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Commit | Line | Data |
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f2c66ed1 NS |
1 | #!/bin/sh |
2 | # Copyright (c) 2007, Nanako Shiraishi | |
3 | ||
a5ab00c5 SB |
4 | dashless=$(basename "$0" | sed -e 's/-/ /') |
5 | USAGE="list [<options>] | |
fcdd0e92 SB |
6 | or: $dashless show [<stash>] |
7 | or: $dashless drop [-q|--quiet] [<stash>] | |
8 | or: $dashless ( pop | apply ) [--index] [-q|--quiet] [<stash>] | |
a5ab00c5 | 9 | or: $dashless branch <branchname> [<stash>] |
fcdd0e92 | 10 | or: $dashless [save [--keep-index] [-q|--quiet] [<message>]] |
a5ab00c5 | 11 | or: $dashless clear" |
f2c66ed1 | 12 | |
3cd2491a | 13 | SUBDIRECTORY_OK=Yes |
8f321a39 | 14 | OPTIONS_SPEC= |
f2c66ed1 NS |
15 | . git-sh-setup |
16 | require_work_tree | |
ceff079b | 17 | cd_to_toplevel |
f2c66ed1 NS |
18 | |
19 | TMP="$GIT_DIR/.git-stash.$$" | |
20 | trap 'rm -f "$TMP-*"' 0 | |
21 | ||
22 | ref_stash=refs/stash | |
23 | ||
24 | no_changes () { | |
6848d58c JS |
25 | git diff-index --quiet --cached HEAD --ignore-submodules -- && |
26 | git diff-files --quiet --ignore-submodules | |
f2c66ed1 NS |
27 | } |
28 | ||
29 | clear_stash () { | |
3023dc69 JH |
30 | if test $# != 0 |
31 | then | |
32 | die "git stash clear with parameters is unimplemented" | |
33 | fi | |
0e32126f | 34 | if current=$(git rev-parse --verify $ref_stash 2>/dev/null) |
7ab3cc70 | 35 | then |
a9ee9bf9 | 36 | git update-ref -d $ref_stash $current |
7ab3cc70 | 37 | fi |
f2c66ed1 NS |
38 | } |
39 | ||
bc9e7399 | 40 | create_stash () { |
9f62e18a JH |
41 | stash_msg="$1" |
42 | ||
1eff26c0 | 43 | git update-index -q --refresh |
f2c66ed1 NS |
44 | if no_changes |
45 | then | |
f2c66ed1 NS |
46 | exit 0 |
47 | fi | |
f12e925a | 48 | |
f2c66ed1 | 49 | # state of the base commit |
5be60078 | 50 | if b_commit=$(git rev-parse --verify HEAD) |
f2c66ed1 | 51 | then |
aa4f31d5 | 52 | head=$(git log --no-color --abbrev-commit --pretty=oneline -n 1 HEAD --) |
f2c66ed1 NS |
53 | else |
54 | die "You do not have the initial commit yet" | |
55 | fi | |
56 | ||
5be60078 | 57 | if branch=$(git symbolic-ref -q HEAD) |
f2c66ed1 NS |
58 | then |
59 | branch=${branch#refs/heads/} | |
60 | else | |
61 | branch='(no branch)' | |
62 | fi | |
63 | msg=$(printf '%s: %s' "$branch" "$head") | |
64 | ||
65 | # state of the index | |
5be60078 | 66 | i_tree=$(git write-tree) && |
6143fa2c | 67 | i_commit=$(printf 'index on %s\n' "$msg" | |
5be60078 | 68 | git commit-tree $i_tree -p $b_commit) || |
f2c66ed1 NS |
69 | die "Cannot save the current index state" |
70 | ||
71 | # state of the working tree | |
72 | w_tree=$( ( | |
b24f56d6 JH |
73 | rm -f "$TMP-index" && |
74 | cp -p ${GIT_INDEX_FILE-"$GIT_DIR/index"} "$TMP-index" && | |
f2c66ed1 NS |
75 | GIT_INDEX_FILE="$TMP-index" && |
76 | export GIT_INDEX_FILE && | |
b24f56d6 | 77 | git read-tree -m $i_tree && |
5be60078 JH |
78 | git add -u && |
79 | git write-tree && | |
f2c66ed1 NS |
80 | rm -f "$TMP-index" |
81 | ) ) || | |
