/*
* Copyright 2013 the original author or authors.
*
* 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 org.gradle.nativeplatform.toolchain.internal.gcc;
import org.gradle.api.GradleException;
import org.gradle.api.internal.tasks.SimpleWorkResult;
import org.gradle.language.base.internal.compile.Compiler;
import org.gradle.api.tasks.WorkResult;
import org.gradle.nativeplatform.internal.StaticLibraryArchiverSpec;
import org.gradle.nativeplatform.toolchain.internal.ArgsTransformer;
import org.gradle.nativeplatform.toolchain.internal.CommandLineTool;
import org.gradle.nativeplatform.toolchain.internal.CommandLineToolInvocation;
import org.gradle.nativeplatform.toolchain.internal.MutableCommandLineToolInvocation;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
/**
* A static library archiver based on the GNU 'ar' utility
*/
class ArStaticLibraryArchiver implements Compiler<StaticLibraryArchiverSpec> {
private final CommandLineTool commandLineTool;
private final ArgsTransformer<StaticLibraryArchiverSpec> arguments = new ArchiverSpecToArguments();
private final CommandLineToolInvocation baseInvocation;
public ArStaticLibraryArchiver(CommandLineTool commandLineTool, CommandLineToolInvocation baseInvocation) {
this.commandLineTool = commandLineTool;
this.baseInvocation = baseInvocation;
}
public WorkResult execute(StaticLibraryArchiverSpec spec) {
deletePreviousOutput(spec);
MutableCommandLineToolInvocation invocation = baseInvocation.copy();
invocation.setArgs(arguments.transform(spec));
commandLineTool.execute(invocation);
return new SimpleWorkResult(true);
}
private void deletePreviousOutput(StaticLibraryArchiverSpec spec) {
// Need to delete the previous archive, otherwise stale object files will remain
if (!spec.getOutputFile().isFile()) {
return;
}
if (!(spec.getOutputFile().delete())) {
throw new GradleException("Create static archive failed: could not delete previous archive");
}
}
private static class ArchiverSpecToArguments implements ArgsTransformer<StaticLibraryArchiverSpec> {
public List<String> transform(StaticLibraryArchiverSpec spec) {
List<String> args = new ArrayList<String>();
// -r : Add files to static archive, creating if required
// -c : Don't write message to standard error when creating archive
// -s : Create an object file index (equivalent to running 'ranlib')
args.add("-rcs");
args.addAll(spec.getAllArgs());
args.add(spec.getOutputFile().getAbsolutePath());
for (File file : spec.getObjectFiles()) {
args.add(file.getAbsolutePath());
}
return args;
}
}
}