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

   1 # This shell script fragment is sourced by git-rebase to implement
   2 # its interactive mode.  "git rebase --interactive" makes it easy
   3 # to fix up commits in the middle of a series and rearrange commits.
   4 #
   5 # Copyright (c) 2006 Johannes E. Schindelin
   6 #
   7 # The original idea comes from Eric W. Biederman, in
   8 # https://public-inbox.org/git/m1odwkyuf5.fsf_-_@ebiederm.dsl.xmission.com/
   9 #
  10 # The file containing rebase commands, comments, and empty lines.
  11 # This file is created by "git rebase -i" then edited by the user.  As
  12 # the lines are processed, they are removed from the front of this
  13 # file and written to the tail of $done.
  14 todo="$state_dir"/git-rebase-todo
  15
  16 # The rebase command lines that have already been processed.  A line
  17 # is moved here when it is first handled, before any associated user
  18 # actions.
  19 done="$state_dir"/done
  20
  21 # The commit message that is planned to be used for any changes that
  22 # need to be committed following a user interaction.
  23 msg="$state_dir"/message
  24
  25 # The file into which is accumulated the suggested commit message for
  26 # squash/fixup commands.  When the first of a series of squash/fixups
  27 # is seen, the file is created and the commit message from the
  28 # previous commit and from the first squash/fixup commit are written
  29 # to it.  The commit message for each subsequent squash/fixup commit
  30 # is appended to the file as it is processed.
  31 #
  32 # The first line of the file is of the form
  33 #     # This is a combination of $count commits.
  34 # where $count is the number of commits whose messages have been
  35 # written to the file so far (including the initial "pick" commit).
  36 # Each time that a commit message is processed, this line is read and
  37 # updated.  It is deleted just before the combined commit is made.
  38 squash_msg="$state_dir"/message-squash
  39
  40 # If the current series of squash/fixups has not yet included a squash
  41 # command, then this file exists and holds the commit message of the
  42 # original "pick" commit.  (If the series ends without a "squash"
  43 # command, then this can be used as the commit message of the combined
  44 # commit without opening the editor.)
  45 fixup_msg="$state_dir"/message-fixup
  46
  47 # $rewritten is the name of a directory containing files for each
  48 # commit that is reachable by at least one merge base of $head and
  49 # $upstream. They are not necessarily rewritten, but their children
  50 # might be.  This ensures that commits on merged, but otherwise
  51 # unrelated side branches are left alone. (Think "X" in the man page's
  52 # example.)
  53 rewritten="$state_dir"/rewritten
  54
  55 dropped="$state_dir"/dropped
  56
  57 end="$state_dir"/end
  58 msgnum="$state_dir"/msgnum
  59
  60 # A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
  61 # GIT_AUTHOR_DATE that will be used for the commit that is currently
  62 # being rebased.
  63 author_script="$state_dir"/author-script
  64
  65 # When an "edit" rebase command is being processed, the SHA1 of the
  66 # commit to be edited is recorded in this file.  When "git rebase
  67 # --continue" is executed, if there are any staged changes then they
  68 # will be amended to the HEAD commit, but only provided the HEAD
  69 # commit is still the commit to be edited.  When any other rebase
  70 # command is processed, this file is deleted.
  71 amend="$state_dir"/amend
  72
  73 # For the post-rewrite hook, we make a list of rewritten commits and
  74 # their new sha1s.  The rewritten-pending list keeps the sha1s of
  75 # commits that have been processed, but not committed yet,
  76 # e.g. because they are waiting for a 'squash' command.
  77 rewritten_list="$state_dir"/rewritten-list
  78 rewritten_pending="$state_dir"/rewritten-pending
  79
  80 # Work around Git for Windows' Bash whose "read" does not strip CRLF
  81 # and leaves CR at the end instead.
  82 cr=$(printf "\015")
  83
  84 strategy_args=${strategy:+--strategy=$strategy}
  85 test -n "$strategy_opts" &&
  86 eval '
  87         for strategy_opt in '"$strategy_opts"'
  88         do
  89                 strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")"
  90         done
  91 '
  92
  93 GIT_CHERRY_PICK_HELP="$resolvemsg"
  94 export GIT_CHERRY_PICK_HELP
  95
  96 comment_char=$(git config --get core.commentchar 2>/dev/null)
  97 case "$comment_char" in
  98 '' | auto)
  99         comment_char="#"
 100         ;;
 101 ?)
 102         ;;
 103 *)
 104         comment_char=$(echo "$comment_char" | cut -c1)
 105         ;;
 106 esac
 107
 108 warn () {
 109         printf '%s\n' "$*" >&2
 110 }
 111
 112 # Output the commit message for the specified commit.
 113 commit_message () {
 114         git cat-file commit "$1" | sed "1,/^$/d"
 115 }
 116
 117 orig_reflog_action="$GIT_REFLOG_ACTION"
 118
 119 comment_for_reflog () {
 120         case "$orig_reflog_action" in
 121         ''|rebase*)
 122                 GIT_REFLOG_ACTION="rebase -i ($1)"
 123                 export GIT_REFLOG_ACTION
 124                 ;;
 125         esac
 126 }
 127
 128 last_count=
 129 mark_action_done () {
 130         sed -e 1q < "$todo" >> "$done"
 131         sed -e 1d < "$todo" >> "$todo".new
 132         mv -f "$todo".new "$todo"
 133         new_count=$(( $(git stripspace --strip-comments <"$done" | wc -l) ))
 134         echo $new_count >"$msgnum"
 135         total=$(($new_count + $(git stripspace --strip-comments <"$todo" | wc -l)))
 136         echo $total >"$end"
 137         if test "$last_count" != "$new_count"
 138         then
 139                 last_count=$new_count
 140                 eval_gettext "Rebasing (\$new_count/\$total)"; printf "\r"
 141                 test -z "$verbose" || echo
 142         fi
 143 }
 144
 145 # Put the last action marked done at the beginning of the todo list
 146 # again. If there has not been an action marked done yet, leave the list of
 147 # items on the todo list unchanged.
