2 # Copyright (c) 2007, Nanako Shiraishi
4 USAGE
='[ | list | show | apply | clear]'
11 TMP
="$GIT_DIR/.git-stash.$$"
12 trap 'rm -f "$TMP-*"' 0
17 git diff-index
--quiet --cached HEAD
&&
18 git diff-files
--quiet
22 if current
=$
(git rev-parse
--verify $ref_stash 2>/dev
/null
)
24 git update-ref
-d refs
/stash
$current
33 echo >&2 'No local changes to save'
36 test -f "$GIT_DIR/logs/$ref_stash" ||
37 clear_stash || die
"Cannot initialize stash"
39 # Make sure the reflog for stash is kept.
40 : >>"$GIT_DIR/logs/$ref_stash"
42 # state of the base commit
43 if b_commit
=$
(git rev-parse
--verify HEAD
)
45 head=$
(git log
--abbrev-commit --pretty=oneline
-n 1 HEAD
)
47 die
"You do not have the initial commit yet"
50 if branch
=$
(git symbolic-ref
-q HEAD
)
52 branch
=${branch#refs/heads/}
56 msg
=$
(printf '%s: %s' "$branch" "$head")
59 i_tree
=$
(git write-tree
) &&
60 i_commit
=$
(printf 'index on %s\n' "$msg" |
61 git commit-tree
$i_tree -p $b_commit) ||
62 die
"Cannot save the current index state"
64 # state of the working tree
67 cp -p ${GIT_INDEX_FILE-"$GIT_DIR/index"} "$TMP-index" &&
68 GIT_INDEX_FILE
="$TMP-index" &&
69 export GIT_INDEX_FILE
&&
70 git read-tree
-m $i_tree &&
75 die
"Cannot save the current worktree state"
78 if test -z "$stash_msg"
80 stash_msg
=$
(printf 'WIP on %s' "$msg")
82 stash_msg
=$
(printf 'On %s: %s' "$branch" "$stash_msg")
84 w_commit
=$
(printf '%s\n' "$stash_msg" |
85 git commit-tree
$w_tree -p $b_commit -p $i_commit) ||
86 die
"Cannot record working tree state"
88 git update-ref
-m "$stash_msg" $ref_stash $w_commit ||
89 die
"Cannot save the current status"
90 printf >&2 'Saved "%s"\n' "$stash_msg"
94 git rev-parse
--verify $ref_stash >/dev
/null
2>&1
98 have_stash ||
return 0
99 git log
--pretty=oneline
-g "$@" $ref_stash |
100 sed -n -e 's/^[.0-9a-f]* refs\///p'
104 flags
=$
(git rev-parse
--no-revs --flags "$@")
109 s
=$
(git rev-parse
--revs-only --no-flags --default $ref_stash "$@")
111 w_commit
=$
(git rev-parse
--verify "$s") &&
112 b_commit
=$
(git rev-parse
--verify "$s^") &&
113 git diff-tree
$flags $b_commit $w_commit
117 git diff-files
--quiet ||
118 die
'Cannot restore on top of a dirty state'
127 # current index state
128 c_tree
=$
(git write-tree
) ||
129 die
'Cannot apply a stash in the middle of a merge'
131 # stash records the work tree, and is a merge between the
132 # base commit (first parent) and the index tree (second parent).
133 s
=$
(git rev-parse
--revs-only --no-flags --default $ref_stash "$@") &&
134 w_tree
=$
(git rev-parse
--verify "$s:") &&
135 b_tree
=$
(git rev-parse
--verify "$s^1:") &&
136 i_tree
=$
(git rev-parse
--verify "$s^2:") ||
137 die
"$*: no valid stashed state found"
139 unstashed_index_tree
=
140 if test -n "$unstash_index" && test "$b_tree" != "$i_tree"
142 git diff-tree
--binary $s^
2^..
$s^
2 | git apply
--cached
144 die
'Conflicts in index. Try without --index.'
145 unstashed_index_tree
=$
(git-write-tree
) ||
146 die
'Could not save index tree'
151 GITHEAD_$w_tree='Stashed changes' &&
152 GITHEAD_$c_tree='Updated upstream' &&
153 GITHEAD_$b_tree='Version stash was based on' &&
154 export GITHEAD_$w_tree GITHEAD_$c_tree GITHEAD_$b_tree
157 if git-merge-recursive
$b_tree -- $c_tree $w_tree
160 if test -n "$unstashed_index_tree"
162 git read-tree
"$unstashed_index_tree"
165 git diff-index
--cached --name-only --diff-filter=A
$c_tree >"$a" &&
166 git read-tree
--reset $c_tree &&
167 git update-index
--add --stdin <"$a" ||
168 die
"Cannot unstage modified files"
173 # Merge conflict; keep the exit status from merge-recursive
175 if test -n "$unstash_index"
177 echo >&2 'Index was not unstashed.'
209 if test $# -gt 0 && test "$1" = save
213 save_stash
"$*" && git-reset
--hard