82 | die "Cannot save the current worktree state" | |
83 | ||
84 | # create the stash | |
9f62e18a JH |
85 | if test -z "$stash_msg" |
86 | then | |
87 | stash_msg=$(printf 'WIP on %s' "$msg") | |
88 | else | |
89 | stash_msg=$(printf 'On %s: %s' "$branch" "$stash_msg") | |
90 | fi | |
91 | w_commit=$(printf '%s\n' "$stash_msg" | | |
5be60078 | 92 | git commit-tree $w_tree -p $b_commit -p $i_commit) || |
f2c66ed1 | 93 | die "Cannot record working tree state" |
bc9e7399 | 94 | } |
f2c66ed1 | 95 | |
bc9e7399 | 96 | save_stash () { |
7bedebca | 97 | keep_index= |
fcdd0e92 SB |
98 | while test $# != 0 |
99 | do | |
100 | case "$1" in | |
101 | --keep-index) | |
102 | keep_index=t | |
103 | ;; | |
104 | -q|--quiet) | |
105 | GIT_QUIET=t | |
106 | ;; | |
107 | *) | |
108 | break | |
109 | ;; | |
110 | esac | |
7bedebca | 111 | shift |
fcdd0e92 | 112 | done |
7bedebca | 113 | |
47629dcf | 114 | stash_msg="$*" |
bc9e7399 | 115 | |
1eff26c0 | 116 | git update-index -q --refresh |
bc9e7399 JH |
117 | if no_changes |
118 | then | |
fcdd0e92 | 119 | say 'No local changes to save' |
bc9e7399 JH |
120 | exit 0 |
121 | fi | |
122 | test -f "$GIT_DIR/logs/$ref_stash" || | |
123 | clear_stash || die "Cannot initialize stash" | |
124 | ||
125 | create_stash "$stash_msg" | |
a9ee9bf9 EM |
126 | |
127 | # Make sure the reflog for stash is kept. | |
128 | : >>"$GIT_DIR/logs/$ref_stash" | |
f2c66ed1 | 129 | |
9f62e18a | 130 | git update-ref -m "$stash_msg" $ref_stash $w_commit || |
f2c66ed1 | 131 | die "Cannot save the current status" |
fcdd0e92 | 132 | say Saved working directory and index state "$stash_msg" |
7bedebca | 133 | |
fcdd0e92 | 134 | git reset --hard ${GIT_QUIET:+-q} |
7bedebca SG |
135 | |
136 | if test -n "$keep_index" && test -n $i_tree | |
137 | then | |
138 | git read-tree --reset -u $i_tree | |
139 | fi | |
f2c66ed1 NS |
140 | } |
141 | ||
401de405 | 142 | have_stash () { |
0e32126f | 143 | git rev-parse --verify $ref_stash >/dev/null 2>&1 |
401de405 JK |
144 | } |
145 | ||
f2c66ed1 | 146 | list_stash () { |
401de405 | 147 | have_stash || return 0 |
aa4f31d5 | 148 | git log --no-color --pretty=oneline -g "$@" $ref_stash -- | |
f2c66ed1 NS |
149 | sed -n -e 's/^[.0-9a-f]* refs\///p' |
150 | } | |
151 | ||
152 | show_stash () { | |
5be60078 | 153 | flags=$(git rev-parse --no-revs --flags "$@") |
f2c66ed1 NS |
154 | if test -z "$flags" |
155 | then | |
156 | flags=--stat | |
157 | fi | |
da65e7c1 | 158 | |
875471c5 BC |
159 | w_commit=$(git rev-parse --verify --default $ref_stash "$@") && |
160 | b_commit=$(git rev-parse --verify "$w_commit^") && | |
e7187e4e | 161 | git diff $flags $b_commit $w_commit |
f2c66ed1 NS |
162 | } |
163 | ||
164 | apply_stash () { | |
1eff26c0 | 165 | git update-index -q --refresh && |
6848d58c | 166 | git diff-files --quiet --ignore-submodules || |
2a79d2f6 | 167 | die 'Cannot apply to a dirty working tree, please stage your changes' |
f2c66ed1 | 168 | |
150937c4 | 169 | unstash_index= |
fcdd0e92 SB |
170 | |
