mirror of https://github.com/pulumi/pulumi.git
365 lines
13 KiB
Go
365 lines
13 KiB
Go
// Copyright 2016-2021, 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 main
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import (
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"context"
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"errors"
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"fmt"
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"github.com/spf13/cobra"
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"github.com/pulumi/pulumi/pkg/v3/backend"
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"github.com/pulumi/pulumi/pkg/v3/backend/display"
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"github.com/pulumi/pulumi/pkg/v3/engine"
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"github.com/pulumi/pulumi/pkg/v3/resource/graph"
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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/util/cmdutil"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/logging"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/result"
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"github.com/pulumi/pulumi/sdk/v3/go/common/workspace"
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)
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func newDestroyCmd() *cobra.Command {
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var debug bool
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var stack string
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var message string
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var execKind string
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var execAgent string
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// Flags for engine.UpdateOptions.
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var jsonDisplay bool
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var diffDisplay bool
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var eventLogPath string
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var parallel int
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var refresh string
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var showConfig bool
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var showReplacementSteps bool
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var showSames bool
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var skipPreview bool
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var suppressOutputs bool
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var suppressPermalink string
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var yes bool
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var targets *[]string
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var targetDependents bool
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var excludeProtected bool
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var cmd = &cobra.Command{
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Use: "destroy",
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Aliases: []string{"down"},
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SuggestFor: []string{"delete", "kill", "remove", "rm", "stop"},
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Short: "Destroy all existing resources in the stack",
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Long: "Destroy all existing resources in the stack, but not the stack itself\n" +
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"\n" +
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"Deletes all the resources in the selected stack. The current state is\n" +
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"loaded from the associated state file in the workspace. After running to completion,\n" +
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"all of this stack's resources and associated state are deleted.\n" +
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"\n" +
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"The stack itself is not deleted. Use `pulumi stack rm` to delete the stack.\n" +
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"\n" +
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"Warning: this command is generally irreversible and should be used with great care.",
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Args: cmdutil.NoArgs,
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Run: cmdutil.RunResultFunc(func(cmd *cobra.Command, args []string) result.Result {
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ctx := commandContext()
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yes = yes || skipPreview || skipConfirmations()
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interactive := cmdutil.Interactive()
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if !interactive && !yes {
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return result.FromError(
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errors.New("--yes or --skip-preview must be passed in to proceed when running in non-interactive mode"))
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}
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opts, err := updateFlagsToOptions(interactive, skipPreview, yes)
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if err != nil {
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return result.FromError(err)
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}
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var displayType = display.DisplayProgress
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if diffDisplay {
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displayType = display.DisplayDiff
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}
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opts.Display = display.Options{
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Color: cmdutil.GetGlobalColorization(),
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ShowConfig: showConfig,
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ShowReplacementSteps: showReplacementSteps,
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ShowSameResources: showSames,
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SuppressOutputs: suppressOutputs,
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IsInteractive: interactive,
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Type: displayType,
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EventLogPath: eventLogPath,
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Debug: debug,
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JSONDisplay: jsonDisplay,
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}
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// we only suppress permalinks if the user passes true. the default is an empty string
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// which we pass as 'false'
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//nolint:goconst
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if suppressPermalink == "true" {
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opts.Display.SuppressPermalink = true
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} else {
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opts.Display.SuppressPermalink = false
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}
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filestateBackend, err := isFilestateBackend(opts.Display)
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if err != nil {
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return result.FromError(err)
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}
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// by default, we are going to suppress the permalink when using self-managed backends
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// this can be re-enabled by explicitly passing "false" to the `suppress-permalink` flag
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//nolint:goconst
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if suppressPermalink != "false" && filestateBackend {
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opts.Display.SuppressPermalink = true
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}
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s, err := requireStack(ctx, stack, false, opts.Display, false /*setCurrent*/)
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if err != nil {
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return result.FromError(err)
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}
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proj, root, err := readProject()
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if err != nil && errors.Is(err, workspace.ErrProjectNotFound) {
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logging.Warningf("failed to find current Pulumi project, continuing with an empty project"+
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"using stack %v from backend %v", s.Ref().Name(), s.Backend().Name())
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proj = &workspace.Project{}
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root = ""
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} else if err != nil {
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return result.FromError(err)
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}
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m, err := getUpdateMetadata(message, root, execKind, execAgent)
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if err != nil {
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return result.FromError(fmt.Errorf("gathering environment metadata: %w", err))
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}
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snap, err := s.Snapshot(ctx)
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if err != nil {
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return result.FromError(err)
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}
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sm, err := getStackSecretsManager(s)
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if err != nil {
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// fallback on snapshot SecretsManager
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sm = snap.SecretsManager
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}
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cfg, err := getStackConfiguration(ctx, s, sm)
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if err != nil {
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return result.FromError(fmt.Errorf("getting stack configuration: %w", err))
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}
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targetUrns := []resource.URN{}
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for _, t := range *targets {
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targetUrns = append(targetUrns, snap.GlobUrn(resource.URN(t))...)
