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Commit | Line | Data |
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d1c5f2a4 JH |
1 | #!/bin/sh |
2 | # | |
d64e6b04 | 3 | # Copyright (c) 2005, 2006 Junio C Hamano |
d1c5f2a4 | 4 | |
78443d90 PH |
5 | OPTIONS_KEEPDASHDASH= |
6 | OPTIONS_SPEC="\ | |
7 | git-am [options] <mbox>|<Maildir>... | |
8 | git-am [options] --resolved | |
9 | git-am [options] --skip | |
10 | -- | |
11 | d,dotest= use <dir> and not .dotest | |
66006c63 | 12 | i,interactive run interactively |
78443d90 PH |
13 | b,binary pass --allo-binary-replacement to git-apply |
14 | 3,3way allow fall back on 3way merging if needed | |
15 | s,signoff add a Signed-off-by line to the commit message | |
16 | u,utf8 recode into utf8 (default) | |
fe1fa946 | 17 | k,keep pass -k flag to git-mailinfo |
78443d90 PH |
18 | whitespace= pass it through git-apply |
19 | C= pass it through git-apply | |
20 | p= pass it through git-apply | |
21 | resolvemsg= override error message when patch failure occurs | |
22 | r,resolved to be used after a patch failure | |
23 | skip skip the current patch" | |
24 | ||
cf1fe88c | 25 | . git-sh-setup |
f9474132 | 26 | set_reflog_action am |
7eff28a9 | 27 | require_work_tree |
d1c5f2a4 | 28 | |
d64e6b04 JH |
29 | git var GIT_COMMITTER_IDENT >/dev/null || exit |
30 | ||
d1c5f2a4 JH |
31 | stop_here () { |
32 | echo "$1" >"$dotest/next" | |
33 | exit 1 | |
34 | } | |
35 | ||
ced9456a | 36 | stop_here_user_resolve () { |
cc120056 | 37 | if [ -n "$resolvemsg" ]; then |
a23bfaed | 38 | printf '%s\n' "$resolvemsg" |
cc120056 SE |
39 | stop_here $1 |
40 | fi | |
ced9456a RS |
41 | cmdline=$(basename $0) |
42 | if test '' != "$interactive" | |
43 | then | |
44 | cmdline="$cmdline -i" | |
45 | fi | |
46 | if test '' != "$threeway" | |
47 | then | |
48 | cmdline="$cmdline -3" | |
49 | fi | |
50 | if test '.dotest' != "$dotest" | |
51 | then | |
52 | cmdline="$cmdline -d=$dotest" | |
53 | fi | |
54 | echo "When you have resolved this problem run \"$cmdline --resolved\"." | |
55 | echo "If you would prefer to skip this patch, instead run \"$cmdline --skip\"." | |
56 | ||
57 | stop_here $1 | |
58 | } | |
59 | ||
d1c5f2a4 JH |
60 | go_next () { |
61 | rm -f "$dotest/$msgnum" "$dotest/msg" "$dotest/msg-clean" \ | |
62 | "$dotest/patch" "$dotest/info" | |
63 | echo "$next" >"$dotest/next" | |
64 | this=$next | |
65 | } | |
66 | ||
fd7bcfb5 JH |
67 | cannot_fallback () { |
68 | echo "$1" | |
69 | echo "Cannot fall back to three-way merge." | |
70 | exit 1 | |
71 | } | |
72 | ||
d1c5f2a4 JH |
73 | fall_back_3way () { |
74 | O_OBJECT=`cd "$GIT_OBJECT_DIRECTORY" && pwd` | |
75 | ||
76 | rm -fr "$dotest"/patch-merge-* | |
77 | mkdir "$dotest/patch-merge-tmp-dir" | |
78 | ||
79 | # First see if the patch records the index info that we can use. | |
7a988699 JS |
80 | git apply --build-fake-ancestor "$dotest/patch-merge-tmp-index" \ |
81 | "$dotest/patch" && | |
fd7bcfb5 | 82 | GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \ |
5be60078 | 83 | git write-tree >"$dotest/patch-merge-base+" || |
b1440cc8 | 84 | cannot_fallback "Repository lacks necessary blobs to fall back on 3-way merge." |
fd7bcfb5 JH |
85 | |
86 | echo Using index info to reconstruct a base tree... | |
87 | if GIT_INDEX_FILE="$dotest/patch-merge-tmp-index" \ | |
5be60078 | 88 | git apply $binary --cached <"$dotest/patch" |
