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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 |
66335298 | 49 | show-current-patch! show the patch file being applied or merged |
45e2acf3 | 50 | " |
ae2b0f15 | 51 | . git-sh-setup |
f9474132 | 52 | set_reflog_action rebase |
035b5bf6 | 53 | require_work_tree_exists |
533b7039 | 54 | cd_to_toplevel |
4282c4fb | 55 | |
61dfa1bb JH |
56 | LF=' |
57 | ' | |
6bb4e485 MZ |
58 | ok_to_skip_pre_rebase= |
59 | resolvemsg=" | |
5fdacc17 WD |
60 | $(gettext 'Resolve all conflicts manually, mark them as resolved with |
61 | "git add/rm <conflicted_files>", then run "git rebase --continue". | |
62 | You can instead skip this commit: run "git rebase --skip". | |
63 | To abort and get back to the state before "git rebase", run "git rebase --abort".') | |
cc120056 | 64 | " |
6bb4e485 | 65 | unset onto |
1e0dacdb | 66 | unset restrict_revision |
c2145384 | 67 | cmd= |
9765b6ab | 68 | strategy= |
93ce190c | 69 | strategy_opts= |
58634dbf | 70 | do_merge= |
69a636ad MZ |
71 | merge_dir="$GIT_DIR"/rebase-merge |
72 | apply_dir="$GIT_DIR"/rebase-apply | |
b758789c | 73 | verbose= |
9474a029 MZ |
74 | diffstat= |
75 | test "$(git config --bool rebase.stat)" = true && diffstat=t | |
58794775 | 76 | autostash="$(git config --bool rebase.autostash || echo false)" |
ad8261d2 | 77 | fork_point=auto |
67dad687 | 78 | git_am_opt= |
9eaa858e | 79 | git_format_patch_opt= |
190f5323 | 80 | rebase_root= |
b2f82e05 | 81 | force_rebase= |
cb6020bb | 82 | allow_rerere_autoupdate= |
99de0640 MZ |
83 | # Non-empty if a rebase was in progress when 'git rebase' was invoked |
84 | in_progress= | |
85 | # One of {am, merge, interactive} | |
86 | type= | |
87 | # One of {"$GIT_DIR"/rebase-apply, "$GIT_DIR"/rebase-merge} | |
88 | state_dir= | |
34262322 MZ |
89 | # One of {'', continue, skip, abort}, as parsed from command line |
90 | action= | |
cf432ca0 MZ |
91 | preserve_merges= |
92 | autosquash= | |
90e1818f | 93 | keep_empty= |
a6c612b5 | 94 | allow_empty_message= |
cf432ca0 | 95 | test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t |
66948561 JH |
96 | case "$(git config --bool commit.gpgsign)" in |
97 | true) gpg_sign_opt=-S ;; | |
98 | *) gpg_sign_opt= ;; | |
99 | esac | |
58634dbf | 100 | |
fa99c1e1 | 101 | read_basic_state () { |
dc8ca912 RR |
102 | test -f "$state_dir/head-name" && |
103 | test -f "$state_dir/onto" && | |
02ac45fa MZ |
104 | head_name=$(cat "$state_dir"/head-name) && |
105 | onto=$(cat "$state_dir"/onto) && | |
84df4560 MZ |
106 | # We always write to orig-head, but interactive rebase used to write to |
107 | # head. Fall back to reading from head to cover for the case that the | |
108 | # user upgraded git with an ongoing interactive rebase. | |
109 | if test -f "$state_dir"/orig-head | |
2959c283 | 110 | then |
2959c283 | 111 | orig_head=$(cat "$state_dir"/orig-head) |
84df4560 MZ |
112 | else |
113 | orig_head=$(cat "$state_dir"/head) | |
2959c283 | 114 | fi && |
7b37a7c6 MZ |
