// RemoveDirs removes directory structure under public path
func (storage *PublishedStorage) RemoveDirs(path string, progress aptly.Progress) error {
filepath := filepath.Join(storage.rootPath, path)
if progress != nil {
progress.Printf("Removing %s...\n", filepath)
}
return os.RemoveAll(filepath)
}
// CleanupPrefixComponentFiles removes all unreferenced files in published storage under prefix/component pair
func (collection *PublishedRepoCollection) CleanupPrefixComponentFiles(prefix, component string,
publishedStorage aptly.PublishedStorage, collectionFactory *CollectionFactory, progress aptly.Progress) error {
var err error
referencedFiles := []string{}
if progress != nil {
progress.Printf("Cleaning up prefix %#v component %#v...\n", prefix, component)
}
for _, r := range collection.list {
if r.Prefix == prefix && r.Component == component {
err = collection.LoadComplete(r, collectionFactory)
if err != nil {
return err
}
packageList, err := NewPackageListFromRefList(r.RefList(), collectionFactory.PackageCollection(), progress)
if err != nil {
return err
}
packageList.ForEach(func(p *Package) error {
poolDir, err := p.PoolDirectory()
if err != nil {
return err
}
for _, f := range p.Files() {
referencedFiles = append(referencedFiles, filepath.Join(poolDir, f.Filename))
}
return nil
})
}
}
sort.Strings(referencedFiles)
rootPath := filepath.Join(prefix, "pool", component)
existingFiles, err := publishedStorage.Filelist(rootPath)
if err != nil {
return err
}
sort.Strings(existingFiles)
filesToDelete := utils.StrSlicesSubstract(existingFiles, referencedFiles)
for _, file := range filesToDelete {
err = publishedStorage.Remove(filepath.Join(rootPath, file))
if err != nil {
return err
}
}
return nil
}
// CleanupPrefixComponentFiles removes all unreferenced files in published storage under prefix/component pair
func (collection *PublishedRepoCollection) CleanupPrefixComponentFiles(prefix string, components []string,
publishedStorage aptly.PublishedStorage, collectionFactory *CollectionFactory, progress aptly.Progress) error {
var err error
referencedFiles := map[string][]string{}
if progress != nil {
progress.Printf("Cleaning up prefix %#v components %s...\n", prefix, strings.Join(components, ", "))
}
for _, r := range collection.list {
if r.Prefix == prefix {
matches := false
repoComponents := r.Components()
for _, component := range components {
if utils.StrSliceHasItem(repoComponents, component) {
matches = true
break
}
}
if !matches {
continue
}
err = collection.LoadComplete(r, collectionFactory)
if err != nil {
return err
}
for _, component := range components {
if utils.StrSliceHasItem(repoComponents, component) {
packageList, err := NewPackageListFromRefList(r.RefList(component), collectionFactory.PackageCollection(), progress)
if err != nil {
return err
}
packageList.ForEach(func(p *Package) error {
poolDir, err := p.PoolDirectory()
if err != nil {
return err
}
for _, f := range p.Files() {
referencedFiles[component] = append(referencedFiles[component], filepath.Join(poolDir, f.Filename))
}
return nil
})
}
}
}
}
for _, component := range components {
sort.Strings(referencedFiles[component])
rootPath := filepath.Join(prefix, "pool", component)
existingFiles, err := publishedStorage.Filelist(rootPath)
if err != nil {
return err
}
sort.Strings(existingFiles)
filesToDelete := utils.StrSlicesSubstract(existingFiles, referencedFiles[component])
for _, file := range filesToDelete {
err = publishedStorage.Remove(filepath.Join(rootPath, file))
if err != nil {
return err
}
}
}
return nil
}
// Publish publishes snapshot (repository) contents, links package files, generates Packages & Release files, signs them
func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorageProvider aptly.PublishedStorageProvider,
collectionFactory *CollectionFactory, signer utils.Signer, progress aptly.Progress, forceOverwrite bool) error {
publishedStorage := publishedStorageProvider.GetPublishedStorage(p.Storage)
err := publishedStorage.MkDir(filepath.Join(p.Prefix, "pool"))
if err != nil {
return err
}
basePath := filepath.Join(p.Prefix, "dists", p.Distribution)
err = publishedStorage.MkDir(basePath)
if err != nil {
return err
}
if progress != nil {
progress.Printf("Loading packages...\n")
}
lists := map[string]*PackageList{}
for component := range p.sourceItems {
// Load all packages
lists[component], err = NewPackageListFromRefList(p.RefList(component), collectionFactory.PackageCollection(), progress)
if err != nil {
return fmt.Errorf("unable to load packages: %s", err)
}
}
if !p.rePublishing {
if len(p.Architectures) == 0 {
for _, list := range lists {
p.Architectures = append(p.Architectures, list.Architectures(true)...)
