/
mv-main.go
372 lines (312 loc) · 11.3 KB
/
mv-main.go
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/*
* MinIO Client (C) 2020 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 cmd
import (
"errors"
"fmt"
"os"
"sync"
"sync/atomic"
"github.com/fatih/color"
"github.com/minio/cli"
"github.com/minio/mc/pkg/probe"
"github.com/minio/minio/pkg/console"
)
// mv command flags.
var (
mvFlags = []cli.Flag{
cli.BoolFlag{
Name: "recursive, r",
Usage: "move recursively",
},
cli.StringFlag{
Name: "older-than",
Usage: "move objects older than L days, M hours and N minutes",
},
cli.StringFlag{
Name: "newer-than",
Usage: "move objects newer than L days, M hours and N minutes",
},
cli.StringFlag{
Name: "storage-class, sc",
Usage: "set storage class for new object(s) on target",
},
cli.StringFlag{
Name: "encrypt",
Usage: "encrypt/decrypt objects (using server-side encryption with server managed keys)",
},
cli.StringFlag{
Name: "attr",
Usage: "add custom metadata for the object",
},
cli.BoolFlag{
Name: "continue, c",
Usage: "create or resume move session",
},
cli.BoolFlag{
Name: "preserve, a",
Usage: "preserve filesystem attributes (mode, ownership, timestamps)",
},
cli.BoolFlag{
Name: "disable-multipart",
Usage: "disable multipart upload feature",
},
}
)
// Move command.
var mvCmd = cli.Command{
Name: "mv",
Usage: "move objects",
Action: mainMove,
Before: setGlobalsFromContext,
Flags: append(append(mvFlags, ioFlags...), globalFlags...),
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} [FLAGS] SOURCE [SOURCE...] TARGET
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
ENVIRONMENT VARIABLES:
MC_ENCRYPT: list of comma delimited prefixes
MC_ENCRYPT_KEY: list of comma delimited prefix=secret values
EXAMPLES:
01. Move a list of objects from local file system to Amazon S3 cloud storage.
{{.Prompt}} {{.HelpName}} Music/*.ogg s3/jukebox/
02. Move a folder recursively from MinIO cloud storage to Amazon S3 cloud storage.
{{.Prompt}} {{.HelpName}} --recursive play/mybucket/burningman2011/ s3/mybucket/
03. Move multiple local folders recursively to MinIO cloud storage.
{{.Prompt}} {{.HelpName}} --recursive backup/2014/ backup/2015/ play/archive/
04. Move a bucket recursively from aliased Amazon S3 cloud storage to local filesystem on Windows.
{{.Prompt}} {{.HelpName}} --recursive s3\documents\2014\ C:\Backups\2014
05. Move files older than 7 days and 10 hours from MinIO cloud storage to Amazon S3 cloud storage.
{{.Prompt}} {{.HelpName}} --older-than 7d10h play/mybucket/burningman2011/ s3/mybucket/
06. Move files newer than 7 days and 10 hours from MinIO cloud storage to a local path.
{{.Prompt}} {{.HelpName}} --newer-than 7d10h play/mybucket/burningman2011/ ~/latest/
07. Move an object with name containing unicode characters to Amazon S3 cloud storage.
{{.Prompt}} {{.HelpName}} 本語 s3/andoria/
08. Move a local folder with space separated characters to Amazon S3 cloud storage.
{{.Prompt}} {{.HelpName}} --recursive 'workdir/documents/May 2014/' s3/miniocloud
09. Move a folder with encrypted objects recursively from Amazon S3 to MinIO cloud storage.
{{.Prompt}} {{.HelpName}} --recursive --encrypt-key "s3/documents/=32byteslongsecretkeymustbegiven1,myminio/documents/=32byteslongsecretkeymustbegiven2" s3/documents/ myminio/documents/
10. Move a folder with encrypted objects recursively from Amazon S3 to MinIO cloud storage. In case the encryption key contains non-printable character like tab, pass the
base64 encoded string as key.
