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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>] |
82cb775c | 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 | |
619e3604 | 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 |
a6c612b5 | 27 | allow-empty-message allow rebasing commits with empty messages |
45e2acf3 MZ |
28 | f,force-rebase! force rebase even if branch is up to date |
29 | X,strategy-option=! pass the argument through to the merge strategy | |
30 | stat! display a diffstat of what changed upstream | |
31 | n,no-stat! do not show diffstat of what changed upstream | |
32 | verify allow pre-rebase hook to run | |
33 | rerere-autoupdate allow rerere to update index with resolved conflicts | |
34 | root! rebase all reachable commits up to the root(s) | |
35 | autosquash move commits that begin with squash!/fixup! under -i | |
36 | committer-date-is-author-date! passed to 'git am' | |
37 | ignore-date! passed to 'git am' | |
9f79524a | 38 | signoff passed to 'git am' |
45e2acf3 MZ |
39 | whitespace=! passed to 'git apply' |
40 | ignore-whitespace! passed to 'git apply' | |
41 | C=! passed to 'git apply' | |
3ee5e540 | 42 | S,gpg-sign? GPG-sign commits |
45e2acf3 | 43 | Actions: |
5960bc9d MZ |
44 | continue! continue |
45 | abort! abort and check out the original branch | |
46 | skip! skip current patch and continue | |
eb9a7cb4 | 47 | edit-todo! edit the todo list during an interactive rebase |
9512177b | 48 | quit! abort but keep HEAD where it is |
45e2acf3 | 49 | " |
ae2b0f15 | 50 | . git-sh-setup |
f9474132 | 51 | set_reflog_action rebase |
035b5bf6 | 52 | require_work_tree_exists |
533b7039 | 53 | cd_to_toplevel |
4282c4fb | 54 | |
61dfa1bb JH |
55 | LF=' |
56 | ' | |
6bb4e485 MZ |
57 | ok_to_skip_pre_rebase= |
58 | resolvemsg=" | |
5fdacc17 WD |
59 | $(gettext 'Resolve all conflicts manually, mark them as resolved with |
60 | "git add/rm <conflicted_files>", then run "git rebase --continue". | |
61 | You can instead skip this commit: run "git rebase --skip". | |
62 | To abort and get back to the state before "git rebase", run "git rebase --abort".') | |
cc120056 | 63 | " |
6bb4e485 | 64 | unset onto |
1e0dacdb | 65 | unset restrict_revision |
c2145384 | 66 | cmd= |
9765b6ab | 67 | strategy= |
93ce190c | 68 | strategy_opts= |
58634dbf | 69 | do_merge= |
69a636ad MZ |
70 | merge_dir="$GIT_DIR"/rebase-merge |
71 | apply_dir="$GIT_DIR"/rebase-apply | |
b758789c | 72 | verbose= |
9474a029 MZ |
73 | diffstat= |
74 | test "$(git config --bool rebase.stat)" = true && diffstat=t | |
58794775 | 75 | autostash="$(git config --bool rebase.autostash || echo false)" |
ad8261d2 | 76 | fork_point=auto |
67dad687 | 77 | git_am_opt= |
9eaa858e | 78 | git_format_patch_opt= |
190f5323 | 79 | rebase_root= |
b2f82e05 | 80 | force_rebase= |
cb6020bb | 81 | allow_rerere_autoupdate= |
99de0640 MZ |
82 | # Non-empty if a rebase was in progress when 'git rebase' was invoked |
83 | in_progress= | |
84 | # One of {am, merge, interactive} | |
85 | type= | |
86 | # One of {"$GIT_DIR"/rebase-apply, "$GIT_DIR"/rebase-merge} | |
87 | state_dir= | |
