X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-bisect.sh;h=03df1433ef12014584f23f16e65124c219c2f466;hb=ce0bd64299ae148ef61a63edcac635de41254cb5;hp=2455f00ee58384ddc121553e747673db1366c43e;hpb=b3cfd939c330211c9812f814094aa1dbe9531bdc;p=git.git

diff --git a/git-bisect.sh b/git-bisect.sh
index 2455f00e..03df1433 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -1,9 +1,7 @@
 #!/bin/sh
-. git-sh-setup
 
-usage() {
-    echo >&2 'usage: git bisect [start|bad|good|next|reset|visualize]
-git bisect start		reset bisect state and start bisection.
+USAGE='[start|bad|good|next|reset|visualize]'
+LONG_USAGE='git bisect start [<pathspec>]	reset bisect state and start bisection.
 git bisect bad [<rev>]		mark <rev> a known-bad revision.
 git bisect good [<rev>...]	mark <rev>... known-good revisions.
 git bisect next			find next bisection to test and check it out.
@@ -11,7 +9,17 @@ git bisect reset [<branch>]	finish bisection search and go back to branch.
 git bisect visualize            show bisect status in gitk.
 git bisect replay <logfile>	replay bisection log
 git bisect log			show bisect log.'
-    exit 1
+
+. git-sh-setup
+
+sq() {
+	perl -e '
+		for (@ARGV) {
+			s/'\''/'\'\\\\\'\''/g;
+			print " '\''$_'\''";
+		}
+		print "\n";
+	' "$@"
 }
 
 bisect_autostart() {
@@ -41,9 +49,16 @@ bisect_start() {
 	die "Bad HEAD - I need a symbolic ref"
 	case "$head" in
 	refs/heads/bisect*)
-		git checkout master || exit
+		if [ -s "$GIT_DIR/head-name" ]; then
+		    branch=`cat "$GIT_DIR/head-name"`
+		else
+		    branch=master
+	        fi
+		git checkout $branch || exit
 		;;
 	refs/heads/*)
+		[ -s "$GIT_DIR/head-name" ] && die "won't bisect on seeked tree"
+		echo "$head" | sed 's#^refs/heads/##' >"$GIT_DIR/head-name"
 		;;
 	*)
 		die "Bad HEAD - strange symbolic ref"
@@ -56,8 +71,11 @@ bisect_start() {
 	rm -f "$GIT_DIR/refs/heads/bisect"
 	rm -rf "$GIT_DIR/refs/bisect/"
 	mkdir "$GIT_DIR/refs/bisect"
-	echo "git-bisect start $@" >"$GIT_DIR/BISECT_LOG"
-	echo "$@" > "$GIT_DIR/BISECT_NAMES"
+	{
+	    printf "git-bisect start"
+	    sq "$@"
+	} >"$GIT_DIR/BISECT_LOG"
+	sq "$@" >"$GIT_DIR/BISECT_NAMES"
 }
 
 bisect_bad() {
@@ -142,12 +160,17 @@ bisect_next() {
 
 bisect_visualize() {
 	bisect_next_check fail
-	gitk bisect/bad --not `cd "$GIT_DIR/refs" && echo bisect/good-*` -- $(cat $GIT_DIR/BISECT_NAMES)
+	not=`cd "$GIT_DIR/refs" && echo bisect/good-*`
+	eval gitk bisect/bad --not $not -- $(cat "$GIT_DIR/BISECT_NAMES")
 }
 
 bisect_reset() {
 	case "$#" in
-	0) branch=master ;;
+	0) if [ -s "$GIT_DIR/head-name" ]; then
+	       branch=`cat "$GIT_DIR/head-name"`
+	   else
+	       branch=master
+	   fi ;;
 	1) test -f "$GIT_DIR/refs/heads/$1" || {
 	       echo >&2 "$1 does not seem to be a valid branch"
 	       exit 1
@@ -158,8 +181,9 @@ bisect_reset() {
 	esac
 	git checkout "$branch" &&
 	rm -fr "$GIT_DIR/refs/bisect"
-	rm -f "$GIT_DIR/refs/heads/bisect"
+	rm -f "$GIT_DIR/refs/heads/bisect" "$GIT_DIR/head-name"
 	rm -f "$GIT_DIR/BISECT_LOG"
+	rm -f "$GIT_DIR/BISECT_NAMES"
 }
 
 bisect_replay () {
@@ -173,7 +197,8 @@ bisect_replay () {
 		test "$bisect" = "git-bisect" || continue
 		case "$command" in
 		start)
-			bisect_start
+			cmd="bisect_start $rev"
+			eval "$cmd"
 			;;
 		good)
 			echo "$rev" >"$GIT_DIR/refs/bisect/good-$rev"