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Commit | Line | Data |
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1b1dce4b JS |
1 | #!/bin/sh |
2 | # | |
3 | # Copyright (c) 2006 Johannes E. Schindelin | |
4 | ||
5 | # SHORT DESCRIPTION | |
6 | # | |
7 | # This script makes it easy to fix up commits in the middle of a series, | |
8 | # and rearrange commits. | |
9 | # | |
10 | # The original idea comes from Eric W. Biederman, in | |
11 | # http://article.gmane.org/gmane.comp.version-control.git/22407 | |
12 | ||
f09c9b8c JS |
13 | USAGE='(--continue | --abort | --skip | [--preserve-merges] [--verbose] |
14 | [--onto <branch>] <upstream> [<branch>])' | |
1b1dce4b | 15 | |
8f321a39 | 16 | OPTIONS_SPEC= |
1b1dce4b JS |
17 | . git-sh-setup |
18 | require_work_tree | |
19 | ||
20 | DOTEST="$GIT_DIR/.dotest-merge" | |
c22486c9 | 21 | TODO="$DOTEST"/git-rebase-todo |
1b1dce4b | 22 | DONE="$DOTEST"/done |
6368f3f8 JS |
23 | MSG="$DOTEST"/message |
24 | SQUASH_MSG="$DOTEST"/message-squash | |
f09c9b8c JS |
25 | REWRITTEN="$DOTEST"/rewritten |
26 | PRESERVE_MERGES= | |
1b1dce4b JS |
27 | STRATEGY= |
28 | VERBOSE= | |
8e4a91bd JS |
29 | test -d "$REWRITTEN" && PRESERVE_MERGES=t |
30 | test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)" | |
31 | test -f "$DOTEST"/verbose && VERBOSE=t | |
1b1dce4b | 32 | |
804c7174 WC |
33 | GIT_CHERRY_PICK_HELP=" After resolving the conflicts, |
34 | mark the corrected paths with 'git add <paths>', and | |
35 | run 'git rebase --continue'" | |
36 | export GIT_CHERRY_PICK_HELP | |
37 | ||
1b1dce4b JS |
38 | warn () { |
39 | echo "$*" >&2 | |
40 | } | |
41 | ||
dfa49f33 JS |
42 | output () { |
43 | case "$VERBOSE" in | |
44 | '') | |
5166810b | 45 | output=$("$@" 2>&1 ) |
dfa49f33 | 46 | status=$? |
5166810b | 47 | test $status != 0 && printf "%s\n" "$output" |
dfa49f33 | 48 | return $status |
376ccb8c | 49 | ;; |
dfa49f33 JS |
50 | *) |
51 | "$@" | |
376ccb8c | 52 | ;; |
dfa49f33 JS |
53 | esac |
54 | } | |
55 | ||
1b1dce4b JS |
56 | require_clean_work_tree () { |
57 | # test if working tree is dirty | |
58 | git rev-parse --verify HEAD > /dev/null && | |
6848d58c JS |
59 | git update-index --ignore-submodules --refresh && |
60 | git diff-files --quiet --ignore-submodules && | |
61 | git diff-index --cached --quiet HEAD --ignore-submodules -- || | |
1b1dce4b JS |
62 | die "Working tree is dirty" |
63 | } | |
64 | ||
65 | ORIG_REFLOG_ACTION="$GIT_REFLOG_ACTION" | |
66 | ||
67 | comment_for_reflog () { | |
68 | case "$ORIG_REFLOG_ACTION" in | |
69 | ''|rebase*) | |
70 | GIT_REFLOG_ACTION="rebase -i ($1)" | |
71 | export GIT_REFLOG_ACTION | |
376ccb8c | 72 | ;; |
1b1dce4b JS |
73 | esac |
74 | } | |
75 | ||
4e673877 | 76 | last_count= |
1b1dce4b JS |
77 | mark_action_done () { |
78 | sed -e 1q < "$TODO" >> "$DONE" | |
79 | sed -e 1d < "$TODO" >> "$TODO".new | |
80 | mv -f "$TODO".new "$TODO" | |