34262322 MZ |
88 | # One of {'', continue, skip, abort}, as parsed from command line |
89 | action= | |
cf432ca0 MZ |
90 | preserve_merges= |
91 | autosquash= | |
90e1818f | 92 | keep_empty= |
a6c612b5 | 93 | allow_empty_message= |
cf432ca0 | 94 | test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t |
66948561 JH |
95 | case "$(git config --bool commit.gpgsign)" in |
96 | true) gpg_sign_opt=-S ;; | |
97 | *) gpg_sign_opt= ;; | |
98 | esac | |
58634dbf | 99 | |
fa99c1e1 | 100 | read_basic_state () { |
dc8ca912 RR |
101 | test -f "$state_dir/head-name" && |
102 | test -f "$state_dir/onto" && | |
02ac45fa MZ |
103 | head_name=$(cat "$state_dir"/head-name) && |
104 | onto=$(cat "$state_dir"/onto) && | |
84df4560 MZ |
105 | # We always write to orig-head, but interactive rebase used to write to |
106 | # head. Fall back to reading from head to cover for the case that the | |
107 | # user upgraded git with an ongoing interactive rebase. | |
108 | if test -f "$state_dir"/orig-head | |
2959c283 | 109 | then |
2959c283 | 110 | orig_head=$(cat "$state_dir"/orig-head) |
84df4560 MZ |
111 | else |
112 | orig_head=$(cat "$state_dir"/head) | |
2959c283 | 113 | fi && |
7b37a7c6 MZ |
114 | GIT_QUIET=$(cat "$state_dir"/quiet) && |
115 | test -f "$state_dir"/verbose && verbose=t | |
80ff4795 MZ |
116 | test -f "$state_dir"/strategy && strategy="$(cat "$state_dir"/strategy)" |
117 | test -f "$state_dir"/strategy_opts && | |
118 | strategy_opts="$(cat "$state_dir"/strategy_opts)" | |
b3e4847e MZ |
119 | test -f "$state_dir"/allow_rerere_autoupdate && |
120 | allow_rerere_autoupdate="$(cat "$state_dir"/allow_rerere_autoupdate)" | |
3ee5e540 NV |
121 | test -f "$state_dir"/gpg_sign_opt && |
122 | gpg_sign_opt="$(cat "$state_dir"/gpg_sign_opt)" | |
02ac45fa MZ |
123 | } |
124 | ||
84df4560 MZ |
125 | write_basic_state () { |
126 | echo "$head_name" > "$state_dir"/head-name && | |
127 | echo "$onto" > "$state_dir"/onto && | |
128 | echo "$orig_head" > "$state_dir"/orig-head && | |
7b37a7c6 MZ |
129 | echo "$GIT_QUIET" > "$state_dir"/quiet && |
130 | test t = "$verbose" && : > "$state_dir"/verbose | |
80ff4795 MZ |
131 | test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy |
132 | test -n "$strategy_opts" && echo "$strategy_opts" > \ | |
133 | "$state_dir"/strategy_opts | |
b3e4847e MZ |
134 | test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \ |
135 | "$state_dir"/allow_rerere_autoupdate | |
3ee5e540 | 136 | test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt |
84df4560 MZ |
137 | } |
138 | ||
4974c2ca MZ |
139 | output () { |
140 | case "$verbose" in | |
141 | '') | |
142 | output=$("$@" 2>&1 ) | |
143 | status=$? | |
144 | test $status != 0 && printf "%s\n" "$output" | |
145 | return $status | |
146 | ;; | |
147 | *) | |
148 | "$@" | |
149 | ;; | |
150 | esac | |
151 | } | |
152 | ||
6fd2f5e6 | 153 | move_to_original_branch () { |
6fd2f5e6 JS |
154 | case "$head_name" in |
155 | refs/*) | |
156 | message="rebase finished: $head_name onto $onto" | |
157 | git update-ref -m "$message" \ | |
158 | $head_name $(git rev-parse HEAD) $orig_head && | |
53f2ffa8 JK |
