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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>] |
dc89689e | 10 | or: $dashless [save [--patch] [-k|--[no-]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 "$TMP-*"' 0 | |
21 | ||
22 | ref_stash=refs/stash | |
23 | ||
dda1f2a5 TR |
24 | if git config --get-colorbool color.interactive; then |
25 | help_color="$(git config --get-color color.interactive.help 'red bold')" | |
26 | reset_color="$(git config --get-color '' reset)" | |
27 | else | |
28 | help_color= | |
29 | reset_color= | |
30 | fi | |
31 | ||
f2c66ed1 | 32 | no_changes () { |
6848d58c JS |
33 | git diff-index --quiet --cached HEAD --ignore-submodules -- && |
34 | git diff-files --quiet --ignore-submodules | |
f2c66ed1 NS |
35 | } |
36 | ||
37 | clear_stash () { | |
3023dc69 JH |
38 | if test $# != 0 |
39 | then | |
40 | die "git stash clear with parameters is unimplemented" | |
41 | fi | |
0e32126f | 42 | if current=$(git rev-parse --verify $ref_stash 2>/dev/null) |
7ab3cc70 | 43 | then |
a9ee9bf9 | 44 | git update-ref -d $ref_stash $current |
7ab3cc70 | 45 | fi |
f2c66ed1 NS |
46 | } |
47 | ||
bc9e7399 | 48 | create_stash () { |
9f62e18a JH |
49 | stash_msg="$1" |
50 | ||
1eff26c0 | 51 | git update-index -q --refresh |
f2c66ed1 NS |
52 | if no_changes |
53 | then | |
f2c66ed1 NS |
54 | exit 0 |
55 | fi | |
f12e925a | 56 | |
f2c66ed1 | 57 | # state of the base commit |
5be60078 | 58 | if b_commit=$(git rev-parse --verify HEAD) |
f2c66ed1 | 59 | then |
b0e621ad | 60 | head=$(git rev-list --oneline -n 1 HEAD --) |
f2c66ed1 NS |
61 | else |
62 | die "You do not have the initial commit yet" | |
63 | fi | |
64 | ||
5be60078 | 65 | if branch=$(git symbolic-ref -q HEAD) |
f2c66ed1 NS |
66 | then |
67 | branch=${branch#refs/heads/} | |
68 | else | |
69 | branch='(no branch)' | |
70 | fi | |
71 | msg=$(printf '%s: %s' "$branch" "$head") | |
72 | ||
73 | # state of the index | |
5be60078 | 74 | i_tree=$(git write-tree) && |
6143fa2c | 75 | i_commit=$(printf 'index on %s\n' "$msg" | |
5be60078 | 76 | git commit-tree $i_tree -p $b_commit) || |
f2c66ed1 NS |
77 | die "Cannot save the current index state" |
78 | ||
dda1f2a5 TR |
79 | if test -z "$patch_mode" |
80 | then | |
81 | ||
82 | # state of the working tree | |
83 | w_tree=$( ( | |
84 | rm -f "$TMP-index" && | |
85 | cp -p ${GIT_INDEX_FILE-"$GIT_DIR/index"} "$TMP-index" && | |
86 | GIT_INDEX_FILE="$TMP-index" && | |
87 | export GIT_INDEX_FILE && | |
88 | git read-tree -m $i_tree && | |
7aa5d43c | 89 | git diff --name-only -z HEAD | git update-index -z --add --remove --stdin && |
dda1f2a5 TR |
90 | git write-tree && |
91 | rm -f "$TMP-index" | |
92 | ) ) || | |
93 | die "Cannot save the current worktree state" | |
94 | ||
95 | else | |
96 | ||
b24f56d6 | 97 | rm -f "$TMP-index" && |
dda1f2a5 TR |
98 | GIT_INDEX_FILE="$TMP-index" git read-tree HEAD && |
99 | ||
100 | # find out what the user wants | |
101 | GIT_INDEX_FILE="$TMP-index" \ | |
102 | git add--interactive --patch=stash -- && | |
103 | ||
104 | # state of the working tree | |
105 | w_tree=$(GIT_INDEX_FILE="$TMP-index" git write-tree) || | |
f2c66ed1 NS |
106 | die "Cannot save the current worktree state" |
