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Commit | Line | Data |
---|---|---|
59e6b23a JH |
1 | #!/bin/sh |
2 | # | |
3 | # Copyright (c) 2005 Junio C Hamano. | |
4 | # | |
5 | ||
533b7039 | 6 | SUBDIRECTORY_OK=Yes |
45e2acf3 | 7 | OPTIONS_KEEPDASHDASH= |
b6e9e73e | 8 | OPTIONS_STUCKLONG=t |
45e2acf3 | 9 | OPTIONS_SPEC="\ |
c2145384 | 10 | git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] [<upstream>] [<branch>] |
0cd993a7 | 11 | git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] --root [<branch>] |
eb9a7cb4 | 12 | git-rebase --continue | --abort | --skip | --edit-todo |
45e2acf3 MZ |
13 | -- |
14 | Available options are | |
15 | v,verbose! display a diffstat of what changed upstream | |
16 | q,quiet! be quiet. implies --no-stat | |
58794775 | 17 | autostash! automatically stash/stash pop before and after |
ad8261d2 | 18 | fork-point use 'merge-base --fork-point' to refine upstream |
45e2acf3 MZ |
19 | onto=! rebase onto given branch instead of upstream |
20 | p,preserve-merges! try to recreate merges instead of ignoring them | |
21 | s,strategy=! use the given merge strategy | |
22 | no-ff! cherry-pick all commits, even if unchanged | |
23 | m,merge! use merging strategies to rebase | |
24 | i,interactive! let the user edit the list of commits to rebase | |
c2145384 | 25 | x,exec=! add exec lines after each commit of the editable list |
90e1818f | 26 | k,keep-empty preserve empty commits during rebase |
45e2acf3 MZ |
27 | f,force-rebase! force rebase even if branch is up to date |
28 | X,strategy-option=! pass the argument through to the merge strategy | |
29 | stat! display a diffstat of what changed upstream | |
30 | n,no-stat! do not show diffstat of what changed upstream | |
31 | verify allow pre-rebase hook to run | |
32 | rerere-autoupdate allow rerere to update index with resolved conflicts | |
33 | root! rebase all reachable commits up to the root(s) | |
34 | autosquash move commits that begin with squash!/fixup! under -i | |
35 | committer-date-is-author-date! passed to 'git am' | |
36 | ignore-date! passed to 'git am' | |
37 | whitespace=! passed to 'git apply' | |
38 | ignore-whitespace! passed to 'git apply' | |
39 | C=! passed to 'git apply' | |
3ee5e540 | 40 | S,gpg-sign? GPG-sign commits |
45e2acf3 | 41 | Actions: |
5960bc9d MZ |
42 | continue! continue |
43 | abort! abort and check out the original branch | |
44 | skip! skip current patch and continue | |
eb9a7cb4 | 45 | edit-todo! edit the todo list during an interactive rebase |
45e2acf3 | 46 | " |
ae2b0f15 | 47 | . git-sh-setup |
c7108bf9 | 48 | . git-sh-i18n |
f9474132 | 49 | set_reflog_action rebase |
035b5bf6 | 50 | require_work_tree_exists |
533b7039 | 51 | cd_to_toplevel |
4282c4fb | 52 | |
61dfa1bb JH |
53 | LF=' |
54 | ' | |
6bb4e485 MZ |
55 | ok_to_skip_pre_rebase= |
56 | resolvemsg=" | |
c7108bf9 JX |
57 | $(gettext 'When you have resolved this problem, run "git rebase --continue". |
58 | If you prefer to skip this patch, run "git rebase --skip" instead. | |
