git-svn: reintroduce using a single get_log() to fetch

diff --git a/git-rebase.sh b/git-rebase.sh
index 2b4f3477fa941afe4f6450f74f6f8cf43a7567c0..b51d19d12e6d5a108f13c4ec60c5f5a6e560ef47 100755 (executable)
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -27,7 +27,12 @@ Example:       git-rebase master~1 topic
        /                   -->           /
   D---E---F---G master          D---E---F---G master
 '
+
+SUBDIRECTORY_OK=Yes
 . git-sh-setup
+set_reflog_action rebase
+require_work_tree
+cd_to_toplevel
 
 RESOLVEMSG="
 When you have resolved this problem run \"git rebase --continue\".
@@ -40,6 +45,7 @@ do_merge=
 dotest=$GIT_DIR/.dotest-merge
 prec=4
 verbose=
+git_am_opt=
 
 continue_merge () {
        test -n "$prev_head" || die "prev_head must be defined"
@@ -80,10 +86,18 @@ continue_merge () {
 call_merge () {
        cmt="$(cat $dotest/cmt.$1)"
        echo "$cmt" > "$dotest/current"
-       git-merge-$strategy "$cmt^" -- HEAD "$cmt"
+       hd=$(git-rev-parse --verify HEAD)
+       cmt_name=$(git-symbolic-ref HEAD)
+       msgnum=$(cat $dotest/msgnum)
+       end=$(cat $dotest/end)
+       eval GITHEAD_$cmt='"${cmt_name##refs/heads/}~$(($end - $msgnum))"'
+       eval GITHEAD_$hd='"$(cat $dotest/onto_name)"'
+       export GITHEAD_$cmt GITHEAD_$hd
+       git-merge-$strategy "$cmt^" -- "$hd" "$cmt"
        rv=$?
        case "$rv" in
        0)
+               unset GITHEAD_$cmt GITHEAD_$hd
                return
                ;;
        1)
@@ -132,8 +146,7 @@ do
                        finish_rb_merge
                        exit
                fi
-               git am --resolved --3way --resolvemsg="$RESOLVEMSG" \
-                       --reflog-action=rebase
+               git am --resolved --3way --resolvemsg="$RESOLVEMSG"
                exit
                ;;
        --skip)
@@ -156,8 +169,7 @@ do
                        finish_rb_merge
                        exit
                fi
-               git am -3 --skip --resolvemsg="$RESOLVEMSG" \
-                       --reflog-action=rebase
+               git am -3 --skip --resolvemsg="$RESOLVEMSG"
                exit
                ;;
        --abort)
@@ -202,6 +214,10 @@ do
        -v|--verbose)
                verbose=t
                ;;
+       -C*)
+               git_am_opt=$1
+               shift
+               ;;
        -*)
                usage
                ;;
@@ -238,7 +254,8 @@ fi
 git-update-index --refresh || exit
 diff=$(git-diff-index --cached --name-status -r HEAD)
 case "$diff" in
-?*)    echo "$diff"
+?*)    echo "cannot rebase: your index is not up-to-date"
+       echo "$diff"
        exit 1
        ;;
 esac
@@ -264,8 +281,12 @@ case "$#" in
        git-checkout "$2" || usage
        ;;
 *)
-       branch_name=`git symbolic-ref HEAD` || die "No current branch"
-       branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
+       if branch_name=`git symbolic-ref -q HEAD`
+       then
+               branch_name=`expr "z$branch_name" : 'zrefs/heads/\(.*\)'`
+       else
+               branch_name=HEAD ;# detached
+       fi
        ;;
 esac
 branch=$(git-rev-parse --verify "${branch_name}^0") || exit
@@ -292,6 +313,7 @@ then
 fi
 
 # Rewind the head to "$onto"; this saves our current head in ORIG_HEAD.
+echo "First, rewinding head to replay your work on top of it..."
 git-reset --hard "$onto"
 
 # If the $onto is a proper descendant of the tip of the branch, then
@@ -305,8 +327,7 @@ fi
 if test -z "$do_merge"
 then
        git-format-patch -k --stdout --full-index --ignore-if-in-upstream "$upstream"..ORIG_HEAD |
-       git am --binary -3 -k --resolvemsg="$RESOLVEMSG" \
-               --reflog-action=rebase
+       git am $git_am_opt --binary -3 -k --resolvemsg="$RESOLVEMSG"
        exit $?
 fi
 
@@ -315,6 +336,7 @@ fi
 
 mkdir -p "$dotest"
 echo "$onto" > "$dotest/onto"
+echo "$onto_name" > "$dotest/onto_name"
 prev_head=`git-rev-parse HEAD^0`
 echo "$prev_head" > "$dotest/prev_head"