git-rebase--interactive.shon commit Merge branch 'tb/complete-describe' (952cc9b)
   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 $done.
  14todo="$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.
  19done="$state_dir"/done
  20
  21# The commit message that is planned to be used for any changes that
  22# need to be committed following a user interaction.
  23msg="$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 $count is the number of commits whose messages have been
  35# written to the file so far (including the initial "pick" commit).
  36# Each time that a commit message is processed, this line is read and
  37# updated.  It is deleted just before the combined commit is made.
  38squash_msg="$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.)
  45fixup_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# $upstream. They are not necessarily rewritten, but their children
  50# might be.  This ensures that commits on merged, but otherwise
  51# unrelated side branches are left alone. (Think "X" in the man page's
  52# example.)
  53rewritten="$state_dir"/rewritten
  54
  55dropped="$state_dir"/dropped
  56
  57end="$state_dir"/end
  58msgnum="$state_dir"/msgnum
  59
  60# A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
  61# GIT_AUTHOR_DATE that will be used for the commit that is currently
  62# being rebased.
  63author_script="$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.
  71amend="$state_dir"/amend
  72
  73# For the post-rewrite hook, we make a list of rewritten commits and
  74# their new sha1s.  The rewritten-pending list keeps the sha1s of
  75# commits that have been processed, but not committed yet,
  76# e.g. because they are waiting for a 'squash' command.
  77rewritten_list="$state_dir"/rewritten-list
  78rewritten_pending="$state_dir"/rewritten-pending
  79
  80# Work around Git for Windows' Bash whose "read" does not strip CRLF
  81# and leaves CR at the end instead.
  82cr=$(printf "\015")
  83
  84strategy_args=${strategy:+--strategy=$strategy}
  85test -n "$strategy_opts" &&
  86eval '
  87        for strategy_opt in '"$strategy_opts"'
  88        do
  89                strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")"
  90        done
  91'
  92
  93GIT_CHERRY_PICK_HELP="$resolvemsg"
  94export GIT_CHERRY_PICK_HELP
  95
  96comment_char=$(git config --get core.commentchar 2>/dev/null)
  97case "$comment_char" in
  98'' | auto)
  99        comment_char="#"
 100        ;;
 101?)
 102        ;;
 103*)
 104        comment_char=$(echo "$comment_char" | cut -c1)
 105        ;;
 106esac
 107
 108warn () {
 109        printf '%s\n' "$*" >&2
 110}
 111
 112# Output the commit message for the specified commit.
 113commit_message () {
 114        git cat-file commit "$1" | sed "1,/^$/d"
 115}
 116
 117orig_reflog_action="$GIT_REFLOG_ACTION"
 118
 119comment_for_reflog () {
 120        case "$orig_reflog_action" in
 121        ''|rebase*)
 122                GIT_REFLOG_ACTION="rebase -i ($1)"
 123                export GIT_REFLOG_ACTION
 124                ;;
 125        esac
 126}
 127
 128last_count=
 129mark_action_done () {
 130        sed -e 1q < "$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.
 148reschedule_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 "$done"
 153}
 154
 155append_todo_help () {
 156        gettext "
 157Commands:
 158p, pick = use commit
 159r, reword = use commit, but edit the commit message
 160e, edit = use commit, but stop for amending
 161s, squash = use commit, but meld into previous commit
 162f, fixup = like \"squash\", but discard this commit's log message
 163x, exec = run command (the rest of the line) using shell
 164d, drop = remove commit
 165
 166These lines can be re-ordered; they are executed from top to bottom.
 167" | git stripspace --comment-lines >>"$todo"
 168
 169        if test $(get_missing_commit_check_level) = error
 170        then
 171                gettext "
 172Do not remove any line. Use 'drop' explicitly to remove a commit.
 173" | git stripspace --comment-lines >>"$todo"
 174        else
 175                gettext "
 176If you remove a line here THAT COMMIT WILL BE LOST.
