1 files changed, 0 insertions, 200 deletions
diff --git a/src/main/java/com/google/gerrit/server/patch/PatchListCacheImpl.java b/src/main/java/com/google/gerrit/server/patch/PatchListCacheImpl.java
deleted file mode 100644
index bf55c15688..0000000000
--- a/src/main/java/com/google/gerrit/server/patch/PatchListCacheImpl.java
+++ /dev/null
@@ -1,200 +0,0 @@
-// Copyright (C) 2009 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.server.patch;
-
-import static com.google.gerrit.client.data.PatchScriptSettings.Whitespace.IGNORE_NONE;
-
-import com.google.gerrit.client.data.PatchScriptSettings.Whitespace;
-import com.google.gerrit.client.reviewdb.Change;
-import com.google.gerrit.client.reviewdb.PatchSet;
-import com.google.gerrit.client.reviewdb.Project;
-import com.google.gerrit.git.GitRepositoryManager;
-import com.google.gerrit.server.cache.Cache;
-import com.google.gerrit.server.cache.CacheModule;
-import com.google.gerrit.server.cache.EvictionPolicy;
-import com.google.gerrit.server.cache.SelfPopulatingCache;
-import com.google.inject.Inject;
-import com.google.inject.Module;
-import com.google.inject.Singleton;
-import com.google.inject.TypeLiteral;
-import com.google.inject.name.Named;
-
-import org.eclipse.jgit.errors.IncorrectObjectTypeException;
-import org.eclipse.jgit.errors.MissingObjectException;
-import org.eclipse.jgit.lib.AnyObjectId;
-import org.eclipse.jgit.lib.ObjectId;
-import org.eclipse.jgit.lib.ObjectWriter;
-import org.eclipse.jgit.lib.Repository;
-import org.eclipse.jgit.revwalk.RevCommit;
-import org.eclipse.jgit.revwalk.RevWalk;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.List;
-
-/** Provides a cached list of {@link PatchListEntry}. */
-@Singleton
-public class PatchListCacheImpl implements PatchListCache {
-  private static final String CACHE_NAME = "diff";
-
-  public static Module module() {
-    return new CacheModule() {
-      @Override
-      protected void configure() {
-        final TypeLiteral<Cache<PatchListKey, PatchList>> type =
-            new TypeLiteral<Cache<PatchListKey, PatchList>>() {};
-        disk(type, CACHE_NAME) //
-            .memoryLimit(128) // very large items, cache only a few
-            .evictionPolicy(EvictionPolicy.LRU) // prefer most recent
-        ;
-        bind(PatchListCacheImpl.class);
-        bind(PatchListCache.class).to(PatchListCacheImpl.class);
-      }
-    };
-  }
-
-  private final GitRepositoryManager repoManager;
-  private final SelfPopulatingCache<PatchListKey, PatchList> self;
-
-  @Inject
-  PatchListCacheImpl(final GitRepositoryManager grm,
-      @Named(CACHE_NAME) final Cache<PatchListKey, PatchList> raw) {
-    repoManager = grm;
-    self = new SelfPopulatingCache<PatchListKey, PatchList>(raw) {
-      @Override
-      protected PatchList createEntry(final PatchListKey key) throws Exception {
-        return compute(key);
-      }
-    };
-  }
-
-  public PatchList get(final PatchListKey key) {
-    return self.get(key);
-  }
-
-  public PatchList get(final Change change, final PatchSet patchSet) {
-    return get(change, patchSet, IGNORE_NONE);
-  }
-
-  public PatchList get(final Change change, final PatchSet patchSet,
-      final Whitespace whitespace) {
-    final Project.NameKey projectKey = change.getProject();
-    final ObjectId a = null;
-    final ObjectId b = ObjectId.fromString(patchSet.getRevision().get());
-    return get(new PatchListKey(projectKey, a, b, whitespace));
-  }
-
-  private PatchList compute(final PatchListKey key)
-      throws MissingObjectException, IncorrectObjectTypeException, IOException {
-    final Repository repo = repoManager.openRepository(key.projectKey.get());
-    try {
-      return readPatchList(key, repo);
-    } finally {
-      repo.close();
-    }
-  }
-
-  private PatchList readPatchList(final PatchListKey key, final Repository repo)
-      throws IOException {
-    final RevCommit b = new RevWalk(repo).parseCommit(key.getNewId());
-    final AnyObjectId a = aFor(key, repo, b);
-
-    final List<String> args = new ArrayList<String>();
-    args.add("git");
-    args.add("--git-dir=.");
-    args.add("diff-tree");
-    args.add("-M");
-    switch (key.getWhitespace()) {
-      case IGNORE_NONE:
-        break;
-      case IGNORE_SPACE_AT_EOL:
-        args.add("--ignore-space-at-eol");
-        break;
-      case IGNORE_SPACE_CHANGE:
-        args.add("--ignore-space-change");
-        break;
-      case IGNORE_ALL_SPACE:
-        args.add("--ignore-all-space");
-        break;
-      default:
-        throw new IOException("Unsupported whitespace " + key.getWhitespace());
-    }
-    if (a == null /* want combined diff */) {
-      args.add("--cc");
-      args.add(b.name());
-    } else {
-      args.add("--unified=1");
-      args.add(a.name());
-      args.add(b.name());
-    }
-
-    final org.eclipse.jgit.patch.Patch p = new org.eclipse.jgit.patch.Patch();
-    final Process diffProcess = exec(repo, args);
-    try {
-      diffProcess.getOutputStream().close();
-      diffProcess.getErrorStream().close();
-
-      final InputStream in = diffProcess.getInputStream();
-      try {
-        p.parse(in);
-      } finally {
-        in.close();
-      }
-    } finally {
-      try {
-        final int rc = diffProcess.waitFor();
-        if (rc != 0) {
-          throw new IOException("git diff-tree exited abnormally: " + rc);
-        }
-      } catch (InterruptedException ie) {
-      }
-    }
-
-    final int cnt = p.getFiles().size();
-    final PatchListEntry[] entries = new PatchListEntry[cnt];
-    for (int i = 0; i < cnt; i++) {
-      entries[i] = new PatchListEntry(p.getFiles().get(i));
-    }
-    return new PatchList(a, b, entries);
-  }
-
-  private static AnyObjectId aFor(final PatchListKey key,
-      final Repository repo, final RevCommit b) throws IOException {
-    if (key.getOldId() != null) {
-      return key.getOldId();
-    }
-
-    switch (b.getParentCount()) {
-      case 0:
-        return emptyTree(repo);
-      case 1:
-        return b.getParent(0);
-      default:
-        // merge commit, return null to force combined diff behavior
-        return null;
-    }
-  }
-
-  private static Process exec(final Repository repo, final List<String> args)
-      throws IOException {
-    final String[] argv = args.toArray(new String[args.size()]);
-    return Runtime.getRuntime().exec(argv, null, repo.getDirectory());
-  }
-
-  private static ObjectId emptyTree(final Repository repo) throws IOException {
-    return new ObjectWriter(repo).writeCanonicalTree(new byte[0]);
-  }
-}