| // Copyright (C) 2017 Google Inc |
| // |
| // 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.googlesource.gerrit.plugins.supermanifest; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.Queue; |
| import javax.xml.bind.JAXBContext; |
| import javax.xml.bind.JAXBException; |
| import javax.xml.stream.XMLInputFactory; |
| import javax.xml.stream.XMLStreamException; |
| import javax.xml.stream.XMLStreamReader; |
| import javax.xml.transform.stream.StreamSource; |
| import org.eclipse.jgit.lib.Repository; |
| |
| class JiriManifestParser { |
| public static JiriProjects getProjects(Repository repo, String ref, String manifest) |
| throws Exception { |
| Queue<String> q = new LinkedList<>(); |
| q.add(manifest); |
| HashSet<String> processedFiles = new HashSet<>(); |
| HashMap<String, JiriProjects.Project> projectMap = new HashMap<>(); |
| |
| while (q.size() != 0) { |
| String file = q.remove(); |
| if (processedFiles.contains(file)) { |
| continue; |
| } |
| processedFiles.add(file); |
| JiriManifest m = parseManifest(repo, ref, file); |
| if (m.imports.getImports().length != 0) { |
| throw new Exception( |
| String.format("Manifest %s contains remote imports which are not supported", file)); |
| } |
| |
| for (JiriProjects.Project project : m.projects.getProjects()) { |
| project.fillDefault(); |
| if (projectMap.containsKey(project.Key())) { |
| if (!projectMap.get(project.Key()).equals(project)) |
| throw new Exception( |
| String.format( |
| "Duplicate conflicting project %s in manifest %s\n%s\n%s", |
| project.Key(), |
| file, |
| project.toString(), |
| projectMap.get(project.Key()).toString())); |
| } else { |
| projectMap.put(project.Key(), project); |
| } |
| } |
| |
| URI parentURI = new URI(file); |
| for (JiriManifest.LocalImport l : m.imports.getLocalImports()) { |
| q.add(parentURI.resolve(l.getFile()).getPath()); |
| } |
| } |
| return new JiriProjects(projectMap.values().toArray(new JiriProjects.Project[0])); |
| } |
| |
| private static JiriManifest parseManifest(Repository repo, String ref, String file) |
| throws JAXBException, IOException, XMLStreamException { |
| byte[] b = Utils.readBlob(repo, ref + ":" + file); |
| JAXBContext jc = JAXBContext.newInstance(JiriManifest.class); |
| |
| XMLInputFactory inf = XMLInputFactory.newFactory(); |
| inf.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, false); |
| inf.setProperty(XMLInputFactory.SUPPORT_DTD, false); |
| XMLStreamReader sr = inf.createXMLStreamReader(new StreamSource(new ByteArrayInputStream(b))); |
| |
| return (JiriManifest) jc.createUnmarshaller().unmarshal(sr); |
| } |
| } |