mirror of
https://github.com/git/git.git
synced 2024-10-31 06:17:56 +01:00
875471c510
The referenced commit tried to fix a flaw in stash's handling of a user supplied invalid ref. i.e. 'git stash apply fake_ref@{0}' should fail instead of applying stash@{0}. But, it did so in a naive way by avoiding the use of the --default option of rev-parse, and instead manually supplied the default revision if the user supplied an empty command line. This prevented a common usage scenario of supplying flags on the stash command line (i.e. non-empty command line) which would be parsed by lower level git commands, without supplying a specific revision. This should fall back to the default revision, but now it causes an error. e.g. 'git stash show -p' The correct fix is to use the --verify option of rev-parse, which fails properly if an invalid ref is supplied, and still allows falling back to a default ref when one is not supplied. Convert stash-drop to use --verify while we're at it, since specifying multiple revisions for any of these commands is also an error and --verify makes it so. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
320 lines
6.5 KiB
Bash
Executable file
320 lines
6.5 KiB
Bash
Executable file
#!/bin/sh
|
|
# Copyright (c) 2007, Nanako Shiraishi
|
|
|
|
dashless=$(basename "$0" | sed -e 's/-/ /')
|
|
USAGE="list [<options>]
|
|
or: $dashless (show | drop | pop ) [<stash>]
|
|
or: $dashless apply [--index] [<stash>]
|
|
or: $dashless branch <branchname> [<stash>]
|
|
or: $dashless [save [--keep-index] [<message>]]
|
|
or: $dashless clear"
|
|
|
|
SUBDIRECTORY_OK=Yes
|
|
OPTIONS_SPEC=
|
|
. git-sh-setup
|
|
require_work_tree
|
|
cd_to_toplevel
|
|
|
|
TMP="$GIT_DIR/.git-stash.$$"
|
|
trap 'rm -f "$TMP-*"' 0
|
|
|
|
ref_stash=refs/stash
|
|
|
|
no_changes () {
|
|
git diff-index --quiet --cached HEAD --ignore-submodules -- &&
|
|
git diff-files --quiet --ignore-submodules
|
|
}
|
|
|
|
clear_stash () {
|
|
if test $# != 0
|
|
then
|
|
die "git stash clear with parameters is unimplemented"
|
|
fi
|
|
if current=$(git rev-parse --verify $ref_stash 2>/dev/null)
|
|
then
|
|
git update-ref -d $ref_stash $current
|
|
fi
|
|
}
|
|
|
|
create_stash () {
|
|
stash_msg="$1"
|
|
|
|
git update-index -q --refresh
|
|
if no_changes
|
|
then
|
|
exit 0
|
|
fi
|
|
|
|
# state of the base commit
|
|
if b_commit=$(git rev-parse --verify HEAD)
|
|
then
|
|
head=$(git log --no-color --abbrev-commit --pretty=oneline -n 1 HEAD --)
|
|
else
|
|
die "You do not have the initial commit yet"
|
|
fi
|
|
|
|
if branch=$(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"
|
|
}
|
|
|
|
save_stash () {
|
|
keep_index=
|
|
case "$1" in
|
|
--keep-index)
|
|
keep_index=t
|
|
shift
|
|
esac
|
|
|
|
stash_msg="$*"
|
|
|
|
git update-index -q --refresh
|
|
if no_changes
|
|
then
|
|
echo 'No local changes to save'
|
|
exit 0
|
|
fi
|
|
test -f "$GIT_DIR/logs/$ref_stash" ||
|
|
clear_stash || die "Cannot initialize stash"
|
|
|
|
create_stash "$stash_msg"