 148 reschedule_last_action () {
 149         tail -n 1 "$done" | cat - "$todo" >"$todo".new
 150         sed -e \$d <"$done" >"$done".new
 151         mv -f "$todo".new "$todo"
 152         mv -f "$done".new "$done"
 153 }
 154
 155 append_todo_help () {
 156         gettext "
 157 Commands:
 158  p, pick = use commit
 159  r, reword = use commit, but edit the commit message
 160  e, edit = use commit, but stop for amending
 161  s, squash = use commit, but meld into previous commit
 162  f, fixup = like \"squash\", but discard this commit's log message
 163  x, exec = run command (the rest of the line) using shell
 164  d, drop = remove commit
 165
 166 These lines can be re-ordered; they are executed from top to bottom.
 167 " | git stripspace --comment-lines >>"$todo"
 168
 169         if test $(get_missing_commit_check_level) = error
 170         then
 171                 gettext "
 172 Do not remove any line. Use 'drop' explicitly to remove a commit.
 173 " | git stripspace --comment-lines >>"$todo"
 174         else
 175                 gettext "
 176 If you remove a line here THAT COMMIT WILL BE LOST.
 177 " | git stripspace --comment-lines >>"$todo"
 178         fi
 179 }
 180
 181 make_patch () {
 182         sha1_and_parents="$(git rev-list --parents -1 "$1")"
 183         case "$sha1_and_parents" in
 184         ?*' '?*' '?*)
 185                 git diff --cc $sha1_and_parents
 186                 ;;
 187         ?*' '?*)
 188                 git diff-tree -p "$1^!"
 189                 ;;
 190         *)
 191                 echo "Root commit"
 192                 ;;
 193         esac > "$state_dir"/patch
 194         test -f "$msg" ||
 195                 commit_message "$1" > "$msg"
 196         test -f "$author_script" ||
 197                 get_author_ident_from_commit "$1" > "$author_script"
 198 }
 199
 200 die_with_patch () {
 201         echo "$1" > "$state_dir"/stopped-sha
 202         make_patch "$1"
 203         die "$2"
 204 }
 205
 206 exit_with_patch () {
 207         echo "$1" > "$state_dir"/stopped-sha
 208         make_patch $1
 209         git rev-parse --verify HEAD > "$amend"
 210         gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")}
 211         warn "$(eval_gettext "\
 212 You can amend the commit now, with
 213
 214         git commit --amend \$gpg_sign_opt_quoted
 215
 216 Once you are satisfied with your changes, run
 217
 218         git rebase --continue")"
 219         warn
 220         exit $2
 221 }
 222
 223 die_abort () {
 224         apply_autostash
 225         rm -rf "$state_dir"
 226         die "$1"
 227 }
 228
 229 has_action () {
 230         test -n "$(git stripspace --strip-comments <"$1")"
 231 }
 232
 233 is_empty_commit() {
 234         tree=$(git rev-parse -q --verify "$1"^{tree} 2>/dev/null) || {
 235                 sha1=$1
 236                 die "$(eval_gettext "\$sha1: not a commit that can be picked")"
 237         }
 238         ptree=$(git rev-parse -q --verify "$1"^^{tree} 2>/dev/null) ||
 239                 ptree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
 240         test "$tree" = "$ptree"
 241 }
 242
 243 is_merge_commit()
 244 {
 245         git rev-parse --verify --quiet "$1"^2 >/dev/null 2>&1
 246 }
 247
 248 # Run command with GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
 249 # GIT_AUTHOR_DATE exported from the current environment.
 250 do_with_author () {
 251         (
 252                 export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 253                 "$@"
 254         )
 255 }
 256
 257 git_sequence_editor () {
 258         if test -z "$GIT_SEQUENCE_EDITOR"
 259         then
 260                 GIT_SEQUENCE_EDITOR="$(git config sequence.editor)"
 261                 if [ -z "$GIT_SEQUENCE_EDITOR" ]
 262                 then
 263                         GIT_SEQUENCE_EDITOR="$(git var GIT_EDITOR)" || return $?
 264                 fi
 265         fi
 266
 267         eval "$GIT_SEQUENCE_EDITOR" '"$@"'
 268 }
 269
 270 pick_one () {
 271         ff=--ff
 272
 273         case "$1" in -n) sha1=$2; ff= ;; *) sha1=$1 ;; esac
 274         case "$force_rebase" in '') ;; ?*) ff= ;; esac
 275         output git rev-parse --verify $sha1 || die "$(eval_gettext "Invalid commit name: \$sha1")"
 276
 277         if is_empty_commit "$sha1"
 278         then
 279                 empty_args="--allow-empty"
 280         fi
 281
 282         test -d "$rewritten" &&
 283                 pick_one_preserving_merges "$@" && return
 284         output eval git cherry-pick \
 285                         ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
 286                         "$strategy_args" $empty_args $ff "$@"
 287
 288         # If cherry-pick dies it leaves the to-be-picked commit unrecorded. Reschedule
 289         # previous task so this commit is not lost.
 290         ret=$?
 291         case "$ret" in [01]) ;; *) reschedule_last_action ;; esac
 292         return $ret
 293 }
 294
 295 pick_one_preserving_merges () {
 296         fast_forward=t
 297         case "$1" in
 298         -n)
 299                 fast_forward=f
 300                 sha1=$2
 301                 ;;
 302         *)
 303                 sha1=$1
 304                 ;;
 305         esac
 306         sha1=$(git rev-parse $sha1)
 307
 308         if test -f "$state_dir"/current-commit
 309         then
 310                 if test "$fast_forward" = t
 311                 then
 312                         while read current_commit
 313                         do
 314                                 git rev-parse HEAD > "$rewritten"/$current_commit
 315                         done <"$state_dir"/current-commit
 316                         rm "$state_dir"/current-commit ||
 317                                 die "$(gettext "Cannot write current commit's replacement sha1")"
 318                 fi
 319         fi
 320
 321         echo $sha1 >> "$state_dir"/current-commit
 322
 323         # rewrite parents; if none were rewritten, we can fast-forward.