59 | To check out the original branch and stop rebasing, run "git rebase --abort".') | |
cc120056 | 60 | " |
6bb4e485 | 61 | unset onto |
c2145384 | 62 | cmd= |
9765b6ab | 63 | strategy= |
93ce190c | 64 | strategy_opts= |
58634dbf | 65 | do_merge= |
69a636ad MZ |
66 | merge_dir="$GIT_DIR"/rebase-merge |
67 | apply_dir="$GIT_DIR"/rebase-apply | |
b758789c | 68 | verbose= |
9474a029 MZ |
69 | diffstat= |
70 | test "$(git config --bool rebase.stat)" = true && diffstat=t | |
58794775 | 71 | autostash="$(git config --bool rebase.autostash || echo false)" |
ad8261d2 | 72 | fork_point=auto |
67dad687 | 73 | git_am_opt= |
190f5323 | 74 | rebase_root= |
b2f82e05 | 75 | force_rebase= |
cb6020bb | 76 | allow_rerere_autoupdate= |
99de0640 MZ |
77 | # Non-empty if a rebase was in progress when 'git rebase' was invoked |
78 | in_progress= | |
79 | # One of {am, merge, interactive} | |
80 | type= | |
81 | # One of {"$GIT_DIR"/rebase-apply, "$GIT_DIR"/rebase-merge} | |
82 | state_dir= | |
34262322 MZ |
83 | # One of {'', continue, skip, abort}, as parsed from command line |
84 | action= | |
cf432ca0 MZ |
85 | preserve_merges= |
86 | autosquash= | |
90e1818f | 87 | keep_empty= |
cf432ca0 | 88 | test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t |
3ee5e540 | 89 | gpg_sign_opt= |
58634dbf | 90 | |
fa99c1e1 | 91 | read_basic_state () { |
dc8ca912 RR |
92 | test -f "$state_dir/head-name" && |
93 | test -f "$state_dir/onto" && | |
02ac45fa MZ |
94 | head_name=$(cat "$state_dir"/head-name) && |
95 | onto=$(cat "$state_dir"/onto) && | |
84df4560 MZ |
96 | # We always write to orig-head, but interactive rebase used to write to |
97 | # head. Fall back to reading from head to cover for the case that the | |
98 | # user upgraded git with an ongoing interactive rebase. | |
99 | if test -f "$state_dir"/orig-head | |
2959c283 | 100 | then |
2959c283 | 101 | orig_head=$(cat "$state_dir"/orig-head) |
84df4560 MZ |
102 | else |
103 | orig_head=$(cat "$state_dir"/head) | |
2959c283 | 104 | fi && |
7b37a7c6 MZ |
105 | GIT_QUIET=$(cat "$state_dir"/quiet) && |
106 | test -f "$state_dir"/verbose && verbose=t | |
80ff4795 MZ |
107 | test -f "$state_dir"/strategy && strategy="$(cat "$state_dir"/strategy)" |
108 | test -f "$state_dir"/strategy_opts && | |
109 | strategy_opts="$(cat "$state_dir"/strategy_opts)" | |
b3e4847e MZ |
110 | test -f "$state_dir"/allow_rerere_autoupdate && |
111 | allow_rerere_autoupdate="$(cat "$state_dir"/allow_rerere_autoupdate)" | |
3ee5e540 NV |
112 | test -f "$state_dir"/gpg_sign_opt && |
113 | gpg_sign_opt="$(cat "$state_dir"/gpg_sign_opt)" | |
02ac45fa MZ |
114 | } |
115 | ||
84df4560 MZ |
116 | write_basic_state () { |
117 | echo "$head_name" > "$state_dir"/head-name && | |
118 | echo "$onto" > "$state_dir"/onto && | |
119 | echo "$orig_head" > "$state_dir"/orig-head && | |
7b37a7c6 MZ |
120 | echo "$GIT_QUIET" > "$state_dir"/quiet && |
121 | test t = "$verbose" && : > "$state_dir"/verbose | |
80ff4795 MZ |
122 | test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy |
123 | test -n "$strategy_opts" && echo "$strategy_opts" > \ | |
