git.oblomov.eu Git - git/blob - git-rebase.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano.
   4 #
   5
   6 SUBDIRECTORY_OK=Yes
   7 OPTIONS_KEEPDASHDASH=
   8 OPTIONS_STUCKLONG=t
   9 OPTIONS_SPEC="\
  10 git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] [<upstream>] [<branch>]
  11 git rebase [-i] [options] [--exec <cmd>] [--onto <newbase>] --root [<branch>]
  12 git rebase --continue | --abort | --skip | --edit-todo
  13 --
  14  Available options are
  15 v,verbose!         display a diffstat of what changed upstream
  16 q,quiet!           be quiet. implies --no-stat
  17 autostash          automatically stash/stash pop before and after
  18 fork-point         use 'merge-base --fork-point' to refine upstream
  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
  25 x,exec=!           add exec lines after each commit of the editable list
  26 k,keep-empty       preserve empty commits during rebase
  27 allow-empty-message allow rebasing commits with empty messages
  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'
  38 signoff            passed to 'git am'
  39 whitespace=!       passed to 'git apply'
  40 ignore-whitespace! passed to 'git apply'
  41 C=!                passed to 'git apply'
  42 S,gpg-sign?        GPG-sign commits
  43  Actions:
  44 continue!          continue
  45 abort!             abort and check out the original branch
  46 skip!              skip current patch and continue
  47 edit-todo!         edit the todo list during an interactive rebase
  48 quit!              abort but keep HEAD where it is
  49 show-current-patch! show the patch file being applied or merged
  50 "
  51 . git-sh-setup
  52 set_reflog_action rebase
  53 require_work_tree_exists
  54 cd_to_toplevel
  55
  56 LF='
  57 '
  58 ok_to_skip_pre_rebase=
  59 resolvemsg="
  60 $(gettext 'Resolve all conflicts manually, mark them as resolved with
  61 "git add/rm <conflicted_files>", then run "git rebase --continue".
  62 You can instead skip this commit: run "git rebase --skip".
  63 To abort and get back to the state before "git rebase", run "git rebase --abort".')
  64 "
  65 unset onto
  66 unset restrict_revision
  67 cmd=
  68 strategy=
  69 strategy_opts=
  70 do_merge=
  71 merge_dir="$GIT_DIR"/rebase-merge
  72 apply_dir="$GIT_DIR"/rebase-apply
  73 verbose=
  74 diffstat=
  75 test "$(git config --bool rebase.stat)" = true && diffstat=t
  76 autostash="$(git config --bool rebase.autostash || echo false)"
  77 fork_point=auto
  78 git_am_opt=
  79 git_format_patch_opt=
  80 rebase_root=
  81 force_rebase=
  82 allow_rerere_autoupdate=
  83 # Non-empty if a rebase was in progress when 'git rebase' was invoked
  84 in_progress=
  85 # One of {am, merge, interactive}
  86 type=
  87 # One of {"$GIT_DIR"/rebase-apply, "$GIT_DIR"/rebase-merge}
  88 state_dir=
  89 # One of {'', continue, skip, abort}, as parsed from command line
  90 action=
  91 preserve_merges=
  92 autosquash=
  93 keep_empty=
  94 allow_empty_message=
  95 test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t
  96 case "$(git config --bool commit.gpgsign)" in
  97 true)   gpg_sign_opt=-S ;;
  98 *)      gpg_sign_opt= ;;
  99 esac
 100
 101 read_basic_state () {
 102         test -f "$state_dir/head-name" &&
 103         test -f "$state_dir/onto" &&
 104         head_name=$(cat "$state_dir"/head-name) &&
 105         onto=$(cat "$state_dir"/onto) &&
 106         # We always write to orig-head, but interactive rebase used to write to
 107         # head. Fall back to reading from head to cover for the case that the
 108         # user upgraded git with an ongoing interactive rebase.