{{.Prompt}} {{.HelpName}} --recursive --encrypt-key "s3/documents/=MzJieXRlc2xvbmdzZWNyZWFiY2RlZmcJZ2l2ZW5uMjE=,myminio/documents/=MzJieXRlc2xvbmdzZWNyZWFiY2RlZmcJZ2l2ZW5uMjE=" s3/documents/ myminio/documents/
11. Move a list of objects from local file system to MinIO cloud storage with specified metadata, separated by ";"
{{.Prompt}} {{.HelpName}} --attr "key1=value1;key2=value2" Music/*.mp4 play/mybucket/
12. Move a folder recursively from MinIO cloud storage to Amazon S3 cloud storage with Cache-Control and custom metadata, separated by ";".
{{.Prompt}} {{.HelpName}} --attr "Cache-Control=max-age=90000,min-fresh=9000;key1=value1;key2=value2" --recursive play/mybucket/burningman2011/ s3/mybucket/
13. Move a text file to an object storage and assign REDUCED_REDUNDANCY storage-class to the uploaded object.
{{.Prompt}} {{.HelpName}} --storage-class REDUCED_REDUNDANCY myobject.txt play/mybucket
14. Move a text file to an object storage and create or resume copy session.
{{.Prompt}} {{.HelpName}} --recursive --continue dir/ play/mybucket
15. Move a text file to an object storage and preserve the file system attribute as metadata.
{{.Prompt}} {{.HelpName}} -a myobject.txt play/mybucket
16. Move a text file to an object storage and disable multipart upload feature.
{{.Prompt}} {{.HelpName}} --disable-multipart myobject.txt play/mybucket
`,
}
type removeClientInfo struct {
client Client
contentCh chan *ClientContent
errorCh <-chan *probe.Error
}
type removeManager struct {
removeMap map[string]*removeClientInfo
removeMapMutex sync.RWMutex
doneCh chan struct{}
isClosed int32
wg sync.WaitGroup
}
func (rm *removeManager) readErrors(errorCh <-chan *probe.Error, targetURL string) {
rm.wg.Add(1)
go func() {
defer rm.wg.Done()
var stop bool
for !stop {
select {
case pErr, ok := <-errorCh:
if ok {
errorIf(pErr.Trace(targetURL), "Failed to remove in`"+targetURL+"`.")
}
case <-rm.doneCh:
stop = true
}
}
for pErr := range errorCh {
if pErr != nil {
errorIf(pErr.Trace(targetURL), "Failed to remove in `"+targetURL+"`.")
}
}
}()
}
func (rm *removeManager) add(targetAlias, targetURL string) {
if atomic.LoadInt32(&rm.isClosed) != 0 {
return
}
rm.removeMapMutex.RLock()
clientInfo := rm.removeMap[targetAlias]
rm.removeMapMutex.RUnlock()
if clientInfo == nil {
client, pErr := newClientFromAlias(targetAlias, targetURL)
if pErr != nil {
errorIf(pErr.Trace(targetURL), "Invalid argument `"+targetURL+"`.")
return
}
contentCh := make(chan *ClientContent)
errorCh := client.Remove(false, false, false, contentCh)
rm.readErrors(errorCh, targetURL)
clientInfo = &removeClientInfo{
client: client,
contentCh: contentCh,
errorCh: errorCh,
}
rm.removeMapMutex.Lock()
rm.removeMap[targetAlias] = clientInfo
rm.removeMapMutex.Unlock()
}
go func() {
clientInfo.contentCh <- &ClientContent{URL: *newClientURL(targetURL)}
}()
}
func (rm *removeManager) close() {
atomic.StoreInt32(&rm.isClosed, 1)
rm.removeMapMutex.Lock()
defer rm.removeMapMutex.Unlock()
for _, clientInfo := range rm.removeMap {
close(clientInfo.contentCh)
}
close(rm.doneCh)
rm.wg.Wait()
}
var rmManager = &removeManager{
removeMap: make(map[string]*removeClientInfo),
doneCh: make(chan struct{}),
}
func bgRemove(url string) {
remove := func(targetAlias, targetURL string) {
clnt, pErr := newClientFromAlias(targetAlias, targetURL)
if pErr != nil {
errorIf(pErr.Trace(url), "Invalid argument `"+url+"`.")