115 | GIT_QUIET=$(cat "$state_dir"/quiet) && |
116 | test -f "$state_dir"/verbose && verbose=t | |
80ff4795 MZ |
117 | test -f "$state_dir"/strategy && strategy="$(cat "$state_dir"/strategy)" |
118 | test -f "$state_dir"/strategy_opts && | |
119 | strategy_opts="$(cat "$state_dir"/strategy_opts)" | |
b3e4847e MZ |
120 | test -f "$state_dir"/allow_rerere_autoupdate && |
121 | allow_rerere_autoupdate="$(cat "$state_dir"/allow_rerere_autoupdate)" | |
3ee5e540 NV |
122 | test -f "$state_dir"/gpg_sign_opt && |
123 | gpg_sign_opt="$(cat "$state_dir"/gpg_sign_opt)" | |
02ac45fa MZ |
124 | } |
125 | ||
84df4560 MZ |
126 | write_basic_state () { |
127 | echo "$head_name" > "$state_dir"/head-name && | |
128 | echo "$onto" > "$state_dir"/onto && | |
129 | echo "$orig_head" > "$state_dir"/orig-head && | |
7b37a7c6 MZ |
130 | echo "$GIT_QUIET" > "$state_dir"/quiet && |
131 | test t = "$verbose" && : > "$state_dir"/verbose | |
80ff4795 MZ |
132 | test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy |
133 | test -n "$strategy_opts" && echo "$strategy_opts" > \ | |
134 | "$state_dir"/strategy_opts | |
b3e4847e MZ |
135 | test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \ |
136 | "$state_dir"/allow_rerere_autoupdate | |
3ee5e540 | 137 | test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt |
84df4560 MZ |
138 | } |
139 | ||
4974c2ca MZ |
140 | output () { |
141 | case "$verbose" in | |
142 | '') | |
143 | output=$("$@" 2>&1 ) | |
144 | status=$? | |
145 | test $status != 0 && printf "%s\n" "$output" | |
146 | return $status | |
147 | ;; | |
148 | *) | |
149 | "$@" | |
150 | ;; | |
151 | esac | |
152 | } | |
153 | ||
6fd2f5e6 | 154 | move_to_original_branch () { |
6fd2f5e6 JS |
155 | case "$head_name" in |
156 | refs/*) | |
157 | message="rebase finished: $head_name onto $onto" | |
158 | git update-ref -m "$message" \ | |
159 | $head_name $(git rev-parse HEAD) $orig_head && | |
53f2ffa8 JK |
160 | git symbolic-ref \ |
161 | -m "rebase finished: returning to $head_name" \ | |
162 | HEAD $head_name || | |
24a6df48 | 163 | die "$(eval_gettext "Could not move back to \$head_name")" |
6fd2f5e6 JS |
164 | ;; |
165 | esac | |
166 | } | |
167 | ||
e4244eb3 | 168 | apply_autostash () { |
58794775 RR |
169 | if test -f "$state_dir/autostash" |
170 | then | |
171 | stash_sha1=$(cat "$state_dir/autostash") | |
eadf1c8f | 172 | if git stash apply $stash_sha1 >/dev/null 2>&1 |
58794775 | 173 | then |
cdb866b3 | 174 | echo "$(gettext 'Applied autostash.')" >&2 |
58794775 | 175 | else |
20351bb0 RR |
176 | git stash store -m "autostash" -q $stash_sha1 || |
177 | die "$(eval_gettext "Cannot store \$stash_sha1")" | |
58794775 RR |
178 | gettext 'Applying autostash resulted in conflicts. |
179 | Your changes are safe in the stash. | |
ac1998de | 180 | You can run "git stash pop" or "git stash drop" at any time. |
cdb866b3 | 181 | ' >&2 |
58794775 RR |
182 | fi |
183 | fi | |
e4244eb3 RR |
184 | } |
185 | ||
186 | finish_rebase () { | |
