Begin caching, implement commands

internal/config/config.go

@@ -0,0 +1,16 @@
+package config
+
+import "time"
+
+type Config struct {
+	GitlabHost  string      `yaml:"gitlabHost" json:"gitlabHost"`
+	GitlabToken string      `yaml:"gitlabToken" json:"gitlabToken"`
+	LogLevel    string      `yaml:"logLevel" json:"logLevel" enum:"info,warn,debug,error"`
+	ProjectPath string      `yaml:"projectPath" json:"projectPath"`
+	Cache       cacheConfig `yaml:"cache" json:"cache"`
+}
+
+type cacheConfig struct {
+	Ttl  time.Duration `yaml:"ttl" json:"ttl"`
+	File string
+}