Method tokenCacheKey

pkg/credentials/github/app.go:253–268

tokenCacheKey returns a cache key for an installation access token. The key is a hash of the app/client ID, installation ID, PEM-encoded GitHub App private key, and repo URL. Using a hash ensures that a private decodable key is not stored in the cache.

(
	appOrClientID string,
	installationID int64,
	encodedPrivateKey string,
	repoURL string,
)

// private key, and repo URL. Using a hash ensures that a private decodable key
// is not stored in the cache.
func (p *AppCredentialProvider) tokenCacheKey(
	appOrClientID string,
	installationID int64,
	encodedPrivateKey string,
	repoURL string,
) string {
	return fmt.Sprintf(
		"%x",
		sha256.Sum256([]byte(
			fmt.Sprintf(
				"%s:%d:%s:%s",
				appOrClientID, installationID, encodedPrivateKey, repoURL),
		),
		),
	)
}

// decodeKey attempts to base64 decode a key. If successful, it returns the
// result. If it fails, it attempts to infer whether the input was simply NOT