 324         new_parents=
 325         pend=" $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)"
 326         if test "$pend" = " "
 327         then
 328                 pend=" root"
 329         fi
 330         while [ "$pend" != "" ]
 331         do
 332                 p=$(expr "$pend" : ' \([^ ]*\)')
 333                 pend="${pend# $p}"
 334
 335                 if test -f "$rewritten"/$p
 336                 then
 337                         new_p=$(cat "$rewritten"/$p)
 338
 339                         # If the todo reordered commits, and our parent is marked for
 340                         # rewriting, but hasn't been gotten to yet, assume the user meant to
 341                         # drop it on top of the current HEAD
 342                         if test -z "$new_p"
 343                         then
 344                                 new_p=$(git rev-parse HEAD)
 345                         fi
 346
 347                         test $p != $new_p && fast_forward=f
 348                         case "$new_parents" in
 349                         *$new_p*)
 350                                 ;; # do nothing; that parent is already there
 351                         *)
 352                                 new_parents="$new_parents $new_p"
 353                                 ;;
 354                         esac
 355                 else
 356                         if test -f "$dropped"/$p
 357                         then
 358                                 fast_forward=f
 359                                 replacement="$(cat "$dropped"/$p)"
 360                                 test -z "$replacement" && replacement=root
 361                                 pend=" $replacement$pend"
 362                         else
 363                                 new_parents="$new_parents $p"
 364                         fi
 365                 fi
 366         done
 367         case $fast_forward in
 368         t)
 369                 output warn "$(eval_gettext "Fast-forward to \$sha1")"
 370                 output git reset --hard $sha1 ||
 371                         die "$(eval_gettext "Cannot fast-forward to \$sha1")"
 372                 ;;
 373         f)
 374                 first_parent=$(expr "$new_parents" : ' \([^ ]*\)')
 375
 376                 if [ "$1" != "-n" ]
 377                 then
 378                         # detach HEAD to current parent
 379                         output git checkout $first_parent 2> /dev/null ||
 380                                 die "$(eval_gettext "Cannot move HEAD to \$first_parent")"
 381                 fi
 382
 383                 case "$new_parents" in
 384                 ' '*' '*)
 385                         test "a$1" = a-n && die "$(eval_gettext "Refusing to squash a merge: \$sha1")"
 386
 387                         # redo merge
 388                         author_script_content=$(get_author_ident_from_commit $sha1)
 389                         eval "$author_script_content"
 390                         msg_content="$(commit_message $sha1)"
 391                         # No point in merging the first parent, that's HEAD
 392                         new_parents=${new_parents# $first_parent}
 393                         merge_args="--no-log --no-ff"
 394                         if ! do_with_author output eval \
 395                         'git merge ${gpg_sign_opt:+"$gpg_sign_opt"} \
 396                                 $merge_args $strategy_args -m "$msg_content" $new_parents'
 397                         then
 398                                 printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG
 399                                 die_with_patch $sha1 "$(eval_gettext "Error redoing merge \$sha1")"
 400                         fi
 401                         echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list"
 402                         ;;
 403                 *)
 404                         output eval git cherry-pick \
 405                                 ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
 406                                 "$strategy_args" "$@" ||
 407                                 die_with_patch $sha1 "$(eval_gettext "Could not pick \$sha1")"
 408                         ;;
 409                 esac
 410                 ;;
 411         esac
 412 }
 413
 414 this_nth_commit_message () {
 415         n=$1
 416         eval_gettext "This is the commit message #\${n}:"
 417 }
 418
 419 skip_nth_commit_message () {
 420         n=$1
 421         eval_gettext "The commit message #\${n} will be skipped:"
 422 }
 423
 424 update_squash_messages () {
 425         if test -f "$squash_msg"; then
 426                 mv "$squash_msg" "$squash_msg".bak || exit
 427                 count=$(($(sed -n \
 428                         -e "1s/^$comment_char[^0-9]*\([0-9][0-9]*\).*/\1/p" \
 429                         -e "q" < "$squash_msg".bak)+1))
 430                 {
 431                         printf '%s\n' "$comment_char $(eval_ngettext \
 432                                 "This is a combination of \$count commit." \
 433                                 "This is a combination of \$count commits." \
 434                                 $count)"
 435                         sed -e 1d -e '2,/^./{
 436                                 /^$/d
 437                         }' <"$squash_msg".bak
 438                 } >"$squash_msg"
 439         else
 440                 commit_message HEAD >"$fixup_msg" ||
 441                 die "$(eval_gettext "Cannot write \$fixup_msg")"
 442                 count=2
 443                 {
 444                         printf '%s\n' "$comment_char $(gettext "This is a combination of 2 commits.")"
 445                         printf '%s\n' "$comment_char $(gettext "This is the 1st commit message:")"
 446                         echo
 447                         cat "$fixup_msg"
 448                 } >"$squash_msg"
 449         fi
 450         case $1 in
 451         squash)
 452                 rm -f "$fixup_msg"
 453                 echo
 454                 printf '%s\n' "$comment_char $(this_nth_commit_message $count)"
 455                 echo
 456                 commit_message $2
 457                 ;;
 458         fixup)
 459                 echo
 460                 printf '%s\n' "$comment_char $(skip_nth_commit_message $count)"
 461                 echo
 462                 # Change the space after the comment character to TAB:
 463                 commit_message $2 | git stripspace --comment-lines | sed -e 's/ /       /'
 464                 ;;
 465         esac >>"$squash_msg"
 466 }
 467
 468 peek_next_command () {
 469         git stripspace --strip-comments <"$todo" | sed -n -e 's/ .*//p' -e q
 470 }
 471
 472 # A squash/fixup has failed.  Prepare the long version of the squash
 473 # commit message, then die_with_patch.  This code path requires the
 474 # user to edit the combined commit message for all commits that have
 475 # been squashed/fixedup so far.  So also erase the old squash
 476 # messages, effectively causing the combined commit to be used as the
 477 # new basis for any further squash/fixups.  Args: sha1 rest
 478 die_failed_squash() {
 479         sha1=$1
 480         rest=$2
 481         mv "$squash_msg" "$msg" || exit
 482         rm -f "$fixup_msg"
 483         cp "$msg" "$GIT_DIR"/MERGE_MSG || exit
 484         warn
 485         warn "$(eval_gettext "Could not apply \$sha1... \$rest")"
 486         die_with_patch $sha1 ""
 487 }
 488
 489 flush_rewritten_pending() {
 490         test -s "$rewritten_pending" || return
 491         newsha1="$(git rev-parse HEAD^0)"
 492         sed "s/$/ $newsha1/" < "$rewritten_pending" >> "$rewritten_list"
 493         rm -f "$rewritten_pending"
 494 }
 495
 496 record_in_rewritten() {
 497         oldsha1="$(git rev-parse $1)"
 498         echo "$oldsha1" >> "$rewritten_pending"
 499
 500         case "$(peek_next_command)" in
 501         squash|s|fixup|f)
 502                 ;;
 503         *)
 504                 flush_rewritten_pending
 505                 ;;
 506         esac
 507 }
 508
 509 do_pick () {
 510         sha1=$1
 511         rest=$2
 512         if test "$(git rev-parse HEAD)" = "$squash_onto"
 513         then
 514                 # Set the correct commit message and author info on the
 515                 # sentinel root before cherry-picking the original changes
 516                 # without committing (-n).  Finally, update the sentinel again
 517                 # to include these changes.  If the cherry-pick results in a
 518                 # conflict, this means our behaviour is similar to a standard
 519                 # failed cherry-pick during rebase, with a dirty index to
 520                 # resolve before manually running git commit --amend then git
 521                 # rebase --continue.
