[v13,14/16] ls-tree: detect and error on --name-only --name-status

Commit Message

Teng Long March 21, 2022, 7:33 a.m. UTC

From: Ævar Arnfjörð Bjarmason <[e-mail]>

The --name-only and --name-status options are synonyms, but let's
detect and error if both are provided.

In addition let's add explicit --format tests for the combination of
these various options.

Signed-off-by: Ævar Arnfjörð Bjarmason <[e-mail]>
Signed-off-by: Teng Long <[e-mail]>
---
 builtin/ls-tree.c       | 11 ++++++++++-
 t/t3103-ls-tree-misc.sh | 15 +++++++++------
 2 files changed, 19 insertions(+), 7 deletions(-)

Patch

diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c
index 1aa65cc87f..a271941540 100644
--- a/builtin/ls-tree.c
+++ b/builtin/ls-tree.c
@@ -52,6 +52,7 @@  static const  char * const ls_tree_usage[] = {
 static enum ls_tree_cmdmode {
 	MODE_LONG = 1,
 	MODE_NAME_ONLY,
+	MODE_NAME_STATUS,
 	MODE_OBJECT_ONLY,
 } cmdmode;
 
@@ -301,7 +302,7 @@  int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 		OPT_CMDMODE(0, "name-only", &cmdmode, N_("list only filenames"),
 			    MODE_NAME_ONLY),
 		OPT_CMDMODE(0, "name-status", &cmdmode, N_("list only filenames"),
-			    MODE_NAME_ONLY),
+			    MODE_NAME_STATUS),
 		OPT_CMDMODE(0, "object-only", &cmdmode, N_("list only objects"),
 			    MODE_OBJECT_ONLY),
 		OPT_SET_INT(0, "full-name", &chomp_prefix,
@@ -327,6 +328,14 @@  int cmd_ls_tree(int argc, const char **argv, const char *prefix)
 		ls_tree_prefix = prefix = NULL;
 		chomp_prefix = 0;
 	}
+	/*
+	 * We wanted to detect conflicts between --name-only and
+	 * --name-status, but once we're done with that subsequent
+	 * code should only need to check the primary name.
+	 */
+	if (cmdmode == MODE_NAME_STATUS)
+		cmdmode = MODE_NAME_ONLY;
+
 	/* -d -r should imply -t, but -d by itself should not have to. */
 	if ( (LS_TREE_ONLY|LS_RECURSIVE) ==
 	    ((LS_TREE_ONLY|LS_RECURSIVE) & ls_options))
diff --git a/t/t3103-ls-tree-misc.sh b/t/t3103-ls-tree-misc.sh
index d979c0df5d..7454ebbb00 100755
--- a/t/t3103-ls-tree-misc.sh
+++ b/t/t3103-ls-tree-misc.sh
@@ -24,15 +24,18 @@  test_expect_success 'ls-tree fails with non-zero exit code on broken tree' '
 '
 
 for opts in \
-	"--name-only --long" \
-	"--name-status --long" \
-	"--name-only --object-only" \
+	"--long --name-only" \
+	"--name-only --name-status" \
 	"--name-status --object-only" \
-	"--object-only --long" \
-	"--object-only --format"
+	"--object-only --long" 
 do
 	test_expect_success "usage: incompatible options: $opts" '
 		test_expect_code 129 git ls-tree $opts $tree
-    '
+	'
+
+	one_opt=$(echo "$opts" | cut -d' '  -f1)
+	test_expect_success "usage: incompatible options: $one_opt and --format" '
+		test_expect_code 129 git ls-tree $one_opt --format=fmt $tree
+	'
 done
 test_done