Function retrySleep

pkgs/git/remote.go:13–15

(attempt int)

const retryMaxAttempts = 3

func retrySleep(attempt int) {
	time.Sleep(time.Duration(attempt) * time.Second)
}

// CheckIfRemoteBranch check if repoRef is a branch.
func CheckIfRemoteBranch(target, repoUrl, repoRef string) (bool, error) {