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/*
* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
*
* 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.
*/
package main
import (
"fmt"
"os"
"path/filepath"
"sort"
"github.com/minio/cli"
"github.com/minio/mc/pkg/console"
"github.com/pkg/profile"
)
var (
// global flags for minio.
minioFlags = []cli.Flag{
cli.BoolFlag{
Name: "help, h",
Usage: "Show help.",
},
}
)
// Help template for minio.
var minioHelpTemplate = `NAME:
{{.Name}} - {{.Usage}}
DESCRIPTION:
{{.Description}}
USAGE:
minio {{if .Flags}}[flags] {{end}}command{{if .Flags}}{{end}} [arguments...]
COMMANDS:
{{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
{{end}}{{if .Flags}}
FLAGS:
{{range .Flags}}{{.}}
{{end}}{{end}}
VERSION:
` + minioVersion +
`{{ "\n"}}`
// init - check the environment before main starts
func init() {
// Check if minio was compiled using a supported version of Golang.
checkGoVersion()
// Set global trace flag.
globalTrace = os.Getenv("MINIO_TRACE") == "1"
}
func migrate() {
// Migrate config file
migrateConfig()
// Migrate other configs here.
}
func enableLoggers() {
// Enable all loggers here.
enableConsoleLogger()
enableFileLogger()
// Add your logger here.
}
func findClosestCommands(command string) []string {
var closestCommands []string
for _, value := range commandsTree.PrefixMatch(command) {
closestCommands = append(closestCommands, value.(string))
}
sort.Strings(closestCommands)
// Suggest other close commands - allow missed, wrongly added and
// even transposed characters
for _, value := range commandsTree.walk(commandsTree.root) {
if sort.SearchStrings(closestCommands, value.(string)) < len(closestCommands) {
continue
}
// 2 is arbitrary and represents the max
// allowed number of typed errors
if DamerauLevenshteinDistance(command, value.(string)) < 2 {
closestCommands = append(closestCommands, value.(string))
}
}
return closestCommands
}
func registerApp() *cli.App {
// Register all commands.
registerCommand(serverCmd)
registerCommand(versionCmd)
registerCommand(updateCmd)
// Set up app.
app := cli.NewApp()
app.Name = "Minio"
app.Author = "Minio.io"
app.Usage = "Cloud Storage Server."
app.Description = `Minio is an Amazon S3 compatible object storage server. Use it to store photos, videos, VMs, containers, log files, or any blob of data as objects.`
app.Flags = append(minioFlags, globalFlags...)
app.Commands = commands
app.CustomAppHelpTemplate = minioHelpTemplate
app.CommandNotFound = func(ctx *cli.Context, command string) {
msg := fmt.Sprintf("‘%s’ is not a minio sub-command. See ‘minio --help’.", command)
closestCommands := findClosestCommands(command)
if len(closestCommands) > 0 {
msg += fmt.Sprintf("\n\nDid you mean one of these?\n")
for _, cmd := range closestCommands {
msg += fmt.Sprintf(" ‘%s’\n", cmd)
}
}
console.Fatalln(msg)
}
return app
}
func checkMainSyntax(c *cli.Context) {
configPath, err := getConfigPath()
if err != nil {
console.Fatalf("Unable to obtain user's home directory. \nError: %s\n", err)
}
if configPath == "" {
console.Fatalln("Config folder cannot be empty, please specify --config-dir <foldername>.")
}
}
// mustGetProfilePath must get location that the profile will be written to.
func mustGetProfilePath() string {
return filepath.Join(mustGetConfigPath(), g
63F2
lobalMinioProfilePath)
}
func main() {
app := registerApp()
app.Before = func(c *cli.Context) error {
// Sets new config folder.
setGlobalConfigPath(c.GlobalString("config-dir"))
// Valid input arguments to main.
checkMainSyntax(c)
// Migrate any old version of config / state files to newer format.
migrate()
// Initialize config.
err := initConfig()
fatalIf(err, "Unable to initialize minio config.")
// Enable all loggers by now.
enableLoggers()
// Initialize name space lock.
initNSLock()
// Set global quiet flag.
globalQuiet = c.Bool("quiet") || c.GlobalBool("quiet")
// Do not print update messages, if quiet flag is set.
if !globalQuiet {
// Do not print any errors in release update function.
noError := true
updateMsg := getReleaseUpdate(minioUpdateStableURL, noError)
if updateMsg.Update {
console.Println(updateMsg)
}
}
return nil
}
// Set ``MINIO_PROFILE_DIR`` to the directory where profiling information should be persisted
profileDir := os.Getenv("MINIO_PROFILE_DIR")
// Enable profiler if ``MINIO_PROFILER`` is set. Supported options are [cpu, mem, block].
switch os.Getenv("MINIO_PROFILER") {
case "cpu":
defer profile.Start(profile.CPUProfile, profile.ProfilePath(profileDir)).Stop()
case "mem":
defer profile.Start(profile.MemProfile, profile.ProfilePath(profileDir)).Stop()
case "block":
defer profile.Start(profile.BlockProfile, profile.ProfilePath(profileDir)).Stop()
}
// Run the app - exit on error.
app.RunAndExitOnError()
}