}
}
if len(p.Architectures) == 0 {
return fmt.Errorf("unable to figure out list of architectures, please supply explicit list")
}
sort.Strings(p.Architectures)
p.Architectures = utils.StrSliceDeduplicate(p.Architectures)
}
var suffix string
if p.rePublishing {
suffix = ".tmp"
}
if progress != nil {
progress.Printf("Generating metadata files and linking package files...\n")
}
var tempDir string
tempDir, err = ioutil.TempDir(os.TempDir(), "aptly")
if err != nil {
return err
}
defer os.RemoveAll(tempDir)
indexes := newIndexFiles(publishedStorage, basePath, tempDir, suffix)
for component, list := range lists {
hadUdebs := false
// For all architectures, pregenerate packages/sources files
for _, arch := range p.Architectures {
indexes.PackageIndex(component, arch, false)
}
if progress != nil {
progress.InitBar(int64(list.Len()), false)
}
list.PrepareIndex()
contentIndexes := map[string]*ContentsIndex{}
err = list.ForEachIndexed(func(pkg *Package) error {
if progress != nil {
progress.AddBar(1)
}
matches := false
for _, arch := range p.Architectures {
if pkg.MatchesArchitecture(arch) {
matches = true
break
}
}
if matches {
hadUdebs = hadUdebs || pkg.IsUdeb
err = pkg.LinkFromPool(publishedStorage, packagePool, p.Prefix, component, forceOverwrite)
if err != nil {
return err
}
}
for _, arch := range p.Architectures {
if pkg.MatchesArchitecture(arch) {
var bufWriter *bufio.Writer
if !p.SkipContents {
key := fmt.Sprintf("%s-%v", arch, pkg.IsUdeb)
contentIndex := contentIndexes[key]
if contentIndex == nil {
contentIndex = NewContentsIndex()
contentIndexes[key] = contentIndex
}
contentIndex.Push(pkg, packagePool)
}
bufWriter, err = indexes.PackageIndex(component, arch, pkg.IsUdeb).BufWriter()
if err != nil {
return err
}
err = pkg.Stanza().WriteTo(bufWriter, pkg.IsSource, false)
if err != nil {
return err
}
err = bufWriter.WriteByte('\n')
if err != nil {
return err
}
}
}
pkg.files = nil
pkg.deps = nil
pkg.extra = nil
pkg.contents = nil
return nil
})
if err != nil {
return fmt.Errorf("unable to process packages: %s", err)
}
for _, arch := range p.Architectures {
for _, udeb := range []bool{true, false} {
index := contentIndexes[fmt.Sprintf("%s-%v", arch, udeb)]
if index == nil || index.Empty() {
continue
}
bufWriter, err := indexes.ContentsIndex(component, arch, udeb).BufWriter()
if err != nil {
return fmt.Errorf("unable to generate contents index: %v", err)
}
_, err = index.WriteTo(bufWriter)
if err != nil {
return fmt.Errorf("unable to generate contents index: %v", err)
}
}
}
if progress != nil {
progress.ShutdownBar()
}
udebs := []bool{false}
if hadUdebs {
udebs = append(udebs, true)
// For all architectures, pregenerate .udeb indexes
for _, arch := range p.Architectures {
indexes.PackageIndex(component, arch, true)
}
}
// For all architectures, generate Release files
for _, arch := range p.Architectures {
for _, udeb := range udebs {
release := make(Stanza)
release["Archive"] = p.Distribution
release["Architecture"] = arch
release["Component"] = component
release["Origin"] = p.GetOrigin()
release["Label"] = p.GetLabel()
var bufWriter *bufio.Writer
bufWriter, err = indexes.ReleaseIndex(component, arch, udeb).BufWriter()
if err != nil {
return fmt.Errorf("unable to get ReleaseIndex writer: %s", err)
}
err = release.WriteTo(bufWriter, false, true)
if err != nil {
return fmt.Errorf("unable to create Release file: %s", err)
}
}
}
}
if progress != nil {
progress.Printf("Finalizing metadata files...\n")
}
err = indexes.FinalizeAll(progress)
if err != nil {
return err
}
release := make(Stanza)
release["Origin"] = p.GetOrigin()
release["Label"] = p.GetLabel()
release["Suite"] = p.Distribution
release["Codename"] = p.Distribution
