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// Copyright 2015 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.bazel.repository;
import com.google.devtools.build.lib.analysis.BlazeDirectories;
import com.google.devtools.build.lib.analysis.RuleDefinition;
import com.google.devtools.build.lib.bazel.rules.workspace.GitRepositoryRule;
import com.google.devtools.build.lib.packages.Rule;
import com.google.devtools.build.lib.rules.repository.RepositoryDirectoryValue;
import com.google.devtools.build.lib.rules.repository.RepositoryFunction;
import com.google.devtools.build.lib.vfs.FileSystemUtils;
import com.google.devtools.build.lib.vfs.Path;
import com.google.devtools.build.skyframe.SkyFunction.Environment;
import com.google.devtools.build.skyframe.SkyFunctionException.Transience;
import com.google.devtools.build.skyframe.SkyValue;
import java.io.IOException;
/**
* Clones a Git repository.
*/
public class GitRepositoryFunction extends RepositoryFunction {
@Override
public boolean isLocal(Rule rule) {
return false;
}
@Override
public SkyValue fetch(
Rule rule, Path outputDirectory, BlazeDirectories directories, Environment env)
throws InterruptedException, RepositoryFunctionException {
createDirectory(outputDirectory, rule);
GitCloner.clone(rule, outputDirectory, env.getListener(), clientEnvironment);
return RepositoryDirectoryValue.create(outputDirectory);
}
protected static void createDirectory(Path path, Rule rule) throws RepositoryFunctionException {
try {
FileSystemUtils.createDirectoryAndParents(path);
} catch (IOException e) {
throw new RepositoryFunctionException(new IOException("Could not create directory for "
+ rule.getName() + ": " + e.getMessage()), Transience.TRANSIENT);
}
}
@Override
public Class<? extends RuleDefinition> getRuleDefinition() {
return GitRepositoryRule.class;
}
}
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