d1c5f2a4 | 89 | then |
d1c5f2a4 JH |
90 | mv "$dotest/patch-merge-base+" "$dotest/patch-merge-base" |
91 | mv "$dotest/patch-merge-tmp-index" "$dotest/patch-merge-index" | |
fd7bcfb5 JH |
92 | else |
93 | cannot_fallback "Did you hand edit your patch? | |
94 | It does not apply to blobs recorded in its index." | |
d1c5f2a4 JH |
95 | fi |
96 | ||
97 | test -f "$dotest/patch-merge-index" && | |
5be60078 | 98 | his_tree=$(GIT_INDEX_FILE="$dotest/patch-merge-index" git write-tree) && |
d1c5f2a4 JH |
99 | orig_tree=$(cat "$dotest/patch-merge-base") && |
100 | rm -fr "$dotest"/patch-merge-* || exit 1 | |
101 | ||
102 | echo Falling back to patching base and 3-way merge... | |
103 | ||
104 | # This is not so wrong. Depending on which base we picked, | |
105 | # orig_tree may be wildly different from ours, but his_tree | |
106 | # has the same set of wildly different changes in parts the | |
579c9bb1 | 107 | # patch did not touch, so recursive ends up canceling them, |
d1c5f2a4 JH |
108 | # saying that we reverted all those changes. |
109 | ||
2e6e3e82 | 110 | eval GITHEAD_$his_tree='"$FIRSTLINE"' |
579c9bb1 SP |
111 | export GITHEAD_$his_tree |
112 | git-merge-recursive $orig_tree -- HEAD $his_tree || { | |
b4372ef1 | 113 | git rerere |
d1c5f2a4 JH |
114 | echo Failed to merge in the changes. |
115 | exit 1 | |
116 | } | |
579c9bb1 | 117 | unset GITHEAD_$his_tree |
d1c5f2a4 JH |
118 | } |
119 | ||
120 | prec=4 | |
3f0a8f3c GP |
121 | dotest=.dotest sign= utf8=t keep= skip= interactive= resolved= binary= |
122 | resolvemsg= resume= | |
67dad687 | 123 | git_apply_opt= |
d1c5f2a4 | 124 | |
822f7c73 | 125 | while test $# != 0 |
d1c5f2a4 JH |
126 | do |
127 | case "$1" in | |
78443d90 PH |
128 | -i|--interactive) |
129 | interactive=t ;; | |
130 | -b|--binary) | |
131 | binary=t ;; | |
132 | -3|--3way) | |
133 | threeway=t ;; | |
dfdd7e66 | 134 | -s|--signoff) |
78443d90 PH |
135 | sign=t ;; |
136 | -u|--utf8) | |
137 | utf8=t ;; # this is now default | |
138 | --no-utf8) | |
139 | utf8= ;; | |
140 | -k|--keep) | |
141 | keep=t ;; | |
142 | -r|--resolved) | |
143 | resolved=t ;; | |
144 | --skip) | |
145 | skip=t ;; | |
146 | -d|--dotest) | |
147 | shift; dotest=$1;; | |
148 | --resolvemsg) | |
149 | shift; resolvemsg=$1 ;; | |
150 | --whitespace) | |
151 | git_apply_opt="$git_apply_opt $1=$2"; shift ;; | |
152 | -C|-p) | |
153 | git_apply_opt="$git_apply_opt $1$2"; shift ;; | |
d1c5f2a4 | 154 | --) |
78443d90 | 155 | shift; break ;; |
d1c5f2a4 | 156 | *) |
78443d90 | 157 | usage ;; |
d1c5f2a4 | 158 | esac |
78443d90 | 159 | shift |
d1c5f2a4 JH |
160 | done |
161 | ||
0c15cc92 JH |
162 | # If the dotest directory exists, but we have finished applying all the |
163 | # patches in them, clear it out. | |
d1c5f2a4 JH |
164 | if test -d "$dotest" && |
165 | last=$(cat "$dotest/last") && | |
166 | next=$(cat "$dotest/next") && | |
167 | test $# != 0 && | |
168 | test "$next" -gt "$last" | |
169 | then | |
170 | rm -fr "$dotest" | |
171 | fi | |
172 | ||
173 | if test -d "$dotest" | |
174 | then | |
c95b1389 JH |
175 | case "$#,$skip$resolved" in |
176 | 0,*t*) | |
177 | # Explicit resume command and we do not have file, so | |
178 | # we are happy. | |
179 | : ;; | |
180 | 0,) | |
181 | # No file input but without resume parameters; catch | |
182 | # user error to feed us a patch from standard input | |
183 | # when there is already .dotest. This is somewhat | |
