test: add --help to the test suite runner

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/test/litest.c b/test/litest.c
index c5c72dce3c8a16216cee15d4bb4cac3835d5fdb5..2c41b22a87f329caa12eb1624510eae1afd11966 100644 (file)
--- a/test/litest.c
+++ b/test/litest.c
@@ -3848,6 +3848,7 @@ litest_parse_argv(int argc, char **argv)
                { "jobs", 1, 0, OPT_JOBS },
                { "list", 0, 0, OPT_LIST },
                { "verbose", 0, 0, OPT_VERBOSE },
+               { "help", 0, 0, 'h'},
                { 0, 0, 0, 0}
        };
 
@@ -3868,6 +3869,30 @@ litest_parse_argv(int argc, char **argv)
                if (c == -1)
                        break;
                switch(c) {
+               default:
+               case 'h':
+                       printf("Usage: %s [--verbose] [--jobs] [--filter-...]\n"
+                              "\n"
+                              "Options:\n"
+                              "    --filter-test=.... \n"
+                              "          Glob to filter on test names\n"
+                              "    --filter-device=.... \n"
+                              "          Glob to filter on device names\n"
+                              "    --filter-group=.... \n"
+                              "          Glob to filter on test groups\n"
+                              "    --filter-deviceless=.... \n"
+                              "          Glob to filter on tests that do not create test devices\n"
+                              "    --verbose\n"
+                              "          Enable verbose output\n"
+                              "    --jobs 8\n"
+                              "          Number of parallel test suites to run (default: 8)\n"
+                              "    --list\n"
+                              "          List all tests\n"
+                              "\n"
+                              "See the libinput-test-suite(1) man page for details.\n",
+                              program_invocation_short_name);
+                       exit(c != 'h');
+                       break;
                case OPT_FILTER_TEST:
                        filter_test = optarg;
                        if (want_jobs == JOBS_DEFAULT)
@@ -3896,9 +3921,6 @@ litest_parse_argv(int argc, char **argv)
                case OPT_FILTER_DEVICELESS:
                        run_deviceless = true;
                        break;
-               default:
-                       fprintf(stderr, "usage: %s [--list]\n", argv[0]);
-                       return LITEST_MODE_ERROR;
                }
        }