 177" | git stripspace --comment-lines >>"$todo"
 178        fi
 179}
 180
 181make_patch () {
 182        sha1_and_parents="$(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
 200die_with_patch () {
 201        echo "$1" > "$state_dir"/stopped-sha
 202        make_patch "$1"
 203        die "$2"
 204}
 205
 206exit_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 "\
 212You can amend the commit now, with
 213
 214        git commit --amend \$gpg_sign_opt_quoted
 215
 216Once you are satisfied with your changes, run
 217
 218        git rebase --continue")"
 219        warn
 220        exit $2
 221}
 222
 223die_abort () {
 224        apply_autostash
 225        rm -rf "$state_dir"
 226        die "$1"
 227}
 228
 229has_action () {
 230        test -n "$(git stripspace --strip-comments <"$1")"
 231}
 232
 233is_empty_commit() {
 234        tree=$(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
 243is_merge_commit()
 244{
 245        git rev-parse --verify --quiet "$1"^2 >/dev/null 2>&1
 246}
 247
 248# Run command with GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and
 249# GIT_AUTHOR_DATE exported from the current environment.
 250do_with_author () {
 251        (
 252                export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
 253                "$@"
 254        )
 255}
 256
 257git_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
 270pick_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 $allow_rerere_autoupdate \
 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
 295pick_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                                $allow_rerere_autoupdate $merge_args \
 397                                $strategy_args -m "$msg_content" $new_parents'
 398                        then
 399                                printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG
 400                                die_with_patch $sha1 "$(eval_gettext "Error redoing merge \$sha1")"
 401                        fi
 402                        echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list"
 403                        ;;
 404                *)
 405                        output eval git cherry-pick $allow_rerere_autoupdate \
 406                                ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \
 407                                "$strategy_args" "$@" ||
 408                                die_with_patch $sha1 "$(eval_gettext "Could not pick \$sha1")"
 409                        ;;
 410                esac
 411                ;;
 412        esac
 413}
 414
 415this_nth_commit_message () {
 416        n=$1
 417        eval_gettext "This is the commit message #\${n}:"
 418}
 419
 420skip_nth_commit_message () {
 421        n=$1
 422        eval_gettext "The commit message #\${n} will be skipped:"
 423}
 424
 425update_squash_messages () {
 426        if test -f "$squash_msg"; then
 427                mv "$squash_msg" "$squash_msg".bak || exit
 428                count=$(($(sed -n \
 429                        -e "1s/^$comment_char[^0-9]*\([0-9][0-9]*\).*/\1/p" \
 430                        -e "q" < "$squash_msg".bak)+1))
 431                {
 432                        printf '%s\n' "$comment_char $(eval_ngettext \
 433                                "This is a combination of \$count commit." \
 434                                "This is a combination of \$count commits." \
 435                                $count)"
 436                        sed -e 1d -e '2,/^./{
 437                                /^$/d
 438                        }' <"$squash_msg".bak
 439                } >"$squash_msg"
 440        else
 441                commit_message HEAD >"$fixup_msg" ||
 442                die "$(eval_gettext "Cannot write \$fixup_msg")"
 443                count=2
 444                {
 445                        printf '%s\n' "$comment_char $(gettext "This is a combination of 2 commits.")"
