| // 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.httpd.rpc.project; |
| |
| import com.google.gerrit.common.data.ListBranchesResult; |
| import com.google.gerrit.httpd.rpc.Handler; |
| import com.google.gerrit.reviewdb.client.Branch; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.reviewdb.client.RevId; |
| import com.google.gerrit.server.git.GitRepositoryManager; |
| import com.google.gerrit.server.project.NoSuchProjectException; |
| import com.google.gerrit.server.project.ProjectControl; |
| import com.google.gerrit.server.project.RefControl; |
| import com.google.inject.Inject; |
| import com.google.inject.assistedinject.Assisted; |
| |
| import org.eclipse.jgit.errors.RepositoryNotFoundException; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.Ref; |
| import org.eclipse.jgit.lib.Repository; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| class ListBranches extends Handler<ListBranchesResult> { |
| interface Factory { |
| ListBranches create(@Assisted Project.NameKey name); |
| } |
| |
| private final ProjectControl.Factory projectControlFactory; |
| private final GitRepositoryManager repoManager; |
| |
| private final Project.NameKey projectName; |
| |
| @Inject |
| ListBranches(final ProjectControl.Factory projectControlFactory, |
| final GitRepositoryManager repoManager, |
| |
| @Assisted final Project.NameKey name) { |
| this.projectControlFactory = projectControlFactory; |
| this.repoManager = repoManager; |
| |
| this.projectName = name; |
| } |
| |
| @Override |
| public ListBranchesResult call() throws NoSuchProjectException, IOException { |
| final ProjectControl pctl = projectControlFactory.validateFor( // |
| projectName, // |
| ProjectControl.OWNER | ProjectControl.VISIBLE); |
| |
| final List<Branch> branches = new ArrayList<Branch>(); |
| Branch headBranch = null; |
| Branch configBranch = null; |
| final Set<String> targets = new HashSet<String>(); |
| |
| final Repository db; |
| try { |
| db = repoManager.openRepository(projectName); |
| } catch (RepositoryNotFoundException noGitRepository) { |
| return new ListBranchesResult(branches, false, true); |
| } |
| try { |
| final Map<String, Ref> all = db.getAllRefs(); |
| |
| if (!all.containsKey(Constants.HEAD)) { |
| // The branch pointed to by HEAD doesn't exist yet, so getAllRefs |
| // filtered it out. If we ask for it individually we can find the |
| // underlying target and put it into the map anyway. |
| // |
| try { |
| Ref head = db.getRef(Constants.HEAD); |
| if (head != null) { |
| all.put(Constants.HEAD, head); |
| } |
| } catch (IOException e) { |
| // Ignore the failure reading HEAD. |
| } |
| } |
| |
| for (final Ref ref : all.values()) { |
| if (ref.isSymbolic()) { |
| targets.add(ref.getTarget().getName()); |
| } |
| } |
| |
| for (final Ref ref : all.values()) { |
| if (ref.isSymbolic()) { |
| // A symbolic reference to another branch, instead of |
| // showing the resolved value, show the name it references. |
| // |
| String target = ref.getTarget().getName(); |
| RefControl targetRefControl = pctl.controlForRef(target); |
| if (!targetRefControl.isVisible()) { |
| continue; |
| } |
| if (target.startsWith(Constants.R_HEADS)) { |
| target = target.substring(Constants.R_HEADS.length()); |
| } |
| |
| Branch b = createBranch(ref.getName()); |
| b.setRevision(new RevId(target)); |
| |
| if (Constants.HEAD.equals(ref.getName())) { |
| b.setCanDelete(false); |
| headBranch = b; |
| } else { |
| b.setCanDelete(targetRefControl.canDelete()); |
| branches.add(b); |
| } |
| continue; |
| } |
| |
| final RefControl refControl = pctl.controlForRef(ref.getName()); |
| if (refControl.isVisible()) { |
| if (ref.getName().startsWith(Constants.R_HEADS)) { |
| branches.add(createBranch(ref, refControl, targets)); |
| } else if (GitRepositoryManager.REF_CONFIG.equals(ref.getName())) { |
| configBranch = createBranch(ref, refControl, targets); |
| } |
| } |
| } |
| } finally { |
| db.close(); |
| } |
| Collections.sort(branches, new Comparator<Branch>() { |
| @Override |
| public int compare(final Branch a, final Branch b) { |
| return a.getName().compareTo(b.getName()); |
| } |
| }); |
| if (configBranch != null) { |
| branches.add(0, configBranch); |
| } |
| if (headBranch != null) { |
| branches.add(0, headBranch); |
| } |
| return new ListBranchesResult(branches, pctl.canAddRefs(), false); |
| } |
| |
| private Branch createBranch(final Ref ref, final RefControl refControl, |
| final Set<String> targets) { |
| final Branch b = createBranch(ref.getName()); |
| if (ref.getObjectId() != null) { |
| b.setRevision(new RevId(ref.getObjectId().name())); |
| } |
| b.setCanDelete(!targets.contains(ref.getName()) && refControl.canDelete()); |
| return b; |
| } |
| |
| private Branch createBranch(final String name) { |
| return new Branch(new Branch.NameKey(projectName, name)); |
| } |
| } |