[PATCH 09/25] list-files: add --max-depth, -R and default to --max-depth=0

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/list-files.c  |  9 ++++++++-
 t/t7013-list-files.sh | 40 ++++++++++++++++++++++++++++++++--------
 2 files changed, 40 insertions(+), 9 deletions(-)

diff --git a/builtin/list-files.c b/builtin/list-files.c
index 8913770..4599cf0 100644
--- a/builtin/list-files.c
+++ b/builtin/list-files.c
@@ -28,6 +28,7 @@ static const char *prefix;
 static int prefix_length;
 static int show_tag = -1;
 static unsigned int colopts;
+static int max_depth;
 
 static const char * const ls_usage[] = {
 	N_("git list-files [options] [<pathspec>...]"),
@@ -39,6 +40,11 @@ struct option ls_options[] = {
 	OPT_COLUMN('C', "column", &colopts, N_("show files in columns")),
 	OPT_SET_INT('1', NULL, &colopts,
 		    N_("shortcut for --no-column"), COL_PARSEOPT),
+	{ OPTION_INTEGER, 0, "max-depth", &max_depth, N_("depth"),
+	  N_("descend at most <depth> levels"), PARSE_OPT_NONEG,
+	  NULL, 1 },
+	OPT_SET_INT('R', "recursive", &max_depth,
+		    N_("shortcut for --max-depth=-1"), -1),
 	OPT_END()
 };
 
@@ -178,9 +184,10 @@ int cmd_list_files(int argc, const char **argv, const char *cmd_prefix)
 
 	parse_pathspec(&pathspec, 0,
 		       PATHSPEC_PREFER_CWD |
+		       (max_depth != -1 ? PATHSPEC_MAXDEPTH_VALID : 0) |
 		       PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP,
 		       cmd_prefix, argv);
-	pathspec.max_depth = 0;
+	pathspec.max_depth = max_depth;
 	pathspec.recursive = 1;
 	finalize_colopts(&colopts, -1);
 
diff --git a/t/t7013-list-files.sh b/t/t7013-list-files.sh
index b43245c..89930c7 100755
--- a/t/t7013-list-files.sh
+++ b/t/t7013-list-files.sh
@@ -10,8 +10,8 @@ test_expect_success 'setup' '
 	git add .
 '
 
-test_expect_success 'list-files from index' '
-	git list-files >actual &&
+test_expect_success 'list-files -R from index' '
+	git list-files -R >actual &&
 	cat >expect <<-\EOF &&
 	a
 	b
@@ -23,22 +23,34 @@ test_expect_success 'list-files from index' '
 	test_cmp expect actual
 '
 
+test_expect_success 'list-files from index' '
+	git list-files --max-depth=0 >actual &&
+	cat >expect <<-\EOF &&
+	a
+	b
+	c
+	EOF
+	test_cmp expect actual &&
+	git list-files >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'column output' '
-	COLUMNS=20 git list-files --column=always >actual &&
+	COLUMNS=20 git list-files -R --column=always >actual &&
 	cat >expected <<-\EOF &&
 	a        sa/a
 	b        sa/sb/b
 	c        sc/c
 	EOF
 	test_cmp expected actual &&
-	COLUMNS=20 git -c column.listfiles=always list-files >actual &&
+	COLUMNS=20 git -c column.listfiles=always list-files -R >actual &&
 	cat >expected <<-\EOF &&
 	a        sa/a
 	b        sa/sb/b
 	c        sc/c
 	EOF
 	test_cmp expected actual &&
-	COLUMNS=20 git -c column.listfiles=always list-files -1 >actual &&
+	COLUMNS=20 git -c column.listfiles=always list-files -1R >actual &&
 	cat >expected <<-\EOF &&
 	a
 	b
@@ -51,7 +63,7 @@ test_expect_success 'column output' '
 '
 
 test_expect_success 'list-files selectively from index' '
-	git list-files "*a" >actual &&
+	git list-files -R "*a" >actual &&
 	cat >expect <<-\EOF &&
 	a
 	sa/a
@@ -59,10 +71,22 @@ test_expect_success 'list-files selectively from index' '
 	test_cmp expect actual
 '
 
+test_expect_success '--max-depth' '
+	git list-files --max-depth=1 >actual &&
+	cat >expected <<-\EOF &&
+	a
+	b
+	c
+	sa/a
+	sc/c
+	EOF
+	test_cmp expected actual
+'
+
 test_expect_success 'list-files from subdir ' '
 	(
 	cd sa &&
-	git list-files >actual &&
+	git list-files -R >actual &&
 	cat >expect <<-\EOF &&
 	a
 	sb/b
@@ -74,7 +98,7 @@ test_expect_success 'list-files from subdir ' '
 test_expect_success 'list-files from subdir (2)' '
 	(
 	cd sa &&
-	git list-files ../a sb >actual &&
+	git list-files -R ../a sb >actual &&
 	cat >expect <<-\EOF &&
 	../a
 	sb/b
-- 
2.3.0.rc1.137.g477eb31