Add file lua value

processor/regex.go

@@ -21,7 +21,9 @@ type CaptureGroup struct {
 }
 
 // ProcessContent applies regex replacement with Lua processing
-func ProcessRegex(content string, command utils.ModifyCommand) ([]utils.ReplaceCommand, error) {
+// The filename here exists ONLY so we can pass it to the lua environment
+// It's not used for anything else
+func ProcessRegex(content string, command utils.ModifyCommand, filename string) ([]utils.ReplaceCommand, error) {
 	var commands []utils.ReplaceCommand
 	logger.Trace("Processing regex: %q", command.Regex)
 
@@ -79,6 +81,7 @@ func ProcessRegex(content string, command utils.ModifyCommand) ([]utils.ReplaceC
 			logger.Error("Error creating Lua state: %v", err)
 			return commands, fmt.Errorf("error creating Lua state: %v", err)
 		}
+		L.SetGlobal("file", lua.LString(filename))
 		// Hmm... Maybe we don't want to defer this..
 		// Maybe we want to close them every iteration
 		// We'll leave it as is for now
@@ -205,7 +208,7 @@ func ProcessRegex(content string, command utils.ModifyCommand) ([]utils.ReplaceC
 
 			for _, capture := range captureGroups {
 				if capture.Value == capture.Updated {
-					logger.Info("Capture group unchanged: %s", capture.Value)
+					logger.Info("Capture group unchanged: %s", LimitString(capture.Value, 50))
 					continue
 				}