aadbe44f JK |
81 | count=$(grep -c '^[^#]' < "$DONE") |
82 | total=$(($count+$(grep -c '^[^#]' < "$TODO"))) | |
4e673877 JH |
83 | if test "$last_count" != "$count" |
84 | then | |
85 | last_count=$count | |
86 | printf "Rebasing (%d/%d)\r" $count $total | |
87 | test -z "$VERBOSE" || echo | |
88 | fi | |
1b1dce4b JS |
89 | } |
90 | ||
91 | make_patch () { | |
be6ff208 JS |
92 | parent_sha1=$(git rev-parse --verify "$1"^) || |
93 | die "Cannot get patch for $1^" | |
f3d5e463 | 94 | git diff-tree -p "$parent_sha1".."$1" > "$DOTEST"/patch |
be6ff208 JS |
95 | test -f "$DOTEST"/message || |
96 | git cat-file commit "$1" | sed "1,/^$/d" > "$DOTEST"/message | |
97 | test -f "$DOTEST"/author-script || | |
98 | get_author_ident_from_commit "$1" > "$DOTEST"/author-script | |
1b1dce4b JS |
99 | } |
100 | ||
101 | die_with_patch () { | |
102 | make_patch "$1" | |
ecfe72ff | 103 | git rerere |
1b1dce4b JS |
104 | die "$2" |
105 | } | |
106 | ||
c54b7817 JS |
107 | die_abort () { |
108 | rm -rf "$DOTEST" | |
109 | die "$1" | |
110 | } | |
111 | ||
376ccb8c | 112 | has_action () { |
aadbe44f | 113 | grep '^[^#]' "$1" >/dev/null |
376ccb8c JS |
114 | } |
115 | ||
1b1dce4b | 116 | pick_one () { |
1d25c8cf JS |
117 | no_ff= |
118 | case "$1" in -n) sha1=$2; no_ff=t ;; *) sha1=$1 ;; esac | |
dfa49f33 | 119 | output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1" |
f09c9b8c JS |
120 | test -d "$REWRITTEN" && |
121 | pick_one_preserving_merges "$@" && return | |
376ccb8c JS |
122 | parent_sha1=$(git rev-parse --verify $sha1^) || |
123 | die "Could not get the parent of $sha1" | |
1b1dce4b | 124 | current_sha1=$(git rev-parse --verify HEAD) |
2858028e | 125 | if test "$no_ff$current_sha1" = "$parent_sha1"; then |
dfa49f33 JS |
126 | output git reset --hard $sha1 |
127 | test "a$1" = a-n && output git reset --soft $current_sha1 | |
1b1dce4b | 128 | sha1=$(git rev-parse --short $sha1) |
dfa49f33 | 129 | output warn Fast forward to $sha1 |
1b1dce4b | 130 | else |
2a9c53e0 | 131 | output git cherry-pick "$@" |
1b1dce4b JS |
132 | fi |
133 | } | |
134 | ||
f09c9b8c JS |
135 | pick_one_preserving_merges () { |
136 | case "$1" in -n) sha1=$2 ;; *) sha1=$1 ;; esac | |
137 | sha1=$(git rev-parse $sha1) | |
138 | ||
3b38ec16 | 139 | if test -f "$DOTEST"/current-commit |
f09c9b8c JS |
140 | then |
141 | current_commit=$(cat "$DOTEST"/current-commit) && | |
142 | git rev-parse HEAD > "$REWRITTEN"/$current_commit && | |
143 | rm "$DOTEST"/current-commit || | |
144 | die "Cannot write current commit's replacement sha1" | |
145 | fi | |
146 | ||
147 | # rewrite parents; if none were rewritten, we can fast-forward. | |
148 | fast_forward=t | |
149 | preserve=t | |
150 | new_parents= | |
376ccb8c | 151 | for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -f2-) |
f09c9b8c | 152 | do |
3b38ec16 | 153 | if test -f "$REWRITTEN"/$p |
f09c9b8c JS |
154 | then |