159 | git symbolic-ref \ |
160 | -m "rebase finished: returning to $head_name" \ | |
161 | HEAD $head_name || | |
24a6df48 | 162 | die "$(eval_gettext "Could not move back to \$head_name")" |
6fd2f5e6 JS |
163 | ;; |
164 | esac | |
165 | } | |
166 | ||
e4244eb3 | 167 | apply_autostash () { |
58794775 RR |
168 | if test -f "$state_dir/autostash" |
169 | then | |
170 | stash_sha1=$(cat "$state_dir/autostash") | |
eadf1c8f | 171 | if git stash apply $stash_sha1 >/dev/null 2>&1 |
58794775 | 172 | then |
cdb866b3 | 173 | echo "$(gettext 'Applied autostash.')" >&2 |
58794775 | 174 | else |
20351bb0 RR |
175 | git stash store -m "autostash" -q $stash_sha1 || |
176 | die "$(eval_gettext "Cannot store \$stash_sha1")" | |
58794775 RR |
177 | gettext 'Applying autostash resulted in conflicts. |
178 | Your changes are safe in the stash. | |
ac1998de | 179 | You can run "git stash pop" or "git stash drop" at any time. |
cdb866b3 | 180 | ' >&2 |
58794775 RR |
181 | fi |
182 | fi | |
e4244eb3 RR |
183 | } |
184 | ||
185 | finish_rebase () { | |
186 | apply_autostash && | |
8c24f5b0 | 187 | { git gc --auto || true; } && |
58794775 RR |
188 | rm -rf "$state_dir" |
189 | } | |
190 | ||
8cd65967 | 191 | run_specific_rebase () { |
f8cca019 AE |
192 | if [ "$interactive_rebase" = implied ]; then |
193 | GIT_EDITOR=: | |
194 | export GIT_EDITOR | |
8a6dae10 | 195 | autosquash= |
f8cca019 | 196 | fi |
46df82d5 | 197 | . git-rebase--$type |
f5f758a5 RR |
198 | ret=$? |
199 | if test $ret -eq 0 | |
200 | then | |
58794775 | 201 | finish_rebase |
e4244eb3 RR |
202 | elif test $ret -eq 2 # special exit status for rebase -i |
203 | then | |
204 | apply_autostash && | |
205 | rm -rf "$state_dir" && | |
206 | die "Nothing to do" | |
f5f758a5 RR |
207 | fi |
208 | exit $ret | |
1b1dce4b JS |
209 | } |
210 | ||
d70b4a8f | 211 | run_pre_rebase_hook () { |
6bb4e485 | 212 | if test -z "$ok_to_skip_pre_rebase" && |
b849b954 | 213 | test -x "$(git rev-parse --git-path hooks/pre-rebase)" |
d70b4a8f | 214 | then |
b849b954 | 215 | "$(git rev-parse --git-path hooks/pre-rebase)" ${1+"$@"} || |
c7108bf9 | 216 | die "$(gettext "The pre-rebase hook refused to rebase.")" |
d70b4a8f NS |
217 | fi |
218 | } | |
219 | ||
69a636ad | 220 | test -f "$apply_dir"/applying && |
82cb775c | 221 | die "$(gettext "It looks like 'git am' is in progress. Cannot rebase.")" |
9b752a6e | 222 | |
99de0640 MZ |
223 | if test -d "$apply_dir" |
224 | then | |
225 | type=am | |
226 | state_dir="$apply_dir" | |
227 | elif test -d "$merge_dir" | |
228 | then | |
229 | if test -f "$merge_dir"/interactive | |
230 | then | |
231 | type=interactive | |
232 | interactive_rebase=explicit | |
233 | else | |
234 | type=merge | |
235 | fi | |
236 | state_dir="$merge_dir" | |
237 | fi | |
238 | test -n "$type" && in_progress=t | |
239 | ||
95135b06 | 240 | total_argc=$# |
822f7c73 | 241 | while test $# != 0 |
e646c9c8 JH |
242 | do |
243 | case "$1" in | |
c4427656 | 244 | --no-verify) |
6bb4e485 | 245 | ok_to_skip_pre_rebase=yes |
c4427656 | 246 | ;; |
7baf9c4b | 247 | --verify) |
6bb4e485 | 248 | ok_to_skip_pre_rebase= |
7baf9c4b | 249 | ;; |
