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/*
* SonarQube
* Copyright (C) 2009-2021 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.scm.svn;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.time.Instant;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import javax.annotation.CheckForNull;
import org.sonar.api.batch.scm.BlameCommand;
import org.sonar.api.batch.scm.ScmProvider;
import org.sonar.api.utils.log.Logger;
import org.sonar.api.utils.log.Loggers;
import org.tmatesoft.svn.core.SVNDepth;
import org.tmatesoft.svn.core.SVNException;
import org.tmatesoft.svn.core.SVNLogEntryPath;
import org.tmatesoft.svn.core.SVNNodeKind;
import org.tmatesoft.svn.core.SVNURL;
import org.tmatesoft.svn.core.wc.SVNClientManager;
import org.tmatesoft.svn.core.wc.SVNDiffClient;
import org.tmatesoft.svn.core.wc.SVNInfo;
import org.tmatesoft.svn.core.wc.SVNLogClient;
import org.tmatesoft.svn.core.wc.SVNRevision;
import org.tmatesoft.svn.core.wc.SVNWCClient;
import static org.sonar.scm.svn.SvnScmSupport.newSvnClientManager;
public class SvnScmProvider extends ScmProvider {
private static final Logger LOG = Loggers.get(SvnScmProvider.class);
private final SvnConfiguration configuration;
private final SvnBlameCommand blameCommand;
private final FindFork findFork;
public SvnScmProvider(SvnConfiguration configuration, SvnBlameCommand blameCommand, FindFork findFork) {
this.configuration = configuration;
this.blameCommand = blameCommand;
this.findFork = findFork;
}
@Override
public String key() {
return "svn";
}
@Override
public boolean supports(File baseDir) {
File folder = baseDir;
while (folder != null) {
if (new File(folder, ".svn").exists()) {
return true;
}
folder = folder.getParentFile();
}
return false;
}
@Override
public BlameCommand blameCommand() {
return blameCommand;
}
@CheckForNull
@Override
public Set<Path> branchChangedFiles(String targetBranchName, Path rootBaseDir) {
SVNClientManager clientManager = null;
try {
clientManager = newSvnClientManager(configuration);
return computeChangedPaths(rootBaseDir, clientManager);
} catch (SVNException e) {
LOG.warn(e.getMessage());
} finally {
if (clientManager != null) {
try {
clientManager.dispose();
} catch (Exception e) {
LOG.warn("Unable to dispose SVN ClientManager", e);
}
}
}
return null;
}
static Set<Path> computeChangedPaths(Path projectBasedir, SVNClientManager clientManager) throws SVNException {
SVNWCClient wcClient = clientManager.getWCClient();
SVNInfo svnInfo = wcClient.doInfo(projectBasedir.toFile(), null);
// SVN path of the repo root, for example: /C:/Users/JANOSG~1/AppData/Local/Temp/x/y
Path svnRootPath = toPath(svnInfo.getRepositoryRootURL());
// the svn root path may be "" for urls like http://svnserver/
// -> set it to "/" to avoid crashing when using Path.relativize later
if (svnRootPath.equals(Paths.get(""))) {
svnRootPath = Paths.get("/");
}
// SVN path of projectBasedir, for example: /C:/Users/JANOSG~1/AppData/Local/Temp/x/y/branches/b1
Path svnProjectPath = toPath(svnInfo.getURL());
// path of projectBasedir, as "absolute path within the SVN repo", for example: /branches/b1
Path inRepoProjectPath = Paths.get("/").resolve(svnRootPath.relativize(svnProjectPath));
// We inspect "svn log" from latest revision until copy-point.
// The same path may appear in multiple commits, the ordering of changes and removals is important.
Set<Path> paths = new HashSet<>();
Set<Path> removed = new HashSet<>();
SVNLogClient svnLogClient = clientManager.getLogClient();
svnLogClient.doLog(new File[] {projectBasedir.toFile()}, null, null, null, true, true, 0, svnLogEntry ->
svnLogEntry.getChangedPaths().values().forEach(entry -> {
if (entry.getKind().equals(SVNNodeKind.FILE)) {
Path path = projectBasedir.resolve(inRepoProjectPath.relativize(Paths.get(entry.getPath())));
if (isModified(entry)) {
// Skip if the path is removed in a more recent commit
if (!removed.contains(path)) {
paths.add(path);
}
} else if (entry.getType() == SVNLogEntryPath.TYPE_DELETED) {
removed.add(path);
}
}
}));
return paths;
}
private static Path toPath(SVNURL svnUrl) {
if ("file".equals(svnUrl.getProtocol())) {
try {
return Paths.get(new URL("file", svnUrl.getHost(), svnUrl.getPath()).toURI());
} catch (URISyntaxException | MalformedURLException e) {
throw new IllegalStateException(e);
}
}
return Paths.get(svnUrl.getURIEncodedPath());
}
private static boolean isModified(SVNLogEntryPath entry) {
return entry.getType() == SVNLogEntryPath.TYPE_ADDED
|| entry.getType() == SVNLogEntryPath.TYPE_MODIFIED;
}
@CheckForNull
@Override
public Map<Path, Set<Integer>> branchChangedLines(String targetBranchName, Path rootBaseDir, Set<Path> changedFiles) {
SVNClientManager clientManager = null;
try {
clientManager = newSvnClientManager(configuration);
// find reference revision number: the copy point
SVNLogClient svnLogClient = clientManager.getLogClient();
long[] revisionCounter = {0};
svnLogClient.doLog(new File[] {rootBaseDir.toFile()}, null, null, null, true, true, 0,
svnLogEntry -> revisionCounter[0] = svnLogEntry.getRevision());
long startRev = revisionCounter[0];
SVNDiffClient svnDiffClient = clientManager.getDiffClient();
File path = rootBaseDir.toFile();
ChangedLinesComputer computer = newChangedLinesComputer(rootBaseDir, changedFiles);
svnDiffClient.doDiff(path, SVNRevision.create(startRev), path, SVNRevision.WORKING, SVNDepth.INFINITY, false, computer.receiver(), null);
return computer.changedLines();
} catch (Exception e) {
LOG.warn("Failed to get changed lines from Subversion", e);
} finally {
if (clientManager != null) {
try {
clientManager.dispose();
} catch (Exception e) {
LOG.warn("Unable to dispose SVN ClientManager", e);
}
}
}
return null;
}
@CheckForNull
@Override
public Instant forkDate(String referenceBranch, Path rootBaseDir) {
try {
return findFork.findDate(rootBaseDir, referenceBranch);
} catch (SVNException e) {
LOG.warn("Unable to find fork date with '" + referenceBranch + "'", e);
return null;
}
}
ChangedLinesComputer newChangedLinesComputer(Path rootBaseDir, Set<Path> changedFiles) {
return new ChangedLinesComputer(rootBaseDir, changedFiles);
}
}
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