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ef64bb32 AG |
1 | # This shell script fragment is sourced by git-rebase to implement its |
2 | # preserve-merges mode. | |
c42abfe7 AG |
3 | # |
4 | # Copyright (c) 2006 Johannes E. Schindelin | |
5 | # | |
c42abfe7 AG |
6 | # The file containing rebase commands, comments, and empty lines. |
7 | # This file is created by "git rebase -i" then edited by the user. As | |
8 | # the lines are processed, they are removed from the front of this | |
9 | # file and written to the tail of $done. | |
10 | todo="$state_dir"/git-rebase-todo | |
11 | ||
12 | # The rebase command lines that have already been processed. A line | |
13 | # is moved here when it is first handled, before any associated user | |
14 | # actions. | |
15 | done="$state_dir"/done | |
16 | ||
17 | # The commit message that is planned to be used for any changes that | |
18 | # need to be committed following a user interaction. | |
19 | msg="$state_dir"/message | |
20 | ||
21 | # The file into which is accumulated the suggested commit message for | |
22 | # squash/fixup commands. When the first of a series of squash/fixups | |
23 | # is seen, the file is created and the commit message from the | |
24 | # previous commit and from the first squash/fixup commit are written | |
25 | # to it. The commit message for each subsequent squash/fixup commit | |
26 | # is appended to the file as it is processed. | |
27 | # | |
28 | # The first line of the file is of the form | |
29 | # # This is a combination of $count commits. | |
30 | # where $count is the number of commits whose messages have been | |
31 | # written to the file so far (including the initial "pick" commit). | |
32 | # Each time that a commit message is processed, this line is read and | |
33 | # updated. It is deleted just before the combined commit is made. | |
34 | squash_msg="$state_dir"/message-squash | |
35 | ||
36 | # If the current series of squash/fixups has not yet included a squash | |
37 | # command, then this file exists and holds the commit message of the | |
38 | # original "pick" commit. (If the series ends without a "squash" | |
39 | # command, then this can be used as the commit message of the combined | |
40 | # commit without opening the editor.) | |
41 | fixup_msg="$state_dir"/message-fixup | |
42 | ||
43 | # $rewritten is the name of a directory containing files for each | |
44 | # commit that is reachable by at least one merge base of $head and | |
45 | # $upstream. They are not necessarily rewritten, but their children | |
46 | # might be. This ensures that commits on merged, but otherwise | |
47 | # unrelated side branches are left alone. (Think "X" in the man page's | |
48 | # example.) | |
49 | rewritten="$state_dir"/rewritten | |
50 | ||
51 | dropped="$state_dir"/dropped | |
52 | ||
53 | end="$state_dir"/end | |
54 | msgnum="$state_dir"/msgnum | |
55 | ||
56 | # A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and | |
57 | # GIT_AUTHOR_DATE that will be used for the commit that is currently | |
58 | # being rebased. | |
59 | author_script="$state_dir"/author-script | |
60 | ||
61 | # When an "edit" rebase command is being processed, the SHA1 of the | |
62 | # commit to be edited is recorded in this file. When "git rebase | |
63 | # --continue" is executed, if there are any staged changes then they | |
64 | # will be amended to the HEAD commit, but only provided the HEAD | |
65 | # commit is still the commit to be edited. When any other rebase | |
66 | # command is processed, this file is deleted. | |
67 | amend="$state_dir"/amend | |
68 | ||
69 | # For the post-rewrite hook, we make a list of rewritten commits and | |
70 | # their new sha1s. The rewritten-pending list keeps the sha1s of | |
71 | # commits that have been processed, but not committed yet, | |
72 | # e.g. because they are waiting for a 'squash' command. | |
73 | rewritten_list="$state_dir"/rewritten-list | |
74 | rewritten_pending="$state_dir"/rewritten-pending | |
75 | ||
76 | # Work around Git for Windows' Bash whose "read" does not strip CRLF | |
77 | # and leaves CR at the end instead. | |
78 | cr=$(printf "\015") | |
79 | ||
80 | strategy_args=${strategy:+--strategy=$strategy} | |
81 | test -n "$strategy_opts" && | |
82 | eval ' | |
83 | for strategy_opt in '"$strategy_opts"' | |
84 | do | |
85 | strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")" | |
86 | done | |
87 | ' | |
88 | ||
89 | GIT_CHERRY_PICK_HELP="$resolvemsg" | |
90 | export GIT_CHERRY_PICK_HELP | |
91 | ||