184 | # unreliable -- stdin could be /dev/null for example | |
185 | # and the caller did not intend to feed us a patch but | |
186 | # wanted to continue unattended. | |
187 | tty -s | |
188 | ;; | |
189 | *) | |
190 | false | |
191 | ;; | |
192 | esac || | |
193 | die "previous dotest directory $dotest still exists but mbox given." | |
271440e3 | 194 | resume=yes |
d1c5f2a4 | 195 | else |
0c15cc92 JH |
196 | # Make sure we are not given --skip nor --resolved |
197 | test ",$skip,$resolved," = ,,, || | |
cc120056 | 198 | die "Resolve operation not in progress, we are not resuming." |
d1c5f2a4 JH |
199 | |
200 | # Start afresh. | |
201 | mkdir -p "$dotest" || exit | |
202 | ||
5be60078 | 203 | git mailsplit -d"$prec" -o"$dotest" -b -- "$@" > "$dotest/last" || { |
d1c5f2a4 JH |
204 | rm -fr "$dotest" |
205 | exit 1 | |
206 | } | |
207 | ||
8c31cb82 JH |
208 | # -b, -s, -u, -k and --whitespace flags are kept for the |
209 | # resuming session after a patch failure. | |
0c15cc92 | 210 | # -3 and -i can and must be given when resuming. |
087b6742 | 211 | echo "$binary" >"$dotest/binary" |
8c31cb82 | 212 | echo " $ws" >"$dotest/whitespace" |
d1c5f2a4 JH |
213 | echo "$sign" >"$dotest/sign" |
214 | echo "$utf8" >"$dotest/utf8" | |
215 | echo "$keep" >"$dotest/keep" | |
d1c5f2a4 JH |
216 | echo 1 >"$dotest/next" |
217 | fi | |
218 | ||
0c15cc92 JH |
219 | case "$resolved" in |
220 | '') | |
38762c47 | 221 | files=$(git diff-index --cached --name-only HEAD --) || exit |
0c15cc92 JH |
222 | if [ "$files" ]; then |
223 | echo "Dirty index: cannot apply patches (dirty: $files)" >&2 | |
224 | exit 1 | |
225 | fi | |
226 | esac | |
227 | ||
087b6742 JH |
228 | if test "$(cat "$dotest/binary")" = t |
229 | then | |
230 | binary=--allow-binary-replacement | |
231 | fi | |
d1c5f2a4 JH |
232 | if test "$(cat "$dotest/utf8")" = t |
233 | then | |
234 | utf8=-u | |
bb1091a4 JH |
235 | else |
236 | utf8=-n | |
d1c5f2a4 JH |
237 | fi |
238 | if test "$(cat "$dotest/keep")" = t | |
239 | then | |
240 | keep=-k | |
241 | fi | |
8c31cb82 | 242 | ws=`cat "$dotest/whitespace"` |
d1c5f2a4 JH |
243 | if test "$(cat "$dotest/sign")" = t |
244 | then | |
245 | SIGNOFF=`git-var GIT_COMMITTER_IDENT | sed -e ' | |
246 | s/>.*/>/ | |
247 | s/^/Signed-off-by: /' | |
248 | ` | |
249 | else | |
250 | SIGNOFF= | |
251 | fi | |
d1c5f2a4 JH |
252 | |
253 | last=`cat "$dotest/last"` | |
254 | this=`cat "$dotest/next"` | |
255 | if test "$skip" = t | |
256 | then | |
b4372ef1 | 257 | git rerere clear |
d1c5f2a4 | 258 | this=`expr "$this" + 1` |
69224716 | 259 | resume= |
d1c5f2a4 JH |
260 | fi |
261 | ||
262 | if test "$this" -gt "$last" | |
263 | then | |
264 | echo Nothing to do. | |
265 | rm -fr "$dotest" | |
266 | exit | |
267 | fi | |
268 | ||
269 | while test "$this" -le "$last" | |
270 | do | |
271 | msgnum=`printf "%0${prec}d" $this` | |
272 | next=`expr "$this" + 1` | |
273 | test -f "$dotest/$msgnum" || { | |
69224716 | 274 | resume= |
d1c5f2a4 JH |
275 | go_next |
276 | continue | |
277 | } | |
0c15cc92 JH |
278 | |
279 | # If we are not resuming, parse and extract the patch information | |
280 | # into separate files: | |
281 | # - info records the authorship and title | |
282 | # - msg is the rest of commit log message | |
283 | # - patch is the patch body. | |
284 | # | |
285 | # When we are resuming, these files are either already prepared | |
