@NotNull
private Trinity<String[], VirtualFile[], VirtualFile[]> cacheThings() {
Trinity<String[], VirtualFile[], VirtualFile[]> result;
if (myList.isEmpty()) {
result = EMPTY;
} else {
VirtualFilePointer[] vf = myList.toArray(new VirtualFilePointer[myList.size()]);
List<VirtualFile> cachedFiles = new ArrayList<VirtualFile>(vf.length);
List<String> cachedUrls = new ArrayList<String>(vf.length);
List<VirtualFile> cachedDirectories = new ArrayList<VirtualFile>(vf.length / 3);
boolean allFilesAreDirs = true;
for (VirtualFilePointer v : vf) {
VirtualFile file = v.getFile();
String url = v.getUrl();
cachedUrls.add(url);
if (file != null) {
cachedFiles.add(file);
if (file.isDirectory()) {
cachedDirectories.add(file);
} else {
allFilesAreDirs = false;
}
}
}
VirtualFile[] directories = VfsUtilCore.toVirtualFileArray(cachedDirectories);
VirtualFile[] files =
allFilesAreDirs ? directories : VfsUtilCore.toVirtualFileArray(cachedFiles);
String[] urlsArray = ArrayUtil.toStringArray(cachedUrls);
result = Trinity.create(urlsArray, files, directories);
}
myCachedThings = result;
myTimeStampOfCachedThings = myVirtualFilePointerManager.getModificationCount();
return result;
}
final boolean allowVisitChildren(@NotNull VirtualFile file) {
if (!file.is(VFileProperty.SYMLINK)) {
return true;
}
if (!myFollowSymLinks || VfsUtilCore.isInvalidLink(file)) {
return false;
}
VirtualFile target = file.getCanonicalFile();
List<VirtualFile> links = myVisitedTargets.get(target);
if (links == null) {
myVisitedTargets.put(target, ContainerUtil.newSmartList(file));
return true;
}
boolean hasLoop = false;
for (VirtualFile link : links) {
if (VfsUtilCore.isAncestor(link, file, true)) {
hasLoop = true;
break;
}
}
links.add(file);
return !hasLoop;
}
@Override
public <S> List<S> filterUniqueRoots(
final List<S> in, final Convertor<S, VirtualFile> convertor) {
Collections.sort(
in, new ComparatorDelegate<S, VirtualFile>(convertor, FilePathComparator.getInstance()));
for (int i = 1; i < in.size(); i++) {
final S sChild = in.get(i);
final VirtualFile child = convertor.convert(sChild);
final VirtualFile childRoot = GitUtil.gitRootOrNull(child);
if (childRoot == null) {
// non-git file actually, skip it
continue;
}
for (int j = i - 1; j >= 0; --j) {
final S sParent = in.get(j);
final VirtualFile parent = convertor.convert(sParent);
// the method check both that parent is an ancestor of the child and that they share common
// git root
if (VfsUtilCore.isAncestor(parent, child, false)
&& VfsUtilCore.isAncestor(childRoot, parent, false)) {
in.remove(i);
//noinspection AssignmentToForLoopParameter
--i;
break;
}
}
}
return in;
}
@Nullable
private VirtualFile setupGradleSettingsFile(
@NotNull VirtualFile modelContentRootDir, @NotNull ModifiableRootModel model)
throws ConfigurationException {
VirtualFile file = null;
if (myWizardContext.isCreatingNewProject()) {
final String moduleDirName =
VfsUtilCore.getRelativePath(modelContentRootDir, model.getProject().getBaseDir(), '/');
file =
getExternalProjectConfigFile(
model.getProject().getBasePath(), GradleConstants.SETTINGS_FILE_NAME);
if (file == null) return null;
Map<String, String> attributes = ContainerUtil.newHashMap();
final String projectName = model.getProject().getName();
attributes.put(TEMPLATE_ATTRIBUTE_PROJECT_NAME, projectName);
attributes.put(TEMPLATE_ATTRIBUTE_MODULE_DIR_NAME, moduleDirName);
attributes.put(TEMPLATE_ATTRIBUTE_MODULE_NAME, model.getModule().getName());
saveFile(file, TEMPLATE_GRADLE_SETTINGS, attributes);
} else {
Map<String, Module> moduleMap = ContainerUtil.newHashMap();
for (Module module : ModuleManager.getInstance(model.getProject()).getModules()) {
for (ContentEntry contentEntry : model.getContentEntries()) {
if (contentEntry.getFile() != null) {
moduleMap.put(contentEntry.getFile().getPath(), module);
}
}
}
