func extractGitSource(git git.Git, gitSource *api.GitBuildSource, revision *api.SourceRevision, dir string, timeout time.Duration) (bool, error) {
if gitSource == nil {
return false, nil
}
// Set the HTTP and HTTPS proxies to be used by git clone.
originalProxies := setHTTPProxy(gitSource.HTTPProxy, gitSource.HTTPSProxy)
defer resetHTTPProxy(originalProxies)
// Check source URI, trying to connect to the server only if not using a proxy.
if err := checkSourceURI(git, gitSource.URI, timeout); err != nil {
return true, err
}
glog.V(2).Infof("Cloning source from %s", gitSource.URI)
if err := git.Clone(gitSource.URI, dir, s2iapi.CloneConfig{Recursive: true, Quiet: true}); err != nil {
return true, err
}
// if we specify a commit, ref, or branch to checkout, do so
if len(gitSource.Ref) != 0 || (revision != nil && revision.Git != nil && len(revision.Git.Commit) != 0) {
commit := gitSource.Ref
if revision != nil && revision.Git != nil && revision.Git.Commit != "" {
commit = revision.Git.Commit
}
if err := git.Checkout(dir, commit); err != nil {
return true, err
}
}
return true, nil
}