release["Date"] = time.Now().UTC().Format("Mon, 2 Jan 2006 15:04:05 MST")
release["Architectures"] = strings.Join(utils.StrSlicesSubstract(p.Architectures, []string{"source"}), " ")
release["Description"] = " Generated by aptly\n"
release["MD5Sum"] = ""
release["SHA1"] = ""
release["SHA256"] = ""
release["SHA512"] = ""
release["Components"] = strings.Join(p.Components(), " ")
for path, info := range indexes.generatedFiles {
release["MD5Sum"] += fmt.Sprintf(" %s %8d %s\n", info.MD5, info.Size, path)
release["SHA1"] += fmt.Sprintf(" %s %8d %s\n", info.SHA1, info.Size, path)
release["SHA256"] += fmt.Sprintf(" %s %8d %s\n", info.SHA256, info.Size, path)
release["SHA512"] += fmt.Sprintf(" %s %8d %s\n", info.SHA512, info.Size, path)
}
releaseFile := indexes.ReleaseFile()
bufWriter, err := releaseFile.BufWriter()
if err != nil {
return err
}
err = release.WriteTo(bufWriter, false, true)
if err != nil {
return fmt.Errorf("unable to create Release file: %s", err)
}
// Signing files might output to console, so flush progress writer first
if progress != nil {
progress.Flush()
}
err = releaseFile.Finalize(signer)
if err != nil {
return err
}
err = indexes.RenameFiles()
if err != nil {
return err
}
return nil
}
// Download downloads all repo files
func (repo *RemoteRepo) Download(progress aptly.Progress, d aptly.Downloader, packageCollection *PackageCollection, packagePool aptly.PackagePool, ignoreMismatch bool) error {
list := NewPackageList()
progress.Printf("Downloading & parsing package files...\n")
// Download and parse all Packages & Source files
packagesURLs := [][]string{}
if repo.IsFlat() {
packagesURLs = append(packagesURLs, []string{repo.FlatBinaryURL().String(), "binary"})
if repo.DownloadSources {
packagesURLs = append(packagesURLs, []string{repo.FlatSourcesURL().String(), "source"})
}
} else {
for _, component := range repo.Components {
for _, architecture := range repo.Architectures {
packagesURLs = append(packagesURLs, []string{repo.BinaryURL(component, architecture).String(), "binary"})
}
if repo.DownloadSources {
packagesURLs = append(packagesURLs, []string{repo.SourcesURL(component).String(), "source"})
}
}
}
for _, info := range packagesURLs {
url, kind := info[0], info[1]
packagesReader, packagesFile, err := http.DownloadTryCompression(d, url, repo.ReleaseFiles, ignoreMismatch)
if err != nil {
return err
}
defer packagesFile.Close()
sreader := NewControlFileReader(packagesReader)
for {
stanza, err := sreader.ReadStanza()
if err != nil {
return err
}
if stanza == nil {
break
}
var p *Package
if kind == "binary" {
p = NewPackageFromControlFile(stanza)
} else if kind == "source" {
p, err = NewSourcePackageFromControlFile(stanza)
if err != nil {
return err
}
}
list.Add(p)
}
}
progress.Printf("Saving packages to database...\n")
progress.InitBar(int64(list.Len()), false)
packageCollection.db.StartBatch()
count := 0
// Save package meta information to DB
err := list.ForEach(func(p *Package) error {
progress.AddBar(1)
count++
if count > 1000 {
count = 0
err := packageCollection.db.FinishBatch()
if err != nil {
return err
}
packageCollection.db.StartBatch()
}
return packageCollection.Update(p)
})
if err != nil {
return fmt.Errorf("unable to save packages to db: %s", err)
}
err = packageCollection.db.FinishBatch()
if err != nil {
return fmt.Errorf("unable to save packages to db: %s", err)
}
progress.ShutdownBar()
progress.Printf("Building download queue...\n")
// Build download queue
queued := make(map[string]PackageDownloadTask, list.Len())
count = 0
downloadSize := int64(0)
err = list.ForEach(func(p *Package) error {
list, err := p.DownloadList(packagePool)
if err != nil {
return err
}
for _, task := range list {
