minio/update-main.go
2015-10-17 15:04:54 -07:00

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/*
* Minio Cloud Storage, (C) 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 (
"encoding/json"
"errors"
"net/http"
"net/url"
"runtime"
"strings"
"time"
"github.com/fatih/color"
"github.com/minio/cli"
"github.com/minio/minio-xl/pkg/probe"
)
// Check for new software updates.
var updateCmd = cli.Command{
Name: "update",
Usage: "Check for new software updates.",
Action: mainUpdate,
CustomHelpTemplate: `Name:
minio {{.Name}} - {{.Usage}}
USAGE:
minio {{.Name}} release
minio {{.Name}} experimental
EXAMPLES:
1. Check for new official releases
$ minio {{.Name}} release
2. Check for new experimental releases
$ minio {{.Name}} experimental
`,
}
// updates container to hold updates json
type updates struct {
BuildDate string
Platforms map[string]string
}
// updateMessage container to hold update messages
type updateMessage struct {
Update bool `json:"update"`
Download string `json:"downloadURL"`
Version string `json:"version"`
}
// String colorized update message
func (u updateMessage) String() string {
if u.Update {
var msg string
if runtime.GOOS == "windows" {
msg = "Download " + u.Download
} else {
msg = "Download " + u.Download
}
msg, err := colorizeUpdateMessage(msg)
fatalIf(err.Trace(msg), "Unable to colorize experimental update notification string "+msg+".", nil)
return msg
}
updateMessage := color.New(color.FgGreen, color.Bold).SprintfFunc()
return updateMessage("You are already running the most recent version of minio.")
}
// JSON jsonified update message
func (u updateMessage) JSON() string {
updateMessageJSONBytes, err := json.Marshal(u)
fatalIf(probe.NewError(err), "Unable to marshal into JSON.", nil)
return string(updateMessageJSONBytes)
}
func getExperimentalUpdate() {
current, e := time.Parse(http.TimeFormat, minioVersion)
fatalIf(probe.NewError(e), "Unable to parse Version string as time.", nil)
if current.IsZero() {
fatalIf(probe.NewError(errors.New("")), "Experimental updates are not supported for custom build. Version field is empty. Please download official releases from https://dl.minio.io:9000", nil)
}
resp, err := http.Get(minioExperimentalURL)
fatalIf(probe.NewError(err), "Unable to initalize experimental URL.", nil)
var experimentals updates
decoder := json.NewDecoder(resp.Body)
defer resp.Body.Close()
e = decoder.Decode(&experimentals)
fatalIf(probe.NewError(e), "Unable to decode experimental update notification.", nil)
latest, e := time.Parse(http.TimeFormat, experimentals.BuildDate)
fatalIf(probe.NewError(e), "Unable to parse BuildDate.", nil)
if latest.IsZero() {
fatalIf(probe.NewError(errors.New("")), "Unable to validate any experimental update available at this time. Please open an issue at https://github.com/minio/minio/issues", nil)
}
minioExperimentalURLParse, err := url.Parse(minioExperimentalURL)
if err != nil {
fatalIf(probe.NewError(err), "Unable to parse URL: "+minioExperimentalURL, nil)
}
downloadURL := minioExperimentalURLParse.Scheme + "://" + minioExperimentalURLParse.Host + "/" + experimentals.Platforms[runtime.GOOS]
updateMessage := updateMessage{
Download: downloadURL,
Version: minioVersion,
}
if latest.After(current) {
updateMessage.Update = true
}
if globalJSONFlag {
Println(updateMessage.JSON())
} else {
Println(updateMessage)
}
}
func getReleaseUpdate() {
current, e := time.Parse(http.TimeFormat, minioVersion)
fatalIf(probe.NewError(e), "Unable to parse Version string as time.", nil)
if current.IsZero() {
fatalIf(probe.NewError(errors.New("")), "Updates not supported for custom build. Version field is empty. Please download official releases from https://dl.minio.io:9000", nil)
}
resp, err := http.Get(minioUpdateURL)
fatalIf(probe.NewError(err), "Unable to initalize experimental URL.", nil)
var releases updates
decoder := json.NewDecoder(resp.Body)
e = decoder.Decode(&releases)
fatalIf(probe.NewError(e), "Unable to decode update notification.", nil)
latest, e := time.Parse(http.TimeFormat, releases.BuildDate)
fatalIf(probe.NewError(e), "Unable to parse BuildDate.", nil)
if latest.IsZero() {
fatalIf(probe.NewError(errors.New("")), "Unable to validate any update available at this time. Please open an issue at https://github.com/minio/minio/issues", nil)
}
minioUpdateURLParse, err := url.Parse(minioUpdateURL)
if err != nil {
fatalIf(probe.NewError(err), "Unable to parse URL: "+minioUpdateURL, nil)
}
downloadURL := minioUpdateURLParse.Scheme + "://" + minioUpdateURLParse.Host + "/" + releases.Platforms[runtime.GOOS]
updateMessage := updateMessage{
Download: downloadURL,
Version: minioVersion,
}
if latest.After(current) {
updateMessage.Update = true
}
if globalJSONFlag {
Println(updateMessage.JSON())
} else {
Println(updateMessage)
}
}
const (
minioUpdateURL = "https://dl.minio.io:9000/updates/minio/updates.json"
minioExperimentalURL = "https://dl.minio.io:9000/updates/minio/experimental.json"
)
func checkUpdateSyntax(ctx *cli.Context) {
if ctx.Args().First() == "help" || !ctx.Args().Present() {
cli.ShowCommandHelpAndExit(ctx, "update", 1) // last argument is exit code
}
arg := strings.TrimSpace(ctx.Args().First())
if arg != "release" && arg != "experimental" {
fatalIf(probe.NewError(errInvalidArgument), "Unrecognized argument provided.", nil)
}
}
// mainUpdate -
func mainUpdate(ctx *cli.Context) {
checkUpdateSyntax(ctx)
arg := strings.TrimSpace(ctx.Args().First())
switch arg {
case "release":
getReleaseUpdate()
case "experimental":
getExperimentalUpdate()
}
}