private static Language calcBaseLanguage(@NotNull VirtualFile file, @NotNull Project project) {
if (file instanceof LightVirtualFile) {
final Language language = ((LightVirtualFile) file).getLanguage();
if (language != null) {
return language;
}
}
FileType fileType = file.getFileType();
// Do not load content
if (fileType == UnknownFileType.INSTANCE) {
fileType = FileTypeRegistry.getInstance().detectFileTypeFromContent(file);
}
if (fileType.isBinary()) return Language.ANY;
if (isTooLarge(file)) return PlainTextLanguage.INSTANCE;
if (fileType instanceof LanguageFileType) {
return LanguageSubstitutors.INSTANCE.substituteLanguage(
((LanguageFileType) fileType).getLanguage(), file, project);
}
final ContentBasedFileSubstitutor[] processors =
Extensions.getExtensions(ContentBasedFileSubstitutor.EP_NAME);
for (ContentBasedFileSubstitutor processor : processors) {
Language language = processor.obtainLanguageForFile(file);
if (language != null) return language;
}
return PlainTextLanguage.INSTANCE;
}
public boolean isLibraryClassFile(@NotNull VirtualFile file) {
if (file.isDirectory()) return false;
if (myFileTypeRegistry.isFileIgnored(file)) return false;
VirtualFile parent = file.getParent();
DirectoryInfo parentInfo = getInfoForDirectory(parent);
return parentInfo != null && parentInfo.libraryClassRoot != null;
}
@NotNull
@Override
public PsiElement createFromTemplate(
final Project project,
final PsiDirectory directory,
String fileName,
final FileTemplate template,
final String templateText,
@NotNull final Map<String, Object> props)
throws IncorrectOperationException {
fileName = checkAppendExtension(fileName, template);
if (FileTypeManager.getInstance().isFileIgnored(fileName)) {
throw new IncorrectOperationException(
"This filename is ignored (Settings | Editor | File Types | Ignore files and folders)");
}
directory.checkCreateFile(fileName);
FileType type = FileTypeRegistry.getInstance().getFileTypeByFileName(fileName);
PsiFile file =
PsiFileFactory.getInstance(project).createFileFromText(fileName, type, templateText);
if (template.isReformatCode()) {
CodeStyleManager.getInstance(project).reformat(file);
}
file = (PsiFile) directory.add(file);
return file;
}
public boolean isIgnored(@NotNull VirtualFile file) {
if (myFileTypeRegistry.isFileIgnored(file)) return true;
if (myFileExclusionManager != null && myFileExclusionManager.isExcluded(file)) return true;
VirtualFile dir = file.isDirectory() ? file : file.getParent();
if (dir == null) return false;
DirectoryInfo info = getInfoForDirectory(dir);
if (info != null) return false;
if (myDirectoryIndex.isProjectExcludeRoot(dir)) return true;
VirtualFile parent = dir.getParent();
while (true) {
if (parent == null) return false;
DirectoryInfo parentInfo = getInfoForDirectory(parent);
if (parentInfo != null) return true;
if (myDirectoryIndex.isProjectExcludeRoot(parent)) return true;
parent = parent.getParent();
}
}
public boolean isContentSourceFile(@NotNull VirtualFile file) {
return !file.isDirectory()
&& !myFileTypeRegistry.isFileIgnored(file)
&& isInSourceContent(file);
}
@Override
@Nullable
public VirtualFileSystemEntry findRoot(
@NotNull String basePath, @NotNull NewVirtualFileSystem fs) {
if (basePath.isEmpty()) {
LOG.error("Invalid root, fs=" + fs);
return null;
}
String rootUrl = normalizeRootUrl(basePath, fs);
myRootsLock.readLock().lock();
try {
VirtualFileSystemEntry root = myRoots.get(rootUrl);
if (root != null) return root;
} finally {
myRootsLock.readLock().unlock();
}
final VirtualFileSystemEntry newRoot;
int rootId = FSRecords.findRootRecord(rootUrl);
VfsData.Segment segment = VfsData.getSegment(rootId, true);
VfsData.DirectoryData directoryData = new VfsData.DirectoryData();
if (fs instanceof ArchiveFileSystem) {
String parentPath =
basePath.substring(0, basePath.indexOf(ArchiveFileSystem.ARCHIVE_SEPARATOR));
VirtualFile parentFile = LocalFileSystem.getInstance().findFileByPath(parentPath);
if (parentFile == null) return null;
FileType type = FileTypeRegistry.getInstance().getFileTypeByFileName(parentFile.getName());
if (!(type instanceof ArchiveFileType)) return null;
newRoot = new ArchiveRoot(fs, rootId, segment, directoryData, parentFile);
} else {
newRoot = new FsRoot(fs, rootId, segment, directoryData, basePath);
}
FileAttributes attributes =
fs.getAttributes(
new StubVirtualFile() {
@NotNull
@Override
public String getPath() {
return newRoot.getPath();
}
@Nullable
@Override
public VirtualFile getParent() {
return null;
}
});
if (attributes == null || !attributes.isDirectory()) {
return null;
}
boolean mark = false;
myRootsLock.writeLock().lock();
try {
VirtualFileSystemEntry root = myRoots.get(rootUrl);
if (root != null) return root;
VfsData.initFile(rootId, segment, -1, directoryData);
mark = writeAttributesToRecord(rootId, 0, newRoot, fs, attributes);
myRoots.put(rootUrl, newRoot);
myRootsById.put(rootId, newRoot);
} finally {
myRootsLock.writeLock().unlock();
}
if (!mark && attributes.lastModified != FSRecords.getTimestamp(rootId)) {
newRoot.markDirtyRecursively();
}
LOG.assertTrue(
rootId == newRoot.getId(),
"root=" + newRoot + " expected=" + rootId + " actual=" + newRoot.getId());
return newRoot;
}
protected boolean isIgnored() {
final VirtualFile file = getVirtualFile();
if (file instanceof LightVirtualFile) return false;
if (myExclusionManager != null && myExclusionManager.isExcluded(file)) return true;
return FileTypeRegistry.getInstance().isFileIgnored(file);
}
private static boolean isIgnored(@NotNull VirtualFile dir) {
return FileTypeRegistry.getInstance().isFileIgnored(dir);
}