bt: add version information

Author: DavidGamba

bt/main.go

@@ -59,6 +59,8 @@ func program(args []string) int {
 	opt.String("color", "auto", opt.Description("show colored output"), opt.ValidValues("always", "auto", "never"))
 	opt.SetUnknownMode(getoptions.Pass)
 
+	opt.NewCommand("version", "Show version").SetCommandFn(printVersion())
+
 	configCMD(ctx, opt)
 	terraform.NewCommand(ctx, opt)
 	stack.NewCommand(ctx, opt)

bt/version.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"runtime"
+	"runtime/debug"
+
+	"github.com/DavidGamba/go-getoptions"
+)
+
+func printVersion() getoptions.CommandFn {
+	return func(context.Context, *getoptions.GetOpt, []string) error {
+		fmt.Printf("%15s %s\n", "go.version", runtime.Version())
+		info, ok := debug.ReadBuildInfo()
+		if !ok {
+			return fmt.Errorf("failed to read build info")
+		}
+		fmt.Printf("%15s %s\n", "module.path", info.Main.Path)
+		fmt.Printf("%15s %s\n", "module.version", info.Main.Version)
+		for _, s := range info.Settings {
+			if s.Value != "" {
+				fmt.Printf("%15s %s\n", s.Key, s.Value)
+			}
+		}
+		return nil
+	}
+}