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zot/pkg/extensions/search/convert/repodb.go
LaurentiuNiculae ed01292ad2
feat(search): add referrers field to ImageSummary (#1261)
Changed repodb to store more information about the referrer needed for the referrers query

Signed-off-by: Laurentiu Niculae <niculae.laurentiu1@gmail.com>
2023-03-20 09:14:17 -07:00

725 lines
23 KiB
Go

package convert
import (
"context"
"encoding/json"
"fmt"
"strconv"
"strings"
"time"
"github.com/99designs/gqlgen/graphql"
godigest "github.com/opencontainers/go-digest"
ispec "github.com/opencontainers/image-spec/specs-go/v1"
"github.com/vektah/gqlparser/v2/gqlerror"
zerr "zotregistry.io/zot/errors"
"zotregistry.io/zot/pkg/extensions/search/common"
cveinfo "zotregistry.io/zot/pkg/extensions/search/cve"
cvemodel "zotregistry.io/zot/pkg/extensions/search/cve/model"
"zotregistry.io/zot/pkg/extensions/search/gql_generated"
"zotregistry.io/zot/pkg/log"
"zotregistry.io/zot/pkg/meta/repodb"
)
type SkipQGLField struct {
Vulnerabilities bool
}
func RepoMeta2RepoSummary(ctx context.Context, repoMeta repodb.RepoMetadata,
manifestMetaMap map[string]repodb.ManifestMetadata, indexDataMap map[string]repodb.IndexData,
skip SkipQGLField, cveInfo cveinfo.CveInfo,
) *gql_generated.RepoSummary {
var (
repoLastUpdatedTimestamp = time.Time{}
repoPlatformsSet = map[string]*gql_generated.Platform{}
repoVendorsSet = map[string]bool{}
lastUpdatedImageSummary *gql_generated.ImageSummary
repoStarCount = repoMeta.Stars
isBookmarked = false
isStarred = false
repoDownloadCount = 0
repoName = repoMeta.Name
// map used to keep track of all blobs of a repo without dublicates as
// some images may have the same layers
repoBlob2Size = make(map[string]int64, 10)
// made up of all manifests, configs and image layers
size = int64(0)
)
for tag, descriptor := range repoMeta.Tags {
imageSummary, imageBlobsMap, err := Descriptor2ImageSummary(ctx, descriptor, repoMeta.Name, tag, true, repoMeta,
manifestMetaMap, indexDataMap, cveInfo)
if err != nil {
continue
}
for blobDigest, blobSize := range imageBlobsMap {
repoBlob2Size[blobDigest] = blobSize
}
for _, manifestSummary := range imageSummary.Manifests {
if *manifestSummary.Platform.Os != "" || *manifestSummary.Platform.Arch != "" {
opSys, arch := *manifestSummary.Platform.Os, *manifestSummary.Platform.Arch
platformString := strings.TrimSpace(fmt.Sprintf("%s %s", opSys, arch))
repoPlatformsSet[platformString] = &gql_generated.Platform{Os: &opSys, Arch: &arch}
}
repoDownloadCount += manifestMetaMap[*manifestSummary.Digest].DownloadCount
}
if *imageSummary.Vendor != "" {
repoVendorsSet[*imageSummary.Vendor] = true
}
lastUpdatedImageSummary = UpdateLastUpdatedTimestam(&repoLastUpdatedTimestamp, lastUpdatedImageSummary, imageSummary)
repoDownloadCount += repoMeta.Statistics[descriptor.Digest].DownloadCount
}
// calculate repo size = sum all manifest, config and layer blobs sizes
for _, blobSize := range repoBlob2Size {
size += blobSize
}
repoSize := strconv.FormatInt(size, 10)
score := 0
repoPlatforms := make([]*gql_generated.Platform, 0, len(repoPlatformsSet))
for _, platform := range repoPlatformsSet {
repoPlatforms = append(repoPlatforms, platform)
}
repoVendors := make([]*string, 0, len(repoVendorsSet))
for vendor := range repoVendorsSet {
vendor := vendor
repoVendors = append(repoVendors, &vendor)
}
// We only scan the latest image on the repo for performance reasons
// Check if vulnerability scanning is disabled
if cveInfo != nil && lastUpdatedImageSummary != nil && !skip.Vulnerabilities {
imageCveSummary, err := cveInfo.GetCVESummaryForImage(repoMeta.Name, *lastUpdatedImageSummary.Tag)