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}
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if len(targetUrns) == 0 && len(*targets) > 0 {
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if !jsonDisplay {
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fmt.Printf("There were no resources matching the wildcards provided.\n")
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}
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return nil
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}
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refreshOption, err := getRefreshOption(proj, refresh)
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if err != nil {
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return result.FromError(err)
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}
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if targets != nil && len(*targets) > 0 && excludeProtected {
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return result.FromError(errors.New("You cannot specify --target and --exclude-protected"))
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}
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var protectedCount int
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if excludeProtected {
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contract.Assert(len(targetUrns) == 0)
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targetUrns, protectedCount, err = handleExcludeProtected(ctx, s)
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if err != nil {
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return result.FromError(err)
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} else if protectedCount > 0 && len(targetUrns) == 0 {
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if !jsonDisplay {
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fmt.Printf("There were no unprotected resources to destroy. There are still %d"+
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" protected resources associated with this stack.\n", protectedCount)
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}
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// We need to return now. Otherwise the update will conclude
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// we tried to destroy everything and error for trying to
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// destroy a protected resource.
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return nil
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}
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}
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opts.Engine = engine.UpdateOptions{
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Parallel: parallel,
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Debug: debug,
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Refresh: refreshOption,
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DestroyTargets: targetUrns,
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TargetDependents: targetDependents,
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UseLegacyDiff: useLegacyDiff(),
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DisableProviderPreview: disableProviderPreview(),
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DisableResourceReferences: disableResourceReferences(),
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DisableOutputValues: disableOutputValues(),
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}
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_, res := s.Destroy(ctx, backend.UpdateOperation{
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Proj: proj,
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Root: root,
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M: m,
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Opts: opts,
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StackConfiguration: cfg,
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SecretsManager: sm,
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Scopes: cancellationScopes,
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})
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if res == nil && protectedCount > 0 && !jsonDisplay {
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fmt.Printf("All unprotected resources were destroyed. There are still %d protected resources"+
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" associated with this stack.\n", protectedCount)
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} else if res == nil && len(*targets) == 0 && !jsonDisplay {
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fmt.Printf("The resources in the stack have been deleted, but the history and configuration "+
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"associated with the stack are still maintained. \nIf you want to remove the stack "+
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"completely, run `pulumi stack rm %s`.\n", s.Ref())
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} else if res != nil && res.Error() == context.Canceled {
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return result.FromError(errors.New("destroy cancelled"))
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}
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return PrintEngineResult(res)
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}),
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}
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cmd.PersistentFlags().BoolVarP(
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&debug, "debug", "d", false,
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"Print detailed debugging output during resource operations")
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cmd.PersistentFlags().StringVarP(
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&stack, "stack", "s", "",
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"The name of the stack to operate on. Defaults to the current stack")
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cmd.PersistentFlags().StringVar(
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&stackConfigFile, "config-file", "",
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"Use the configuration values in the specified file rather than detecting the file name")
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cmd.PersistentFlags().StringVarP(
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&message, "message", "m", "",
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"Optional message to associate with the destroy operation")
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targets = cmd.PersistentFlags().StringArrayP(
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"target", "t", []string{},
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"Specify a single resource URN to destroy. All resources necessary to destroy this target will also be destroyed."+
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" Multiple resources can be specified using: --target urn1 --target urn2."+
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" Wildcards (*, **) are also supported")
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cmd.PersistentFlags().BoolVar(
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&targetDependents, "target-dependents", false,
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"Allows destroying of dependent targets discovered but not specified in --target list")
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cmd.PersistentFlags().BoolVar(&excludeProtected, "exclude-protected", false, "Do not destroy protected resources."+
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" Destroy all other resources.")
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// Flags for engine.UpdateOptions.
