mirror of
https://github.com/go-gitea/gitea
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436 lines
14 KiB
Go
436 lines
14 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package container
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"os"
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"strings"
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"time"
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"code.gitea.io/gitea/models/db"
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packages_model "code.gitea.io/gitea/models/packages"
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container_model "code.gitea.io/gitea/models/packages/container"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/globallock"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/log"
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packages_module "code.gitea.io/gitea/modules/packages"
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container_module "code.gitea.io/gitea/modules/packages/container"
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"code.gitea.io/gitea/modules/util"
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notify_service "code.gitea.io/gitea/services/notify"
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packages_service "code.gitea.io/gitea/services/packages"
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container_service "code.gitea.io/gitea/services/packages/container"
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"github.com/opencontainers/go-digest"
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oci "github.com/opencontainers/image-spec/specs-go/v1"
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)
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// manifestCreationInfo describes a manifest to create
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type manifestCreationInfo struct {
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MediaType string
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Owner *user_model.User
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Creator *user_model.User
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Image string
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Reference string
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IsTagged bool
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Properties map[string]string
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}
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func processManifest(ctx context.Context, mci *manifestCreationInfo, buf *packages_module.HashedBuffer) (string, error) {
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var index oci.Index
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if err := json.NewDecoder(buf).Decode(&index); err != nil {
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return "", err
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}
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if index.SchemaVersion != 2 {
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return "", errUnsupported.WithMessage("Schema version is not supported")
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}
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if _, err := buf.Seek(0, io.SeekStart); err != nil {
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return "", err
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}
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if !container_module.IsMediaTypeValid(mci.MediaType) {
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mci.MediaType = index.MediaType
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if !container_module.IsMediaTypeValid(mci.MediaType) {
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return "", errManifestInvalid.WithMessage("MediaType not recognized")
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}
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}
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// .../container/manifest.go:453:createManifestBlob() [E] Error inserting package blob: Error 1062 (23000): Duplicate entry '..........' for key 'package_blob.UQE_package_blob_md5'
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releaser, err := globallock.Lock(ctx, containerGlobalLockKey(mci.Owner.ID, mci.Image, "manifest"))
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if err != nil {
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return "", err
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}
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defer releaser()
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if container_module.IsMediaTypeImageManifest(mci.MediaType) {
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return processOciImageManifest(ctx, mci, buf)
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} else if container_module.IsMediaTypeImageIndex(mci.MediaType) {
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return processOciImageIndex(ctx, mci, buf)
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}
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return "", errManifestInvalid
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}
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type processManifestTxRet struct {
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pv *packages_model.PackageVersion
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pb *packages_model.PackageBlob
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created bool
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digest string
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}
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func handleCreateManifestResult(ctx context.Context, err error, mci *manifestCreationInfo, contentStore *packages_module.ContentStore, txRet *processManifestTxRet) (string, error) {
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if err != nil && txRet.created && txRet.pb != nil {
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if err := contentStore.Delete(packages_module.BlobHash256Key(txRet.pb.HashSHA256)); err != nil {
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log.Error("Error deleting package blob from content store: %v", err)
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}
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return "", err
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}
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pd, err := packages_model.GetPackageDescriptor(ctx, txRet.pv)
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if err != nil {
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log.Error("Error getting package descriptor: %v", err) // ignore this error
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} else {
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notify_service.PackageCreate(ctx, mci.Creator, pd)
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}
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return txRet.digest, nil
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}
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func processOciImageManifest(ctx context.Context, mci *manifestCreationInfo, buf *packages_module.HashedBuffer) (manifestDigest string, errRet error) {
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manifest, configDescriptor, metadata, err := container_service.ParseManifestMetadata(ctx, buf, mci.Owner.ID, mci.Image)
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if err != nil {
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return "", err
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}
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if _, err = buf.Seek(0, io.SeekStart); err != nil {
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return "", err
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}
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contentStore := packages_module.NewContentStore()
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var txRet processManifestTxRet
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err = db.WithTx(ctx, func(ctx context.Context) (err error) {
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blobReferences := make([]*blobReference, 0, 1+len(manifest.Layers))
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blobReferences = append(blobReferences, &blobReference{
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Digest: manifest.Config.Digest,
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MediaType: manifest.Config.MediaType,
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File: configDescriptor,
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ExpectedSize: manifest.Config.Size,
