| // Copyright 2020 The Fuchsia 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 main |
| |
| import ( |
| "context" |
| "errors" |
| "fmt" |
| "time" |
| |
| "github.com/maruel/subcommands" |
| "go.chromium.org/luci/auth" |
| "go.chromium.org/luci/common/retry" |
| "go.chromium.org/luci/common/retry/transient" |
| |
| "go.fuchsia.dev/infra/gerrit" |
| ) |
| |
| func cmdTriggerCQ(authOpts auth.Options) *subcommands.Command { |
| return &subcommands.Command{ |
| UsageLine: "trigger-cq -host <gerrit-host> -project <gerrit-project> -change-num <change-num> [-wait] [-timeout <timeout>] [-dryrun]", |
| ShortDesc: "Trigger CQ on a CL.", |
| LongDesc: "Trigger CQ on a CL.", |
| CommandRun: func() subcommands.CommandRun { |
| c := &triggerCQRun{} |
| c.Init(authOpts) |
| return c |
| }, |
| } |
| } |
| |
| type triggerCQRun struct { |
| commonFlags |
| changeNum int64 |
| wait bool |
| timeout time.Duration |
| dryRun bool |
| } |
| |
| func (c *triggerCQRun) Init(defaultAuthOpts auth.Options) { |
| c.commonFlags.Init(defaultAuthOpts) |
| c.Flags.Int64Var(&c.changeNum, "change-num", 0, "Gerrit change number.") |
| c.Flags.BoolVar(&c.wait, "wait", false, "If set, wait for CQ to complete.") |
| c.Flags.DurationVar(&c.timeout, "timeout", 0, "Wait this long for CQ to finish; indefinite if not set.") |
| c.Flags.BoolVar(&c.dryRun, "dryrun", false, "If set, apply CQ+1; otherwise apply CQ+2.") |
| } |
| |
| func (c *triggerCQRun) Parse(a subcommands.Application, args []string) error { |
| if err := c.commonFlags.Parse(); err != nil { |
| return err |
| } |
| if c.changeNum == 0 { |
| return errors.New("-change-num is required") |
| } |
| return nil |
| } |
| |
| func (c *triggerCQRun) main(a subcommands.Application) error { |
| ctx := context.Background() |
| authClient, err := newAuthClient(ctx, c.parsedAuthOpts) |
| if err != nil { |
| return err |
| } |
| client, err := gerrit.NewClient(c.gerritHost, c.gerritProject, authClient) |
| if err != nil { |
| return err |
| } |
| // Retry transient failures when setting CQ label. |
| setLabelRetryPolicy := transient.Only(func() retry.Iterator { |
| return &retry.ExponentialBackoff{ |
| Limited: retry.Limited{ |
| Delay: 20 * time.Second, |
| Retries: 3, |
| }, |
| Multiplier: 1, |
| } |
| }) |
| if err := retry.Retry(ctx, setLabelRetryPolicy, func() error { |
| return client.SetCQLabel(ctx, c.changeNum, c.dryRun) |
| }, nil); err != nil { |
| return err |
| } |
| if !c.wait { |
| return nil |
| } |
| // Check for CQ completion once a minute. |
| retryPolicy := transient.Only(func() retry.Iterator { |
| return &retry.ExponentialBackoff{ |
| Limited: retry.Limited{ |
| Delay: time.Minute, |
| Retries: -1, |
| }, |
| Multiplier: 1, |
| } |
| }) |
| var cancel context.CancelFunc |
| if c.timeout > 0 { |
| ctx, cancel = context.WithTimeout(ctx, c.timeout) |
| defer cancel() |
| } |
| return retry.Retry(ctx, retryPolicy, func() error { |
| return client.CheckCQCompletion(ctx, c.changeNum) |
| }, nil) |
| } |
| |
| func (c *triggerCQRun) Run(a subcommands.Application, args []string, env subcommands.Env) int { |
| if err := c.Parse(a, args); err != nil { |
| fmt.Fprintf(a.GetErr(), "%s: %s\n", a.GetName(), err) |
| return 1 |
| } |
| |
| if err := c.main(a); err != nil { |
| fmt.Fprintf(a.GetErr(), "%s: %s\n", a.GetName(), err) |
| return 1 |
| } |
| return 0 |
| } |