Make "git rev-list" be a builtin

diff --git a/git-branch.sh b/git-branch.sh
index 4cd5da16f74cee6e277d33bce74242496eca94fe..134e68cf7f0389d73af000c4303c4dda27f89d57 100755 (executable)
--- a/git-branch.sh
+++ b/git-branch.sh
@@ -1,19 +1,14 @@
 #!/bin/sh
 
-. git-sh-setup
-
-usage () {
-    echo >&2 "usage: $(basename $0)"' [-d <branch>] | [[-f] <branch> [start-point]]
-
-If no arguments, show available branches and mark current branch with a star.
+USAGE='[(-d | -D) <branchname>] | [[-f] <branchname> [<start-point>]] | -r'
+LONG_USAGE='If no arguments, show available branches and mark current branch with a star.
 If one argument, create a new branch <branchname> based off of current HEAD.
-If two arguments, create a new branch <branchname> based off of <start-point>.
-'
-    exit 1
-}
+If two arguments, create a new branch <branchname> based off of <start-point>.'
+
+SUBDIRECTORY_OK='Yes'
+. git-sh-setup
 
-headref=$(GIT_DIR="$GIT_DIR" git-symbolic-ref HEAD |
-       sed -e 's|^refs/heads/||')
+headref=$(git-symbolic-ref HEAD | sed -e 's|^refs/heads/||')
 
 delete_branch () {
     option="$1"
@@ -37,11 +32,11 @@ delete_branch () {
            case " $mbs " in
            *' '$branch' '*)
                # the merge base of branch and HEAD contains branch --
-               # which means that the HEAD contains everything in the HEAD.
+               # which means that the HEAD contains everything in both.
                ;;
            *)
                echo >&2 "The branch '$branch_name' is not a strict subset of your current HEAD.
-    If you are sure you want to delete it, run 'git branch -D $branch_name'."
+If you are sure you want to delete it, run 'git branch -D $branch_name'."
                exit 1
                ;;
            esac
@@ -53,6 +48,12 @@ delete_branch () {
     exit 0
 }
 
+ls_remote_branches () {
+    git-rev-parse --symbolic --all |
+    sed -ne 's|^refs/\(remotes/\)|\1|p' |
+    sort
+}
+
 force=
 while case "$#,$1" in 0,*) break ;; *,-*) ;; *) break ;; esac
 do
@@ -61,6 +62,10 @@ do
                delete_branch "$@"
                exit
                ;;
+       -r)
+               ls_remote_branches
+               exit
+               ;;
        -f)
                force="$1"
                ;;
@@ -77,8 +82,7 @@ done
 
 case "$#" in
 0)
-       git-rev-parse --symbolic --all |
-       sed -ne 's|^refs/heads/||p' |
+       git-rev-parse --symbolic --branches |
        sort |
        while read ref
        do
@@ -114,4 +118,3 @@ then
        fi
 fi
 git update-ref "refs/heads/$branchname" $rev
-