1 files changed, 0 insertions, 306 deletions
diff --git a/gerrit-pgm/src/main/java/com/google/gerrit/pgm/rules/PrologCompiler.java b/gerrit-pgm/src/main/java/com/google/gerrit/pgm/rules/PrologCompiler.java
deleted file mode 100644
index 4ad770189c..0000000000
--- a/gerrit-pgm/src/main/java/com/google/gerrit/pgm/rules/PrologCompiler.java
+++ /dev/null
@@ -1,306 +0,0 @@
-// Copyright (C) 2011 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 com.google.gerrit.pgm.rules;
-
-import com.google.gerrit.common.TimeUtil;
-import com.google.gerrit.common.Version;
-import com.google.gerrit.reviewdb.client.RefNames;
-import com.google.gerrit.server.config.GerritServerConfig;
-import com.google.gerrit.server.config.SitePaths;
-import com.google.inject.Inject;
-import com.google.inject.assistedinject.Assisted;
-import com.googlecode.prolog_cafe.compiler.Compiler;
-import com.googlecode.prolog_cafe.exceptions.CompileException;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.net.URL;
-import java.net.URLClassLoader;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-import java.util.concurrent.Callable;
-import java.util.jar.Attributes;
-import java.util.jar.JarEntry;
-import java.util.jar.JarOutputStream;
-import java.util.jar.Manifest;
-import javax.tools.Diagnostic;
-import javax.tools.DiagnosticCollector;
-import javax.tools.JavaCompiler;
-import javax.tools.JavaFileObject;
-import javax.tools.StandardJavaFileManager;
-import javax.tools.ToolProvider;
-import org.eclipse.jgit.errors.MissingObjectException;
-import org.eclipse.jgit.lib.Config;
-import org.eclipse.jgit.lib.ObjectId;
-import org.eclipse.jgit.lib.Repository;
-
-/**
- * Helper class for Rulec: does the actual prolog -> java src -> class -> jar work Finds rules.pl in
- * refs/meta/config branch Creates rules-(sha1 of rules.pl).jar in (site-path)/cache/rules
- */
-public class PrologCompiler implements Callable<PrologCompiler.Status> {
-  public interface Factory {
-    PrologCompiler create(Repository git);
-  }
-
-  public enum Status {
-    NO_RULES,
-    COMPILED
-  }
-
-  private final Path ruleDir;
-  private final Repository git;
-
-  @Inject
-  PrologCompiler(
-      @GerritServerConfig Config config, SitePaths site, @Assisted Repository gitRepository) {
-    Path cacheDir = site.resolve(config.getString("cache", null, "directory"));
-    ruleDir = cacheDir != null ? cacheDir.resolve("rules") : null;
-    git = gitRepository;
-  }
-
-  @Override
-  public Status call() throws IOException, CompileException {
-    ObjectId metaConfig = git.resolve(RefNames.REFS_CONFIG);
-    if (metaConfig == null) {
-      return Status.NO_RULES;
-    }
-
-    ObjectId rulesId = git.resolve(metaConfig.name() + ":rules.pl");
-    if (rulesId == null) {
-      return Status.NO_RULES;
-    }
-
-    if (ruleDir == null) {
-      throw new CompileException("Caching not enabled");
-    }
-    Files.createDirectories(ruleDir);
-
-    File tempDir = File.createTempFile("GerritCodeReview_", ".rulec");
-    if (!tempDir.delete() || !tempDir.mkdir()) {
-      throw new IOException("Cannot create " + tempDir);
-    }
-    try {
-      // Try to make the directory accessible only by this process.
-      // This may help to prevent leaking rule data to outsiders.
-      tempDir.setReadable(true, true);
-      tempDir.setWritable(true, true);
-      tempDir.setExecutable(true, true);
-
-      compileProlog(rulesId, tempDir);
-      compileJava(tempDir);
-
-      Path jarPath = ruleDir.resolve("rules-" + rulesId.getName() + ".jar");
-      List<String> classFiles = getRelativePaths(tempDir, ".class");
-      createJar(jarPath, classFiles, tempDir, metaConfig, rulesId);
-
-      return Status.COMPILED;
-    } finally {
-      deleteAllFiles(tempDir);
-    }
-  }
-
-  /** Creates a copy of rules.pl and compiles it into Java sources. */
-  private void compileProlog(ObjectId prolog, File tempDir) throws IOException, CompileException {
-    File tempRules = copyToTempFile(prolog, tempDir);
-    try {
-      Compiler comp = new Compiler();
-      comp.prologToJavaSource(tempRules.getPath(), tempDir.getPath());
-    } finally {
-      tempRules.delete();
-    }
-  }
-
-  private File copyToTempFile(ObjectId blobId, File tempDir)
-      throws IOException, FileNotFoundException, MissingObjectException {
-    // Any leak of tmp caused by this method failing will be cleaned
-    // up by our caller when tempDir is recursively deleted.