107 | ||
dda1f2a5 TR |
108 | git diff-tree -p HEAD $w_tree > "$TMP-patch" && |
109 | test -s "$TMP-patch" || | |
110 | die "No changes selected" | |
111 | ||
112 | rm -f "$TMP-index" || | |
113 | die "Cannot remove temporary index (can't happen)" | |
114 | ||
115 | fi | |
116 | ||
f2c66ed1 | 117 | # create the stash |
9f62e18a JH |
118 | if test -z "$stash_msg" |
119 | then | |
120 | stash_msg=$(printf 'WIP on %s' "$msg") | |
121 | else | |
122 | stash_msg=$(printf 'On %s: %s' "$branch" "$stash_msg") | |
123 | fi | |
124 | w_commit=$(printf '%s\n' "$stash_msg" | | |
5be60078 | 125 | git commit-tree $w_tree -p $b_commit -p $i_commit) || |
f2c66ed1 | 126 | die "Cannot record working tree state" |
bc9e7399 | 127 | } |
f2c66ed1 | 128 | |
bc9e7399 | 129 | save_stash () { |
7bedebca | 130 | keep_index= |
dda1f2a5 | 131 | patch_mode= |
fcdd0e92 SB |
132 | while test $# != 0 |
133 | do | |
134 | case "$1" in | |
ea41cfc4 | 135 | -k|--keep-index) |
fcdd0e92 SB |
136 | keep_index=t |
137 | ;; | |
dda1f2a5 TR |
138 | --no-keep-index) |
139 | keep_index= | |
140 | ;; | |
141 | -p|--patch) | |
142 | patch_mode=t | |
fcdd0e92 SB |
143 | keep_index=t |
144 | ;; | |
145 | -q|--quiet) | |
146 | GIT_QUIET=t | |
147 | ;; | |
3c2eb80f MM |
148 | --) |
149 | shift | |
150 | break | |
151 | ;; | |
152 | -*) | |
153 | echo "error: unknown option for 'stash save': $1" | |
5d005922 | 154 | echo " To provide a message, use git stash save -- '$1'" |
3c2eb80f MM |
155 | usage |
156 | ;; | |
fcdd0e92 SB |
157 | *) |
158 | break | |
159 | ;; | |
160 | esac | |
7bedebca | 161 | shift |
fcdd0e92 | 162 | done |
7bedebca | 163 | |
47629dcf | 164 | stash_msg="$*" |
bc9e7399 | 165 | |
1eff26c0 | 166 | git update-index -q --refresh |
bc9e7399 JH |
167 | if no_changes |
168 | then | |
fcdd0e92 | 169 | say 'No local changes to save' |
bc9e7399 JH |
170 | exit 0 |
171 | fi | |
172 | test -f "$GIT_DIR/logs/$ref_stash" || | |
173 | clear_stash || die "Cannot initialize stash" | |
174 | ||
175 | create_stash "$stash_msg" | |
a9ee9bf9 EM |
176 | |
177 | # Make sure the reflog for stash is kept. | |
178 | : >>"$GIT_DIR/logs/$ref_stash" | |
f2c66ed1 | 179 | |
9f62e18a | 180 | git update-ref -m "$stash_msg" $ref_stash $w_commit || |
f2c66ed1 | 181 | die "Cannot save the current status" |
fcdd0e92 | 182 | say Saved working directory and index state "$stash_msg" |
7bedebca | 183 | |
dda1f2a5 | 184 | if test -z "$patch_mode" |
7bedebca | 185 | then |
dda1f2a5 TR |
186 | git reset --hard ${GIT_QUIET:+-q} |
187 | ||
188 | if test -n "$keep_index" && test -n $i_tree | |
189 | then | |
190 | git read-tree --reset -u $i_tree | |
191 | fi | |
192 | else | |
193 | git apply -R < "$TMP-patch" || | |
194 | die "Cannot remove worktree changes" | |
195 | ||
196 | if test -z "$keep_index" | |
197 | then | |
198 | git reset | |
199 | fi | |
7bedebca | 200 | fi |
f2c66ed1 NS |
201 | } |
202 | ||
401de405 | 203 | have_stash () { |
0e32126f | 204 | git rev-parse --verify $ref_stash >/dev/null 2>&1 |
401de405 JK |
205 | } |
206 | ||
f2c66ed1 | 207 | list_stash () { |
401de405 | 208 | have_stash || return 0 |
391c53bd | 209 | git log --format="%gd: %gs" -g "$@" $ref_stash -- |
f2c66ed1 NS |
210 | } |
