[PATCH 09/14] grep: skip files outside sparse checkout area

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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
 Documentation/git-grep.txt |    4 +++-
 builtin-grep.c             |    7 ++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index fa4d133..ee359c9 100644
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -24,7 +24,9 @@ SYNOPSIS
 DESCRIPTION
 -----------
 Look for specified patterns in the working tree files, blobs
-registered in the index file, or given tree objects.
+registered in the index file, or given tree objects. By default
+it will search in the working tree files. When in sparse checkout
+mode, it only searches checked-out files.
 
 
 OPTIONS
diff --git a/builtin-grep.c b/builtin-grep.c
index 3a51662..d5507d7 100644
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -343,6 +343,8 @@ static int external_grep(struct grep_opt *opt, const char **paths, int cached)
 			continue;
 		if (!pathspec_matches(paths, ce->name))
 			continue;
+		if (ce_no_checkout(ce))
+			continue;
 		name = ce->name;
 		if (name[0] == '-') {
 			int len = ce_namelen(ce);
@@ -404,8 +406,11 @@ static int grep_cache(struct grep_opt *opt, const char **paths, int cached)
 				continue;
 			hit |= grep_sha1(opt, ce->sha1, ce->name, 0);
 		}
-		else
+		else {
+			if (ce_no_checkout(ce))
+				continue;
 			hit |= grep_file(opt, ce->name);
+		}
 		if (ce_stage(ce)) {
 			do {
 				nr++;
-- 
1.6.0.96.g2fad1.dirty

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