92 | comment_char=$(git config --get core.commentchar 2>/dev/null) | |
93 | case "$comment_char" in | |
94 | '' | auto) | |
95 | comment_char="#" | |
96 | ;; | |
97 | ?) | |
98 | ;; | |
99 | *) | |
100 | comment_char=$(echo "$comment_char" | cut -c1) | |
101 | ;; | |
102 | esac | |
103 | ||
104 | warn () { | |
105 | printf '%s\n' "$*" >&2 | |
106 | } | |
107 | ||
108 | # Output the commit message for the specified commit. | |
109 | commit_message () { | |
110 | git cat-file commit "$1" | sed "1,/^$/d" | |
111 | } | |
112 | ||
113 | orig_reflog_action="$GIT_REFLOG_ACTION" | |
114 | ||
115 | comment_for_reflog () { | |
116 | case "$orig_reflog_action" in | |
117 | ''|rebase*) | |
118 | GIT_REFLOG_ACTION="rebase -i ($1)" | |
119 | export GIT_REFLOG_ACTION | |
120 | ;; | |
121 | esac | |
122 | } | |
123 | ||
124 | last_count= | |
125 | mark_action_done () { | |
126 | sed -e 1q < "$todo" >> "$done" | |
127 | sed -e 1d < "$todo" >> "$todo".new | |
128 | mv -f "$todo".new "$todo" | |
129 | new_count=$(( $(git stripspace --strip-comments <"$done" | wc -l) )) | |
130 | echo $new_count >"$msgnum" | |
131 | total=$(($new_count + $(git stripspace --strip-comments <"$todo" | wc -l))) | |
132 | echo $total >"$end" | |
133 | if test "$last_count" != "$new_count" | |
134 | then | |
135 | last_count=$new_count | |
136 | eval_gettext "Rebasing (\$new_count/\$total)"; printf "\r" | |
137 | test -z "$verbose" || echo | |
138 | fi | |
139 | } | |
140 | ||
141 | # Put the last action marked done at the beginning of the todo list | |
142 | # again. If there has not been an action marked done yet, leave the list of | |
143 | # items on the todo list unchanged. | |
144 | reschedule_last_action () { | |
145 | tail -n 1 "$done" | cat - "$todo" >"$todo".new | |
146 | sed -e \$d <"$done" >"$done".new | |
147 | mv -f "$todo".new "$todo" | |
148 | mv -f "$done".new "$done" | |
149 | } | |
150 | ||
151 | append_todo_help () { | |
152 | gettext " | |
153 | Commands: | |
154 | p, pick <commit> = use commit | |
155 | r, reword <commit> = use commit, but edit the commit message | |
156 | e, edit <commit> = use commit, but stop for amending | |
157 | s, squash <commit> = use commit, but meld into previous commit | |
158 | f, fixup <commit> = like \"squash\", but discard this commit's log message | |
159 | x, exec <commit> = run command (the rest of the line) using shell | |
160 | d, drop <commit> = remove commit | |
161 | l, label <label> = label current HEAD with a name | |
162 | t, reset <label> = reset HEAD to a label | |
163 | m, merge [-C <commit> | -c <commit>] <label> [# <oneline>] | |
164 | . create a merge commit using the original merge commit's | |
165 | . message (or the oneline, if no original merge commit was | |
166 | . specified). Use -c <commit> to reword the commit message. | |
167 | ||
168 | These lines can be re-ordered; they are executed from top to bottom. | |
169 | " | git stripspace --comment-lines >>"$todo" | |
170 | ||
171 | if test $(get_missing_commit_check_level) = error | |
172 | then | |
173 | gettext " | |
174 | Do not remove any line. Use 'drop' explicitly to remove a commit. | |
175 | " | git stripspace --comment-lines >>"$todo" | |
176 | else | |
177 | gettext " | |
178 | If you remove a line here THAT COMMIT WILL BE LOST. | |
179 | " | git stripspace --comment-lines >>"$todo" | |
180 | fi | |
181 | } | |
182 | ||
183 | make_patch () { | |
184 | sha1_and_parents="$(git rev-list --parents -1 "$1")" | |
185 | case "$sha1_and_parents" in | |
186 | ?*' '?*' '?*) | |
187 | git diff --cc $sha1_and_parents | |
188 | ;; | |
189 | ?*' '?*) | |
190 | git diff-tree -p "$1^!" | |
191 | ;; | |
192 | *) | |
193 | echo "Root commit" | |
194 | ;; | |
195 | esac > "$state_dir"/patch | |
196 | test -f "$msg" || | |
197 | commit_message "$1" > "$msg" | |
198 | test -f "$author_script" || | |
199 | get_author_ident_from_commit "$1" > "$author_script" | |
200 | } | |
201 | ||
202 | die_with_patch () { | |
203 | echo "$1" > "$state_dir"/stopped-sha | |
204 | git update-ref REBASE_HEAD "$1" | |
205 | make_patch "$1" | |
206 | die "$2" | |
207 | } | |
208 | ||
209 | exit_with_patch () { | |
210 | echo "$1" > "$state_dir"/stopped-sha | |
211 | git update-ref REBASE_HEAD "$1" | |
212 | make_patch $1 | |
213 | git rev-parse --verify HEAD > "$amend" | |
214 | gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} | |
215 | warn "$(eval_gettext "\ | |
216 | You can amend the commit now, with | |
217 | ||
218 | git commit --amend \$gpg_sign_opt_quoted | |
219 | ||
220 | Once you are satisfied with your changes, run | |
