mirror of
https://github.com/minio/mc
synced 2026-08-29 14:37:42 -04:00
b7b75c5f46
app.Before receives a cli.Context but without flags parsed. There is no point calling ctx.Bool() or ctx.IsSet() at that stage. However, flags are parsed in commands, so minio initialization and setting global variables (globalJSON, globalQuiet, etc..) can be moved to the Before function of all commands. Avoid setting command.Before for non leaf commands, otherwise Before function will be called multiples times until it reaches the leaf command.
117 lines
3.4 KiB
Go
117 lines
3.4 KiB
Go
/*
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* MinIO Client (C) 2018-2019 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 cmd
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import (
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"fmt"
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"github.com/fatih/color"
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"github.com/minio/cli"
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json "github.com/minio/mc/pkg/colorjson"
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"github.com/minio/mc/pkg/probe"
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"github.com/minio/minio/pkg/console"
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)
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var adminServerUpdateCmd = cli.Command{
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Name: "update",
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Usage: "update all MinIO servers",
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Action: mainAdminServerUpdate,
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Before: initBeforeRunningCmd,
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Flags: globalFlags,
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CustomHelpTemplate: `NAME:
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{{.HelpName}} - {{.Usage}}
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USAGE:
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{{.HelpName}} TARGET
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FLAGS:
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{{range .VisibleFlags}}{{.}}
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{{end}}
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EXAMPLES:
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1. Update MinIO server represented by its alias 'play'.
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{{.Prompt}} {{.HelpName}} play/
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2. Update all MinIO servers in a distributed setup, represented by its alias 'mydist'.
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{{.Prompt}} {{.HelpName}} mydist/
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`,
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}
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// serverUpdateMessage is container for ServerUpdate success and failure messages.
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type serverUpdateMessage struct {
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Status string `json:"status"`
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ServerURL string `json:"serverURL"`
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CurrentVersion string `json:"currentVersion"`
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UpdatedVersion string `json:"updatedVersion"`
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}
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// String colorized serverUpdate message.
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func (s serverUpdateMessage) String() string {
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if s.CurrentVersion != s.UpdatedVersion {
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return console.Colorize("ServerUpdate",
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fmt.Sprintf("Server `%s` updated successfully from %s to %s",
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s.ServerURL, s.CurrentVersion, s.UpdatedVersion))
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}
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return console.Colorize("ServerUpdate",
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fmt.Sprintf("Server `%s` already running the most recent version %s of MinIO",
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s.ServerURL, s.CurrentVersion))
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}
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// JSON jsonified server update message.
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func (s serverUpdateMessage) JSON() string {
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serverUpdateJSONBytes, e := json.MarshalIndent(s, "", " ")
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fatalIf(probe.NewError(e), "Unable to marshal into JSON.")
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return string(serverUpdateJSONBytes)
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}
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// checkAdminServerUpdateSyntax - validate all the passed arguments
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func checkAdminServerUpdateSyntax(ctx *cli.Context) {
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if len(ctx.Args()) == 0 || len(ctx.Args()) > 2 {
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cli.ShowCommandHelpAndExit(ctx, "update", 1) // last argument is exit code
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}
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}
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func mainAdminServerUpdate(ctx *cli.Context) error {
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// Validate serivce update syntax.
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checkAdminServerUpdateSyntax(ctx)
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// Set color.
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console.SetColor("ServerUpdate", color.New(color.FgGreen, color.Bold))
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// Get the alias parameter from cli
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args := ctx.Args()
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aliasedURL := args.Get(0)
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client, err := newAdminClient(aliasedURL)
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fatalIf(err, "Unable to initialize admin connection.")
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updateURL := args.Get(1)
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// Update the specified MinIO server, optionally also
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// with the provided update URL.
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us, e := client.ServerUpdate(globalContext, updateURL)
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fatalIf(probe.NewError(e), "Unable to update the server.")
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// Success..
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printMsg(serverUpdateMessage{
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Status: "success",
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ServerURL: aliasedURL,
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CurrentVersion: us.CurrentVersion,
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UpdatedVersion: us.UpdatedVersion,
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})
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return nil
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}
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