9512177b | 250 | --continue|--skip|--abort|--quit|--edit-todo) |
45e2acf3 | 251 | test $total_argc -eq 2 || usage |
34262322 | 252 | action=${1##--} |
031321c6 | 253 | ;; |
b6e9e73e NV |
254 | --onto=*) |
255 | onto="${1#--onto=}" | |
e646c9c8 | 256 | ;; |
b6e9e73e NV |
257 | --exec=*) |
258 | cmd="${cmd}exec ${1#--exec=}${LF}" | |
78ec2400 | 259 | test -z "$interactive_rebase" && interactive_rebase=implied |
c2145384 | 260 | ;; |
b6e9e73e | 261 | --interactive) |
cf432ca0 MZ |
262 | interactive_rebase=explicit |
263 | ;; | |
b6e9e73e | 264 | --keep-empty) |
90e1818f NH |
265 | keep_empty=yes |
266 | ;; | |
a6c612b5 GS |
267 | --allow-empty-message) |
268 | allow_empty_message=--allow-empty-message | |
269 | ;; | |
b6e9e73e | 270 | --preserve-merges) |
cf432ca0 MZ |
271 | preserve_merges=t |
272 | test -z "$interactive_rebase" && interactive_rebase=implied | |
273 | ;; | |
274 | --autosquash) | |
275 | autosquash=t | |
276 | ;; | |
277 | --no-autosquash) | |
278 | autosquash= | |
279 | ;; | |
ad8261d2 JK |
280 | --fork-point) |
281 | fork_point=t | |
282 | ;; | |
283 | --no-fork-point) | |
284 | fork_point= | |
285 | ;; | |
b6e9e73e | 286 | --merge) |
58634dbf EW |
287 | do_merge=t |
288 | ;; | |
b6e9e73e NV |
289 | --strategy-option=*) |
290 | strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--${1#--strategy-option=}")" | |
93ce190c | 291 | do_merge=t |
9765b6ab | 292 | test -z "$strategy" && strategy=recursive |
93ce190c | 293 | ;; |
b6e9e73e NV |
294 | --strategy=*) |
295 | strategy="${1#--strategy=}" | |
58634dbf EW |
296 | do_merge=t |
297 | ;; | |
b6e9e73e | 298 | --no-stat) |
a9c3821c TAV |
299 | diffstat= |
300 | ;; | |
301 | --stat) | |
302 | diffstat=t | |
303 | ;; | |
58794775 RR |
304 | --autostash) |
305 | autostash=true | |
306 | ;; | |
619e3604 JK |
307 | --no-autostash) |
308 | autostash=false | |
309 | ;; | |
b6e9e73e | 310 | --verbose) |
b758789c | 311 | verbose=t |
a9c3821c | 312 | diffstat=t |
0e987a12 SB |
313 | GIT_QUIET= |
314 | ;; | |
b6e9e73e | 315 | --quiet) |
0e987a12 SB |
316 | GIT_QUIET=t |
317 | git_am_opt="$git_am_opt -q" | |
318 | verbose= | |
319 | diffstat= | |
b758789c | 320 | ;; |
b6e9e73e NV |
321 | --whitespace=*) |
322 | git_am_opt="$git_am_opt --whitespace=${1#--whitespace=}" | |
323 | case "${1#--whitespace=}" in | |
45e2acf3 | 324 | fix|strip) |
b2f82e05 SR |
325 | force_rebase=t |
326 | ;; | |
327 | esac | |
059f446d | 328 | ;; |
86c91f91 GB |
329 | --ignore-whitespace) |
330 | git_am_opt="$git_am_opt $1" | |
331 | ;; | |
9f79524a | 332 | --committer-date-is-author-date|--ignore-date|--signoff|--no-signoff) |
570ccad3 MB |
333 | git_am_opt="$git_am_opt $1" |
334 | force_rebase=t | |
335 | ;; | |
b6e9e73e NV |
336 | -C*) |
337 | git_am_opt="$git_am_opt $1" | |
67dad687 | 338 | ;; |
190f5323 TR |
339 | --root) |
340 | rebase_root=t | |
341 | ;; | |
b6e9e73e | 342 | --force-rebase|--no-ff) |
b2f82e05 SR |
343 | force_rebase=t |
344 | ;; | |
cb6020bb JH |
345 | --rerere-autoupdate|--no-rerere-autoupdate) |
346 | allow_rerere_autoupdate="$1" | |
347 | ;; | |
3ee5e540 NV |
348 | --gpg-sign) |
349 | gpg_sign_opt=-S | |