 446                        printf '%s\n' "$comment_char $(gettext "This is the 1st commit message:")"
 447                        echo
 448                        cat "$fixup_msg"
 449                } >"$squash_msg"
 450        fi
 451        case $1 in
 452        squash)
 453                rm -f "$fixup_msg"
 454                echo
 455                printf '%s\n' "$comment_char $(this_nth_commit_message $count)"
 456                echo
 457                commit_message $2
 458                ;;
 459        fixup)
 460                echo
 461                printf '%s\n' "$comment_char $(skip_nth_commit_message $count)"
 462                echo
 463                # Change the space after the comment character to TAB:
 464                commit_message $2 | git stripspace --comment-lines | sed -e 's/ /       /'
 465                ;;
 466        esac >>"$squash_msg"
 467}
 468
 469peek_next_command () {
 470        git stripspace --strip-comments <"$todo" | sed -n -e 's/ .*//p' -e q
 471}
 472
 473# A squash/fixup has failed.  Prepare the long version of the squash
 474# commit message, then die_with_patch.  This code path requires the
 475# user to edit the combined commit message for all commits that have
 476# been squashed/fixedup so far.  So also erase the old squash
 477# messages, effectively causing the combined commit to be used as the
 478# new basis for any further squash/fixups.  Args: sha1 rest
 479die_failed_squash() {
 480        sha1=$1
 481        rest=$2
 482        mv "$squash_msg" "$msg" || exit
 483        rm -f "$fixup_msg"
 484        cp "$msg" "$GIT_DIR"/MERGE_MSG || exit
 485        warn
 486        warn "$(eval_gettext "Could not apply \$sha1... \$rest")"
 487        die_with_patch $sha1 ""
 488}
 489
 490flush_rewritten_pending() {
 491        test -s "$rewritten_pending" || return
 492        newsha1="$(git rev-parse HEAD^0)"
 493        sed "s/$/ $newsha1/" < "$rewritten_pending" >> "$rewritten_list"
 494        rm -f "$rewritten_pending"
 495}
 496
 497record_in_rewritten() {
 498        oldsha1="$(git rev-parse $1)"
 499        echo "$oldsha1" >> "$rewritten_pending"
 500
 501        case "$(peek_next_command)" in
 502        squash|s|fixup|f)
 503                ;;
 504        *)
 505                flush_rewritten_pending
 506                ;;
 507        esac
 508}
 509
 510do_pick () {
 511        sha1=$1
 512        rest=$2
 513        if test "$(git rev-parse HEAD)" = "$squash_onto"
 514        then
 515                # Set the correct commit message and author info on the
 516                # sentinel root before cherry-picking the original changes
 517                # without committing (-n).  Finally, update the sentinel again
 518                # to include these changes.  If the cherry-pick results in a
 519                # conflict, this means our behaviour is similar to a standard
 520                # failed cherry-pick during rebase, with a dirty index to
 521                # resolve before manually running git commit --amend then git
 522                # rebase --continue.
 523                git commit --allow-empty --allow-empty-message --amend \
 524                           --no-post-rewrite -n -q -C $sha1 &&
 525                        pick_one -n $sha1 &&
 526                        git commit --allow-empty --allow-empty-message \
 527                                   --amend --no-post-rewrite -n -q -C $sha1 \
 528                                   ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 529                                   die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")"
 530        else
 531                pick_one $sha1 ||
 532                        die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")"
 533        fi
 534}
 535
 536do_next () {
 537        rm -f "$msg" "$author_script" "$amend" "$state_dir"/stopped-sha || exit
 538        read -r command sha1 rest < "$todo"
 539        case "$command" in
 540        "$comment_char"*|''|noop|drop|d)
 541                mark_action_done
 542                ;;
 543        "$cr")
 544                # Work around CR left by "read" (e.g. with Git for Windows' Bash).
 545                mark_action_done
 546                ;;
 547        pick|p)
 548                comment_for_reflog pick
 549
 550                mark_action_done
 551                do_pick $sha1 "$rest"
 552                record_in_rewritten $sha1
 553                ;;
 554        reword|r)
 555                comment_for_reflog reword
 556
 557                mark_action_done
 558                do_pick $sha1 "$rest"
 559                git commit --amend --no-post-rewrite ${gpg_sign_opt:+"$gpg_sign_opt"} || {
 560                        warn "$(eval_gettext "\
 561Could not amend commit after successfully picking \$sha1... \$rest
 562This is most likely due to an empty commit message, or the pre-commit hook
 563failed. If the pre-commit hook failed, you may need to resolve the issue before
 564you are able to reword the commit.")"