if err != nil {
// Log the error, but we should still include the image in results
graphql.AddError(
ctx,
gqlerror.Errorf(
"unable to run vulnerability scan on tag %s in repo %s: error: %s",
*lastUpdatedImageSummary.Tag, repoMeta.Name, err.Error(),
),
)
}
lastUpdatedImageSummary.Vulnerabilities = &gql_generated.ImageVulnerabilitySummary{
MaxSeverity: &imageCveSummary.MaxSeverity,
Count: &imageCveSummary.Count,
}
}
return &gql_generated.RepoSummary{
Name: &repoName,
LastUpdated: &repoLastUpdatedTimestamp,
Size: &repoSize,
Platforms: repoPlatforms,
Vendors: repoVendors,
Score: &score,
NewestImage: lastUpdatedImageSummary,
DownloadCount: &repoDownloadCount,
StarCount: &repoStarCount,
IsBookmarked: &isBookmarked,
IsStarred: &isStarred,
}
}
func UpdateLastUpdatedTimestam(repoLastUpdatedTimestamp *time.Time, lastUpdatedImageSummary *gql_generated.ImageSummary,
imageSummary *gql_generated.ImageSummary,
) *gql_generated.ImageSummary {
newLastUpdatedImageSummary := lastUpdatedImageSummary
if repoLastUpdatedTimestamp.Equal(time.Time{}) {
// initialize with first time value
*repoLastUpdatedTimestamp = *imageSummary.LastUpdated
newLastUpdatedImageSummary = imageSummary
} else if repoLastUpdatedTimestamp.Before(*imageSummary.LastUpdated) {
*repoLastUpdatedTimestamp = *imageSummary.LastUpdated
newLastUpdatedImageSummary = imageSummary
}
return newLastUpdatedImageSummary
}
func Descriptor2ImageSummary(ctx context.Context, descriptor repodb.Descriptor, repo, tag string, skipCVE bool,
repoMeta repodb.RepoMetadata, manifestMetaMap map[string]repodb.ManifestMetadata,
indexDataMap map[string]repodb.IndexData, cveInfo cveinfo.CveInfo,
) (*gql_generated.ImageSummary, map[string]int64, error) {
switch descriptor.MediaType {
case ispec.MediaTypeImageManifest:
return ImageManifest2ImageSummary(ctx, repo, tag, godigest.Digest(descriptor.Digest), skipCVE,
repoMeta, manifestMetaMap[descriptor.Digest], cveInfo)
case ispec.MediaTypeImageIndex:
return ImageIndex2ImageSummary(ctx, repo, tag, godigest.Digest(descriptor.Digest), skipCVE,
repoMeta, indexDataMap[descriptor.Digest], manifestMetaMap, cveInfo)
default:
return &gql_generated.ImageSummary{}, map[string]int64{}, zerr.ErrMediaTypeNotSupported
}
}
func ImageIndex2ImageSummary(ctx context.Context, repo, tag string, indexDigest godigest.Digest, skipCVE bool,
repoMeta repodb.RepoMetadata, indexData repodb.IndexData, manifestMetaMap map[string]repodb.ManifestMetadata,
cveInfo cveinfo.CveInfo,
) (*gql_generated.ImageSummary, map[string]int64, error) {
var indexContent ispec.Index
err := json.Unmarshal(indexData.IndexBlob, &indexContent)
if err != nil {
return &gql_generated.ImageSummary{}, map[string]int64{}, err
}
var (
indexLastUpdated time.Time
isSigned bool
totalIndexSize int64
indexSize string
totalDownloadCount int
maxSeverity string
manifestSummaries = make([]*gql_generated.ManifestSummary, 0, len(indexContent.Manifests))
indexBlobs = make(map[string]int64, 0)
)
for _, descriptor := range indexContent.Manifests {
manifestSummary, manifestBlobs, err := ImageManifest2ManifestSummary(ctx, repo, tag, descriptor, false,
manifestMetaMap[descriptor.Digest.String()], repoMeta.Referrers[descriptor.Digest.String()], cveInfo)
if err != nil {
return &gql_generated.ImageSummary{}, map[string]int64{}, err
}
manifestSize := int64(0)
for digest, size := range manifestBlobs {
indexBlobs[digest] = size
manifestSize += size
}
if indexLastUpdated.Before(*manifestSummary.LastUpdated) {
indexLastUpdated = *manifestSummary.LastUpdated
}
totalIndexSize += manifestSize
if cvemodel.SeverityValue(*manifestSummary.Vulnerabilities.MaxSeverity) >
cvemodel.SeverityValue(maxSeverity) {