124 | "$state_dir"/strategy_opts | |
b3e4847e MZ |
125 | test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \ |
126 | "$state_dir"/allow_rerere_autoupdate | |
3ee5e540 | 127 | test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt |
84df4560 MZ |
128 | } |
129 | ||
4974c2ca MZ |
130 | output () { |
131 | case "$verbose" in | |
132 | '') | |
133 | output=$("$@" 2>&1 ) | |
134 | status=$? | |
135 | test $status != 0 && printf "%s\n" "$output" | |
136 | return $status | |
137 | ;; | |
138 | *) | |
139 | "$@" | |
140 | ;; | |
141 | esac | |
142 | } | |
143 | ||
6fd2f5e6 | 144 | move_to_original_branch () { |
6fd2f5e6 JS |
145 | case "$head_name" in |
146 | refs/*) | |
147 | message="rebase finished: $head_name onto $onto" | |
148 | git update-ref -m "$message" \ | |
149 | $head_name $(git rev-parse HEAD) $orig_head && | |
53f2ffa8 JK |
150 | git symbolic-ref \ |
151 | -m "rebase finished: returning to $head_name" \ | |
152 | HEAD $head_name || | |
c7108bf9 | 153 | die "$(gettext "Could not move back to $head_name")" |
6fd2f5e6 JS |
154 | ;; |
155 | esac | |
156 | } | |
157 | ||
e4244eb3 | 158 | apply_autostash () { |
58794775 RR |
159 | if test -f "$state_dir/autostash" |
160 | then | |
161 | stash_sha1=$(cat "$state_dir/autostash") | |
162 | if git stash apply $stash_sha1 2>&1 >/dev/null | |
163 | then | |
164 | echo "$(gettext 'Applied autostash.')" | |
165 | else | |
20351bb0 RR |
166 | git stash store -m "autostash" -q $stash_sha1 || |
167 | die "$(eval_gettext "Cannot store \$stash_sha1")" | |
58794775 RR |
168 | gettext 'Applying autostash resulted in conflicts. |
169 | Your changes are safe in the stash. | |
ac1998de | 170 | You can run "git stash pop" or "git stash drop" at any time. |
58794775 RR |
171 | ' |
172 | fi | |
173 | fi | |
e4244eb3 RR |
174 | } |
175 | ||
176 | finish_rebase () { | |
177 | apply_autostash && | |
58794775 RR |
178 | git gc --auto && |
179 | rm -rf "$state_dir" | |
180 | } | |
181 | ||
8cd65967 | 182 | run_specific_rebase () { |
f8cca019 AE |
183 | if [ "$interactive_rebase" = implied ]; then |
184 | GIT_EDITOR=: | |
185 | export GIT_EDITOR | |
8a6dae10 | 186 | autosquash= |
f8cca019 | 187 | fi |
46df82d5 | 188 | . git-rebase--$type |
f5f758a5 RR |
189 | ret=$? |
190 | if test $ret -eq 0 | |
191 | then | |
58794775 | 192 | finish_rebase |
e4244eb3 RR |
193 | elif test $ret -eq 2 # special exit status for rebase -i |
194 | then | |
195 | apply_autostash && | |
196 | rm -rf "$state_dir" && | |
197 | die "Nothing to do" | |
f5f758a5 RR |
198 | fi |
199 | exit $ret | |
1b1dce4b JS |
200 | } |
201 | ||
d70b4a8f | 202 | run_pre_rebase_hook () { |
6bb4e485 | 203 | if test -z "$ok_to_skip_pre_rebase" && |
c4427656 | 204 | test -x "$GIT_DIR/hooks/pre-rebase" |
d70b4a8f | 205 | then |
bc2bbc45 | 206 | "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || |
c7108bf9 | 207 | die "$(gettext "The pre-rebase hook refused to rebase.")" |
d70b4a8f NS |
208 | fi |
209 | } | |
210 | ||
69a636ad | 211 | test -f "$apply_dir"/applying && |
