1 files changed, 0 insertions, 205 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/RebaseUtil.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/RebaseUtil.java
deleted file mode 100644
index acb2c4341f..0000000000
--- a/gerrit-server/src/main/java/com/google/gerrit/server/change/RebaseUtil.java
+++ /dev/null
@@ -1,205 +0,0 @@
-// Copyright (C) 2015 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.auto.value.AutoValue;
-import com.google.common.primitives.Ints;
-import com.google.gerrit.extensions.restapi.ResourceConflictException;
-import com.google.gerrit.extensions.restapi.RestApiException;
-import com.google.gerrit.extensions.restapi.UnprocessableEntityException;
-import com.google.gerrit.reviewdb.client.Branch;
-import com.google.gerrit.reviewdb.client.Change;
-import com.google.gerrit.reviewdb.client.Change.Status;
-import com.google.gerrit.reviewdb.client.PatchSet;
-import com.google.gerrit.reviewdb.client.RevId;
-import com.google.gerrit.reviewdb.server.ReviewDb;
-import com.google.gerrit.server.PatchSetUtil;
-import com.google.gerrit.server.notedb.ChangeNotes;
-import com.google.gerrit.server.query.change.ChangeData;
-import com.google.gerrit.server.query.change.InternalChangeQuery;
-import com.google.gwtorm.server.OrmException;
-import com.google.inject.Inject;
-import com.google.inject.Provider;
-import java.io.IOException;
-import org.eclipse.jgit.lib.ObjectId;
-import org.eclipse.jgit.lib.Ref;
-import org.eclipse.jgit.lib.Repository;
-import org.eclipse.jgit.revwalk.RevCommit;
-import org.eclipse.jgit.revwalk.RevWalk;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/** Utility methods related to rebasing changes. */
-public class RebaseUtil {
-  private static final Logger log = LoggerFactory.getLogger(RebaseUtil.class);
-
-  private final Provider<InternalChangeQuery> queryProvider;
-  private final ChangeNotes.Factory notesFactory;
-  private final Provider<ReviewDb> dbProvider;
-  private final PatchSetUtil psUtil;
-
-  @Inject
-  RebaseUtil(
-      Provider<InternalChangeQuery> queryProvider,
-      ChangeNotes.Factory notesFactory,
-      Provider<ReviewDb> dbProvider,
-      PatchSetUtil psUtil) {
-    this.queryProvider = queryProvider;
-    this.notesFactory = notesFactory;
-    this.dbProvider = dbProvider;
-    this.psUtil = psUtil;
-  }
-
-  public boolean canRebase(PatchSet patchSet, Branch.NameKey dest, Repository git, RevWalk rw) {
-    try {
-      findBaseRevision(patchSet, dest, git, rw);
-      return true;
-    } catch (RestApiException e) {
-      return false;
-    } catch (OrmException | IOException e) {
-      log.warn("Error checking if patch set {} on {} can be rebased", patchSet.getId(), dest, e);
-      return false;
-    }
-  }
-
-  @AutoValue
-  abstract static class Base {
-    private static Base create(ChangeNotes notes, PatchSet ps) {
-      if (notes == null) {
-        return null;
-      }
-      return new AutoValue_RebaseUtil_Base(notes, ps);
-    }
-
-    abstract ChangeNotes notes();
-
-    abstract PatchSet patchSet();
-  }
-
-  Base parseBase(RevisionResource rsrc, String base) throws OrmException {
-    ReviewDb db = dbProvider.get();
-
-    // Try parsing the base as a ref string.
-    PatchSet.Id basePatchSetId = PatchSet.Id.fromRef(base);
-    if (basePatchSetId != null) {
-      Change.Id baseChangeId = basePatchSetId.getParentKey();
-      ChangeNotes baseNotes = notesFor(rsrc, baseChangeId);
-      if (baseNotes != null) {
-        return Base.create(
-            notesFor(rsrc, basePatchSetId.getParentKey()),
-            psUtil.get(db, baseNotes, basePatchSetId));
-      }
-    }
-
-    // Try parsing base as a change number (assume current patch set).