maxSeverity = *manifestSummary.Vulnerabilities.MaxSeverity
}
manifestSummaries = append(manifestSummaries, manifestSummary)
}
for _, signatures := range repoMeta.Signatures[indexDigest.String()] {
if len(signatures) > 0 {
isSigned = true
}
}
imageCveSummary := cveinfo.ImageCVESummary{}
if cveInfo != nil && !skipCVE {
imageCveSummary, err = cveInfo.GetCVESummaryForImage(repo, tag)
if err != nil {
// Log the error, but we should still include the manifest in results
graphql.AddError(ctx, gqlerror.Errorf("unable to run vulnerability scan on tag %s in repo %s: "+
"manifest digest: %s, error: %s", tag, repo, indexDigest, err.Error()))
}
}
indexSize = strconv.FormatInt(totalIndexSize, 10)
annotations := common.GetAnnotations(indexContent.Annotations, map[string]string{})
indexSummary := gql_generated.ImageSummary{
RepoName: &repo,
Tag: &tag,
Manifests: manifestSummaries,
LastUpdated: &indexLastUpdated,
IsSigned: &isSigned,
Size: &indexSize,
DownloadCount: &totalDownloadCount,
Description: &annotations.Description,
Title: &annotations.Title,
Documentation: &annotations.Documentation,
Licenses: &annotations.Licenses,
Labels: &annotations.Labels,
Source: &annotations.Source,
Vendor: &annotations.Vendor,
Vulnerabilities: &gql_generated.ImageVulnerabilitySummary{
MaxSeverity: &imageCveSummary.MaxSeverity,
Count: &imageCveSummary.Count,
},
Referrers: getReferrers(repoMeta.Referrers[indexDigest.String()]),
}
return &indexSummary, indexBlobs, nil
}
func ImageManifest2ImageSummary(ctx context.Context, repo, tag string, digest godigest.Digest, skipCVE bool,
repoMeta repodb.RepoMetadata, manifestMeta repodb.ManifestMetadata, cveInfo cveinfo.CveInfo,
) (*gql_generated.ImageSummary, map[string]int64, error) {
var (
manifestContent ispec.Manifest
manifestDigest = digest.String()
)
err := json.Unmarshal(manifestMeta.ManifestBlob, &manifestContent)
if err != nil {
graphql.AddError(ctx, gqlerror.Errorf("can't unmarshal manifest blob for image: %s:%s, manifest digest: %s, "+
"error: %s", repo, tag, manifestDigest, err.Error()))
return &gql_generated.ImageSummary{}, map[string]int64{}, err
}
var configContent ispec.Image
err = json.Unmarshal(manifestMeta.ConfigBlob, &configContent)
if err != nil {
graphql.AddError(ctx, gqlerror.Errorf("can't unmarshal config blob for image: %s:%s, manifest digest: %s, error: %s",
repo, tag, manifestDigest, err.Error()))
return &gql_generated.ImageSummary{}, map[string]int64{}, err
}
var (
repoName = repo
configDigest = manifestContent.Config.Digest.String()
configSize = manifestContent.Config.Size
imageLastUpdated = common.GetImageLastUpdated(configContent)
downloadCount = repoMeta.Statistics[digest.String()].DownloadCount
isSigned = false
)
opSys := configContent.OS
arch := configContent.Architecture
variant := configContent.Variant
if variant != "" {
arch = arch + "/" + variant
}
platform := gql_generated.Platform{Os: &opSys, Arch: &arch}
for _, signatures := range repoMeta.Signatures[digest.String()] {
if len(signatures) > 0 {
isSigned = true
}
}
size, imageBlobsMap := getImageBlobsInfo(
manifestDigest, int64(len(manifestMeta.ManifestBlob)),
configDigest, configSize,
manifestContent.Layers)
imageSize := strconv.FormatInt(size, 10)
annotations := common.GetAnnotations(manifestContent.Annotations, configContent.Config.Labels)
authors := annotations.Authors
if authors == "" {
authors = configContent.Author
}
historyEntries, err := getAllHistory(manifestContent, configContent)
if err != nil {
graphql.AddError(ctx, gqlerror.Errorf("error generating history on tag %s in repo %s: "+
"manifest digest: %s, error: %s", tag, repo, manifestDigest, err.Error()))
}
imageCveSummary := cveinfo.ImageCVESummary{}
