run-command: add hint when a hook is ignored

diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 62c8cf0ebf3f2ba063945fc44714a9da29b599ef..f5fa4fd75af26a66cd1b2c0d493116704bc16dd5 100644 (file)
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -12,6 +12,7 @@
 #include "streaming.h"
 #include "tree-walk.h"
 #include "sha1-array.h"
+#include "packfile.h"
 
 struct batch_options {
        int enabled;
@@ -96,7 +97,7 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
                return !has_object_file(&oid);
 
        case 'w':
-               if (!path[0])
+               if (!path)
                        die("git cat-file --filters %s: <object> must be "
                            "<sha1:path>", obj_name);
 
@@ -106,12 +107,13 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
                break;
 
        case 'c':
-               if (!path[0])
+               if (!path)
                        die("git cat-file --textconv %s: <object> must be <sha1:path>",
                            obj_name);
 
                if (textconv_object(path, obj_context.mode, &oid, 1, &buf, &size))
                        break;
+               /* else fallthrough */
 
        case 'p':
                type = sha1_object_info(oid.hash, NULL);