211 | ||
212 | show_stash () { | |
a9bf09e1 | 213 | assert_stash_like "$@" |
14cd4581 | 214 | |
a9bf09e1 | 215 | git diff ${FLAGS:---stat} $b_commit $w_commit |
f2c66ed1 NS |
216 | } |
217 | ||
ef763129 JS |
218 | # |
219 | # Parses the remaining options looking for flags and | |
220 | # at most one revision defaulting to ${ref_stash}@{0} | |
221 | # if none found. | |
222 | # | |
223 | # Derives related tree and commit objects from the | |
224 | # revision, if one is found. | |
225 | # | |
226 | # stash records the work tree, and is a merge between the | |
227 | # base commit (first parent) and the index tree (second parent). | |
228 | # | |
229 | # REV is set to the symbolic version of the specified stash-like commit | |
230 | # IS_STASH_LIKE is non-blank if ${REV} looks like a stash | |
231 | # IS_STASH_REF is non-blank if the ${REV} looks like a stash ref | |
232 | # s is set to the SHA1 of the stash commit | |
233 | # w_commit is set to the commit containing the working tree | |
234 | # b_commit is set to the base commit | |
235 | # i_commit is set to the commit containing the index tree | |
236 | # w_tree is set to the working tree | |
237 | # b_tree is set to the base tree | |
238 | # i_tree is set to the index tree | |
239 | # | |
240 | # GIT_QUIET is set to t if -q is specified | |
241 | # INDEX_OPTION is set to --index if --index is specified. | |
242 | # FLAGS is set to the remaining flags | |
243 | # | |
244 | # dies if: | |
245 | # * too many revisions specified | |
246 | # * no revision is specified and there is no stash stack | |
247 | # * a revision is specified which cannot be resolve to a SHA1 | |
248 | # * a non-existent stash reference is specified | |
249 | # | |
250 | ||
251 | parse_flags_and_rev() | |
252 | { | |
253 | test "$PARSE_CACHE" = "$*" && return 0 # optimisation | |
254 | PARSE_CACHE="$*" | |
255 | ||
256 | IS_STASH_LIKE= | |
257 | IS_STASH_REF= | |
258 | INDEX_OPTION= | |
259 | s= | |
260 | w_commit= | |
261 | b_commit= | |
262 | i_commit= | |
263 | w_tree= | |
264 | b_tree= | |
265 | i_tree= | |
266 | ||
267 | REV=$(git rev-parse --no-flags --symbolic "$@" 2>/dev/null) | |
ef763129 JS |
268 | |
269 | FLAGS= | |
2bea593b | 270 | for opt |
ef763129 | 271 | do |
2bea593b JS |
272 | case "$opt" in |
273 | -q|--quiet) | |
274 | GIT_QUIET=-t | |
275 | ;; | |
ef763129 JS |
276 | --index) |
277 | INDEX_OPTION=--index | |
278 | ;; | |
2bea593b JS |
279 | -*) |
280 | FLAGS="${FLAGS}${FLAGS:+ }$opt" | |
ef763129 JS |
281 | ;; |
282 | esac | |
ef763129 JS |
283 | done |
284 | ||
285 | set -- $REV | |
286 | ||
287 | case $# in | |
288 | 0) | |
289 | have_stash || die "No stash found." | |
290 | set -- ${ref_stash}@{0} | |
291 | ;; | |
292 | 1) | |
293 | : | |
294 | ;; | |
295 | *) | |
296 | die "Too many revisions specified: $REV" | |
297 | ;; | |
298 | esac | |
299 | ||
300 | REV=$(git rev-parse --quiet --symbolic --verify $1 2>/dev/null) || die "$1 is not valid reference" | |
301 | ||
302 | i_commit=$(git rev-parse --quiet --verify $REV^2 2>/dev/null) && | |
303 | set -- $(git rev-parse $REV $REV^1 $REV: $REV^1: $REV^2: 2>/dev/null) && | |
304 | s=$1 && | |
305 | w_commit=$1 && | |
306 | b_commit=$2 && | |