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cmd.PersistentFlags().BoolVar(
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&diffDisplay, "diff", false,
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"Display operation as a rich diff showing the overall change")
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cmd.Flags().BoolVarP(
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&jsonDisplay, "json", "j", false,
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"Serialize the destroy diffs, operations, and overall output as JSON")
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cmd.PersistentFlags().IntVarP(
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¶llel, "parallel", "p", defaultParallel,
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"Allow P resource operations to run in parallel at once (1 for no parallelism). Defaults to unbounded.")
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cmd.PersistentFlags().StringVarP(
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&refresh, "refresh", "r", "",
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"Refresh the state of the stack's resources before this update")
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cmd.PersistentFlags().Lookup("refresh").NoOptDefVal = "true"
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cmd.PersistentFlags().BoolVar(
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&showConfig, "show-config", false,
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"Show configuration keys and variables")
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cmd.PersistentFlags().BoolVar(
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&showReplacementSteps, "show-replacement-steps", false,
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"Show detailed resource replacement creates and deletes instead of a single step")
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cmd.PersistentFlags().BoolVar(
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&showSames, "show-sames", false,
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"Show resources that don't need to be updated because they haven't changed, alongside those that do")
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cmd.PersistentFlags().BoolVarP(
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&skipPreview, "skip-preview", "f", false,
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"Do not calculate a preview before performing the destroy")
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cmd.PersistentFlags().BoolVar(
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&suppressOutputs, "suppress-outputs", false,
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"Suppress display of stack outputs (in case they contain sensitive values)")
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cmd.PersistentFlags().StringVar(
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&suppressPermalink, "suppress-permalink", "",
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"Suppress display of the state permalink")
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cmd.Flag("suppress-permalink").NoOptDefVal = "false"
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cmd.PersistentFlags().BoolVarP(
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&yes, "yes", "y", false,
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"Automatically approve and perform the destroy after previewing it")
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if hasDebugCommands() {
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cmd.PersistentFlags().StringVar(
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&eventLogPath, "event-log", "",
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"Log events to a file at this path")
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}
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// internal flags
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cmd.PersistentFlags().StringVar(&execKind, "exec-kind", "", "")
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// ignore err, only happens if flag does not exist
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_ = cmd.PersistentFlags().MarkHidden("exec-kind")
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cmd.PersistentFlags().StringVar(&execAgent, "exec-agent", "", "")
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// ignore err, only happens if flag does not exist
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_ = cmd.PersistentFlags().MarkHidden("exec-agent")
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return cmd
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}
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// seperateProtected returns a list or unprotected and protected resources respectively. This allows
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// us to safely destroy all resources in the unprotected list without invalidating any resource in
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// the protected list. Protection is contravarient: A < B where A: Protected => B: Protected, A < B
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// where B: Protected !=> A: Protected.
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//
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// A
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// B: Parent = A
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// C: Parent = A, Protect = True
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// D: Parent = C
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//
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// -->
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//
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// Unprotected: B, D
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// Protected: A, C
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//
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// We rely on the fact that `resources` is topologically sorted with respect to its dependencies.
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// This function understands that providers live outside this topological sort.
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func seperateProtected(resources []*resource.State) (
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/*unprotected*/ []*resource.State /*protected*/, []*resource.State) {
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dg := graph.NewDependencyGraph(resources)
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transitiveProtected := graph.ResourceSet{}
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for _, r := range resources {
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if r.Protect {
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rProtected := dg.TransitiveDependenciesOf(r)
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rProtected[r] = true
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transitiveProtected.UnionWith(rProtected)
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}
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}
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allResources := graph.NewResourceSetFromArray(resources)
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return allResources.SetMinus(transitiveProtected).ToArray(), transitiveProtected.ToArray()
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}
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// Returns the number of protected resources that remain. Appends all unprotected resources to `targetUrns`.
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func handleExcludeProtected(ctx context.Context, s backend.Stack) ([]resource.URN, int, error) {
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// Get snapshot
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snapshot, err := s.Snapshot(ctx)
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if err != nil {
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return nil, 0, err
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} else if snapshot == nil {
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return nil, 0, errors.New("Failed to find the stack snapshot. Are you in a stack?")
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}
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unprotected, protected := seperateProtected(snapshot.Resources)
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targetUrns := []resource.URN{}
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for _, r := range unprotected {
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targetUrns = append(targetUrns, r.URN)
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}
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return targetUrns, len(protected), nil
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}
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