c7108bf9 | 212 | die "$(gettext "It looks like git-am is in progress. Cannot rebase.")" |
9b752a6e | 213 | |
99de0640 MZ |
214 | if test -d "$apply_dir" |
215 | then | |
216 | type=am | |
217 | state_dir="$apply_dir" | |
218 | elif test -d "$merge_dir" | |
219 | then | |
220 | if test -f "$merge_dir"/interactive | |
221 | then | |
222 | type=interactive | |
223 | interactive_rebase=explicit | |
224 | else | |
225 | type=merge | |
226 | fi | |
227 | state_dir="$merge_dir" | |
228 | fi | |
229 | test -n "$type" && in_progress=t | |
230 | ||
95135b06 | 231 | total_argc=$# |
822f7c73 | 232 | while test $# != 0 |
e646c9c8 JH |
233 | do |
234 | case "$1" in | |
c4427656 | 235 | --no-verify) |
6bb4e485 | 236 | ok_to_skip_pre_rebase=yes |
c4427656 | 237 | ;; |
7baf9c4b | 238 | --verify) |
6bb4e485 | 239 | ok_to_skip_pre_rebase= |
7baf9c4b | 240 | ;; |
eb9a7cb4 | 241 | --continue|--skip|--abort|--edit-todo) |
45e2acf3 | 242 | test $total_argc -eq 2 || usage |
34262322 | 243 | action=${1##--} |
031321c6 | 244 | ;; |
b6e9e73e NV |
245 | --onto=*) |
246 | onto="${1#--onto=}" | |
e646c9c8 | 247 | ;; |
b6e9e73e NV |
248 | --exec=*) |
249 | cmd="${cmd}exec ${1#--exec=}${LF}" | |
c2145384 | 250 | ;; |
b6e9e73e | 251 | --interactive) |
cf432ca0 MZ |
252 | interactive_rebase=explicit |
253 | ;; | |
b6e9e73e | 254 | --keep-empty) |
90e1818f NH |
255 | keep_empty=yes |
256 | ;; | |
b6e9e73e | 257 | --preserve-merges) |
cf432ca0 MZ |
258 | preserve_merges=t |
259 | test -z "$interactive_rebase" && interactive_rebase=implied | |
260 | ;; | |
261 | --autosquash) | |
262 | autosquash=t | |
263 | ;; | |
264 | --no-autosquash) | |
265 | autosquash= | |
266 | ;; | |
ad8261d2 JK |
267 | --fork-point) |
268 | fork_point=t | |
269 | ;; | |
270 | --no-fork-point) | |
271 | fork_point= | |
272 | ;; | |
b6e9e73e | 273 | --merge) |
58634dbf EW |
274 | do_merge=t |
275 | ;; | |
b6e9e73e NV |
276 | --strategy-option=*) |
277 | strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--${1#--strategy-option=}")" | |
93ce190c | 278 | do_merge=t |
9765b6ab | 279 | test -z "$strategy" && strategy=recursive |
93ce190c | 280 | ;; |
b6e9e73e NV |
281 | --strategy=*) |
282 | strategy="${1#--strategy=}" | |
58634dbf EW |
283 | do_merge=t |
284 | ;; | |
b6e9e73e | 285 | --no-stat) |
a9c3821c TAV |
286 | diffstat= |
287 | ;; | |
288 | --stat) | |
289 | diffstat=t | |
290 | ;; | |
58794775 RR |
291 | --autostash) |
292 | autostash=true | |
293 | ;; | |
b6e9e73e | 294 | --verbose) |
b758789c | 295 | verbose=t |
a9c3821c | 296 | diffstat=t |
0e987a12 SB |
297 | GIT_QUIET= |
298 | ;; | |
b6e9e73e | 299 | --quiet) |
0e987a12 SB |
300 | GIT_QUIET=t |
301 | git_am_opt="$git_am_opt -q" | |
302 | verbose= | |
303 | diffstat= | |
b758789c | 304 | ;; |
b6e9e73e NV |
305 | --whitespace=*) |
306 | git_am_opt="$git_am_opt --whitespace=${1#--whitespace=}" | |
307 | case "${1#--whitespace=}" in | |
45e2acf3 | 308 | fix|strip) |
b2f82e05 SR |
309 | force_rebase=t |
310 | ;; | |
311 | esac | |
059f446d | 312 | ;; |
86c91f91 GB |
313 | --ignore-whitespace) |
314 | git_am_opt="$git_am_opt $1" | |
315 | ;; | |