 109         if test -f "$state_dir"/orig-head
 110         then
 111                 orig_head=$(cat "$state_dir"/orig-head)
 112         else
 113                 orig_head=$(cat "$state_dir"/head)
 114         fi &&
 115         GIT_QUIET=$(cat "$state_dir"/quiet) &&
 116         test -f "$state_dir"/verbose && verbose=t
 117         test -f "$state_dir"/strategy && strategy="$(cat "$state_dir"/strategy)"
 118         test -f "$state_dir"/strategy_opts &&
 119                 strategy_opts="$(cat "$state_dir"/strategy_opts)"
 120         test -f "$state_dir"/allow_rerere_autoupdate &&
 121                 allow_rerere_autoupdate="$(cat "$state_dir"/allow_rerere_autoupdate)"
 122         test -f "$state_dir"/gpg_sign_opt &&
 123                 gpg_sign_opt="$(cat "$state_dir"/gpg_sign_opt)"
 124 }
 125
 126 write_basic_state () {
 127         echo "$head_name" > "$state_dir"/head-name &&
 128         echo "$onto" > "$state_dir"/onto &&
 129         echo "$orig_head" > "$state_dir"/orig-head &&
 130         echo "$GIT_QUIET" > "$state_dir"/quiet &&
 131         test t = "$verbose" && : > "$state_dir"/verbose
 132         test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy
 133         test -n "$strategy_opts" && echo "$strategy_opts" > \
 134                 "$state_dir"/strategy_opts
 135         test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \
 136                 "$state_dir"/allow_rerere_autoupdate
 137         test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt
 138 }
 139
 140 output () {
 141         case "$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
 154 move_to_original_branch () {
 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 &&
 160                 git symbolic-ref \
 161                         -m "rebase finished: returning to $head_name" \
 162                         HEAD $head_name ||
 163                 die "$(eval_gettext "Could not move back to \$head_name")"
 164                 ;;
 165         esac
 166 }
 167
 168 apply_autostash () {
 169         if test -f "$state_dir/autostash"
 170         then
 171                 stash_sha1=$(cat "$state_dir/autostash")
 172                 if git stash apply $stash_sha1 >/dev/null 2>&1
 173                 then
 174                         echo "$(gettext 'Applied autostash.')" >&2
 175                 else
 176                         git stash store -m "autostash" -q $stash_sha1 ||
 177                         die "$(eval_gettext "Cannot store \$stash_sha1")"
 178                         gettext 'Applying autostash resulted in conflicts.
 179 Your changes are safe in the stash.
 180 You can run "git stash pop" or "git stash drop" at any time.
 181 ' >&2
 182                 fi
 183         fi
 184 }
 185
 186 finish_rebase () {
 187         rm -f "$(git rev-parse --git-path REBASE_HEAD)"
 188         apply_autostash &&
 189         { git gc --auto || true; } &&
 190         rm -rf "$state_dir"
 191 }
 192
 193 run_specific_rebase () {
 194         if [ "$interactive_rebase" = implied ]; then
 195                 GIT_EDITOR=:
 196                 export GIT_EDITOR
 197                 autosquash=
 198         fi
 199         . git-rebase--$type
 200         git_rebase__$type${preserve_merges:+__preserve_merges}
 201         ret=$?
 202         if test $ret -eq 0
 203         then
 204                 finish_rebase
 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"
 210         fi
 211         exit $ret
 212 }
 213
 214 run_pre_rebase_hook () {
 215         if test -z "$ok_to_skip_pre_rebase" &&
 216            test -x "$(git rev-parse --git-path hooks/pre-rebase)"
 217         then
 218                 "$(git rev-parse --git-path hooks/pre-rebase)" ${1+"$@"} ||
 219                 die "$(gettext "The pre-rebase hook refused to rebase.")"
 220         fi
 221 }
 222
 223 test -f "$apply_dir"/applying &&
 224         die "$(gettext "It looks like 'git am' is in progress. Cannot rebase.")"
