Andrew's git - gitweb.git/blob - git-rebase--merge.sh

   1# This shell script fragment is sourced by git-rebase to implement
   2# its merge-based non-interactive mode that copes well with renamed
   3# files.
   4#
   5# Copyright (c) 2010 Junio C Hamano.
   6#
   7
   8prec=4
   9
  10read_state () {
  11        onto_name=$(cat "$state_dir"/onto_name) &&
  12        end=$(cat "$state_dir"/end) &&
  13        msgnum=$(cat "$state_dir"/msgnum)
  14}
  15
  16continue_merge () {
  17        test -d "$state_dir" || die "$state_dir directory does not exist"
  18
  19        unmerged=$(git ls-files -u)
  20        if test -n "$unmerged"
  21        then
  22                echo "You still have unmerged paths in your index"
  23                echo "did you forget to use git add?"
  24                die "$resolvemsg"
  25        fi
  26
  27        cmt=`cat "$state_dir/current"`
  28        if ! git diff-index --quiet --ignore-submodules HEAD --
  29        then
  30                if ! git commit --no-verify -C "$cmt"
  31                then
  32                        echo "Commit failed, please do not call \"git commit\""
  33                        echo "directly, but instead do one of the following: "
  34                        die "$resolvemsg"
  35                fi
  36                if test -z "$GIT_QUIET"
  37                then
  38                        printf "Committed: %0${prec}d " $msgnum
  39                fi
  40                echo "$cmt $(git rev-parse HEAD^0)" >> "$state_dir/rewritten"
  41        else
  42                if test -z "$GIT_QUIET"
  43                then
  44                        printf "Already applied: %0${prec}d " $msgnum
  45                fi
  46        fi
  47        test -z "$GIT_QUIET" &&
  48        GIT_PAGER='' git log --format=%s -1 "$cmt"
  49
  50        # onto the next patch:
  51        msgnum=$(($msgnum + 1))
  52        echo "$msgnum" >"$state_dir/msgnum"
  53}
  54
  55call_merge () {
  56        cmt="$(cat "$state_dir/cmt.$1")"
  57        echo "$cmt" > "$state_dir/current"
  58        hd=$(git rev-parse --verify HEAD)
  59        cmt_name=$(git symbolic-ref HEAD 2> /dev/null || echo HEAD)
  60        msgnum=$(cat "$state_dir/msgnum")
  61        eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
  62        eval GITHEAD_$hd='$onto_name'
  63        export GITHEAD_$cmt GITHEAD_$hd
  64        if test -n "$GIT_QUIET"
  65        then
  66                GIT_MERGE_VERBOSITY=1 && export GIT_MERGE_VERBOSITY
  67        fi
  68        test -z "$strategy" && strategy=recursive
  69        eval 'git-merge-$strategy' $strategy_opts '"$cmt^" -- "$hd" "$cmt"'
  70        rv=$?
  71        case "$rv" in
  72        0)
  73                unset GITHEAD_$cmt GITHEAD_$hd
  74                return
  75                ;;
  76        1)
  77                git rerere $allow_rerere_autoupdate
  78                die "$resolvemsg"
  79                ;;
  80        2)
  81                echo "Strategy: $strategy failed, try another" 1>&2
  82                die "$resolvemsg"
  83                ;;
  84        *)
  85                die "Unknown exit code ($rv) from command:" \
  86                        "git-merge-$strategy $cmt^ -- HEAD $cmt"
  87                ;;
  88        esac
  89}
  90
  91finish_rb_merge () {
  92        move_to_original_branch
  93        if test -s "$state_dir"/rewritten
  94        then
  95                git notes copy --for-rewrite=rebase <"$state_dir"/rewritten
  96                if test -x "$GIT_DIR"/hooks/post-rewrite
  97                then
  98                        "$GIT_DIR"/hooks/post-rewrite rebase <"$state_dir"/rewritten
  99                fi
 100        fi
 101        say All done.
 102}
 103
 104case "$action" in
 105continue)
 106        read_state
 107        continue_merge
 108        while test "$msgnum" -le "$end"
 109        do
 110                call_merge "$msgnum"
 111                continue_merge
 112        done
 113        finish_rb_merge
 114        return
 115        ;;
 116skip)
 117        read_state
 118        git rerere clear
 119        msgnum=$(($msgnum + 1))
 120        while test "$msgnum" -le "$end"
 121        do
 122                call_merge "$msgnum"
 123                continue_merge
 124        done
 125        finish_rb_merge
 126        return
 127        ;;
 128esac
 129
 130mkdir -p "$state_dir"
 131echo "$onto_name" > "$state_dir/onto_name"
 132write_basic_state
 133
 134msgnum=0
 135for cmt in `git rev-list --reverse --no-merges "$revisions"`
 136do
 137        msgnum=$(($msgnum + 1))
 138        echo "$cmt" > "$state_dir/cmt.$msgnum"
 139done
 140
 141echo 1 >"$state_dir/msgnum"
 142echo $msgnum >"$state_dir/end"
 143
 144end=$msgnum
 145msgnum=1
 146
 147while test "$msgnum" -le "$end"
 148do
 149        call_merge "$msgnum"
 150        continue_merge
 151done
 152
 153finish_rb_merge