[PATCH] bash: complete full refs

["SZEDER Gábor" <szeder@ira.uka.de>]

Sometimes it's handy to complete full refs, e.g. the user has some
refs outside of refs/{heads,remotes,tags} or the user wants to
complete some git command's special refs (like 'git show
refs/bisect/bad').

To do that, we check whether the ref to be completed starts with
'refs/' or is 'refs' (to reduce the risk of matching 'refs-').  If it
does, then we offer full refs for completion; otherwise everything
works as usual.

This way the impact on the common case is fairly small (hopefully not
many users have branches or tags starting with 'refs'), and in the
special case the cost of typing out 'refs' is bearable.

While at it, also remove the unused 'cmd' variable from '__git_refs'.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
---

On Thu, Nov 27, 2008 at 01:29:38PM -0800, Shawn O. Pearce wrote:
> I wonder if the pattern shouldn't be:
> 
> 	refs|refs/*)
> 
> to reduce the risk of matching "refs-" and trying to do a full ref
> match instead of a short ref match.
Good point.  Adjusted the code and commit message accordingly.


 contrib/completion/git-completion.bash |   19 +++++++++++++++----
 1 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 0ee071b..244ed41 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -188,11 +188,22 @@ __git_tags ()
 
 __git_refs ()
 {
-	local cmd i is_hash=y dir="$(__gitdir "$1")"
+	local i is_hash=y dir="$(__gitdir "$1")"
+	local cur="${COMP_WORDS[COMP_CWORD]}" format refs
 	if [ -d "$dir" ]; then
-		if [ -e "$dir/HEAD" ]; then echo HEAD; fi
-		git --git-dir="$dir" for-each-ref --format='%(refname:short)' \
-			refs/tags refs/heads refs/remotes
+		case "$cur" in
+		refs|refs/*)
+			format="refname"
+			refs="${cur%/*}"
+			;;
+		*)
+			if [ -e "$dir/HEAD" ]; then echo HEAD; fi
+			format="refname:short"
+			refs="refs/tags refs/heads refs/remotes"
+			;;
+		esac
+		git --git-dir="$dir" for-each-ref --format="%($format)" \
+			$refs
 		return
 	fi
 	for i in $(git ls-remote "$dir" 2>/dev/null); do
-- 
1.6.0.4.814.gfe502