|
|
|
|
# Make sure the reflog for stash is kept.
|
|
: >>"$GIT_DIR/logs/$ref_stash"
|
|
|
|
git update-ref -m "$stash_msg" $ref_stash $w_commit ||
|
|
die "Cannot save the current status"
|
|
printf 'Saved working directory and index state "%s"\n' "$stash_msg"
|
|
|
|
git reset --hard
|
|
|
|
if test -n "$keep_index" && test -n $i_tree
|
|
then
|
|
git read-tree --reset -u $i_tree
|
|
fi
|
|
}
|
|
|
|
have_stash () {
|
|
git rev-parse --verify $ref_stash >/dev/null 2>&1
|
|
}
|
|
|
|
list_stash () {
|
|
have_stash || return 0
|
|
git log --no-color --pretty=oneline -g "$@" $ref_stash -- |
|
|
sed -n -e 's/^[.0-9a-f]* refs\///p'
|
|
}
|
|
|
|
show_stash () {
|
|
flags=$(git rev-parse --no-revs --flags "$@")
|
|
if test -z "$flags"
|
|
then
|
|
flags=--stat
|
|
fi
|
|
|
|
w_commit=$(git rev-parse --verify --default $ref_stash "$@") &&
|
|
b_commit=$(git rev-parse --verify "$w_commit^") &&
|
|
git diff $flags $b_commit $w_commit
|
|
}
|
|
|
|
apply_stash () {
|
|
git update-index -q --refresh &&
|
|
git diff-files --quiet --ignore-submodules ||
|
|
die 'Cannot apply to a dirty working tree, please stage your changes'
|
|
|
|
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 --verify --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" &&
|
|
test "$c_tree" != "$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
|
|
}
|
|
|
|
drop_stash () {
|
|
have_stash || die 'No stash entries to drop'
|
|
|
|
if test $# = 0
|
|
then
|
|
set x "$ref_stash@{0}"
|
|
shift
|
|
fi
|
|
# Verify supplied argument looks like a stash entry
|
|
s=$(git rev-parse --verify "$@") &&
|
|
git rev-parse --verify "$s:" > /dev/null 2>&1 &&
|
|
git rev-parse --verify "$s^1:" > /dev/null 2>&1 &&
|
|
git rev-parse --verify "$s^2:" > /dev/null 2>&1 ||
|
|
die "$*: not a valid stashed state"
|
|
|
|
git reflog delete --updateref --rewrite "$@" &&
|
|
echo "Dropped $* ($s)" || die "$*: Could not drop stash entry"
|
|
|
|
# clear_stash if we just dropped the last stash entry
|
|
git rev-parse --verify "$ref_stash@{0}" > /dev/null 2>&1 || clear_stash
|
|
}
|
|
|
|
apply_to_branch () {
|
|
have_stash || die 'Nothing to apply'
|
|
|
|
test -n "$1" || die 'No branch name specified'
|
|
branch=$1
|
|
|
|
if test -z "$2"
|
|
then
|
|
set x "$ref_stash@{0}"
|
|
fi
|
|
stash=$2
|
|
|
|
git-checkout -b $branch $stash^ &&
|
|
apply_stash --index $stash &&
|
|
drop_stash $stash
|
|
}
|
|
|
|
# Main command set
|
|
case "$1" in
|
|
list)
|
|
shift
|
|
if test $# = 0
|
|
then
|
|
set x -n 10
|
|
shift
|
|
fi
|
|
list_stash "$@"
|
|
;;
|
|
show)
|
|
shift
|
|
show_stash "$@"
|
|
;;
|
|
save)
|
|
shift
|
|
save_stash "$@"
|
|
;;
|
|
apply)
|
|
shift
|
|
apply_stash "$@"
|
|
;;
|
|
clear)
|
|
shift
|
|
clear_stash "$@"
|
|
;;
|
|
create)
|
|
if test $# -gt 0 && test "$1" = create
|
|
then
|
|
shift
|
|
fi
|
|
create_stash "$*" && echo "$w_commit"
|
|
;;
|
|
drop)
|
|
shift
|
|
drop_stash "$@"
|
|
;;
|
|
pop)
|
|
shift
|
|
if apply_stash "$@"
|
|
then
|
|
test -z "$unstash_index" || shift
|
|
drop_stash "$@"
|
|
fi
|
|
;;
|
|
branch)
|
|
shift
|
|
apply_to_branch "$@"
|
|
;;
|
|
*)
|
|
if test $# -eq 0
|
|
then
|
|
save_stash &&
|
|
echo '(To restore them type "git stash apply")'
|
|
else
|
|
usage
|
|
fi
|
|
;;
|
|
esac
|