NewTokenSource creates a token source for the service account credentials.

ReadServiceAccountCreds reads the credentials file for the Firebase service account.

SHA256Sum returns a string of the SHA256 hash of a byte slice using a hexadecimal encoding.

AuthFile relative to source dir.

SiteHashes is a bidirectional map of a site file to the SHA-256 hash of the gzipped contents of the file.

Uploader uploads SiteFiles for a Firebase site version.

FileHash is a hash of file content.