wip

cmd/cli/flag.go

@@ -0,0 +1,35 @@
+package cli
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+type FlagStringArray []string
+
+func (array *FlagStringArray) String() string {
+	return strings.Join(*array, ", ")
+}
+
+func (array *FlagStringArray) Set(s string) error {
+	*array = append(*array, s)
+	return nil
+}
+
+type FileList FlagStringArray
+
+func (fileList FileList) Strings() []string {
+	return ([]string)(fileList)
+}
+
+func (fileList *FileList) String() string {
+	return (*FlagStringArray)(fileList).String()
+}
+
+func (fileList *FileList) Set(s string) error {
+	if _, err := os.Stat(s); os.IsNotExist(err) {
+		return fmt.Errorf("file does not exist: %s", s)
+	}
+	return (*FlagStringArray)(fileList).Set(s)
+}