Refactor config in credentials (#91)

We want the configuration split in two files: 'arduino-cloud.yaml' and 'arduino-cloud-credentials.yaml'
They will have two separate commands: 'arduino-cloud-cli config' and 'arduino-cloud-cli credentials'

At the moment only credentials have been added, but in the future we could add a config with these params: url endpoint; output format; verbose;

breaking change: 'config' command is now changed into 'credentials'

Author: Paolo Calao

README.md

@@ -28,32 +28,32 @@ Another example: let's say that the execution of the previous command results in
 `$ arduino-cloud-cli device create --name mydevice -v`
 
 
-## Set a configuration
+## Set credentials 
 
-arduino-cloud-cli needs a configuration file containing an Arduino IoT Cloud client ID and its corresponding secret.
+arduino-cloud-cli needs a credentials file containing an Arduino IoT Cloud client ID and its corresponding secret.
 You can retrieve these credentials from the [cloud](https://create.arduino.cc/iot/integrations) by creating a new API key.
 
-Once you have the credentials, execute the following command and provide them when asked to create a new configuration file:
+Once you have the credentials, execute the following command and provide them:
 
-`$ arduino-cloud-cli config init`
+`$ arduino-cloud-cli credentials init`
 
 By default it will be created in the arduino data directory (arduino15). 
 You can specify a different destination folder with the `--dest-dir` option. 
-arduino-cloud-cli looks for its configuration file in different directories in the following order: current working directory, parents of the current working directory, arduino15 default directory.
+arduino-cloud-cli looks for its credentials file in different directories in the following order: current working directory, parents of the current working directory, arduino15 default directory.
 
-This gives you the possibility to use different configuration files depending on the project you are working on.
+This gives you the possibility to use different credentials files depending on the project you are working on.
 
-`$ arduino-cloud-cli config init --dest-dir <destinationFolder>`
+`$ arduino-cloud-cli credentials init --dest-dir <destinationFolder>`
 
-To reset an old configuration file, just overwrite it using this command:
+To reset an old credentials file, just overwrite it using this command:
 
-`$ arduino-cloud-cli config init --overwrite`
+`$ arduino-cloud-cli credentials init --overwrite`
 
-Configuration file is supported in two different format: json and yaml. Use the `--config-format` to choose it. Default is yaml.
+Credentials file is supported in two different format: json and yaml. Use the `--file-format` to choose it. Default is yaml.
 
-`$ arduino-cloud-cli config init --config-format json`
+`$ arduino-cloud-cli credentials init --file-format json`
 
-It is also possible to specify credentials directly in `ARDUINO_CLOUD_CLIENT` and `ARDUINO_CLOUD_SECRET` environment variables. Credentials specified in environment variables have higher priority than the ones specified in config files.
+It is also possible to specify credentials directly in `ARDUINO_CLOUD_CLIENT` and `ARDUINO_CLOUD_SECRET` environment variables. Credentials specified in environment variables have higher priority than the ones specified in credentials files.
 
 ## Device provisioning
 

cli/cli.go

@@ -25,7 +25,7 @@ import (
 
 	"github.com/arduino/arduino-cli/cli/errorcodes"
 	"github.com/arduino/arduino-cli/cli/feedback"
-	"github.com/arduino/arduino-cloud-cli/cli/config"
+	"github.com/arduino/arduino-cloud-cli/cli/credentials"
 	"github.com/arduino/arduino-cloud-cli/cli/dashboard"
 	"github.com/arduino/arduino-cloud-cli/cli/device"
 	"github.com/arduino/arduino-cloud-cli/cli/ota"
@@ -49,7 +49,7 @@ func Execute() {
 	}
 
 	cli.AddCommand(version.NewCommand())
-	cli.AddCommand(config.NewCommand())
+	cli.AddCommand(credentials.NewCommand())
 	cli.AddCommand(device.NewCommand())
 	cli.AddCommand(thing.NewCommand())
 	cli.AddCommand(dashboard.NewCommand())

cli/config/config.go cli/credentials/credentials.gocli/config/config.go renamed to cli/credentials/credentials.go