if cveInfo != nil && !skipCVE {
imageCveSummary, err = cveInfo.GetCVESummaryForImage(repo, tag)
if err != nil {
// Log the error, but we should still include the manifest in results
graphql.AddError(ctx, gqlerror.Errorf("unable to run vulnerability scan on tag %s in repo %s: "+
"manifest digest: %s, error: %s", tag, repo, manifestDigest, err.Error()))
}
}
imageSummary := gql_generated.ImageSummary{
RepoName: &repoName,
Tag: &tag,
Manifests: []*gql_generated.ManifestSummary{
{
Digest: &manifestDigest,
ConfigDigest: &configDigest,
LastUpdated: &imageLastUpdated,
Size: &imageSize,
Platform: &platform,
DownloadCount: &downloadCount,
Layers: getLayersSummaries(manifestContent),
History: historyEntries,
Vulnerabilities: &gql_generated.ImageVulnerabilitySummary{
MaxSeverity: &imageCveSummary.MaxSeverity,
Count: &imageCveSummary.Count,
},
},
},
LastUpdated: &imageLastUpdated,
IsSigned: &isSigned,
Size: &imageSize,
DownloadCount: &downloadCount,
Description: &annotations.Description,
Title: &annotations.Title,
Documentation: &annotations.Documentation,
Licenses: &annotations.Licenses,
Labels: &annotations.Labels,
Source: &annotations.Source,
Vendor: &annotations.Vendor,
Authors: &authors,
Vulnerabilities: &gql_generated.ImageVulnerabilitySummary{
MaxSeverity: &imageCveSummary.MaxSeverity,
Count: &imageCveSummary.Count,
},
Referrers: getReferrers(repoMeta.Referrers[manifestDigest]),
}
return &imageSummary, imageBlobsMap, nil
}
func getReferrers(referrersInfo []repodb.ReferrerInfo) []*gql_generated.Referrer {
referrers := make([]*gql_generated.Referrer, 0, len(referrersInfo))
for _, referrerInfo := range referrersInfo {
referrerInfo := referrerInfo
referrers = append(referrers, &gql_generated.Referrer{
MediaType: &referrerInfo.MediaType,
ArtifactType: &referrerInfo.ArtifactType,
Size: &referrerInfo.Size,
Digest: &referrerInfo.Digest,
Annotations: getAnnotationsFromMap(referrerInfo.Annotations),
})
}
return referrers
}
func getAnnotationsFromMap(annotationsMap map[string]string) []*gql_generated.Annotation {
annotations := make([]*gql_generated.Annotation, 0, len(annotationsMap))
for key, value := range annotationsMap {
key := key
value := value
annotations = append(annotations, &gql_generated.Annotation{
Key: &key,
Value: &value,
})
}
return annotations
}
func ImageManifest2ManifestSummary(ctx context.Context, repo, tag string, descriptor ispec.Descriptor,
skipCVE bool, manifestMeta repodb.ManifestMetadata, referrersInfo []repodb.ReferrerInfo, cveInfo cveinfo.CveInfo,
) (*gql_generated.ManifestSummary, map[string]int64, error) {
var (
manifestContent ispec.Manifest
digest = descriptor.Digest
)
err := json.Unmarshal(manifestMeta.ManifestBlob, &manifestContent)
if err != nil {
graphql.AddError(ctx, gqlerror.Errorf("can't unmarshal manifest blob for image: %s:%s, manifest digest: %s, "+
"error: %s", repo, tag, digest, err.Error()))
return &gql_generated.ManifestSummary{}, map[string]int64{}, err
}
var configContent ispec.Image
err = json.Unmarshal(manifestMeta.ConfigBlob, &configContent)
if err != nil {
graphql.AddError(ctx, gqlerror.Errorf("can't unmarshal config blob for image: %s:%s, manifest digest: %s, error: %s",
repo, tag, digest, err.Error()))
return &gql_generated.ManifestSummary{}, map[string]int64{}, err
}
var (
manifestDigestStr = digest.String()
configDigest = manifestContent.Config.Digest.String()
configSize = manifestContent.Config.Size
imageLastUpdated = common.GetImageLastUpdated(configContent)
downloadCount = manifestMeta.DownloadCount
)
opSys := configContent.OS
arch := configContent.Architecture
variant := configContent.Variant
if variant != "" {
