forked from minio/mc
/
main.go
178 lines (158 loc) · 5.17 KB
/
main.go
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/*
* Minio Client (C) 2014, 2015 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"
"os/user"
"runtime"
"strconv"
"github.com/minio/cli"
"github.com/minio/mc/pkg/console"
"github.com/minio/pb"
)
// Check for the environment early on and gracefully report.
func checkConfig() {
_, err := user.Current()
if err != nil {
console.Fatalf("Unable to determine current user. %s\n", err)
}
// Ensures config file is sane
_, err = getMcConfig()
if err != nil {
console.Fatalf("Unable to read config file. %s\n", err)
}
}
func migrate() {
// Migrate config files if any.
migrateConfig()
// Migrate session files if any.
migrateSession()
}
// Get os/arch/platform specific information.
// Returns a map of current os/arch/platform/memstats
func getSystemData() map[string]string {
host, err := os.Hostname()
if err != nil {
console.Fatalf("Unable to determine hostname. %s\n", err)
}
memstats := &runtime.MemStats{}
runtime.ReadMemStats(memstats)
mem := fmt.Sprintf("Used: %s | Allocated: %s | UsedHeap: %s | AllocatedHeap: %s",
pb.FormatBytes(int64(memstats.Alloc)),
pb.FormatBytes(int64(memstats.TotalAlloc)),
pb.FormatBytes(int64(memstats.HeapAlloc)),
pb.FormatBytes(int64(memstats.HeapSys)))
platform := fmt.Sprintf("Host: %s | OS: %s | Arch: %s", host, runtime.GOOS, runtime.GOARCH)
goruntime := fmt.Sprintf("Version: %s | CPUs: %s", runtime.Version(), strconv.Itoa(runtime.NumCPU()))
return map[string]string{
"PLATFORM": platform,
"RUNTIME": goruntime,
"MEM": mem,
"TAG": Tag,
}
}
func registerBefore(ctx *cli.Context) error {
setMcConfigDir(ctx.GlobalString("config"))
globalQuietFlag = ctx.GlobalBool("quiet")
globalForceFlag = ctx.GlobalBool("force")
globalAliasFlag = ctx.GlobalBool("alias")
globalDebugFlag = ctx.GlobalBool("debug")
globalJSONFlag = ctx.GlobalBool("json")
themeName := ctx.GlobalString("theme")
if globalDebugFlag {
console.NoDebugPrint = false
}
switch {
case console.IsValidTheme(themeName) != true:
console.Errorf("Invalid theme, please choose from the following list: %s.\n", console.GetThemeNames())
return errInvalidTheme{Theme: themeName}
default:
err := console.SetTheme(themeName)
if err != nil {
console.Errorf("Failed to set theme ‘%s’.", themeName)
return err
}
}
// Migrate any old version of config / state files to newer format.
migrate()
checkConfig()
return nil
}
func registerApp() *cli.App {
// Register all the commands
registerCmd(lsCmd) // List contents of a bucket
registerCmd(mbCmd) // make a bucket
registerCmd(catCmd) // concantenate an object to standard output
registerCmd(cpCmd) // copy objects and files from multiple sources to single destination
registerCmd(castCmd) // cast objects and files from single source to multiple destinations
registerCmd(sessionCmd) // session handling for resuming copy and cast operations
registerCmd(diffCmd) // compare two objects
registerCmd(accessCmd) // set permissions [public, private, readonly, authenticated] for buckets and folders.
registerCmd(configCmd) // generate configuration "/home/harsha/.mc/config.json" file.
registerCmd(updateCmd) // update Check for new software updates
// register all the flags
registerFlag(configFlag) // path to config folder
registerFlag(quietFlag) // suppress console output
registerFlag(forceFlag) // force copying data
registerFlag(aliasFlag) // OS toolchain mimic
registerFlag(themeFlag) // console theme flag
registerFlag(jsonFlag) // json formatted output
registerFlag(debugFlag) // enable debugging output
app := cli.NewApp()
app.Usage = "Minio Client for cloud storage and filesystems"
app.Version = getVersion()
app.Commands = commands
app.Compiled = getVersion()
app.Flags = flags
app.Author = "Minio.io"
app.CustomAppHelpTemplate = `NAME:
{{.Name}} - {{.Usage}}
USAGE:
{{.Name}} {{if .Flags}}[global flags] {{end}}command{{if .Flags}} [command flags]{{end}} [arguments...]
COMMANDS:
{{range .Commands}}{{join .Names ", "}}{{ "\t" }}{{.Usage}}
{{end}}{{if .Flags}}
GLOBAL FLAGS:
{{range .Flags}}{{.}}
{{end}}{{end}}
VERSION:
{{if .Compiled}}
{{.Compiled}}{{end}}
{{range $key, $value := ExtraInfo}}
{{$key}}:
{{$value}}
{{end}}
`
app.CommandNotFound = func(ctx *cli.Context, command string) {
console.Fatalf("Command not found: ‘%s’\n", command)
}
return app
}
func main() {
firstTimeRun()
// Enable GOMAXPROCS to default to number of CPUs.
runtime.GOMAXPROCS(runtime.NumCPU())
app := registerApp()
app.Before = registerBefore
app.ExtraInfo = func() map[string]string {
if globalDebugFlag {
return getSystemData()
}
return make(map[string]string)
}
app.RunAndExitOnError()
}