VirtualFile virtualFile = modelContentRootDir;
Module module = null;
while (virtualFile != null && module == null) {
module = moduleMap.get(virtualFile.getPath());
virtualFile = virtualFile.getParent();
}
if (module != null) {
String rootProjectPath =
module.getOptionValue(ExternalSystemConstants.ROOT_PROJECT_PATH_KEY);
if (!StringUtil.isEmpty(rootProjectPath)) {
VirtualFile rootProjectFile = VfsUtil.findFileByIoFile(new File(rootProjectPath), true);
if (rootProjectFile == null) return null;
final String moduleDirName =
VfsUtilCore.getRelativePath(modelContentRootDir, rootProjectFile, '/');
file = getExternalProjectConfigFile(rootProjectPath, GradleConstants.SETTINGS_FILE_NAME);
if (file == null) return null;
Map<String, String> attributes = ContainerUtil.newHashMap();
attributes.put(TEMPLATE_ATTRIBUTE_MODULE_DIR_NAME, moduleDirName);
attributes.put(TEMPLATE_ATTRIBUTE_MODULE_NAME, model.getModule().getName());
appendToFile(file, TEMPLATE_GRADLE_SETTINGS_MERGE, attributes);
}
}
}
return file;
}
private int compareByLibDir(
@NotNull VirtualFile m1File, @NotNull VirtualFile m2File, @Nullable VirtualFile libDir) {
if (libDir == null) return COMPARE_NO_RESULT;
boolean m1InLib = VfsUtilCore.isAncestor(libDir, m1File, true);
boolean m2InLib = VfsUtilCore.isAncestor(libDir, m2File, true);
if (m1InLib || m2InLib) {
return (m1InLib ? -1 : 0) + (m2InLib ? 1 : 0);
}
return COMPARE_NO_RESULT;
}
public void testFileLength() throws Exception {
File file = FileUtil.createTempFile("test", "txt");
FileUtil.writeToFile(file, "hello");
VirtualFile virtualFile = LocalFileSystem.getInstance().refreshAndFindFileByIoFile(file);
assertNotNull(virtualFile);
String s = VfsUtilCore.loadText(virtualFile);
assertEquals("hello", s);
assertEquals(5, virtualFile.getLength());
FileUtil.writeToFile(file, "new content");
((PersistentFSImpl) PersistentFS.getInstance()).cleanPersistedContents();
s = VfsUtilCore.loadText(virtualFile);
assertEquals("new content", s);
assertEquals(11, virtualFile.getLength());
}
@Nullable
protected FileCoverageInfo collectBaseFileCoverage(
@NotNull final VirtualFile file,
@NotNull final Annotator annotator,
@NotNull final ProjectData projectData,
@NotNull final Map<String, String> normalizedFiles2Files) {
final String filePath = normalizeFilePath(file.getPath());
// process file
final FileCoverageInfo info;
final ClassData classData = getClassData(filePath, projectData, normalizedFiles2Files);
if (classData != null) {
// fill info from coverage data
info = fileInfoForCoveredFile(classData);
} else {
// file wasn't mentioned in coverage information
info = fillInfoForUncoveredFile(VfsUtilCore.virtualToIoFile(file));
}
if (info != null) {
annotator.annotateFile(filePath, info);
}
return info;
}
public void actionPerformed(final ActionEvent e) {
final FileChooserDescriptor descriptor =
new FilterFileChooserDescriptor(
"Select",
"Select a file to import",
new FileFilter() {
@Override
public boolean accept(final File f) {
return f.isDirectory()
|| "xml".equalsIgnoreCase(FileUtilRt.getExtension(f.getAbsolutePath()));
}
@Override
public String getDescription() {
return "*.xml";
}
});
final Component parent = SwingUtilities.getRoot(_importFile);
final VirtualFile toSelect = LocalFileSystem.getInstance().findFileByPath(_importDir);
final VirtualFile chosen = FileChooser.chooseFile(descriptor, parent, null, toSelect);
if (chosen != null) {
_selectedFile = VfsUtilCore.virtualToIoFile(chosen);
final String newLocation = _selectedFile.getPath();
_importFile.setText(newLocation);
_dialogBuilder.setOkActionEnabled(true);
}
}
public void testHardLinks() throws Exception {
if (!SystemInfo.isWindows && !SystemInfo.isUnix) {
System.err.println(getName() + " skipped: " + SystemInfo.OS_NAME);
return;
}
final boolean safeWrite = GeneralSettings.getInstance().isUseSafeWrite();