arch = arch + "/" + variant
}
platform := gql_generated.Platform{Os: &opSys, Arch: &arch}
size, imageBlobsMap := getImageBlobsInfo(
manifestDigestStr, int64(len(manifestMeta.ManifestBlob)),
configDigest, configSize,
manifestContent.Layers)
imageSize := strconv.FormatInt(size, 10)
historyEntries, err := getAllHistory(manifestContent, configContent)
if err != nil {
graphql.AddError(ctx, gqlerror.Errorf("error generating history on tag %s in repo %s: "+
"manifest digest: %s, error: %s", tag, repo, manifestDigestStr, err.Error()))
}
imageCveSummary := cveinfo.ImageCVESummary{}
if cveInfo != nil && !skipCVE {
imageCveSummary, err = cveInfo.GetCVESummaryForImage(repo, tag)
if err != nil {
// Log the error, but we should still include the manifest in results
graphql.AddError(ctx, gqlerror.Errorf("unable to run vulnerability scan on tag %s in repo %s: "+
"manifest digest: %s, error: %s", tag, repo, manifestDigestStr, err.Error()))
}
}
manifestSummary := gql_generated.ManifestSummary{
Digest: &manifestDigestStr,
ConfigDigest: &configDigest,
LastUpdated: &imageLastUpdated,
Size: &imageSize,
Platform: &platform,
DownloadCount: &downloadCount,
Layers: getLayersSummaries(manifestContent),
History: historyEntries,
Vulnerabilities: &gql_generated.ImageVulnerabilitySummary{
MaxSeverity: &imageCveSummary.MaxSeverity,
Count: &imageCveSummary.Count,
},
Referrers: getReferrers(referrersInfo),
}
return &manifestSummary, imageBlobsMap, nil
}
func getImageBlobsInfo(manifestDigest string, manifestSize int64, configDigest string, configSize int64,
layers []ispec.Descriptor,
) (int64, map[string]int64) {
imageBlobsMap := map[string]int64{}
imageSize := int64(0)
// add config size
imageSize += configSize
imageBlobsMap[configDigest] = configSize
// add manifest size
imageSize += manifestSize
imageBlobsMap[manifestDigest] = manifestSize
// add layers size
for _, layer := range layers {
imageBlobsMap[layer.Digest.String()] = layer.Size
imageSize += layer.Size
}
return imageSize, imageBlobsMap
}
func RepoMeta2ImageSummaries(ctx context.Context, repoMeta repodb.RepoMetadata,
manifestMetaMap map[string]repodb.ManifestMetadata, indexDataMap map[string]repodb.IndexData,
skip SkipQGLField, cveInfo cveinfo.CveInfo,
) []*gql_generated.ImageSummary {
imageSummaries := make([]*gql_generated.ImageSummary, 0, len(repoMeta.Tags))
for tag, descriptor := range repoMeta.Tags {
imageSummary, _, err := Descriptor2ImageSummary(ctx, descriptor, repoMeta.Name, tag, skip.Vulnerabilities,
repoMeta, manifestMetaMap, indexDataMap, cveInfo)
if err != nil {
continue
}
imageSummaries = append(imageSummaries, imageSummary)
}
return imageSummaries
}
func RepoMeta2ExpandedRepoInfo(ctx context.Context, repoMeta repodb.RepoMetadata,
manifestMetaMap map[string]repodb.ManifestMetadata, indexDataMap map[string]repodb.IndexData,
skip SkipQGLField, cveInfo cveinfo.CveInfo, log log.Logger,
) (*gql_generated.RepoSummary, []*gql_generated.ImageSummary) {
var (
repoLastUpdatedTimestamp = time.Time{}
repoPlatformsSet = map[string]*gql_generated.Platform{}
repoVendorsSet = map[string]bool{}
lastUpdatedImageSummary *gql_generated.ImageSummary
repoStarCount = repoMeta.Stars
isBookmarked = false
isStarred = false
repoDownloadCount = 0
repoName = repoMeta.Name
// map used to keep track of all blobs of a repo without dublicates as
// some images may have the same layers
repoBlob2Size = make(map[string]int64, 10)
// made up of all manifests, configs and image layers
size = int64(0)
imageSummaries = make([]*gql_generated.ImageSummary, 0, len(repoMeta.Tags))
)
for tag, descriptor := range repoMeta.Tags {
imageSummary, imageBlobs, err := Descriptor2ImageSummary(ctx, descriptor, repoName, tag,
