feat(cmd/gno): pkgaddr subcommand

Signed-off-by: Norman <[email protected]>

gnovm/cmd/gno/main.go

@@ -35,6 +35,7 @@ func newGnocliCmd(io commands.IO) *commands.Command {
 		newEnvCmd(io),
 		newBugCmd(io),
 		newFmtCmd(io),
+		newPkgAddrCmd(io),
 		// graph
 		// vendor -- download deps from the chain in vendor/
 		// list -- list packages

gnovm/cmd/gno/pkgaddr.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/gnolang/gno/gnovm/pkg/gnolang"
+	"github.com/gnolang/gno/tm2/pkg/commands"
+)
+
+func newPkgAddrCmd(io commands.IO) *commands.Command {
+	return commands.NewCommand(
+		commands.Metadata{
+			Name:       "pkgaddr",
+			ShortUsage: "pkgaddr <pkgpath>",
+			ShortHelp:  "`pkgaddr` converts a package path to a package address",
+		},
+		nil,
+		func(_ context.Context, args []string) error {
+			return execPkgAddr(args, io)
+		},
+	)
+}
+
+func execPkgAddr(args []string, io commands.IO) error {
+	if len(args) != 1 {
+		return fmt.Errorf("expected 1 arg, got %d", len(args))
+	}
+
+	io.Println(gnolang.DerivePkgAddr(args[0]))
+
+	return nil
+}