 565                        exit_with_patch $sha1 1
 566                }
 567                record_in_rewritten $sha1
 568                ;;
 569        edit|e)
 570                comment_for_reflog edit
 571
 572                mark_action_done
 573                do_pick $sha1 "$rest"
 574                sha1_abbrev=$(git rev-parse --short $sha1)
 575                warn "$(eval_gettext "Stopped at \$sha1_abbrev... \$rest")"
 576                exit_with_patch $sha1 0
 577                ;;
 578        squash|s|fixup|f)
 579                case "$command" in
 580                squash|s)
 581                        squash_style=squash
 582                        ;;
 583                fixup|f)
 584                        squash_style=fixup
 585                        ;;
 586                esac
 587                comment_for_reflog $squash_style
 588
 589                test -f "$done" && has_action "$done" ||
 590                        die "$(eval_gettext "Cannot '\$squash_style' without a previous commit")"
 591
 592                mark_action_done
 593                update_squash_messages $squash_style $sha1
 594                author_script_content=$(get_author_ident_from_commit HEAD)
 595                echo "$author_script_content" > "$author_script"
 596                eval "$author_script_content"
 597                if ! pick_one -n $sha1
 598                then
 599                        git rev-parse --verify HEAD >"$amend"
 600                        die_failed_squash $sha1 "$rest"
 601                fi
 602                case "$(peek_next_command)" in
 603                squash|s|fixup|f)
 604                        # This is an intermediate commit; its message will only be
 605                        # used in case of trouble.  So use the long version:
 606                        do_with_author output git commit --amend --no-verify -F "$squash_msg" \
 607                                ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 608                                die_failed_squash $sha1 "$rest"
 609                        ;;
 610                *)
 611                        # This is the final command of this squash/fixup group
 612                        if test -f "$fixup_msg"
 613                        then
 614                                do_with_author git commit --amend --no-verify -F "$fixup_msg" \
 615                                        ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 616                                        die_failed_squash $sha1 "$rest"
 617                        else
 618                                cp "$squash_msg" "$GIT_DIR"/SQUASH_MSG || exit
 619                                rm -f "$GIT_DIR"/MERGE_MSG
 620                                do_with_author git commit --amend --no-verify -F "$GIT_DIR"/SQUASH_MSG -e \
 621                                        ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 622                                        die_failed_squash $sha1 "$rest"
 623                        fi
 624                        rm -f "$squash_msg" "$fixup_msg"
 625                        ;;
 626                esac
 627                record_in_rewritten $sha1
 628                ;;
 629        x|"exec")
 630                read -r command rest < "$todo"
 631                mark_action_done
 632                eval_gettextln "Executing: \$rest"
 633                "${SHELL:-@SHELL_PATH@}" -c "$rest" # Actual execution
 634                status=$?
 635                # Run in subshell because require_clean_work_tree can die.
 636                dirty=f
 637                (require_clean_work_tree "rebase" 2>/dev/null) || dirty=t
 638                if test "$status" -ne 0
 639                then
 640                        warn "$(eval_gettext "Execution failed: \$rest")"
 641                        test "$dirty" = f ||
 642                                warn "$(gettext "and made changes to the index and/or the working tree")"
 643
 644                        warn "$(gettext "\
 645You can fix the problem, and then run
 646
 647        git rebase --continue")"
 648                        warn
 649                        if test $status -eq 127         # command not found
 650                        then
 651                                status=1
 652                        fi
 653                        exit "$status"
 654                elif test "$dirty" = t
 655                then
 656                        # TRANSLATORS: after these lines is a command to be issued by the user
 657                        warn "$(eval_gettext "\
 658Execution succeeded: \$rest
 659but left changes to the index and/or the working tree
 660Commit or stash your changes, and then run
 661
 662        git rebase --continue")"
 663                        warn
 664                        exit 1
 665                fi
 666                ;;
 667        *)
 668                warn "$(eval_gettext "Unknown command: \$command \$sha1 \$rest")"
 669                fixtodo="$(gettext "Please fix this using 'git rebase --edit-todo'.")"