570ccad3 MB |
316 | --committer-date-is-author-date|--ignore-date) |
317 | git_am_opt="$git_am_opt $1" | |
318 | force_rebase=t | |
319 | ;; | |
b6e9e73e NV |
320 | -C*) |
321 | git_am_opt="$git_am_opt $1" | |
67dad687 | 322 | ;; |
190f5323 TR |
323 | --root) |
324 | rebase_root=t | |
325 | ;; | |
b6e9e73e | 326 | --force-rebase|--no-ff) |
b2f82e05 SR |
327 | force_rebase=t |
328 | ;; | |
cb6020bb JH |
329 | --rerere-autoupdate|--no-rerere-autoupdate) |
330 | allow_rerere_autoupdate="$1" | |
331 | ;; | |
3ee5e540 NV |
332 | --gpg-sign) |
333 | gpg_sign_opt=-S | |
334 | ;; | |
335 | --gpg-sign=*) | |
336 | gpg_sign_opt="-S${1#--gpg-sign=}" | |
337 | ;; | |
45e2acf3 MZ |
338 | --) |
339 | shift | |
e646c9c8 JH |
340 | break |
341 | ;; | |
342 | esac | |
343 | shift | |
344 | done | |
51b2ead0 | 345 | test $# -gt 2 && usage |
2db8aaec | 346 | |
c2145384 LK |
347 | if test -n "$cmd" && |
348 | test "$interactive_rebase" != explicit | |
349 | then | |
465d6a00 | 350 | die "$(gettext "The --exec option must be used with the --interactive option")" |
c2145384 LK |
351 | fi |
352 | ||
cf432ca0 MZ |
353 | if test -n "$action" |
354 | then | |
c7108bf9 | 355 | test -z "$in_progress" && die "$(gettext "No rebase in progress?")" |
2959c283 MZ |
356 | # Only interactive rebase uses detailed reflog messages |
357 | if test "$type" = interactive && test "$GIT_REFLOG_ACTION" = rebase | |
358 | then | |
359 | GIT_REFLOG_ACTION="rebase -i ($action)" | |
360 | export GIT_REFLOG_ACTION | |
361 | fi | |
cf432ca0 | 362 | fi |
34262322 | 363 | |
eb9a7cb4 AW |
364 | if test "$action" = "edit-todo" && test "$type" != "interactive" |
365 | then | |
366 | die "$(gettext "The --edit-todo action can only be used during interactive rebase.")" | |
367 | fi | |
368 | ||
34262322 MZ |
369 | case "$action" in |
370 | continue) | |
2959c283 MZ |
371 | # Sanity check |
372 | git rev-parse --verify HEAD >/dev/null || | |
c7108bf9 | 373 | die "$(gettext "Cannot read HEAD")" |
34262322 MZ |
374 | git update-index --ignore-submodules --refresh && |
375 | git diff-files --quiet --ignore-submodules || { | |
c7108bf9 JX |
376 | echo "$(gettext "You must edit all merge conflicts and then |
377 | mark them as resolved using git add")" | |
34262322 MZ |
378 | exit 1 |
379 | } | |
fa99c1e1 MZ |
380 | read_basic_state |
381 | run_specific_rebase | |
34262322 MZ |
382 | ;; |
383 | skip) | |
4974c2ca | 384 | output git reset --hard HEAD || exit $? |
fa99c1e1 MZ |
385 | read_basic_state |
386 | run_specific_rebase | |
34262322 MZ |
387 | ;; |
388 | abort) | |
389 | git rerere clear | |
fa99c1e1 | 390 | read_basic_state |
34262322 MZ |
391 | case "$head_name" in |
392 | refs/*) | |
ea69619c | 393 | git symbolic-ref -m "rebase: aborting" HEAD $head_name || |
c7108bf9 | 394 | die "$(eval_gettext "Could not move back to \$head_name")" |
34262322 MZ |
395 | ;; |
396 | esac | |
4974c2ca | 397 | output git reset --hard $orig_head |
58794775 | 398 | finish_rebase |
34262322 MZ |
399 | exit |
400 | ;; | |
eb9a7cb4 AW |
401 | edit-todo) |
402 | run_specific_rebase | |