fbd7a232 | 187 | rm -f "$(git rev-parse --git-path REBASE_HEAD)" |
e4244eb3 | 188 | apply_autostash && |
8c24f5b0 | 189 | { git gc --auto || true; } && |
58794775 RR |
190 | rm -rf "$state_dir" |
191 | } | |
192 | ||
8cd65967 | 193 | run_specific_rebase () { |
f8cca019 AE |
194 | if [ "$interactive_rebase" = implied ]; then |
195 | GIT_EDITOR=: | |
196 | export GIT_EDITOR | |
8a6dae10 | 197 | autosquash= |
f8cca019 | 198 | fi |
46df82d5 | 199 | . git-rebase--$type |
950b487c | 200 | git_rebase__$type${preserve_merges:+__preserve_merges} |
f5f758a5 RR |
201 | ret=$? |
202 | if test $ret -eq 0 | |
203 | then | |
58794775 | 204 | finish_rebase |
e4244eb3 RR |
205 | elif test $ret -eq 2 # special exit status for rebase -i |
206 | then | |
207 | apply_autostash && | |
208 | rm -rf "$state_dir" && | |
209 | die "Nothing to do" | |
f5f758a5 RR |
210 | fi |
211 | exit $ret | |
1b1dce4b JS |
212 | } |
213 | ||
d70b4a8f | 214 | run_pre_rebase_hook () { |
6bb4e485 | 215 | if test -z "$ok_to_skip_pre_rebase" && |
b849b954 | 216 | test -x "$(git rev-parse --git-path hooks/pre-rebase)" |
d70b4a8f | 217 | then |
b849b954 | 218 | "$(git rev-parse --git-path hooks/pre-rebase)" ${1+"$@"} || |
c7108bf9 | 219 | die "$(gettext "The pre-rebase hook refused to rebase.")" |
d70b4a8f NS |
220 | fi |
221 | } | |
222 | ||
69a636ad | 223 | test -f "$apply_dir"/applying && |
82cb775c | 224 | die "$(gettext "It looks like 'git am' is in progress. Cannot rebase.")" |
9b752a6e | 225 | |
99de0640 MZ |
226 | if test -d "$apply_dir" |
227 | then | |
228 | type=am | |
229 | state_dir="$apply_dir" | |
230 | elif test -d "$merge_dir" | |
231 | then | |
232 | if test -f "$merge_dir"/interactive | |
233 | then | |
234 | type=interactive | |
235 | interactive_rebase=explicit | |
236 | else | |
237 | type=merge | |
238 | fi | |
239 | state_dir="$merge_dir" | |
240 | fi | |
241 | test -n "$type" && in_progress=t | |
242 | ||
95135b06 | 243 | total_argc=$# |
822f7c73 | 244 | while test $# != 0 |
e646c9c8 JH |
245 | do |
246 | case "$1" in | |
c4427656 | 247 | --no-verify) |
6bb4e485 | 248 | ok_to_skip_pre_rebase=yes |
c4427656 | 249 | ;; |
7baf9c4b | 250 | --verify) |
6bb4e485 | 251 | ok_to_skip_pre_rebase= |
7baf9c4b | 252 | ;; |
66335298 | 253 | --continue|--skip|--abort|--quit|--edit-todo|--show-current-patch) |
45e2acf3 | 254 | test $total_argc -eq 2 || usage |
34262322 | 255 | action=${1##--} |
031321c6 | 256 | ;; |
b6e9e73e NV |
257 | --onto=*) |
258 | onto="${1#--onto=}" | |
e646c9c8 | 259 | ;; |
b6e9e73e NV |
260 | --exec=*) |
261 | cmd="${cmd}exec ${1#--exec=}${LF}" | |
78ec2400 | 262 | test -z "$interactive_rebase" && interactive_rebase=implied |
c2145384 | 263 | ;; |
b6e9e73e | 264 | --interactive) |
cf432ca0 MZ |
265 | interactive_rebase=explicit |
266 | ;; | |
b6e9e73e | 267 | --keep-empty) |
90e1818f NH |
268 | keep_empty=yes |
269 | ;; | |
a6c612b5 GS |
270 | --allow-empty-message) |
271 | allow_empty_message=--allow-empty-message | |
272 | ;; | |
b6e9e73e | 273 | --preserve-merges) |