 225
 226 if test -d "$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 "$type" && in_progress=t
 242
 243 total_argc=$#
 244 while test $# != 0
 245 do
 246         case "$1" in
 247         --no-verify)
 248                 ok_to_skip_pre_rebase=yes
 249                 ;;
 250         --verify)
 251                 ok_to_skip_pre_rebase=
 252                 ;;
 253         --continue|--skip|--abort|--quit|--edit-todo|--show-current-patch)
 254                 test $total_argc -eq 2 || usage
 255                 action=${1##--}
 256                 ;;
 257         --onto=*)
 258                 onto="${1#--onto=}"
 259                 ;;
 260         --exec=*)
 261                 cmd="${cmd}exec ${1#--exec=}${LF}"
 262                 test -z "$interactive_rebase" && interactive_rebase=implied
 263                 ;;
 264         --interactive)
 265                 interactive_rebase=explicit
 266                 ;;
 267         --keep-empty)
 268                 keep_empty=yes
 269                 ;;
 270         --allow-empty-message)
 271                 allow_empty_message=--allow-empty-message
 272                 ;;
 273         --preserve-merges)
 274                 preserve_merges=t
 275                 test -z "$interactive_rebase" && interactive_rebase=implied
 276                 ;;
 277         --autosquash)
 278                 autosquash=t
 279                 ;;
 280         --no-autosquash)
 281                 autosquash=
 282                 ;;
 283         --fork-point)
 284                 fork_point=t
 285                 ;;
 286         --no-fork-point)
 287                 fork_point=
 288                 ;;
 289         --merge)
 290                 do_merge=t
 291                 ;;
 292         --strategy-option=*)
 293                 strategy_opts="$strategy_opts $(git rev-parse --sq-quote "--${1#--strategy-option=}")"
 294                 do_merge=t
 295                 test -z "$strategy" && strategy=recursive
 296                 ;;
 297         --strategy=*)
 298                 strategy="${1#--strategy=}"
 299                 do_merge=t
 300                 ;;
 301         --no-stat)
 302                 diffstat=
 303                 ;;
 304         --stat)
 305                 diffstat=t
 306                 ;;
 307         --autostash)
 308                 autostash=true
 309                 ;;
 310         --no-autostash)
 311                 autostash=false
 312                 ;;
 313         --verbose)
 314                 verbose=t
 315                 diffstat=t
 316                 GIT_QUIET=
 317                 ;;
 318         --quiet)
 319                 GIT_QUIET=t
 320                 git_am_opt="$git_am_opt -q"
 321                 verbose=
 322                 diffstat=
 323                 ;;
 324         --whitespace=*)
 325                 git_am_opt="$git_am_opt --whitespace=${1#--whitespace=}"
 326                 case "${1#--whitespace=}" in
 327                 fix|strip)
 328                         force_rebase=t
 329                         ;;
 330                 esac
 331                 ;;
 332         --ignore-whitespace)
 333                 git_am_opt="$git_am_opt $1"
 334                 ;;
 335         --committer-date-is-author-date|--ignore-date|--signoff|--no-signoff)
 336                 git_am_opt="$git_am_opt $1"
 337                 force_rebase=t
 338                 ;;
 339         -C*)
 340                 git_am_opt="$git_am_opt $1"
 341                 ;;
 342         --root)
 343                 rebase_root=t
 344                 ;;
 345         --force-rebase|--no-ff)
 346                 force_rebase=t
 347                 ;;
 348         --rerere-autoupdate|--no-rerere-autoupdate)
 349                 allow_rerere_autoupdate="$1"
 350                 ;;
 351         --gpg-sign)
 352                 gpg_sign_opt=-S
 353                 ;;
 354         --gpg-sign=*)
 355                 gpg_sign_opt="-S${1#--gpg-sign=}"
 356                 ;;
 357         --)
 358                 shift
 359                 break
 360                 ;;
 361         *)
 362                 usage
 363                 ;;
 364         esac
 365         shift
 366 done
 367 test $# -gt 2 && usage
 368
 369 if test -n "$action"
 370 then
 371         test -z "$in_progress" && die "$(gettext "No rebase in progress?")"
 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 ($action)"
 376                 export GIT_REFLOG_ACTION
 377         fi
 378 fi
 379
 380 if test "$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
 385 case "$action" in
 386 continue)
 387         # Sanity check
 388         git rev-parse --verify HEAD >/dev/null ||
 389                 die "$(gettext "Cannot read HEAD")"
 390         git update-index --ignore-submodules --refresh &&
 391         git diff-files --quiet --ignore-submodules || {
 392                 echo "$(gettext "You must edit all merge conflicts and then
 393 mark them as resolved using git add")"
 394                 exit 1
 395         }
 396         read_basic_state
 397         run_specific_rebase
 398         ;;
 399 skip)
 400         output git reset --hard HEAD || exit $?
