Merge pull request libgit2#5626 from csware/parse_bool

boolean config parsing fails in some cases with mapped values

Author: ethomson

src/config.c

@@ -1227,9 +1227,6 @@ int git_config_lookup_map_value(
 {
 	size_t i;
 
-	if (!value)
-		goto fail_parse;
-
 	for (i = 0; i < map_n; ++i) {
 		const git_configmap *m = maps + i;
 
@@ -1238,7 +1235,7 @@ int git_config_lookup_map_value(
 		case GIT_CONFIGMAP_TRUE: {
 			int bool_val;
 
-			if (git__parse_bool(&bool_val, value) == 0 &&
+			if (git_config_parse_bool(&bool_val, value) == 0 &&
 				bool_val == (int)m->type) {
 				*out = m->map_value;
 				return 0;
@@ -1252,15 +1249,14 @@ int git_config_lookup_map_value(
 			break;
 
 		case GIT_CONFIGMAP_STRING:
-			if (strcasecmp(value, m->str_match) == 0) {
+			if (value && strcasecmp(value, m->str_match) == 0) {
 				*out = m->map_value;
 				return 0;
 			}
 			break;
 		}
 	}
 
-fail_parse:
 	git_error_set(GIT_ERROR_CONFIG, "failed to map '%s'", value);
 	return -1;
 }

tests/config/read.c

@@ -928,3 +928,79 @@ void test_config_read__nosection(void)
 	git_buf_dispose(&buf);
 	git_config_free(cfg);
 }
+
+enum {
+	MAP_TRUE = 0,
+	MAP_FALSE = 1,
+	MAP_ALWAYS = 2
+};
+
+static git_configmap _test_map1[] = {
+	{GIT_CONFIGMAP_STRING, "always", MAP_ALWAYS},
+	{GIT_CONFIGMAP_FALSE, NULL, MAP_FALSE},
+	{GIT_CONFIGMAP_TRUE, NULL, MAP_TRUE},
+};
+
+static git_configmap _test_map2[] = {
+	{GIT_CONFIGMAP_INT32, NULL, 0},
+};
+
+void test_config_read__get_mapped(void)
+{
+	git_config *cfg;
+	int val;
+	int known_good;
+
+	cl_set_cleanup(&clean_test_config, NULL);
+	cl_git_mkfile("./testconfig", "[header]\n"
+								  "  key1 = 1\n"
+								  "  key2 = true\n"
+								  "  key3\n"
+								  "  key4 = always\n"
+								  "  key5 = false\n"
+								  "  key6 = 0\n"
+								  "  key7 = never\n"
+								  "  key8 = On\n"
+								  "  key9 = off\n");
+	cl_git_pass(git_config_open_ondisk(&cfg, "./testconfig"));
+
+	// check parsing bool and string
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key1", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_TRUE);
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key2", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_TRUE);
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key3", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_TRUE);
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key8", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_TRUE);
+
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key4", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_ALWAYS);
+
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key5", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_FALSE);
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key6", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_FALSE);
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key9", _test_map1, ARRAY_SIZE(_test_map1)));
+	cl_assert_equal_i(val, MAP_FALSE);
+
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key7", _test_map1, ARRAY_SIZE(_test_map1)));
+
+	// check parsing int values
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key1", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_pass(git_config_get_int32(&known_good, cfg, "header.key1"));
+	cl_assert_equal_i(val, known_good);
+	cl_git_pass(git_config_get_mapped(&val, cfg, "header.key6", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_pass(git_config_get_int32(&known_good, cfg, "header.key6"));
+	cl_assert_equal_i(val, known_good);
+
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key2", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key3", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key4", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key5", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key7", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key8", _test_map2, ARRAY_SIZE(_test_map2)));
+	cl_git_fail(git_config_get_mapped(&val, cfg, "header.key9", _test_map2, ARRAY_SIZE(_test_map2)));
+
+	git_config_free(cfg);
+}