cf432ca0 MZ |
274 | preserve_merges=t |
275 | test -z "$interactive_rebase" && interactive_rebase=implied | |
276 | ;; | |
277 | --autosquash) | |
278 | autosquash=t | |
279 | ;; | |
280 | --no-autosquash) | |
281 | autosquash= | |
282 | ;; | |
ad8261d2 JK |
283 | --fork-point) |
284 | fork_point=t | |
285 | ;; | |
286 | --no-fork-point) | |
287 | fork_point= | |
288 | ;; | |
b6e9e73e | 289 | --merge) |
58634dbf EW |
290 | do_merge=t |
291 | ;; | |
b6e9e73e NV |
292 | --strategy-option=*) |
293 | strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--${1#--strategy-option=}")" | |
93ce190c | 294 | do_merge=t |
9765b6ab | 295 | test -z "$strategy" && strategy=recursive |
93ce190c | 296 | ;; |
b6e9e73e NV |
297 | --strategy=*) |
298 | strategy="${1#--strategy=}" | |
58634dbf EW |
299 | do_merge=t |
300 | ;; | |
b6e9e73e | 301 | --no-stat) |
a9c3821c TAV |
302 | diffstat= |
303 | ;; | |
304 | --stat) | |
305 | diffstat=t | |
306 | ;; | |
58794775 RR |
307 | --autostash) |
308 | autostash=true | |
309 | ;; | |
619e3604 JK |
310 | --no-autostash) |
311 | autostash=false | |
312 | ;; | |
b6e9e73e | 313 | --verbose) |
b758789c | 314 | verbose=t |
a9c3821c | 315 | diffstat=t |
0e987a12 SB |
316 | GIT_QUIET= |
317 | ;; | |
b6e9e73e | 318 | --quiet) |
0e987a12 SB |
319 | GIT_QUIET=t |
320 | git_am_opt="$git_am_opt -q" | |
321 | verbose= | |
322 | diffstat= | |
b758789c | 323 | ;; |
b6e9e73e NV |
324 | --whitespace=*) |
325 | git_am_opt="$git_am_opt --whitespace=${1#--whitespace=}" | |
326 | case "${1#--whitespace=}" in | |
45e2acf3 | 327 | fix|strip) |
b2f82e05 SR |
328 | force_rebase=t |
329 | ;; | |
330 | esac | |
059f446d | 331 | ;; |
86c91f91 GB |
332 | --ignore-whitespace) |
333 | git_am_opt="$git_am_opt $1" | |
334 | ;; | |
9f79524a | 335 | --committer-date-is-author-date|--ignore-date|--signoff|--no-signoff) |
570ccad3 MB |
336 | git_am_opt="$git_am_opt $1" |
337 | force_rebase=t | |
338 | ;; | |
b6e9e73e NV |
339 | -C*) |
340 | git_am_opt="$git_am_opt $1" | |
67dad687 | 341 | ;; |
190f5323 TR |
342 | --root) |
343 | rebase_root=t | |
344 | ;; | |
b6e9e73e | 345 | --force-rebase|--no-ff) |
b2f82e05 SR |
346 | force_rebase=t |
347 | ;; | |
cb6020bb JH |
348 | --rerere-autoupdate|--no-rerere-autoupdate) |
349 | allow_rerere_autoupdate="$1" | |
350 | ;; | |
3ee5e540 NV |
351 | --gpg-sign) |
352 | gpg_sign_opt=-S | |
353 | ;; | |
354 | --gpg-sign=*) | |
355 | gpg_sign_opt="-S${1#--gpg-sign=}" | |
356 | ;; | |
45e2acf3 MZ |
357 | --) |
358 | shift | |
e646c9c8 JH |
359 | break |
360 | ;; | |
697bc885 BC |
361 | *) |
362 | usage | |
363 | ;; | |
e646c9c8 JH |
364 | esac |
365 | shift | |
366 | done | |
51b2ead0 | 367 | test $# -gt 2 && usage |
2db8aaec | 368 | |
cf432ca0 MZ |
369 | if test -n "$action" |
370 | then | |
c7108bf9 | 371 | test -z "$in_progress" && die "$(gettext "No rebase in progress?")" |
2959c283 MZ |
372 | # Only interactive rebase uses detailed reflog messages |
373 | if test "$type" = interactive && test "$GIT_REFLOG_ACTION" = rebase | |
