Esempio n. 1
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 /**
  * Unlock this file and abort this change.
  *
  * <p>The temporary file (if created) is deleted before returning.
  */
 public void unlock() {
   final LockFile tmp = myLock;
   if (tmp != null) {
     myLock = null;
     tmp.unlock();
   }
 }
Esempio n. 2
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  /**
   * Save the configuration as a Git text style configuration file.
   *
   * <p><b>Warning:</b> Although this method uses the traditional Git file locking approach to
   * protect against concurrent writes of the configuration file, it does not ensure that the file
   * has not been modified since the last read, which means updates performed by other objects
   * accessing the same backing file may be lost.
   *
   * @throws IOException the file could not be written.
   */
  public void save() throws IOException {
    final byte[] out;
    final String text = toText();
    if (utf8Bom) {
      final ByteArrayOutputStream bos = new ByteArrayOutputStream();
      bos.write(0xEF);
      bos.write(0xBB);
      bos.write(0xBF);
      bos.write(text.getBytes(RawParseUtils.UTF8_CHARSET.name()));
      out = bos.toByteArray();
    } else {
      out = Constants.encode(text);
    }

    final LockFile lf = new LockFile(getFile(), fs);
    if (!lf.lock()) throw new LockFailedException(getFile());
    try {
      lf.setNeedSnapshot(true);
      lf.write(out);
      if (!lf.commit())
        throw new IOException(MessageFormat.format(JGitText.get().cannotCommitWriteTo, getFile()));
    } finally {
      lf.unlock();
    }
    snapshot = lf.getCommitSnapshot();
    hash = hash(out);
    // notify the listeners
    fireConfigChangedEvent();
  }
Esempio n. 3
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 /**
  * Write the entry records from memory to disk.
  *
  * <p>The cache must be locked first by calling {@link #lock()} and receiving true as the return
  * value. Applications are encouraged to lock the index, then invoke {@link #read()} to ensure the
  * in-memory data is current, prior to updating the in-memory entries.
  *
  * <p>Once written the lock is closed and must be either committed with {@link #commit()} or
  * rolled back with {@link #unlock()}.
  *
  * @throws IOException the output file could not be created. The caller no longer holds the lock.
  */
 public void write() throws IOException {
   final LockFile tmp = myLock;
   requireLocked(tmp);
   try {
     writeTo(new SafeBufferedOutputStream(tmp.getOutputStream()));
   } catch (IOException err) {
     tmp.unlock();
     throw err;
   } catch (RuntimeException err) {
     tmp.unlock();
     throw err;
   } catch (Error err) {
     tmp.unlock();
     throw err;
   }
 }