Implement config paths helpers

config/directory.go

@@ -0,0 +1,47 @@
+package config
+
+import (
+	"os"
+	"os/user"
+	"path/filepath"
+
+	"github.com/rs/zerolog/log"
+)
+
+// Directory for config files
+var Directory string
+
+func directory() string {
+	if Directory != "" {
+		return Directory
+	}
+
+	usr, err := user.Current()
+	if err != nil {
+		log.Fatal().Err(err).Msg("get current user")
+	}
+
+	Directory = filepath.Join(usr.HomeDir, ".out-of-tree")
+
+	return Directory
+}
+
+// Dir that exist relative to config directory
+func Dir(s ...string) (dir string) {
+	dir = filepath.Join(append([]string{directory()}, s...)...)
+	err := os.MkdirAll(dir, os.ModePerm)
+	if err != nil {
+		log.Fatal().Err(err).Msg("mkdir")
+	}
+	return
+}
+
+// File in existing dir relative to config directory
+func File(s ...string) (file string) {
+	file = filepath.Join(append([]string{directory()}, s...)...)
+	err := os.MkdirAll(filepath.Dir(file), os.ModePerm)
+	if err != nil {
+		log.Fatal().Err(err).Msg("mkdir")
+	}
+	return
+}