286 | # by the user, or the user can tell us to do so by --resolved flag. | |
271440e3 JH |
287 | case "$resume" in |
288 | '') | |
5be60078 | 289 | git mailinfo $keep $utf8 "$dotest/msg" "$dotest/patch" \ |
271440e3 JH |
290 | <"$dotest/$msgnum" >"$dotest/info" || |
291 | stop_here $this | |
ca193cf1 JS |
292 | |
293 | # skip pine's internal folder data | |
294 | grep '^Author: Mail System Internal Data$' \ | |
295 | <"$dotest"/info >/dev/null && | |
296 | go_next && continue | |
297 | ||
87ab7992 | 298 | test -s $dotest/patch || { |
6777c380 | 299 | echo "Patch is empty. Was it split wrong?" |
87ab7992 DZ |
300 | stop_here $this |
301 | } | |
2e6e3e82 LT |
302 | SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$dotest/info")" |
303 | case "$keep_subject" in -k) SUBJECT="[PATCH] $SUBJECT" ;; esac | |
304 | ||
29df2385 | 305 | (printf '%s\n\n' "$SUBJECT"; cat "$dotest/msg") | |
2e6e3e82 | 306 | git stripspace > "$dotest/msg-clean" |
271440e3 JH |
307 | ;; |
308 | esac | |
d1c5f2a4 JH |
309 | |
310 | GIT_AUTHOR_NAME="$(sed -n '/^Author/ s/Author: //p' "$dotest/info")" | |
311 | GIT_AUTHOR_EMAIL="$(sed -n '/^Email/ s/Email: //p' "$dotest/info")" | |
312 | GIT_AUTHOR_DATE="$(sed -n '/^Date/ s/Date: //p' "$dotest/info")" | |
e0e3ba20 | 313 | |
3b78959e | 314 | if test -z "$GIT_AUTHOR_EMAIL" |
e0e3ba20 | 315 | then |
3b78959e | 316 | echo "Patch does not have a valid e-mail address." |
e0e3ba20 JH |
317 | stop_here $this |
318 | fi | |
319 | ||
2c674191 | 320 | export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE |
d1c5f2a4 | 321 | |
4bfb6b62 JH |
322 | case "$resume" in |
323 | '') | |
324 | if test '' != "$SIGNOFF" | |
325 | then | |
d1c5f2a4 | 326 | LAST_SIGNED_OFF_BY=` |
4bfb6b62 JH |
327 | sed -ne '/^Signed-off-by: /p' \ |
328 | "$dotest/msg-clean" | | |
329 | tail -n 1 | |
d1c5f2a4 | 330 | ` |
4bfb6b62 JH |
331 | ADD_SIGNOFF=` |
332 | test "$LAST_SIGNED_OFF_BY" = "$SIGNOFF" || { | |
d1c5f2a4 JH |
333 | test '' = "$LAST_SIGNED_OFF_BY" && echo |
334 | echo "$SIGNOFF" | |
4bfb6b62 JH |
335 | }` |
336 | else | |
d1c5f2a4 | 337 | ADD_SIGNOFF= |
4bfb6b62 JH |
338 | fi |
339 | { | |
d1c5f2a4 JH |
340 | if test -s "$dotest/msg-clean" |
341 | then | |
d1c5f2a4 JH |
342 | cat "$dotest/msg-clean" |
343 | fi | |
344 | if test '' != "$ADD_SIGNOFF" | |
345 | then | |
346 | echo "$ADD_SIGNOFF" | |
347 | fi | |
4bfb6b62 JH |
348 | } >"$dotest/final-commit" |
349 | ;; | |
0c15cc92 | 350 | *) |
6d28644d | 351 | case "$resolved$interactive" in |
0c15cc92 JH |
352 | tt) |
353 | # This is used only for interactive view option. | |
38762c47 | 354 | git diff-index -p --cached HEAD -- >"$dotest/patch" |
0c15cc92 JH |
355 | ;; |
356 | esac | |
4bfb6b62 | 357 | esac |
d1c5f2a4 | 358 | |
4bfb6b62 | 359 | resume= |
d1c5f2a4 JH |
360 | if test "$interactive" = t |
361 | then | |
a1451104 JH |
362 | test -t 0 || |
363 | die "cannot be interactive without stdin connected to a terminal." | |
d1c5f2a4 JH |
364 | action=again |
365 | while test "$action" = again | |
366 | do | |
367 | echo "Commit Body is:" | |
368 | echo "--------------------------" | |
369 | cat "$dotest/final-commit" | |
370 | echo "--------------------------" | |
9754563c | 371 | printf "Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all " |
d1c5f2a4 JH |
372 | read reply |
373 | case "$reply" in | |
f89ad67f JH |
374 | [yY]*) action=yes ;; |
