ba046b063b
* Add --version flag to 'pulumi stack export' * Update CHANGELOG * Update/rebase with latest * Fix lint warning
107 lines
3.3 KiB
Go
107 lines
3.3 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 cmd
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import (
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"encoding/json"
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"os"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/pulumi/pulumi/pkg/apitype"
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"github.com/pulumi/pulumi/pkg/backend"
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"github.com/pulumi/pulumi/pkg/backend/display"
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"github.com/pulumi/pulumi/pkg/util/cmdutil"
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)
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func newStackExportCmd() *cobra.Command {
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var file string
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var stackName string
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var version string
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cmd := &cobra.Command{
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Use: "export",
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Args: cmdutil.MaximumNArgs(0),
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Short: "Export a stack's deployment to standard out",
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Long: "Export a stack's deployment to standard out.\n" +
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"\n" +
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"The deployment can then be hand-edited and used to update the stack via\n" +
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"`pulumi stack import`. This process may be used to correct inconsistencies\n" +
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"in a stack's state due to failed deployments, manual changes to cloud\n" +
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"resources, etc.",
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Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
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ctx := commandContext()
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opts := display.Options{
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Color: cmdutil.GetGlobalColorization(),
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}
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// Fetch the current stack and export its deployment
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s, err := requireStack(stackName, false, opts, true /*setCurrent*/)
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if err != nil {
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return err
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}
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var deployment *apitype.UntypedDeployment
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// Export the latest version of the checkpoint by default. Otherwise, we require that
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// the backend/stack implements the ability the export previous checkpoints.
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if version == "" {
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deployment, err = s.ExportDeployment(ctx)
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if err != nil {
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return err
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}
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} else {
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// Check that the stack and its backend supports the ability to do this.
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be := s.Backend()
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specificExpBE, ok := be.(backend.SpecificDeploymentExporter)
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if !ok {
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return errors.Errorf(
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"the current backend (%s) does not provide the ability to export previous deployments",
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be.Name())
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}
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deployment, err = specificExpBE.ExportDeploymentForVersion(ctx, s, version)
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if err != nil {
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return err
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}
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}
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// Read from stdin or a specified file.
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writer := os.Stdout
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if file != "" {
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writer, err = os.Create(file)
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if err != nil {
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return errors.Wrap(err, "could not open file")
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}
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}
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// Write the deployment.
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enc := json.NewEncoder(writer)
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enc.SetIndent("", " ")
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if err = enc.Encode(deployment); err != nil {
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return errors.Wrap(err, "could not export deployment")
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}
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return nil
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}),
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}
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cmd.PersistentFlags().StringVarP(
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&stackName, "stack", "s", "", "The name of the stack to operate on. Defaults to the current stack")
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cmd.PersistentFlags().StringVarP(
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&file, "file", "", "", "A filename to write stack output to")
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cmd.PersistentFlags().StringVarP(
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&version, "version", "", "", "Previous stack version to export. (If unset, will export the latest.)")
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return cmd
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}
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