pulumi/cmd/destroy.go

// Copyright 2016-2018, Pulumi Corporation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package cmd

import (
	"context"

	"github.com/pkg/errors"
	"github.com/spf13/cobra"

	"github.com/pulumi/pulumi/pkg/backend"
	"github.com/pulumi/pulumi/pkg/engine"
	"github.com/pulumi/pulumi/pkg/util/cmdutil"
)

func newDestroyCmd() *cobra.Command {
	var debug bool
	var stack string

	var message string

	// Flags for engine.UpdateOptions.
	var analyzers []string
	var diffDisplay bool
	var parallel int
	var showConfig bool
	var showReplacementSteps bool
	var showSames bool
	var nonInteractive bool
	var skipPreview bool
	var yes bool

	var cmd = &cobra.Command{
		Use:        "destroy",
		SuggestFor: []string{"delete", "down", "kill", "remove", "rm", "stop"},
		Short:      "Destroy an existing stack and its resources",
		Long: "Destroy an existing stack and its resources\n" +
			"\n" +
			"This command deletes an entire existing stack by name.  The current state is\n" +
			"loaded from the associated snapshot file in the workspace.  After running to completion,\n" +
			"all of this stack's resources and associated state will be gone.\n" +
			"\n" +
			"Warning: although old snapshots can be used to recreate a stack, this command\n" +
			"is generally irreversible and should be used with great care.",
		Args: cmdutil.NoArgs,
		Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
			interactive := isInteractive(nonInteractive)
			if !interactive {
				yes = true // auto-approve changes, since we cannot prompt.
			}

			opts, err := updateFlagsToOptions(interactive, skipPreview, yes)
			if err != nil {
				return err
			}

			opts.Display = backend.DisplayOptions{
				Color:                cmdutil.GetGlobalColorization(),
				ShowConfig:           showConfig,
				ShowReplacementSteps: showReplacementSteps,
				ShowSameResources:    showSames,
				IsInteractive:        interactive,
				DiffDisplay:          diffDisplay,
				Debug:                debug,
			}

			s, err := requireStack(stack, false, opts.Display, true /*setCurrent*/)
			if err != nil {
				return err
			}
			proj, root, err := readProject()
			if err != nil {
				return err
			}

			m, err := getUpdateMetadata(message, root)
			if err != nil {
				return errors.Wrap(err, "gathering environment metadata")
			}

			opts.Engine = engine.UpdateOptions{
				Analyzers: analyzers,
				Parallel:  parallel,
				Debug:     debug,
			}

			_, err = s.Destroy(commandContext(), proj, root, m, opts, cancellationScopes)
			if err == context.Canceled {
				return errors.New("destroy cancelled")
			}
			return PrintEngineError(err)
		}),
	}

	cmd.PersistentFlags().BoolVarP(
		&debug, "debug", "d", false,
		"Print detailed debugging output during resource operations")
	cmd.PersistentFlags().StringVarP(
		&stack, "stack", "s", "",
		"The name of the stack to operate on. Defaults to the current stack")
	cmd.PersistentFlags().StringVarP(
		&message, "message", "m", "",
		"Optional message to associate with the destroy operation")

	// Flags for engine.UpdateOptions.
	cmd.PersistentFlags().StringSliceVar(
		&analyzers, "analyzer", []string{},
		"Run one or more analyzers as part of this update")
	cmd.PersistentFlags().BoolVar(
		&diffDisplay, "diff", false,
		"Display operation as a rich diff showing the overall change")
	cmd.PersistentFlags().BoolVar(
		&nonInteractive, "non-interactive", false, "Disable interactive mode")
	cmd.PersistentFlags().IntVarP(
		&parallel, "parallel", "p", 10,
		"Allow P resource operations to run in parallel at once (<=1 for no parallelism)")
	cmd.PersistentFlags().BoolVar(
		&showConfig, "show-config", false,
		"Show configuration keys and variables")
	cmd.PersistentFlags().BoolVar(
		&showReplacementSteps, "show-replacement-steps", false,
		"Show detailed resource replacement creates and deletes instead of a single step")
	cmd.PersistentFlags().BoolVar(
		&showSames, "show-sames", false,
		"Show resources that don't need to be updated because they haven't changed, alongside those that do")
	cmd.PersistentFlags().BoolVar(
		&skipPreview, "skip-preview", false,
		"Do not perform a preview before performing the destroy")
	cmd.PersistentFlags().BoolVarP(
		&yes, "yes", "y", false,
		"Automatically approve and perform the destroy after previewing it")

	return cmd
}