[PATCH v2 try2 04/14] grep: add --staged option

[Felipe Contreras <felipe.contreras@gmail.com>]

Synonym for --cached.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
---
 Documentation/git-grep.txt | 5 ++++-
 builtin/grep.c             | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index f837334..6ed84d7 100644
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -25,7 +25,7 @@ SYNOPSIS
 	   [-W | --function-context]
 	   [-f <file>] [-e] <pattern>
 	   [--and|--or|--not|(|)|-e <pattern>...]
-	   [ [--[no-]exclude-standard] [--cached | --no-index | --untracked] | <tree>...]
+	   [ [--[no-]exclude-standard] [--cached | --staged | --no-index | --untracked] | <tree>...]
 	   [--] [<pathspec>...]
 
 DESCRIPTION
@@ -60,6 +60,9 @@ OPTIONS
 	Instead of searching tracked files in the working tree, search
 	blobs registered in the index file.
 
+--staged::
+	Synonym for `--cached`.
+
 --no-index::
 	Search files in the current directory that is not managed by Git.
 
diff --git a/builtin/grep.c b/builtin/grep.c
index 69ac2d8..dc2edaf 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -638,6 +638,8 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 	struct option options[] = {
 		OPT_BOOL(0, "cached", &cached,
 			N_("search in index instead of in the work tree")),
+		OPT_BOOL(0, "staged", &cached,
+			N_("search in index instead of in the work tree")),
 		OPT_NEGBIT(0, "no-index", &use_index,
 			 N_("find in contents not managed by git"), 1),
 		OPT_BOOL(0, "untracked", &untracked,
-- 
1.9.2+fc1.2.gfbaae8c