374 | then | |
375 | GIT_REFLOG_ACTION="rebase -i ($action)" | |
376 | export GIT_REFLOG_ACTION | |
377 | fi | |
cf432ca0 | 378 | fi |
34262322 | 379 | |
eb9a7cb4 AW |
380 | if test "$action" = "edit-todo" && test "$type" != "interactive" |
381 | then | |
382 | die "$(gettext "The --edit-todo action can only be used during interactive rebase.")" | |
383 | fi | |
384 | ||
34262322 MZ |
385 | case "$action" in |
386 | continue) | |
2959c283 MZ |
387 | # Sanity check |
388 | git rev-parse --verify HEAD >/dev/null || | |
c7108bf9 | 389 | die "$(gettext "Cannot read HEAD")" |
34262322 MZ |
390 | git update-index --ignore-submodules --refresh && |
391 | git diff-files --quiet --ignore-submodules || { | |
c7108bf9 JX |
392 | echo "$(gettext "You must edit all merge conflicts and then |
393 | mark them as resolved using git add")" | |
34262322 MZ |
394 | exit 1 |
395 | } | |
fa99c1e1 MZ |
396 | read_basic_state |
397 | run_specific_rebase | |
34262322 MZ |
398 | ;; |
399 | skip) | |
4974c2ca | 400 | output git reset --hard HEAD || exit $? |
fa99c1e1 MZ |
401 | read_basic_state |
402 | run_specific_rebase | |
34262322 MZ |
403 | ;; |
404 | abort) | |
405 | git rerere clear | |
fa99c1e1 | 406 | read_basic_state |
34262322 MZ |
407 | case "$head_name" in |
408 | refs/*) | |
ea69619c | 409 | git symbolic-ref -m "rebase: aborting" HEAD $head_name || |
c7108bf9 | 410 | die "$(eval_gettext "Could not move back to \$head_name")" |
34262322 MZ |
411 | ;; |
412 | esac | |
4974c2ca | 413 | output git reset --hard $orig_head |
58794775 | 414 | finish_rebase |
34262322 MZ |
415 | exit |
416 | ;; | |
9512177b NTND |
417 | quit) |
418 | exec rm -rf "$state_dir" | |
419 | ;; | |
eb9a7cb4 AW |
420 | edit-todo) |
421 | run_specific_rebase | |
422 | ;; | |
66335298 NTND |
423 | show-current-patch) |
424 | run_specific_rebase | |
425 | die "BUG: run_specific_rebase is not supposed to return here" | |
426 | ;; | |
34262322 MZ |
427 | esac |
428 | ||
99de0640 MZ |
429 | # Make sure no rebase is in progress |
430 | if test -n "$in_progress" | |
7f4bd5d8 | 431 | then |
c7108bf9 JX |
432 | state_dir_base=${state_dir##*/} |
433 | cmd_live_rebase="git rebase (--continue | --abort | --skip)" | |
434 | cmd_clear_stale_rebase="rm -fr \"$state_dir\"" | |
435 | die " | |
436 | $(eval_gettext 'It seems that there is already a $state_dir_base directory, and | |
e39beac6 | 437 | I wonder if you are in the middle of another rebase. If that is the |
99de0640 | 438 | case, please try |
c7108bf9 | 439 | $cmd_live_rebase |
99de0640 | 440 | If that is not the case, please |
c7108bf9 | 441 | $cmd_clear_stale_rebase |
9b752a6e | 442 | and run me again. I am stopping in case you still have something |
c7108bf9 | 443 | valuable there.')" |
7f4bd5d8 JH |
444 | fi |
445 | ||
df5df20c CW |
446 | if test -n "$rebase_root" && test -z "$onto" |
447 | then | |
448 | test -z "$interactive_rebase" && interactive_rebase=implied | |
449 | fi | |
450 | ||
cf432ca0 MZ |
451 | if test -n "$interactive_rebase" |