171 | while test $# != 0 | |
172 | do | |
173 | case "$1" in | |
174 | --index) | |
175 | unstash_index=t | |
176 | ;; | |
177 | -q|--quiet) | |
178 | GIT_QUIET=t | |
179 | ;; | |
180 | *) | |
181 | break | |
182 | ;; | |
183 | esac | |
150937c4 | 184 | shift |
fcdd0e92 | 185 | done |
150937c4 | 186 | |
f2c66ed1 | 187 | # current index state |
5be60078 | 188 | c_tree=$(git write-tree) || |
f2c66ed1 NS |
189 | die 'Cannot apply a stash in the middle of a merge' |
190 | ||
cbeaccc3 JH |
191 | # stash records the work tree, and is a merge between the |
192 | # base commit (first parent) and the index tree (second parent). | |
875471c5 | 193 | s=$(git rev-parse --verify --default $ref_stash "$@") && |
5be60078 | 194 | w_tree=$(git rev-parse --verify "$s:") && |
cbeaccc3 JH |
195 | b_tree=$(git rev-parse --verify "$s^1:") && |
196 | i_tree=$(git rev-parse --verify "$s^2:") || | |
f2c66ed1 NS |
197 | die "$*: no valid stashed state found" |
198 | ||
cbeaccc3 | 199 | unstashed_index_tree= |
7bedebca SG |
200 | if test -n "$unstash_index" && test "$b_tree" != "$i_tree" && |
201 | test "$c_tree" != "$i_tree" | |
cbeaccc3 | 202 | then |
89d750bf | 203 | git diff-tree --binary $s^2^..$s^2 | git apply --cached |
150937c4 JS |
204 | test $? -ne 0 && |
205 | die 'Conflicts in index. Try without --index.' | |
52070790 | 206 | unstashed_index_tree=$(git write-tree) || |
150937c4 JS |
207 | die 'Could not save index tree' |
208 | git reset | |
cbeaccc3 | 209 | fi |
150937c4 | 210 | |
f2c66ed1 NS |
211 | eval " |
212 | GITHEAD_$w_tree='Stashed changes' && | |
213 | GITHEAD_$c_tree='Updated upstream' && | |
214 | GITHEAD_$b_tree='Version stash was based on' && | |
215 | export GITHEAD_$w_tree GITHEAD_$c_tree GITHEAD_$b_tree | |
216 | " | |
217 | ||
fcdd0e92 SB |
218 | if test -n "$GIT_QUIET" |
219 | then | |
220 | export GIT_MERGE_VERBOSITY=0 | |
221 | fi | |
52070790 | 222 | if git merge-recursive $b_tree -- $c_tree $w_tree |
f2c66ed1 NS |
223 | then |
224 | # No conflict | |
cbeaccc3 JH |
225 | if test -n "$unstashed_index_tree" |
226 | then | |
227 | git read-tree "$unstashed_index_tree" | |
83b3df7d JH |
228 | else |
229 | a="$TMP-added" && | |
89d750bf | 230 | git diff-index --cached --name-only --diff-filter=A $c_tree >"$a" && |
83b3df7d JH |
231 | git read-tree --reset $c_tree && |
232 | git update-index --add --stdin <"$a" || | |
233 | die "Cannot unstage modified files" | |
234 | rm -f "$a" | |
cbeaccc3 | 235 | fi |
fcdd0e92 SB |
236 | squelch= |
237 | if test -n "$GIT_QUIET" | |
238 | then | |
239 | squelch='>/dev/null 2>&1' | |
240 | fi | |
241 | eval "git status $squelch" || : | |
f2c66ed1 NS |
242 | else |
243 | # Merge conflict; keep the exit status from merge-recursive | |
150937c4 | 244 | status=$? |
cbeaccc3 JH |
245 | if test -n "$unstash_index" |
246 | then | |
247 | echo >&2 'Index was not unstashed.' | |
248 | fi | |
150937c4 | 249 | exit $status |
f2c66ed1 NS |
250 | fi |
251 | } | |
252 | ||
e25d5f9c BC |
253 | drop_stash () { |
