feat(cli): add flag --no-config to do not read config file. All options can be read from env vars

cli/cmd/root.go

@@ -19,6 +19,7 @@ import (
 )
 
 var configPath string
+var noConfig bool
 
 var rootCmd = &cobra.Command{
 	Use:   "semaphore",
@@ -34,8 +35,9 @@ Complete documentation is available at https://ansible-semaphore.com.`,
 
 func Execute() {
 	rootCmd.PersistentFlags().StringVar(&configPath, "config", "", "Configuration file path")
+	rootCmd.PersistentFlags().BoolVar(&noConfig, "no-config", false, "Don't use configuration file")
 	if err := rootCmd.Execute(); err != nil {
-		fmt.Fprintln(os.Stderr, err)
+		_, _ = fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)
 	}
 }
@@ -96,7 +98,7 @@ func runService() {
 }
 
 func createStore(token string) db.Store {
-	util.ConfigInit(configPath)
+	util.ConfigInit(configPath, noConfig)
 
 	store := factory.CreateStore()
 

cli/cmd/runner_start.go

@@ -11,7 +11,7 @@ func init() {
 }
 
 func runRunner() {
-	util.ConfigInit(configPath)
+	util.ConfigInit(configPath, noConfig)
 
 	taskPool := runners.JobPool{}
 

cli/cmd/runner_unregister.go

@@ -11,7 +11,7 @@ func init() {
 }
 
 func unregisterRunner() {
-	util.ConfigInit(configPath)
+	util.ConfigInit(configPath, noConfig)
 
 	taskPool := runners.JobPool{}
 	err := taskPool.Unregister()

cli/cmd/setup.go

@@ -33,7 +33,7 @@ func doSetup() int {
 
 	configPath := setup.SaveConfig(config)
 
-	util.ConfigInit(configPath)
+	util.ConfigInit(configPath, false)
 
 	fmt.Println(" Pinging db..")
 

util/config.go

@@ -107,7 +107,7 @@ type RunnerSettings struct {
 	// 1) User starts the task.
 	// 2) Semaphore found runner for task and calls runner's webhook if it provided.
 	// 3) Your server or lambda handling the call and starts the one-off runner.
-	// 4) The runner connects to the Semaphore server and handles tasks.
+	// 4) The runner connects to the Semaphore server and handles the enqueued task(s).
 	OneOff bool `json:"one_off" env:"SEMAPHORE_RUNNER_ONE_OFF"`
 
 	Webhook          string `json:"webhook" env:"SEMAPHORE_RUNNER_WEBHOOK"`
@@ -255,13 +255,15 @@ func LoadRunnerSettings(path string) (config RunnerConfig, err error) {
 }
 
 // ConfigInit reads in cli flags, and switches actions appropriately on them
-func ConfigInit(configPath string) {
+func ConfigInit(configPath string, noConfigFile bool) {
 	fmt.Println("Loading config")
 
 	Config = &ConfigType{}
 	Config.Apps = map[string]App{}
 
-	loadConfigFile(configPath)
+	if !noConfigFile {
+		loadConfigFile(configPath)
+	}
 	loadConfigEnvironment()
 	loadConfigDefaults()