Download files in parallel

This commit is contained in:
M. Mert Yildiran 2023-06-29 16:45:59 +03:00
parent 98738cb5a6
commit aeda619104
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GPG Key ID: DA5D6DCBB758A461

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@ -12,11 +12,13 @@ import (
"os"
"path/filepath"
"strings"
"sync"
"github.com/aws/aws-sdk-go-v2/aws"
awsConfig "github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/feature/s3/manager"
"github.com/aws/aws-sdk-go-v2/service/s3"
s3Types "github.com/aws/aws-sdk-go-v2/service/s3/types"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/client"
@ -330,33 +332,39 @@ func downloadTarFromS3(s3Url string) (tarPath string, err error) {
return
}
var wg sync.WaitGroup
for _, object := range listObjectsOutput.Contents {
objectKey := *object.Key
wg.Add(1)
go func(object s3Types.Object) {
defer wg.Done()
objectKey := *object.Key
fullPath := filepath.Join(tempDirPath, objectKey)
err = os.MkdirAll(filepath.Dir(fullPath), os.ModePerm)
if err != nil {
return
}
fullPath := filepath.Join(tempDirPath, objectKey)
err = os.MkdirAll(filepath.Dir(fullPath), os.ModePerm)
if err != nil {
return
}
var objectFile *os.File
objectFile, err = os.Create(fullPath)
if err != nil {
return
}
defer objectFile.Close()
var objectFile *os.File
objectFile, err = os.Create(fullPath)
if err != nil {
return
}
defer objectFile.Close()
log.Info().Str("bucket", bucket).Str("key", objectKey).Msg("Downloading from S3")
log.Info().Str("bucket", bucket).Str("key", objectKey).Msg("Downloading from S3")
downloader := manager.NewDownloader(client)
_, err = downloader.Download(context.TODO(), objectFile, &s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(objectKey),
})
if err != nil {
return
}
downloader := manager.NewDownloader(client)
_, err = downloader.Download(context.TODO(), objectFile, &s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String(objectKey),
})
if err != nil {
return
}
}(object)
}
wg.Wait()
tarPath, err = tarDirectory(tempDirPath)
return