 522                 git commit --allow-empty --allow-empty-message --amend \
 523                            --no-post-rewrite -n -q -C $sha1 &&
 524                         pick_one -n $sha1 &&
 525                         git commit --allow-empty --allow-empty-message \
 526                                    --amend --no-post-rewrite -n -q -C $sha1 \
 527                                    ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 528                                    die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")"
 529         else
 530                 pick_one $sha1 ||
 531                         die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")"
 532         fi
 533 }
 534
 535 do_next () {
 536         rm -f "$msg" "$author_script" "$amend" "$state_dir"/stopped-sha || exit
 537         read -r command sha1 rest < "$todo"
 538         case "$command" in
 539         "$comment_char"*|''|noop|drop|d)
 540                 mark_action_done
 541                 ;;
 542         "$cr")
 543                 # Work around CR left by "read" (e.g. with Git for Windows' Bash).
 544                 mark_action_done
 545                 ;;
 546         pick|p)
 547                 comment_for_reflog pick
 548
 549                 mark_action_done
 550                 do_pick $sha1 "$rest"
 551                 record_in_rewritten $sha1
 552                 ;;
 553         reword|r)
 554                 comment_for_reflog reword
 555
 556                 mark_action_done
 557                 do_pick $sha1 "$rest"
 558                 git commit --amend --no-post-rewrite ${gpg_sign_opt:+"$gpg_sign_opt"} || {
 559                         warn "$(eval_gettext "\
 560 Could not amend commit after successfully picking \$sha1... \$rest
 561 This is most likely due to an empty commit message, or the pre-commit hook
 562 failed. If the pre-commit hook failed, you may need to resolve the issue before
 563 you are able to reword the commit.")"
 564                         exit_with_patch $sha1 1
 565                 }
 566                 record_in_rewritten $sha1
 567                 ;;
 568         edit|e)
 569                 comment_for_reflog edit
 570
 571                 mark_action_done
 572                 do_pick $sha1 "$rest"
 573                 sha1_abbrev=$(git rev-parse --short $sha1)
 574                 warn "$(eval_gettext "Stopped at \$sha1_abbrev... \$rest")"
 575                 exit_with_patch $sha1 0
 576                 ;;
 577         squash|s|fixup|f)
 578                 case "$command" in
 579                 squash|s)
 580                         squash_style=squash
 581                         ;;
 582                 fixup|f)
 583                         squash_style=fixup
 584                         ;;
 585                 esac
 586                 comment_for_reflog $squash_style
 587
 588                 test -f "$done" && has_action "$done" ||
 589                         die "$(eval_gettext "Cannot '\$squash_style' without a previous commit")"
 590
 591                 mark_action_done
 592                 update_squash_messages $squash_style $sha1
 593                 author_script_content=$(get_author_ident_from_commit HEAD)
 594                 echo "$author_script_content" > "$author_script"
 595                 eval "$author_script_content"
 596                 if ! pick_one -n $sha1
 597                 then
 598                         git rev-parse --verify HEAD >"$amend"
 599                         die_failed_squash $sha1 "$rest"
 600                 fi
 601                 case "$(peek_next_command)" in
 602                 squash|s|fixup|f)
 603                         # This is an intermediate commit; its message will only be
 604                         # used in case of trouble.  So use the long version:
 605                         do_with_author output git commit --amend --no-verify -F "$squash_msg" \
 606                                 ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 607                                 die_failed_squash $sha1 "$rest"
 608                         ;;
 609                 *)
 610                         # This is the final command of this squash/fixup group
 611                         if test -f "$fixup_msg"
 612                         then
 613                                 do_with_author git commit --amend --no-verify -F "$fixup_msg" \
 614                                         ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 615                                         die_failed_squash $sha1 "$rest"
 616                         else
 617                                 cp "$squash_msg" "$GIT_DIR"/SQUASH_MSG || exit
 618                                 rm -f "$GIT_DIR"/MERGE_MSG
 619                                 do_with_author git commit --amend --no-verify -F "$GIT_DIR"/SQUASH_MSG -e \
 620                                         ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 621                                         die_failed_squash $sha1 "$rest"
 622                         fi
 623                         rm -f "$squash_msg" "$fixup_msg"
 624                         ;;
 625                 esac
 626                 record_in_rewritten $sha1
 627                 ;;
 628         x|"exec")
 629                 read -r command rest < "$todo"
 630                 mark_action_done
 631                 eval_gettextln "Executing: \$rest"
 632                 "${SHELL:-@SHELL_PATH@}" -c "$rest" # Actual execution
 633                 status=$?
 634                 # Run in subshell because require_clean_work_tree can die.