 401         read_basic_state
 402         run_specific_rebase
 403         ;;
 404 abort)
 405         git rerere clear
 406         read_basic_state
 407         case "$head_name" in
 408         refs/*)
 409                 git symbolic-ref -m "rebase: aborting" HEAD $head_name ||
 410                 die "$(eval_gettext "Could not move back to \$head_name")"
 411                 ;;
 412         esac
 413         output git reset --hard $orig_head
 414         finish_rebase
 415         exit
 416         ;;
 417 quit)
 418         exec rm -rf "$state_dir"
 419         ;;
 420 edit-todo)
 421         run_specific_rebase
 422         ;;
 423 show-current-patch)
 424         run_specific_rebase
 425         die "BUG: run_specific_rebase is not supposed to return here"
 426         ;;
 427 esac
 428
 429 # Make sure no rebase is in progress
 430 if test -n "$in_progress"
 431 then
 432         state_dir_base=${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
 437 I wonder if you are in the middle of another rebase.  If that is the
 438 case, please try
 439         $cmd_live_rebase
 440 If that is not the case, please
 441         $cmd_clear_stale_rebase
 442 and run me again.  I am stopping in case you still have something
 443 valuable there.')"
 444 fi
 445
 446 if test -n "$rebase_root" && test -z "$onto"
 447 then
 448         test -z "$interactive_rebase" && interactive_rebase=implied
 449 fi
 450
 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="$apply_dir"
 462 fi
 463
 464 if test -t 2 && test -z "$GIT_QUIET"
 465 then
 466         git_format_patch_opt="$git_format_patch_opt --progress"
 467 fi
 468
 469 if test -z "$rebase_root"
 470 then
 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" \
 478                                 "against" "git rebase $(gettext '<branch>')"
 479                 fi
 480
 481                 test "$fork_point" = auto && fork_point=t
 482                 ;;
 483         *)      upstream_name="$1"
 484                 if test "$upstream_name" = "-"
 485                 then
 486                         upstream_name="@{-1}"
 487                 fi
 488                 shift
 489                 ;;
 490         esac
 491         upstream=$(peel_committish "${upstream_name}") ||
 492         die "$(eval_gettext "invalid upstream '\$upstream_name'")"
 493         upstream_arg="$upstream_name"
 494 else
 495         if test -z "$onto"
 496         then
 497                 empty_tree=$(git hash-object -t tree /dev/null)
 498                 onto=$(git commit-tree $empty_tree </dev/null)
 499                 squash_onto="$onto"
 500         fi
 501         unset upstream_name
 502         unset upstream
 503         test $# -gt 1 && usage
 504         upstream_arg=--root
 505 fi
 506
 507 # Make sure the branch to rebase onto is valid.
 508 onto_name=${onto-"$upstream_name"}
 509 case "$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                 ?*"$LF"?*)
 516                         die "$(eval_gettext "\$onto_name: there are more than one merge bases")"
 517                         ;;
 518                 '')
 519                         die "$(eval_gettext "\$onto_name: there is no merge base")"
 520                         ;;
 521                 esac
 522         else
 523                 die "$(eval_gettext "\$onto_name: there is no merge base")"
 524         fi
 525         ;;
 526 *)
 527         onto=$(peel_committish "$onto_name") ||
 528         die "$(eval_gettext "Does not point to a valid commit: \$onto_name")"
 529         ;;
 530 esac
 531
 532 # If the branch to rebase is given, that is the branch we will rebase
 533 # $branch_name -- branch/commit being rebased, or HEAD (already detached)
 534 # $orig_head -- commit object name of tip of the branch before rebasing
 535 # $head_name -- refs/heads/<that-branch> or "detached HEAD"
 536 switch_to=
 537 case "$#" in
 538 1)
 539         # Is it "rebase other $branchname" or "rebase other $commit"?
