feat(commands): add version command

cmd/version.go

@@ -0,0 +1,40 @@
+/*
+Copyright © 2022 Simon Emms <simon@simonemms.com>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+	http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	GitCommit = ""
+	Version   = "development"
+)
+
+// versionCmd represents the version command
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Displays version information",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Printf("Version: %s\nGit commit: %s\n", Version, GitCommit)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}