452 | then | |
453 | type=interactive | |
454 | state_dir="$merge_dir" | |
455 | elif test -n "$do_merge" | |
456 | then | |
457 | type=merge | |
458 | state_dir="$merge_dir" | |
459 | else | |
460 | type=am | |
461 | state_dir="$apply_dir" | |
462 | fi | |
463 | ||
9eaa858e KW |
464 | if test -t 2 && test -z "$GIT_QUIET" |
465 | then | |
466 | git_format_patch_opt="$git_format_patch_opt --progress" | |
467 | fi | |
468 | ||
190f5323 TR |
469 | if test -z "$rebase_root" |
470 | then | |
15a147e6 MZ |
471 | case "$#" in |
472 | 0) | |
473 | if ! upstream_name=$(git rev-parse --symbolic-full-name \ | |
474 | --verify -q @{upstream} 2>/dev/null) | |
475 | then | |
476 | . git-parse-remote | |
477 | error_on_missing_default_upstream "rebase" "rebase" \ | |
c36d8eee | 478 | "against" "git rebase $(gettext '<branch>')" |
15a147e6 | 479 | fi |
ad8261d2 JK |
480 | |
481 | test "$fork_point" = auto && fork_point=t | |
15a147e6 MZ |
482 | ;; |
483 | *) upstream_name="$1" | |
4f407407 BG |
484 | if test "$upstream_name" = "-" |
485 | then | |
486 | upstream_name="@{-1}" | |
487 | fi | |
15a147e6 MZ |
488 | shift |
489 | ;; | |
490 | esac | |
2e6e276d | 491 | upstream=$(peel_committish "${upstream_name}") || |
ca7de7b1 | 492 | die "$(eval_gettext "invalid upstream '\$upstream_name'")" |
190f5323 TR |
493 | upstream_arg="$upstream_name" |
494 | else | |
df5df20c CW |
495 | if test -z "$onto" |
496 | then | |
728fc79c EP |
497 | empty_tree=$(git hash-object -t tree /dev/null) |
498 | onto=$(git commit-tree $empty_tree </dev/null) | |
df5df20c CW |
499 | squash_onto="$onto" |
500 | fi | |
190f5323 TR |
501 | unset upstream_name |
502 | unset upstream | |
f2b6a199 | 503 | test $# -gt 1 && usage |
46df82d5 | 504 | upstream_arg=--root |
190f5323 | 505 | fi |
32d99544 | 506 | |
a1bf91e0 | 507 | # Make sure the branch to rebase onto is valid. |
6bb4e485 | 508 | onto_name=${onto-"$upstream_name"} |
9f21e97d NS |
509 | case "$onto_name" in |
510 | *...*) | |
511 | if left=${onto_name%...*} right=${onto_name#*...} && | |
512 | onto=$(git merge-base --all ${left:-HEAD} ${right:-HEAD}) | |
513 | then | |
514 | case "$onto" in | |
515 | ?*"$LF"?*) | |
c7108bf9 | 516 | die "$(eval_gettext "\$onto_name: there are more than one merge bases")" |
9f21e97d NS |
517 | ;; |
518 | '') | |
c7108bf9 | 519 | die "$(eval_gettext "\$onto_name: there is no merge base")" |
9f21e97d NS |
520 | ;; |
521 | esac | |
522 | else | |
c7108bf9 | 523 | die "$(eval_gettext "\$onto_name: there is no merge base")" |
9f21e97d NS |
524 | fi |
525 | ;; | |
526 | *) | |
2e6e276d | 527 | onto=$(peel_committish "$onto_name") || |
c7108bf9 | 528 | die "$(eval_gettext "Does not point to a valid commit: \$onto_name")" |
9f21e97d NS |
529 | ;; |
530 | esac | |
a1bf91e0 | 531 | |
0cb06644 | 532 | # If the branch to rebase is given, that is the branch we will rebase |
3a9156ad | 533 | # $branch_name -- branch/commit being rebased, or HEAD (already detached) |
0cb06644 JH |
