Initial commit

Proof-of-concept implementation. Bugs will occur.

internal/configuration/errors.go

@@ -0,0 +1,10 @@
+package configuration
+
+import "errors"
+
+var (
+	ErrConfiguration               = errors.New("configuration")
+	ErrCantReadConfigFile          = errors.New("can't read config file")
+	ErrCantParseConfigFile         = errors.New("can't parse config file")
+	ErrSourceDirectoryDoesNotExist = errors.New("source directory does not exist")
+)