 635                 dirty=f
 636                 (require_clean_work_tree "rebase" 2>/dev/null) || dirty=t
 637                 if test "$status" -ne 0
 638                 then
 639                         warn "$(eval_gettext "Execution failed: \$rest")"
 640                         test "$dirty" = f ||
 641                                 warn "$(gettext "and made changes to the index and/or the working tree")"
 642
 643                         warn "$(gettext "\
 644 You can fix the problem, and then run
 645
 646         git rebase --continue")"
 647                         warn
 648                         if test $status -eq 127         # command not found
 649                         then
 650                                 status=1
 651                         fi
 652                         exit "$status"
 653                 elif test "$dirty" = t
 654                 then
 655                         # TRANSLATORS: after these lines is a command to be issued by the user
 656                         warn "$(eval_gettext "\
 657 Execution succeeded: \$rest
 658 but left changes to the index and/or the working tree
 659 Commit or stash your changes, and then run
 660
 661         git rebase --continue")"
 662                         warn
 663                         exit 1
 664                 fi
 665                 ;;
 666         *)
 667                 warn "$(eval_gettext "Unknown command: \$command \$sha1 \$rest")"
 668                 fixtodo="$(gettext "Please fix this using 'git rebase --edit-todo'.")"
 669                 if git rev-parse --verify -q "$sha1" >/dev/null
 670                 then
 671                         die_with_patch $sha1 "$fixtodo"
 672                 else
 673                         die "$fixtodo"
 674                 fi
 675                 ;;
 676         esac
 677         test -s "$todo" && return
 678
 679         comment_for_reflog finish &&
 680         newhead=$(git rev-parse HEAD) &&
 681         case $head_name in
 682         refs/*)
 683                 message="$GIT_REFLOG_ACTION: $head_name onto $onto" &&
 684                 git update-ref -m "$message" $head_name $newhead $orig_head &&
 685                 git symbolic-ref \
 686                   -m "$GIT_REFLOG_ACTION: returning to $head_name" \
 687                   HEAD $head_name
 688                 ;;
 689         esac && {
 690                 test ! -f "$state_dir"/verbose ||
 691                         git diff-tree --stat $orig_head..HEAD
 692         } &&
 693         {
 694                 test -s "$rewritten_list" &&
 695                 git notes copy --for-rewrite=rebase < "$rewritten_list" ||
 696                 true # we don't care if this copying failed
 697         } &&
 698         hook="$(git rev-parse --git-path hooks/post-rewrite)"
 699         if test -x "$hook" && test -s "$rewritten_list"; then
 700                 "$hook" rebase < "$rewritten_list"
 701                 true # we don't care if this hook failed
 702         fi &&
 703                 warn "$(eval_gettext "Successfully rebased and updated \$head_name.")"
 704
 705         return 1 # not failure; just to break the do_rest loop
 706 }
 707
 708 # can only return 0, when the infinite loop breaks
 709 do_rest () {
 710         while :
 711         do
 712                 do_next || break
 713         done
 714 }
 715
 716 # skip picking commits whose parents are unchanged
 717 skip_unnecessary_picks () {
 718         fd=3
 719         while read -r command rest
 720         do
 721                 # fd=3 means we skip the command
 722                 case "$fd,$command" in
 723                 3,pick|3,p)
 724                         # pick a commit whose parent is current $onto -> skip
 725                         sha1=${rest%% *}
 726                         case "$(git rev-parse --verify --quiet "$sha1"^)" in
 727                         "$onto"*)
 728                                 onto=$sha1
 729                                 ;;
 730                         *)
 731                                 fd=1
 732                                 ;;
 733                         esac
 734                         ;;
 735                 3,"$comment_char"*|3,)
 736                         # copy comments
 737                         ;;
 738                 *)
 739                         fd=1
 740                         ;;
 741                 esac
 742                 printf '%s\n' "$command${rest:+ }$rest" >&$fd
 743         done <"$todo" >"$todo.new" 3>>"$done" &&
 744         mv -f "$todo".new "$todo" &&
 745         case "$(peek_next_command)" in
 746         squash|s|fixup|f)
 747                 record_in_rewritten "$onto"
 748                 ;;
 749         esac ||
 750                 die "$(gettext "Could not skip unnecessary pick commands")"
 751 }
 752
 753 transform_todo_ids () {
 754         while read -r command rest
 755         do
 756                 case "$command" in
 757                 "$comment_char"* | exec)
 758                         # Be careful for oddball commands like 'exec'
 759                         # that do not have a SHA-1 at the beginning of $rest.
 760                         ;;
 761                 *)
 762                         sha1=$(git rev-parse --verify --quiet "$@" ${rest%%[     ]*}) &&
 763                         rest="$sha1 ${rest#*[    ]}"
 764                         ;;
 765                 esac
 766                 printf '%s\n' "$command${rest:+ }$rest"
 767         done <"$todo" >"$todo.new" &&
 768         mv -f "$todo.new" "$todo"
 769 }
 770
 771 expand_todo_ids() {
 772         transform_todo_ids
 773 }
 774
 775 collapse_todo_ids() {
 776         transform_todo_ids --short
 777 }
 778
 779 # Rearrange the todo list that has both "pick sha1 msg" and
 780 # "pick sha1 fixup!/squash! msg" appears in it so that the latter
 781 # comes immediately after the former, and change "pick" to
 782 # "fixup"/"squash".
