blob: ebcbec461d8460b3eca0d48884d7d78a6769d871 [file] [log] [blame]
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package task
import (
"fmt"
wf "golang.org/x/build/internal/workflow"
)
type PrivateMasterSyncTask struct {
Git *Git
PrivateGerritURL string
Ref string
}
func (t *PrivateMasterSyncTask) NewDefinition() *wf.Definition {
wd := wf.New()
// We use a Task, instead of an Action, even though we don't actually want
// to return any result, because nothing depends on the Action, and if we
// use an Action the definition will tell us we don't reference it anywhere
// and say it should be deleted.
synced := wf.Task0(wd, "Sync go-private master to public", func(ctx *wf.TaskContext) (string, error) {
repo, err := t.Git.Clone(ctx, t.PrivateGerritURL)
if err != nil {
return "", err
}
// NOTE: we assume this is generally safe in the case of a race between
// submitting a patch and resetting the master branch due to the ordering
// of operations at Gerrit. If the submit wins, we reset the master
// branch, and the submitted commit is orphaned, which is the expected
// behavior anyway. If the reset wins, the submission will either be
// cherry-picked onto the new base, which should either succeed, or fail
// due to a merge conflict, or Gerrit will reject the submission because
// something changed underneath it. Either case seems fine.
if _, err := repo.RunCommand(ctx.Context, "push", "--force", "origin", fmt.Sprintf("origin/%s:refs/heads/master", t.Ref)); err != nil {
return "", err
}
return "finished", nil
})
wf.Output(wd, fmt.Sprintf("Reset master to %s", t.Ref), synced)
return wd
}