2016-10-05 21:48:07 +02:00
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/*
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* Minio Cloud Storage, (C) 2016 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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"sync"
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humanize "github.com/dustin/go-humanize"
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"github.com/minio/mc/pkg/console"
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)
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// Helper to generate integer sequences into a friendlier user consumable format.
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func int2Str(i int, t int) string {
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if i < 10 {
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if t < 10 {
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return fmt.Sprintf("0%d/0%d", i, t)
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}
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return fmt.Sprintf("0%d/%d", i, t)
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}
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return fmt.Sprintf("%d/%d", i, t)
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}
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// Print a given message once.
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type printOnceFunc func(msg string)
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// Print once is a constructor returning a function printing once.
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// internally print uses sync.Once to perform exactly one action.
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func printOnceFn() printOnceFunc {
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var once sync.Once
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return func(msg string) {
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once.Do(func() { console.Println(msg) })
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}
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}
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// Prints custom message when healing is required for XL and Distributed XL backend.
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func printHealMsg(firstEndpoint string, storageDisks []StorageAPI, fn printOnceFunc) {
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msg := getHealMsg(firstEndpoint, storageDisks)
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fn(msg)
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}
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// Constructs a formatted heal message, when cluster is found to be in state where it requires healing.
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// healing is optional, server continues to initialize object layer after printing this message.
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// it is upto the end user to perform a heal if needed.
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func getHealMsg(firstEndpoint string, storageDisks []StorageAPI) string {
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msg := fmt.Sprintln("\nData volume requires HEALING. Please run the following command:")
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msg += "MINIO_ACCESS_KEY=%s "
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msg += "MINIO_SECRET_KEY=%s "
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msg += "minio control heal %s"
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creds := serverConfig.GetCredential()
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msg = fmt.Sprintf(msg, creds.AccessKeyID, creds.SecretAccessKey, firstEndpoint)
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disksInfo, _, _ := getDisksInfo(storageDisks)
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for i, info := range disksInfo {
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2016-10-17 23:31:33 +02:00
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if storageDisks[i] == nil {
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continue
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}
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2016-10-05 21:48:07 +02:00
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msg += fmt.Sprintf(
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"\n[%s] %s - %s %s",
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int2Str(i+1, len(storageDisks)),
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storageDisks[i],
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humanize.IBytes(uint64(info.Total)),
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func() string {
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if info.Total > 0 {
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return "online"
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}
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return "offline"
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}(),
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)
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}
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return msg
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}
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// Prints regular message when we have sufficient disks to start the cluster.
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func printRegularMsg(storageDisks []StorageAPI, fn printOnceFunc) {
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msg := getRegularMsg(storageDisks)
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fn(msg)
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}
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// Constructs a formatted regular message when we have sufficient disks to start the cluster.
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func getRegularMsg(storageDisks []StorageAPI) string {
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msg := colorBlue("\nInitializing data volume.")
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disksInfo, _, _ := getDisksInfo(storageDisks)
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for i, info := range disksInfo {
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2016-10-17 23:31:33 +02:00
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if storageDisks[i] == nil {
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continue
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}
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2016-10-05 21:48:07 +02:00
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msg += fmt.Sprintf(
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"\n[%s] %s - %s %s",
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int2Str(i+1, len(storageDisks)),
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storageDisks[i],
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humanize.IBytes(uint64(info.Total)),
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func() string {
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if info.Total > 0 {
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return "online"
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}
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return "offline"
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}(),
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)
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}
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return msg
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}
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// Prints initialization message when cluster is being initialized for the first time.
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func printFormatMsg(storageDisks []StorageAPI, fn printOnceFunc) {
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msg := getFormatMsg(storageDisks)
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fn(msg)
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}
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// Generate a formatted message when cluster is being initialized for the first time.
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func getFormatMsg(storageDisks []StorageAPI) string {
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msg := colorBlue("\nInitializing data volume for the first time.")
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disksInfo, _, _ := getDisksInfo(storageDisks)
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for i, info := range disksInfo {
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2016-10-17 23:31:33 +02:00
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if storageDisks[i] == nil {
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continue
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}
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2016-10-05 21:48:07 +02:00
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msg += fmt.Sprintf(
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"\n[%s] %s - %s %s",
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int2Str(i+1, len(storageDisks)),
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storageDisks[i],
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humanize.IBytes(uint64(info.Total)),
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func() string {
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if info.Total > 0 {
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return "online"
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}
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return "offline"
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}(),
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)
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}
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return msg
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}
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2016-10-07 20:15:55 +02:00
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func printConfigErrMsg(storageDisks []StorageAPI, sErrs []error, fn printOnceFunc) {
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msg := getConfigErrMsg(storageDisks, sErrs)
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fn(msg)
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}
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// Generate a formatted message when cluster is misconfigured.
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func getConfigErrMsg(storageDisks []StorageAPI, sErrs []error) string {
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msg := colorBlue("\nDetected configuration inconsistencies in the cluster. Please fix following servers.")
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for i, disk := range storageDisks {
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if disk == nil {
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continue
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}
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if sErrs[i] == nil {
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continue
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}
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msg += fmt.Sprintf(
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"\n[%s] %s : %s",
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int2Str(i+1, len(storageDisks)),
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storageDisks[i],
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sErrs[i],
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)
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}
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return msg
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}
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