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// Copyright 2016 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.bazel.e4b.builder;
import java.io.IOException;
import java.util.Map;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IncrementalProjectBuilder;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.osgi.service.prefs.BackingStoreException;
import com.google.devtools.bazel.e4b.Activator;
import com.google.devtools.bazel.e4b.BazelProjectSupport;
import com.google.devtools.bazel.e4b.command.BazelCommand.BazelInstance;
import com.google.devtools.bazel.e4b.command.BazelNotFoundException;
public class BazelBuilder extends IncrementalProjectBuilder {
@Override
protected IProject[] build(int kind, Map<String, String> args, IProgressMonitor monitor)
throws CoreException {
IProject project = getProject();
try {
BazelInstance instance = BazelProjectSupport.getBazelCommandInstance(project);
if (kind == INCREMENTAL_BUILD || kind == AUTO_BUILD) {
IResourceDelta delta = getDelta(getProject());
if (delta == null || delta.getAffectedChildren().length == 0) {
// null build, skip calling Bazel.
return null;
}
}
instance.markAsDirty();
instance.build(BazelProjectSupport.getTargets(project),
BazelProjectSupport.getBuildFlags(project));
} catch (BackingStoreException | IOException | InterruptedException e) {
Activator.error("Failed to build " + project.getName(), e);
} catch (BazelNotFoundException e) {
Activator.error("Bazel not found: " + e.getMessage());
}
return null;
}
}