final File dir = FileUtil.createTempDirectory("hardlinks.", ".dir", false);
final SafeWriteRequestor requestor = new SafeWriteRequestor() {};
try {
GeneralSettings.getInstance().setUseSafeWrite(false);
final File targetFile = new File(dir, "targetFile");
assertTrue(targetFile.createNewFile());
final File hardLinkFile =
IoTestUtil.createHardLink(targetFile.getAbsolutePath(), "hardLinkFile");
final VirtualFile file = LocalFileSystem.getInstance().refreshAndFindFileByIoFile(targetFile);
assertNotNull(file);
file.setBinaryContent("hello".getBytes("UTF-8"), 0, 0, requestor);
assertTrue(file.getLength() > 0);
final VirtualFile check =
LocalFileSystem.getInstance().refreshAndFindFileByIoFile(hardLinkFile);
assertNotNull(check);
assertEquals(file.getLength(), check.getLength());
assertEquals("hello", VfsUtilCore.loadText(check));
} finally {
GeneralSettings.getInstance().setUseSafeWrite(safeWrite);
FileUtil.delete(dir);
}
}
@Nullable
static String getRelativePath(final VirtualFile virtualFile, final Project project) {
String url = virtualFile.getPresentableUrl();
if (project == null) {
return url;
}
VirtualFile root =
ProjectFileIndex.SERVICE.getInstance(project).getContentRootForFile(virtualFile);
if (root != null) {
return root.getName()
+ File.separatorChar
+ VfsUtilCore.getRelativePath(virtualFile, root, File.separatorChar);
}
final VirtualFile baseDir = project.getBaseDir();
if (baseDir != null) {
//noinspection ConstantConditions
final String projectHomeUrl = baseDir.getPresentableUrl();
if (url.startsWith(projectHomeUrl)) {
final String cont = url.substring(projectHomeUrl.length());
if (cont.isEmpty()) return null;
url = "..." + cont;
}
}
return url;
}
public ImportRunProfile(VirtualFile file, Project project) {
myFile = file;
myProject = project;
try {
final Document document = JDOMUtil.loadDocument(VfsUtilCore.virtualToIoFile(myFile));
final Element config = document.getRootElement().getChild("config");
if (config != null) {
String configTypeId = config.getAttributeValue("configId");
if (configTypeId != null) {
final ConfigurationType configurationType =
ConfigurationTypeUtil.findConfigurationType(configTypeId);
if (configurationType != null) {
myConfiguration =
configurationType.getConfigurationFactories()[0].createTemplateConfiguration(
project);
myConfiguration.setName(config.getAttributeValue("name"));
myConfiguration.readExternal(config);
final Executor executor =
ExecutorRegistry.getInstance().getExecutorById(DefaultRunExecutor.EXECUTOR_ID);
if (executor != null) {
if (myConfiguration instanceof SMRunnerConsolePropertiesProvider) {
myProperties =
((SMRunnerConsolePropertiesProvider) myConfiguration)
.createTestConsoleProperties(executor);
}
}
}
}
}
} catch (Exception ignore) {
}
}
private String dubImportPath(String rootPath) {
String pathUrl = VirtualFileManager.constructUrl(LocalFileSystem.PROTOCOL, rootPath);
VirtualFile file = VirtualFileManager.getInstance().findFileByUrl(pathUrl);
if (file == null) {
return null;
}
final List<String> sourcesDir = new ArrayList<>();
VfsUtilCore.visitChildrenRecursively(
file,
new VirtualFileVisitor() {
@Override
public boolean visitFile(@NotNull VirtualFile file) {
if (file.isDirectory()) {
if (file.getName().equals("source")) {
sourcesDir.add("source");
}
if (file.getName().equals("src")) {
sourcesDir.add("src");
}
}
return true;
}
});
return sourcesDir.isEmpty() ? null : rootPath + File.separator + sourcesDir.get(0);
}
@NotNull
private static Collection<VirtualFile> gatherIncludeRoots(
Collection<VirtualFile> goPathSourcesRoots, Set<VirtualFile> excludeRoots) {
Collection<VirtualFile> includeRoots = ContainerUtil.newHashSet();
for (VirtualFile goPathSourcesDirectory : goPathSourcesRoots) {
ProgressIndicatorProvider.checkCanceled();
boolean excludedRootIsAncestor = false;
for (VirtualFile excludeRoot : excludeRoots) {
