core.logallrefupdates create new log file only for branch heads.

diff --git a/git-branch.sh b/git-branch.sh
index e0501ec23f5c40134af0e6211cf1ba28e69e1d5b..4379a07210cf30c5d6e5abdb36722985983edb46 100755 (executable)
--- a/git-branch.sh
+++ b/git-branch.sh
@@ -21,7 +21,7 @@ delete_branch () {
        ,,)
            die "What branch are you on anyway?" ;;
        esac
-       branch=$(cat "$GIT_DIR/refs/heads/$branch_name") &&
+       branch=$(git-show-ref --verify --hash -- "refs/heads/$branch_name") &&
            branch=$(git-rev-parse --verify "$branch^0") ||
                die "Seriously, what branch are you talking about?"
        case "$option" in
@@ -42,8 +42,7 @@ If you are sure you want to delete it, run 'git branch -D $branch_name'."
            esac
            ;;
        esac
-       rm -f "$GIT_DIR/logs/refs/heads/$branch_name"
-       rm -f "$GIT_DIR/refs/heads/$branch_name"
+       git update-ref -d "refs/heads/$branch_name" "$branch"
        echo "Deleted branch $branch_name."
     done
     exit 0
@@ -112,7 +111,8 @@ rev=$(git-rev-parse --verify "$head") || exit
 git-check-ref-format "heads/$branchname" ||
        die "we do not like '$branchname' as a branch name."
 
-if [ -e "$GIT_DIR/refs/heads/$branchname" ]
+prev=''
+if git-show-ref --verify --quiet -- "refs/heads/$branchname"
 then
        if test '' = "$force"
        then
@@ -121,10 +121,11 @@ then
        then
                die "cannot force-update the current branch."
        fi
+       prev=`git rev-parse --verify "refs/heads/$branchname"`
 fi
 if test "$create_log" = 'yes'
 then
        mkdir -p $(dirname "$GIT_DIR/logs/refs/heads/$branchname")
        touch "$GIT_DIR/logs/refs/heads/$branchname"
 fi
-git update-ref -m "branch: Created from $head" "refs/heads/$branchname" $rev
+git update-ref -m "branch: Created from $head" "refs/heads/$branchname" "$rev" "$prev"