221 | ||
222 | git rebase --continue")" | |
223 | warn | |
224 | exit $2 | |
225 | } | |
226 | ||
227 | die_abort () { | |
228 | apply_autostash | |
229 | rm -rf "$state_dir" | |
230 | die "$1" | |
231 | } | |
232 | ||
233 | has_action () { | |
234 | test -n "$(git stripspace --strip-comments <"$1")" | |
235 | } | |
236 | ||
237 | is_empty_commit() { | |
238 | tree=$(git rev-parse -q --verify "$1"^{tree} 2>/dev/null) || { | |
239 | sha1=$1 | |
240 | die "$(eval_gettext "\$sha1: not a commit that can be picked")" | |
241 | } | |
242 | ptree=$(git rev-parse -q --verify "$1"^^{tree} 2>/dev/null) || | |
243 | ptree=4b825dc642cb6eb9a060e54bf8d69288fbee4904 | |
244 | test "$tree" = "$ptree" | |
245 | } | |
246 | ||
247 | is_merge_commit() | |
248 | { | |
249 | git rev-parse --verify --quiet "$1"^2 >/dev/null 2>&1 | |
250 | } | |
251 | ||
252 | # Run command with GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and | |
253 | # GIT_AUTHOR_DATE exported from the current environment. | |
254 | do_with_author () { | |
255 | ( | |
256 | export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE | |
257 | "$@" | |
258 | ) | |
259 | } | |
260 | ||
261 | git_sequence_editor () { | |
262 | if test -z "$GIT_SEQUENCE_EDITOR" | |
263 | then | |
264 | GIT_SEQUENCE_EDITOR="$(git config sequence.editor)" | |
265 | if [ -z "$GIT_SEQUENCE_EDITOR" ] | |
266 | then | |
267 | GIT_SEQUENCE_EDITOR="$(git var GIT_EDITOR)" || return $? | |
268 | fi | |
269 | fi | |
270 | ||
271 | eval "$GIT_SEQUENCE_EDITOR" '"$@"' | |
272 | } | |
273 | ||
274 | pick_one () { | |
275 | ff=--ff | |
276 | ||
277 | case "$1" in -n) sha1=$2; ff= ;; *) sha1=$1 ;; esac | |
278 | case "$force_rebase" in '') ;; ?*) ff= ;; esac | |
279 | output git rev-parse --verify $sha1 || die "$(eval_gettext "Invalid commit name: \$sha1")" | |
280 | ||
281 | if is_empty_commit "$sha1" | |
282 | then | |
283 | empty_args="--allow-empty" | |
284 | fi | |
285 | ||
ef64bb32 | 286 | pick_one_preserving_merges "$@" |
c42abfe7 AG |
287 | } |
288 | ||
289 | pick_one_preserving_merges () { | |
290 | fast_forward=t | |
291 | case "$1" in | |
292 | -n) | |
293 | fast_forward=f | |
294 | sha1=$2 | |
295 | ;; | |
296 | *) | |
297 | sha1=$1 | |
298 | ;; | |
299 | esac | |
300 | sha1=$(git rev-parse $sha1) | |
301 | ||
302 | if test -f "$state_dir"/current-commit && test "$fast_forward" = t | |
303 | then | |
304 | while read current_commit | |
305 | do | |
306 | git rev-parse HEAD > "$rewritten"/$current_commit | |
307 | done <"$state_dir"/current-commit | |
308 | rm "$state_dir"/current-commit || | |
309 | die "$(gettext "Cannot write current commit's replacement sha1")" | |
310 | fi | |
311 | ||
312 | echo $sha1 >> "$state_dir"/current-commit | |
313 | ||
314 | # rewrite parents; if none were rewritten, we can fast-forward. | |
315 | new_parents= | |
316 | pend=" $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)" | |
317 | if test "$pend" = " " | |
318 | then | |
319 | pend=" root" | |
320 | fi | |
321 | while [ "$pend" != "" ] | |
322 | do | |
323 | p=$(expr "$pend" : ' \([^ ]*\)') | |
324 | pend="${pend# $p}" | |
325 | ||
326 | if test -f "$rewritten"/$p | |
327 | then | |
328 | new_p=$(cat "$rewritten"/$p) | |
329 | ||
330 | # If the todo reordered commits, and our parent is marked for | |
331 | # rewriting, but hasn't been gotten to yet, assume the user meant to | |
332 | # drop it on top of the current HEAD | |
333 | if test -z "$new_p" | |
334 | then | |
335 | new_p=$(git rev-parse HEAD) | |
336 | fi | |
337 | ||
338 | test $p != $new_p && fast_forward=f | |
339 | case "$new_parents" in | |
340 | *$new_p*) | |
341 | ;; # do nothing; that parent is already there | |
342 | *) | |
343 | new_parents="$new_parents $new_p" | |
344 | ;; | |
345 | esac | |
346 | else | |
347 | if test -f "$dropped"/$p | |
348 | then | |
349 | fast_forward=f | |
350 | replacement="$(cat "$dropped"/$p)" | |
351 | test -z "$replacement" && replacement=root | |
352 | pend=" $replacement$pend" | |
353 | else | |
354 | new_parents="$new_parents $p" | |
355 | fi | |
356 | fi | |
357 | done | |
358 | case $fast_forward in | |
359 | t) | |
360 | output warn "$(eval_gettext "Fast-forward to \$sha1")" | |
361 | output git reset --hard $sha1 || | |
362 | die "$(eval_gettext "Cannot fast-forward to \$sha1")" | |
363 | ;; | |
364 | f) | |
365 | first_parent=$(expr "$new_parents" : ' \([^ ]*\)') | |
366 | ||
367 | if [ "$1" != "-n" ] | |
368 | then | |
369 | # detach HEAD to current parent | |
370 | output git checkout $first_parent 2> /dev/null || | |