403 | ;; | |
34262322 MZ |
404 | esac |
405 | ||
99de0640 MZ |
406 | # Make sure no rebase is in progress |
407 | if test -n "$in_progress" | |
7f4bd5d8 | 408 | then |
c7108bf9 JX |
409 | state_dir_base=${state_dir##*/} |
410 | cmd_live_rebase="git rebase (--continue | --abort | --skip)" | |
411 | cmd_clear_stale_rebase="rm -fr \"$state_dir\"" | |
412 | die " | |
413 | $(eval_gettext 'It seems that there is already a $state_dir_base directory, and | |
e39beac6 | 414 | I wonder if you are in the middle of another rebase. If that is the |
99de0640 | 415 | case, please try |
c7108bf9 | 416 | $cmd_live_rebase |
99de0640 | 417 | If that is not the case, please |
c7108bf9 | 418 | $cmd_clear_stale_rebase |
9b752a6e | 419 | and run me again. I am stopping in case you still have something |
c7108bf9 | 420 | valuable there.')" |
7f4bd5d8 JH |
421 | fi |
422 | ||
df5df20c CW |
423 | if test -n "$rebase_root" && test -z "$onto" |
424 | then | |
425 | test -z "$interactive_rebase" && interactive_rebase=implied | |
426 | fi | |
427 | ||
cf432ca0 MZ |
428 | if test -n "$interactive_rebase" |
429 | then | |
430 | type=interactive | |
431 | state_dir="$merge_dir" | |
432 | elif test -n "$do_merge" | |
433 | then | |
434 | type=merge | |
435 | state_dir="$merge_dir" | |
436 | else | |
437 | type=am | |
438 | state_dir="$apply_dir" | |
439 | fi | |
440 | ||
190f5323 TR |
441 | if test -z "$rebase_root" |
442 | then | |
15a147e6 MZ |
443 | case "$#" in |
444 | 0) | |
445 | if ! upstream_name=$(git rev-parse --symbolic-full-name \ | |
446 | --verify -q @{upstream} 2>/dev/null) | |
447 | then | |
448 | . git-parse-remote | |
449 | error_on_missing_default_upstream "rebase" "rebase" \ | |
3c02396a | 450 | "against" "git rebase <branch>" |
15a147e6 | 451 | fi |
ad8261d2 JK |
452 | |
453 | test "$fork_point" = auto && fork_point=t | |
15a147e6 MZ |
454 | ;; |
455 | *) upstream_name="$1" | |
4f407407 BG |
456 | if test "$upstream_name" = "-" |
457 | then | |
458 | upstream_name="@{-1}" | |
459 | fi | |
15a147e6 MZ |
460 | shift |
461 | ;; | |
462 | esac | |
2e6e276d | 463 | upstream=$(peel_committish "${upstream_name}") || |
c7108bf9 | 464 | die "$(eval_gettext "invalid upstream \$upstream_name")" |
190f5323 TR |
465 | upstream_arg="$upstream_name" |
466 | else | |
df5df20c CW |
467 | if test -z "$onto" |
468 | then | |
469 | empty_tree=`git hash-object -t tree /dev/null` | |
470 | onto=`git commit-tree $empty_tree </dev/null` | |
471 | squash_onto="$onto" | |
472 | fi | |
190f5323 TR |
473 | unset upstream_name |
474 | unset upstream | |
f2b6a199 | 475 | test $# -gt 1 && usage |
46df82d5 | 476 | upstream_arg=--root |
190f5323 | 477 | fi |
32d99544 | 478 | |
a1bf91e0 | 479 | # Make sure the branch to rebase onto is valid. |
6bb4e485 | 480 | onto_name=${onto-"$upstream_name"} |
9f21e97d NS |
481 | case "$onto_name" in |
482 | *...*) | |
483 | if left=${onto_name%...*} right=${onto_name#*...} && | |
484 | onto=$(git merge-base --all ${left:-HEAD} ${right:-HEAD}) | |
485 | then | |
486 | case "$onto" in | |
