Java Code Examples for com.intellij.openapi.vfs.VirtualFile#getFileSystem()

void scheduleCreation(@Nonnull VirtualFile parent,
                      @Nonnull String childName,
                      @Nonnull FileAttributes attributes,
                      @Nullable String symlinkTarget,
                      @Nonnull ThrowableRunnable<RefreshWorker.RefreshCancelledException> checkCanceled) throws RefreshWorker.RefreshCancelledException {
  if (LOG.isTraceEnabled()) LOG.trace("create parent=" + parent + " name=" + childName + " attr=" + attributes);
  ChildInfo[] children = null;
  if (attributes.isDirectory() && parent.getFileSystem() instanceof LocalFileSystem && !attributes.isSymLink()) {
    try {
      Path child = Paths.get(parent.getPath(), childName);
      if (shouldScanDirectory(parent, child, childName)) {
        Path[] relevantExcluded = ContainerUtil.mapNotNull(ProjectManagerEx.getInstanceEx().getAllExcludedUrls(), url -> {
          Path path = Paths.get(VirtualFileManager.extractPath(url));
          return path.startsWith(child) ? path : null;
        }, new Path[0]);
        children = scanChildren(child, relevantExcluded, checkCanceled);
      }
    }
    catch (InvalidPathException ignored) {
      // Paths.get() throws sometimes
    }
  }
  VFileCreateEvent event = new VFileCreateEvent(null, parent, childName, attributes.isDirectory(), attributes, symlinkTarget, true, children);
  myEvents.add(event);
}
 

@Nullable
public static List<File> asFileList(final PsiElement[] elements) {
  final List<File> result = new ArrayList<>();
  for (PsiElement element : elements) {
    final PsiFileSystemItem psiFile;
    if (element instanceof PsiFileSystemItem) {
      psiFile = (PsiFileSystemItem)element;
    }
    else if (element instanceof PsiDirectoryContainer) {
      final PsiDirectory[] directories = ((PsiDirectoryContainer)element).getDirectories();
      psiFile = directories[0];
    }
    else {
      psiFile = element.getContainingFile();
    }
    if (psiFile != null) {
      VirtualFile vFile = psiFile.getVirtualFile();
      if (vFile != null && vFile.getFileSystem() instanceof LocalFileSystem) {
        result.add(new File(vFile.getPath()));
      }
    }
  }
  return result.isEmpty() ? null : result;
}
 

@Nonnull
@Override
public CellAppearanceEx forVirtualFile(@Nonnull final VirtualFile file) {
  if (!file.isValid()) {
    return forInvalidUrl(file.getPresentableUrl());
  }

  final VirtualFileSystem fileSystem = file.getFileSystem();
  if (fileSystem instanceof ArchiveFileSystem) {
    return new JarSubfileCellAppearance(file);
  }
  if (fileSystem instanceof HttpFileSystem) {
    return new HttpUrlCellAppearance(file);
  }
  if (file.isDirectory()) {
    return SimpleTextCellAppearance.regular(file.getPresentableUrl(), AllIcons.Nodes.Folder);
  }
  return new ValidFileCellAppearance(file);
}
 

@Nullable
private static FileElement getFileElementFor(@Nonnull VirtualFile file) {
  VirtualFile selectFile;

  if ((file.getFileSystem() instanceof ArchiveFileSystem) && file.getParent() == null) {
    selectFile = ArchiveVfsUtil.getVirtualFileForJar(file);
    if (selectFile == null) {
      return null;
    }
  }
  else {
    selectFile = file;
  }

  return new FileElement(selectFile, selectFile.getName());
}
 

@Nullable
public static List<String> getHttpRoots(final String[] roots, String relPath) {
  final ArrayList<String> result = new ArrayList<String>();
  for (String root : roots) {
    final VirtualFile virtualFile = VirtualFileManager.getInstance().findFileByUrl(root);
    if (virtualFile != null) {
      if (virtualFile.getFileSystem() instanceof HttpFileSystem) {
        String url = virtualFile.getUrl();
        if (!url.endsWith("/")) url += "/";
        result.add(url + relPath);
      }
      else {
        VirtualFile file = virtualFile.findFileByRelativePath(relPath);
        if (file != null) result.add(file.getUrl());
      }
    }
  }

  return result.isEmpty() ? null : result;
}
 

@Override
public boolean contains(@Nonnull VirtualFile file) {
  final PsiDirectory value = getValue();
  if (value == null) {
    return false;
  }

