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/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.tests.tb3;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jgit.api.DiffCommand;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.errors.GitAPIException;
import org.eclipse.jgit.diff.DiffEntry;
import org.eclipse.jgit.diff.DiffEntry.ChangeType;
import org.eclipse.jgit.diff.DiffFormatter;
import org.eclipse.jgit.diff.RawTextComparator;
import org.eclipse.jgit.errors.AmbiguousObjectException;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.errors.NoWorkTreeException;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
import org.eclipse.jgit.util.io.DisabledOutputStream;
/**
*
* @since
* @author Vaadin Ltd
*/
public class ChangedTB3TestLocator extends TB3TestLocator {
@Override
protected <T> List<Class<? extends T>> findClasses(Class<T> baseClass,
String basePackage, String[] ignoredPackages) throws IOException {
return getChangedTestClasses(baseClass);
}
protected List<String> getChangedFilePaths() {
List<String> filePaths = new ArrayList<String>();
for (DiffEntry diff : getDiffs()) {
if (diff.getChangeType() != ChangeType.DELETE) {
filePaths.add(diff.getNewPath());
System.out.println("Using changed file: " + diff.getNewPath());
}
}
return filePaths;
}
private List<DiffEntry> getDiffs() {
try {
FileRepositoryBuilder builder = new FileRepositoryBuilder();
Repository repository = builder.setWorkTree(new File("."))
.readEnvironment() // scan environment GIT_* variables
.findGitDir() // scan up the file system tree
.build();
List<DiffEntry> diffsInWorkingTree = getDiffsInWorkingTree(repository);
if (diffsInWorkingTree.isEmpty()) {
return getDiffsInHead(repository);
}
return diffsInWorkingTree;
} catch (IOException e) {
e.printStackTrace();
} catch (NoWorkTreeException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (GitAPIException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
private List<DiffEntry> getDiffsInWorkingTree(Repository repository)
throws GitAPIException {
Git git = new Git(repository);
DiffCommand diffCommand = git.diff();
List<DiffEntry> diffsInWorkingTree = new ArrayList<DiffEntry>();
for (DiffEntry diff : diffCommand.call()) {
if (pathIsExcluded(diff.getNewPath())) {
continue;
}
diffsInWorkingTree.add(diff);
}
return diffsInWorkingTree;
}
private boolean pathIsExcluded(String path) {
// Exclude temporary junit files and screenshots.
return path.startsWith("uitest/junit")
|| getScreenshotDirectory().contains(path);
}
private String getScreenshotDirectory() {
return PrivateTB3Configuration
.getProperty(PrivateTB3Configuration.SCREENSHOT_DIRECTORY);
}
private List<DiffEntry> getDiffsInHead(Repository repository)
throws AmbiguousObjectException, IncorrectObjectTypeException,
IOException, MissingObjectException {
RevWalk rw = new RevWalk(repository);
ObjectId head = repository.resolve(Constants.HEAD);
RevCommit commit = rw.parseCommit(head);
RevCommit parent = rw.parseCommit(commit.getParent(0).getId());
DiffFormatter df = new DiffFormatter(DisabledOutputStream.INSTANCE);
df.setRepository(repository);
df.setDiffComparator(RawTextComparator.DEFAULT);
df.setDetectRenames(true);
List<DiffEntry> diffs = df.scan(parent.getTree(), commit.getTree());
return diffs;
}
private <T> List<Class<? extends T>> getChangedTestClasses(
Class<T> baseClass) {
List<String> changedTestFilePaths = getTestFilePaths();
List<Class<? extends T>> testClasses = new ArrayList<Class<? extends T>>();
for (String filePath : changedTestFilePaths) {
String path = filePath.replace("uitest/src/", "").replace(".java",
"");
String className = path.replace("/", ".");
addClassIfMatches(testClasses, className, baseClass);
}
return testClasses;
}
private List<String> getTestFilePaths() {
List<String> changedTestFilePaths = new ArrayList<String>();
for (String filePath : getChangedFilePaths()) {
if (filePath.toLowerCase().startsWith("uitest")
&& filePath.toLowerCase().endsWith(".java")) {
changedTestFilePaths.add(filePath);
}
}
return changedTestFilePaths;
}
}
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