155 | preserve=f | |
156 | new_p=$(cat "$REWRITTEN"/$p) | |
157 | test $p != $new_p && fast_forward=f | |
158 | case "$new_parents" in | |
159 | *$new_p*) | |
160 | ;; # do nothing; that parent is already there | |
161 | *) | |
162 | new_parents="$new_parents $new_p" | |
376ccb8c | 163 | ;; |
f09c9b8c | 164 | esac |
1c5fa0a1 SB |
165 | else |
166 | new_parents="$new_parents $p" | |
f09c9b8c JS |
167 | fi |
168 | done | |
169 | case $fast_forward in | |
170 | t) | |
dfa49f33 | 171 | output warn "Fast forward to $sha1" |
376ccb8c | 172 | test $preserve = f || echo $sha1 > "$REWRITTEN"/$sha1 |
f09c9b8c JS |
173 | ;; |
174 | f) | |
175 | test "a$1" = a-n && die "Refusing to squash a merge: $sha1" | |
176 | ||
376ccb8c | 177 | first_parent=$(expr "$new_parents" : ' \([^ ]*\)') |
f09c9b8c | 178 | # detach HEAD to current parent |
dfa49f33 | 179 | output git checkout $first_parent 2> /dev/null || |
f09c9b8c JS |
180 | die "Cannot move HEAD to $first_parent" |
181 | ||
182 | echo $sha1 > "$DOTEST"/current-commit | |
183 | case "$new_parents" in | |
376ccb8c | 184 | ' '*' '*) |
f09c9b8c JS |
185 | # redo merge |
186 | author_script=$(get_author_ident_from_commit $sha1) | |
187 | eval "$author_script" | |
376ccb8c | 188 | msg="$(git cat-file commit $sha1 | sed -e '1,/^$/d')" |
f91333d6 BS |
189 | # No point in merging the first parent, that's HEAD |
190 | new_parents=${new_parents# $first_parent} | |
ae830ed7 JS |
191 | if ! GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \ |
192 | GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \ | |
193 | GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \ | |
194 | output git merge $STRATEGY -m "$msg" \ | |
195 | $new_parents | |
f09c9b8c | 196 | then |
ecfe72ff | 197 | git rerere |
376ccb8c | 198 | printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG |
18640d99 | 199 | die Error redoing merge $sha1 |
f09c9b8c JS |
200 | fi |
201 | ;; | |
202 | *) | |
2a9c53e0 | 203 | output git cherry-pick "$@" || |
f09c9b8c | 204 | die_with_patch $sha1 "Could not pick $sha1" |
376ccb8c | 205 | ;; |
f09c9b8c | 206 | esac |
376ccb8c | 207 | ;; |
f09c9b8c JS |
208 | esac |
209 | } | |
210 | ||
6368f3f8 JS |
211 | nth_string () { |
212 | case "$1" in | |
213 | *1[0-9]|*[04-9]) echo "$1"th;; | |
214 | *1) echo "$1"st;; | |
215 | *2) echo "$1"nd;; | |
216 | *3) echo "$1"rd;; | |
217 | esac | |
218 | } | |
219 | ||
220 | make_squash_message () { | |
3b38ec16 | 221 | if test -f "$SQUASH_MSG"; then |
c7965afd | 222 | COUNT=$(($(sed -n "s/^# This is [^0-9]*\([1-9][0-9]*\).*/\1/p" \ |
b4ce54fc | 223 | < "$SQUASH_MSG" | sed -ne '$p')+1)) |
6368f3f8 | 224 | echo "# This is a combination of $COUNT commits." |
8ad1065e JH |
225 | sed -e 1d -e '2,/^./{ |
226 | /^$/d | |
227 | }' <"$SQUASH_MSG" | |
6368f3f8 JS |
228 | else |
229 | COUNT=2 | |
230 | echo "# This is a combination of two commits." | |
