dump.go

// -*- go -*-
////////////////////////////////////////////////////////////////////////////
// Program: dump
// Purpose: dump assistant program
////////////////////////////////////////////////////////////////////////////

package main

import (
	"fmt"
	"github.com/mkideal/cli"
	clix "github.com/mkideal/cli/ext"
	"os"
)

////////////////////////////////////////////////////////////////////////////
// dump

type rootT struct {
	cli.Helper
}

var root = &cli.Command{
	Name: "dump",
	Desc: "dump assistant program",
	Text: "Swiss-army assistant toolkit",
	Argv: func() interface{} { return new(rootT) },
	Fn:   dump,

	NumArg: cli.ExactN(1),
}

func main() {
	cli.SetUsageStyle(cli.ManualStyle) // up-down, for left-right, use NormalStyle
	//NOTE: You can set any writer implements io.Writer
	// default writer is os.Stdout
	if err := cli.Root(root,
		cli.Tree(dumpDef)).Run(os.Args[1:]); err != nil {
		fmt.Fprintln(os.Stderr, err)
	}
	fmt.Println("")
}

func dump(ctx *cli.Context) error {
	ctx.JSON(ctx.RootArgv())
	ctx.JSON(ctx.Argv())
	fmt.Println()

	return nil
}

////////////////////////////////////////////////////////////////////////////
// dump

type dumpT struct {
	Filei clix.Reader `cli:"*i,input" usage:"The file to dump from (mandatory)"`
	Fileo clix.Writer `cli:"o,output" usage:"The dump output (default: .dump file of input)"`
	ID    bool        `cli:"id" usage:"Dump ID as well"`
}

var dumpDef = &cli.Command{
	Name: "dump",
	Desc: "*Dump as text-only file",
	Argv: func() interface{} { return new(dumpT) },
	Fn:   dumpCLI,

	NumOption: cli.AtLeast(1),
}

func dumpCLI(ctx *cli.Context) error {
	rootArgv := ctx.RootArgv().(*rootT)
	argv := ctx.Argv().(*dumpT)
	fmt.Printf("[dump]:\n  %+v\n  %+v\n  %v\n", rootArgv, argv, ctx.Args())
	return nil
}

dump.yaml

# program name, name for the executable
ProgramName: dump

PackageName: main

Name: dump
Desc: "dump assistant program"
Text: Swiss-army assistant toolkit
NumArg: cli.ExactN(1)

Command:

  - Name: dump
    Desc: "*Dump as text-only file"
    NumOption: cli.AtLeast(1)
    
    Options:
      - Name: Filei
        Type: clix.Reader
        Flag: '*i,input'
        Usage: The file to dump from (mandatory)

      - Name: Fileo
        Type: clix.Writer
        Flag: o,output
        Usage: 'The dump output (default: .dump file of input)'

      - Name: ID
        Type: bool
        Flag: id
        Usage: Dump ID as well