487 | ?*"$LF"?*) | |
c7108bf9 | 488 | die "$(eval_gettext "\$onto_name: there are more than one merge bases")" |
9f21e97d NS |
489 | ;; |
490 | '') | |
c7108bf9 | 491 | die "$(eval_gettext "\$onto_name: there is no merge base")" |
9f21e97d NS |
492 | ;; |
493 | esac | |
494 | else | |
c7108bf9 | 495 | die "$(eval_gettext "\$onto_name: there is no merge base")" |
9f21e97d NS |
496 | fi |
497 | ;; | |
498 | *) | |
2e6e276d | 499 | onto=$(peel_committish "$onto_name") || |
c7108bf9 | 500 | die "$(eval_gettext "Does not point to a valid commit: \$onto_name")" |
9f21e97d NS |
501 | ;; |
502 | esac | |
a1bf91e0 | 503 | |
0cb06644 JH |
504 | # If the branch to rebase is given, that is the branch we will rebase |
505 | # $branch_name -- branch being rebased, or HEAD (already detached) | |
506 | # $orig_head -- commit object name of tip of the branch before rebasing | |
507 | # $head_name -- refs/heads/<that-branch> or "detached HEAD" | |
508 | switch_to= | |
59e6b23a | 509 | case "$#" in |
190f5323 | 510 | 1) |
0cb06644 | 511 | # Is it "rebase other $branchname" or "rebase other $commit"? |
190f5323 TR |
512 | branch_name="$1" |
513 | switch_to="$1" | |
0cb06644 | 514 | |
190f5323 | 515 | if git show-ref --verify --quiet -- "refs/heads/$1" && |
cb82a05d | 516 | orig_head=$(git rev-parse -q --verify "refs/heads/$1") |
0cb06644 | 517 | then |
190f5323 | 518 | head_name="refs/heads/$1" |
cb82a05d | 519 | elif orig_head=$(git rev-parse -q --verify "$1") |
0cb06644 JH |
520 | then |
521 | head_name="detached HEAD" | |
522 | else | |
c7108bf9 | 523 | die "$(eval_gettext "fatal: no such branch: \$branch_name")" |
0cb06644 | 524 | fi |
e646c9c8 | 525 | ;; |
f2b6a199 | 526 | 0) |
0cb06644 | 527 | # Do not need to switch branches, we are already on it. |
bcf31618 JH |
528 | if branch_name=`git symbolic-ref -q HEAD` |
529 | then | |
0cb06644 | 530 | head_name=$branch_name |
bcf31618 JH |
531 | branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'` |
532 | else | |
0cb06644 | 533 | head_name="detached HEAD" |
bcf31618 JH |
534 | branch_name=HEAD ;# detached |
535 | fi | |
ea709800 | 536 | orig_head=$(git rev-parse --verify HEAD) || exit |
e646c9c8 | 537 | ;; |
f2b6a199 MZ |
538 | *) |
539 | die "BUG: unexpected number of arguments left to parse" | |
540 | ;; | |
59e6b23a JH |
541 | esac |
542 | ||
ad8261d2 JK |
543 | if test "$fork_point" = t |
544 | then | |
bb3f4583 JK |
545 | new_upstream=$(git merge-base --fork-point "$upstream_name" \ |
546 | "${switch_to:-HEAD}") | |
ad8261d2 JK |
547 | if test -n "$new_upstream" |
548 | then | |
549 | upstream=$new_upstream | |
550 | fi | |
551 | fi | |
552 | ||
58794775 RR |
553 | if test "$autostash" = true && ! (require_clean_work_tree) 2>/dev/null |
554 | then | |
555 | stash_sha1=$(git stash create "autostash") || | |
556 | die "$(gettext 'Cannot autostash')" | |
557 | ||
558 | mkdir -p "$state_dir" && | |
559 | echo $stash_sha1 >"$state_dir/autostash" && | |
560 | stash_abbrev=$(git rev-parse --short $stash_sha1) && | |
561 | echo "$(eval_gettext 'Created autostash: $stash_abbrev')" && | |
