pulumi/cmd/plugin_prune.go
joeduffy c04341edb2 Consult the program for its list of plugins
This change adds a GetRequiredPlugins RPC method to the language
host, enabling us to query it for its list of plugin requirements.
This is language-specific because it requires looking at the set
of dependencies (e.g., package.json files).

It also adds a call up front during any update/preview operation
to compute the set of plugins and require that they are present.
These plugins are populated in the cache and will be used for all
subsequent plugin-related operations during the engine's activity.

We now cache the language plugins, so that we may load them
eagerly too, which we never did previously due to the fact that
we needed to pass the monitor address at load time.  This was a
bit bizarre anyhow, since it's really the Run RPC function that
needs this information.  So, to enable caching and eager loading
-- which we need in order to invoke GetRequiredPlugins -- the
"phone home" monitor RPC address is passed at Run time.

In a subsequent change, we will switch to faulting in the plugins
that are missing -- rather than erroring -- in addition to
supporting the `pulumi plugin install` CLI command.
2018-02-18 08:08:15 -08:00

98 lines
2.9 KiB
Go

// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
package cmd
import (
"fmt"
"github.com/blang/semver"
"github.com/hashicorp/go-multierror"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/pulumi/pulumi/pkg/util/cmdutil"
"github.com/pulumi/pulumi/pkg/workspace"
)
func newPluginPruneCmd() *cobra.Command {
var all bool
var yes bool
var cmd = &cobra.Command{
Use: "prune [KIND [NAME [VERSION]]]",
Args: cmdutil.MaximumNArgs(3),
Short: "Prune one or more plugins from the download cache",
Long: "Prune one or more plugins from the download cache.\n" +
"\n" +
"Specify KIND, NAME, and/or VERSION to narrow down what will be pruned.\n" +
"If none are specified, the entire cache will be pruned. If only KIND and\n" +
"NAME are specified, but not VERSION, all versions of the plugin with the\n" +
"given KIND and NAME will be pruned. VERSION may be a range.\n" +
"\n" +
"If a pruned plugin is subsequently required in order to execute a Pulumi\n" +
"program, it will be automatically re-downloaded. Plugins may be explicitly\n" +
"downloaded and installed using the plugin install command.",
Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
// Parse the filters.
var kind workspace.PluginKind
var name string
var version *semver.Range
if len(args) > 0 {
if !workspace.IsPluginKind(args[0]) {
return errors.Errorf("unrecognized plugin kind: %s", kind)
}
kind = workspace.PluginKind(args[0])
}
if len(args) > 1 {
name = args[1]
}
if len(args) > 2 {
r, err := semver.ParseRange(args[2])
if err != nil {
return errors.Wrap(err, "invalid plugin semver")
}
version = &r
}
// Now build a list of plugins that match.
var deletes []workspace.PluginInfo
plugins, err := workspace.GetPlugins()
if err != nil {
return errors.Wrap(err, "loading plugins")
}
for _, plugin := range plugins {
if (kind == "" || plugin.Kind == kind) &&
(name == "" || plugin.Name == name) &&
(version == nil || (plugin.Version != nil && (*version)(*plugin.Version))) {
deletes = append(deletes, plugin)
}
}
// Confirm that the user wants to do this (unless --yes was passed), and do the deletes.
var suffix string
if len(deletes) != 1 {
suffix = "s"
}
prompt := fmt.Sprintf("This will remove %d plugin%s from the cache.", len(deletes), suffix)
if yes || confirmPrompt(prompt, "yes") {
var result error
for _, plugin := range deletes {
if err := plugin.Delete(); err != nil {
result = multierror.Append(
result, errors.Wrapf(err, "failed to delete plugin %s", plugin.Path))
}
}
if result != nil {
return result
}
}
return nil
}),
}
cmd.PersistentFlags().BoolVarP(&all, "all", "a", false, "Remove all plugins")
cmd.PersistentFlags().BoolVar(&yes, "yes", false, "Skip confirmation prompts, and proceed with removal anyway")
return cmd
}