 783 #
 784 # Note that if the config has specified a custom instruction format
 785 # each log message will be re-retrieved in order to normalize the
 786 # autosquash arrangement
 787 rearrange_squash () {
 788         # extract fixup!/squash! lines and resolve any referenced sha1's
 789         while read -r pick sha1 message
 790         do
 791                 test -z "${format}" || message=$(git log -n 1 --format="%s" ${sha1})
 792                 case "$message" in
 793                 "squash! "*|"fixup! "*)
 794                         action="${message%%!*}"
 795                         rest=$message
 796                         prefix=
 797                         # skip all squash! or fixup! (but save for later)
 798                         while :
 799                         do
 800                                 case "$rest" in
 801                                 "squash! "*|"fixup! "*)
 802                                         prefix="$prefix${rest%%!*},"
 803                                         rest="${rest#*! }"
 804                                         ;;
 805                                 *)
 806                                         break
 807                                         ;;
 808                                 esac
 809                         done
 810                         printf '%s %s %s %s\n' "$sha1" "$action" "$prefix" "$rest"
 811                         # if it's a single word, try to resolve to a full sha1 and
 812                         # emit a second copy. This allows us to match on both message
 813                         # and on sha1 prefix
 814                         if test "${rest#* }" = "$rest"; then
 815                                 fullsha="$(git rev-parse -q --verify "$rest" 2>/dev/null)"
 816                                 if test -n "$fullsha"; then
 817                                         # prefix the action to uniquely identify this line as
 818                                         # intended for full sha1 match
 819                                         echo "$sha1 +$action $prefix $fullsha"
 820                                 fi
 821                         fi
 822                 esac
 823         done >"$1.sq" <"$1"
 824         test -s "$1.sq" || return
 825
 826         used=
 827         while read -r pick sha1 message
 828         do
 829                 case " $used" in
 830                 *" $sha1 "*) continue ;;
 831                 esac
 832                 printf '%s\n' "$pick $sha1 $message"
 833                 test -z "${format}" || message=$(git log -n 1 --format="%s" ${sha1})
 834                 used="$used$sha1 "
 835                 while read -r squash action msg_prefix msg_content
 836                 do
 837                         case " $used" in
 838                         *" $squash "*) continue ;;
 839                         esac
 840                         emit=0
 841                         case "$action" in
 842                         +*)
 843                                 action="${action#+}"
 844                                 # full sha1 prefix test
 845                                 case "$msg_content" in "$sha1"*) emit=1;; esac ;;
 846                         *)
 847                                 # message prefix test
 848                                 case "$message" in "$msg_content"*) emit=1;; esac ;;
 849                         esac
 850                         if test $emit = 1; then
 851                                 if test -n "${format}"
 852                                 then
 853                                         msg_content=$(git log -n 1 --format="${format}" ${squash})
 854                                 else
 855                                         msg_content="$(echo "$msg_prefix" | sed "s/,/! /g")$msg_content"
 856                                 fi
 857                                 printf '%s\n' "$action $squash $msg_content"
 858                                 used="$used$squash "
 859                         fi
 860                 done <"$1.sq"
 861         done >"$1.rearranged" <"$1"
 862         cat "$1.rearranged" >"$1"
 863         rm -f "$1.sq" "$1.rearranged"
 864 }
 865
 866 # Add commands after a pick or after a squash/fixup serie
 867 # in the todo list.
 868 add_exec_commands () {
 869         {
 870                 first=t
 871                 while read -r insn rest
 872                 do
 873                         case $insn in
 874                         pick)
 875                                 test -n "$first" ||
 876                                 printf "%s" "$cmd"
 877                                 ;;
 878                         esac
 879                         printf "%s %s\n" "$insn" "$rest"
 880                         first=
 881                 done
 882                 printf "%s" "$cmd"
 883         } <"$1" >"$1.new" &&
 884         mv "$1.new" "$1"
 885 }
 886
 887 # Check if the SHA-1 passed as an argument is a
 888 # correct one, if not then print $2 in "$todo".badsha
 889 # $1: the SHA-1 to test
 890 # $2: the line number of the input
 891 # $3: the input filename
 892 check_commit_sha () {
 893         badsha=0
 894         if test -z "$1"
 895         then
 896                 badsha=1
 897         else
 898                 sha1_verif="$(git rev-parse --verify --quiet $1^{commit})"
 899                 if test -z "$sha1_verif"
 900                 then
 901                         badsha=1
 902                 fi
 903         fi
 904
 905         if test $badsha -ne 0
 906         then
 907                 line="$(sed -n -e "${2}p" "$3")"
 908                 warn "$(eval_gettext "\
 909 Warning: the SHA-1 is missing or isn't a commit in the following line:
 910  - \$line")"
 911                 warn
 912         fi
 913
 914         return $badsha
 915 }
 916
 917 # prints the bad commits and bad commands
 918 # from the todolist in stdin
 919 check_bad_cmd_and_sha () {
 920         retval=0
 921         lineno=0
 922         while read -r command rest
 923         do
 924                 lineno=$(( $lineno + 1 ))
 925                 case $command in
 926                 "$comment_char"*|''|noop|x|exec)
 927                         # Doesn't expect a SHA-1
 928                         ;;
 929                 "$cr")
 930                         # Work around CR left by "read" (e.g. with Git for
 931                         # Windows' Bash).
 932                         ;;
 933                 pick|p|drop|d|reword|r|edit|e|squash|s|fixup|f)
 934                         if ! check_commit_sha "${rest%%[        ]*}" "$lineno" "$1"
 935                         then
 936                                 retval=1
 937                         fi
 938                         ;;
 939                 *)
 940                         line="$(sed -n -e "${lineno}p" "$1")"
 941                         warn "$(eval_gettext "\
 942 Warning: the command isn't recognized in the following line:
 943  - \$line")"
 944                         warn
 945                         retval=1
 946                         ;;
 947                 esac
 948         done <"$1"
 949         return $retval
 950 }
 951
 952 # Print the list of the SHA-1 of the commits
 953 # from stdin to stdout
 954 todo_list_to_sha_list () {
 955         git stripspace --strip-comments |
 956         while read -r command sha1 rest
 957         do
 958                 case $command in
 959                 "$comment_char"*|''|noop|x|"exec")
 960                         ;;
 961                 *)
 962                         long_sha=$(git rev-list --no-walk "$sha1" 2>/dev/null)
 963                         printf "%s\n" "$long_sha"
 964                         ;;
 965                 esac
 966         done
 967 }
 968
 969 # Use warn for each line in stdin
 970 warn_lines () {
 971         while read -r line
 972         do
 973                 warn " - $line"
 974         done
 975 }
 976
 977 # Switch to the branch in $into and notify it in the reflog
 978 checkout_onto () {
 979         GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name"
 980         output git checkout $onto || die_abort "$(gettext "could not detach HEAD")"
 981         git update-ref ORIG_HEAD $orig_head
 982 }
 983
 984 get_missing_commit_check_level () {
 985         check_level=$(git config --get rebase.missingCommitsCheck)
 986         check_level=${check_level:-ignore}
 987         # Don't be case sensitive
 988         printf '%s' "$check_level" | tr 'A-Z' 'a-z'
 989 }
 990
 991 # Check if the user dropped some commits by mistake
 992 # Behaviour determined by rebase.missingCommitsCheck.
