some fixes

dsl/ast.go

@@ -53,6 +53,16 @@ type Pattern struct {
 	InputFile  string
 	OutputFile string
 
+	// StageAll, valid only in dir mode, stages every file found in each matched
+	// directory into the test's working directory (basenames preserved), except
+	// the OutputFile and ArgsFile. Use it when the program discovers its own
+	// inputs in the working directory instead of receiving a single input file.
+	StageAll bool
+	// ArgsFile, valid only in dir mode, reads the program arguments from this
+	// file inside each matched directory (whitespace-separated). It takes
+	// precedence over Args. Placeholders are still substituted.
+	ArgsFile string
+
 	Args []string
 }