as the user may have configured a custom diff driver that opens an interactive UI for certain/all files. Doing that during scripted actions is very unfriendly to the end-user and may cause git-stash to fail to work. Reported by Johannes Sixt Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
216 lines
4.5 KiB
Bash
Executable file
216 lines
4.5 KiB
Bash
Executable file
#!/bin/sh
|
|
# Copyright (c) 2007, Nanako Shiraishi
|
|
|
|
USAGE='[ | list | show | apply | clear]'
|
|
|
|
SUBDIRECTORY_OK=Yes
|
|
. git-sh-setup
|
|
require_work_tree
|
|
cd_to_toplevel
|
|
|
|
TMP="$GIT_DIR/.git-stash.$$"
|
|
trap 'rm -f "$TMP-*"' 0
|
|
|
|
ref_stash=refs/stash
|
|
|
|
no_changes () {
|
|
git diff-index --quiet --cached HEAD &&
|
|
git diff-files --quiet
|
|
}
|
|
|
|
clear_stash () {
|
|
if current=$(git rev-parse --verify $ref_stash 2>/dev/null)
|
|
then
|
|
git update-ref -d refs/stash $current
|
|
fi
|
|
}
|
|
|
|
save_stash () {
|
|
stash_msg="$1"
|
|
|
|
if no_changes
|
|
then
|
|
echo >&2 'No local changes to save'
|
|
exit 0
|
|
fi
|
|
test -f "$GIT_DIR/logs/$ref_stash" ||
|
|
clear_stash || die "Cannot initialize stash"
|
|
|
|
# Make sure the reflog for stash is kept.
|
|
: >>"$GIT_DIR/logs/$ref_stash"
|
|
|
|
# state of the base commit
|
|
if b_commit=$(git rev-parse --verify HEAD)
|
|
then
|
|
head=$(git log --abbrev-commit --pretty=oneline -n 1 HEAD)
|
|
else
|
|
die "You do not have the initial commit yet"
|
|
fi
|
|
|
|
if branch=$(git symbolic-ref -q HEAD)
|
|
then
|
|
branch=${branch#refs/heads/}
|
|
else
|
|
branch='(no branch)'
|
|
fi
|
|
msg=$(printf '%s: %s' "$branch" "$head")
|
|
|
|
# state of the index
|
|
i_tree=$(git write-tree) &&
|
|
i_commit=$(printf 'index on %s\n' "$msg" |
|
|
git commit-tree $i_tree -p $b_commit) ||
|
|
die "Cannot save the current index state"
|
|
|
|
# state of the working tree
|
|
w_tree=$( (
|
|
rm -f "$TMP-index" &&
|
|
cp -p ${GIT_INDEX_FILE-"$GIT_DIR/index"} "$TMP-index" &&
|
|
GIT_INDEX_FILE="$TMP-index" &&
|
|
export GIT_INDEX_FILE &&
|
|
git read-tree -m $i_tree &&
|
|
git add -u &&
|
|
git write-tree &&
|
|
rm -f "$TMP-index"
|
|
) ) ||
|
|
die "Cannot save the current worktree state"
|
|
|
|
# create the stash
|
|
if test -z "$stash_msg"
|
|
then
|
|
stash_msg=$(printf 'WIP on %s' "$msg")
|
|
else
|
|
stash_msg=$(printf 'On %s: %s' "$branch" "$stash_msg")
|
|
fi
|
|
w_commit=$(printf '%s\n' "$stash_msg" |
|
|
git commit-tree $w_tree -p $b_commit -p $i_commit) ||
|
|
die "Cannot record working tree state"
|
|
|
|
git update-ref -m "$stash_msg" $ref_stash $w_commit ||
|
|
die "Cannot save the current status"
|
|
printf >&2 'Saved "%s"\n' "$stash_msg"
|
|
}
|
|
|
|
have_stash () {
|
|
git rev-parse --verify $ref_stash >/dev/null 2>&1
|
|
}
|
|
|
|
list_stash () {
|
|
have_stash || return 0
|
|
git log --pretty=oneline -g "$@" $ref_stash |
|
|
sed -n -e 's/^[.0-9a-f]* refs\///p'
|
|
}
|
|
|
|
show_stash () {
|
|
flags=$(git rev-parse --no-revs --flags "$@")
|
|
if test -z "$flags"
|
|
then
|
|
flags=--stat
|
|
fi
|
|
s=$(git rev-parse --revs-only --no-flags --default $ref_stash "$@")
|
|
|
|
w_commit=$(git rev-parse --verify "$s") &&
|
|
b_commit=$(git rev-parse --verify "$s^") &&
|
|
git diff-tree $flags $b_commit $w_commit
|
|
}
|
|
|
|
apply_stash () {
|
|
git diff-files --quiet ||
|
|
die 'Cannot restore on top of a dirty state'
|
|
|
|
unstash_index=
|
|
case "$1" in
|
|
--index)
|
|
unstash_index=t
|
|
shift
|
|
esac
|
|
|
|
# current index state
|
|
c_tree=$(git write-tree) ||
|
|
die 'Cannot apply a stash in the middle of a merge'