ProgressIndicatorProvider.checkCanceled();
if (VfsUtilCore.isAncestor(excludeRoot, goPathSourcesDirectory, false)) {
excludedRootIsAncestor = true;
break;
}
}
if (excludedRootIsAncestor) {
continue;
}
for (VirtualFile file : goPathSourcesDirectory.getChildren()) {
ProgressIndicatorProvider.checkCanceled();
if (file.isDirectory() && !excludeRoots.contains(file)) {
includeRoots.add(file);
}
}
}
return includeRoots;
}
private void doTest(
@NotNull String fileName, int lineNumber, @NotNull Function1<VirtualFile, String> className) {
if (rootDir == null) {
configure();
}
assert rootDir != null;
Filter filter = new JetExceptionFilterFactory().create(GlobalSearchScope.allScope(myProject));
VirtualFile expectedFile = VfsUtilCore.findRelativeFile(fileName, rootDir);
assertNotNull(expectedFile);
String line = createStackTraceElementLine(fileName, className.invoke(expectedFile), lineNumber);
Filter.Result result = filter.applyFilter(line, 0);
assertNotNull(result);
HyperlinkInfo info = result.getFirstHyperlinkInfo();
assertNotNull(info);
assertInstanceOf(info, OpenFileHyperlinkInfo.class);
OpenFileDescriptor descriptor = ((OpenFileHyperlinkInfo) info).getDescriptor();
assertNotNull(descriptor);
assertEquals(expectedFile, descriptor.getFile());
Document document = FileDocumentManager.getInstance().getDocument(expectedFile);
assertNotNull(document);
int expectedOffset = document.getLineStartOffset(lineNumber - 1);
assertEquals(expectedOffset, descriptor.getOffset());
}
@NotNull
private static String findMainClass(VirtualFile gradleHome, VirtualFile script, Project project) {
final String userDefined = System.getProperty("gradle.launcher.class");
if (StringUtil.isNotEmpty(userDefined)) {
return userDefined;
}
VirtualFile launcher = gradleHome.findFileByRelativePath("bin/gradle");
if (launcher == null) {
launcher = gradleHome.findFileByRelativePath("bin/gradle.bat");
}
if (launcher != null) {
try {
final String text = StringUtil.convertLineSeparators(VfsUtilCore.loadText(launcher));
final Matcher matcher = MAIN_CLASS_NAME_PATTERN.matcher(text);
if (matcher.find()) {
String candidate = matcher.group(1);
if (StringUtil.isNotEmpty(candidate)) {
return candidate;
}
}
} catch (IOException ignored) {
}
}
final PsiFile grFile = PsiManager.getInstance(project).findFile(script);
if (grFile != null
&& JavaPsiFacade.getInstance(project)
.findClass("org.gradle.BootstrapMain", grFile.getResolveScope())
!= null) {
return "org.gradle.BootstrapMain";
}
return "org.gradle.launcher.GradleMain";
}
@Nullable
@Override
public RefEntity getReference(final String type, final String fqName) {
for (RefManagerExtension extension : myExtensions.values()) {
final RefEntity refEntity = extension.getReference(type, fqName);
if (refEntity != null) return refEntity;
}
if (SmartRefElementPointer.FILE.equals(type)) {
return RefFileImpl.fileFromExternalName(this, fqName);
}
if (SmartRefElementPointer.MODULE.equals(type)) {
return RefModuleImpl.moduleFromName(this, fqName);
}
if (SmartRefElementPointer.PROJECT.equals(type)) {
return getRefProject();
}
if (SmartRefElementPointer.DIR.equals(type)) {
String url =
VfsUtilCore.pathToUrl(PathMacroManager.getInstance(getProject()).expandPath(fqName));
VirtualFile vFile = VirtualFileManager.getInstance().findFileByUrl(url);
if (vFile != null) {
final PsiDirectory dir = PsiManager.getInstance(getProject()).findDirectory(vFile);
return getReference(dir);
}
}
return null;
}
@NotNull
public GeneralCommandLine createCommand(
@NotNull Module module,
@Nullable String jvmParams,
boolean forCreation,
@NotNull MvcCommand command)
throws ExecutionException {
final JavaParameters params =
createJavaParameters(module, forCreation, false, true, jvmParams, command);
addJavaHome(params, module);
final GeneralCommandLine commandLine = createCommandLine(params);
