Method maybeCheckForUpdates

cli/update_check.go:160–195

(ctx context.Context)

}

func (c *App) maybeCheckForUpdates(ctx context.Context) (string, error) {
	if v := os.Getenv(c.EnvName(checkForUpdatesEnvar)); v != "" {
		// see if environment variable is set to false.
		if b, err := strconv.ParseBool(v); err == nil && !b {
			return "", errors.New("update check disabled")
		}
	}

	us, err := c.getUpdateState()
	if err != nil {
		return "", err
	}

	if err := c.maybeCheckGithub(ctx, us); err != nil {
		return "", errors.Wrap(err, "error checking GitHub")
	}

	log(ctx).Debugf("build version %v, available %v", ensureVPrefix(repo.BuildVersion), ensureVPrefix(us.AvailableVersion))

	if us.AvailableVersion == "" || semver.Compare(ensureVPrefix(repo.BuildVersion), ensureVPrefix(us.AvailableVersion)) >= 0 {
		// no new version available
		return "", nil
	}

	if clock.Now().After(us.NextNotifyTime) {
		us.NextNotifyTime = clock.Now().Add(c.updateAvailableNotifyInterval)
		if err := c.writeUpdateState(us); err != nil {
			return "", errors.Wrap(err, "unable to write update state")
		}

		return us.AvailableVersion, nil
	}

	// no time to notify yet
	return "", nil
}

func (c *App) maybeCheckGithub(ctx context.Context, us *updateState) error {
	if !clock.Now().After(us.NextCheckTime) {