move modules.h -> common.h and add version numbers

4 files changed, 49 insertions, 2 deletions

diff --git a/src/modules.h b/src/common.h
index 69e5900..31ff856 100644
--- a/src/modules.h
+++ b/src/common.h
@@ -3,6 +3,11 @@
 
 #include <lua.h>
 
+#define HONEY_VERSION_MAJOR 0
+#define HONEY_VERSION_MINOR 0
+#define HONEY_VERSION_PATCH 0
+#define HONEY_VERSION_STR "intermissia [pre-alpha]"
+
 #define HONEY_MODULES \
 	X(audio) \
 	X(gl) \
@@ -11,9 +16,10 @@
 	X(image) \
 	X(import) \
 	X(logging) \
+	X(nvg) \
 	X(ode) \
 	X(util) \
-	X(nvg) \
+	X(version) \
 
 
 #define X(module) \
diff --git a/src/main.c b/src/main.c
index db348b8..90e829e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3,10 +3,11 @@
 #include <lualib.h>
 #include "options/options.h"
 #include "util/util.h"
-#include "modules.h"
+#include "common.h"
 
 
 void print_load_error(lua_State *L, const char *script_file, int error_type);
+void setup_version(lua_State *L, int honey_tbl);
 
 int main(int argc, char **argv)
 {
@@ -69,3 +70,18 @@ void print_load_error(lua_State *L, const char *script_file, int error_type)
 		break;
 	};
 }
+
+
+void setup_version(lua_State *L, int honey_tbl)
+{
+	struct honey_tbl_t tbl[] = {
+		H_INT("major", HONEY_VERSION_MAJOR),
+		H_INT("minor", HONEY_VERSION_MINOR),
+		H_INT("patch", HONEY_VERSION_PATCH),
+		H_STR("string", HONEY_VERSION_STR),
+
+		H_END
+	};
+	create_table(L, tbl);
+	lua_setfield(L, honey_tbl, "version");
+}
diff --git a/src/options/options.c b/src/options/options.c
index 4488837..7ac35c7 100644
--- a/src/options/options.c
+++ b/src/options/options.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <cargs.h>
+#include <common.h>
 #include "options.h"
 
 static struct cag_option opts[] = {
@@ -11,6 +12,13 @@ static struct cag_option opts[] = {
 		.description = "The filename of the main script. (default: main.lua)"
 	},
 	{
+		.identifier = 'e',
+		.access_letters = NULL,
+		.access_name = "version",
+		.value_name = NULL,
+		.description = "Show the honey version"
+	},
+	{
 		.identifier = 'h',
 		.access_letters = "h",
 		.access_name = "help",
@@ -29,6 +37,12 @@ void print_help(char *program_name)
 
 enum outcomes_t parse_options(struct honey_options *options, int argc, char **argv)
 {
+	/* check if we even need to parse at all */
+	if (argc == 1) {
+		print_help(argv[0]);
+		return EXIT_SUCCESS;
+	}
+	
 	/* default values */
 	options->script_file = "main.lua";
 
@@ -47,6 +61,15 @@ enum outcomes_t parse_options(struct honey_options *options, int argc, char **ar
 		case 'h':
 			print_help(argv[0]);
 			return EXIT_SUCCESS;
+		case 'e':
+			printf(
+				"honey v%d.%d.%d -- %s\n",
+				HONEY_VERSION_MAJOR,
+				HONEY_VERSION_MINOR,
+				HONEY_VERSION_PATCH,
+				HONEY_VERSION_STR
+			);
+			return EXIT_SUCCESS;
 		default:
 			return EXIT_FAILURE;
 		}
diff --git a/src/util/util.h b/src/util/util.h
index ab68330..293397c 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -10,12 +10,14 @@ struct honey_tbl_t {
 	union {
 		lua_Integer integer;
 		lua_CFunction function;
+		const char *string;
 	} value;
 };
 
 #define H_INT(k, v)  { .key=k, .type=LUA_TNUMBER, .value.integer=v }
 #define H_ENUM(v)    { .key=#v, .type=LUA_TNUMBER, .value.integer=v }
 #define H_FUNC(k, v) { .key=k, .type=LUA_TFUNCTION, .value.function=v }
+#define H_STR(k, v)  { .key=k, .type=LUA_TSTRING, .value.string=v }
 #define H_END { .key=NULL, .type=LUA_TNIL, .value.integer=0 }