371 | die "$(eval_gettext "Cannot move HEAD to \$first_parent")" | |
372 | fi | |
373 | ||
374 | case "$new_parents" in | |
375 | ' '*' '*) | |
376 | test "a$1" = a-n && die "$(eval_gettext "Refusing to squash a merge: \$sha1")" | |
377 | ||
378 | # redo merge | |
379 | author_script_content=$(get_author_ident_from_commit $sha1) | |
380 | eval "$author_script_content" | |
381 | msg_content="$(commit_message $sha1)" | |
382 | # No point in merging the first parent, that's HEAD | |
383 | new_parents=${new_parents# $first_parent} | |
384 | merge_args="--no-log --no-ff" | |
385 | if ! do_with_author output eval \ | |
386 | git merge ${gpg_sign_opt:+$(git rev-parse \ | |
387 | --sq-quote "$gpg_sign_opt")} \ | |
388 | $allow_rerere_autoupdate "$merge_args" \ | |
389 | "$strategy_args" \ | |
390 | -m "$(git rev-parse --sq-quote "$msg_content")" \ | |
391 | "$new_parents" | |
392 | then | |
393 | printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG | |
394 | die_with_patch $sha1 "$(eval_gettext "Error redoing merge \$sha1")" | |
395 | fi | |
396 | echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list" | |
397 | ;; | |
398 | *) | |
399 | output eval git cherry-pick $allow_rerere_autoupdate \ | |
400 | $allow_empty_message \ | |
401 | ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \ | |
402 | "$strategy_args" "$@" || | |
403 | die_with_patch $sha1 "$(eval_gettext "Could not pick \$sha1")" | |
404 | ;; | |
405 | esac | |
406 | ;; | |
407 | esac | |
408 | } | |
409 | ||
410 | this_nth_commit_message () { | |
411 | n=$1 | |
412 | eval_gettext "This is the commit message #\${n}:" | |
413 | } | |
414 | ||
415 | skip_nth_commit_message () { | |
416 | n=$1 | |
417 | eval_gettext "The commit message #\${n} will be skipped:" | |
418 | } | |
419 | ||
420 | update_squash_messages () { | |
421 | if test -f "$squash_msg"; then | |
422 | mv "$squash_msg" "$squash_msg".bak || exit | |
423 | count=$(($(sed -n \ | |
424 | -e "1s/^$comment_char[^0-9]*\([0-9][0-9]*\).*/\1/p" \ | |
425 | -e "q" < "$squash_msg".bak)+1)) | |
426 | { | |
427 | printf '%s\n' "$comment_char $(eval_ngettext \ | |
428 | "This is a combination of \$count commit." \ | |
429 | "This is a combination of \$count commits." \ | |
430 | $count)" | |
431 | sed -e 1d -e '2,/^./{ | |
432 | /^$/d | |
433 | }' <"$squash_msg".bak | |
434 | } >"$squash_msg" | |
435 | else | |
436 | commit_message HEAD >"$fixup_msg" || | |
437 | die "$(eval_gettext "Cannot write \$fixup_msg")" | |
438 | count=2 | |
439 | { | |
440 | printf '%s\n' "$comment_char $(gettext "This is a combination of 2 commits.")" | |
441 | printf '%s\n' "$comment_char $(gettext "This is the 1st commit message:")" | |
442 | echo | |
443 | cat "$fixup_msg" | |
444 | } >"$squash_msg" | |
445 | fi | |
446 | case $1 in | |
447 | squash) | |
448 | rm -f "$fixup_msg" | |
449 | echo | |
450 | printf '%s\n' "$comment_char $(this_nth_commit_message $count)" | |
451 | echo | |
452 | commit_message $2 | |
453 | ;; | |
454 | fixup) | |
455 | echo | |
456 | printf '%s\n' "$comment_char $(skip_nth_commit_message $count)" | |
457 | echo | |
458 | # Change the space after the comment character to TAB: | |
459 | commit_message $2 | git stripspace --comment-lines | sed -e 's/ / /' | |
460 | ;; | |
461 | esac >>"$squash_msg" | |
462 | } | |
463 | ||
464 | peek_next_command () { | |
465 | git stripspace --strip-comments <"$todo" | sed -n -e 's/ .*//p' -e q | |
466 | } | |
467 | ||
468 | # A squash/fixup has failed. Prepare the long version of the squash | |
469 | # commit message, then die_with_patch. This code path requires the | |
470 | # user to edit the combined commit message for all commits that have | |
471 | # been squashed/fixedup so far. So also erase the old squash | |
472 | # messages, effectively causing the combined commit to be used as the | |
473 | # new basis for any further squash/fixups. Args: sha1 rest | |
474 | die_failed_squash() { | |
475 | sha1=$1 | |
476 | rest=$2 | |
477 | mv "$squash_msg" "$msg" || exit | |
478 | rm -f "$fixup_msg" | |
479 | cp "$msg" "$GIT_DIR"/MERGE_MSG || exit | |
480 | warn | |
481 | warn "$(eval_gettext "Could not apply \$sha1... \$rest")" | |
482 | die_with_patch $sha1 "" | |
483 | } | |
484 | ||
485 | flush_rewritten_pending() { | |
486 | test -s "$rewritten_pending" || return | |
487 | newsha1="$(git rev-parse HEAD^0)" | |
488 | sed "s/$/ $newsha1/" < "$rewritten_pending" >> "$rewritten_list" | |
489 | rm -f "$rewritten_pending" | |
490 | } | |
491 | ||
492 | record_in_rewritten() { | |
493 | oldsha1="$(git rev-parse $1)" | |