skip.Vulnerabilities, repoMeta, manifestMetaMap, indexDataMap, cveInfo)
if err != nil {
log.Error().Msgf("repodb: erorr while converting descriptor for image '%s:%s'", repoName, tag)
continue
}
for _, manifestSummary := range imageSummary.Manifests {
opSys, arch := *manifestSummary.Platform.Os, *manifestSummary.Platform.Arch
if opSys != "" || arch != "" {
platformString := strings.TrimSpace(fmt.Sprintf("%s %s", opSys, arch))
repoPlatformsSet[platformString] = &gql_generated.Platform{Os: &opSys, Arch: &arch}
}
updateRepoBlobsMap(imageBlobs, repoBlob2Size)
}
if *imageSummary.Vendor != "" {
repoVendorsSet[*imageSummary.Vendor] = true
}
lastUpdatedImageSummary = UpdateLastUpdatedTimestam(&repoLastUpdatedTimestamp, lastUpdatedImageSummary, imageSummary)
repoDownloadCount += *imageSummary.DownloadCount
imageSummaries = append(imageSummaries, imageSummary)
}
// calculate repo size = sum all manifest, config and layer blobs sizes
for _, blobSize := range repoBlob2Size {
size += blobSize
}
repoSize := strconv.FormatInt(size, 10)
score := 0
repoPlatforms := make([]*gql_generated.Platform, 0, len(repoPlatformsSet))
for _, platform := range repoPlatformsSet {
repoPlatforms = append(repoPlatforms, platform)
}
repoVendors := make([]*string, 0, len(repoVendorsSet))
for vendor := range repoVendorsSet {
vendor := vendor
repoVendors = append(repoVendors, &vendor)
}
// We only scan the latest image on the repo for performance reasons
// Check if vulnerability scanning is disabled
if cveInfo != nil && lastUpdatedImageSummary != nil && !skip.Vulnerabilities {
imageCveSummary, err := cveInfo.GetCVESummaryForImage(repoMeta.Name, *lastUpdatedImageSummary.Tag)
if err != nil {
// Log the error, but we should still include the image in results
graphql.AddError(
ctx,
gqlerror.Errorf(
"unable to run vulnerability scan on tag %s in repo %s: error: %s",
*lastUpdatedImageSummary.Tag, repoMeta.Name, err.Error(),
),
)
}
lastUpdatedImageSummary.Vulnerabilities = &gql_generated.ImageVulnerabilitySummary{
MaxSeverity: &imageCveSummary.MaxSeverity,
Count: &imageCveSummary.Count,
}
}
summary := &gql_generated.RepoSummary{
Name: &repoName,
LastUpdated: &repoLastUpdatedTimestamp,
Size: &repoSize,
Platforms: repoPlatforms,
Vendors: repoVendors,
Score: &score,
NewestImage: lastUpdatedImageSummary,
DownloadCount: &repoDownloadCount,
StarCount: &repoStarCount,
IsBookmarked: &isBookmarked,
IsStarred: &isStarred,
}
return summary, imageSummaries
}
func StringMap2Annotations(strMap map[string]string) []*gql_generated.Annotation {
annotations := make([]*gql_generated.Annotation, 0, len(strMap))
for key, value := range strMap {
key := key
value := value
annotations = append(annotations, &gql_generated.Annotation{
Key: &key,
Value: &value,
})
}
return annotations
}
func GetPreloads(ctx context.Context) map[string]bool {
if !graphql.HasOperationContext(ctx) {
return map[string]bool{}
}
nestedPreloads := GetNestedPreloads(
graphql.GetOperationContext(ctx),
graphql.CollectFieldsCtx(ctx, nil),
"",
)
preloads := map[string]bool{}
for _, str := range nestedPreloads {
preloads[str] = true
}
return preloads
}
func GetNestedPreloads(ctx *graphql.OperationContext, fields []graphql.CollectedField, prefix string,
) []string {
preloads := []string{}
for _, column := range fields {
prefixColumn := GetPreloadString(prefix, column.Name)
preloads = append(preloads, prefixColumn)
preloads = append(preloads,
GetNestedPreloads(ctx, graphql.CollectFields(ctx, column.Selections, nil), prefixColumn)...,
)
}
return preloads
}
func GetPreloadString(prefix, name string) string {
if len(prefix) > 0 {
return prefix + "." + name
}
return name
}