func NewHTTPClient()

in plugin/http_client.go [42:75]
26 lines of code
6 McCabe index (conditional complexity)

func NewHTTPClient(ctx context.Context, pathToGCEConf string) (*http.Client, error) {
	if pathToGCEConf != "" {
		r, err := os.Open(pathToGCEConf)
		if err != nil {
			return nil, fmt.Errorf("failed to open GCE Config: %s", pathToGCEConf)
		}
		defer r.Close()

		c, err := readConfig(r)
		if err != nil {
			return nil, err
		}

		if (tokenConfig{} == *c) {
			glog.Infof("Since TokenConfig contains neither TokenURI nor TokenBody assuming that running on GCE (ex. via kube-up.sh)")
			return getDefaultClient(ctx)
		}

		// Running on GKE Hosted Master
		glog.Infof("TokenURI:%s, TokenBody:%s - assuming that running on a Hosted Master - GKE.", c.Global.TokenURL, c.Global.TokenBody)
		a := newAltTokenSource(ctx, c.Global.TokenURL, c.Global.TokenBody)

		// TODO: Do I need to call a.Token to get access token here?
		if _, err := a.Token(); err != nil {
			glog.Errorf("error fetching initial token: %v", err)
			return nil, err
		}

		return oauth2.NewClient(ctx, a), nil
	}

	glog.Infof("Path to gce.conf was not supplied - assuming that need to rely on exported service account key.")
	return getDefaultClient(ctx)
}