final VirtualFile griffonHome = getSdkRoot(module);
if (griffonHome != null) {
commandLine
.getEnvironment()
.put(getSdkHomePropertyName(), FileUtil.toSystemDependentName(griffonHome.getPath()));
}
final VirtualFile root = findAppRoot(module);
final File ioRoot =
root != null ? VfsUtilCore.virtualToIoFile(root) : new File(module.getModuleDirPath());
commandLine.setWorkDirectory(forCreation ? ioRoot.getParentFile() : ioRoot);
return commandLine;
}
private static void appendPackagesFolders(
final @NotNull Collection<String> excludedPackagesUrls,
final @Nullable VirtualFile folder,
final @NotNull ProjectFileIndex fileIndex) {
if (folder == null) return;
VfsUtilCore.visitChildrenRecursively(
folder,
new VirtualFileVisitor() {
@NotNull
public Result visitFileEx(@NotNull final VirtualFile file) {
if (!fileIndex.isInContent(file)) {
return SKIP_CHILDREN;
}
if (file.isDirectory()) {
if ("packages".equals(file.getName())) {
return SKIP_CHILDREN;
} else {
excludedPackagesUrls.add(file.getUrl() + "/packages");
}
}
return CONTINUE;
}
});
}
private boolean ensureUsagesWritable(
ReplaceContext replaceContext, Collection<Usage> selectedUsages) {
Set<VirtualFile> readOnlyFiles = null;
for (final Usage usage : selectedUsages) {
final VirtualFile file = ((UsageInFile) usage).getFile();
if (file != null && !file.isWritable()) {
if (readOnlyFiles == null) readOnlyFiles = new HashSet<VirtualFile>();
readOnlyFiles.add(file);
}
}
if (readOnlyFiles != null) {
ReadonlyStatusHandler.getInstance(myProject)
.ensureFilesWritable(VfsUtilCore.toVirtualFileArray(readOnlyFiles));
}
if (hasReadOnlyUsages(selectedUsages)) {
int result =
Messages.showOkCancelDialog(
replaceContext.getUsageView().getComponent(),
FindBundle.message("find.replace.occurrences.in.read.only.files.prompt"),
FindBundle.message("find.replace.occurrences.in.read.only.files.title"),
Messages.getWarningIcon());
if (result != Messages.OK) {
return false;
}
}
return true;
}
private static String url2path(String url) {
String path = VfsUtilCore.urlToPath(url);
int separatorIndex = path.indexOf(JarFileSystem.JAR_SEPARATOR);
if (separatorIndex < 0) return path;
return path.substring(0, separatorIndex);
}
/**
* Collects all files which are located in the passed directory.
*
* @throws IllegalArgumentException if <code>dir</code> isn't a directory.
*/
public static void collectFiles(
final VirtualFile dir,
final List<VirtualFile> files,
final boolean recursive,
final boolean addDirectories) {
if (!dir.isDirectory()) {
throw new IllegalArgumentException(
VcsBundle.message("exception.text.file.should.be.directory", dir.getPresentableUrl()));
}
final FileTypeManager fileTypeManager = FileTypeManager.getInstance();
VfsUtilCore.visitChildrenRecursively(
dir,
new VirtualFileVisitor() {
@Override
public boolean visitFile(@NotNull VirtualFile file) {
if (file.isDirectory()) {
if (addDirectories) {
files.add(file);
}
if (!recursive && !Comparing.equal(file, dir)) {
return false;
}
} else if (fileTypeManager == null || file.getFileType() != FileTypes.UNKNOWN) {
files.add(file);
}
return true;
}
});
}
/**
* @param srcFile
* @param sourceRoot
* @param packagePrefix
* @return A 'package'-path to a given src file relative to a specified root. "/" slashes must be
* used
*/
protected static String calcPackagePath(
VirtualFile srcFile, VirtualFile sourceRoot, String packagePrefix) {
final String prefix =
packagePrefix != null && packagePrefix.length() > 0
? packagePrefix.replace('.', '/') + "/"
: "";
return prefix + VfsUtilCore.getRelativePath(srcFile, sourceRoot, '/');
}
public static VirtualFile findVirtualFile(String systemId) {
try {
return VfsUtil.findFileByURL(new URL(systemId));
} catch (Exception e) {
LOG.warn("Failed to build file from uri <" + systemId + ">", e);
return VirtualFileManager.getInstance().findFileByUrl(VfsUtilCore.fixURLforIDEA(systemId));