307 | w_tree=$3 && | |
308 | b_tree=$4 && | |
309 | i_tree=$5 && | |
310 | IS_STASH_LIKE=t && | |
311 | test "$ref_stash" = "$(git rev-parse --symbolic-full-name "${REV%@*}")" && | |
312 | IS_STASH_REF=t | |
313 | ||
b0f0ecd9 JS |
314 | if test "${REV}" != "${REV%{*\}}" |
315 | then | |
316 | # maintainers: it would be better if git rev-parse indicated | |
317 | # this condition with a non-zero status code but as of 1.7.2.1 it | |
318 | # it did not. So, we use non-empty stderr output as a proxy for the | |
319 | # condition of interest. | |
320 | test -z "$(git rev-parse "$REV" 2>&1 >/dev/null)" || die "$REV does not exist in the stash log" | |
321 | fi | |
322 | ||
ef763129 JS |
323 | } |
324 | ||
325 | is_stash_like() | |
326 | { | |
327 | parse_flags_and_rev "$@" | |
328 | test -n "$IS_STASH_LIKE" | |
329 | } | |
330 | ||
331 | assert_stash_like() { | |
332 | is_stash_like "$@" || die "'$*' is not a stash-like commit" | |
333 | } | |
334 | ||
335 | is_stash_ref() { | |
336 | is_stash_like "$@" && test -n "$IS_STASH_REF" | |
337 | } | |
338 | ||
339 | assert_stash_ref() { | |
340 | is_stash_ref "$@" || die "'$*' is not a stash reference" | |
341 | } | |
342 | ||
f2c66ed1 | 343 | apply_stash () { |
fcdd0e92 | 344 | |
064ed100 | 345 | assert_stash_like "$@" |
f2c66ed1 | 346 | |
5fd448f1 OA |
347 | git update-index -q --refresh && |
348 | git diff-files --quiet --ignore-submodules || | |
349 | die 'Cannot apply to a dirty working tree, please stage your changes' | |
350 | ||
351 | # current index state | |
352 | c_tree=$(git write-tree) || | |
353 | die 'Cannot apply a stash in the middle of a merge' | |
354 | ||
cbeaccc3 | 355 | unstashed_index_tree= |
064ed100 | 356 | if test -n "$INDEX_OPTION" && test "$b_tree" != "$i_tree" && |
7bedebca | 357 | test "$c_tree" != "$i_tree" |
cbeaccc3 | 358 | then |
89d750bf | 359 | git diff-tree --binary $s^2^..$s^2 | git apply --cached |
150937c4 JS |
360 | test $? -ne 0 && |
361 | die 'Conflicts in index. Try without --index.' | |
52070790 | 362 | unstashed_index_tree=$(git write-tree) || |
150937c4 JS |
363 | die 'Could not save index tree' |
364 | git reset | |
cbeaccc3 | 365 | fi |
150937c4 | 366 | |
f2c66ed1 NS |
367 | eval " |
368 | GITHEAD_$w_tree='Stashed changes' && | |
369 | GITHEAD_$c_tree='Updated upstream' && | |
370 | GITHEAD_$b_tree='Version stash was based on' && | |
371 | export GITHEAD_$w_tree GITHEAD_$c_tree GITHEAD_$b_tree | |
372 | " | |
373 | ||
fcdd0e92 SB |
374 | if test -n "$GIT_QUIET" |
375 | then | |
69ae92bd | 376 | GIT_MERGE_VERBOSITY=0 && export GIT_MERGE_VERBOSITY |
fcdd0e92 | 377 | fi |
52070790 | 378 | if git merge-recursive $b_tree -- $c_tree $w_tree |
f2c66ed1 NS |
379 | then |
380 | # No conflict | |
cbeaccc3 JH |
381 | if test -n "$unstashed_index_tree" |
382 | then | |
383 | git read-tree "$unstashed_index_tree" | |
83b3df7d JH |
384 | else |
385 | a="$TMP-added" && | |
89d750bf | 386 | git diff-index --cached --name-only --diff-filter=A $c_tree >"$a" && |
83b3df7d JH |
387 | git read-tree --reset $c_tree && |
388 | git update-index --add --stdin <"$a" || | |
389 | die "Cannot unstage modified files" | |
390 | rm -f "$a" | |
cbeaccc3 | 391 | fi |
fcdd0e92 SB |
