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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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 android.databinding.tool;
import com.google.common.base.Preconditions;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.gradle.api.DefaultTask;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.TaskAction;
import org.gradle.api.tasks.bundling.Jar;
import android.databinding.tool.processing.Scope;
import android.databinding.tool.util.L;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.List;
/**
* Task to exclude generated classes from the Jar task of a library project
*/
public class DataBindingExcludeGeneratedTask extends DefaultTask {
private String appPackage;
private String infoClassQualifiedName;
@Input
private File generatedClassListFile;
private boolean isLibrary;
private org.gradle.api.tasks.bundling.Jar packageTask;
private final String EXCLUDE_PATTERN = "android/databinding/layouts/*.*";
public void setAppPackage(String appPackage) {
this.appPackage = appPackage;
}
public void setInfoClassQualifiedName(String infoClassQualifiedName) {
this.infoClassQualifiedName = infoClassQualifiedName;
}
public void setLibrary(boolean isLibrary) {
this.isLibrary = isLibrary;
}
public void setPackageTask(Jar packageTask) {
this.packageTask = packageTask;
}
public void setGeneratedClassListFile(File generatedClassListFile) {
this.generatedClassListFile = generatedClassListFile;
}
public String getAppPackage() {
return appPackage;
}
public String getInfoClassQualifiedName() {
return infoClassQualifiedName;
}
public File getGeneratedClassListFile() {
return generatedClassListFile;
}
@TaskAction
public void excludeGenerated() {
L.d("Excluding generated classes from jar. Is library ? %s", isLibrary);
String appPkgAsClass = appPackage.replace('.', '/');
String infoClassAsClass = infoClassQualifiedName.replace('.', '/');
exclude(infoClassAsClass + ".class");
exclude(EXCLUDE_PATTERN);
if (isLibrary) {
exclude(appPkgAsClass + "/BR.*");
exclude("android/databinding/DynamicUtil.class");
List<String> generatedClasses = readGeneratedClasses();
for (String klass : generatedClasses) {
exclude(klass.replace('.', '/') + ".class");
}
}
Scope.assertNoError();
L.d("Excluding generated classes from library jar is done.");
}
private void exclude(String pattern) {
L.d("exclude %s", pattern);
packageTask.exclude(pattern);
}
private List<String> readGeneratedClasses() {
Preconditions.checkNotNull(generatedClassListFile, "Data binding exclude generated task"
+ " is not configured properly");
Preconditions.checkArgument(generatedClassListFile.exists(),
"Generated class list does not exist %s", generatedClassListFile.getAbsolutePath());
FileInputStream fis = null;
try {
fis = new FileInputStream(generatedClassListFile);
return IOUtils.readLines(fis);
} catch (FileNotFoundException e) {
L.e(e, "Unable to read generated class list from %s",
generatedClassListFile.getAbsoluteFile());
} catch (IOException e) {
L.e(e, "Unexpected exception while reading %s",
generatedClassListFile.getAbsoluteFile());
} finally {
IOUtils.closeQuietly(fis);
}
Preconditions.checkState(false, "Could not read data binding generated class list");
return null;
}
}
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