231 | echo "# The first commit's message is:" | |
232 | echo | |
233 | git cat-file commit HEAD | sed -e '1,/^$/d' | |
6368f3f8 | 234 | fi |
8ad1065e | 235 | echo |
6368f3f8 JS |
236 | echo "# This is the $(nth_string $COUNT) commit message:" |
237 | echo | |
238 | git cat-file commit $1 | sed -e '1,/^$/d' | |
239 | } | |
240 | ||
241 | peek_next_command () { | |
242 | sed -n "1s/ .*$//p" < "$TODO" | |
243 | } | |
244 | ||
1b1dce4b | 245 | do_next () { |
376ccb8c JS |
246 | rm -f "$DOTEST"/message "$DOTEST"/author-script \ |
247 | "$DOTEST"/amend || exit | |
1b1dce4b JS |
248 | read command sha1 rest < "$TODO" |
249 | case "$command" in | |
376ccb8c | 250 | '#'*|'') |
1b1dce4b | 251 | mark_action_done |
1b1dce4b | 252 | ;; |
f8babc4d | 253 | pick|p) |
1b1dce4b JS |
254 | comment_for_reflog pick |
255 | ||
256 | mark_action_done | |
257 | pick_one $sha1 || | |
258 | die_with_patch $sha1 "Could not apply $sha1... $rest" | |
259 | ;; | |
f8babc4d | 260 | edit|e) |
1b1dce4b JS |
261 | comment_for_reflog edit |
262 | ||
263 | mark_action_done | |
264 | pick_one $sha1 || | |
265 | die_with_patch $sha1 "Could not apply $sha1... $rest" | |
266 | make_patch $sha1 | |
be6ff208 | 267 | : > "$DOTEST"/amend |
1b1dce4b JS |
268 | warn |
269 | warn "You can amend the commit now, with" | |
270 | warn | |
271 | warn " git commit --amend" | |
272 | warn | |
0460fb44 JS |
273 | warn "Once you are satisfied with your changes, run" |
274 | warn | |
275 | warn " git rebase --continue" | |
276 | warn | |
1b1dce4b JS |
277 | exit 0 |
278 | ;; | |
f8babc4d | 279 | squash|s) |
1b1dce4b JS |
280 | comment_for_reflog squash |
281 | ||
376ccb8c | 282 | has_action "$DONE" || |
1b1dce4b JS |
283 | die "Cannot 'squash' without a previous commit" |
284 | ||
285 | mark_action_done | |
6368f3f8 JS |
286 | make_squash_message $sha1 > "$MSG" |
287 | case "$(peek_next_command)" in | |
f8babc4d | 288 | squash|s) |
6368f3f8 | 289 | EDIT_COMMIT= |
91e1ee77 | 290 | USE_OUTPUT=output |
6368f3f8 | 291 | cp "$MSG" "$SQUASH_MSG" |
376ccb8c | 292 | ;; |
6368f3f8 JS |
293 | *) |
294 | EDIT_COMMIT=-e | |
91e1ee77 | 295 | USE_OUTPUT= |
376ccb8c JS |
296 | rm -f "$SQUASH_MSG" || exit |
297 | ;; | |
6368f3f8 JS |
298 | esac |
299 | ||
793ad041 | 300 | failed=f |
81ab1cb4 | 301 | author_script=$(get_author_ident_from_commit HEAD) |
dfa49f33 | 302 | output git reset --soft HEAD^ |
fb47cfbd | 303 | pick_one -n $sha1 || failed=t |
18640d99 | 304 | echo "$author_script" > "$DOTEST"/author-script |
dbedf972 SP |
305 | if test $failed = f |
306 | then | |
1b1dce4b JS |
307 | # This is like --amend, but with a different message |
308 | eval "$author_script" | |
ae830ed7 JS |
309 | GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \ |
310 | GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \ | |
311 | GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \ | |
dbedf972 SP |
