main.go

package main

import (
	"fmt"
	"os"
	"sort"
	"strings"

	"github.com/urfave/cli/v2"
	"go.uber.org/zap"

	"rmk/commands"
	"rmk/logger"
)

var (
	builtBy   string
	commit    string
	date      string
	name      string
	target    string
	timestamp string
	version   string
)

// Override default help template parsing with add [GLOBAL OPTIONS] for all commands and subcommands
func init() {
	var output string

	for _, val := range commands.FlagsGlobal() {
		output += fmt.Sprintf("   %s\n", val.String())
	}

	cli.CommandHelpTemplate += `
GLOBAL OPTIONS:
` + output + `{{range $index, $option := .VisibleFlags}}{{if eq $option.Name "help"}}{{"   "}}{{$option}}{{end}}{{end}}
`

	cli.SubcommandHelpTemplate += `
GLOBAL OPTIONS:
` + output + `{{range $index, $option := .VisibleFlags}}{{if eq $option.Name "help"}}{{"   "}}{{$option}}{{end}}{{end}}
`

	cli.MarkdownDocTemplate = `{{if gt .SectionNum 0}}% {{ .App.Name }} {{ .SectionNum }}

{{end}}# NAME

` + strings.ToUpper(name) + ` CLI{{ if .App.Usage }} - {{ .App.Usage }}{{ end }}

## SYNOPSIS

{{ .App.Name }}
{{ if .SynopsisArgs }}
` + "```" + `
{{ range $v := .SynopsisArgs }}{{ $v }}{{ end }}` + "```" + `
{{ end }}{{ if .App.Description }}
## DESCRIPTION

Command line tool for reduced management of the provision of Kubernetes clusters in different environments and management of service releases.

**BuiltBy:** ` + builtBy + ` <br />
**Commit:** ` + commit + ` <br />
**Date:** ` + date + ` <br />
**Target:** ` + target + `
{{ end }}
**Usage**:

` + "```" + `{{ if .App.UsageText }}
{{ .App.UsageText }}
{{ else }}
{{ .App.Name }} [GLOBAL OPTIONS] command [COMMAND OPTIONS] [ARGUMENTS...]
{{ end }}` + "```" + `
{{ if .GlobalArgs }}
## GLOBAL OPTIONS
{{ range $v := .GlobalArgs }}
{{ $v }}{{ end }}
{{ end }}{{ if .Commands }}
## COMMANDS
{{ range $v := .Commands }}
#{{ $v }}{{ end }}{{ end }}`
}

func runCLI() *cli.App {
	app := cli.NewApp()
	app.Name = name
	app.Description = "Command line tool for reduced management of the " +
		"provision of Kubernetes clusters in different environments and management of service releases." +
		fmt.Sprintf("\nBuiltBy: %s\nCommit: %s\nDate: %s\nTarget: %s",
			builtBy, commit, date, target)
	app.Usage = "Reduced management for Kubernetes"
	app.Version = version
	app.Metadata = map[string]interface{}{
		"binaryName": name + "_" + target,
		"timestamp":  timestamp,
		"version":    version,
	}

	app.Flags = commands.FlagsGlobal()
	app.Before = func(c *cli.Context) error {
		logger.Init(c.String("log-format"), c.String("log-level"))
		return nil
	}

	// Enable command auto-completion (the --generate-bash-completion flag is provided out of box)
	// Incompatible with UseShortOptionHandling option
	app.EnableBashCompletion = true
	// Enable flag and command suggestions
	app.Suggest = true

	app.Commands = commands.Commands()
	sort.Sort(cli.CommandsByName(app.Commands))

	return app
}

func main() {
	err := runCLI().Run(os.Args)
	if err != nil {
		zap.S().Fatal(err)
	}
}