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release_manager.go
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release_manager.go
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package cmd
import (
bosherr "github.com/cloudfoundry/bosh-utils/errors"
"github.com/cppforlife/go-patch/patch"
semver "github.com/cppforlife/go-semi-semantic/version"
boshdir "github.com/cloudfoundry/bosh-cli/director"
boshtpl "github.com/cloudfoundry/bosh-cli/director/template"
boshrel "github.com/cloudfoundry/bosh-cli/release"
)
type ReleaseManager struct {
createReleaseCmd ReleaseCreatingCmd
uploadReleaseCmd ReleaseUploadingCmd
parallelThreads int
}
type ReleaseUploadingCmd interface {
Run(UploadReleaseOpts) error
}
type ReleaseCreatingCmd interface {
Run(CreateReleaseOpts) (boshrel.Release, error)
}
func NewReleaseManager(
createReleaseCmd ReleaseCreatingCmd,
uploadReleaseCmd ReleaseUploadingCmd,
parallelThreads int,
) ReleaseManager {
return ReleaseManager{createReleaseCmd, uploadReleaseCmd, parallelThreads}
}
func (m ReleaseManager) UploadReleases(bytes []byte) ([]byte, error) {
manifest, err := boshdir.NewManifestFromBytes(bytes)
if err != nil {
return nil, bosherr.WrapErrorf(err, "Parsing manifest")
}
opss, err := m.parallelCreateAndUpload(manifest)
if err != nil {
return nil, bosherr.WrapErrorf(err, "Creating and uploading releases")
}
tpl := boshtpl.NewTemplate(bytes)
bytes, err = tpl.Evaluate(boshtpl.StaticVariables{}, opss, boshtpl.EvaluateOpts{})
if err != nil {
return nil, bosherr.WrapErrorf(err, "Updating manifest with created release versions")
}
return bytes, nil
}
func (m ReleaseManager) parallelCreateAndUpload(manifest boshdir.Manifest) (patch.Ops, error) {
pool := WorkerPool{
WorkerCount: m.parallelThreads,
}
tasks := []func() (interface{}, error){}
for _, r := range manifest.Releases {
release := r
tasks = append(tasks, func() (interface{}, error) {
return m.createAndUploadRelease(release)
})
}
results, err := pool.ParallelDo(tasks...)
if err != nil {
return nil, err
}
var opss patch.Ops
for _, result := range results {
opss = append(opss, result.(patch.Ops))
}
return opss, nil
}
func (m ReleaseManager) createAndUploadRelease(rel boshdir.ManifestRelease) (patch.Ops, error) {
var ops patch.Ops
if len(rel.URL) == 0 {
return nil, nil
}
ver, err := semver.NewVersionFromString(rel.Version)
if err != nil {
return nil, err
}
uploadOpts := UploadReleaseOpts{
Name: rel.Name,
Version: VersionArg(ver),
Args: UploadReleaseArgs{URL: URLArg(rel.URL)},
SHA1: rel.SHA1,
}
if len(rel.Stemcell.OS) > 0 {
uploadOpts.Stemcell = boshdir.NewOSVersionSlug(rel.Stemcell.OS, rel.Stemcell.Version)
}
if rel.Version == "create" {
createOpts := CreateReleaseOpts{
Name: rel.Name,
Directory: DirOrCWDArg{Path: uploadOpts.Args.URL.FilePath()},
TimestampVersion: true,
Force: true,
}
release, err := m.createReleaseCmd.Run(createOpts)
if err != nil {
return nil, bosherr.WrapErrorf(err, "Processing release '%s/%s'", rel.Name, rel.Version)
}
uploadOpts = UploadReleaseOpts{Release: release}
replaceOp := patch.ReplaceOp{
// equivalent to /releases/name=?/version
Path: patch.NewPointer([]patch.Token{
patch.RootToken{},
patch.KeyToken{Key: "releases"},
patch.MatchingIndexToken{Key: "name", Value: rel.Name},
patch.KeyToken{Key: "version"},
}),
Value: release.Version(),
}
removeUrlOp := patch.RemoveOp{
Path: patch.NewPointer([]patch.Token{
patch.RootToken{},
patch.KeyToken{Key: "releases"},
patch.MatchingIndexToken{Key: "name", Value: rel.Name},
patch.KeyToken{Key: "url"},
}),
}
ops = append(ops, replaceOp, removeUrlOp)
}
err = m.uploadReleaseCmd.Run(uploadOpts)
if err != nil {
return nil, bosherr.WrapErrorf(err, "Uploading release '%s/%s'", rel.Name, rel.Version)
}
return ops, nil
}