feat: add version cmd

.semver.yaml

@@ -1,4 +1,4 @@
 alpha: 0
 beta: 0
 rc: 0
-release: v1.0.0
+release: v1.0.1

README.md

@@ -71,6 +71,7 @@ Available Commands:
   discover    List discovered projects
   help        Help about any command
   list        List projects
+  version     Get goac version
 
 Flags:
   -h, --help   help for goac

cmd/version.go

@@ -0,0 +1,56 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+	"gopkg.in/yaml.v3"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+// versionCmd represents the project command
+var versionCmd = &cobra.Command{
+	Use:     "version",
+	Example: "goac version",
+	Short:   "Get goac version",
+	Long:    `Use it to know your goac version.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if len(args) > 0 {
+			return errors.New("bad args number")
+		}
+
+		return run()
+	},
+}
+
+type Semver struct {
+	Alpha   int    `yaml:"alpha"`
+	Beta    int    `yaml:"beta"`
+	RC      int    `yaml:"rc"`
+	Release string `yaml:"release"`
+}
+
+func run() error {
+	// read file .semver.yaml
+	data, err := os.ReadFile(".semver.yaml")
+	if err != nil {
+		return fmt.Errorf("error: %v", err)
+	}
+
+	// unmarshall YAML
+	var semver Semver
+	err = yaml.Unmarshal(data, &semver)
+	if err != nil {
+		return fmt.Errorf("error: %v", err)
+	}
+
+	// Print 'release'
+	fmt.Printf("goac version %s\n", semver.Release)
+
+	return nil
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}