@@ -15,20 +15,20 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-package config
+package credentials
 
 import (
 	"github.com/spf13/cobra"
 )
 
 func NewCommand() *cobra.Command {
-	configCommand := &cobra.Command{
-		Use:   "config",
-		Short: "Configuration commands.",
-		Long:  "Configuration commands.",
+	credentialsCommand := &cobra.Command{
+		Use:   "credentials",
+		Short: "Credentials commands.",
+		Long:  "Credentials commands.",
 	}
 
-	configCommand.AddCommand(initInitCommand())
+	credentialsCommand.AddCommand(initInitCommand())
 
-	return configCommand
+	return credentialsCommand
 }

cli/config/init.go cli/credentials/init.gocli/config/init.go renamed to cli/credentials/init.go

@@ -15,7 +15,7 @@
 // You should have received a copy of the GNU Affero General Public License
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-package config
+package credentials
 
 import (
 	"errors"
@@ -43,81 +43,81 @@ var initFlags struct {
 func initInitCommand() *cobra.Command {
 	initCommand := &cobra.Command{
 		Use:   "init",
-		Short: "Initialize a configuration file",
-		Long:  "Initialize an Arduino IoT Cloud CLI configuration",
+		Short: "Initialize a credentials file",
+		Long:  "Initialize an Arduino IoT Cloud CLI credentials file",
 		Run:   runInitCommand,
 	}
 
-	initCommand.Flags().StringVar(&initFlags.destDir, "dest-dir", "", "Sets where to save the configuration file")
-	initCommand.Flags().BoolVar(&initFlags.overwrite, "overwrite", false, "Overwrite existing config file")
-	initCommand.Flags().StringVar(&initFlags.format, "config-format", "yaml", "Format of the configuration file, can be {yaml|json}")
+	initCommand.Flags().StringVar(&initFlags.destDir, "dest-dir", "", "Sets where to save the credentials file")
+	initCommand.Flags().BoolVar(&initFlags.overwrite, "overwrite", false, "Overwrite existing credentials file")
+	initCommand.Flags().StringVar(&initFlags.format, "file-format", "yaml", "Format of the credentials file, can be {yaml|json}")
 
 	return initCommand
 }
 
 func runInitCommand(cmd *cobra.Command, args []string) {
-	logrus.Info("Initializing config file")
+	logrus.Info("Initializing credentials file")
 
 	// Get default destination directory if it's not passed
 	if initFlags.destDir == "" {
-		configPath, err := arduino.DataDir()
+		credPath, err := arduino.DataDir()
 		if err != nil {
-			feedback.Errorf("Error during config init: cannot retrieve arduino default directory: %v", err)
+			feedback.Errorf("Error during credentials init: cannot retrieve arduino default directory: %v", err)
 			os.Exit(errorcodes.ErrGeneric)
 		}
 		// Create arduino default directory if it does not exist
-		if configPath.NotExist() {
-			if err = configPath.MkdirAll(); err != nil {
-				feedback.Errorf("Error during config init: cannot create arduino default directory %s: %v", configPath, err)
+		if credPath.NotExist() {
+			if err = credPath.MkdirAll(); err != nil {
+				feedback.Errorf("Error during credentials init: cannot create arduino default directory %s: %v", credPath, err)
 				os.Exit(errorcodes.ErrGeneric)
 			}
 		}
-		initFlags.destDir = configPath.String()
+		initFlags.destDir = credPath.String()
 	}
 
