d57ec001f4
* MinIO CLI and Releaser. * Fix goreleaser * Build docker properly. tags for kqueue on mac * Dockerfile for release * Fix docker release
140 lines
3.6 KiB
Go
140 lines
3.6 KiB
Go
// This file is part of MinIO Console Server
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// Copyright (c) 2020 MinIO, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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package main
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import (
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"os"
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"path/filepath"
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"sort"
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"github.com/minio/m3/mcs/pkg"
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"github.com/minio/minio/pkg/console"
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"github.com/minio/minio/pkg/trie"
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"github.com/minio/minio/pkg/words"
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"github.com/minio/cli"
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)
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// Help template for m3.
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var mcsHelpTemplate = `NAME:
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{{.Name}} - {{.Usage}}
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DESCRIPTION:
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{{.Description}}
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USAGE:
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{{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}COMMAND{{if .VisibleFlags}}{{end}} [ARGS...]
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COMMANDS:
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{{range .VisibleCommands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
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{{end}}{{if .VisibleFlags}}
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FLAGS:
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{{range .VisibleFlags}}{{.}}
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{{end}}{{end}}
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VERSION:
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{{.Version}}
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`
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var appCmds = []cli.Command{
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serverCmd,
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versionCmd,
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}
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func newApp(name string) *cli.App {
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// Collection of m3 commands currently supported are.
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commands := []cli.Command{}
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// Collection of m3 commands currently supported in a trie tree.
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commandsTree := trie.NewTrie()
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// registerCommand registers a cli command.
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registerCommand := func(command cli.Command) {
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commands = append(commands, command)
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commandsTree.Insert(command.Name)
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}
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// register commands
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for _, cmd := range appCmds {
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registerCommand(cmd)
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}
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findClosestCommands := func(command string) []string {
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var closestCommands []string
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for _, value := range commandsTree.PrefixMatch(command) {
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closestCommands = append(closestCommands, value.(string))
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}
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sort.Strings(closestCommands)
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// Suggest other close commands - allow missed, wrongly added and
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// even transposed characters
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for _, value := range commandsTree.Walk(commandsTree.Root()) {
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if sort.SearchStrings(closestCommands, value.(string)) < len(closestCommands) {
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continue
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}
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// 2 is arbitrary and represents the max
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// allowed number of typed errors
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if words.DamerauLevenshteinDistance(command, value.(string)) < 2 {
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closestCommands = append(closestCommands, value.(string))
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}
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}
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return closestCommands
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}
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cli.HelpFlag = cli.BoolFlag{
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Name: "help, h",
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Usage: "show help",
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}
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app := cli.NewApp()
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app.Name = name
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app.Version = pkg.Version
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app.Author = "MinIO, Inc."
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app.Usage = "mcs COMMAND"
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app.Description = `MinIO Console Server`
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app.Commands = commands
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app.HideHelpCommand = true // Hide `help, h` command, we already have `minio --help`.
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app.CustomAppHelpTemplate = mcsHelpTemplate
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app.CommandNotFound = func(ctx *cli.Context, command string) {
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console.Printf("‘%s’ is not a mcs sub-command. See ‘mcs --help’.\n", command)
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closestCommands := findClosestCommands(command)
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if len(closestCommands) > 0 {
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console.Println()
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console.Println("Did you mean one of these?")
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for _, cmd := range closestCommands {
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console.Printf("\t‘%s’\n", cmd)
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}
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}
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os.Exit(1)
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}
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return app
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}
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func main() {
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args := os.Args
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// Set the orchestrator app name.
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appName := filepath.Base(args[0])
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// Run the app - exit on error.
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if err := newApp(appName).Run(args); err != nil {
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os.Exit(1)
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}
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}
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