Andrew's git - gitweb.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 $done.
  14todo="$state_dir"/git-rebase-todo
  15
  16GIT_CHERRY_PICK_HELP="$resolvemsg"
  17export GIT_CHERRY_PICK_HELP
  18
  19comment_char=$(git config --get core.commentchar 2>/dev/null)
  20case "$comment_char" in
  21'' | auto)
  22        comment_char="#"
  23        ;;
  24?)
  25        ;;
  26*)
  27        comment_char=$(echo "$comment_char" | cut -c1)
  28        ;;
  29esac
  30
  31die_abort () {
  32        apply_autostash
  33        rm -rf "$state_dir"
  34        die "$1"
  35}
  36
  37has_action () {
  38        test -n "$(git stripspace --strip-comments <"$1")"
  39}
  40
  41git_sequence_editor () {
  42        if test -z "$GIT_SEQUENCE_EDITOR"
  43        then
  44                GIT_SEQUENCE_EDITOR="$(git config sequence.editor)"
  45                if [ -z "$GIT_SEQUENCE_EDITOR" ]
  46                then
  47                        GIT_SEQUENCE_EDITOR="$(git var GIT_EDITOR)" || return $?
  48                fi
  49        fi
  50
  51        eval "$GIT_SEQUENCE_EDITOR" '"$@"'
  52}
  53
  54expand_todo_ids() {
  55        git rebase--helper --expand-ids
  56}
  57
  58collapse_todo_ids() {
  59        git rebase--helper --shorten-ids
  60}
  61
  62get_missing_commit_check_level () {
  63        check_level=$(git config --get rebase.missingCommitsCheck)
  64        check_level=${check_level:-ignore}
  65        # Don't be case sensitive
  66        printf '%s' "$check_level" | tr 'A-Z' 'a-z'
  67}
  68
  69# Initiate an action. If the cannot be any
  70# further action it  may exec a command
  71# or exit and not return.
  72#
  73# TODO: Consider a cleaner return model so it
  74# never exits and always return 0 if process
  75# is complete.
  76#
  77# Parameter 1 is the action to initiate.
  78#
  79# Returns 0 if the action was able to complete
  80# and if 1 if further processing is required.
  81initiate_action () {
  82        case "$1" in
  83        continue)
  84                exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
  85                     --continue
  86                ;;
  87        skip)
  88                git rerere clear
  89                exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \
  90                     --continue
  91                ;;
  92        edit-todo)
  93                exec git rebase--helper --edit-todo
  94                ;;
  95        show-current-patch)
  96                exec git show REBASE_HEAD --
  97                ;;
  98        *)
  99                return 1 # continue
 100                ;;
 101        esac
 102}
 103
 104init_basic_state () {
 105        orig_head=$(git rev-parse --verify HEAD) || die "$(gettext "No HEAD?")"
 106        mkdir -p "$state_dir" || die "$(eval_gettext "Could not create temporary \$state_dir")"
 107        rm -f "$(git rev-parse --git-path REBASE_HEAD)"
 108
 109        : > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")"
 110        write_basic_state
 111}
 112
 113init_revisions_and_shortrevisions () {
 114        shorthead=$(git rev-parse --short $orig_head)
 115        shortonto=$(git rev-parse --short $onto)
 116        if test -z "$rebase_root"
 117                # this is now equivalent to ! -z "$upstream"
 118        then
 119                shortupstream=$(git rev-parse --short $upstream)
 120                revisions=$upstream...$orig_head
 121                shortrevisions=$shortupstream..$shorthead
 122        else
 123                revisions=$onto...$orig_head
 124                shortrevisions=$shorthead
 125                test -z "$squash_onto" ||
 126                echo "$squash_onto" >"$state_dir"/squash-onto
 127        fi
 128}
 129
 130git_rebase__interactive () {
 131        initiate_action "$action"
 132        ret=$?
 133        if test $ret = 0; then
 134                return 0
 135        fi
 136
 137        git rebase--helper --prepare-branch "$switch_to" ${verbose:+--verbose}
 138        init_basic_state
 139
 140        init_revisions_and_shortrevisions
 141
 142        git rebase--helper --make-script ${keep_empty:+--keep-empty} \
 143                ${rebase_merges:+--rebase-merges} \
 144                ${rebase_cousins:+--rebase-cousins} \
 145                $revisions ${restrict_revision+^$restrict_revision} >"$todo" ||
 146        die "$(gettext "Could not generate todo list")"
 147
 148        exec git rebase--helper --complete-action "$shortrevisions" "$onto_name" \
 149                "$shortonto" "$orig_head" "$cmd" $allow_empty_message \
 150                ${autosquash:+--autosquash} ${keep_empty:+--keep-empty} \
 151                ${verbose:+--verbose} ${force_rebase:+--no-ff}
 152}