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})
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for _, layer := range manifest.Layers {
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pfd, err := container_model.GetContainerBlob(ctx, &container_model.BlobSearchOptions{
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OwnerID: mci.Owner.ID,
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Image: mci.Image,
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Digest: string(layer.Digest),
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})
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if err != nil {
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return err
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}
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blobReferences = append(blobReferences, &blobReference{
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Digest: layer.Digest,
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MediaType: layer.MediaType,
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File: pfd,
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ExpectedSize: layer.Size,
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})
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}
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pv, err := createPackageAndVersion(ctx, mci, metadata)
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if err != nil {
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return err
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}
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uploadVersion, err := packages_model.GetInternalVersionByNameAndVersion(ctx, mci.Owner.ID, packages_model.TypeContainer, mci.Image, container_module.UploadVersion)
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if err != nil && !errors.Is(err, packages_model.ErrPackageNotExist) {
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return err
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}
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for _, ref := range blobReferences {
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if _, err = createFileFromBlobReference(ctx, pv, uploadVersion, ref); err != nil {
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return err
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}
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}
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txRet.pv = pv
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txRet.pb, txRet.created, txRet.digest, err = createManifestBlob(ctx, contentStore, mci, pv, buf)
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return err
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})
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return handleCreateManifestResult(ctx, err, mci, contentStore, &txRet)
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}
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func processOciImageIndex(ctx context.Context, mci *manifestCreationInfo, buf *packages_module.HashedBuffer) (manifestDigest string, errRet error) {
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var index oci.Index
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if err := json.NewDecoder(buf).Decode(&index); err != nil {
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return "", err
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}
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if _, err := buf.Seek(0, io.SeekStart); err != nil {
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return "", err
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}
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contentStore := packages_module.NewContentStore()
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var txRet processManifestTxRet
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err := db.WithTx(ctx, func(ctx context.Context) (err error) {
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metadata := &container_module.Metadata{
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Type: container_module.TypeOCI,
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Manifests: make([]*container_module.Manifest, 0, len(index.Manifests)),
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}
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for _, manifest := range index.Manifests {
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if !container_module.IsMediaTypeImageManifest(manifest.MediaType) {
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return errManifestInvalid
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}
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platform := container_module.DefaultPlatform
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if manifest.Platform != nil {
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platform = fmt.Sprintf("%s/%s", manifest.Platform.OS, manifest.Platform.Architecture)
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if manifest.Platform.Variant != "" {
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platform = fmt.Sprintf("%s/%s", platform, manifest.Platform.Variant)
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}
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}
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pfd, err := container_model.GetContainerBlob(ctx, &container_model.BlobSearchOptions{
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OwnerID: mci.Owner.ID,
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Image: mci.Image,
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Digest: string(manifest.Digest),
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IsManifest: true,
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})
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if err != nil {
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if errors.Is(err, container_model.ErrContainerBlobNotExist) {
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return errManifestBlobUnknown
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}
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return err
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}
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size, err := packages_model.CalculateFileSize(ctx, &packages_model.PackageFileSearchOptions{
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VersionID: pfd.File.VersionID,
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})
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if err != nil {
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return err
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}
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metadata.Manifests = append(metadata.Manifests, &container_module.Manifest{
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Platform: platform,
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Digest: string(manifest.Digest),
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Size: size,
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})
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}
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pv, err := createPackageAndVersion(ctx, mci, metadata)
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if err != nil {
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return err
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}
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txRet.pv = pv
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txRet.pb, txRet.created, txRet.digest, err = createManifestBlob(ctx, contentStore, mci, pv, buf)
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return err
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})
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return handleCreateManifestResult(ctx, err, mci, contentStore, &txRet)
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}
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func createPackageAndVersion(ctx context.Context, mci *manifestCreationInfo, metadata *container_module.Metadata) (*packages_model.PackageVersion, error) {
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created := true
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p := &packages_model.Package{
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OwnerID: mci.Owner.ID,
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Type: packages_model.TypeContainer,
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Name: strings.ToLower(mci.Image),
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LowerName: strings.ToLower(mci.Image),
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}