 670                if git rev-parse --verify -q "$sha1" >/dev/null
 671                then
 672                        die_with_patch $sha1 "$fixtodo"
 673                else
 674                        die "$fixtodo"
 675                fi
 676                ;;
 677        esac
 678        test -s "$todo" && return
 679
 680        comment_for_reflog finish &&
 681        newhead=$(git rev-parse HEAD) &&
 682        case $head_name in
 683        refs/*)
 684                message="$GIT_REFLOG_ACTION: $head_name onto $onto" &&
 685                git update-ref -m "$message" $head_name $newhead $orig_head &&
 686                git symbolic-ref \
 687                  -m "$GIT_REFLOG_ACTION: returning to $head_name" \
 688                  HEAD $head_name
 689                ;;
 690        esac && {
 691                test ! -f "$state_dir"/verbose ||
 692                        git diff-tree --stat $orig_head..HEAD
 693        } &&
 694        {
 695                test -s "$rewritten_list" &&
 696                git notes copy --for-rewrite=rebase < "$rewritten_list" ||
 697                true # we don't care if this copying failed
 698        } &&
 699        hook="$(git rev-parse --git-path hooks/post-rewrite)"
 700        if test -x "$hook" && test -s "$rewritten_list"; then
 701                "$hook" rebase < "$rewritten_list"
 702                true # we don't care if this hook failed
 703        fi &&
 704                warn "$(eval_gettext "Successfully rebased and updated \$head_name.")"
 705
 706        return 1 # not failure; just to break the do_rest loop
 707}
 708
 709# can only return 0, when the infinite loop breaks
 710do_rest () {
 711        while :
 712        do
 713                do_next || break
 714        done
 715}
 716
 717expand_todo_ids() {
 718        git rebase--helper --expand-ids
 719}
 720
 721collapse_todo_ids() {
 722        git rebase--helper --shorten-ids
 723}
 724
 725# Add commands after a pick or after a squash/fixup serie
 726# in the todo list.
 727add_exec_commands () {
 728        {
 729                first=t
 730                while read -r insn rest
 731                do
 732                        case $insn in
 733                        pick)
 734                                test -n "$first" ||
 735                                printf "%s" "$cmd"
 736                                ;;
 737                        esac
 738                        printf "%s %s\n" "$insn" "$rest"
 739                        first=
 740                done
 741                printf "%s" "$cmd"
 742        } <"$1" >"$1.new" &&
 743        mv "$1.new" "$1"
 744}
 745
 746# Switch to the branch in $into and notify it in the reflog
 747checkout_onto () {
 748        GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name"
 749        output git checkout $onto || die_abort "$(gettext "could not detach HEAD")"
 750        git update-ref ORIG_HEAD $orig_head
 751}
 752
 753get_missing_commit_check_level () {
 754        check_level=$(git config --get rebase.missingCommitsCheck)
 755        check_level=${check_level:-ignore}
 756        # Don't be case sensitive
 757        printf '%s' "$check_level" | tr 'A-Z' 'a-z'
 758}
 759
 760# The whole contents of this file is run by dot-sourcing it from
 761# inside a shell function.  It used to be that "return"s we see
 762# below were not inside any function, and expected to return
 763# to the function that dot-sourced us.
 764#
 765# However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a
 766# construct and continue to run the statements that follow such a "return".
 767# As a work-around, we introduce an extra layer of a function
 768# here, and immediately call it after defining it.
 769git_rebase__interactive () {
 770
 771case "$action" in
 772continue)
 773        if test ! -d "$rewritten"
 774        then
 775                exec git rebase--helper ${force_rebase:+--no-ff} --continue
 776        fi
 777        # do we have anything to commit?
 778        if git diff-index --cached --quiet HEAD --
 779        then
 780                # Nothing to commit -- skip this commit
 781
 782                test ! -f "$GIT_DIR"/CHERRY_PICK_HEAD ||
 783                rm "$GIT_DIR"/CHERRY_PICK_HEAD ||
 784                die "$(gettext "Could not remove CHERRY_PICK_HEAD")"
 785        else
 786                if ! test -f "$author_script"
 787                then
 788                        gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")}
 789                        die "$(eval_gettext "\
 790You have staged changes in your working tree.
 791If these changes are meant to be
 792squashed into the previous commit, run:
 793
 794  git commit --amend \$gpg_sign_opt_quoted
 795
 796If they are meant to go into a new commit, run:
 797
 798  git commit \$gpg_sign_opt_quoted
 799
 800In both cases, once you're done, continue with:
 801
 802  git rebase --continue
 803")"
 804                fi
 805                . "$author_script" ||
 806                        die "$(gettext "Error trying to find the author identity to amend commit")"
 807                if test -f "$amend"
 808                then
 809                        current_head=$(git rev-parse --verify HEAD)
 810                        test "$current_head" = $(cat "$amend") ||
 811                        die "$(gettext "\
 812You have uncommitted changes in your working tree. Please commit them
 813first and then run 'git rebase --continue' again.")"