 993 # Check if there is an unrecognized command or a
 994 # bad SHA-1 in a command.
 995 check_todo_list () {
 996         raise_error=f
 997
 998         check_level=$(get_missing_commit_check_level)
 999
1000         case "$check_level" in
1001         warn|error)
1002                 # Get the SHA-1 of the commits
1003                 todo_list_to_sha_list <"$todo".backup >"$todo".oldsha1
1004                 todo_list_to_sha_list <"$todo" >"$todo".newsha1
1005
1006                 # Sort the SHA-1 and compare them
1007                 sort -u "$todo".oldsha1 >"$todo".oldsha1+
1008                 mv "$todo".oldsha1+ "$todo".oldsha1
1009                 sort -u "$todo".newsha1 >"$todo".newsha1+
1010                 mv "$todo".newsha1+ "$todo".newsha1
1011                 comm -2 -3 "$todo".oldsha1 "$todo".newsha1 >"$todo".miss
1012
1013                 # Warn about missing commits
1014                 if test -s "$todo".miss
1015                 then
1016                         test "$check_level" = error && raise_error=t
1017
1018                         warn "$(gettext "\
1019 Warning: some commits may have been dropped accidentally.
1020 Dropped commits (newer to older):")"
1021
1022                         # Make the list user-friendly and display
1023                         opt="--no-walk=sorted --format=oneline --abbrev-commit --stdin"
1024                         git rev-list $opt <"$todo".miss | warn_lines
1025
1026                         warn "$(gettext "\
1027 To avoid this message, use \"drop\" to explicitly remove a commit.
1028
1029 Use 'git config rebase.missingCommitsCheck' to change the level of warnings.
1030 The possible behaviours are: ignore, warn, error.")"
1031                         warn
1032                 fi
1033                 ;;
1034         ignore)
1035                 ;;
1036         *)
1037                 warn "$(eval_gettext "Unrecognized setting \$check_level for option rebase.missingCommitsCheck. Ignoring.")"
1038                 ;;
1039         esac
1040
1041         if ! check_bad_cmd_and_sha "$todo"
1042         then
1043                 raise_error=t
1044         fi
1045
1046         if test $raise_error = t
1047         then
1048                 # Checkout before the first commit of the
1049                 # rebase: this way git rebase --continue
1050                 # will work correctly as it expects HEAD to be
1051                 # placed before the commit of the next action
1052                 checkout_onto
1053
1054                 warn "$(gettext "You can fix this with 'git rebase --edit-todo' and then run 'git rebase --continue'.")"
1055                 die "$(gettext "Or you can abort the rebase with 'git rebase --abort'.")"
1056         fi
1057 }
1058
1059 # The whole contents of this file is run by dot-sourcing it from
1060 # inside a shell function.  It used to be that "return"s we see
1061 # below were not inside any function, and expected to return
1062 # to the function that dot-sourced us.
1063 #
1064 # However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a
1065 # construct and continue to run the statements that follow such a "return".
1066 # As a work-around, we introduce an extra layer of a function
1067 # here, and immediately call it after defining it.
1068 git_rebase__interactive () {
1069
1070 case "$action" in
1071 continue)
1072         if test ! -d "$rewritten"
1073         then
1074                 exec git rebase--helper ${force_rebase:+--no-ff} --continue
1075         fi
1076         # do we have anything to commit?
1077         if git diff-index --cached --quiet HEAD --
1078         then
1079                 # Nothing to commit -- skip this commit
1080
1081                 test ! -f "$GIT_DIR"/CHERRY_PICK_HEAD ||
1082                 rm "$GIT_DIR"/CHERRY_PICK_HEAD ||
1083                 die "$(gettext "Could not remove CHERRY_PICK_HEAD")"
1084         else
1085                 if ! test -f "$author_script"
1086                 then
1087                         gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")}
1088                         die "$(eval_gettext "\
1089 You have staged changes in your working tree.
1090 If these changes are meant to be
1091 squashed into the previous commit, run:
1092
1093   git commit --amend \$gpg_sign_opt_quoted
1094
1095 If they are meant to go into a new commit, run:
1096
1097   git commit \$gpg_sign_opt_quoted
1098
1099 In both cases, once you're done, continue with:
1100
1101   git rebase --continue
1102 ")"
1103                 fi
1104                 . "$author_script" ||
1105                         die "$(gettext "Error trying to find the author identity to amend commit")"
1106                 if test -f "$amend"
1107                 then
1108                         current_head=$(git rev-parse --verify HEAD)
1109                         test "$current_head" = $(cat "$amend") ||
1110                         die "$(gettext "\
1111 You have uncommitted changes in your working tree. Please commit them
1112 first and then run 'git rebase --continue' again.")"
1113                         do_with_author git commit --amend --no-verify -F "$msg" -e \
1114                                 ${gpg_sign_opt:+"$gpg_sign_opt"} ||
1115                                 die "$(gettext "Could not commit staged changes.")"
1116                 else
1117                         do_with_author git commit --no-verify -F "$msg" -e \
1118                                 ${gpg_sign_opt:+"$gpg_sign_opt"} ||
1119                                 die "$(gettext "Could not commit staged changes.")"
1120                 fi
1121         fi
1122
1123         if test -r "$state_dir"/stopped-sha
1124         then
1125                 record_in_rewritten "$(cat "$state_dir"/stopped-sha)"
1126         fi
1127
1128         require_clean_work_tree "rebase"
1129         do_rest
1130         return 0
1131         ;;
1132 skip)
1133         git rerere clear
1134
1135         if test ! -d "$rewritten"
1136         then
1137                 exec git rebase--helper ${force_rebase:+--no-ff} --continue
1138         fi
1139         do_rest
1140         return 0
1141         ;;
1142 edit-todo)
1143         git stripspace --strip-comments <"$todo" >"$todo".new
1144         mv -f "$todo".new "$todo"
1145         collapse_todo_ids
1146         append_todo_help
1147         gettext "
1148 You are editing the todo file of an ongoing interactive rebase.
1149 To continue rebase after editing, run:
1150     git rebase --continue
1151
1152 " | git stripspace --comment-lines >>"$todo"
1153
1154         git_sequence_editor "$todo" ||
1155                 die "$(gettext "Could not execute editor")"
1156         expand_todo_ids
1157
1158         exit
1159         ;;
1160 esac
1161
1162 comment_for_reflog start
1163
1164 if test ! -z "$switch_to"
1165 then
1166         GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to"
1167         output git checkout "$switch_to" -- ||
1168                 die "$(eval_gettext "Could not checkout \$switch_to")"
1169
1170         comment_for_reflog start
1171 fi
1172
1173 orig_head=$(git rev-parse --verify HEAD) || die "$(gettext "No HEAD?")"
