128 lines
4.4 KiB
Go
128 lines
4.4 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package stack
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import (
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"encoding/json"
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"fmt"
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"github.com/pulumi/pulumi/pkg/v3/resource/deploy"
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"github.com/pulumi/pulumi/pkg/v3/secrets"
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"github.com/pulumi/pulumi/sdk/v3/go/common/apitype"
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"github.com/pulumi/pulumi/sdk/v3/go/common/apitype/migrate"
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"github.com/pulumi/pulumi/sdk/v3/go/common/resource"
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"github.com/pulumi/pulumi/sdk/v3/go/common/tokens"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
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)
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func UnmarshalVersionedCheckpointToLatestCheckpoint(bytes []byte) (*apitype.CheckpointV3, error) {
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var versionedCheckpoint apitype.VersionedCheckpoint
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if err := json.Unmarshal(bytes, &versionedCheckpoint); err != nil {
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return nil, err
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}
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switch versionedCheckpoint.Version {
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case 0:
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// The happens when we are loading a checkpoint file from before we started to version things. Go's
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// json package did not support strict marshalling before 1.10, and we use 1.9 in our toolchain today.
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// After we upgrade, we could consider rewriting this code to use DisallowUnknownFields() on the decoder
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// to have the old checkpoint not even deserialize as an apitype.VersionedCheckpoint.
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var v1checkpoint apitype.CheckpointV1
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if err := json.Unmarshal(bytes, &v1checkpoint); err != nil {
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return nil, err
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}
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v2checkpoint := migrate.UpToCheckpointV2(v1checkpoint)
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v3checkpoint := migrate.UpToCheckpointV3(v2checkpoint)
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return &v3checkpoint, nil
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case 1:
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var v1checkpoint apitype.CheckpointV1
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if err := json.Unmarshal(versionedCheckpoint.Checkpoint, &v1checkpoint); err != nil {
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return nil, err
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}
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v2checkpoint := migrate.UpToCheckpointV2(v1checkpoint)
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v3checkpoint := migrate.UpToCheckpointV3(v2checkpoint)
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return &v3checkpoint, nil
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case 2:
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var v2checkpoint apitype.CheckpointV2
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if err := json.Unmarshal(versionedCheckpoint.Checkpoint, &v2checkpoint); err != nil {
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return nil, err
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}
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v3checkpoint := migrate.UpToCheckpointV3(v2checkpoint)
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return &v3checkpoint, nil
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case 3:
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var v3checkpoint apitype.CheckpointV3
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if err := json.Unmarshal(versionedCheckpoint.Checkpoint, &v3checkpoint); err != nil {
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return nil, err
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}
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return &v3checkpoint, nil
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default:
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return nil, fmt.Errorf("unsupported checkpoint version %d", versionedCheckpoint.Version)
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}
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}
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// SerializeCheckpoint turns a snapshot into a data structure suitable for serialization.
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func SerializeCheckpoint(stack tokens.QName, snap *deploy.Snapshot,
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sm secrets.Manager, showSecrets bool) (*apitype.VersionedCheckpoint, error) {
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// If snap is nil, that's okay, we will just create an empty deployment; otherwise, serialize the whole snapshot.
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var latest *apitype.DeploymentV3
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if snap != nil {
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dep, err := SerializeDeployment(snap, sm, showSecrets)
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if err != nil {
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return nil, fmt.Errorf("serializing deployment: %w", err)
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}
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latest = dep
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}
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b, err := json.Marshal(apitype.CheckpointV3{
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Stack: stack,
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Latest: latest,
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})
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if err != nil {
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return nil, fmt.Errorf("marshalling checkpoint: %w", err)
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}
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return &apitype.VersionedCheckpoint{
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Version: apitype.DeploymentSchemaVersionCurrent,
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Checkpoint: json.RawMessage(b),
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}, nil
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}
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// DeserializeCheckpoint takes a serialized deployment record and returns its associated snapshot. Returns nil
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// if there have been no deployments performed on this checkpoint.
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func DeserializeCheckpoint(chkpoint *apitype.CheckpointV3) (*deploy.Snapshot, error) {
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contract.Require(chkpoint != nil, "chkpoint")
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if chkpoint.Latest != nil {
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return DeserializeDeploymentV3(*chkpoint.Latest, DefaultSecretsProvider)
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}
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return nil, nil
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}
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// GetRootStackResource returns the root stack resource from a given snapshot, or nil if not found.
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func GetRootStackResource(snap *deploy.Snapshot) (*resource.State, error) {
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if snap != nil {
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for _, res := range snap.Resources {
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if res.Type == resource.RootStackType {
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return res, nil
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}
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}
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}
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return nil, nil
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}
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