  VirtualFile directory = value.getVirtualFile();
  if (directory.getFileSystem() instanceof LocalFileSystem) {
    file = PathUtil.getLocalFile(file);
  }

  if (!VfsUtilCore.isAncestor(directory, file, false)) {
    return false;
  }

  return !FileTypeRegistry.getInstance().isFileIgnored(file);
}
 

/**
 * Return original file from local system, when file is mirror in archive file system
 */
@Nullable
public static VirtualFile getVirtualFileForArchive(@Nullable VirtualFile virtualFile) {
  if (virtualFile == null || !virtualFile.isValid()) {
    return null;
  }

  if (virtualFile.getFileSystem() instanceof ArchiveFileSystem) {
    return ((ArchiveFileSystem)virtualFile.getFileSystem()).getLocalVirtualFileFor(virtualFile);
  }
  return null;
}
 

@Nonnull
public static VirtualFile getLocalFile(@Nonnull VirtualFile file) {
  if (!file.isValid()) {
    return file;
  }
  if (file.getFileSystem() instanceof LocalFileProvider) {
    final VirtualFile localFile = ((LocalFileProvider)file.getFileSystem()).getLocalVirtualFileFor(file);
    if (localFile != null) {
      return localFile;
    }
  }
  return file;
}
 

public static String displayUrlRelativeToProject(@Nonnull VirtualFile file,
                                                 @Nonnull String url,
                                                 @Nonnull Project project,
                                                 boolean includeFilePath,
                                                 boolean keepModuleAlwaysOnTheLeft) {
  final VirtualFile baseDir = project.getBaseDir();
  if (baseDir != null && includeFilePath) {
    //noinspection ConstantConditions
    final String projectHomeUrl = baseDir.getPresentableUrl();
    if (url.startsWith(projectHomeUrl)) {
      url = "..." + url.substring(projectHomeUrl.length());
    }
  }

  if (SystemInfo.isMac && file.getFileSystem() instanceof LocalFileProvider) {
    final VirtualFile fileForJar = ((LocalFileProvider)file.getFileSystem()).getLocalVirtualFileFor(file);
    if (fileForJar != null) {
      final OrderEntry libraryEntry = LibraryUtil.findLibraryEntry(file, project);
      if (libraryEntry != null) {
        if (libraryEntry instanceof ModuleExtensionWithSdkOrderEntry) {
          url = url + " - [" + ((ModuleExtensionWithSdkOrderEntry)libraryEntry).getSdkName() + "]";
        }
        else {
          url = url + " - [" + libraryEntry.getPresentableName() + "]";
        }
      }
      else {
        url = url + " - [" + fileForJar.getName() + "]";
      }
    }
  }

  final Module module = ModuleUtilCore.findModuleForFile(file, project);
  if (module == null) return url;
  return !keepModuleAlwaysOnTheLeft && SystemInfo.isMac ?
         url + " - [" + module.getName() + "]" :
         "[" + module.getName() + "] - " + url;
}
 

private static Image getIconForUrl(final String url, final boolean isValid, final boolean isJarDirectory) {
  final Image icon;
  if (isValid) {
    VirtualFile presentableFile;
    if (isArchiveFileRoot(url)) {
      presentableFile = LocalFileSystem.getInstance().findFileByPath(getPresentablePath(url));
    }
    else {
      presentableFile = VirtualFileManager.getInstance().findFileByUrl(url);
    }
    if (presentableFile != null && presentableFile.isValid()) {
      if (presentableFile.getFileSystem() instanceof HttpFileSystem) {
        icon = AllIcons.Nodes.PpWeb;
      }
      else {
        if (presentableFile.isDirectory()) {
          if (isJarDirectory) {
            icon = AllIcons.Nodes.JarDirectory;
          }
          else {
            icon = AllIcons.Nodes.TreeClosed;
          }
        }
        else {
          icon = IconUtilEx.getIcon(presentableFile, 0, null);
        }
      }
    }
    else {
      icon = AllIcons.Nodes.PpInvalid;
    }
  }
  else {
    icon = AllIcons.Nodes.PpInvalid;
  }
  return icon;
}
 

protected AbstractFileViewProvider(@Nonnull PsiManager manager, @Nonnull VirtualFile virtualFile, boolean eventSystemEnabled) {
  myManager = (PsiManagerEx)manager;
  myVirtualFile = virtualFile;
  myEventSystemEnabled = eventSystemEnabled;
  setContent(new VirtualFileContent());
  myPhysical = isEventSystemEnabled() && !(virtualFile instanceof LightVirtualFile) && !(virtualFile.getFileSystem() instanceof NonPhysicalFileSystem);
  virtualFile.putUserData(FREE_THREADED, isFreeThreaded(this));
  if (virtualFile instanceof VirtualFileWindow && !(this instanceof FreeThreadedFileViewProvider) && !isFreeThreaded(this)) {
    throw new IllegalArgumentException("Must not create " + getClass() + " for injected file " + virtualFile + "; InjectedFileViewProvider must be used instead");
  }
}
 

