--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/lib/testlibrary/JarUtils.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,202 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+import java.util.Set;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.jar.JarOutputStream;
+import java.util.jar.Manifest;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ * This class consists exclusively of static utility methods that are useful
+ * for creating and manipulating JAR files.
+ */
+
+public final class JarUtils {
+ private JarUtils() { }
+
+ /**
+ * Creates a JAR file.
+ *
+ * Equivalent to {@code jar cfm <jarfile> <manifest> -C <dir> file...}
+ *
+ * The input files are resolved against the given directory. Any input
+ * files that are directories are processed recursively.
+ */
+ public static void createJarFile(Path jarfile, Manifest man, Path dir, Path... file)
+ throws IOException
+ {
+ // create the target directory
+ Path parent = jarfile.getParent();
+ if (parent != null)
+ Files.createDirectories(parent);
+
+ List<Path> entries = new ArrayList<>();
+ for (Path entry : file) {
+ Files.find(dir.resolve(entry), Integer.MAX_VALUE,
+ (p, attrs) -> attrs.isRegularFile())
+ .map(e -> dir.relativize(e))
+ .forEach(entries::add);
+ }
+
+ try (OutputStream out = Files.newOutputStream(jarfile);
+ JarOutputStream jos = new JarOutputStream(out))
+ {
+ if (man != null) {
+ JarEntry je = new JarEntry(JarFile.MANIFEST_NAME);
+ jos.putNextEntry(je);
+ man.write(jos);
+ jos.closeEntry();
+ }
+
+ for (Path entry : entries) {
+ String name = toJarEntryName(entry);
+ jos.putNextEntry(new JarEntry(name));
+ Files.copy(dir.resolve(entry), jos);
+ jos.closeEntry();
+ }
+ }
+ }
+
+ /**
+ * Creates a JAR file.
+ *
+ * Equivalent to {@code jar cf <jarfile> -C <dir> file...}
+ *
+ * The input files are resolved against the given directory. Any input
+ * files that are directories are processed recursively.
+ */
+ public static void createJarFile(Path jarfile, Path dir, Path... file)
+ throws IOException
+ {
+ createJarFile(jarfile, null, dir, file);
+ }
+
+ /**
+ * Creates a JAR file.
+ *
+ * Equivalent to {@code jar cf <jarfile> -C <dir> file...}
+ *
+ * The input files are resolved against the given directory. Any input
+ * files that are directories are processed recursively.
+ */
+ public static void createJarFile(Path jarfile, Path dir, String... input)
+ throws IOException
+ {
+ Path[] paths = Stream.of(input).map(Paths::get).toArray(Path[]::new);
+ createJarFile(jarfile, dir, paths);
+ }
+
+ /**
+ * Creates a JAR file from the contents of a directory.
+ *
+ * Equivalent to {@code jar cf <jarfile> -C <dir> .}
+ */
+ public static void createJarFile(Path jarfile, Path dir) throws IOException {
+ createJarFile(jarfile, dir, Paths.get("."));
+ }
+
+ /**
+ * Update a JAR file.
+ *
+ * Equivalent to {@code jar uf <jarfile> -C <dir> file...}
+ *
+ * The input files are resolved against the given directory. Any input
+ * files that are directories are processed recursively.
+ */
+ public static void updateJarFile(Path jarfile, Path dir, Path... file)
+ throws IOException
+ {
+ List<Path> entries = new ArrayList<>();
+ for (Path entry : file) {
+ Files.find(dir.resolve(entry), Integer.MAX_VALUE,
+ (p, attrs) -> attrs.isRegularFile())
+ .map(e -> dir.relativize(e))
+ .forEach(entries::add);
+ }
+
+ Set<String> names = entries.stream()
+ .map(JarUtils::toJarEntryName)
+ .collect(Collectors.toSet());
+
+ Path tmpfile = Files.createTempFile("jar", "jar");
+
+ try (OutputStream out = Files.newOutputStream(tmpfile);
+ JarOutputStream jos = new JarOutputStream(out))
+ {
+ // copy existing entries from the original JAR file
+ try (JarFile jf = new JarFile(jarfile.toString())) {
+ Enumeration<JarEntry> jentries = jf.entries();
+ while (jentries.hasMoreElements()) {
+ JarEntry jentry = jentries.nextElement();
+ if (!names.contains(jentry.getName())) {
+ jos.putNextEntry(jentry);
+ jf.getInputStream(jentry).transferTo(jos);
+ }
+ }
+ }
+
+ // add the new entries
+ for (Path entry : entries) {
+ String name = toJarEntryName(entry);
+ jos.putNextEntry(new JarEntry(name));
+ Files.copy(dir.resolve(entry), jos);
+ }
+ }
+
+ // replace the original JAR file
+ Files.move(tmpfile, jarfile, StandardCopyOption.REPLACE_EXISTING);
+ }
+
+ /**
+ * Update a JAR file.
+ *
+ * Equivalent to {@code jar uf <jarfile> -C <dir> .}
+ */
+ public static void updateJarFile(Path jarfile, Path dir) throws IOException {
+ updateJarFile(jarfile, dir, Paths.get("."));
+ }
+
+
+ /**
+ * Map a file path to the equivalent name in a JAR file
+ */
+ private static String toJarEntryName(Path file) {
+ Path normalized = file.normalize();
+ return normalized.subpath(0, normalized.getNameCount()) // drop root
+ .toString()
+ .replace(File.separatorChar, '/');
+ }
+}