pulumi/pkg/engine/destroy.go
Joe Duffy be26db3ffa
Eliminate needless level of closure indirection (#1085)
This was CR feedback from @swgillespie.
2018-03-29 08:57:25 -07:00

45 lines
1.3 KiB
Go

// Copyright 2018, Pulumi Corporation. All rights reserved.
package engine
import (
"github.com/pulumi/pulumi/pkg/resource/deploy"
"github.com/pulumi/pulumi/pkg/resource/plugin"
"github.com/pulumi/pulumi/pkg/util/contract"
"github.com/pulumi/pulumi/pkg/workspace"
)
func Destroy(u UpdateInfo, events chan<- Event, opts UpdateOptions) (ResourceChanges, error) {
contract.Require(u != nil, "u")
defer func() { events <- cancelEvent() }()
ctx, err := newPlanContext(u)
if err != nil {
return nil, err
}
defer ctx.Close()
emitter := makeEventEmitter(events, u)
return update(ctx, planOptions{
UpdateOptions: opts,
SourceFunc: newDestroySource,
Events: emitter,
Diag: newEventSink(emitter),
})
}
func newDestroySource(opts planOptions, proj *workspace.Project, pwd, main string,
target *deploy.Target, plugctx *plugin.Context) (deploy.Source, error) {
// For destroy, we consult the manifest for the plugin versions/ required to destroy it.
if target != nil && target.Snapshot != nil {
if err := plugctx.Host.EnsurePlugins(target.Snapshot.Manifest.Plugins); err != nil {
return nil, err
}
}
// Create a nil source. This simply returns "nothing" as the new state, which will cause the
// engine to destroy the entire existing state.
return deploy.NullSource, nil
}