 540         branch_name="$1"
 541         switch_to="$1"
 542
 543         # Is it a local branch?
 544         if git show-ref --verify --quiet -- "refs/heads/$branch_name" &&
 545            orig_head=$(git rev-parse -q --verify "refs/heads/$branch_name")
 546         then
 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 "$branch_name")
 550         then
 551                 head_name="detached HEAD"
 552
 553         else
 554                 die "$(eval_gettext "fatal: no such branch/commit '\$branch_name'")"
 555         fi
 556         ;;
 557 0)
 558         # Do not need to switch branches, we are already on it.
 559         if branch_name=$(git symbolic-ref -q HEAD)
 560         then
 561                 head_name=$branch_name
 562                 branch_name=$(expr "z$branch_name" : 'zrefs/heads/\(.*\)')
 563         else
 564                 head_name="detached HEAD"
 565                 branch_name=HEAD
 566         fi
 567         orig_head=$(git rev-parse --verify HEAD) || exit
 568         ;;
 569 *)
 570         die "BUG: unexpected number of arguments left to parse"
 571         ;;
 572 esac
 573
 574 if test "$fork_point" = t
 575 then
 576         new_upstream=$(git merge-base --fork-point "$upstream_name" \
 577                         "${switch_to:-HEAD}")
 578         if test -n "$new_upstream"
 579         then
 580                 restrict_revision=$new_upstream
 581         fi
 582 fi
 583
 584 if test "$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: $stash_abbrev')" &&
 593         git reset --hard
 594 fi
 595
 596 require_clean_work_tree "rebase" "$(gettext "Please commit or stash them.")"
 597
 598 # Now we are rebasing commits $upstream..$orig_head (or with --root,
 599 # everything leading up to $orig_head) on top of $onto
 600
 601 # Check if we are already based on $onto with linear history,
 602 # but this should be done only when upstream and onto are the same
 603 # and if this is not an interactive rebase.
 604 mb=$(git merge-base "$onto" "$orig_head")
 605 if test "$type" != interactive && test "$upstream" = "$onto" &&
 606         test "$mb" = "$onto" && test -z "$restrict_revision" &&
 607         # linear history?
 608         ! (git rev-list --parents "$onto".."$orig_head" | sane_grep " .* ") > /dev/null
 609 then
 610         if test -z "$force_rebase"
 611         then
 612                 # Lazily switch to the target branch if needed...
 613                 test -z "$switch_to" ||
 614                 GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" \
 615                         git checkout -q "$switch_to" --
 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 "$(eval_gettext "Current branch \$branch_name is up to date.")"
 622                 fi
 623                 finish_rebase
 624                 exit 0
 625         else
 626                 if test "$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
 633         fi
 634 fi
 635
 636 # If a hook exists, give it a chance to interrupt
 637 run_pre_rebase_hook "$upstream_arg" "$@"
 638
 639 if test -n "$diffstat"
 640 then
 641         if test -n "$verbose"
 642         then
 643                 echo "$(eval_gettext "Changes from \$mb to \$onto:")"
 644         fi
 645         # We want color (if set), but no pager
 646         GIT_PAGER='' git diff --stat --summary "$mb" "$onto"
 647 fi
 648
 649 test "$type" = interactive && run_specific_rebase
 650
 651 # Detach HEAD and reset the tree
 652 say "$(gettext "First, rewinding head to replay your work on top of it...")"
 653
 654 GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" \
 655         git checkout -q "$onto^0" || die "could not detach HEAD"
 656 git update-ref ORIG_HEAD $orig_head
 657
 658 # If the $onto is a proper descendant of the tip of the branch, then
 659 # we just fast-forwarded.
 660 if test "$mb" = "$orig_head"
 661 then
 662         say "$(eval_gettext "Fast-forwarded \$branch_name to \$onto_name.")"
 663         move_to_original_branch
 664         finish_rebase
 665         exit 0
 666 fi
 667
 668 if test -n "$rebase_root"
 669 then
 670         revisions="$onto..$orig_head"
 671 else
 672         revisions="${restrict_revision-$upstream}..$orig_head"
 673 fi
 674
 675 run_specific_rebase