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, '/'));
}
private static void addSourceDirectoriesFromLibraries(
@NotNull Project project,
@NotNull VirtualFile directory,
@NotNull Collection<VirtualFile> outSourceRoots) {
ProjectFileIndex index = ProjectFileIndex.SERVICE.getInstance(project);
VirtualFile classRoot = index.getClassRootForFile(directory);
if (classRoot == null) return;
String relativePath = VfsUtilCore.getRelativePath(directory, classRoot);
if (relativePath == null) return;
for (OrderEntry orderEntry : index.getOrderEntriesForFile(directory)) {
for (VirtualFile sourceRoot : orderEntry.getFiles(OrderRootType.SOURCES)) {
VirtualFile sourceFile = sourceRoot.findFileByRelativePath(relativePath);
if (sourceFile != null) {
outSourceRoots.add(sourceFile);
}
}
}
}