Added missing os.copyfile() function (untested on Posix yet)

samples/project/premake4.lua

@@ -1,5 +1,7 @@
 solution "PremakeTestbox"
 	configurations { "Debug", "Release" }
+
+-- solution level configuration
 	
 	configuration "Debug"
 		targetdir "bin/debug"
@@ -11,16 +13,31 @@ solution "PremakeTestbox"
 		flags   { "Optimize" }
 		defines { "NDEBUG" }
 	
+
+-- include all the projects
 	
-include "CppConsoleApp"
-include "CsConsoleApp"
-include "CppWindowedApp"
-include "CppSharedLib"
-include "CsSharedLib"
-include "CppStaticLib"
+	include "CppConsoleApp"
+	include "CsConsoleApp"
+	include "CppWindowedApp"
+	include "CppSharedLib"
+	include "CsSharedLib"
+	include "CppStaticLib"
 
 
-if _ACTION == "clean" then
-	os.rmdir("bin")
-end
+-- add to the built-in clean action
 
+	if _ACTION == "clean" then
+		os.rmdir("bin")
+	end
+
+
+
+-- add a new install action
+
+	newaction {
+		trigger     = "install",
+		description = "Install the project",
+		execute     = function ()
+			os.copyfile("premake4.lua", "../premake4.lua")
+		end
+	} 

src/host/premake.c

@@ -31,6 +31,7 @@ extern int builtin_sizes[];
 /* Built-in functions */
 static const luaL_Reg os_functions[] = {
 	{ "chdir",       os_chdir       },
+	{ "copyfile",    os_copyfile    },
 	{ "isdir",       os_isdir       },
 	{ "getcwd",      os_getcwd      },
 	{ "isfile",      os_isfile      },

src/host/premake.h

@@ -46,6 +46,7 @@ int do_isfile(const char* filename);
 
 /* Built-in functions */
 int os_chdir(lua_State* L);
+int os_copyfile(lua_State* L);
 int os_getcwd(lua_State* L);
 int os_isdir(lua_State* L);
 int os_isfile(lua_State* L);