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var err error
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if p, err = packages_model.TryInsertPackage(ctx, p); err != nil {
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if !errors.Is(err, packages_model.ErrDuplicatePackage) {
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log.Error("Error inserting package: %v", err)
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return nil, err
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}
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created = false
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}
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if created {
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if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypePackage, p.ID, container_module.PropertyRepository, strings.ToLower(mci.Owner.LowerName+"/"+mci.Image)); err != nil {
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log.Error("Error setting package property: %v", err)
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return nil, err
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}
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}
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metadata.IsTagged = mci.IsTagged
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metadataJSON, err := json.Marshal(metadata)
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if err != nil {
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return nil, err
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}
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_pv := &packages_model.PackageVersion{
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PackageID: p.ID,
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CreatorID: mci.Creator.ID,
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Version: strings.ToLower(mci.Reference),
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LowerVersion: strings.ToLower(mci.Reference),
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MetadataJSON: string(metadataJSON),
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}
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pv, err := packages_model.GetOrInsertVersion(ctx, _pv)
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if err != nil {
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if !errors.Is(err, packages_model.ErrDuplicatePackageVersion) {
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log.Error("Error inserting package: %v", err)
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return nil, err
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}
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if container_module.IsMediaTypeImageIndex(mci.MediaType) {
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if pv.CreatedUnix.AsTime().Before(time.Now().Add(-24 * time.Hour)) {
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if err = packages_service.DeletePackageVersionAndReferences(ctx, pv); err != nil {
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return nil, err
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}
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// keep download count on overwriting
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_pv.DownloadCount = pv.DownloadCount
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if pv, err = packages_model.GetOrInsertVersion(ctx, _pv); err != nil {
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if !errors.Is(err, packages_model.ErrDuplicatePackageVersion) {
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log.Error("Error inserting package: %v", err)
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return nil, err
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}
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}
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} else {
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err = packages_model.UpdateVersion(ctx, &packages_model.PackageVersion{ID: pv.ID, MetadataJSON: _pv.MetadataJSON})
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if err != nil {
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return nil, err
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}
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}
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}
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}
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if err := packages_service.CheckCountQuotaExceeded(ctx, mci.Creator, mci.Owner); err != nil {
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return nil, err
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}
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if mci.IsTagged {
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if err = packages_model.InsertOrUpdateProperty(ctx, packages_model.PropertyTypeVersion, pv.ID, container_module.PropertyManifestTagged, ""); err != nil {
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return nil, err
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}
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} else {
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if err = packages_model.DeletePropertiesByName(ctx, packages_model.PropertyTypeVersion, pv.ID, container_module.PropertyManifestTagged); err != nil {
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return nil, err
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}
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}
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if err = packages_model.DeletePropertiesByName(ctx, packages_model.PropertyTypeVersion, pv.ID, container_module.PropertyManifestReference); err != nil {
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return nil, err
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}
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for _, manifest := range metadata.Manifests {
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if _, err = packages_model.InsertProperty(ctx, packages_model.PropertyTypeVersion, pv.ID, container_module.PropertyManifestReference, manifest.Digest); err != nil {
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return nil, err
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}
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}
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return pv, nil
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}
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type blobReference struct {
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Digest digest.Digest
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MediaType string
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Name string
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File *packages_model.PackageFileDescriptor
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ExpectedSize int64
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IsLead bool
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}
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func createFileFromBlobReference(ctx context.Context, pv, uploadVersion *packages_model.PackageVersion, ref *blobReference) (*packages_model.PackageFile, error) {
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if ref.File.Blob.Size != ref.ExpectedSize {
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return nil, errSizeInvalid
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}
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if ref.Name == "" {
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ref.Name = strings.ToLower("sha256_" + ref.File.Blob.HashSHA256)
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}
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pf := &packages_model.PackageFile{
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VersionID: pv.ID,
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BlobID: ref.File.Blob.ID,
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Name: ref.Name,
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LowerName: ref.Name,
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CompositeKey: string(ref.Digest),
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IsLead: ref.IsLead,
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}
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var err error
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if pf, err = packages_model.TryInsertFile(ctx, pf); err != nil {
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if errors.Is(err, packages_model.ErrDuplicatePackageFile) {
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// Skip this blob because the manifest contains the same filesystem layer multiple times.
