X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=git-rebase.sh;h=1d96f32685cdc51c89c63516519e8b544ab818af;hb=7da3bf372cfcd25ea44164afb90c306836b62e23;hp=25530dfdc5ba3b88ba9f45393d3aace8faa89472;hpb=aed450925184a41adbe66bdaaefc9bf76fbfdecd;p=git.git

diff --git a/git-rebase.sh b/git-rebase.sh
index 25530dfdc..1d96f3268 100755
--- 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 "$prev_head" || die "prev_head must be defined"
@@ -53,7 +59,7 @@ continue_merge () {
 		die "$RESOLVEMSG"
 	fi
 
-	if test -n "`git-diff-index HEAD`"
+	if ! git-diff-index --quiet HEAD
 	then
 		if ! git-commit -C "`cat $dotest/current`"
 		then
@@ -80,10 +86,18 @@ continue_merge () {
 call_merge () {
 	cmt="$(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_$hd
 		return
 		;;
 	1)
@@ -110,13 +124,11 @@ while case "$#" in 0) break ;; esac
 do
 	case "$1" in
 	--continue)
-		diff=$(git-diff-files)
-		case "$diff" in
-		?*)	echo "You must edit all merge conflicts and then"
+		git-diff-files --quiet || {
+			echo "You must edit all merge conflicts and then"
 			echo "mark them as resolved using git update-index"
 			exit 1
-			;;
-		esac
+		}
 		if test -d "$dotest"
 		then
 			prev_head="`cat $dotest/prev_head`"
@@ -132,13 +144,16 @@ do
 			finish_rb_merge
 			exit
 		fi
-		git am --resolved --3way --resolvemsg="$RESOLVEMSG" \
-			--reflog-action=rebase
+		git am --resolved --3way --resolvemsg="$RESOLVEMSG"
 		exit
 		;;
 	--skip)
 		if test -d "$dotest"
 		then
+			if test -d "$GIT_DIR/rr-cache"
+			then
+				git-rerere clear
+			fi
 			prev_head="`cat $dotest/prev_head`"
 			end="`cat $dotest/end`"
 			msgnum="`cat $dotest/msgnum`"
@@ -152,11 +167,14 @@ do
 			finish_rb_merge
 			exit
 		fi
-		git am -3 --skip --resolvemsg="$RESOLVEMSG" \
-			--reflog-action=rebase
+		git am -3 --skip --resolvemsg="$RESOLVEMSG"
 		exit
 		;;
 	--abort)
+		if test -d "$GIT_DIR/rr-cache"
+		then
+			git-rerere clear
+		fi
 		if test -d "$dotest"
 		then
 			rm -r "$dotest"
@@ -194,6 +212,10 @@ do
 	-v|--verbose)
 		verbose=t
 		;;
+	-C*)
+		git_am_opt=$1
+		shift
+		;;
 	-*)
 		usage
 		;;
@@ -230,7 +252,8 @@ fi
 git-update-index --refresh || exit
 diff=$(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
@@ -240,6 +263,10 @@ upstream_name="$1"
 upstream=`git rev-parse --verify "${upstream_name}^0"` ||
     die "invalid upstream $upstream_name"
 
+# Make sure the branch to rebase onto is valid.
+onto_name=${newbase-"$upstream_name"}
+onto=$(git-rev-parse --verify "${onto_name}^0") || exit
+
 # If a hook exists, give it a chance to interrupt
 if test -x "$GIT_DIR/hooks/pre-rebase"
 then
@@ -256,16 +283,16 @@ case "$#" 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
 
-# Make sure the branch to rebase onto is valid.
-onto_name=${newbase-"$upstream_name"}
-onto=$(git-rev-parse --verify "${onto_name}^0") || exit
-
 # Now we are rebasing commits $upstream..$branch on top of $onto
 
 # Check if we are already based on $onto, but this should be
@@ -284,6 +311,7 @@ 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 $onto is a proper descendant of the tip of the branch, then
@@ -297,8 +325,7 @@ fi
 if test -z "$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
 
@@ -307,6 +334,7 @@ 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"