494 | echo "$oldsha1" >> "$rewritten_pending" | |
495 | ||
496 | case "$(peek_next_command)" in | |
497 | squash|s|fixup|f) | |
498 | ;; | |
499 | *) | |
500 | flush_rewritten_pending | |
501 | ;; | |
502 | esac | |
503 | } | |
504 | ||
505 | do_pick () { | |
506 | sha1=$1 | |
507 | rest=$2 | |
508 | if test "$(git rev-parse HEAD)" = "$squash_onto" | |
509 | then | |
510 | # Set the correct commit message and author info on the | |
511 | # sentinel root before cherry-picking the original changes | |
512 | # without committing (-n). Finally, update the sentinel again | |
513 | # to include these changes. If the cherry-pick results in a | |
514 | # conflict, this means our behaviour is similar to a standard | |
515 | # failed cherry-pick during rebase, with a dirty index to | |
516 | # resolve before manually running git commit --amend then git | |
517 | # rebase --continue. | |
518 | git commit --allow-empty --allow-empty-message --amend \ | |
519 | --no-post-rewrite -n -q -C $sha1 $signoff && | |
520 | pick_one -n $sha1 && | |
521 | git commit --allow-empty --allow-empty-message \ | |
522 | --amend --no-post-rewrite -n -q -C $sha1 $signoff \ | |
523 | ${gpg_sign_opt:+"$gpg_sign_opt"} || | |
524 | die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")" | |
525 | else | |
526 | pick_one $sha1 || | |
527 | die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")" | |
528 | fi | |
529 | } | |
530 | ||
531 | do_next () { | |
532 | rm -f "$msg" "$author_script" "$amend" "$state_dir"/stopped-sha || exit | |
533 | read -r command sha1 rest < "$todo" | |
534 | case "$command" in | |
535 | "$comment_char"*|''|noop|drop|d) | |
536 | mark_action_done | |
537 | ;; | |
538 | "$cr") | |
539 | # Work around CR left by "read" (e.g. with Git for Windows' Bash). | |
540 | mark_action_done | |
541 | ;; | |
542 | pick|p) | |
543 | comment_for_reflog pick | |
544 | ||
545 | mark_action_done | |
546 | do_pick $sha1 "$rest" | |
547 | record_in_rewritten $sha1 | |
548 | ;; | |
549 | reword|r) | |
550 | comment_for_reflog reword | |
551 | ||
552 | mark_action_done | |
553 | do_pick $sha1 "$rest" | |
554 | git commit --amend --no-post-rewrite ${gpg_sign_opt:+"$gpg_sign_opt"} \ | |
555 | $allow_empty_message || { | |
556 | warn "$(eval_gettext "\ | |
557 | Could not amend commit after successfully picking \$sha1... \$rest | |
558 | This is most likely due to an empty commit message, or the pre-commit hook | |
559 | failed. If the pre-commit hook failed, you may need to resolve the issue before | |
560 | you are able to reword the commit.")" | |
561 | exit_with_patch $sha1 1 | |
562 | } | |
563 | record_in_rewritten $sha1 | |
564 | ;; | |
565 | edit|e) | |
566 | comment_for_reflog edit | |
567 | ||
568 | mark_action_done | |
569 | do_pick $sha1 "$rest" | |
570 | sha1_abbrev=$(git rev-parse --short $sha1) | |
571 | warn "$(eval_gettext "Stopped at \$sha1_abbrev... \$rest")" | |
572 | exit_with_patch $sha1 0 | |
573 | ;; | |
574 | squash|s|fixup|f) | |
575 | case "$command" in | |
576 | squash|s) | |
577 | squash_style=squash | |
578 | ;; | |
579 | fixup|f) | |
580 | squash_style=fixup | |
581 | ;; | |
582 | esac | |
583 | comment_for_reflog $squash_style | |
584 | ||
585 | test -f "$done" && has_action "$done" || | |
586 | die "$(eval_gettext "Cannot '\$squash_style' without a previous commit")" | |
587 | ||
588 | mark_action_done | |
589 | update_squash_messages $squash_style $sha1 | |
590 | author_script_content=$(get_author_ident_from_commit HEAD) | |
591 | echo "$author_script_content" > "$author_script" | |
592 | eval "$author_script_content" | |
593 | if ! pick_one -n $sha1 | |
594 | then | |
595 | git rev-parse --verify HEAD >"$amend" | |
596 | die_failed_squash $sha1 "$rest" | |
597 | fi | |
598 | case "$(peek_next_command)" in | |
599 | squash|s|fixup|f) | |
600 | # This is an intermediate commit; its message will only be | |
601 | # used in case of trouble. So use the long version: | |
602 | do_with_author output git commit --amend --no-verify -F "$squash_msg" \ | |
603 | ${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message || | |
604 | die_failed_squash $sha1 "$rest" | |
605 | ;; | |
606 | *) | |
607 | # This is the final command of this squash/fixup group | |
608 | if test -f "$fixup_msg" | |
609 | then | |
610 | do_with_author git commit --amend --no-verify -F "$fixup_msg" \ | |
611 | ${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message || | |
612 | die_failed_squash $sha1 "$rest" | |
613 | else | |
614 | cp "$squash_msg" "$GIT_DIR"/SQUASH_MSG || exit | |
