Fix config init command

airshipctl config init command currently fails with "no such file or directory"
error, this patch fixes it.

Change-Id: I78cff26ed71bdb400ce897630102350e72dc495d
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>

cmd/config/config.go

@@ -29,7 +29,9 @@ func NewConfigCommand(rootSettings *environment.AirshipCTLSettings) *cobra.Comma
 		Short:                 "Manage the airshipctl config file",
 		PersistentPreRun: func(cmd *cobra.Command, args []string) {
 			log.Init(rootSettings.Debug, cmd.OutOrStderr())
-
+			if cmd.Use == "init" {
+				rootSettings.Create = true
+			}
 			// Load or Initialize airship Config
 			rootSettings.InitConfig()
 		},

pkg/config/config.go

@@ -83,13 +83,13 @@ type Config struct {
 
 // LoadConfig populates the Config object using the files found at
 // airshipConfigPath and kubeConfigPath
-func (c *Config) LoadConfig(airshipConfigPath, kubeConfigPath string) error {
-	err := c.loadFromAirConfig(airshipConfigPath)
+func (c *Config) LoadConfig(airshipConfigPath, kubeConfigPath string, create bool) error {
+	err := c.loadFromAirConfig(airshipConfigPath, create)
 	if err != nil {
 		return err
 	}
 
-	err = c.loadKubeConfig(kubeConfigPath)
+	err = c.loadKubeConfig(kubeConfigPath, create)
 	if err != nil {
 		return err
 	}
@@ -104,7 +104,7 @@ func (c *Config) LoadConfig(airshipConfigPath, kubeConfigPath string) error {
 // * airshipConfigPath is the empty string
 // * the file at airshipConfigPath is inaccessible
 // * the file at airshipConfigPath cannot be marshaled into Config
-func (c *Config) loadFromAirConfig(airshipConfigPath string) error {
+func (c *Config) loadFromAirConfig(airshipConfigPath string, create bool) error {
 	if airshipConfigPath == "" {
 		return errors.New("configuration file location was not provided")
 	}
@@ -114,20 +114,22 @@ func (c *Config) loadFromAirConfig(airshipConfigPath string) error {
 
 	// If I can read from the file, load from it
 	// throw an error otherwise
-	if _, err := os.Stat(airshipConfigPath); err != nil {
+	if _, err := os.Stat(airshipConfigPath); os.IsNotExist(err) && create {
+		return nil
+	} else if err != nil {
 		return err
 	}
 
 	return util.ReadYAMLFile(airshipConfigPath, c)
 }
 
-func (c *Config) loadKubeConfig(kubeConfigPath string) error {
+func (c *Config) loadKubeConfig(kubeConfigPath string, create bool) error {
 	// Will need this for persisting the changes
 	c.kubeConfigPath = kubeConfigPath
 
 	// If I can read from the file, load from it
 	var err error
-	if _, err = os.Stat(kubeConfigPath); os.IsNotExist(err) {
+	if _, err = os.Stat(kubeConfigPath); os.IsNotExist(err) && create {
 		// Default kubeconfig matching Airship target cluster
 		c.kubeConfig = &clientcmdapi.Config{
 			Clusters: map[string]*clientcmdapi.Cluster{

pkg/environment/settings.go

@@ -33,6 +33,7 @@ type AirshipCTLSettings struct {
 	Debug             bool
 	AirshipConfigPath string
 	KubeConfigPath    string
+	Create            bool
 	Config            *config.Config
 }
 
@@ -64,6 +65,8 @@ func (a *AirshipCTLSettings) InitFlags(cmd *cobra.Command) {
 		clientcmd.RecommendedConfigPathFlag,
 		"",
 		`Path to kubeconfig associated with airshipctl configuration. (default "`+defaultKubeConfigPath+`")`)
+
+	a.Create = false
 }
 
 // InitConfig - Initializes and loads Config it exists.
@@ -74,10 +77,10 @@ func (a *AirshipCTLSettings) InitConfig() {
 	a.InitKubeConfigPath()
 	InitPluginPath()
 
-	err := a.Config.LoadConfig(a.AirshipConfigPath, a.KubeConfigPath)
+	err := a.Config.LoadConfig(a.AirshipConfigPath, a.KubeConfigPath, a.Create)
 	if err != nil {
 		// Should stop airshipctl
-		log.Fatal(err)
+		log.Fatal("Failed to load or initialize config: ", err)
 	}
 }
 

testutil/testconfig.go

@@ -190,7 +190,7 @@ func InitConfig(t *testing.T) (conf *config.Config, cleanup func(*testing.T)) {
 
 	conf = config.NewConfig()
 
-	err = conf.LoadConfig(configPath, kubeConfigPath)
+	err = conf.LoadConfig(configPath, kubeConfigPath, false)
 	require.NoError(t, err)
 
 	return conf, cleanup