feat(config): add config file

internal/cache/cache.go

@@ -0,0 +1,43 @@
+// Package cache helper for cache version
+package cache
+
+import (
+	"io/ioutil"
+
+	"gopkg.in/yaml.v2"
+)
+
+// VersionFileContent struct
+type VersionFileContent struct {
+	Version     string `yaml:"version"`
+	NextVersion string `yaml:"nextVersion"`
+	Commit      string `yaml:"commit"`
+	Branch      string `yaml:"branch"`
+}
+
+// Write version into .version
+func Write(versionFileContent VersionFileContent) error {
+	data, err := yaml.Marshal(&versionFileContent)
+	if err != nil {
+		return err
+	}
+
+	return ioutil.WriteFile(".version", data, 0644)
+}
+
+// Read version into .version
+func Read() (*VersionFileContent, error) {
+
+	content, err := ioutil.ReadFile(".version")
+	if err != nil {
+		return &VersionFileContent{}, err
+	}
+
+	var versionFileContent VersionFileContent
+	err = yaml.Unmarshal(content, &versionFileContent)
+	if err != nil {
+		return &VersionFileContent{}, err
+	}
+
+	return &versionFileContent, nil
+}