}
contentCh := make(chan *ClientContent, 1)
contentCh <- &ClientContent{URL: *newClientURL(targetURL)}
close(contentCh)
errorCh := clnt.Remove(false, false, false, contentCh)
for pErr := range errorCh {
if pErr != nil {
errorIf(pErr.Trace(url), "Failed to remove `"+url+"`.")
switch pErr.ToGoError().(type) {
case PathInsufficientPermission:
// Ignore Permission error.
continue
}
}
}
}
targetAlias, targetURL, _ := mustExpandAlias(url)
if targetAlias == "" {
// File system does not support batch deletion hence use individual deletion.
go remove(targetAlias, targetURL)
return
}
rmManager.add(targetAlias, targetURL)
}
// mainMove is the entry point for mv command.
func mainMove(ctx *cli.Context) error {
// Parse encryption keys per command.
encKeyDB, err := getEncKeys(ctx)
fatalIf(err, "Unable to parse encryption keys.")
// Parse metadata.
userMetaMap := make(map[string]string)
if ctx.String("attr") != "" {
userMetaMap, err = getMetaDataEntry(ctx.String("attr"))
fatalIf(err, "Unable to parse attribute %v", ctx.String("attr"))
}
// check 'copy' cli arguments.
checkCopySyntax(ctx, encKeyDB, true)
if ctx.NArg() == 2 {
args := ctx.Args()
srcURL := args.Get(0)
dstURL := args.Get(1)
if srcURL == dstURL {
fatalIf(probe.NewError(errors.New("")), fmt.Sprintf("Source and destination urls cannot be the same: %v.", srcURL))
}
}
for _, urlStr := range ctx.Args() {
client, err := newClient(urlStr)
if err != nil {
fatalIf(err.Trace(), "Cannot parse the provided url.")
}
if s3Client, ok := client.(*S3Client); ok {
if _, _, _, err = s3Client.GetObjectLockConfig(); err == nil {
fatalIf(probe.NewError(errors.New("")), fmt.Sprintf("Object lock configuration is enabled on the specified bucket in alias %v.", urlStr))
}
}
}
// Additional command speific theme customization.
console.SetColor("Copy", color.New(color.FgGreen, color.Bold))
recursive := ctx.Bool("recursive")
olderThan := ctx.String("older-than")
newerThan := ctx.String("newer-than")
storageClass := ctx.String("storage-class")
sseKeys := os.Getenv("MC_ENCRYPT_KEY")
if key := ctx.String("encrypt-key"); key != "" {
sseKeys = key
}
if sseKeys != "" {
sseKeys, err = getDecodedKey(sseKeys)
fatalIf(err, "Unable to parse encryption keys.")
}
sse := ctx.String("encrypt")
var session *sessionV8
if ctx.Bool("continue") {
sessionID := getHash("mv", ctx.Args())
if isSessionExists(sessionID) {
session, err = loadSessionV8(sessionID)
fatalIf(err.Trace(sessionID), "Unable to load session.")
} else {
session = newSessionV8(sessionID)
session.Header.CommandType = "mv"
session.Header.CommandBoolFlags["recursive"] = recursive
session.Header.CommandStringFlags["older-than"] = olderThan
session.Header.CommandStringFlags["newer-than"] = newerThan
session.Header.CommandStringFlags["storage-class"] = storageClass
session.Header.CommandStringFlags["encrypt-key"] = sseKeys
session.Header.CommandStringFlags["encrypt"] = sse
session.Header.CommandBoolFlags["session"] = ctx.Bool("continue")
if ctx.Bool("preserve") {
session.Header.CommandBoolFlags["preserve"] = ctx.Bool("preserve")
}
session.Header.UserMetaData = userMetaMap
session.Header.CommandBoolFlags["disable-multipart"] = ctx.Bool("disable-multipart")
var e error
if session.Header.RootPath, e = os.Getwd(); e != nil {
session.Delete()
fatalIf(probe.NewError(e), "Unable to get current working folder.")
}
// extract URLs.
session.Header.CommandArgs = ctx.Args()
}
}
e := doCopySession(ctx, session, encKeyDB, true)
if session != nil {
session.Delete()
}
console.Colorize("Copy", "Waiting for move operations to complete")
rmManager.close()
return e
}