350 | ;; | |
351 | --gpg-sign=*) | |
352 | gpg_sign_opt="-S${1#--gpg-sign=}" | |
353 | ;; | |
45e2acf3 MZ |
354 | --) |
355 | shift | |
e646c9c8 JH |
356 | break |
357 | ;; | |
697bc885 BC |
358 | *) |
359 | usage | |
360 | ;; | |
e646c9c8 JH |
361 | esac |
362 | shift | |
363 | done | |
51b2ead0 | 364 | test $# -gt 2 && usage |
2db8aaec | 365 | |
cf432ca0 MZ |
366 | if test -n "$action" |
367 | then | |
c7108bf9 | 368 | test -z "$in_progress" && die "$(gettext "No rebase in progress?")" |
2959c283 MZ |
369 | # Only interactive rebase uses detailed reflog messages |
370 | if test "$type" = interactive && test "$GIT_REFLOG_ACTION" = rebase | |
371 | then | |
372 | GIT_REFLOG_ACTION="rebase -i ($action)" | |
373 | export GIT_REFLOG_ACTION | |
374 | fi | |
cf432ca0 | 375 | fi |
34262322 | 376 | |
eb9a7cb4 AW |
377 | if test "$action" = "edit-todo" && test "$type" != "interactive" |
378 | then | |
379 | die "$(gettext "The --edit-todo action can only be used during interactive rebase.")" | |
380 | fi | |
381 | ||
34262322 MZ |
382 | case "$action" in |
383 | continue) | |
2959c283 MZ |
384 | # Sanity check |
385 | git rev-parse --verify HEAD >/dev/null || | |
c7108bf9 | 386 | die "$(gettext "Cannot read HEAD")" |
34262322 MZ |
387 | git update-index --ignore-submodules --refresh && |
388 | git diff-files --quiet --ignore-submodules || { | |
c7108bf9 JX |
389 | echo "$(gettext "You must edit all merge conflicts and then |
390 | mark them as resolved using git add")" | |
34262322 MZ |
391 | exit 1 |
392 | } | |
fa99c1e1 MZ |
393 | read_basic_state |
394 | run_specific_rebase | |
34262322 MZ |
395 | ;; |
396 | skip) | |
4974c2ca | 397 | output git reset --hard HEAD || exit $? |
fa99c1e1 MZ |
398 | read_basic_state |
399 | run_specific_rebase | |
34262322 MZ |
400 | ;; |
401 | abort) | |
402 | git rerere clear | |
fa99c1e1 | 403 | read_basic_state |
34262322 MZ |
404 | case "$head_name" in |
405 | refs/*) | |
ea69619c | 406 | git symbolic-ref -m "rebase: aborting" HEAD $head_name || |
c7108bf9 | 407 | die "$(eval_gettext "Could not move back to \$head_name")" |
34262322 MZ |
408 | ;; |
409 | esac | |
4974c2ca | 410 | output git reset --hard $orig_head |
58794775 | 411 | finish_rebase |
34262322 MZ |
412 | exit |
413 | ;; | |
9512177b NTND |
414 | quit) |
415 | exec rm -rf "$state_dir" | |
416 | ;; | |
eb9a7cb4 AW |
417 | edit-todo) |
418 | run_specific_rebase | |
419 | ;; | |
34262322 MZ |
420 | esac |
421 | ||
99de0640 MZ |
422 | # Make sure no rebase is in progress |
423 | if test -n "$in_progress" | |
7f4bd5d8 | 424 | then |
c7108bf9 JX |
425 | state_dir_base=${state_dir##*/} |
426 | cmd_live_rebase="git rebase (--continue | --abort | --skip)" | |
427 | cmd_clear_stale_rebase="rm -fr \"$state_dir\"" | |
428 | die " | |
429 | $(eval_gettext 'It seems that there is already a $state_dir_base directory, and | |
e39beac6 | 430 | I wonder if you are in the middle of another rebase. If that is the |
99de0640 | 431 | case, please try |
c7108bf9 | 432 | $cmd_live_rebase |
99de0640 | 433 | If that is not the case, please |
c7108bf9 | 434 | $cmd_clear_stale_rebase |
