Added cmdline arguments + output file flag (#6)

include/carbon_junit.h

@@ -35,7 +35,7 @@ typedef struct {
   unsigned char has_failed;
 } carbon_junit_testcase;
 
-void carbon_junit_output(carbon_junit_testsuite *junit_ts, carbon_junit_testcase *junit_tcs);
+void carbon_junit_output(carbon_junit_testsuite *junit_ts, carbon_junit_testcase *junit_tcs, const char *out_filename);
 
 #endif  // CARBON_JUNIT_H_
 

include/carbon_test_manager.h

@@ -38,6 +38,11 @@ typedef struct {
   size_t n;
 } Suite;
 
+typedef struct {
+  char *output;
+} CmdArgs;
+
+void carbon_test_manager_argparse(int argc, char **argv);
 Suite carbon_test_manager_spawn(void);
 Test *carbon_test_manager_alloc(Suite *s);
 void carbon_test_manager_register_s(Suite *s, TestFunc test_func, char *name);

src/carbon_junit.c

@@ -28,10 +28,11 @@
 #define XML_OUT_FILENAME "carbon_results.xml"
 #define ISO_8601_FMT     "%Y-%m-%dT%H:%M:%S%z"
 
-void carbon_junit_output(carbon_junit_testsuite *junit_ts, carbon_junit_testcase *junit_tcs) {
-  FILE *fd = fopen(XML_OUT_FILENAME, "w");
+void carbon_junit_output(carbon_junit_testsuite *junit_ts, carbon_junit_testcase *junit_tcs, const char *out_filename) {
+  if (!out_filename) out_filename = XML_OUT_FILENAME;
+  FILE *fd = fopen(out_filename, "w");
   if (!fd) {
-    CARBON_ERROR("[ERROR]: carbon_junit_output :: unable to open file (`carbon_results.xml`)\n");
+    CARBON_ERROR("[ERROR]: carbon_junit_output :: unable to open file (`%s`)\n", out_filename);
     return;
   }
   time_t t = time(0);

src/carbon_test_manager.c

@@ -27,6 +27,42 @@
 #include <stdlib.h>
 
 static Suite test_suite = {0};
+static CmdArgs cmd_args = {0};
+
+static const char * const help_msg = "usage: %s [OPTION]\n"
+  "Options:\n"
+  "  -o, --output     output JUnit XML test results to specific file (default: `carbon_results.xml`)\n"
+  "  -h, --help       display this help and exit\n"
+  "  -v, --version    output version information and exit\n\n"
+  "Report bugs to: <https://github.com/sparky-game/carbon/issues>\n"
+  "BSD Carbon home page: <https://github.com/sparky-game/carbon>\n";
+
+static const char * const version_msg = "BSD Carbon %s\n"
+  "Copyright (C) 2024 Wasym A. Alonso\n"
+  "License MIT: <https://opensource.org/license/MIT>.\n"
+  "This is free software: you are free to change and redistribute it.\n"
+  "There is NO WARRANTY, to the extent permitted by law.\n\n"
+  "Written by Wasym A. Alonso\n";
+
+void carbon_test_manager_argparse(int argc, char **argv) {
+  if (argc == 1) return;
+  if (argc == 3 && (!strcmp(argv[1], "-o") || !strcmp(argv[1], "--output"))) {
+    cmd_args.output = argv[2];
+    return;
+  }
+  if (argc == 2 && (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))) {
+    CARBON_INFO(help_msg, argv[0]);
+    exit(0);
+  }
+  if (argc == 2 && (!strcmp(argv[1], "-v") || !strcmp(argv[1], "--version"))) {
+    CARBON_INFO(version_msg, CARBON_VERSION);
+    exit(0);
+  }
+  else {
+    CARBON_ERROR("[ERROR]: unrecognized option\nTry '%s --help' for more information.\n", argv[0]);
+    exit(1);
+  }
+}
 
 Suite carbon_test_manager_spawn(void) {
   return (Suite) {0};
@@ -128,7 +164,7 @@ unsigned char carbon_test_manager_run(void) {
                                          total_time_micro);
     else CARBON_INFO(CARBON_COLOR_GREEN "=========== %zu passed in %.2fs ===========" CARBON_COLOR_RESET "\n", passed, total_time);
   }
-  carbon_junit_output(&junit_testsuite_info, junit_testcase_infos);
+  carbon_junit_output(&junit_testsuite_info, junit_testcase_infos, cmd_args.output);
   carbon_test_manager_cleanup();
   return status;
 }

test/src/carbon.c

@@ -24,7 +24,8 @@
 #include <carbon_should_test.h>
 #include <carbon_test_manager_test.h>
 
-int main(void) {
+int main(int argc, char **argv) {
+  carbon_test_manager_argparse(argc, argv);
   carbon_should_test_register();
   carbon_test_manager_test_register();
   return carbon_test_manager_run();