1 files changed, 0 insertions, 153 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/GetPureRevert.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/GetPureRevert.java
deleted file mode 100644
index 9270463d68..0000000000
--- a/gerrit-server/src/main/java/com/google/gerrit/server/change/GetPureRevert.java
+++ /dev/null
@@ -1,153 +0,0 @@
-// Copyright (C) 2017 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.change;
-
-import com.google.gerrit.common.Nullable;
-import com.google.gerrit.extensions.common.PureRevertInfo;
-import com.google.gerrit.extensions.restapi.AuthException;
-import com.google.gerrit.extensions.restapi.BadRequestException;
-import com.google.gerrit.extensions.restapi.ResourceConflictException;
-import com.google.gerrit.extensions.restapi.RestReadView;
-import com.google.gerrit.reviewdb.client.PatchSet;
-import com.google.gerrit.reviewdb.server.ReviewDb;
-import com.google.gerrit.server.PatchSetUtil;
-import com.google.gerrit.server.git.GitRepositoryManager;
-import com.google.gerrit.server.git.MergeUtil;
-import com.google.gerrit.server.notedb.ChangeNotes;
-import com.google.gerrit.server.project.ProjectCache;
-import com.google.gwtorm.server.OrmException;
-import com.google.inject.Inject;
-import com.google.inject.Provider;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.util.List;
-import org.eclipse.jgit.diff.DiffEntry;
-import org.eclipse.jgit.diff.DiffFormatter;
-import org.eclipse.jgit.errors.InvalidObjectIdException;
-import org.eclipse.jgit.errors.MissingObjectException;
-import org.eclipse.jgit.lib.ObjectId;
-import org.eclipse.jgit.lib.ObjectInserter;
-import org.eclipse.jgit.lib.Repository;
-import org.eclipse.jgit.merge.ThreeWayMerger;
-import org.eclipse.jgit.revwalk.RevCommit;
-import org.eclipse.jgit.revwalk.RevWalk;
-import org.kohsuke.args4j.Option;
-
-public class GetPureRevert implements RestReadView<ChangeResource> {
-  private final MergeUtil.Factory mergeUtilFactory;
-  private final GitRepositoryManager repoManager;
-  private final ProjectCache projectCache;
-  private final ChangeNotes.Factory notesFactory;
-  private final Provider<ReviewDb> dbProvider;
-  private final PatchSetUtil psUtil;
-
-  @Option(
-      name = "--claimed-original",
-      aliases = {"-o"},
-      usage = "SHA1 (40 digit hex) of the original commit")
-  @Nullable
-  private String claimedOriginal;
-
-  @Inject
-  GetPureRevert(
-      MergeUtil.Factory mergeUtilFactory,
-      GitRepositoryManager repoManager,
-      ProjectCache projectCache,
-      ChangeNotes.Factory notesFactory,
-      Provider<ReviewDb> dbProvider,
-      PatchSetUtil psUtil) {
-    this.mergeUtilFactory = mergeUtilFactory;
-    this.repoManager = repoManager;
-    this.projectCache = projectCache;
-    this.notesFactory = notesFactory;
-    this.dbProvider = dbProvider;
-    this.psUtil = psUtil;
-  }
-
-  @Override
-  public PureRevertInfo apply(ChangeResource rsrc)
-      throws ResourceConflictException, IOException, BadRequestException, OrmException,
-          AuthException {
-    PatchSet currentPatchSet = psUtil.current(dbProvider.get(), rsrc.getNotes());
-    if (currentPatchSet == null) {
-      throw new ResourceConflictException("current revision is missing");
-    }
-    return getPureRevert(rsrc.getNotes());
-  }
-
-  public PureRevertInfo getPureRevert(ChangeNotes notes)
-      throws OrmException, IOException, BadRequestException, ResourceConflictException {
-    PatchSet currentPatchSet = psUtil.current(dbProvider.get(), notes);
-    if (currentPatchSet == null) {
-      throw new ResourceConflictException("current revision is missing");
-    }
-
-    if (claimedOriginal == null) {
-      if (notes.getChange().getRevertOf() == null) {
-        throw new BadRequestException("no ID was provided and change isn't a revert");
-      }
-      PatchSet ps =
-          psUtil.current(
-              dbProvider.get(),
-              notesFactory.createChecked(
-                  dbProvider.get(), notes.getProjectName(), notes.getChange().getRevertOf()));
-      claimedOriginal = ps.getRevision().get();
-    }
-
-    try (Repository repo = repoManager.openRepository(notes.getProjectName());
-        ObjectInserter oi = repo.newObjectInserter();
-        RevWalk rw = new RevWalk(repo)) {
-      RevCommit claimedOriginalCommit;
-      try {
-        claimedOriginalCommit = rw.parseCommit(ObjectId.fromString(claimedOriginal));
-      } catch (InvalidObjectIdException | MissingObjectException e) {
-        throw new BadRequestException("invalid object ID");
-      }
-      if (claimedOriginalCommit.getParentCount() == 0) {
-        throw new BadRequestException("can't check against initial commit");
-      }
-      RevCommit claimedRevertCommit =
-          rw.parseCommit(ObjectId.fromString(currentPatchSet.getRevision().get()));
-      if (claimedRevertCommit.getParentCount() == 0) {
-        throw new BadRequestException("claimed revert has no parents");
-      }
-      // Rebase claimed revert onto claimed original
-      ThreeWayMerger merger =
-          mergeUtilFactory
-              .create(projectCache.checkedGet(notes.getProjectName()))
-              .newThreeWayMerger(oi, repo.getConfig());
-      merger.setBase(claimedRevertCommit.getParent(0));
-      boolean success = merger.merge(claimedRevertCommit, claimedOriginalCommit);
-      if (!success || merger.getResultTreeId() == null) {
-        // Merge conflict during rebase
-        return new PureRevertInfo(false);
-      }
-
-      // Any differences between claimed original's parent and the rebase result indicate that the
-      // claimedRevert is not a pure revert but made content changes
-      try (DiffFormatter df = new DiffFormatter(new ByteArrayOutputStream())) {
-        df.setRepository(repo);
-        List<DiffEntry> entries =
-            df.scan(claimedOriginalCommit.getParent(0), merger.getResultTreeId());
-        return new PureRevertInfo(entries.isEmpty());
-      }
-    }
-  }
-
-  public GetPureRevert setClaimedOriginal(String claimedOriginal) {
-    this.claimedOriginal = claimedOriginal;
-    return this;
-  }
-}