534 | # $orig_head -- commit object name of tip of the branch before rebasing |
535 | # $head_name -- refs/heads/<that-branch> or "detached HEAD" | |
536 | switch_to= | |
59e6b23a | 537 | case "$#" in |
190f5323 | 538 | 1) |
0cb06644 | 539 | # Is it "rebase other $branchname" or "rebase other $commit"? |
190f5323 TR |
540 | branch_name="$1" |
541 | switch_to="$1" | |
0cb06644 | 542 | |
3a9156ad KS |
543 | # Is it a local branch? |
544 | if git show-ref --verify --quiet -- "refs/heads/$branch_name" && | |
545 | orig_head=$(git rev-parse -q --verify "refs/heads/$branch_name") | |
0cb06644 | 546 | then |
3a9156ad KS |
547 | head_name="refs/heads/$branch_name" |
548 | # If not is it a valid ref (branch or commit)? | |
549 | elif orig_head=$(git rev-parse -q --verify "$branch_name") | |
0cb06644 JH |
550 | then |
551 | head_name="detached HEAD" | |
3a9156ad | 552 | |
0cb06644 | 553 | else |
ca7de7b1 | 554 | die "$(eval_gettext "fatal: no such branch/commit '\$branch_name'")" |
0cb06644 | 555 | fi |
e646c9c8 | 556 | ;; |
f2b6a199 | 557 | 0) |
0cb06644 | 558 | # Do not need to switch branches, we are already on it. |
728fc79c | 559 | if branch_name=$(git symbolic-ref -q HEAD) |
bcf31618 | 560 | then |
0cb06644 | 561 | head_name=$branch_name |
728fc79c | 562 | branch_name=$(expr "z$branch_name" : 'zrefs/heads/\(.*\)') |
bcf31618 | 563 | else |
0cb06644 | 564 | head_name="detached HEAD" |
3a9156ad | 565 | branch_name=HEAD |
bcf31618 | 566 | fi |
ea709800 | 567 | orig_head=$(git rev-parse --verify HEAD) || exit |
e646c9c8 | 568 | ;; |
f2b6a199 MZ |
569 | *) |
570 | die "BUG: unexpected number of arguments left to parse" | |
571 | ;; | |
59e6b23a JH |
572 | esac |
573 | ||
ad8261d2 JK |
574 | if test "$fork_point" = t |
575 | then | |
bb3f4583 JK |
576 | new_upstream=$(git merge-base --fork-point "$upstream_name" \ |
577 | "${switch_to:-HEAD}") | |
ad8261d2 JK |
578 | if test -n "$new_upstream" |
579 | then | |
1e0dacdb | 580 | restrict_revision=$new_upstream |
ad8261d2 JK |
581 | fi |
582 | fi | |
583 | ||
58794775 RR |
584 | if test "$autostash" = true && ! (require_clean_work_tree) 2>/dev/null |
585 | then | |
586 | stash_sha1=$(git stash create "autostash") || | |
587 | die "$(gettext 'Cannot autostash')" | |
588 | ||
589 | mkdir -p "$state_dir" && | |
590 | echo $stash_sha1 >"$state_dir/autostash" && | |
591 | stash_abbrev=$(git rev-parse --short $stash_sha1) && | |
592 | echo "$(eval_gettext 'Created autostash: $stash_abbrev')" && | |
593 | git reset --hard | |
594 | fi | |
595 | ||
c7108bf9 | 596 | require_clean_work_tree "rebase" "$(gettext "Please commit or stash them.")" |
8f9bfb64 | 597 | |
cb82a05d MZ |
598 | # Now we are rebasing commits $upstream..$orig_head (or with --root, |
599 | # everything leading up to $orig_head) on top of $onto | |
e646c9c8 | 600 | |
1308c17b | 601 | # Check if we are already based on $onto with linear history, |
cc1453e1 MZ |
602 | # but this should be done only when upstream and onto are the same |