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return pf, nil
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}
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log.Error("Error inserting package file: %v", err)
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return nil, err
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}
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props := map[string]string{
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container_module.PropertyMediaType: ref.MediaType,
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container_module.PropertyDigest: string(ref.Digest),
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}
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for name, value := range props {
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if _, err := packages_model.InsertProperty(ctx, packages_model.PropertyTypeFile, pf.ID, name, value); err != nil {
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log.Error("Error setting package file property: %v", err)
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return nil, err
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}
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}
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// Remove the ref file (old file) from the blob upload version
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if uploadVersion != nil && ref.File.File != nil && uploadVersion.ID == ref.File.File.VersionID {
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if err := packages_service.DeletePackageFile(ctx, ref.File.File); err != nil {
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return nil, err
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}
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}
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return pf, nil
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}
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func createManifestBlob(ctx context.Context, contentStore *packages_module.ContentStore, mci *manifestCreationInfo, pv *packages_model.PackageVersion, buf *packages_module.HashedBuffer) (_ *packages_model.PackageBlob, created bool, manifestDigest string, _ error) {
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pb, exists, err := packages_model.GetOrInsertBlob(ctx, packages_service.NewPackageBlob(buf))
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if err != nil {
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log.Error("Error inserting package blob: %v", err)
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return nil, false, "", err
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}
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// FIXME: Workaround to be removed in v1.20
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// https://github.com/go-gitea/gitea/issues/19586
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if exists {
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err = contentStore.Has(packages_module.BlobHash256Key(pb.HashSHA256))
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if err != nil && (errors.Is(err, util.ErrNotExist) || errors.Is(err, os.ErrNotExist)) {
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log.Debug("Package registry inconsistent: blob %s does not exist on file system", pb.HashSHA256)
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exists = false
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}
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}
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if !exists {
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if err := contentStore.Save(packages_module.BlobHash256Key(pb.HashSHA256), buf, buf.Size()); err != nil {
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log.Error("Error saving package blob in content store: %v", err)
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return nil, false, "", err
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}
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}
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manifestDigest = digestFromHashSummer(buf)
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pf, err := createFileFromBlobReference(ctx, pv, nil, &blobReference{
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Digest: digest.Digest(manifestDigest),
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MediaType: mci.MediaType,
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Name: container_module.ManifestFilename,
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File: &packages_model.PackageFileDescriptor{Blob: pb},
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ExpectedSize: pb.Size,
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IsLead: true,
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})
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if err != nil {
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return nil, false, "", err
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}
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oldManifestFiles, _, err := packages_model.SearchFiles(ctx, &packages_model.PackageFileSearchOptions{
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OwnerID: mci.Owner.ID,
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PackageType: packages_model.TypeContainer,
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VersionID: pv.ID,
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Query: container_module.ManifestFilename,
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})
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if err != nil {
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return nil, false, "", err
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}
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for _, oldManifestFile := range oldManifestFiles {
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if oldManifestFile.ID != pf.ID && oldManifestFile.IsLead {
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err = packages_model.UpdateFile(ctx, &packages_model.PackageFile{ID: oldManifestFile.ID, IsLead: false}, []string{"is_lead"})
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if err != nil {
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return nil, false, "", err
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}
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}
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}
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return pb, !exists, manifestDigest, err
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}
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