@Override
public FileStatus getStatus(@Nonnull final VirtualFile file) {
  if (file.getFileSystem() instanceof NonPhysicalFileSystem) {
    return FileStatus.SUPPRESSED;  // do not leak light files via cache
  }

  FileStatus status = getCachedStatus(file);
  if (status == null || status == FileStatusNull.INSTANCE) {
    status = calcStatus(file);
    cacheChangedFileStatus(file, status);
  }

  return status;
}
 

/**
 * Starts watching the specified file, which was added before.
 *
 * @param file      a file to watch
 * @param recursive {@code true} if a file should be considered as root
 * @return an object that allows to stop watching the specified file
 */
protected Object watch(VirtualFile file, boolean recursive) {
  VirtualFileSystem fs = file.getFileSystem();
  if (fs instanceof LocalFileSystem) {
    return LocalFileSystem.getInstance().addRootToWatch(file.getPath(), recursive);
  }
  return null;
}
 

@Nullable
public static String findRelativeFilePath(PsiFile base, PsiFile targetFile) {
    PsiFile currentFile = BashPsiUtils.findFileContext(base);
    VirtualFile baseVirtualFile = currentFile.getVirtualFile();
    if (!(baseVirtualFile.getFileSystem() instanceof LocalFileSystem)) {
        throw new IncorrectOperationException("Can not rename file refeferences in non-local files");
    }

    VirtualFile targetVirtualFile = BashPsiUtils.findFileContext(targetFile).getVirtualFile();
    if (!(targetVirtualFile.getFileSystem() instanceof LocalFileSystem)) {
        throw new IncorrectOperationException("Can not bind to non-local files");
    }

    VirtualFile baseParent = baseVirtualFile.getParent();
    VirtualFile targetParent = targetVirtualFile.getParent();
    if (baseParent == null || targetParent == null) {
        throw new IllegalStateException("parent directories not found");
    }

    char separator = '/';

    String baseDirPath = ensureEnds(baseParent.getPath(), separator);
    String targetDirPath = ensureEnds(targetParent.getPath(), separator);

    String targetRelativePath = FileUtilRt.getRelativePath(baseDirPath, targetDirPath, separator, true);
    if (targetRelativePath == null) {
        return null;
    }

    if (".".equals(targetRelativePath)) {
        //same parent dir
        return targetVirtualFile.getName();
    }

    return ensureEnds(targetRelativePath, separator) + targetVirtualFile.getName();
}
 

@Override
@Nonnull
public PsiFile copyFileFrom(@Nonnull String newName, @Nonnull PsiFile originalFile) throws IncorrectOperationException {
  checkCreateFile(newName);

  final Document document = PsiDocumentManager.getInstance(getProject()).getDocument(originalFile);
  if (document != null) {
    FileDocumentManager.getInstance().saveDocument(document);
  }

  final VirtualFile parent = getVirtualFile();
  try {
    final VirtualFile vFile = originalFile.getVirtualFile();
    if (vFile == null) throw new IncorrectOperationException("Cannot copy nonphysical file");
    VirtualFile copyVFile;
    if (parent.getFileSystem() == vFile.getFileSystem()) {
      copyVFile = vFile.copy(this, parent, newName);
    }
    else if (vFile instanceof LightVirtualFile) {
      copyVFile = parent.createChildData(this, newName);
      copyVFile.setBinaryContent(originalFile.getText().getBytes(copyVFile.getCharset()));
    }
    else {
      copyVFile = VfsUtilCore.copyFile(this, vFile, parent, newName);
    }
    LOG.assertTrue(copyVFile != null, "File was not copied: " + vFile);
    DumbService.getInstance(getProject()).completeJustSubmittedTasks();
    final PsiFile copyPsi = myManager.findFile(copyVFile);
    if (copyPsi == null) {
      LOG.error("Could not find file '" + copyVFile + "' after copying '" + vFile + "'");
    }
    updateAddedFile(copyPsi);
    return copyPsi;
  }
  catch (IOException e) {
    throw new IncorrectOperationException(e);
  }
}
 