603 | # and if this is not an interactive rebase. | |
cb82a05d | 604 | mb=$(git merge-base "$onto" "$orig_head") |
cc1453e1 | 605 | if test "$type" != interactive && test "$upstream" = "$onto" && |
1e0dacdb | 606 | test "$mb" = "$onto" && test -z "$restrict_revision" && |
1308c17b | 607 | # linear history? |
cb82a05d | 608 | ! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null |
7f4bd5d8 | 609 | then |
b2f82e05 SR |
610 | if test -z "$force_rebase" |
611 | then | |
612 | # Lazily switch to the target branch if needed... | |
4b03df21 RR |
613 | test -z "$switch_to" || |
614 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" \ | |
22946a94 | 615 | git checkout -q "$switch_to" -- |
08e66700 KS |
616 | if test "$branch_name" = "HEAD" && |
617 | ! git symbolic-ref -q HEAD | |
618 | then | |
619 | say "$(eval_gettext "HEAD is up to date.")" | |
620 | else | |
621 | say "$(eval_gettext "Current branch \$branch_name is up to date.")" | |
622 | fi | |
96e2b99e | 623 | finish_rebase |
b2f82e05 SR |
624 | exit 0 |
625 | else | |
08e66700 KS |
626 | if test "$branch_name" = "HEAD" && |
627 | ! git symbolic-ref -q HEAD | |
628 | then | |
629 | say "$(eval_gettext "HEAD is up to date, rebase forced.")" | |
630 | else | |
631 | say "$(eval_gettext "Current branch \$branch_name is up to date, rebase forced.")" | |
632 | fi | |
b2f82e05 | 633 | fi |
7f4bd5d8 JH |
634 | fi |
635 | ||
8f9bfb64 MZ |
636 | # If a hook exists, give it a chance to interrupt |
637 | run_pre_rebase_hook "$upstream_arg" "$@" | |
638 | ||
a9c3821c TAV |
639 | if test -n "$diffstat" |
640 | then | |
641 | if test -n "$verbose" | |
642 | then | |
c7108bf9 | 643 | echo "$(eval_gettext "Changes from \$mb to \$onto:")" |
a9c3821c TAV |
644 | fi |
645 | # We want color (if set), but no pager | |
646 | GIT_PAGER='' git diff --stat --summary "$mb" "$onto" | |
647 | fi | |
648 | ||
fa99c1e1 | 649 | test "$type" = interactive && run_specific_rebase |
f4107d9c MZ |
650 | |
651 | # Detach HEAD and reset the tree | |
c7108bf9 | 652 | say "$(gettext "First, rewinding head to replay your work on top of it...")" |
4b03df21 RR |
653 | |
654 | GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" \ | |
655 | git checkout -q "$onto^0" || die "could not detach HEAD" | |
cb82a05d | 656 | git update-ref ORIG_HEAD $orig_head |
f4107d9c | 657 | |
e646c9c8 | 658 | # If the $onto is a proper descendant of the tip of the branch, then |
a75d7b54 | 659 | # we just fast-forwarded. |
cb82a05d | 660 | if test "$mb" = "$orig_head" |
32d99544 | 661 | then |
c7108bf9 | 662 | say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")" |
6fd2f5e6 | 663 | move_to_original_branch |
af2f0ebc | 664 | finish_rebase |
32d99544 LS |
665 | exit 0 |
666 | fi | |
667 | ||
190f5323 TR |
668 | if test -n "$rebase_root" |
669 | then | |
670 | revisions="$onto..$orig_head" | |
671 | else | |
1e0dacdb | 672 | revisions="${restrict_revision-$upstream}..$orig_head" |
190f5323 TR |
673 | fi |
674 | ||
fa99c1e1 | 675 | run_specific_rebase |