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

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