Catch errors executing code loaded from includes

Depending on the specific error, sometimes code will load but be unable to execute, throwing an error. This now catches (pcall, "protected call") it and displays an appropriate error message, including the file that was included and where the include originated from.

Author: richard-sim

src/base/globals.lua

@@ -48,10 +48,18 @@
 	io._includedFiles = {}
 
 	function include(fname)
-		fname, compiled_chunk = premake.findProjectScript(fname)
-		if not io._includedFiles[fname] then
-			io._includedFiles[fname] = true
-			return compiled_chunk()
+		local actualFname, compiled_chunk = premake.findProjectScript(fname)
+		if not io._includedFiles[actualFname] then
+			io._includedFiles[actualFname] = true
+			local success, res = pcall(compiled_chunk)
+			if success then
+				-- res is the return value of the script
+				return res
+			else
+				-- res is the error message
+				local caller = filelineinfo(2)
+				premake.error(caller .. ": Error executing '" .. fname .. ": " .. res)
+			end
 		end
 	end