feat: add version command

cmd/version_command.go

@@ -0,0 +1,21 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/belphemur/CBZOptimizer/meta"
+	"github.com/spf13/cobra"
+)
+
+func init() {
+	command := &cobra.Command{
+		Use:   "version",
+		Short: "Print the version of the application",
+		Long:  "Print the version of the application",
+		Run:   VersionCommand,
+	}
+	AddCommand(command)
+}
+
+func VersionCommand(_ *cobra.Command, _ []string) {
+	fmt.Printf("CBZOptimizer %s [%s] built [%s]\n", meta.Version, meta.Commit, meta.Date)
+}

meta/version.go

@@ -0,0 +1,5 @@
+package meta
+
+var Version = "v0.0.0"
+var Commit = ""
+var Date = ""