615 | rm -f "$GIT_DIR"/MERGE_MSG | |
616 | do_with_author git commit --amend --no-verify -F "$GIT_DIR"/SQUASH_MSG -e \ | |
617 | ${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message || | |
618 | die_failed_squash $sha1 "$rest" | |
619 | fi | |
620 | rm -f "$squash_msg" "$fixup_msg" | |
621 | ;; | |
622 | esac | |
623 | record_in_rewritten $sha1 | |
624 | ;; | |
625 | x|"exec") | |
626 | read -r command rest < "$todo" | |
627 | mark_action_done | |
628 | eval_gettextln "Executing: \$rest" | |
629 | "${SHELL:-@SHELL_PATH@}" -c "$rest" # Actual execution | |
630 | status=$? | |
631 | # Run in subshell because require_clean_work_tree can die. | |
632 | dirty=f | |
633 | (require_clean_work_tree "rebase" 2>/dev/null) || dirty=t | |
634 | if test "$status" -ne 0 | |
635 | then | |
636 | warn "$(eval_gettext "Execution failed: \$rest")" | |
637 | test "$dirty" = f || | |
638 | warn "$(gettext "and made changes to the index and/or the working tree")" | |
639 | ||
640 | warn "$(gettext "\ | |
641 | You can fix the problem, and then run | |
642 | ||
643 | git rebase --continue")" | |
644 | warn | |
645 | if test $status -eq 127 # command not found | |
646 | then | |
647 | status=1 | |
648 | fi | |
649 | exit "$status" | |
650 | elif test "$dirty" = t | |
651 | then | |
652 | # TRANSLATORS: after these lines is a command to be issued by the user | |
653 | warn "$(eval_gettext "\ | |
654 | Execution succeeded: \$rest | |
655 | but left changes to the index and/or the working tree | |
656 | Commit or stash your changes, and then run | |
657 | ||
658 | git rebase --continue")" | |
659 | warn | |
660 | exit 1 | |
661 | fi | |
662 | ;; | |
663 | *) | |
664 | warn "$(eval_gettext "Unknown command: \$command \$sha1 \$rest")" | |
665 | fixtodo="$(gettext "Please fix this using 'git rebase --edit-todo'.")" | |
666 | if git rev-parse --verify -q "$sha1" >/dev/null | |
667 | then | |
668 | die_with_patch $sha1 "$fixtodo" | |
669 | else | |
670 | die "$fixtodo" | |
671 | fi | |
672 | ;; | |
673 | esac | |
674 | test -s "$todo" && return | |
675 | ||
676 | comment_for_reflog finish && | |
677 | newhead=$(git rev-parse HEAD) && | |
678 | case $head_name in | |
679 | refs/*) | |
680 | message="$GIT_REFLOG_ACTION: $head_name onto $onto" && | |
681 | git update-ref -m "$message" $head_name $newhead $orig_head && | |
682 | git symbolic-ref \ | |
683 | -m "$GIT_REFLOG_ACTION: returning to $head_name" \ | |
684 | HEAD $head_name | |
685 | ;; | |
686 | esac && { | |
687 | test ! -f "$state_dir"/verbose || | |
688 | git diff-tree --stat $orig_head..HEAD | |
689 | } && | |
690 | { | |
691 | test -s "$rewritten_list" && | |
692 | git notes copy --for-rewrite=rebase < "$rewritten_list" || | |
693 | true # we don't care if this copying failed | |
694 | } && | |
695 | hook="$(git rev-parse --git-path hooks/post-rewrite)" | |
696 | if test -x "$hook" && test -s "$rewritten_list"; then | |
697 | "$hook" rebase < "$rewritten_list" | |
698 | true # we don't care if this hook failed | |
699 | fi && | |
700 | warn "$(eval_gettext "Successfully rebased and updated \$head_name.")" | |
701 | ||
702 | return 1 # not failure; just to break the do_rest loop | |
703 | } | |
704 | ||
705 | # can only return 0, when the infinite loop breaks | |
706 | do_rest () { | |
707 | while : | |
708 | do | |
709 | do_next || break | |
710 | done | |
711 | } | |
712 | ||
713 | expand_todo_ids() { | |
714 | git rebase--helper --expand-ids | |
715 | } | |
716 | ||
717 | collapse_todo_ids() { | |
718 | git rebase--helper --shorten-ids | |
719 | } | |
720 | ||
721 | # Switch to the branch in $into and notify it in the reflog | |
722 | checkout_onto () { | |
723 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" | |
724 | output git checkout $onto || die_abort "$(gettext "could not detach HEAD")" | |
725 | git update-ref ORIG_HEAD $orig_head | |
726 | } | |
727 | ||
728 | get_missing_commit_check_level () { | |
729 | check_level=$(git config --get rebase.missingCommitsCheck) | |
730 | check_level=${check_level:-ignore} | |
731 | # Don't be case sensitive | |
732 | printf '%s' "$check_level" | tr 'A-Z' 'a-z' | |
733 | } | |
734 | ||
735 | # Initiate an action. If the cannot be any | |
736 | # further action it may exec a command | |
737 | # or exit and not return. | |
738 | # | |
739 | # TODO: Consider a cleaner return model so it | |
740 | # never exits and always return 0 if process | |
741 | # is complete. | |
742 | # | |
743 | # Parameter 1 is the action to initiate. | |
744 | # | |
745 | # Returns 0 if the action was able to complete | |
