allow json config to contain a list of config files (includes).

src/kernel/jsonconf.c

@@ -636,6 +636,31 @@ static void json_races(cJSON *json) {
     }
 }
 
+static void json_configs(cJSON *json) {
+    cJSON *child;
+    if (json->type != cJSON_Array) {
+        log_error("config is not a json array: %d", json->type);
+        return;
+    }
+    for (child = json->child; child; child = child->next) {
+        cJSON *config;
+        char *data;
+        FILE *F = fopen(child->valuestring, "rt");
+        if (F) {
+            size_t sz;
+            fseek(F, 0, SEEK_END);
+            sz = ftell(F);
+            rewind(F);
+            data = malloc(sz);
+            fread(data, 1, sz, F);
+            fclose(F);
+            config = cJSON_Parse(data);
+            free(data);
+            json_config(config);
+        }
+    }
+}
+
 void json_config(cJSON *json) {
     cJSON *child;
     if (json->type!=cJSON_Object) {
@@ -649,6 +674,9 @@ void json_config(cJSON *json) {
         else if (strcmp(child->string, "items") == 0) {
             json_items(child);
         }
+        else if (strcmp(child->string, "config") == 0) {
+            json_configs(child);
+        }
         else if (strcmp(child->string, "ships") == 0) {
             json_ships(child);
         }

src/kernel/jsonconf.test.c

@@ -228,9 +228,7 @@ static void test_spells(CuTest * tc)
     CuAssertPtrEquals(tc, 0, find_spell("fireball"));
 }
 
-static void test_buildings(CuTest * tc)
+static const char * building_data = "{\"buildings\": { "
-{
-    const char * data = "{\"buildings\": { "
 "\"house\" : { "
 "\"maintenance\" : "
 "{ \"type\" : \"iron\", \"amount\" : 1, \"flags\" : [ \"required\", \"variable\" ] }"
@@ -250,7 +248,9 @@ static void test_buildings(CuTest * tc)
 "]}"
 "}}";
 
-    cJSON *json = cJSON_Parse(data);
+static void test_buildings(CuTest * tc)
+{
+    cJSON *json = cJSON_Parse(building_data);
     const building_type *bt;
 
     test_cleanup();
@@ -292,6 +292,25 @@ static void test_buildings(CuTest * tc)
     test_cleanup();
 }
 
+static void test_configs(CuTest * tc)
+{
+    const char * data = "{\"config\": [ \"test.json\" ] }";
+    FILE *F;
+    cJSON *json = cJSON_Parse(data);
+
+    test_cleanup();
+
+    F = fopen("test.json", "wt");
+    fwrite(building_data, 1, strlen(building_data), F);
+    fclose(F);
+    CuAssertPtrNotNull(tc, json);
+    CuAssertPtrEquals(tc, 0, buildingtypes);
+    json_config(json);
+    CuAssertPtrNotNull(tc, buildingtypes);
+    unlink("test.json");
+    test_cleanup();
+}
+
 static void test_terrains(CuTest * tc)
 {
     const char * data = "{\"terrains\": { \"plain\" : { \"flags\" : [ \"land\", \"fly\", \"walk\" ] } }}";
@@ -404,6 +423,7 @@ CuSuite *get_jsonconf_suite(void)
     SUITE_ADD_TEST(suite, test_items);
     SUITE_ADD_TEST(suite, test_ships);
     SUITE_ADD_TEST(suite, test_buildings);
+    SUITE_ADD_TEST(suite, test_configs);
     SUITE_ADD_TEST(suite, test_castles);
     SUITE_ADD_TEST(suite, test_terrains);
     SUITE_ADD_TEST(suite, test_races);