Refactor a bit.

prod/globalinfo.go

-// Copyright 2015 The Chromium 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 prod
-
-import (
-        "time"
-
-        "github.com/luci/gae"
-        "golang.org/x/net/context"
-        "google.golang.org/appengine"
-)
-
-// useGI adds a gae.GlobalInfo implementation to context, accessible
-// by gae.GetGI(c)
-func useGI(c context.Context) context.Context {
-        return gae.SetGIFactory(c, func(ci context.Context) gae.GlobalInfo {
-                return giImpl{ci}
-        })
-}
-
-type giImpl struct{ context.Context }
-
-func (g giImpl) AccessToken(scopes ...string) (token string, expiry time.Time, err error) {
-        return appengine.AccessToken(g, scopes...)
-}
-func (g giImpl) AppID() string {
-        return appengine.AppID(g)
-}
-func (g giImpl) Datacenter() string {
-        return appengine.Datacenter(g)
-}
-func (g giImpl) DefaultVersionHostname() string {
-        return appengine.DefaultVersionHostname(g)
-}
-func (g giImpl) InstanceID() string {
-        return appengine.InstanceID()
-}
-func (g giImpl) IsDevAppServer() bool {
-        return appengine.IsDevAppServer()
-}
-func (g giImpl) IsOverQuota(err error) bool {
-        return appengine.IsOverQuota(err)
-}
-func (g giImpl) IsTimeoutError(err error) bool {
-        return appengine.IsTimeoutError(err)
-}
-func (g giImpl) ModuleHostname(module, version, instance string) (string, error) {
-        return appengine.ModuleHostname(g, module, version, instance)
-}
-func (g giImpl) ModuleName() (name string) {
-        return appengine.ModuleName(g)
-}
-func (g giImpl) Namespace(namespace string) (context.Context, error) {
-        return appengine.Namespace(g, namespace)
-}
-func (g giImpl) PublicCertificates() ([]gae.GICertificate, error) {
-        certs, err := appengine.PublicCertificates(g)
-        if err != nil {
-                return nil, err
-        }
-        ret := make([]gae.GICertificate, len(certs))
-        for i, c := range certs {
-                ret[i] = (gae.GICertificate)(c)
-        }
-        return ret, nil
-}
-func (g giImpl) RequestID() string {
-        return appengine.RequestID(g)
-}
-func (g giImpl) ServerSoftware() string {
-        return appengine.ServerSoftware()
-}
-func (g giImpl) ServiceAccount() (string, error) {
-        return appengine.ServiceAccount(g)
-}
-func (g giImpl) SignBytes(bytes []byte) (keyName string, signature []byte, err error) {
-        return appengine.SignBytes(g, bytes)
-}
-func (g giImpl) VersionID() string {
-        return appengine.VersionID(g)
-}