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- /*
- * SonarQube
- * Copyright (C) 2009-2020 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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