9b752a6e | 435 | and run me again. I am stopping in case you still have something |
c7108bf9 | 436 | valuable there.')" |
7f4bd5d8 JH |
437 | fi |
438 | ||
df5df20c CW |
439 | if test -n "$rebase_root" && test -z "$onto" |
440 | then | |
441 | test -z "$interactive_rebase" && interactive_rebase=implied | |
442 | fi | |
443 | ||
cf432ca0 MZ |
444 | if test -n "$interactive_rebase" |
445 | then | |
446 | type=interactive | |
447 | state_dir="$merge_dir" | |
448 | elif test -n "$do_merge" | |
449 | then | |
450 | type=merge | |
451 | state_dir="$merge_dir" | |
452 | else | |
453 | type=am | |
454 | state_dir="$apply_dir" | |
455 | fi | |
456 | ||
9eaa858e KW |
457 | if test -t 2 && test -z "$GIT_QUIET" |
458 | then | |
459 | git_format_patch_opt="$git_format_patch_opt --progress" | |
460 | fi | |
461 | ||
190f5323 TR |
462 | if test -z "$rebase_root" |
463 | then | |
15a147e6 MZ |
464 | case "$#" in |
465 | 0) | |
466 | if ! upstream_name=$(git rev-parse --symbolic-full-name \ | |
467 | --verify -q @{upstream} 2>/dev/null) | |
468 | then | |
469 | . git-parse-remote | |
470 | error_on_missing_default_upstream "rebase" "rebase" \ | |
c36d8eee | 471 | "against" "git rebase $(gettext '<branch>')" |
15a147e6 | 472 | fi |
ad8261d2 JK |
473 | |
474 | test "$fork_point" = auto && fork_point=t | |
15a147e6 MZ |
475 | ;; |
476 | *) upstream_name="$1" | |
4f407407 BG |
477 | if test "$upstream_name" = "-" |
478 | then | |
479 | upstream_name="@{-1}" | |
480 | fi | |
15a147e6 MZ |
481 | shift |
482 | ;; | |
483 | esac | |
2e6e276d | 484 | upstream=$(peel_committish "${upstream_name}") || |
ca7de7b1 | 485 | die "$(eval_gettext "invalid upstream '\$upstream_name'")" |
190f5323 TR |
486 | upstream_arg="$upstream_name" |
487 | else | |
df5df20c CW |
488 | if test -z "$onto" |
489 | then | |
728fc79c EP |
490 | empty_tree=$(git hash-object -t tree /dev/null) |
491 | onto=$(git commit-tree $empty_tree </dev/null) | |
df5df20c CW |
492 | squash_onto="$onto" |
493 | fi | |
190f5323 TR |
494 | unset upstream_name |
495 | unset upstream | |
f2b6a199 | 496 | test $# -gt 1 && usage |
46df82d5 | 497 | upstream_arg=--root |
190f5323 | 498 | fi |
32d99544 | 499 | |
a1bf91e0 | 500 | # Make sure the branch to rebase onto is valid. |
6bb4e485 | 501 | onto_name=${onto-"$upstream_name"} |
9f21e97d NS |
502 | case "$onto_name" in |
503 | *...*) | |
504 | if left=${onto_name%...*} right=${onto_name#*...} && | |
505 | onto=$(git merge-base --all ${left:-HEAD} ${right:-HEAD}) | |
506 | then | |
507 | case "$onto" in | |
508 | ?*"$LF"?*) | |
c7108bf9 | 509 | die "$(eval_gettext "\$onto_name: there are more than one merge bases")" |
9f21e97d NS |
510 | ;; |
511 | '') | |
c7108bf9 | 512 | die "$(eval_gettext "\$onto_name: there is no merge base")" |
9f21e97d NS |
513 | ;; |
514 | esac | |
515 | else | |
c7108bf9 | 516 | die "$(eval_gettext "\$onto_name: there is no merge base")" |
9f21e97d NS |
517 | fi |
518 | ;; | |
519 | *) | |
2e6e276d | 520 | onto=$(peel_committish "$onto_name") || |
c7108bf9 | 521 | die "$(eval_gettext "Does not point to a valid commit: \$onto_name")" |
9f21e97d NS |
