Add version command

.goreleaser.yaml

@@ -1,9 +1,16 @@
 builds:
-  - targets:
+  -
+    targets:
       - linux_amd64
       - windows_amd64
       - darwin_amd64
       - darwin_arm64
+    ldflags:
+      - >
+        -s -w
+        -X github.com/leancodepl/poe2arb/cmd.Version={{.Version}}
+        -X github.com/leancodepl/poe2arb/cmd.Commit={{.Commit}}
+        -X github.com/leancodepl/poe2arb/cmd.BuiltDate={{.Date}}
 universal_binaries:
   - replace: true
 changelog:

cmd/poe2arb.go

@@ -11,6 +11,7 @@ var rootCmd = &cobra.Command{
 func Execute() {
 	rootCmd.AddCommand(convertCmd)
 	rootCmd.AddCommand(poeCmd)
+	rootCmd.AddCommand(versionCmd)
 
 	rootCmd.Execute()
 }

cmd/version.go

@@ -0,0 +1,24 @@
+package cmd
+
+import "github.com/spf13/cobra"
+
+var (
+	// Version is the version of the application. It is set during the build process using ldflags.
+	Version = "dev"
+	// Commit is the commit hash of the application. It is set during the build process using ldflags.
+	Commit = "none"
+	// Date is the date of the build. It is set during the build process using ldflags.
+	BuiltDate = "unknown"
+)
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print the version number of poe2arb",
+	RunE:  runVersion,
+}
+
+func runVersion(cmd *cobra.Command, args []string) error {
+	cmd.Printf("poe2arb version %s, commit %s, built at %s\n", Version, Commit, BuiltDate)
+
+	return nil
+}