 814                        do_with_author git commit --amend --no-verify -F "$msg" -e \
 815                                ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 816                                die "$(gettext "Could not commit staged changes.")"
 817                else
 818                        do_with_author git commit --no-verify -F "$msg" -e \
 819                                ${gpg_sign_opt:+"$gpg_sign_opt"} ||
 820                                die "$(gettext "Could not commit staged changes.")"
 821                fi
 822        fi
 823
 824        if test -r "$state_dir"/stopped-sha
 825        then
 826                record_in_rewritten "$(cat "$state_dir"/stopped-sha)"
 827        fi
 828
 829        require_clean_work_tree "rebase"
 830        do_rest
 831        return 0
 832        ;;
 833skip)
 834        git rerere clear
 835
 836        if test ! -d "$rewritten"
 837        then
 838                exec git rebase--helper ${force_rebase:+--no-ff} --continue
 839        fi
 840        do_rest
 841        return 0
 842        ;;
 843edit-todo)
 844        git stripspace --strip-comments <"$todo" >"$todo".new
 845        mv -f "$todo".new "$todo"
 846        collapse_todo_ids
 847        append_todo_help
 848        gettext "
 849You are editing the todo file of an ongoing interactive rebase.
 850To continue rebase after editing, run:
 851    git rebase --continue
 852
 853" | git stripspace --comment-lines >>"$todo"
 854
 855        git_sequence_editor "$todo" ||
 856                die "$(gettext "Could not execute editor")"
 857        expand_todo_ids
 858
 859        exit
 860        ;;
 861esac
 862
 863comment_for_reflog start
 864
 865if test ! -z "$switch_to"
 866then
 867        GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to"
 868        output git checkout "$switch_to" -- ||
 869                die "$(eval_gettext "Could not checkout \$switch_to")"
 870
 871        comment_for_reflog start
 872fi
 873
 874orig_head=$(git rev-parse --verify HEAD) || die "$(gettext "No HEAD?")"
 875mkdir -p "$state_dir" || die "$(eval_gettext "Could not create temporary \$state_dir")"
 876
 877: > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")"
 878write_basic_state
 879if test t = "$preserve_merges"
 880then
 881        if test -z "$rebase_root"
 882        then
 883                mkdir "$rewritten" &&
 884                for c in $(git merge-base --all $orig_head $upstream)
 885                do
 886                        echo $onto > "$rewritten"/$c ||
 887                                die "$(gettext "Could not init rewritten commits")"
 888                done
 889        else
 890                mkdir "$rewritten" &&
 891                echo $onto > "$rewritten"/root ||
 892                        die "$(gettext "Could not init rewritten commits")"
 893        fi
 894        # No cherry-pick because our first pass is to determine
 895        # parents to rewrite and skipping dropped commits would
 896        # prematurely end our probe
 897        merges_option=
 898else
 899        merges_option="--no-merges --cherry-pick"
 900fi
 901
 902shorthead=$(git rev-parse --short $orig_head)
 903shortonto=$(git rev-parse --short $onto)
 904if test -z "$rebase_root"
 905        # this is now equivalent to ! -z "$upstream"
 906then
 907        shortupstream=$(git rev-parse --short $upstream)
 908        revisions=$upstream...$orig_head
 909        shortrevisions=$shortupstream..$shorthead
 910else
 911        revisions=$onto...$orig_head
 912        shortrevisions=$shorthead
 913fi
 914if test t != "$preserve_merges"
 915then
 916        git rebase--helper --make-script ${keep_empty:+--keep-empty} \
 917                $revisions ${restrict_revision+^$restrict_revision} >"$todo"
 918else
 919        format=$(git config --get rebase.instructionFormat)
 920        # the 'rev-list .. | sed' requires %m to parse; the instruction requires %H to parse
 921        git rev-list $merges_option --format="%m%H ${format:-%s}" \
 922                --reverse --left-right --topo-order \
 923                $revisions ${restrict_revision+^$restrict_revision} | \
 924                sed -n "s/^>//p" |