522 | ;; |
523 | esac | |
a1bf91e0 | 524 | |
0cb06644 | 525 | # If the branch to rebase is given, that is the branch we will rebase |
3a9156ad | 526 | # $branch_name -- branch/commit being rebased, or HEAD (already detached) |
0cb06644 JH |
527 | # $orig_head -- commit object name of tip of the branch before rebasing |
528 | # $head_name -- refs/heads/<that-branch> or "detached HEAD" | |
529 | switch_to= | |
59e6b23a | 530 | case "$#" in |
190f5323 | 531 | 1) |
0cb06644 | 532 | # Is it "rebase other $branchname" or "rebase other $commit"? |
190f5323 TR |
533 | branch_name="$1" |
534 | switch_to="$1" | |
0cb06644 | 535 | |
3a9156ad KS |
536 | # Is it a local branch? |
537 | if git show-ref --verify --quiet -- "refs/heads/$branch_name" && | |
538 | orig_head=$(git rev-parse -q --verify "refs/heads/$branch_name") | |
0cb06644 | 539 | then |
3a9156ad KS |
540 | head_name="refs/heads/$branch_name" |
541 | # If not is it a valid ref (branch or commit)? | |
542 | elif orig_head=$(git rev-parse -q --verify "$branch_name") | |
0cb06644 JH |
543 | then |
544 | head_name="detached HEAD" | |
3a9156ad | 545 | |
0cb06644 | 546 | else |
ca7de7b1 | 547 | die "$(eval_gettext "fatal: no such branch/commit '\$branch_name'")" |
0cb06644 | 548 | fi |
e646c9c8 | 549 | ;; |
f2b6a199 | 550 | 0) |
0cb06644 | 551 | # Do not need to switch branches, we are already on it. |
728fc79c | 552 | if branch_name=$(git symbolic-ref -q HEAD) |
bcf31618 | 553 | then |
0cb06644 | 554 | head_name=$branch_name |
728fc79c | 555 | branch_name=$(expr "z$branch_name" : 'zrefs/heads/\(.*\)') |
bcf31618 | 556 | else |
0cb06644 | 557 | head_name="detached HEAD" |
3a9156ad | 558 | branch_name=HEAD |
bcf31618 | 559 | fi |
ea709800 | 560 | orig_head=$(git rev-parse --verify HEAD) || exit |
e646c9c8 | 561 | ;; |
f2b6a199 MZ |
562 | *) |
563 | die "BUG: unexpected number of arguments left to parse" | |
564 | ;; | |
59e6b23a JH |
565 | esac |
566 | ||
ad8261d2 JK |
567 | if test "$fork_point" = t |
568 | then | |
bb3f4583 JK |
569 | new_upstream=$(git merge-base --fork-point "$upstream_name" \ |
570 | "${switch_to:-HEAD}") | |
ad8261d2 JK |
571 | if test -n "$new_upstream" |
572 | then | |
1e0dacdb | 573 | restrict_revision=$new_upstream |
ad8261d2 JK |
574 | fi |
575 | fi | |
576 | ||
58794775 RR |
577 | if test "$autostash" = true && ! (require_clean_work_tree) 2>/dev/null |
578 | then | |
579 | stash_sha1=$(git stash create "autostash") || | |
580 | die "$(gettext 'Cannot autostash')" | |
581 | ||
582 | mkdir -p "$state_dir" && | |
583 | echo $stash_sha1 >"$state_dir/autostash" && | |
584 | stash_abbrev=$(git rev-parse --short $stash_sha1) && | |
585 | echo "$(eval_gettext 'Created autostash: $stash_abbrev')" && | |
586 | git reset --hard | |
587 | fi | |
588 | ||
c7108bf9 | 589 | require_clean_work_tree "rebase" "$(gettext "Please commit or stash them.")" |
8f9bfb64 | 590 | |
cb82a05d MZ |
591 | # Now we are rebasing commits $upstream..$orig_head (or with --root, |
592 | # everything leading up to $orig_head) on top of $onto | |
e646c9c8 | 593 | |
1308c17b | 594 | # Check if we are already based on $onto with linear history, |