312 | $USE_OUTPUT git commit --no-verify -F "$MSG" $EDIT_COMMIT || failed=t |
313 | fi | |
314 | if test $failed = t | |
315 | then | |
1b1dce4b JS |
316 | cp "$MSG" "$GIT_DIR"/MERGE_MSG |
317 | warn | |
318 | warn "Could not apply $sha1... $rest" | |
1b1dce4b | 319 | die_with_patch $sha1 "" |
dbedf972 | 320 | fi |
1b1dce4b JS |
321 | ;; |
322 | *) | |
323 | warn "Unknown command: $command $sha1 $rest" | |
324 | die_with_patch $sha1 "Please fix this in the file $TODO." | |
376ccb8c | 325 | ;; |
1b1dce4b JS |
326 | esac |
327 | test -s "$TODO" && return | |
328 | ||
68a163c9 JS |
329 | comment_for_reflog finish && |
330 | HEADNAME=$(cat "$DOTEST"/head-name) && | |
331 | OLDHEAD=$(cat "$DOTEST"/head) && | |
332 | SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) && | |
3b38ec16 | 333 | if test -d "$REWRITTEN" |
f09c9b8c JS |
334 | then |
335 | test -f "$DOTEST"/current-commit && | |
336 | current_commit=$(cat "$DOTEST"/current-commit) && | |
337 | git rev-parse HEAD > "$REWRITTEN"/$current_commit | |
34454e85 JS |
338 | if test -f "$REWRITTEN"/$OLDHEAD |
339 | then | |
340 | NEWHEAD=$(cat "$REWRITTEN"/$OLDHEAD) | |
341 | else | |
342 | NEWHEAD=$OLDHEAD | |
343 | fi | |
f09c9b8c JS |
344 | else |
345 | NEWHEAD=$(git rev-parse HEAD) | |
346 | fi && | |
73697a0b JS |
347 | case $HEADNAME in |
348 | refs/*) | |
349 | message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" && | |
350 | git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD && | |
351 | git symbolic-ref HEAD $HEADNAME | |
352 | ;; | |
353 | esac && { | |
3df0a859 | 354 | test ! -f "$DOTEST"/verbose || |
f3d5e463 | 355 | git diff-tree --stat $(cat "$DOTEST"/head)..HEAD |
3df0a859 | 356 | } && |
1b1dce4b | 357 | rm -rf "$DOTEST" && |
73697a0b | 358 | git gc --auto && |
1b1dce4b JS |
359 | warn "Successfully rebased and updated $HEADNAME." |
360 | ||
361 | exit | |
362 | } | |
363 | ||
364 | do_rest () { | |
365 | while : | |
366 | do | |
367 | do_next | |
368 | done | |
1b1dce4b JS |
369 | } |
370 | ||
822f7c73 | 371 | while test $# != 0 |
1b1dce4b JS |
372 | do |
373 | case "$1" in | |
374 | --continue) | |
375 | comment_for_reflog continue | |
376 | ||
377 | test -d "$DOTEST" || die "No interactive rebase running" | |
378 | ||
ab119032 JH |
379 | # Sanity check |
380 | git rev-parse --verify HEAD >/dev/null || | |
381 | die "Cannot read HEAD" | |
6848d58c JS |
382 | git update-index --ignore-submodules --refresh && |
383 | git diff-files --quiet --ignore-submodules || | |
ab119032 JH |
384 | die "Working tree is dirty" |
385 | ||
386 | # do we have anything to commit? | |
6848d58c | 387 | if git diff-index --cached --quiet --ignore-submodules HEAD -- |
03270628 | 388 | then |
ab119032 JH |
389 | : Nothing to commit -- skip this |
390 | else | |
391 | . "$DOTEST"/author-script || | |
392 | die "Cannot find the author identity" | |
393 | if test -f "$DOTEST"/amend | |
394 | then | |
