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Code Pull Requests 1 Activity

google: remove Go 1.8 support

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Assume Go 1.9+, which is broader than Go's current Go 1.10+ support policy.

Change-Id: I9fe6954d21c2279cf4ea7da4d5bc7a9290a3bae2
Reviewed-on: https://go-review.googlesource.com/c/146677
Reviewed-by: Ross Light <light@google.com>
This commit is contained in:
Brad Fitzpatrick
2018-11-01 16:53:39 +00:00
committed by Ross Light
parent e0f2c55a7f
commit 232e455483
5 changed files with 41 additions and 164 deletions
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45
google/default.go
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@@ -18,6 +18,25 @@ import (
"golang.org/x/oauth2"
)
// Credentials holds Google credentials, including "Application Default Credentials".
// For more details, see:
// https://developers.google.com/accounts/docs/application-default-credentials
type Credentials struct {
ProjectID string // may be empty
TokenSource oauth2.TokenSource
// JSON contains the raw bytes from a JSON credentials file.
// This field may be nil if authentication is provided by the
// environment and not with a credentials file, e.g. when code is
// running on Google Cloud Platform.
JSON []byte
}
// DefaultCredentials is the old name of Credentials.
//
// Deprecated: use Credentials instead.
type DefaultCredentials = Credentials
// DefaultClient returns an HTTP Client that uses the
// DefaultTokenSource to obtain authentication credentials.
func DefaultClient(ctx context.Context, scope ...string) (*http.Client, error) {
@@ -39,8 +58,23 @@ func DefaultTokenSource(ctx context.Context, scope ...string) (oauth2.TokenSourc
return creds.TokenSource, nil
}
// Common implementation for FindDefaultCredentials.
func findDefaultCredentials(ctx context.Context, scopes []string) (*DefaultCredentials, error) {
// FindDefaultCredentials searches for "Application Default Credentials".
//
// It looks for credentials in the following places,
// preferring the first location found:
//
// 1. A JSON file whose path is specified by the
// GOOGLE_APPLICATION_CREDENTIALS environment variable.
// 2. A JSON file in a location known to the gcloud command-line tool.
// On Windows, this is %APPDATA%/gcloud/application_default_credentials.json.
// On other systems, $HOME/.config/gcloud/application_default_credentials.json.
// 3. On Google App Engine standard first generation runtimes (<= Go 1.9) it uses
// the appengine.AccessToken function.
// 4. On Google Compute Engine, Google App Engine standard second generation runtimes
// (>= Go 1.11), and Google App Engine flexible environment, it fetches
// credentials from the metadata server.
// (In this final case any provided scopes are ignored.)
func FindDefaultCredentials(ctx context.Context, scopes ...string) (*Credentials, error) {
// First, try the environment variable.
const envVar = "GOOGLE_APPLICATION_CREDENTIALS"
if filename := os.Getenv(envVar); filename != "" {
@@ -84,8 +118,11 @@ func findDefaultCredentials(ctx context.Context, scopes []string) (*DefaultCrede
return nil, fmt.Errorf("google: could not find default credentials. See %v for more information.", url)
}
// Common implementation for CredentialsFromJSON.
func credentialsFromJSON(ctx context.Context, jsonData []byte, scopes []string) (*DefaultCredentials, error) {
// CredentialsFromJSON obtains Google credentials from a JSON value. The JSON can
// represent either a Google Developers Console client_credentials.json file (as in
// ConfigFromJSON) or a Google Developers service account key file (as in
// JWTConfigFromJSON).
func CredentialsFromJSON(ctx context.Context, jsonData []byte, scopes ...string) (*Credentials, error) {
var f credentialsFile
if err := json.Unmarshal(jsonData, &f); err != nil {
return nil, err