78 lines
2.8 KiB
Go
78 lines
2.8 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
|
|
|
|
// Package stack contains the serialized and configurable state associated with an stack; or, in other
|
|
// words, a deployment target. It pertains to resources and deployment plans, but is a package unto itself.
|
|
package stack
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io/ioutil"
|
|
|
|
"github.com/pulumi/pulumi/pkg/resource"
|
|
"github.com/pulumi/pulumi/pkg/resource/config"
|
|
"github.com/pulumi/pulumi/pkg/resource/deploy"
|
|
"github.com/pulumi/pulumi/pkg/tokens"
|
|
"github.com/pulumi/pulumi/pkg/util/contract"
|
|
"github.com/pulumi/pulumi/pkg/workspace"
|
|
)
|
|
|
|
// Checkpoint is a serialized deployment target plus a record of the latest deployment.
|
|
type Checkpoint struct {
|
|
Target tokens.QName `json:"target" yaml:"target"` // the target stack name.
|
|
Config map[tokens.ModuleMember]config.Value `json:"config,omitempty" yaml:"config,omitempty"` // optional configuration key/values.
|
|
Latest *Deployment `json:"latest,omitempty" yaml:"latest,omitempty"` // the latest/current deployment information.
|
|
}
|
|
|
|
// GetCheckpoint loads a checkpoint file for the given stack in this project, from the current project workspace.
|
|
func GetCheckpoint(w workspace.W, stack tokens.QName) (*Checkpoint, error) {
|
|
chkpath := w.StackPath(stack)
|
|
bytes, err := ioutil.ReadFile(chkpath)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
var checkpoint Checkpoint
|
|
if err = json.Unmarshal(bytes, &checkpoint); err != nil {
|
|
return nil, err
|
|
}
|
|
return &checkpoint, nil
|
|
}
|
|
|
|
// SerializeCheckpoint turns a snapshot into a data structure suitable for serialization.
|
|
func SerializeCheckpoint(target tokens.QName,
|
|
config map[tokens.ModuleMember]config.Value, snap *deploy.Snapshot) *Checkpoint {
|
|
// If snap is nil, that's okay, we will just create an empty deployment; otherwise, serialize the whole snapshot.
|
|
var latest *Deployment
|
|
if snap != nil {
|
|
latest = SerializeDeployment(snap)
|
|
}
|
|
|
|
return &Checkpoint{
|
|
Target: target,
|
|
Config: config,
|
|
Latest: latest,
|
|
}
|
|
}
|
|
|
|
// DeserializeCheckpoint takes a serialized deployment record and returns its associated snapshot.
|
|
func DeserializeCheckpoint(chkpoint *Checkpoint) (tokens.QName,
|
|
map[tokens.ModuleMember]config.Value, *deploy.Snapshot, error) {
|
|
contract.Require(chkpoint != nil, "chkpoint")
|
|
|
|
var snap *deploy.Snapshot
|
|
name := chkpoint.Target
|
|
if latest := chkpoint.Latest; latest != nil {
|
|
// For every serialized resource vertex, create a ResourceDeployment out of it.
|
|
var resources []*resource.State
|
|
for _, res := range latest.Resources {
|
|
desres, err := DeserializeResource(res)
|
|
if err != nil {
|
|
return "", nil, nil, err
|
|
}
|
|
resources = append(resources, desres)
|
|
}
|
|
|
|
snap = deploy.NewSnapshot(name, chkpoint.Latest.Time, resources)
|
|
}
|
|
|
|
return name, chkpoint.Config, snap, nil
|
|
}
|