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/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* 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 org.jetbrains.idea.svn;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.progress.BackgroundTaskQueue;
import com.intellij.openapi.progress.ProgressIndicator;
import com.intellij.openapi.progress.Task;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vcs.CalledInBackground;
import com.intellij.openapi.vcs.ProjectLevelVcsManager;
import com.intellij.openapi.vcs.VcsListener;
import com.intellij.openapi.vcs.ZipperUpdater;
import com.intellij.openapi.vcs.changes.BackgroundFromStartOption;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.util.Alarm;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.idea.svn.info.Info;
import org.tmatesoft.svn.core.SVNURL;
import org.tmatesoft.svn.core.internal.util.SVNURLUtil;
import java.io.File;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
// 1. listen to roots changes
// 2. - possibly - to deletion/checkouts??? what if WC roots can be
public class RootsToWorkingCopies implements VcsListener {
private final Object myLock;
private final Map<VirtualFile, WorkingCopy> myRootMapping;
private final Set<VirtualFile> myUnversioned;
private final BackgroundTaskQueue myQueue;
private final Project myProject;
private final ZipperUpdater myZipperUpdater;
private Runnable myRechecker;
private final SvnVcs myVcs;
public RootsToWorkingCopies(final SvnVcs vcs) {
myProject = vcs.getProject();
myQueue = new BackgroundTaskQueue(myProject, "SVN VCS roots authorization checker");
myLock = new Object();
myRootMapping = new HashMap<VirtualFile, WorkingCopy>();
myUnversioned = new HashSet<VirtualFile>();
myVcs = vcs;
myRechecker = new Runnable() {
public void run() {
final VirtualFile[] roots = ProjectLevelVcsManager.getInstance(myProject).getRootsUnderVcs(myVcs);
synchronized (myLock) {
clear();
for (VirtualFile root : roots) {
addRoot(root);
}
}
}
};
myZipperUpdater = new ZipperUpdater(200, Alarm.ThreadToUse.POOLED_THREAD, myProject);
}
private void addRoot(final VirtualFile root) {
myQueue.run(new Task.Backgroundable(myProject, "Looking for '" + root.getPath() + "' working copy root", false,
BackgroundFromStartOption.getInstance()) {
public void run(@NotNull ProgressIndicator indicator) {
calculateRoot(root);
}
});
}
@Nullable
@CalledInBackground
public WorkingCopy getMatchingCopy(final SVNURL url) {
assert (! ApplicationManager.getApplication().isDispatchThread()) || ApplicationManager.getApplication().isUnitTestMode();
if (url == null) return null;
final VirtualFile[] roots = ProjectLevelVcsManager.getInstance(myProject).getRootsUnderVcs(SvnVcs.getInstance(myProject));
synchronized (myLock) {
for (VirtualFile root : roots) {
final WorkingCopy wcRoot = getWcRoot(root);
if (wcRoot != null) {
final SVNURL common = SVNURLUtil.getCommonURLAncestor(wcRoot.getUrl(), url);
if (wcRoot.getUrl().equals(common) || url.equals(common)) {
return wcRoot;
}
}
}
}
return null;
}
@CalledInBackground
@Nullable
public WorkingCopy getWcRoot(final VirtualFile root) {
assert (! ApplicationManager.getApplication().isDispatchThread()) || ApplicationManager.getApplication().isUnitTestMode();
synchronized (myLock) {
if (myUnversioned.contains(root)) return null;
final WorkingCopy existing = myRootMapping.get(root);
if (existing != null) return existing;
}
return calculateRoot(root);
}
@Nullable
private WorkingCopy calculateRoot(final VirtualFile root) {
File workingCopyRoot = SvnUtil.getWorkingCopyRootNew(new File(root.getPath()));
WorkingCopy workingCopy = null;
if (workingCopyRoot != null) {
final Info svnInfo = myVcs.getInfo(workingCopyRoot);
if (svnInfo != null && svnInfo.getURL() != null) {
workingCopy = new WorkingCopy(workingCopyRoot, svnInfo.getURL(), true);
}
}
return registerWorkingCopy(root, workingCopy);
}
private WorkingCopy registerWorkingCopy(@NotNull VirtualFile root, @Nullable WorkingCopy resolvedWorkingCopy) {
synchronized (myLock) {
if (resolvedWorkingCopy == null) {
myRootMapping.remove(root);
myUnversioned.add(root);
} else {
myUnversioned.remove(root);
myRootMapping.put(root, resolvedWorkingCopy);
}
}
return resolvedWorkingCopy;
}
public void clear() {
synchronized (myLock) {
myRootMapping.clear();
myUnversioned.clear();
myZipperUpdater.stop();
}
}
public void directoryMappingChanged() {
// todo +- here... shouldnt be
myVcs.getAuthNotifier().clear();
myZipperUpdater.queue(myRechecker);
}
}
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