| // Copyright 2018 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package com.google.devtools.build.lib.skyframe; |
| |
| import com.google.devtools.build.lib.cmdline.PackageIdentifier; |
| import com.google.devtools.build.lib.packages.NoSuchPackageException; |
| import com.google.devtools.build.lib.packages.Package; |
| import com.google.devtools.build.skyframe.SkyFunction; |
| import com.google.devtools.build.skyframe.SkyKey; |
| import com.google.devtools.build.skyframe.SkyValue; |
| import javax.annotation.Nullable; |
| |
| /** {@link SkyFunction} for {@link PackageErrorMessageValue}. */ |
| public class PackageErrorMessageFunction implements SkyFunction { |
| @Nullable |
| @Override |
| public SkyValue compute(SkyKey skyKey, Environment env) throws InterruptedException { |
| PackageIdentifier pkgId = (PackageIdentifier) skyKey.argument(); |
| PackageValue pkgValue; |
| try { |
| pkgValue = |
| (PackageValue) env.getValueOrThrow(PackageValue.key(pkgId), NoSuchPackageException.class); |
| } catch (NoSuchPackageException e) { |
| return PackageErrorMessageValue.ofNoSuchPackageException(e.getMessage()); |
| } |
| if (pkgValue == null) { |
| return null; |
| } |
| Package pkg = pkgValue.getPackage(); |
| return pkg.containsErrors() |
| ? PackageErrorMessageValue.ofPackageWithErrors() |
| : PackageErrorMessageValue.ofPackageWithNoErrors(); |
| } |
| |
| @Nullable |
| @Override |
| public String extractTag(SkyKey skyKey) { |
| return null; |
| } |
| } |