This patch brings in the removal of debug logging altogether, instead we bring in the functionality of being able to trace the errors properly pointing back to the origination of the problem. To enable tracing you need to enable "MINIO_TRACE" set to "1" or "true" environment variable which would print back traces whenever there is an error which is unhandled or at the handler layer. By default this tracing is turned off and only user level logging is provided.
241 lines
6.6 KiB
Go
241 lines
6.6 KiB
Go
/*
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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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"encoding/json"
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"errors"
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"io/ioutil"
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"net/http"
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"runtime"
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"strings"
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"time"
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"github.com/fatih/color"
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"github.com/minio/cli"
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"github.com/minio/mc/pkg/console"
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)
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// command specific flags.
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var (
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updateFlags = []cli.Flag{
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cli.BoolFlag{
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Name: "help, h",
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Usage: "Help for update.",
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},
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cli.BoolFlag{
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Name: "experimental, E",
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Usage: "Check experimental update.",
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},
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}
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)
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// Check for new software updates.
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var updateCmd = cli.Command{
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Name: "update",
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Usage: "Check for a new software update.",
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Action: mainUpdate,
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Flags: updateFlags,
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CustomHelpTemplate: `Name:
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minio {{.Name}} - {{.Usage}}
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USAGE:
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minio {{.Name}} [FLAGS]
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FLAGS:
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{{range .Flags}}{{.}}
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{{end}}
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EXAMPLES:
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1. Check for any new official release.
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$ minio {{.Name}}
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2. Check for any new experimental release.
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$ minio {{.Name}} --experimental
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`,
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}
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// update URL endpoints.
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const (
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minioUpdateStableURL = "https://dl.minio.io/server/minio/release/"
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minioUpdateExperimentalURL = "https://dl.minio.io/server/minio/experimental/"
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)
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// updateMessage container to hold update messages.
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type updateMessage struct {
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Status string `json:"status"`
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Update bool `json:"update"`
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Download string `json:"downloadURL"`
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Version string `json:"version"`
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}
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// String colorized update message.
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func (u updateMessage) String() string {
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if !u.Update {
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updateMessage := color.New(color.FgGreen, color.Bold).SprintfFunc()
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return updateMessage("You are already running the most recent version of ‘minio’.")
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}
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msg, err := colorizeUpdateMessage(u.Download)
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fatalIf(err, "Unable to colorize update notice ‘"+msg+"’.")
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return msg
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}
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// JSON jsonified update message.
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func (u updateMessage) JSON() string {
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u.Status = "success"
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updateMessageJSONBytes, err := json.Marshal(u)
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fatalIf((err), "Unable to marshal into JSON.")
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return string(updateMessageJSONBytes)
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}
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func parseReleaseData(data string) (time.Time, error) {
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releaseStr := strings.Fields(data)
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if len(releaseStr) < 2 {
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return time.Time{}, errors.New("Update data malformed")
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}
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releaseDate := releaseStr[1]
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releaseDateSplits := strings.SplitN(releaseDate, ".", 3)
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if len(releaseDateSplits) < 3 {
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return time.Time{}, (errors.New("Update data malformed"))
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}
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if releaseDateSplits[0] != "minio" {
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return time.Time{}, (errors.New("Update data malformed, missing minio tag"))
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}
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// "OFFICIAL" tag is still kept for backward compatibility, we should remove this for the next release.
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if releaseDateSplits[1] != "RELEASE" && releaseDateSplits[1] != "OFFICIAL" {
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return time.Time{}, (errors.New("Update data malformed, missing RELEASE tag"))
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}
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dateSplits := strings.SplitN(releaseDateSplits[2], "T", 2)
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if len(dateSplits) < 2 {
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return time.Time{}, (errors.New("Update data malformed, not in modified RFC3359 form"))
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}
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dateSplits[1] = strings.Replace(dateSplits[1], "-", ":", -1)
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date := strings.Join(dateSplits, "T")
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parsedDate, err := time.Parse(time.RFC3339, date)
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if err != nil {
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return time.Time{}, err
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}
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return parsedDate, nil
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}
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// verify updates for releases.
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func getReleaseUpdate(updateURL string, noError bool) updateMessage {
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// Construct a new update url.
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newUpdateURLPrefix := updateURL + "/" + runtime.GOOS + "-" + runtime.GOARCH
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newUpdateURL := newUpdateURLPrefix + "/minio.shasum"
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// Get the downloadURL.
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var downloadURL string
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switch runtime.GOOS {
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case "windows":
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// For windows.
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downloadURL = newUpdateURLPrefix + "/minio.exe"
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default:
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// For all other operating systems.
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downloadURL = newUpdateURLPrefix + "/minio"
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}
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// Initialize update message.
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updateMsg := updateMessage{
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Download: downloadURL,
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Version: minioVersion,
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}
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// Instantiate a new client with 1 sec timeout.
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client := &http.Client{
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Timeout: 1 * time.Millisecond,
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}
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// Fetch new update.
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data, err := client.Get(newUpdateURL)
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if err != nil && noError {
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return updateMsg
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}
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fatalIf((err), "Unable to read from update URL ‘"+newUpdateURL+"’.")
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// Error out if 'update' command is issued for development based builds.
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if minioVersion == "DEVELOPMENT.GOGET" && !noError {
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fatalIf((errors.New("")),
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"Update mechanism is not supported for ‘go get’ based binary builds. Please download official releases from https://minio.io/#minio")
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}
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// Parse current minio version into RFC3339.
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current, err := time.Parse(time.RFC3339, minioVersion)
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if err != nil && noError {
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return updateMsg
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}
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fatalIf((err), "Unable to parse version string as time.")
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// Verify if current minio version is zero.
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if current.IsZero() && !noError {
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fatalIf((errors.New("")),
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"Updates mechanism is not supported for custom builds. Please download official releases from https://minio.io/#minio")
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}
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// Verify if we have a valid http response i.e http.StatusOK.
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if data != nil {
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if data.StatusCode != http.StatusOK {
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// Return quickly if noError is set.
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if noError {
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return updateMsg
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}
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fatalIf((errors.New("")), "Failed to retrieve update notice. "+data.Status)
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}
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}
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// Read the response body.
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updateBody, err := ioutil.ReadAll(data.Body)
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if err != nil && noError {
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return updateMsg
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}
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fatalIf((err), "Failed to retrieve update notice. Please try again later.")
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// Parse the date if its valid.
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latest, err := parseReleaseData(string(updateBody))
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if err != nil && noError {
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return updateMsg
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}
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errMsg := "Failed to retrieve update notice. Please try again later. Please report this issue at https://github.com/minio/minio/issues"
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fatalIf(err, errMsg)
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// Verify if the date is not zero.
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if latest.IsZero() && !noError {
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fatalIf((errors.New("")), errMsg)
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}
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// Is the update latest?.
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if latest.After(current) {
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updateMsg.Update = true
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}
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// Return update message.
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return updateMsg
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}
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// main entry point for update command.
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func mainUpdate(ctx *cli.Context) {
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// Print all errors as they occur.
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noError := false
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// Check for update.
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if ctx.Bool("experimental") {
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console.Println(getReleaseUpdate(minioUpdateExperimentalURL, noError))
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} else {
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console.Println(getReleaseUpdate(minioUpdateStableURL, noError))
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}
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}
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