cc1453e1 MZ |
595 | # but this should be done only when upstream and onto are the same |
596 | # and if this is not an interactive rebase. | |
cb82a05d | 597 | mb=$(git merge-base "$onto" "$orig_head") |
cc1453e1 | 598 | if test "$type" != interactive && test "$upstream" = "$onto" && |
1e0dacdb | 599 | test "$mb" = "$onto" && test -z "$restrict_revision" && |
1308c17b | 600 | # linear history? |
cb82a05d | 601 | ! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null |
7f4bd5d8 | 602 | then |
b2f82e05 SR |
603 | if test -z "$force_rebase" |
604 | then | |
605 | # Lazily switch to the target branch if needed... | |
4b03df21 RR |
606 | test -z "$switch_to" || |
607 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" \ | |
22946a94 | 608 | git checkout -q "$switch_to" -- |
08e66700 KS |
609 | if test "$branch_name" = "HEAD" && |
610 | ! git symbolic-ref -q HEAD | |
611 | then | |
612 | say "$(eval_gettext "HEAD is up to date.")" | |
613 | else | |
614 | say "$(eval_gettext "Current branch \$branch_name is up to date.")" | |
615 | fi | |
96e2b99e | 616 | finish_rebase |
b2f82e05 SR |
617 | exit 0 |
618 | else | |
08e66700 KS |
619 | if test "$branch_name" = "HEAD" && |
620 | ! git symbolic-ref -q HEAD | |
621 | then | |
622 | say "$(eval_gettext "HEAD is up to date, rebase forced.")" | |
623 | else | |
624 | say "$(eval_gettext "Current branch \$branch_name is up to date, rebase forced.")" | |
625 | fi | |
b2f82e05 | 626 | fi |
7f4bd5d8 JH |
627 | fi |
628 | ||
8f9bfb64 MZ |
629 | # If a hook exists, give it a chance to interrupt |
630 | run_pre_rebase_hook "$upstream_arg" "$@" | |
631 | ||
a9c3821c TAV |
632 | if test -n "$diffstat" |
633 | then | |
634 | if test -n "$verbose" | |
635 | then | |
c7108bf9 | 636 | echo "$(eval_gettext "Changes from \$mb to \$onto:")" |
a9c3821c TAV |
637 | fi |
638 | # We want color (if set), but no pager | |
639 | GIT_PAGER='' git diff --stat --summary "$mb" "$onto" | |
640 | fi | |
641 | ||
fa99c1e1 | 642 | test "$type" = interactive && run_specific_rebase |
f4107d9c MZ |
643 | |
644 | # Detach HEAD and reset the tree | |
c7108bf9 | 645 | say "$(gettext "First, rewinding head to replay your work on top of it...")" |
4b03df21 RR |
646 | |
647 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" \ | |
648 | git checkout -q "$onto^0" || die "could not detach HEAD" | |
cb82a05d | 649 | git update-ref ORIG_HEAD $orig_head |
f4107d9c | 650 | |
e646c9c8 | 651 | # If the $onto is a proper descendant of the tip of the branch, then |
a75d7b54 | 652 | # we just fast-forwarded. |
cb82a05d | 653 | if test "$mb" = "$orig_head" |
32d99544 | 654 | then |
c7108bf9 | 655 | say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")" |
6fd2f5e6 | 656 | move_to_original_branch |
af2f0ebc | 657 | finish_rebase |
32d99544 LS |
658 | exit 0 |
659 | fi | |
660 | ||
190f5323 TR |
661 | if test -n "$rebase_root" |
662 | then | |
663 | revisions="$onto..$orig_head" | |
664 | else | |
1e0dacdb | 665 | revisions="${restrict_revision-$upstream}..$orig_head" |
190f5323 TR |
666 | fi |
667 | ||
fa99c1e1 | 668 | run_specific_rebase |