-    Integer baseChangeId = Ints.tryParse(base);
-    if (baseChangeId != null) {
-      ChangeNotes baseNotes = notesFor(rsrc, new Change.Id(baseChangeId));
-      if (baseNotes != null) {
-        return Base.create(baseNotes, psUtil.current(db, baseNotes));
-      }
-    }
-
-    // Try parsing as SHA-1.
-    Base ret = null;
-    for (ChangeData cd : queryProvider.get().byProjectCommit(rsrc.getProject(), base)) {
-      for (PatchSet ps : cd.patchSets()) {
-        if (!ps.getRevision().matches(base)) {
-          continue;
-        }
-        if (ret == null || ret.patchSet().getId().get() < ps.getId().get()) {
-          ret = Base.create(cd.notes(), ps);
-        }
-      }
-    }
-    return ret;
-  }
-
-  private ChangeNotes notesFor(RevisionResource rsrc, Change.Id id) throws OrmException {
-    if (rsrc.getChange().getId().equals(id)) {
-      return rsrc.getNotes();
-    }
-    return notesFactory.createChecked(dbProvider.get(), rsrc.getProject(), id);
-  }
-
-  /**
-   * Find the commit onto which a patch set should be rebased.
-   *
-   * <p>This is defined as the latest patch set of the change corresponding to this commit's parent,
-   * or the destination branch tip in the case where the parent's change is merged.
-   *
-   * @param patchSet patch set for which the new base commit should be found.
-   * @param destBranch the destination branch.
-   * @param git the repository.
-   * @param rw the RevWalk.
-   * @return the commit onto which the patch set should be rebased.
-   * @throws RestApiException if rebase is not possible.
-   * @throws IOException if accessing the repository fails.
-   * @throws OrmException if accessing the database fails.
-   */
-  ObjectId findBaseRevision(
-      PatchSet patchSet, Branch.NameKey destBranch, Repository git, RevWalk rw)
-      throws RestApiException, IOException, OrmException {
-    String baseRev = null;
-    RevCommit commit = rw.parseCommit(ObjectId.fromString(patchSet.getRevision().get()));
-
-    if (commit.getParentCount() > 1) {
-      throw new UnprocessableEntityException("Cannot rebase a change with multiple parents.");
-    } else if (commit.getParentCount() == 0) {
-      throw new UnprocessableEntityException(
-          "Cannot rebase a change without any parents (is this the initial commit?).");
-    }
-
-    RevId parentRev = new RevId(commit.getParent(0).name());
-
-    CHANGES:
-    for (ChangeData cd : queryProvider.get().byBranchCommit(destBranch, parentRev.get())) {
-      for (PatchSet depPatchSet : cd.patchSets()) {
-        if (!depPatchSet.getRevision().equals(parentRev)) {
-          continue;
-        }
-        Change depChange = cd.change();
-        if (depChange.getStatus() == Status.ABANDONED) {
-          throw new ResourceConflictException(
-              "Cannot rebase a change with an abandoned parent: " + depChange.getKey());
-        }
-
-        if (depChange.getStatus().isOpen()) {
-          if (depPatchSet.getId().equals(depChange.currentPatchSetId())) {
-            throw new ResourceConflictException(
-                "Change is already based on the latest patch set of the dependent change.");
-          }
-          baseRev = cd.currentPatchSet().getRevision().get();
-        }
-        break CHANGES;
-      }
-    }
-
-    if (baseRev == null) {
-      // We are dependent on a merged PatchSet or have no PatchSet
-      // dependencies at all.
-      Ref destRef = git.getRefDatabase().exactRef(destBranch.get());
-      if (destRef == null) {
-        throw new UnprocessableEntityException(
-            "The destination branch does not exist: " + destBranch.get());
-      }
-      baseRev = destRef.getObjectId().getName();
-      if (baseRev.equals(parentRev.get())) {
-        throw new ResourceConflictException("Change is already up to date.");
-      }
-    }
-    return ObjectId.fromString(baseRev);
-  }
-}