254 | have_stash || die 'No stash entries to drop' | |
255 | ||
fcdd0e92 SB |
256 | while test $# != 0 |
257 | do | |
258 | case "$1" in | |
259 | -q|--quiet) | |
260 | GIT_QUIET=t | |
261 | ;; | |
262 | *) | |
263 | break | |
264 | ;; | |
265 | esac | |
266 | shift | |
267 | done | |
268 | ||
e25d5f9c BC |
269 | if test $# = 0 |
270 | then | |
271 | set x "$ref_stash@{0}" | |
272 | shift | |
273 | fi | |
274 | # Verify supplied argument looks like a stash entry | |
875471c5 | 275 | s=$(git rev-parse --verify "$@") && |
0e32126f JH |
276 | git rev-parse --verify "$s:" > /dev/null 2>&1 && |
277 | git rev-parse --verify "$s^1:" > /dev/null 2>&1 && | |
278 | git rev-parse --verify "$s^2:" > /dev/null 2>&1 || | |
e25d5f9c BC |
279 | die "$*: not a valid stashed state" |
280 | ||
281 | git reflog delete --updateref --rewrite "$@" && | |
fcdd0e92 | 282 | say "Dropped $* ($s)" || die "$*: Could not drop stash entry" |
e25d5f9c BC |
283 | |
284 | # clear_stash if we just dropped the last stash entry | |
0e32126f | 285 | git rev-parse --verify "$ref_stash@{0}" > /dev/null 2>&1 || clear_stash |
e25d5f9c BC |
286 | } |
287 | ||
656b5034 AMS |
288 | apply_to_branch () { |
289 | have_stash || die 'Nothing to apply' | |
290 | ||
291 | test -n "$1" || die 'No branch name specified' | |
292 | branch=$1 | |
293 | ||
294 | if test -z "$2" | |
295 | then | |
296 | set x "$ref_stash@{0}" | |
297 | fi | |
298 | stash=$2 | |
299 | ||
52070790 | 300 | git checkout -b $branch $stash^ && |
656b5034 AMS |
301 | apply_stash --index $stash && |
302 | drop_stash $stash | |
303 | } | |
304 | ||
f2c66ed1 NS |
305 | # Main command set |
306 | case "$1" in | |
fcb10a96 JH |
307 | list) |
308 | shift | |
f2c66ed1 NS |
309 | if test $# = 0 |
310 | then | |
311 | set x -n 10 | |
312 | shift | |
313 | fi | |
314 | list_stash "$@" | |
315 | ;; | |
316 | show) | |
317 | shift | |
318 | show_stash "$@" | |
319 | ;; | |
683befa1 KL |
320 | save) |
321 | shift | |
47629dcf | 322 | save_stash "$@" |
683befa1 | 323 | ;; |
f2c66ed1 NS |
324 | apply) |
325 | shift | |
326 | apply_stash "$@" | |
327 | ;; | |
328 | clear) | |
3023dc69 JH |
329 | shift |
330 | clear_stash "$@" | |
f2c66ed1 | 331 | ;; |
bc9e7399 JH |
332 | create) |
333 | if test $# -gt 0 && test "$1" = create | |
334 | then | |
335 | shift | |
336 | fi | |
337 | create_stash "$*" && echo "$w_commit" | |
338 | ;; | |
e25d5f9c BC |
339 | drop) |
340 | shift | |
341 | drop_stash "$@" | |
342 | ;; | |
bd56ff54 BC |
343 | pop) |
344 | shift | |
345 | if apply_stash "$@" | |
346 | then | |
347 | test -z "$unstash_index" || shift | |
348 | drop_stash "$@" | |
349 | fi | |
350 | ;; | |
656b5034 AMS |
351 | branch) |
352 | shift | |
353 | apply_to_branch "$@" | |
354 | ;; | |
f2c66ed1 | 355 | *) |
683befa1 | 356 | if test $# -eq 0 |
9f62e18a | 357 | then |
97bc00a4 | 358 | save_stash && |
fcdd0e92 | 359 | say '(To restore them type "git stash apply")' |
683befa1 KL |
360 | else |
361 | usage | |
9f62e18a | 362 | fi |
9f62e18a | 363 | ;; |
f2c66ed1 | 364 | esac |