//downloadManifest downloads manifest file from s3 bucket
func (m *updateManager) downloadManifest(log log.T,
util updateutil.T,
pluginInput *UpdatePluginInput,
context *updateutil.InstanceContext,
out *UpdatePluginOutput) (manifest *Manifest, err error) {
//Download source
var updateDownload = ""
updateDownload, err = util.CreateUpdateDownloadFolder()
if err != nil {
return nil, err
}
downloadInput := artifact.DownloadInput{
SourceURL: pluginInput.Source,
DestinationDirectory: updateDownload,
}
downloadOutput, downloadErr := fileDownload(log, downloadInput)
if downloadErr != nil ||
downloadOutput.IsHashMatched == false ||
downloadOutput.LocalFilePath == "" {
return nil, downloadErr
}
out.AppendInfo(log, "Successfully downloaded %v", downloadInput.SourceURL)
return ParseManifest(log, downloadOutput.LocalFilePath, context, pluginInput.AgentName)
}
//downloadUpdater downloads updater from the s3 bucket
func (m *updateManager) downloadUpdater(log log.T,
util updateutil.T,
updaterPackageName string,
manifest *Manifest,
out *UpdatePluginOutput,
context *updateutil.InstanceContext) (version string, err error) {
var hash = ""
var source = ""
if version, err = manifest.LatestVersion(log, context, updaterPackageName); err != nil {
return
}
if source, hash, err = manifest.DownloadURLAndHash(context, updaterPackageName, version); err != nil {
return
}
var updateDownloadFolder = ""
if updateDownloadFolder, err = util.CreateUpdateDownloadFolder(); err != nil {
return
}
downloadInput := artifact.DownloadInput{
SourceURL: source,
SourceHashValue: hash,
SourceHashType: updateutil.HashType,
DestinationDirectory: updateDownloadFolder,
}
downloadOutput, downloadErr := fileDownload(log, downloadInput)
if downloadErr != nil ||
downloadOutput.IsHashMatched == false ||
downloadOutput.LocalFilePath == "" {
errMessage := fmt.Sprintf("failed to download file reliably, %v", downloadInput.SourceURL)
if downloadErr != nil {
errMessage = fmt.Sprintf("%v, %v", errMessage, downloadErr.Error())
}
return version, errors.New(errMessage)
}
out.AppendInfo(log, "Successfully downloaded %v", downloadInput.SourceURL)
if uncompressErr := fileUncompress(
downloadOutput.LocalFilePath,
updateutil.UpdateArtifactFolder(appconfig.UpdaterArtifactsRoot, updaterPackageName, version)); uncompressErr != nil {
return version, fmt.Errorf("failed to uncompress updater package, %v, %v",
downloadOutput.LocalFilePath,
uncompressErr.Error())
}
return version, nil
}