key := task.RepoURI + "-" + task.DestinationPath
_, found := queued[key]
if !found {
count++
downloadSize += task.Checksums.Size
queued[key] = task
}
}
return nil
})
if err != nil {
return fmt.Errorf("unable to build download queue: %s", err)
}
repo.packageRefs = NewPackageRefListFromPackageList(list)
// free up package list, we don't need it after this point
list = nil
progress.Printf("Download queue: %d items, %.2f GiB size\n", count, float64(downloadSize)/(1024.0*1024.0*1024.0))
progress.InitBar(downloadSize, true)
// Download all package files
ch := make(chan error, len(queued))
for _, task := range queued {
d.DownloadWithChecksum(repo.PackageURL(task.RepoURI).String(), task.DestinationPath, ch, task.Checksums, ignoreMismatch)
}
// We don't need queued after this point
queued = nil
// Wait for all downloads to finish
errors := make([]string, 0)
for count > 0 {
err = <-ch
if err != nil {
errors = append(errors, err.Error())
}
count--
}
progress.ShutdownBar()
if len(errors) > 0 {
return fmt.Errorf("download errors:\n %s\n", strings.Join(errors, "\n "))
}
repo.LastDownloadDate = time.Now()
return nil
}
// Publish publishes snapshot (repository) contents, links package files, generates Packages & Release files, signs them
func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorage aptly.PublishedStorage,
collectionFactory *CollectionFactory, signer utils.Signer, progress aptly.Progress) error {
err := publishedStorage.MkDir(filepath.Join(p.Prefix, "pool"))
if err != nil {
return err
}
basePath := filepath.Join(p.Prefix, "dists", p.Distribution)
err = publishedStorage.MkDir(basePath)
if err != nil {
return err
}
if progress != nil {
progress.Printf("Loading packages...\n")
}
// Load all packages
list, err := NewPackageListFromRefList(p.RefList(), collectionFactory.PackageCollection(), progress)
if err != nil {
return fmt.Errorf("unable to load packages: %s", err)
}
if list.Len() == 0 {
return fmt.Errorf("source is empty")
}
if !p.rePublishing {
if len(p.Architectures) == 0 {
p.Architectures = list.Architectures(true)
}
if len(p.Architectures) == 0 {
return fmt.Errorf("unable to figure out list of architectures, please supply explicit list")
}
sort.Strings(p.Architectures)
}
var suffix string
if p.rePublishing {
suffix = ".tmp"
}
generatedFiles := map[string]utils.ChecksumInfo{}
renameMap := map[string]string{}
if progress != nil {
progress.Printf("Generating metadata files and linking package files...\n")
}
// For all architectures, generate release file
for _, arch := range p.Architectures {
if progress != nil {
progress.InitBar(int64(list.Len()), false)
}
var relativePath string
if arch == "source" {
relativePath = filepath.Join(p.Component, "source", "Sources")
} else {
relativePath = filepath.Join(p.Component, fmt.Sprintf("binary-%s", arch), "Packages")
}
err = publishedStorage.MkDir(filepath.Dir(filepath.Join(basePath, relativePath)))
if err != nil {
return err
}
var packagesFile *os.File
packagesFile, err = publishedStorage.CreateFile(filepath.Join(basePath, relativePath+suffix))
if err != nil {
return fmt.Errorf("unable to creates Packages file: %s", err)
}
if suffix != "" {
renameMap[filepath.Join(basePath, relativePath+suffix)] = filepath.Join(basePath, relativePath)
}
bufWriter := bufio.NewWriter(packagesFile)
err = list.ForEach(func(pkg *Package) error {
if progress != nil {
progress.AddBar(1)
}
if pkg.MatchesArchitecture(arch) {
err = pkg.LinkFromPool(publishedStorage, packagePool, p.Prefix, p.Component)
if err != nil {
return err
}
err = pkg.Stanza().WriteTo(bufWriter)
if err != nil {
return err
}
err = bufWriter.WriteByte('\n')
if err != nil {
return err
}
pkg.files = nil
pkg.deps = nil