562 | git reset --hard | |
563 | fi | |
564 | ||
c7108bf9 | 565 | require_clean_work_tree "rebase" "$(gettext "Please commit or stash them.")" |
8f9bfb64 | 566 | |
cb82a05d MZ |
567 | # Now we are rebasing commits $upstream..$orig_head (or with --root, |
568 | # everything leading up to $orig_head) on top of $onto | |
e646c9c8 | 569 | |
1308c17b | 570 | # Check if we are already based on $onto with linear history, |
cc1453e1 MZ |
571 | # but this should be done only when upstream and onto are the same |
572 | # and if this is not an interactive rebase. | |
cb82a05d | 573 | mb=$(git merge-base "$onto" "$orig_head") |
cc1453e1 MZ |
574 | if test "$type" != interactive && test "$upstream" = "$onto" && |
575 | test "$mb" = "$onto" && | |
1308c17b | 576 | # linear history? |
cb82a05d | 577 | ! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null |
7f4bd5d8 | 578 | then |
b2f82e05 SR |
579 | if test -z "$force_rebase" |
580 | then | |
581 | # Lazily switch to the target branch if needed... | |
4b03df21 RR |
582 | test -z "$switch_to" || |
583 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" \ | |
584 | git checkout "$switch_to" -- | |
c7108bf9 | 585 | say "$(eval_gettext "Current branch \$branch_name is up to date.")" |
96e2b99e | 586 | finish_rebase |
b2f82e05 SR |
587 | exit 0 |
588 | else | |
c7108bf9 | 589 | say "$(eval_gettext "Current branch \$branch_name is up to date, rebase forced.")" |
b2f82e05 | 590 | fi |
7f4bd5d8 JH |
591 | fi |
592 | ||
8f9bfb64 MZ |
593 | # If a hook exists, give it a chance to interrupt |
594 | run_pre_rebase_hook "$upstream_arg" "$@" | |
595 | ||
a9c3821c TAV |
596 | if test -n "$diffstat" |
597 | then | |
598 | if test -n "$verbose" | |
599 | then | |
c7108bf9 | 600 | echo "$(eval_gettext "Changes from \$mb to \$onto:")" |
a9c3821c TAV |
601 | fi |
602 | # We want color (if set), but no pager | |
603 | GIT_PAGER='' git diff --stat --summary "$mb" "$onto" | |
604 | fi | |
605 | ||
fa99c1e1 | 606 | test "$type" = interactive && run_specific_rebase |
f4107d9c MZ |
607 | |
608 | # Detach HEAD and reset the tree | |
c7108bf9 | 609 | say "$(gettext "First, rewinding head to replay your work on top of it...")" |
4b03df21 RR |
610 | |
611 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" \ | |
612 | git checkout -q "$onto^0" || die "could not detach HEAD" | |
cb82a05d | 613 | git update-ref ORIG_HEAD $orig_head |
f4107d9c | 614 | |
e646c9c8 | 615 | # If the $onto is a proper descendant of the tip of the branch, then |
a75d7b54 | 616 | # we just fast-forwarded. |
cb82a05d | 617 | if test "$mb" = "$orig_head" |
32d99544 | 618 | then |
c7108bf9 | 619 | say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")" |
6fd2f5e6 | 620 | move_to_original_branch |
af2f0ebc | 621 | finish_rebase |
32d99544 LS |
622 | exit 0 |
623 | fi | |
624 | ||
190f5323 TR |
625 | if test -n "$rebase_root" |
626 | then | |
627 | revisions="$onto..$orig_head" | |
628 | else | |
629 | revisions="$upstream..$orig_head" | |
630 | fi | |
631 | ||
fa99c1e1 | 632 | run_specific_rebase |