 925        while read -r sha1 rest
 926        do
 927
 928                if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1
 929                then
 930                        comment_out="$comment_char "
 931                else
 932                        comment_out=
 933                fi
 934
 935                if test -z "$rebase_root"
 936                then
 937                        preserve=t
 938                        for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)
 939                        do
 940                                if test -f "$rewritten"/$p
 941                                then
 942                                        preserve=f
 943                                fi
 944                        done
 945                else
 946                        preserve=f
 947                fi
 948                if test f = "$preserve"
 949                then
 950                        touch "$rewritten"/$sha1
 951                        printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo"
 952                fi
 953        done
 954fi
 955
 956# Watch for commits that been dropped by --cherry-pick
 957if test t = "$preserve_merges"
 958then
 959        mkdir "$dropped"
 960        # Save all non-cherry-picked changes
 961        git rev-list $revisions --left-right --cherry-pick | \
 962                sed -n "s/^>//p" > "$state_dir"/not-cherry-picks
 963        # Now all commits and note which ones are missing in
 964        # not-cherry-picks and hence being dropped
 965        git rev-list $revisions |
 966        while read rev
 967        do
 968                if test -f "$rewritten"/$rev &&
 969                   ! sane_grep "$rev" "$state_dir"/not-cherry-picks >/dev/null
 970                then
 971                        # Use -f2 because if rev-list is telling us this commit is
 972                        # not worthwhile, we don't want to track its multiple heads,
 973                        # just the history of its first-parent for others that will
 974                        # be rebasing on top of it
 975                        git rev-list --parents -1 $rev | cut -d' ' -s -f2 > "$dropped"/$rev
 976                        sha1=$(git rev-list -1 $rev)
 977                        sane_grep -v "^[a-z][a-z]* $sha1" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo"
 978                        rm "$rewritten"/$rev
 979                fi
 980        done
 981fi
 982
 983test -s "$todo" || echo noop >> "$todo"
 984test -z "$autosquash" || git rebase--helper --rearrange-squash || exit
 985test -n "$cmd" && add_exec_commands "$todo"
 986
 987todocount=$(git stripspace --strip-comments <"$todo" | wc -l)
 988todocount=${todocount##* }
 989
 990cat >>"$todo" <<EOF
 991
 992$comment_char $(eval_ngettext \
 993        "Rebase \$shortrevisions onto \$shortonto (\$todocount command)" \
 994        "Rebase \$shortrevisions onto \$shortonto (\$todocount commands)" \
 995        "$todocount")
 996EOF
 997append_todo_help
 998gettext "
 999However, if you remove everything, the rebase will be aborted.
1000
1001" | git stripspace --comment-lines >>"$todo"
1002
1003if test -z "$keep_empty"
1004then
1005        printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo"
1006fi
1007
1008
1009has_action "$todo" ||
1010        return 2
1011
1012cp "$todo" "$todo".backup
1013collapse_todo_ids
1014git_sequence_editor "$todo" ||
1015        die_abort "$(gettext "Could not execute editor")"
1016
1017has_action "$todo" ||
1018        return 2
1019
1020git rebase--helper --check-todo-list || {
1021        ret=$?
1022        checkout_onto
1023        exit $ret
1024}
1025
1026expand_todo_ids
1027
1028test -d "$rewritten" || test -n "$force_rebase" ||
1029onto="$(git rebase--helper --skip-unnecessary-picks)" ||
1030die "Could not skip unnecessary pick commands"
1031
1032checkout_onto
1033if test -z "$rebase_root" && test ! -d "$rewritten"
1034then
1035        require_clean_work_tree "rebase"
1036        exec git rebase--helper ${force_rebase:+--no-ff} --continue
1037fi
1038do_rest
1039
1040}
1041# ... and then we call the whole thing.
1042git_rebase__interactive