395 | git reset --soft HEAD^ || | |
396 | die "Cannot rewind the HEAD" | |
397 | fi | |
398 | export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE && | |
399 | git commit --no-verify -F "$DOTEST"/message -e || | |
dbedf972 | 400 | die "Could not commit staged changes." |
03270628 | 401 | fi |
18640d99 | 402 | |
1b1dce4b JS |
403 | require_clean_work_tree |
404 | do_rest | |
405 | ;; | |
406 | --abort) | |
407 | comment_for_reflog abort | |
408 | ||
ecfe72ff | 409 | git rerere clear |
1b1dce4b JS |
410 | test -d "$DOTEST" || die "No interactive rebase running" |
411 | ||
412 | HEADNAME=$(cat "$DOTEST"/head-name) | |
413 | HEAD=$(cat "$DOTEST"/head) | |
73697a0b JS |
414 | case $HEADNAME in |
415 | refs/*) | |
416 | git symbolic-ref HEAD $HEADNAME | |
417 | ;; | |
418 | esac && | |
dfa49f33 | 419 | output git reset --hard $HEAD && |
1b1dce4b JS |
420 | rm -rf "$DOTEST" |
421 | exit | |
422 | ;; | |
423 | --skip) | |
424 | comment_for_reflog skip | |
425 | ||
ecfe72ff | 426 | git rerere clear |
1b1dce4b JS |
427 | test -d "$DOTEST" || die "No interactive rebase running" |
428 | ||
dfa49f33 | 429 | output git reset --hard && do_rest |
1b1dce4b JS |
430 | ;; |
431 | -s|--strategy) | |
1b1dce4b JS |
432 | case "$#,$1" in |
433 | *,*=*) | |
b5e960b1 | 434 | STRATEGY="-s "$(expr "z$1" : 'z-[^=]*=\(.*\)') ;; |
1b1dce4b JS |
435 | 1,*) |
436 | usage ;; | |
437 | *) | |
438 | STRATEGY="-s $2" | |
439 | shift ;; | |
440 | esac | |
441 | ;; | |
65ae89bc | 442 | -m|--merge) |
1b1dce4b JS |
443 | # we use merge anyway |
444 | ;; | |
445 | -C*) | |
446 | die "Interactive rebase uses merge, so $1 does not make sense" | |
447 | ;; | |
c54b7817 | 448 | -v|--verbose) |
1b1dce4b JS |
449 | VERBOSE=t |
450 | ;; | |
f09c9b8c JS |
451 | -p|--preserve-merges) |
452 | PRESERVE_MERGES=t | |
453 | ;; | |
1b1dce4b JS |
454 | -i|--interactive) |
455 | # yeah, we know | |
456 | ;; | |
457 | ''|-h) | |
458 | usage | |
459 | ;; | |
460 | *) | |
461 | test -d "$DOTEST" && | |
462 | die "Interactive rebase already started" | |
463 | ||
464 | git var GIT_COMMITTER_IDENT >/dev/null || | |
465 | die "You need to set your committer info first" | |
466 | ||
467 | comment_for_reflog start | |
468 | ||
469 | ONTO= | |
470 | case "$1" in | |
471 | --onto) | |
472 | ONTO=$(git rev-parse --verify "$2") || | |
473 | die "Does not point to a valid commit: $2" | |
474 | shift; shift | |
475 | ;; | |
476 | esac | |
477 | ||
478 | require_clean_work_tree | |
479 | ||
69e66f55 JS |
480 | UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base" |
481 | test -z "$ONTO" && ONTO=$UPSTREAM | |
482 | ||
3b38ec16 | 483 | if test ! -z "$2" |
1b1dce4b | 484 | then |
dfa49f33 | 485 | output git show-ref --verify --quiet "refs/heads/$2" || |
1b1dce4b | 486 | die "Invalid branchname: $2" |
dfa49f33 | 487 | output git checkout "$2" || |
1b1dce4b JS |
488 | die "Could not checkout $2" |
489 | fi | |
