/* * Copyright (c) 2020 Alex aka mailoman * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * @author Alex aka mailoman * @copyright Copyright (c) 2020 Alex aka mailoman * @since 08.01.2020 * */ package main import ( "flag" ) // shamelessly snagged from the go tool // each command gets its own set of args, // defines its own entry point, and provides its own help type Command struct { Run func(cmd *Command, args ...string) Flag flag.FlagSet Name string Usage string Summary string Help string } func (c *Command) Exec(args []string) { c.Flag.Usage = func() { // helpFunc(c, c.Name) } c.Flag.Parse(args) c.Run(c, c.Flag.Args()...) }