}
}
@Nullable
private static ContentEntry findContentEntry(ModuleRootModel rootModel, VirtualFile file) {
return ContainerUtil.find(
rootModel.getContentEntries(),
object -> {
VirtualFile entryRoot = object.getFile();
return entryRoot != null && VfsUtilCore.isAncestor(entryRoot, file, false);
});
}
@Override
public VirtualFile[] getAllVersionedRoots() {
List<VirtualFile> vFiles = new ArrayList<VirtualFile>();
final AbstractVcs[] vcses = myMappings.getActiveVcses();
for (AbstractVcs vcs : vcses) {
Collections.addAll(vFiles, getRootsUnderVcs(vcs));
}
return VfsUtilCore.toVirtualFileArray(vFiles);
}
public boolean visitRoot(VirtualFile root, Module module, Sdk sdk, boolean isModuleSource) {
String vpath = VfsUtilCore.urlToPath(root.getUrl());
if (myPath.startsWith(vpath)) {
myResult = vpath;
return false;
} else {
return true;
}
}
public DirectoryNode(
VirtualFile aDirectory,
Project project,
boolean compactPackages,
boolean showFQName,
VirtualFile baseDir,
final VirtualFile[] contentRoots) {
super(project);
myVDirectory = aDirectory;
final ProjectRootManager projectRootManager = ProjectRootManager.getInstance(project);
final ProjectFileIndex index = projectRootManager.getFileIndex();
String dirName = aDirectory.getName();
if (showFQName) {
final VirtualFile contentRoot = index.getContentRootForFile(myVDirectory);
if (contentRoot != null) {
if (Comparing.equal(myVDirectory, contentRoot)) {
myFQName = dirName;
} else {
final VirtualFile sourceRoot = index.getSourceRootForFile(myVDirectory);
if (Comparing.equal(myVDirectory, sourceRoot)) {
myFQName = VfsUtilCore.getRelativePath(myVDirectory, contentRoot, '/');
} else if (sourceRoot != null) {
myFQName = VfsUtilCore.getRelativePath(myVDirectory, sourceRoot, '/');
} else {
myFQName = VfsUtilCore.getRelativePath(myVDirectory, contentRoot, '/');
}
}
if (contentRoots.length > 1
&& ProjectRootsUtil.isModuleContentRoot(myVDirectory, project)) {
myFQName = getContentRootName(baseDir, myFQName);
}
} else {
myFQName = FilePatternPackageSet.getLibRelativePath(myVDirectory, index);
}
dirName = myFQName;
} else {
if (contentRoots.length > 1 && ProjectRootsUtil.isModuleContentRoot(myVDirectory, project)) {
dirName = getContentRootName(baseDir, dirName);
}
}
myDirName = dirName;
myCompactPackages = compactPackages;
}
@NotNull
private static VirtualFile[] filterByReadOnliness(@NotNull VirtualFile[] files) {
List<VirtualFile> result = new ArrayList<VirtualFile>();
for (VirtualFile file : files) {
if (file.isInLocalFileSystem()) {
result.add(file);
}
}
return VfsUtilCore.toVirtualFileArray(result);
}
// inner roots disclosed
public static List<VirtualFile> getRootsUnder(
final List<VirtualFile> roots, final VirtualFile underWhat) {
final List<VirtualFile> result = new ArrayList<VirtualFile>(roots.size());
for (VirtualFile root : roots) {
if (VfsUtilCore.isAncestor(underWhat, root, false)) {
result.add(root);
}
}
return result;
}
public void testRelativePath() throws Exception {
final File root = new File(PathManagerEx.getTestDataPath());
final File testRoot = new File(new File(root, "vfs"), "relativePath");
VirtualFile vTestRoot = LocalFileSystem.getInstance().findFileByIoFile(testRoot);
assertNotNull(vTestRoot);
assertTrue(vTestRoot.isDirectory());
final File subDir = new File(testRoot, "subDir");
final VirtualFile vSubDir = LocalFileSystem.getInstance().findFileByIoFile(subDir);
assertNotNull(vSubDir);
final File subSubDir = new File(subDir, "subSubDir");
final VirtualFile vSubSubDir = LocalFileSystem.getInstance().findFileByIoFile(subSubDir);
assertNotNull(vSubSubDir);
assertEquals("subDir", VfsUtilCore.getRelativePath(vSubDir, vTestRoot, '/'));
assertEquals("subDir/subSubDir", VfsUtilCore.getRelativePath(vSubSubDir, vTestRoot, '/'));
assertEquals("", VfsUtilCore.getRelativePath(vTestRoot, vTestRoot, '/'));
}