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put-main.go
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put-main.go
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// Copyright (c) 2015-2024 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package cmd
import (
"context"
"strconv"
"strings"
"github.com/dustin/go-humanize"
"github.com/minio/cli"
"github.com/minio/mc/pkg/probe"
"github.com/minio/pkg/v2/console"
)
// put command flags.
var (
putFlags = []cli.Flag{
cli.IntFlag{
Name: "parallel, P",
Usage: "upload number of parts in parallel",
Value: 4,
},
cli.StringFlag{
Name: "part-size, s",
Usage: "each part size",
Value: "16MiB",
},
}
)
// Put command.
var putCmd = cli.Command{
Name: "put",
Usage: "upload an object to a bucket",
Action: mainPut,
OnUsageError: onUsageError,
Before: setGlobalsFromContext,
Flags: append(append(encFlags, globalFlags...), putFlags...),
CustomHelpTemplate: `NAME:
{{.HelpName}} - {{.Usage}}
USAGE:
{{.HelpName}} [FLAGS] SOURCE TARGET
FLAGS:
{{range .VisibleFlags}}{{.}}
{{end}}
ENVIRONMENT VARIABLES:
MC_ENC_KMS: KMS encryption key in the form of (alias/prefix=key).
MC_ENC_S3: S3 encryption key in the form of (alias/prefix=key).
EXAMPLES:
1. Put an object from local file system to S3 storage
{{.Prompt}} {{.HelpName}} path-to/object play/mybucket
2. Put an object from local file system to S3 bucket with name
{{.Prompt}} {{.HelpName}} path-to/object play/mybucket/object
3. Put an object from local file system to S3 bucket under a prefix
{{.Prompt}} {{.HelpName}} path-to/object play/mybucket/object-prefix/
4. Put an object to MinIO storage using sse-c encryption
{{.Prompt}} {{.HelpName}} --enc-c "play/mybucket/object=MDEyMzQ1Njc4OTAxMjM0NTY3ODkwMTIzNDU2Nzg5MDA" path-to/object play/mybucket/object
5. Put an object to MinIO storage using sse-kms encryption
{{.Prompt}} {{.HelpName}} --enc-kms path-to/object play/mybucket/object
`,
}
// mainPut is the entry point for put command.
func mainPut(cliCtx *cli.Context) (e error) {
args := cliCtx.Args()
if len(args) < 2 {
showCommandHelpAndExit(cliCtx, 1) // last argument is exit code.
}
ctx, cancelPut := context.WithCancel(globalContext)
defer cancelPut()
// part size
size := cliCtx.String("s")
if size == "" {
size = "16mb"
}
_, perr := humanize.ParseBytes(size)
if perr != nil {
fatalIf(probe.NewError(perr), "Unable to parse part size")
}
// threads
threads := cliCtx.Int("P")
if threads < 1 {
fatalIf(errInvalidArgument().Trace(strconv.Itoa(threads)), "Invalid number of threads")
}
// Parse encryption keys per command.
encryptionKeys, err := validateAndCreateEncryptionKeys(cliCtx)
if err != nil {
err.Trace(cliCtx.Args()...)
}
fatalIf(err, "SSE Error")
if len(args) < 2 {
fatalIf(errInvalidArgument().Trace(args...), "Invalid number of arguments.")
}
// get source and target
sourceURLs := args[:len(args)-1]
targetURL := args[len(args)-1]
putURLsCh := make(chan URLs, 10000)
var totalObjects, totalBytes int64
// Store a progress bar or an accounter
var pg ProgressReader
// Enable progress bar reader only during default mode.
if !globalQuiet && !globalJSON { // set up progress bar
pg = newProgressBar(totalBytes)
} else {
pg = newAccounter(totalBytes)
}
go func() {
opts := prepareCopyURLsOpts{
sourceURLs: sourceURLs,
targetURL: targetURL,
encKeyDB: encryptionKeys,
ignoreBucketExistsCheck: true,
}
for putURLs := range preparePutURLs(ctx, opts) {
if putURLs.Error != nil {
putURLsCh <- putURLs
break
}
totalBytes += putURLs.SourceContent.Size
pg.SetTotal(totalBytes)
totalObjects++
putURLsCh <- putURLs
}
close(putURLsCh)
}()
for {
select {
case <-ctx.Done():
showLastProgressBar(pg, nil)
return
case putURLs, ok := <-putURLsCh:
if !ok {
showLastProgressBar(pg, nil)
return
}
if putURLs.Error != nil {
printPutURLsError(&putURLs)
showLastProgressBar(pg, putURLs.Error.ToGoError())
return
}
urls := doCopy(ctx, doCopyOpts{
cpURLs: putURLs,
pg: pg,
encryptionKeys: encryptionKeys,
multipartSize: size,
multipartThreads: strconv.Itoa(threads),
})
if urls.Error != nil {
e = urls.Error.ToGoError()
showLastProgressBar(pg, e)
return
}
}
}
}
func printPutURLsError(putURLs *URLs) {
// Print in new line and adjust to top so that we
// don't print over the ongoing scan bar
if !globalQuiet && !globalJSON {
console.Eraseline()
}
if strings.Contains(putURLs.Error.ToGoError().Error(),
" is a folder.") {
errorIf(putURLs.Error.Trace(),
"Folder cannot be copied. Please use `...` suffix.")
} else {
errorIf(putURLs.Error.Trace(),
"Unable to upload.")
}
}
func showLastProgressBar(pg ProgressReader, e error) {
if e != nil {
// We only erase a line if we are displaying a progress bar
if !globalQuiet && !globalJSON {
console.Eraseline()
}
return
}
if progressReader, ok := pg.(*progressBar); ok {
progressReader.Finish()
} else {
if accntReader, ok := pg.(*accounter); ok {
printMsg(accntReader.Stat())
}
}
}