bake: add force and version commands

bake/main.go

@@ -8,15 +8,22 @@ import (
 	"io"
 	"log"
 	"os"
+	"path/filepath"
+	"runtime"
+	"runtime/debug"
 
+	"github.com/DavidGamba/dgtools/buildutils"
 	"github.com/DavidGamba/dgtools/run"
 	"github.com/DavidGamba/go-getoptions"
 )
 
 //go:embed templates/*.go.gotmpl
 var templates embed.FS
 
-const generatedMainFilename = "generated_bake.go"
+const (
+	version               = "0.1.0"
+	generatedMainFilename = "generated_bake.go"
+)
 
 var InputArgs []string
 var Dir string
@@ -84,6 +91,12 @@ func program(args []string) int {
 	binit := b.NewCommand("init", "initialize a new bake project")
 	binit.SetCommandFn(initRun(dir))
 
+	bforce := b.NewCommand("force", "force rebuild of the generated bake file and the binary on the next run")
+	bforce.SetCommandFn(InvalidateCache(dir))
+
+	bversion := b.NewCommand("version", "print the version of bake")
+	bversion.SetCommandFn(Version(dir))
+
 	opt.HelpCommand("help", opt.Alias("?"))
 	remaining, err := opt.Parse(args[1:])
 	if err != nil {
@@ -111,3 +124,33 @@ func PrintFuncDeclRun(dir string) getoptions.CommandFn {
 		return nil
 	}
 }
+
+func InvalidateCache(dir string) getoptions.CommandFn {
+	return func(ctx context.Context, opt *getoptions.GetOpt, args []string) error {
+		fmt.Printf("Invalidating bake cache...\n")
+		err := buildutils.Touch(filepath.Join(dir, "go.mod"))
+		if err != nil {
+			return fmt.Errorf("failed to invalidate cache: %w", err)
+		}
+		return nil
+	}
+}
+
+func Version(dir string) getoptions.CommandFn {
+	return func(ctx context.Context, opt *getoptions.GetOpt, args []string) error {
+		fmt.Printf("bake version %s\n", version)
+		info, ok := debug.ReadBuildInfo()
+		if !ok {
+			return fmt.Errorf("failed to read build info")
+		}
+		fmt.Printf("go version %s\n", runtime.Version())
+
+		fmt.Printf("%16s %s\n", "module.path", info.Main.Path)
+		for _, s := range info.Settings {
+			if s.Value != "" {
+				fmt.Printf("%16s %s\n", s.Key, s.Value)
+			}
+		}
+		return nil
+	}
+}