pkg.extra = nil
}
return nil
})
if err != nil {
return fmt.Errorf("unable to process packages: %s", err)
}
err = bufWriter.Flush()
if err != nil {
return fmt.Errorf("unable to write Packages file: %s", err)
}
err = utils.CompressFile(packagesFile)
if err != nil {
return fmt.Errorf("unable to compress Packages files: %s", err)
}
if suffix != "" {
renameMap[filepath.Join(basePath, relativePath+suffix+".gz")] = filepath.Join(basePath, relativePath+".gz")
renameMap[filepath.Join(basePath, relativePath+suffix+".bz2")] = filepath.Join(basePath, relativePath+".bz2")
}
packagesFile.Close()
var checksumInfo utils.ChecksumInfo
checksumInfo, err = publishedStorage.ChecksumsForFile(filepath.Join(basePath, relativePath+suffix))
if err != nil {
return fmt.Errorf("unable to collect checksums: %s", err)
}
generatedFiles[relativePath] = checksumInfo
checksumInfo, err = publishedStorage.ChecksumsForFile(filepath.Join(basePath, relativePath+suffix+".gz"))
if err != nil {
return fmt.Errorf("unable to collect checksums: %s", err)
}
generatedFiles[relativePath+".gz"] = checksumInfo
checksumInfo, err = publishedStorage.ChecksumsForFile(filepath.Join(basePath, relativePath+suffix+".bz2"))
if err != nil {
return fmt.Errorf("unable to collect checksums: %s", err)
}
generatedFiles[relativePath+".bz2"] = checksumInfo
if progress != nil {
progress.ShutdownBar()
}
}
release := make(Stanza)
if p.Origin == "" {
release["Origin"] = p.Prefix + " " + p.Distribution
} else {
release["Origin"] = p.Origin
}
if p.Label == "" {
release["Label"] = p.Prefix + " " + p.Distribution
} else {
release["Label"] = p.Label
}
release["Codename"] = p.Distribution
release["Date"] = time.Now().UTC().Format("Mon, 2 Jan 2006 15:04:05 MST")
release["Components"] = p.Component
release["Architectures"] = strings.Join(utils.StrSlicesSubstract(p.Architectures, []string{"source"}), " ")
release["Description"] = " Generated by aptly\n"
release["MD5Sum"] = "\n"
release["SHA1"] = "\n"
release["SHA256"] = "\n"
for path, info := range generatedFiles {
release["MD5Sum"] += fmt.Sprintf(" %s %8d %s\n", info.MD5, info.Size, path)
release["SHA1"] += fmt.Sprintf(" %s %8d %s\n", info.SHA1, info.Size, path)
release["SHA256"] += fmt.Sprintf(" %s %8d %s\n", info.SHA256, info.Size, path)
}
releaseFile, err := publishedStorage.CreateFile(filepath.Join(basePath, "Release"+suffix))
if err != nil {
return fmt.Errorf("unable to create Release file: %s", err)
}
if suffix != "" {
renameMap[filepath.Join(basePath, "Release"+suffix)] = filepath.Join(basePath, "Release")
}
bufWriter := bufio.NewWriter(releaseFile)
err = release.WriteTo(bufWriter)
if err != nil {
return fmt.Errorf("unable to create Release file: %s", err)
}
err = bufWriter.Flush()
if err != nil {
return fmt.Errorf("unable to create Release file: %s", err)
}
releaseFilename := releaseFile.Name()
releaseFile.Close()
// Signing files might output to console, so flush progress writer first
if progress != nil {
progress.Flush()
}
if signer != nil {
err = signer.DetachedSign(releaseFilename, releaseFilename+".gpg")
if err != nil {
return fmt.Errorf("unable to sign Release file: %s", err)
}
err = signer.ClearSign(releaseFilename, filepath.Join(filepath.Dir(releaseFilename), "InRelease"+suffix))
if err != nil {
return fmt.Errorf("unable to sign Release file: %s", err)
}
if suffix != "" {
renameMap[filepath.Join(basePath, "Release"+suffix+".gpg")] = filepath.Join(basePath, "Release.gpg")
renameMap[filepath.Join(basePath, "InRelease"+suffix)] = filepath.Join(basePath, "InRelease")
}
}
for oldName, newName := range renameMap {
err = publishedStorage.RenameFile(oldName, newName)
if err != nil {
return fmt.Errorf("unable to rename: %s", err)