private static void collectAndShowDuplicates(final Project project) {
  final ProgressIndicator indicator = ProgressManager.getInstance().getProgressIndicator();
  if (indicator != null && !indicator.isCanceled()) {
    indicator.setText("Collecting project images...");
    indicator.setIndeterminate(false);
    final List<VirtualFile> images = new ArrayList<VirtualFile>();
    for (String ext : IMAGE_EXTENSIONS) {
      images.addAll(FilenameIndex.getAllFilesByExt(project, ext));
    }

    final Map<Long, Set<VirtualFile>> duplicates = new HashMap<Long, Set<VirtualFile>>();
    final Map<Long, VirtualFile> all = new HashMap<Long, VirtualFile>();
    for (int i = 0; i < images.size(); i++) {
      indicator.setFraction((double)(i + 1) / (double)images.size());
      final VirtualFile file = images.get(i);
      if (!(file.getFileSystem() instanceof LocalFileSystem)) continue;
      final long length = file.getLength();
      if (all.containsKey(length)) {
        if (!duplicates.containsKey(length)) {
          final HashSet<VirtualFile> files = new HashSet<VirtualFile>();
          files.add(all.get(length));
          duplicates.put(length, files);
        }
        duplicates.get(length).add(file);
      } else {
        all.put(length, file);
      }
      indicator.checkCanceled();
    }
    showResults(project, images, duplicates, all);
  }
}
 

private static void fileChanged(@NotNull final Project project, @NotNull final VirtualFile file) {
  if (!BUILD_FILE_NAME.equals(file.getName())) {
    return;
  }
  if (LocalFileSystem.getInstance() != file.getFileSystem() && !ApplicationManager.getApplication().isUnitTestMode()) {
    return;
  }
  if (!VfsUtilCore.isAncestor(project.getBaseDir(), file, true)) {
    return;
  }
  getInstance(project).scheduleUpdate();
}
 

private static boolean isArchiveFileSystem(VirtualFile file) {
  return file.getFileSystem() instanceof ArchiveFileSystem;
}
 

@SuppressWarnings({"ConstantConditions"})
public ArchiveFileDiffElement(@Nonnull VirtualFile file) {
  super(file.getFileSystem() instanceof ArchiveFileSystem ? file : ArchiveVfsUtil.getArchiveRootForLocalFile(file));
}
 

@Nonnull
public static String calcRelativeToProjectPath(@Nonnull final VirtualFile file,
                                               @Nullable final Project project,
                                               final boolean includeFilePath,
                                               final boolean includeUniqueFilePath,
                                               final boolean keepModuleAlwaysOnTheLeft) {
  if (file instanceof VirtualFilePathWrapper) {
    return includeFilePath ? ((VirtualFilePathWrapper)file).getPresentablePath() : file.getName();
  }
  String url;
  if (includeFilePath) {
    url = file.getPresentableUrl();
  }
  else if (includeUniqueFilePath) {
    url = UniqueVFilePathBuilder.getInstance().getUniqueVirtualFilePath(project, file);
  }
  else {
    url = file.getName();
  }
  if (project == null) {
    return url;
  }
  else {
    final VirtualFile baseDir = project.getBaseDir();
    if (baseDir != null && includeFilePath) {
      //noinspection ConstantConditions
      final String projectHomeUrl = baseDir.getPresentableUrl();
      if (url.startsWith(projectHomeUrl)) {
        url = "..." + url.substring(projectHomeUrl.length());
      }
    }

    if (SystemInfo.isMac && file.getFileSystem() instanceof ArchiveFileSystem) {
      final VirtualFile fileForJar = ((ArchiveFileSystem)file.getFileSystem()).getLocalVirtualFileFor(file);
      if (fileForJar != null) {
        final OrderEntry libraryEntry = LibraryUtil.findLibraryEntry(file, project);
        if (libraryEntry != null) {
          if (libraryEntry instanceof ModuleExtensionWithSdkOrderEntry) {
            url = url + " - [" + ((ModuleExtensionWithSdkOrderEntry)libraryEntry).getSdkName() + "]";
          }
          else {
            url = url + " - [" + libraryEntry.getPresentableName() + "]";
          }
        }
        else {
          url = url + " - [" + fileForJar.getName() + "]";
        }
      }
    }

    final Module module = ModuleUtil.findModuleForFile(file, project);
    if (module == null) return url;
    return !keepModuleAlwaysOnTheLeft && SystemInfo.isMac ? url + " - [" + module.getName() + "]" : "[" + module.getName() + "] - " + url;
  }
}