746 | # and if 1 if further processing is required. | |
747 | initiate_action () { | |
748 | case "$1" in | |
749 | continue) | |
c42abfe7 AG |
750 | # do we have anything to commit? |
751 | if git diff-index --cached --quiet HEAD -- | |
752 | then | |
753 | # Nothing to commit -- skip this commit | |
754 | ||
755 | test ! -f "$GIT_DIR"/CHERRY_PICK_HEAD || | |
756 | rm "$GIT_DIR"/CHERRY_PICK_HEAD || | |
757 | die "$(gettext "Could not remove CHERRY_PICK_HEAD")" | |
758 | else | |
759 | if ! test -f "$author_script" | |
760 | then | |
761 | gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} | |
762 | die "$(eval_gettext "\ | |
763 | You have staged changes in your working tree. | |
764 | If these changes are meant to be | |
765 | squashed into the previous commit, run: | |
766 | ||
767 | git commit --amend \$gpg_sign_opt_quoted | |
768 | ||
769 | If they are meant to go into a new commit, run: | |
770 | ||
771 | git commit \$gpg_sign_opt_quoted | |
772 | ||
773 | In both cases, once you're done, continue with: | |
774 | ||
775 | git rebase --continue | |
776 | ")" | |
777 | fi | |
778 | . "$author_script" || | |
779 | die "$(gettext "Error trying to find the author identity to amend commit")" | |
780 | if test -f "$amend" | |
781 | then | |
782 | current_head=$(git rev-parse --verify HEAD) | |
783 | test "$current_head" = $(cat "$amend") || | |
784 | die "$(gettext "\ | |
785 | You have uncommitted changes in your working tree. Please commit them | |
786 | first and then run 'git rebase --continue' again.")" | |
787 | do_with_author git commit --amend --no-verify -F "$msg" -e \ | |
788 | ${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message || | |
789 | die "$(gettext "Could not commit staged changes.")" | |
790 | else | |
791 | do_with_author git commit --no-verify -F "$msg" -e \ | |
792 | ${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message || | |
793 | die "$(gettext "Could not commit staged changes.")" | |
794 | fi | |
795 | fi | |
796 | ||
797 | if test -r "$state_dir"/stopped-sha | |
798 | then | |
799 | record_in_rewritten "$(cat "$state_dir"/stopped-sha)" | |
800 | fi | |
801 | ||
802 | require_clean_work_tree "rebase" | |
803 | do_rest | |
804 | return 0 | |
805 | ;; | |
806 | skip) | |
807 | git rerere clear | |
c42abfe7 AG |
808 | do_rest |
809 | return 0 | |
810 | ;; | |
811 | edit-todo) | |
812 | git stripspace --strip-comments <"$todo" >"$todo".new | |
813 | mv -f "$todo".new "$todo" | |
814 | collapse_todo_ids | |
815 | append_todo_help | |
816 | gettext " | |
817 | You are editing the todo file of an ongoing interactive rebase. | |
818 | To continue rebase after editing, run: | |
819 | git rebase --continue | |
820 | ||
821 | " | git stripspace --comment-lines >>"$todo" | |
822 | ||
823 | git_sequence_editor "$todo" || | |
824 | die "$(gettext "Could not execute editor")" | |
825 | expand_todo_ids | |
826 | ||
827 | exit | |
828 | ;; | |
829 | show-current-patch) | |
830 | exec git show REBASE_HEAD -- | |
831 | ;; | |
832 | *) | |
833 | return 1 # continue | |
834 | ;; | |
835 | esac | |
836 | } | |
837 | ||
838 | setup_reflog_action () { | |
839 | comment_for_reflog start | |
840 | ||
841 | if test ! -z "$switch_to" | |
842 | then | |
843 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" | |
844 | output git checkout "$switch_to" -- || | |
845 | die "$(eval_gettext "Could not checkout \$switch_to")" | |
846 | ||
847 | comment_for_reflog start | |
848 | fi | |
849 | } | |
850 | ||
851 | init_basic_state () { | |
852 | orig_head=$(git rev-parse --verify HEAD) || die "$(gettext "No HEAD?")" | |
853 | mkdir -p "$state_dir" || die "$(eval_gettext "Could not create temporary \$state_dir")" | |
854 | rm -f "$(git rev-parse --git-path REBASE_HEAD)" | |
855 | ||
856 | : > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")" | |
857 | write_basic_state | |
858 | } | |
859 | ||
860 | init_revisions_and_shortrevisions () { | |
861 | shorthead=$(git rev-parse --short $orig_head) | |
862 | shortonto=$(git rev-parse --short $onto) | |
863 | if test -z "$rebase_root" | |
864 | # this is now equivalent to ! -z "$upstream" | |
865 | then | |
866 | shortupstream=$(git rev-parse --short $upstream) | |
867 | revisions=$upstream...$orig_head | |
868 | shortrevisions=$shortupstream..$shorthead | |
869 | else | |
870 | revisions=$onto...$orig_head | |
871 | shortrevisions=$shorthead | |
872 | test -z "$squash_onto" || | |
873 | echo "$squash_onto" >"$state_dir"/squash-onto | |
874 | fi | |
875 | } | |
876 | ||