392 | squelch= |
393 | if test -n "$GIT_QUIET" | |
394 | then | |
395 | squelch='>/dev/null 2>&1' | |
396 | fi | |
397 | eval "git status $squelch" || : | |
f2c66ed1 NS |
398 | else |
399 | # Merge conflict; keep the exit status from merge-recursive | |
150937c4 | 400 | status=$? |
064ed100 | 401 | if test -n "$INDEX_OPTION" |
cbeaccc3 JH |
402 | then |
403 | echo >&2 'Index was not unstashed.' | |
404 | fi | |
150937c4 | 405 | exit $status |
f2c66ed1 NS |
406 | fi |
407 | } | |
408 | ||
f276872d JS |
409 | pop_stash() { |
410 | assert_stash_ref "$@" | |
411 | ||
412 | apply_stash "$@" && | |
413 | drop_stash "$@" | |
414 | } | |
415 | ||
e25d5f9c | 416 | drop_stash () { |
92e39e44 | 417 | assert_stash_ref "$@" |
e25d5f9c | 418 | |
92e39e44 JS |
419 | git reflog delete --updateref --rewrite "${REV}" && |
420 | say "Dropped ${REV} ($s)" || die "${REV}: Could not drop stash entry" | |
e25d5f9c BC |
421 | |
422 | # clear_stash if we just dropped the last stash entry | |
0e32126f | 423 | git rev-parse --verify "$ref_stash@{0}" > /dev/null 2>&1 || clear_stash |
e25d5f9c BC |
424 | } |
425 | ||
656b5034 | 426 | apply_to_branch () { |
656b5034 AMS |
427 | test -n "$1" || die 'No branch name specified' |
428 | branch=$1 | |
fb433dc9 | 429 | shift 1 |
656b5034 | 430 | |
fb433dc9 JS |
431 | set -- --index "$@" |
432 | assert_stash_like "$@" | |
433 | ||
434 | git checkout -b $branch $REV^ && | |
57693d03 JS |
435 | apply_stash "$@" && { |
436 | test -z "$IS_STASH_REF" || drop_stash "$@" | |
437 | } | |
656b5034 AMS |
438 | } |
439 | ||
ef763129 | 440 | PARSE_CACHE='--not-parsed' |
3c2eb80f MM |
441 | # The default command is "save" if nothing but options are given |
442 | seen_non_option= | |
443 | for opt | |
444 | do | |
445 | case "$opt" in | |
446 | -*) ;; | |
447 | *) seen_non_option=t; break ;; | |
448 | esac | |
449 | done | |
450 | ||
451 | test -n "$seen_non_option" || set "save" "$@" | |
452 | ||
f2c66ed1 NS |
453 | # Main command set |
454 | case "$1" in | |
fcb10a96 JH |
455 | list) |
456 | shift | |
f2c66ed1 NS |
457 | list_stash "$@" |
458 | ;; | |
459 | show) | |
460 | shift | |
461 | show_stash "$@" | |
462 | ;; | |
683befa1 KL |
463 | save) |
464 | shift | |
47629dcf | 465 | save_stash "$@" |
683befa1 | 466 | ;; |
f2c66ed1 NS |
467 | apply) |
468 | shift | |
469 | apply_stash "$@" | |
470 | ;; | |
471 | clear) | |
3023dc69 JH |
472 | shift |
473 | clear_stash "$@" | |
f2c66ed1 | 474 | ;; |
bc9e7399 JH |
475 | create) |
476 | if test $# -gt 0 && test "$1" = create | |
477 | then | |
478 | shift | |
479 | fi | |
480 | create_stash "$*" && echo "$w_commit" | |
481 | ;; | |
e25d5f9c BC |
482 | drop) |
483 | shift | |
484 | drop_stash "$@" | |
485 | ;; | |
bd56ff54 BC |
486 | pop) |
487 | shift | |
f276872d | 488 | pop_stash "$@" |
bd56ff54 | 489 | ;; |
656b5034 AMS |
490 | branch) |
491 | shift | |
492 | apply_to_branch "$@" | |
493 | ;; | |
f2c66ed1 | 494 | *) |
3c2eb80f MM |
495 | case $# in |
496 | 0) | |
97bc00a4 | 497 | save_stash && |
fcdd0e92 | 498 | say '(To restore them type "git stash apply")' |
ea41cfc4 JS |
499 | ;; |
500 | *) | |
683befa1 | 501 | usage |
ea41cfc4 | 502 | esac |
9f62e18a | 503 | ;; |
f2c66ed1 | 504 | esac |