4c217fd358
This PR adds a new `pulumi history` command, which prints the update history for a stack. The local backend stores the update history in a JSON file on disk, next to the checkpoint file. The cloud backend simply provides the update metadata, and expects to receive all the data from a (NYI) `/history` REST endpoint. `pkg/backend/updates.go` defines the data that is being persisted. The way the data is wired through the system is adding a new `backend.UpdateMetadata` parameter to a Stack/Backend's `Update` and `Destroy` methods. I use `tests/integration/stack_outputs/` as the simple app for the related tests, hence the addition to the `.gitignore` and fixing the name in the `Pulumi.yaml`. Fixes #636.
119 lines
3.2 KiB
Go
119 lines
3.2 KiB
Go
// Copyright 2017, Pulumi Corporation. All rights reserved.
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package engine
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import (
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"bytes"
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"github.com/pkg/errors"
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"github.com/pulumi/pulumi/pkg/diag"
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"github.com/pulumi/pulumi/pkg/resource"
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"github.com/pulumi/pulumi/pkg/resource/deploy"
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"github.com/pulumi/pulumi/pkg/util/contract"
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)
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func Preview(update Update, events chan<- Event, opts UpdateOptions) error {
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contract.Require(update != nil, "update")
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contract.Require(events != nil, "events")
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defer func() { events <- cancelEvent() }()
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info, err := planContextFromUpdate(update)
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if err != nil {
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return err
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}
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defer info.Close()
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return previewLatest(info, deployOptions{
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UpdateOptions: opts,
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Create: false,
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Destroy: false,
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Events: events,
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Diag: newEventSink(events, diag.FormatOptions{
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Color: opts.Color,
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}),
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})
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}
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func previewLatest(info *planContext, opts deployOptions) error {
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result, err := plan(info, opts)
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if err != nil {
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return err
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}
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if result != nil {
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defer contract.IgnoreClose(result)
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// Make the current working directory the same as the program's, and restore it upon exit.
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done, err := result.Chdir()
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if err != nil {
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return err
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}
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defer done()
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if _, err := printPlan(result); err != nil {
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return err
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}
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}
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if !opts.Diag.Success() {
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// If any error occurred while walking the plan, be sure to let the developer know. Otherwise,
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// although error messages may have spewed to the output, the final lines of the plan may look fine.
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return errors.New("One or more errors occurred during the creation of this preview")
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}
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return nil
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}
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type previewActions struct {
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Ops map[deploy.StepOp]int
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Opts deployOptions
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Seen map[resource.URN]deploy.Step
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Shown map[resource.URN]bool
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}
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func newPreviewActions(opts deployOptions) *previewActions {
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return &previewActions{
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Ops: make(map[deploy.StepOp]int),
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Opts: opts,
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Seen: make(map[resource.URN]deploy.Step),
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Shown: make(map[resource.URN]bool),
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}
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}
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func (acts *previewActions) OnResourceStepPre(step deploy.Step) (interface{}, error) {
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// Print this step information (resource and all its properties).
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if shouldShow(acts.Seen, step, acts.Opts) || isRootStack(step) {
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var b bytes.Buffer
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printStep(&b, step,
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acts.Seen, acts.Shown, acts.Opts.Summary, acts.Opts.Detailed, true, 0 /*indent*/)
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acts.Opts.Events <- stdOutEventWithColor(&b, acts.Opts.Color)
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}
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return nil, nil
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}
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func (acts *previewActions) OnResourceStepPost(ctx interface{},
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step deploy.Step, status resource.Status, err error) error {
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// We let `printPlan` handle error reporting for now.
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if err == nil {
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// Track the operation if shown and/or if it is a logically meaningful operation.
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if step.Logical() {
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acts.Ops[step.Op()]++
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}
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// Also show outputs here, since there might be some from the initial registration.
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if shouldShow(acts.Seen, step, acts.Opts) && !acts.Opts.Summary {
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_ = acts.OnResourceOutputs(step)
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}
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}
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return nil
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}
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func (acts *previewActions) OnResourceOutputs(step deploy.Step) error {
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// Print this step's output properties.
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if (shouldShow(acts.Seen, step, acts.Opts) || isRootStack(step)) && !acts.Opts.Summary {
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var b bytes.Buffer
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printResourceOutputProperties(&b, step, acts.Seen, acts.Shown, true, 0 /*indent*/)
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acts.Opts.Events <- stdOutEventWithColor(&b, acts.Opts.Color)
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}
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return nil
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}
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