92 lines
2.7 KiB
Java
92 lines
2.7 KiB
Java
// Copyright (C) 2013 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import com.googlecode.prolog_cafe.compiler.Compiler;
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import com.googlecode.prolog_cafe.exceptions.CompileException;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.util.jar.JarEntry;
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import java.util.jar.JarOutputStream;
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public class BuckPrologCompiler {
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private static File tmpdir;
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public static void main(String[] argv) throws IOException, CompileException {
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int i = 0;
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tmpdir = new File(argv[i++]);
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File out = new File(argv[i++]);
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File java = tmpdir("java");
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for (; i < argv.length; i++) {
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new Compiler().prologToJavaSource(argv[i], java.getPath());
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}
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jar(out, java);
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}
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private static File tmpdir(String name) throws IOException {
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File d = File.createTempFile(name + "_", "", tmpdir);
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if (!d.delete() || !d.mkdir()) {
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throw new IOException("Cannot mkdir " + d);
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}
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return d;
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}
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private static void jar(File jar, File classes) throws IOException {
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File tmp = File.createTempFile("prolog", ".jar", tmpdir);
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try {
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JarOutputStream out = new JarOutputStream(new FileOutputStream(tmp));
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try {
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add(out, classes, "");
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} finally {
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out.close();
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}
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if (!tmp.renameTo(jar)) {
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throw new IOException("Cannot create " + jar);
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}
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} finally {
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tmp.delete();
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}
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}
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private static void add(JarOutputStream out, File classes, String prefix)
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throws IOException {
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String[] list = classes.list();
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if (list == null) {
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return;
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}
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for (String name : list) {
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File f = new File(classes, name);
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if (f.isDirectory()) {
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add(out, f, prefix + name + "/");
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continue;
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}
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JarEntry e = new JarEntry(prefix + name);
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try (FileInputStream in = new FileInputStream(f)) {
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e.setTime(f.lastModified());
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out.putNextEntry(e);
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byte[] buf = new byte[16 << 10];
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int n;
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while (0 < (n = in.read(buf))) {
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out.write(buf, 0, n);
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}
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} finally {
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out.closeEntry();
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}
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}
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}
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}
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