git-commit: fix coding style.
[gitweb.git] / git-checkout.sh
index 360aabf9e35121ef83128d6731df189839efbe05..dd477245fb3703402b950cbc1378b35ce379d631 100755 (executable)
@@ -4,8 +4,8 @@ USAGE='[-f] [-b <new_branch>] [-m] [<branch>] [<paths>...]'
 SUBDIRECTORY_OK=Sometimes
 . git-sh-setup
 
-old=$(git-rev-parse HEAD)
 old_name=HEAD
+old=$(git-rev-parse --verify $old_name 2>/dev/null)
 new=
 new_name=
 force=
@@ -67,6 +67,10 @@ while [ "$#" != "0" ]; do
                        set x "$arg" "$@"
                        shift
                fi
+               case "$1" in
+               --)
+                       shift ;;
+               esac
                break
                ;;
     esac
@@ -135,10 +139,16 @@ fi
        die "git checkout: to checkout the requested commit you need to specify 
               a name for a new branch which is created and switched to"
 
+if [ "X$old" = X ]
+then
+       echo "warning: You do not appear to currently be on a branch." >&2
+       echo "warning: Forcing checkout of $new_name." >&2
+       force=1
+fi
+
 if [ "$force" ]
 then
-    git-read-tree --reset $new &&
-       git-checkout-index -q -f -u -a
+    git-read-tree --reset -u $new
 else
     git-update-index --refresh >/dev/null
     merge_error=$(git-read-tree -m -u $old $new 2>&1) || (
@@ -151,8 +161,7 @@ else
        # Match the index to the working tree, and do a three-way.
        git diff-files --name-only | git update-index --remove --stdin &&
        work=`git write-tree` &&
-       git read-tree --reset $new &&
-       git checkout-index -f -u -q -a &&
+       git read-tree --reset -u $new &&
        git read-tree -m -u --aggressive $old $new $work || exit
 
        if result=`git write-tree 2>/dev/null`
@@ -197,8 +206,8 @@ fi
 if [ "$?" -eq 0 ]; then
        if [ "$newbranch" ]; then
                if [ "$newbranch_log" ]; then
-                       mkdir -p $(dirname "$GIT_DIR/logs/refs/heads/$branchname")
-                       touch "$GIT_DIR/logs/refs/heads/$branchname"
+                       mkdir -p $(dirname "$GIT_DIR/logs/refs/heads/$newbranch")
+                       touch "$GIT_DIR/logs/refs/heads/$newbranch"
                fi
                git-update-ref -m "checkout: Created from $new_name" "refs/heads/$newbranch" $new || exit
                branch="$newbranch"