-    File tmp = File.createTempFile("rules", ".pl", tempDir);
-    try (OutputStream out = Files.newOutputStream(tmp.toPath())) {
-      git.open(blobId).copyTo(out);
-    }
-    return tmp;
-  }
-
-  /** Compile java src into java .class files */
-  private void compileJava(File tempDir) throws IOException, CompileException {
-    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
-    if (compiler == null) {
-      throw new CompileException("JDK required (running inside of JRE)");
-    }
-
-    DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<>();
-    try (StandardJavaFileManager fileManager =
-        compiler.getStandardFileManager(diagnostics, null, null)) {
-      Iterable<? extends JavaFileObject> compilationUnits =
-          fileManager.getJavaFileObjectsFromFiles(getAllFiles(tempDir, ".java"));
-      ArrayList<String> options = new ArrayList<>();
-      String classpath = getMyClasspath();
-      if (classpath != null) {
-        options.add("-classpath");
-        options.add(classpath);
-      }
-      options.add("-d");
-      options.add(tempDir.getPath());
-      JavaCompiler.CompilationTask task =
-          compiler.getTask(null, fileManager, diagnostics, options, null, compilationUnits);
-      if (!task.call()) {
-        Locale myLocale = Locale.getDefault();
-        StringBuilder msg = new StringBuilder();
-        msg.append("Cannot compile to Java bytecode:");
-        for (Diagnostic<? extends JavaFileObject> err : diagnostics.getDiagnostics()) {
-          msg.append('\n');
-          msg.append(err.getKind());
-          msg.append(": ");
-          if (err.getSource() != null) {
-            msg.append(err.getSource().getName());
-          }
-          msg.append(':');
-          msg.append(err.getLineNumber());
-          msg.append(": ");
-          msg.append(err.getMessage(myLocale));
-        }
-        throw new CompileException(msg.toString());
-      }
-    }
-  }
-
-  private String getMyClasspath() {
-    StringBuilder cp = new StringBuilder();
-    appendClasspath(cp, getClass().getClassLoader());
-    return 0 < cp.length() ? cp.toString() : null;
-  }
-
-  private void appendClasspath(StringBuilder cp, ClassLoader classLoader) {
-    if (classLoader.getParent() != null) {
-      appendClasspath(cp, classLoader.getParent());
-    }
-    if (classLoader instanceof URLClassLoader) {
-      for (URL url : ((URLClassLoader) classLoader).getURLs()) {
-        if ("file".equals(url.getProtocol())) {
-          if (0 < cp.length()) {
-            cp.append(File.pathSeparatorChar);
-          }
-          cp.append(url.getPath());
-        }
-      }
-    }
-  }
-
-  /** Takes compiled prolog .class files, puts them into the jar file. */
-  private void createJar(
-      Path archiveFile, List<String> toBeJared, File tempDir, ObjectId metaConfig, ObjectId rulesId)
-      throws IOException {
-    long now = TimeUtil.nowMs();
-    Manifest mf = new Manifest();
-    mf.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
-    mf.getMainAttributes().putValue("Built-by", "Gerrit Code Review " + Version.getVersion());
-    if (git.getDirectory() != null) {
-      mf.getMainAttributes().putValue("Source-Repository", git.getDirectory().getPath());
-    }
-    mf.getMainAttributes().putValue("Source-Commit", metaConfig.name());
-    mf.getMainAttributes().putValue("Source-Blob", rulesId.name());
-
-    Path tmpjar = Files.createTempFile(archiveFile.getParent(), ".rulec_", ".jar");
-    try (OutputStream stream = Files.newOutputStream(tmpjar);
-        JarOutputStream out = new JarOutputStream(stream, mf)) {
-      byte[] buffer = new byte[10240];
-      // TODO: fixify this loop
-      for (String path : toBeJared) {
-        JarEntry jarAdd = new JarEntry(path);
-        File f = new File(tempDir, path);
-        jarAdd.setTime(now);
-        out.putNextEntry(jarAdd);
-        if (f.isFile()) {
-          try (InputStream in = Files.newInputStream(f.toPath())) {
-            while (true) {
-              int nRead = in.read(buffer, 0, buffer.length);
-              if (nRead <= 0) {
-                break;
-              }
-              out.write(buffer, 0, nRead);
-            }
-          }
-        }
-        out.closeEntry();
-      }
-    }
-
-    try {
-      Files.move(tmpjar, archiveFile);
-    } catch (IOException e) {
-      throw new IOException("Cannot replace " + archiveFile, e);
-    }
-  }
-
-  private List<File> getAllFiles(File dir, String extension) throws IOException {
-    ArrayList<File> fileList = new ArrayList<>();
-    getAllFiles(dir, extension, fileList);
-    return fileList;
-  }
-
-  private void getAllFiles(File dir, String extension, List<File> fileList) throws IOException {
-    for (File f : listFiles(dir)) {
-      if (f.getName().endsWith(extension)) {
-        fileList.add(f);
-      }
-      if (f.isDirectory()) {
-        getAllFiles(f, extension, fileList);
-      }
-    }
-  }
-
-  private List<String> getRelativePaths(File dir, String extension) throws IOException {
-    ArrayList<String> pathList = new ArrayList<>();
-    getRelativePaths(dir, extension, "", pathList);
-    return pathList;
-  }
-
-  private static void getRelativePaths(
-      File dir, String extension, String path, List<String> pathList) throws IOException {
-    for (File f : listFiles(dir)) {
-      if (f.getName().endsWith(extension)) {
-        pathList.add(path + f.getName());
-      }
-      if (f.isDirectory()) {
-        getRelativePaths(f, extension, path + f.getName() + "/", pathList);
-      }
-    }
-  }
-
-  private static void deleteAllFiles(File dir) throws IOException {
-    for (File f : listFiles(dir)) {
-      if (f.isDirectory()) {
-        deleteAllFiles(f);
-      } else {
-        f.delete();
-      }
-    }
-    dir.delete();
-  }
-
-  private static File[] listFiles(File dir) throws IOException {
-    File[] files = dir.listFiles();
-    if (files == null) {
-      throw new IOException("Failed to list directory: " + dir);
-    }
-    return files;
-  }
-}