490 | ||
491 | HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?" | |
5166810b MK |
492 | mkdir "$DOTEST" || die "Could not create temporary $DOTEST" |
493 | ||
1b1dce4b | 494 | : > "$DOTEST"/interactive || die "Could not mark as interactive" |
73697a0b JS |
495 | git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null || |
496 | echo "detached HEAD" > "$DOTEST"/head-name | |
1b1dce4b JS |
497 | |
498 | echo $HEAD > "$DOTEST"/head | |
499 | echo $UPSTREAM > "$DOTEST"/upstream | |
500 | echo $ONTO > "$DOTEST"/onto | |
8e4a91bd | 501 | test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy |
1b1dce4b | 502 | test t = "$VERBOSE" && : > "$DOTEST"/verbose |
3b38ec16 | 503 | if test t = "$PRESERVE_MERGES" |
f09c9b8c JS |
504 | then |
505 | # $REWRITTEN contains files for each commit that is | |
506 | # reachable by at least one merge base of $HEAD and | |
507 | # $UPSTREAM. They are not necessarily rewritten, but | |
508 | # their children might be. | |
509 | # This ensures that commits on merged, but otherwise | |
510 | # unrelated side branches are left alone. (Think "X" | |
511 | # in the man page's example.) | |
512 | mkdir "$REWRITTEN" && | |
513 | for c in $(git merge-base --all $HEAD $UPSTREAM) | |
514 | do | |
515 | echo $ONTO > "$REWRITTEN"/$c || | |
516 | die "Could not init rewritten commits" | |
517 | done | |
518 | MERGES_OPTION= | |
519 | else | |
520 | MERGES_OPTION=--no-merges | |
521 | fi | |
1b1dce4b | 522 | |
c54b7817 JS |
523 | SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM) |
524 | SHORTHEAD=$(git rev-parse --short $HEAD) | |
525 | SHORTONTO=$(git rev-parse --short $ONTO) | |
6047a234 JS |
526 | git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \ |
527 | --abbrev=7 --reverse --left-right --cherry-pick \ | |
528 | $UPSTREAM...$HEAD | \ | |
529 | sed -n "s/^>/pick /p" > "$TODO" | |
530 | cat >> "$TODO" << EOF | |
531 | ||
532 | # Rebase $SHORTUPSTREAM..$SHORTHEAD onto $SHORTONTO | |
1b1dce4b JS |
533 | # |
534 | # Commands: | |
88b1f0b8 MV |
535 | # p, pick = use commit |
536 | # e, edit = use commit, but stop for amending | |
537 | # s, squash = use commit, but meld into previous commit | |
82576ddb JS |
538 | # |
539 | # If you remove a line here THAT COMMIT WILL BE LOST. | |
6047a234 | 540 | # However, if you remove everything, the rebase will be aborted. |
82576ddb | 541 | # |
1b1dce4b | 542 | EOF |
1b1dce4b | 543 | |
376ccb8c | 544 | has_action "$TODO" || |
c54b7817 | 545 | die_abort "Nothing to do" |
1b1dce4b JS |
546 | |
547 | cp "$TODO" "$TODO".backup | |
ef0c2abf | 548 | git_editor "$TODO" || |
1b1dce4b JS |
549 | die "Could not execute editor" |
550 | ||
376ccb8c | 551 | has_action "$TODO" || |
c54b7817 JS |
552 | die_abort "Nothing to do" |
553 | ||
dfa49f33 | 554 | output git checkout $ONTO && do_rest |
376ccb8c | 555 | ;; |
1b1dce4b JS |
556 | esac |
557 | shift | |
558 | done |