feat: add simple status command

cmd/actions/root.go

@@ -41,7 +41,7 @@ func init() {
 	rootCmd.PersistentFlags().BoolVarP(&flagVerbose, "verbose", "v", false, "show more output")
 	rootCmd.PersistentFlags().StringSliceVarP(&flagFiles, "file", "f", []string{"squadron.yaml"}, "specify alternative squadron files")
 
-	rootCmd.AddCommand(upCmd, downCmd, buildCmd, pushCmd, listCmd, generateCmd, configCmd, versionCmd, completionCmd, templateCmd)
+	rootCmd.AddCommand(upCmd, downCmd, buildCmd, pushCmd, listCmd, generateCmd, statusCmd, configCmd, versionCmd, completionCmd, templateCmd)
 }
 
 func Execute() {

cmd/actions/status.go

@@ -0,0 +1,52 @@
+package actions
+
+import (
+	"github.com/spf13/cobra"
+
+	"github.com/foomo/squadron"
+)
+
+func init() {
+	statusCmd.Flags().StringVarP(&flagNamespace, "namespace", "n", "default", "specifies the namespace")
+}
+
+var statusCmd = &cobra.Command{
+	Use:     "status [UNIT...]",
+	Short:   "installs the squadron or given units",
+	Example: "  squadron status frontend backend --namespace demo --build --push -- --dry-run",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return status(args, cwd, flagNamespace, flagFiles)
+	},
+}
+
+func status(args []string, cwd, namespace string, files []string) error {
+	sq := squadron.New(cwd, namespace, files)
+
+	if err := sq.MergeConfigFiles(); err != nil {
+		return err
+	}
+
+	args, helmArgs := parseExtraArgs(args)
+
+	unitsNames, err := parseUnitNames(args, sq.GetConfig().Units)
+	if err != nil {
+		return err
+	}
+
+	if unitsNames != nil {
+		if err := sq.FilterConfig(unitsNames); err != nil {
+			return err
+		}
+	}
+
+	if err := sq.RenderConfig(); err != nil {
+		return err
+	}
+
+	units, err := parseUnitArgs(args, sq.GetConfig().Units)
+	if err != nil {
+		return err
+	}
+
+	return sq.Status(units, helmArgs)
+}

squadron.go

@@ -171,9 +171,9 @@ func (sq *Squadron) Package() error {
 }
 
 func (sq *Squadron) Down(units map[string]Unit, helmArgs []string) error {
-	stdErr := bytes.NewBuffer([]byte{})
 	if sq.c.Unite {
 		logrus.Infof("running helm uninstall for: %s", sq.chartPath())
+		stdErr := bytes.NewBuffer([]byte{})
 		if _, err := util.NewHelmCommand().Args("uninstall", sq.name).
 			Stderr(stdErr).
 			Stdout(os.Stdout).
@@ -188,6 +188,7 @@ func (sq *Squadron) Down(units map[string]Unit, helmArgs []string) error {
 		// todo use release prefix on install: squadron name or --name
 		rName := fmt.Sprintf("%s-%s", sq.name, uName)
 		logrus.Infof("running helm uninstall for: %s", uName)
+		stdErr := bytes.NewBuffer([]byte{})
 		if _, err := util.NewHelmCommand().Args("uninstall", rName).
 			Stderr(stdErr).
 			Stdout(os.Stdout).
@@ -241,6 +242,47 @@ func (sq *Squadron) Diff(units map[string]Unit, helmArgs []string) (string, erro
 	return "", nil
 }
 
+func (sq *Squadron) Status(units map[string]Unit, helmArgs []string) error {
+	stdOut := bytes.NewBuffer([]byte{})
+	if sq.c.Unite {
+		stdOut.WriteString("==== " + sq.name + strings.Repeat("=", 20-len(sq.name)) + "\n")
+		logrus.Infof("running helm status for chart: %s", sq.chartPath())
+		stdErr := bytes.NewBuffer([]byte{})
+		if _, err := util.NewHelmCommand().Args("status", sq.name).
+			Stderr(stdErr).
+			Stdout(stdOut).
+			Args("--namespace", sq.namespace).
+			Args(helmArgs...).
+			Run(); err != nil &&
+			string(bytes.TrimSpace(stdErr.Bytes())) == "Error: release: not found" {
+			stdOut.WriteString("NAME: " + sq.name + "\n")
+			stdOut.WriteString("STATUS: not installed\n")
+		} else if err != nil {
+			return err
+		}
+	}
+	for uName := range units {
+		stdOut.WriteString("==== " + uName + " " + strings.Repeat("=", 60-len(uName)) + "\n")
+		// todo use release prefix on install: squadron name or --name
+		rName := fmt.Sprintf("%s-%s", sq.name, uName)
+		logrus.Infof("running helm status for %s", uName)
+		stdErr := bytes.NewBuffer([]byte{})
+		if _, err := util.NewHelmCommand().Args("status", rName).
+			Stderr(stdErr).
+			Stdout(stdOut).
+			Args("--namespace", sq.namespace).
+			Args(helmArgs...).Run(); err != nil &&
+			string(bytes.TrimSpace(stdErr.Bytes())) == "Error: release: not found" {
+			stdOut.WriteString("NAME: " + rName + "\n")
+			stdOut.WriteString("STATUS: not installed\n")
+		} else if err != nil {
+			return err
+		}
+	}
+	fmt.Println(strings.ReplaceAll(stdOut.String(), "\\n", "\n"))
+	return nil
+}
+
 func (sq *Squadron) Up(units map[string]Unit, helmArgs []string) error {
 	if sq.c.Unite {
 		logrus.Infof("running helm upgrade for chart: %s", sq.chartPath())