1174 mkdir -p "$state_dir" || die "$(eval_gettext "Could not create temporary \$state_dir")"
1175
1176 : > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")"
1177 write_basic_state
1178 if test t = "$preserve_merges"
1179 then
1180         if test -z "$rebase_root"
1181         then
1182                 mkdir "$rewritten" &&
1183                 for c in $(git merge-base --all $orig_head $upstream)
1184                 do
1185                         echo $onto > "$rewritten"/$c ||
1186                                 die "$(gettext "Could not init rewritten commits")"
1187                 done
1188         else
1189                 mkdir "$rewritten" &&
1190                 echo $onto > "$rewritten"/root ||
1191                         die "$(gettext "Could not init rewritten commits")"
1192         fi
1193         # No cherry-pick because our first pass is to determine
1194         # parents to rewrite and skipping dropped commits would
1195         # prematurely end our probe
1196         merges_option=
1197 else
1198         merges_option="--no-merges --cherry-pick"
1199 fi
1200
1201 shorthead=$(git rev-parse --short $orig_head)
1202 shortonto=$(git rev-parse --short $onto)
1203 if test -z "$rebase_root"
1204         # this is now equivalent to ! -z "$upstream"
1205 then
1206         shortupstream=$(git rev-parse --short $upstream)
1207         revisions=$upstream...$orig_head
1208         shortrevisions=$shortupstream..$shorthead
1209 else
1210         revisions=$onto...$orig_head
1211         shortrevisions=$shorthead
1212 fi
1213 format=$(git config --get rebase.instructionFormat)
1214 # the 'rev-list .. | sed' requires %m to parse; the instruction requires %H to parse
1215 git rev-list $merges_option --format="%m%H ${format:-%s}" \
1216         --reverse --left-right --topo-order \
1217         $revisions ${restrict_revision+^$restrict_revision} | \
1218         sed -n "s/^>//p" |
1219 while read -r sha1 rest
1220 do
1221
1222         if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1
1223         then
1224                 comment_out="$comment_char "
1225         else
1226                 comment_out=
1227         fi
1228
1229         if test t != "$preserve_merges"
1230         then
1231                 printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo"
1232         else
1233                 if test -z "$rebase_root"
1234                 then
1235                         preserve=t
1236                         for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)
1237                         do
1238                                 if test -f "$rewritten"/$p
1239                                 then
1240                                         preserve=f
1241                                 fi
1242                         done
1243                 else
1244                         preserve=f
1245                 fi
1246                 if test f = "$preserve"
1247                 then
1248                         touch "$rewritten"/$sha1
1249                         printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo"
1250                 fi
1251         fi
1252 done
1253
1254 # Watch for commits that been dropped by --cherry-pick
1255 if test t = "$preserve_merges"
1256 then
1257         mkdir "$dropped"
1258         # Save all non-cherry-picked changes
1259         git rev-list $revisions --left-right --cherry-pick | \
1260                 sed -n "s/^>//p" > "$state_dir"/not-cherry-picks
1261         # Now all commits and note which ones are missing in
1262         # not-cherry-picks and hence being dropped
1263         git rev-list $revisions |
1264         while read rev
1265         do
1266                 if test -f "$rewritten"/$rev &&
1267                    ! sane_grep "$rev" "$state_dir"/not-cherry-picks >/dev/null
1268                 then
1269                         # Use -f2 because if rev-list is telling us this commit is
1270                         # not worthwhile, we don't want to track its multiple heads,
1271                         # just the history of its first-parent for others that will
1272                         # be rebasing on top of it
1273                         git rev-list --parents -1 $rev | cut -d' ' -s -f2 > "$dropped"/$rev
1274                         sha1=$(git rev-list -1 $rev)
1275                         sane_grep -v "^[a-z][a-z]* $sha1" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo"
1276                         rm "$rewritten"/$rev
1277                 fi
1278         done
1279 fi
1280
1281 test -s "$todo" || echo noop >> "$todo"
1282 test -n "$autosquash" && rearrange_squash "$todo"
1283 test -n "$cmd" && add_exec_commands "$todo"
1284
1285 todocount=$(git stripspace --strip-comments <"$todo" | wc -l)
1286 todocount=${todocount##* }
1287
1288 cat >>"$todo" <<EOF
1289
1290 $comment_char $(eval_ngettext \
1291         "Rebase \$shortrevisions onto \$shortonto (\$todocount command)" \
1292         "Rebase \$shortrevisions onto \$shortonto (\$todocount commands)" \
1293         "$todocount")
1294 EOF
1295 append_todo_help
1296 gettext "
1297 However, if you remove everything, the rebase will be aborted.
1298
1299 " | git stripspace --comment-lines >>"$todo"
1300
1301 if test -z "$keep_empty"
1302 then
1303         printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo"
1304 fi
1305
1306
1307 has_action "$todo" ||
1308         return 2
1309
1310 cp "$todo" "$todo".backup
1311 collapse_todo_ids
1312 git_sequence_editor "$todo" ||
1313         die_abort "$(gettext "Could not execute editor")"
1314
1315 has_action "$todo" ||
1316         return 2
1317
1318 check_todo_list
1319
1320 expand_todo_ids
1321
1322 test -d "$rewritten" || test -n "$force_rebase" || skip_unnecessary_picks
1323
1324 checkout_onto
1325 if test -z "$rebase_root" && test ! -d "$rewritten"
1326 then
1327         require_clean_work_tree "rebase"
1328         exec git rebase--helper ${force_rebase:+--no-ff} --continue
1329 fi
1330 do_rest
1331
1332 }
1333 # ... and then we call the whole thing.
1334 git_rebase__interactive