added debug mode for scripting

2 files changed, 26 insertions, 1 deletions

diff --git a/.lush/scripts/example.lua b/.lush/scripts/example.lua
index 279ad5e..b2f2f2b 100644
--- a/.lush/scripts/example.lua
+++ b/.lush/scripts/example.lua
@@ -30,6 +30,11 @@ if lush.exec('echo "hello world"\n') then
 	print("echo worked properly")
 end
 
+-- debug mode can be used to log execution of commands
+lush.debug(true) -- enters debug
+lush.exec('echo "echo in debug mode"')
+lush.debug(false) -- exits debug
+
 -- getcwd returns the current working directory
 local cwd = lush.getcwd()
 print(cwd)
diff --git a/src/lua_api.c b/src/lua_api.c
index 554c0c9..4b5de86 100644
--- a/src/lua_api.c
+++ b/src/lua_api.c
@@ -25,6 +25,9 @@ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 #include <stdlib.h>
 #include <unistd.h>
 
+// global for checking if debug_mode is toggled
+static bool debug_mode = false;
+
 // -- script execution --
 void lua_load_script(lua_State *L, const char *script) {
 	char script_path[512];
@@ -80,7 +83,15 @@ static int execute_command(lua_State *L, const char *line) {
 static int l_execute_command(lua_State *L) {
 	const char *command = luaL_checkstring(L, 1);
 	int status = execute_command(L, command);
-	bool rc = status == 0 ? true : false;
+	bool rc = status != -1 ? true : false;
+
+	if (debug_mode) {
+		if (rc)
+			printf("Executed: %s, success\n", command);
+		else
+			printf("Executed: %s, failed\n", command);
+	}
+
 	lua_pushboolean(L, rc);
 	return 1;
 }
@@ -92,6 +103,13 @@ static int l_get_cwd(lua_State *L) {
 	return 1;
 }
 
+static int l_debug(lua_State *L) {
+	if (lua_isboolean(L, 1)) {
+		debug_mode = lua_toboolean(L, 1);
+	}
+	return 0;
+}
+
 // -- register Lua functions --
 
 void lua_register_api(lua_State *L) {
@@ -102,6 +120,8 @@ void lua_register_api(lua_State *L) {
 	lua_setfield(L, -2, "exec");
 	lua_pushcfunction(L, l_get_cwd);
 	lua_setfield(L, -2, "getcwd");
+	lua_pushcfunction(L, l_debug);
+	lua_setfield(L, -2, "debug");
 	// set the table as global
 	lua_setglobal(L, "lush");
 }