 	// Validate format flag
 	initFlags.format = strings.ToLower(initFlags.format)
 	if initFlags.format != "json" && initFlags.format != "yaml" {
-		feedback.Error("Error during config init: format is not valid, provide 'json' or 'yaml'")
+		feedback.Error("Error during credentials init: format is not valid, provide 'json' or 'yaml'")
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	// Check that the destination directory is valid and build the configuration file path
-	configPath, err := paths.New(initFlags.destDir).Abs()
+	// Check that the destination directory is valid and build the credentials file path
+	credPath, err := paths.New(initFlags.destDir).Abs()
 	if err != nil {
-		feedback.Errorf("Error during config init: cannot retrieve absolute path of %s: %v", initFlags.destDir, err)
+		feedback.Errorf("Error during credentials init: cannot retrieve absolute path of %s: %v", initFlags.destDir, err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
-	if !configPath.IsDir() {
-		feedback.Errorf("Error during config init: %s is not a valid directory", configPath)
+	if !credPath.IsDir() {
+		feedback.Errorf("Error during credentials init: %s is not a valid directory", credPath)
 		os.Exit(errorcodes.ErrGeneric)
 	}
-	configFile := configPath.Join(config.Filename + "." + initFlags.format)
-	if !initFlags.overwrite && configFile.Exist() {
-		feedback.Errorf("Error during config init: %s already exists, use '--overwrite' to overwrite it",
-			configFile)
+	credFile := credPath.Join(config.CredentialsFilename + "." + initFlags.format)
+	if !initFlags.overwrite && credFile.Exist() {
+		feedback.Errorf("Error during credentials init: %s already exists, use '--overwrite' to overwrite it",
+			credFile)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	// Take needed configuration parameters starting an interactive mode
+	// Take needed credentials starting an interactive mode
 	feedback.Print("To obtain your API credentials visit https://create.arduino.cc/iot/integrations")
 	id, key, err := paramsPrompt()
 	if err != nil {
-		feedback.Errorf("Error during config init: cannot take config params: %v", err)
+		feedback.Errorf("Error during credentials init: cannot take credentials params: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	// Write the configuration file
+	// Write the credentials file
 	newSettings := viper.New()
 	newSettings.SetConfigPermissions(os.FileMode(0600))
 	newSettings.Set("client", id)
 	newSettings.Set("secret", key)
-	if err := newSettings.WriteConfigAs(configFile.String()); err != nil {
-		feedback.Errorf("Error during config init: cannot create config file: %v", err)
+	if err := newSettings.WriteConfigAs(credFile.String()); err != nil {
+		feedback.Errorf("Error during credentials init: cannot write credentials file: %v", err)
 		os.Exit(errorcodes.ErrGeneric)
 	}
 
-	feedback.Printf("Config file successfully initialized at: %s", configFile)
+	feedback.Printf("Credentials file successfully initialized at: %s", credFile)
 }
 
 func paramsPrompt() (id, key string, err error) {

command/dashboard/create.go

@@ -34,7 +34,7 @@ type CreateParams struct {
 
 // Create allows to create a new dashboard.
 func Create(params *CreateParams) (*DashboardInfo, error) {
-	conf, err := config.Retrieve()
+	conf, err := config.RetrieveCredentials()
 	if err != nil {
 		return nil, err
 	}

command/dashboard/delete.go

@@ -31,7 +31,7 @@ type DeleteParams struct {
 // Delete command is used to delete a dashboard
 // from Arduino IoT Cloud.
 func Delete(params *DeleteParams) error {
-	conf, err := config.Retrieve()
+	conf, err := config.RetrieveCredentials()
 	if err != nil {
 		return err
 	}

command/dashboard/extract.go

@@ -34,7 +34,7 @@ type ExtractParams struct {
 // Extract command is used to extract a dashboard template
 // from a dashboard on Arduino IoT Cloud.
 func Extract(params *ExtractParams) (map[string]interface{}, error) {
-	conf, err := config.Retrieve()
+	conf, err := config.RetrieveCredentials()
 	if err != nil {
 		return nil, err
 	}

command/dashboard/list.go

@@ -25,7 +25,7 @@ import (
 // List command is used to list
 // the dashboards of Arduino IoT Cloud.
 func List() ([]DashboardInfo, error) {
-	conf, err := config.Retrieve()
+	conf, err := config.RetrieveCredentials()
 	if err != nil {
 		return nil, err
 	}

command/device/create.go

@@ -63,7 +63,7 @@ func Create(params *CreateParams) (*DeviceInfo, error) {
 		)
 	}
 
-	conf, err := config.Retrieve()
+	conf, err := config.RetrieveCredentials()
 	if err != nil {
 		return nil, err
 	}

command/device/creategeneric.go

@@ -44,7 +44,7 @@ type DeviceGenericInfo struct {
 
 // CreateGeneric command is used to add a new generic device to Arduino IoT Cloud.
 func CreateGeneric(params *CreateGenericParams) (*DeviceGenericInfo, error) {
-	conf, err := config.Retrieve()
+	conf, err := config.RetrieveCredentials()
 	if err != nil {
 		return nil, err
 	}