|
|
|
|
# stash records the work tree, and is a merge between the
|
|
# base commit (first parent) and the index tree (second parent).
|
|
s=$(git rev-parse --revs-only --no-flags --default $ref_stash "$@") &&
|
|
w_tree=$(git rev-parse --verify "$s:") &&
|
|
b_tree=$(git rev-parse --verify "$s^1:") &&
|
|
i_tree=$(git rev-parse --verify "$s^2:") ||
|
|
die "$*: no valid stashed state found"
|
|
|
|
unstashed_index_tree=
|
|
if test -n "$unstash_index" && test "$b_tree" != "$i_tree"
|
|
then
|
|
git diff-tree --binary $s^2^..$s^2 | git apply --cached
|
|
test $? -ne 0 &&
|
|
die 'Conflicts in index. Try without --index.'
|
|
unstashed_index_tree=$(git-write-tree) ||
|
|
die 'Could not save index tree'
|
|
git reset
|
|
fi
|
|
|
|
eval "
|
|
GITHEAD_$w_tree='Stashed changes' &&
|
|
GITHEAD_$c_tree='Updated upstream' &&
|
|
GITHEAD_$b_tree='Version stash was based on' &&
|
|
export GITHEAD_$w_tree GITHEAD_$c_tree GITHEAD_$b_tree
|
|
"
|
|
|
|
if git-merge-recursive $b_tree -- $c_tree $w_tree
|
|
then
|
|
# No conflict
|
|
if test -n "$unstashed_index_tree"
|
|
then
|
|
git read-tree "$unstashed_index_tree"
|
|
else
|
|
a="$TMP-added" &&
|
|
git diff-index --cached --name-only --diff-filter=A $c_tree >"$a" &&
|
|
git read-tree --reset $c_tree &&
|
|
git update-index --add --stdin <"$a" ||
|
|
die "Cannot unstage modified files"
|
|
rm -f "$a"
|
|
fi
|
|
git status || :
|
|
else
|
|
# Merge conflict; keep the exit status from merge-recursive
|
|
status=$?
|
|
if test -n "$unstash_index"
|
|
then
|
|
echo >&2 'Index was not unstashed.'
|
|
fi
|
|
exit $status
|
|
fi
|
|
}
|
|
|
|
# Main command set
|
|
case "$1" in
|
|
list)
|
|
shift
|
|
if test $# = 0
|
|
then
|
|
set x -n 10
|
|
shift
|
|
fi
|
|
list_stash "$@"
|
|
;;
|
|
show)
|
|
shift
|
|
show_stash "$@"
|
|
;;
|
|
apply)
|
|
shift
|
|
apply_stash "$@"
|
|
;;
|
|
clear)
|
|
clear_stash
|
|
;;
|
|
help | usage)
|
|
usage
|
|
;;
|
|
*)
|
|
if test $# -gt 0 && test "$1" = save
|
|
then
|
|
shift
|
|
fi
|
|
save_stash "$*" && git-reset --hard
|
|
;;
|
|
esac
|