548c22d014
This brings back the Node.js language plugin's GetRequiredPlugins function, reimplemented in Go now that the language host has been rewritten from JavaScript. Fairly rote translation, along with some random fixes required to get tests passing again.
102 lines
3.5 KiB
Go
102 lines
3.5 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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package cmd
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import (
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"io"
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"os"
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"github.com/blang/semver"
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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/backend/cloud"
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"github.com/pulumi/pulumi/pkg/util/cmdutil"
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"github.com/pulumi/pulumi/pkg/workspace"
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)
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func newPluginInstallCmd() *cobra.Command {
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var cloudURL string
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var file string
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var cmd = &cobra.Command{
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Use: "install [KIND NAME VERSION]",
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Args: cmdutil.MaximumNArgs(3),
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Short: "Install one or more plugins",
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Long: "Install one or more plugins.\n" +
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"\n" +
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"By default, Pulumi will download plugins as needed during program execution.\n" +
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"If you prefer, you may use the install command to manually install plugins:\n" +
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"either by running it with a specific KIND, NAME, and VERSION, or by omitting\n" +
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"these and letting Pulumi compute the set of plugins that may be required by\n" +
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"the current project. VERSION cannot be a range: it must be a specific number.\n" +
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"\n" +
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"Note that in this latter mode, Pulumi is conservative and may download more\n" +
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"than is strictly required. To only download the precise list of what a project\n" +
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"needs, simply run Pulumi in its default mode of downloading them on demand: it\n" +
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"will download precisely what it needs.",
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Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
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// Parse the kind, name, and version, if specified.
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var installs []workspace.PluginInfo
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if len(args) > 0 {
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if !workspace.IsPluginKind(args[0]) {
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return errors.Errorf("unrecognized plugin kind: %s", args[0])
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} else if len(args) < 2 {
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return errors.New("missing plugin name argument")
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} else if len(args) < 3 {
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return errors.New("missing plugin version argument")
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}
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version, err := semver.ParseTolerant(args[2])
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if err != nil {
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return errors.Wrap(err, "invalid plugin semver")
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}
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installs = append(installs, workspace.PluginInfo{
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Kind: workspace.PluginKind(args[0]),
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Name: args[1],
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Version: &version,
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})
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} else if file == "" {
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return errors.New("--file (-f) is only valid if a specific package is being installed")
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}
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// If a specific plugin wasn't given, compute the set of plugins the current project needs.
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// TODO[pulumi/home#11]: before calling this work item complete, we need to implement this.
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// Target the cloud URL for downloads.
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var releases cloud.Backend
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if len(installs) > 0 && file != "" {
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releases = cloud.New(cmdutil.Diag(), cloud.ValueOrDefaultURL(cloudURL))
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}
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// Now for each kind, name, version pair, download it from the release website, and install it.
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for _, install := range installs {
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var source string
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var tarball io.ReadCloser
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var err error
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if file == "" {
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source = releases.CloudURL()
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if tarball, err = releases.DownloadPlugin(install, true); err != nil {
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return errors.Wrapf(err, "downloading %s from %s", install.String(), source)
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}
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} else {
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source = file
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if tarball, err = os.Open(file); err != nil {
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return errors.Wrapf(err, "opening file %s", source)
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}
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}
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if err = install.Install(tarball); err != nil {
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return errors.Wrapf(err, "installing %s from %s", install.String(), source)
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}
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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(&cloudURL,
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"cloud-url", "c", "", "A cloud URL to download releases from")
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cmd.PersistentFlags().StringVarP(&file,
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"file", "f", "", "Install a plugin from a tarball file, instead of downloading it")
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return cmd
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}
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