877 | complete_action() { | |
878 | test -s "$todo" || echo noop >> "$todo" | |
879 | test -z "$autosquash" || git rebase--helper --rearrange-squash || exit | |
880 | test -n "$cmd" && git rebase--helper --add-exec-commands "$cmd" | |
881 | ||
882 | todocount=$(git stripspace --strip-comments <"$todo" | wc -l) | |
883 | todocount=${todocount##* } | |
884 | ||
885 | cat >>"$todo" <<EOF | |
886 | ||
887 | $comment_char $(eval_ngettext \ | |
888 | "Rebase \$shortrevisions onto \$shortonto (\$todocount command)" \ | |
889 | "Rebase \$shortrevisions onto \$shortonto (\$todocount commands)" \ | |
890 | "$todocount") | |
891 | EOF | |
892 | append_todo_help | |
893 | gettext " | |
2e995752 | 894 | However, if you remove everything, the rebase will be aborted. |
c42abfe7 | 895 | |
2e995752 | 896 | " | git stripspace --comment-lines >>"$todo" |
c42abfe7 AG |
897 | |
898 | if test -z "$keep_empty" | |
899 | then | |
900 | printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo" | |
901 | fi | |
902 | ||
903 | ||
904 | has_action "$todo" || | |
905 | return 2 | |
906 | ||
907 | cp "$todo" "$todo".backup | |
908 | collapse_todo_ids | |
909 | git_sequence_editor "$todo" || | |
910 | die_abort "$(gettext "Could not execute editor")" | |
911 | ||
912 | has_action "$todo" || | |
913 | return 2 | |
914 | ||
915 | git rebase--helper --check-todo-list || { | |
916 | ret=$? | |
917 | checkout_onto | |
918 | exit $ret | |
919 | } | |
920 | ||
921 | expand_todo_ids | |
c42abfe7 | 922 | checkout_onto |
c42abfe7 AG |
923 | do_rest |
924 | } | |
925 | ||
ef64bb32 | 926 | git_rebase__preserve_merges () { |
c42abfe7 AG |
927 | initiate_action "$action" |
928 | ret=$? | |
929 | if test $ret = 0; then | |
930 | return 0 | |
931 | fi | |
932 | ||
933 | setup_reflog_action | |
934 | init_basic_state | |
935 | ||
936 | if test -z "$rebase_root" | |
937 | then | |
938 | mkdir "$rewritten" && | |
939 | for c in $(git merge-base --all $orig_head $upstream) | |
940 | do | |
941 | echo $onto > "$rewritten"/$c || | |
942 | die "$(gettext "Could not init rewritten commits")" | |
943 | done | |
944 | else | |
945 | mkdir "$rewritten" && | |
946 | echo $onto > "$rewritten"/root || | |
947 | die "$(gettext "Could not init rewritten commits")" | |
948 | fi | |
949 | ||
950 | init_revisions_and_shortrevisions | |
951 | ||
952 | format=$(git config --get rebase.instructionFormat) | |
953 | # the 'rev-list .. | sed' requires %m to parse; the instruction requires %H to parse | |
954 | git rev-list --format="%m%H ${format:-%s}" \ | |
955 | --reverse --left-right --topo-order \ | |
956 | $revisions ${restrict_revision+^$restrict_revision} | \ | |
957 | sed -n "s/^>//p" | | |
958 | while read -r sha1 rest | |
959 | do | |
960 | if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1 | |
961 | then | |
962 | comment_out="$comment_char " | |
963 | else | |
964 | comment_out= | |
965 | fi | |
966 | ||
967 | if test -z "$rebase_root" | |
968 | then | |
969 | preserve=t | |
970 | for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-) | |
971 | do | |
972 | if test -f "$rewritten"/$p | |
973 | then | |
974 | preserve=f | |
975 | fi | |
976 | done | |
977 | else | |
978 | preserve=f | |
979 | fi | |
980 | if test f = "$preserve" | |
981 | then | |
982 | touch "$rewritten"/$sha1 | |
983 | printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo" | |
984 | fi | |
985 | done | |
986 | ||
987 | # Watch for commits that been dropped by --cherry-pick | |
988 | mkdir "$dropped" | |
989 | # Save all non-cherry-picked changes | |
990 | git rev-list $revisions --left-right --cherry-pick | \ | |
991 | sed -n "s/^>//p" > "$state_dir"/not-cherry-picks | |
992 | # Now all commits and note which ones are missing in | |
993 | # not-cherry-picks and hence being dropped | |
994 | git rev-list $revisions | | |
995 | while read rev | |
996 | do | |
997 | if test -f "$rewritten"/$rev && | |
998 | ! sane_grep "$rev" "$state_dir"/not-cherry-picks >/dev/null | |
999 | then | |
1000 | # Use -f2 because if rev-list is telling us this commit is | |
1001 | # not worthwhile, we don't want to track its multiple heads, | |
1002 | # just the history of its first-parent for others that will | |
1003 | # be rebasing on top of it | |
1004 | git rev-list --parents -1 $rev | cut -d' ' -s -f2 > "$dropped"/$rev | |
1005 | sha1=$(git rev-list -1 $rev) | |
1006 | sane_grep -v "^[a-z][a-z]* $sha1" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo" | |
1007 | rm "$rewritten"/$rev | |
1008 | fi | |
1009 | done | |
1010 | ||
1011 | complete_action | |
1012 | } |