375 | [aA]*) action=yes interactive= ;; | |
376 | [nN]*) action=skip ;; | |
ef0c2abf | 377 | [eE]*) git_editor "$dotest/final-commit" |
d1c5f2a4 | 378 | action=again ;; |
f89ad67f JH |
379 | [vV]*) action=again |
380 | LESS=-S ${PAGER:-less} "$dotest/patch" ;; | |
381 | *) action=again ;; | |
d1c5f2a4 JH |
382 | esac |
383 | done | |
384 | else | |
385 | action=yes | |
386 | fi | |
11dc4e70 | 387 | FIRSTLINE=$(head -1 "$dotest/final-commit") |
d1c5f2a4 JH |
388 | |
389 | if test $action = skip | |
390 | then | |
391 | go_next | |
392 | continue | |
393 | fi | |
394 | ||
395 | if test -x "$GIT_DIR"/hooks/applypatch-msg | |
396 | then | |
397 | "$GIT_DIR"/hooks/applypatch-msg "$dotest/final-commit" || | |
398 | stop_here $this | |
399 | fi | |
400 | ||
2e6e3e82 | 401 | printf 'Applying %s\n' "$FIRSTLINE" |
d1c5f2a4 | 402 | |
0c15cc92 JH |
403 | case "$resolved" in |
404 | '') | |
5be60078 | 405 | git apply $git_apply_opt $binary --index "$dotest/patch" |
0c15cc92 JH |
406 | apply_status=$? |
407 | ;; | |
408 | t) | |
409 | # Resolved means the user did all the hard work, and | |
410 | # we do not have to do any patch application. Just | |
411 | # trust what the user has in the index file and the | |
412 | # working tree. | |
413 | resolved= | |
38762c47 | 414 | git diff-index --quiet --cached HEAD -- && { |
64646d11 | 415 | echo "No changes - did you forget to use 'git add'?" |
ced9456a | 416 | stop_here_user_resolve $this |
06aff47b | 417 | } |
5be60078 | 418 | unmerged=$(git ls-files -u) |
c1d1128b JH |
419 | if test -n "$unmerged" |
420 | then | |
421 | echo "You still have unmerged paths in your index" | |
64646d11 | 422 | echo "did you forget to use 'git add'?" |
ced9456a | 423 | stop_here_user_resolve $this |
c1d1128b | 424 | fi |
0c15cc92 | 425 | apply_status=0 |
b4372ef1 | 426 | git rerere |
0c15cc92 JH |
427 | ;; |
428 | esac | |
429 | ||
d1c5f2a4 JH |
430 | if test $apply_status = 1 && test "$threeway" = t |
431 | then | |
73319032 | 432 | if (fall_back_3way) |
d1c5f2a4 | 433 | then |
73319032 JH |
434 | # Applying the patch to an earlier tree and merging the |
435 | # result may have produced the same tree as ours. | |
38762c47 | 436 | git diff-index --quiet --cached HEAD -- && { |
06aff47b AR |
437 | echo No changes -- Patch already applied. |
438 | go_next | |
439 | continue | |
440 | } | |
73319032 JH |
441 | # clear apply_status -- we have successfully merged. |
442 | apply_status=0 | |
d1c5f2a4 JH |
443 | fi |
444 | fi | |
445 | if test $apply_status != 0 | |
446 | then | |
447 | echo Patch failed at $msgnum. | |
ced9456a | 448 | stop_here_user_resolve $this |
d1c5f2a4 JH |
449 | fi |
450 | ||
451 | if test -x "$GIT_DIR"/hooks/pre-applypatch | |
452 | then | |
453 | "$GIT_DIR"/hooks/pre-applypatch || stop_here $this | |
454 | fi | |
455 | ||
5be60078 | 456 | tree=$(git write-tree) && |
5be60078 JH |
457 | parent=$(git rev-parse --verify HEAD) && |
458 | commit=$(git commit-tree $tree -p $parent <"$dotest/final-commit") && | |
2e6e3e82 | 459 | git update-ref -m "$GIT_REFLOG_ACTION: $FIRSTLINE" HEAD $commit $parent || |
d1c5f2a4 JH |
460 | stop_here $this |
461 | ||
462 | if test -x "$GIT_DIR"/hooks/post-applypatch | |
463 | then | |
464 | "$GIT_DIR"/hooks/post-applypatch | |
465 | fi | |
466 | ||
467 | go_next | |
468 | done | |
469 | ||
e0cd252e MS |
470 | git gc --auto |
471 | ||
d1c5f2a4 | 472 | rm -fr "$dotest" |