}
}
return nil
}
// Download downloads all repo files
func (repo *RemoteRepo) Download(progress aptly.Progress, d aptly.Downloader, collectionFactory *CollectionFactory,
packagePool aptly.PackagePool, ignoreMismatch bool, dependencyOptions int, filterQuery PackageQuery) error {
list := NewPackageList()
progress.Printf("Downloading & parsing package files...\n")
// Download and parse all Packages & Source files
packagesURLs := [][]string{}
if repo.IsFlat() {
packagesURLs = append(packagesURLs, []string{repo.FlatBinaryURL().String(), "binary"})
if repo.DownloadSources {
packagesURLs = append(packagesURLs, []string{repo.FlatSourcesURL().String(), "source"})
}
} else {
for _, component := range repo.Components {
for _, architecture := range repo.Architectures {
packagesURLs = append(packagesURLs, []string{repo.BinaryURL(component, architecture).String(), "binary"})
}
if repo.DownloadSources {
packagesURLs = append(packagesURLs, []string{repo.SourcesURL(component).String(), "source"})
}
}
}
for _, info := range packagesURLs {
url, kind := info[0], info[1]
packagesReader, packagesFile, err := http.DownloadTryCompression(d, url, repo.ReleaseFiles, ignoreMismatch)
if err != nil {
return err
}
defer packagesFile.Close()
stat, _ := packagesFile.Stat()
progress.InitBar(stat.Size(), true)
sreader := NewControlFileReader(packagesReader)
for {
stanza, err := sreader.ReadStanza()
if err != nil {
return err
}
if stanza == nil {
break
}
off, _ := packagesFile.Seek(0, 1)
progress.SetBar(int(off))
var p *Package
if kind == "binary" {
p = NewPackageFromControlFile(stanza)
} else if kind == "source" {
p, err = NewSourcePackageFromControlFile(stanza)
if err != nil {
return err
}
}
err = list.Add(p)
if err != nil {
return err
}
err = collectionFactory.PackageCollection().Update(p)
if err != nil {
return err
}
}
progress.ShutdownBar()
}
var err error
if repo.Filter != "" {
progress.Printf("Applying filter...\n")
list.PrepareIndex()
emptyList := NewPackageList()
emptyList.PrepareIndex()
origPackages := list.Len()
list, err = list.Filter([]PackageQuery{filterQuery}, repo.FilterWithDeps, emptyList, dependencyOptions, repo.Architectures)
if err != nil {
return err
}
progress.Printf("Packages filtered: %d -> %d.\n", origPackages, list.Len())
}
progress.Printf("Building download queue...\n")
// Build download queue
queued := make(map[string]PackageDownloadTask, list.Len())
count := 0
downloadSize := int64(0)
err = list.ForEach(func(p *Package) error {
list, err2 := p.DownloadList(packagePool)
if err2 != nil {
return err2
}
p.files = nil
for _, task := range list {
key := task.RepoURI + "-" + task.DestinationPath
_, found := queued[key]
if !found {
count++
downloadSize += task.Checksums.Size
queued[key] = task
}
}
return nil
})
if err != nil {
return fmt.Errorf("unable to build download queue: %s", err)
}
repo.packageRefs = NewPackageRefListFromPackageList(list)
// free up package list, we don't need it after this point
list = nil
progress.Printf("Download queue: %d items (%s)\n", count, utils.HumanBytes(downloadSize))
progress.InitBar(downloadSize, true)
// Download all package files
ch := make(chan error, len(queued))
for _, task := range queued {
d.DownloadWithChecksum(repo.PackageURL(task.RepoURI).String(), task.DestinationPath, ch, task.Checksums, ignoreMismatch)
}
// We don't need queued after this point
queued = nil
// Wait for all downloads to finish
errors := make([]string, 0)
for count > 0 {
err = <-ch
if err != nil {
errors = append(errors, err.Error())
}
count--
}
progress.ShutdownBar()
if len(errors) > 0 {
return fmt.Errorf("download errors:\n %s\n", strings.Join(errors, "\n "))
}
repo.LastDownloadDate = time.Now()
return nil
}