@Nullable
public static ExternalPackage getExternalPackage(Environment env)
throws RepositoryFunctionException {
SkyKey packageKey = PackageValue.key(ExternalPackage.PACKAGE_IDENTIFIER);
PackageValue packageValue;
try {
packageValue = (PackageValue) env.getValueOrThrow(packageKey, NoSuchPackageException.class);
} catch (NoSuchPackageException e) {
throw new RepositoryFunctionException(
new BuildFileNotFoundException(
ExternalPackage.PACKAGE_IDENTIFIER, "Could not load //external package"),
Transience.PERSISTENT);
}
if (packageValue == null) {
return null;
}
ExternalPackage externalPackage = (ExternalPackage) packageValue.getPackage();
if (externalPackage.containsErrors()) {
throw new RepositoryFunctionException(
new BuildFileContainsErrorsException(
ExternalPackage.PACKAGE_IDENTIFIER, "Could not load //external package"),
Transience.PERSISTENT);
}
return externalPackage;
}
