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172 lines
4.6 KiB
172 lines
4.6 KiB
/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"fmt"
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"os"
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"os/user"
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"runtime"
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"strconv"
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"github.com/dustin/go-humanize"
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"github.com/minio/cli"
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)
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// serverConfig - http server config
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type serverConfig struct {
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/// HTTP server options
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Address string // Address:Port listening
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Anonymous bool // No signature turn off
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/// FS options
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Path string // Path to export for cloud storage
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MinFreeDisk int64 // Minimum free disk space for filesystem
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// TLS service
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TLS bool // TLS on when certs are specified
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CertFile string // Domain certificate
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KeyFile string // Domain key
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/// Advanced HTTP server options
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RateLimit int // Ratelimited server of incoming connections
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}
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func init() {
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// Check for the environment early on and gracefuly report.
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_, err := user.Current()
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if err != nil {
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Fatalf("Unable to obtain user's home directory. \nError: %s\n", err)
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}
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if os.Geteuid() == 0 {
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Fatalln("Please run ‘minio’ as a non-root user.")
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}
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// Check if minio was compiled using a supported version of Golang.
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checkGolangRuntimeVersion()
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}
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// Tries to get os/arch/platform specific information
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// Returns a map of current os/arch/platform/memstats
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func getSystemData() map[string]string {
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host, err := os.Hostname()
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if err != nil {
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host = ""
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}
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memstats := &runtime.MemStats{}
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runtime.ReadMemStats(memstats)
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mem := fmt.Sprintf("Used: %s | Allocated: %s | Used-Heap: %s | Allocated-Heap: %s",
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humanize.Bytes(memstats.Alloc),
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humanize.Bytes(memstats.TotalAlloc),
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humanize.Bytes(memstats.HeapAlloc),
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humanize.Bytes(memstats.HeapSys))
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platform := fmt.Sprintf("Host: %s | OS: %s | Arch: %s",
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host,
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runtime.GOOS,
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runtime.GOARCH)
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goruntime := fmt.Sprintf("Version: %s | CPUs: %s", runtime.Version(), strconv.Itoa(runtime.NumCPU()))
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return map[string]string{
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"PLATFORM": platform,
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"RUNTIME": goruntime,
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"MEM": mem,
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}
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}
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func findClosestCommands(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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return closestCommands
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}
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func registerApp() *cli.App {
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// register all commands
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registerCommand(serverCmd)
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registerCommand(versionCmd)
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registerCommand(updateCmd)
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// register all flags
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registerFlag(addressFlag)
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registerFlag(ratelimitFlag)
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registerFlag(anonymousFlag)
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registerFlag(certFlag)
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registerFlag(keyFlag)
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registerFlag(jsonFlag)
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// set up app
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app := cli.NewApp()
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app.Name = "Minio"
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// hide --version flag, version is a command
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app.HideVersion = true
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app.Author = "Minio.io"
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app.Usage = "Cloud Storage Server for Micro Services."
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app.Description = `Micro services environment provisions one Minio server per application instance. Scalability is achieved to through large number of smaller personalized instances. This version of the Minio binary is built using Filesystem storage backend for magnetic and solid state disks.`
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app.Flags = flags
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app.Commands = commands
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app.CustomAppHelpTemplate = `NAME:
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{{.Name}} - {{.Usage}}
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USAGE:
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minio {{if .Flags}}[flags] {{end}}command{{if .Flags}}{{end}} [arguments...]
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DESCRIPTION:
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{{.Description}}
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COMMANDS:
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{{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
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{{end}}{{if .Flags}}
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FLAGS:
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{{range .Flags}}{{.}}
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{{end}}{{end}}
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VERSION:
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` + minioVersion +
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`
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{{range $key, $value := ExtraInfo}}
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{{$key}}:
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{{$value}}
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{{end}}
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`
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app.CommandNotFound = func(ctx *cli.Context, command string) {
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msg := fmt.Sprintf("‘%s’ is not a minio sub-command. See ‘minio help’.", command)
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closestCommands := findClosestCommands(command)
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if len(closestCommands) > 0 {
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msg += fmt.Sprintf("\n\nDid you mean one of these?\n")
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for _, cmd := range closestCommands {
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msg += fmt.Sprintf(" ‘%s’\n", cmd)
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}
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}
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Fatalln(msg)
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}
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return app
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}
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func main() {
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app := registerApp()
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app.Before = func(c *cli.Context) error {
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globalJSONFlag = c.GlobalBool("json")
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return nil
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}
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app.ExtraInfo = func() map[string]string {
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return getSystemData()
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}
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app.RunAndExitOnError()
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}
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