org.springframework.boot.gradle.plugin.JarTypeFileSpec Maven / Gradle / Ivy
/*
* Copyright 2012-2020 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
*
* https://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.springframework.boot.gradle.plugin;
import java.io.File;
import java.util.Collections;
import java.util.Set;
import java.util.jar.JarFile;
import org.gradle.api.file.FileCollection;
import org.gradle.api.specs.Spec;
/**
* A {@link Spec} for {@link FileCollection#filter(Spec) filtering} {@code FileCollection}
* to remove jar files based on their {@code Spring-Boot-Jar-Type} as defined in the
* manifest. Jars of type {@code dependencies-starter} are excluded.
*
* @author Andy Wilkinson
*/
class JarTypeFileSpec implements Spec {
private static final Set EXCLUDED_JAR_TYPES = Collections.singleton("dependencies-starter");
@Override
public boolean isSatisfiedBy(File file) {
try (JarFile jar = new JarFile(file)) {
String jarType = jar.getManifest().getMainAttributes().getValue("Spring-Boot-Jar-Type");
if (jarType != null && EXCLUDED_JAR_TYPES.contains(jarType)) {
return false;
}
}
catch (Exception ex) {
// Continue
}
return true;
}
}