add delete command

cmd/mstdn/cmd_delete.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"strconv"
+
+	"github.com/mattn/go-mastodon"
+	"github.com/urfave/cli"
+)
+
+func cmdDelete(c *cli.Context) error {
+	client := c.App.Metadata["client"].(*mastodon.Client)
+	if !c.Args().Present() {
+		return errors.New("arguments required")
+	}
+	for i := 0; i < c.NArg(); i++ {
+		id, err := strconv.ParseInt(c.Args().Get(i), 10, 64)
+		if err != nil {
+			return err
+		}
+		err = client.DeleteStatus(context.Background(), id)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}