<?php

/*
 * Copyright 2012 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Interfaces with Subversion while running as a commit hook.
 */
class ArcanistSubversionHookAPI extends ArcanistHookAPI {

  protected $root;
  protected $transaction;
  protected $repository;

  public function __construct($root, $transaction, $repository) {
    $this->root        = $root;
    $this->transaction = $transaction;
    $this->repository  = $repository;
  }

  public function getCurrentFileData($path) {
    list($err, $file) = exec_manual(
      'svnlook cat --transaction %s %s %s',
      $this->transaction,
      $this->repository,
      $this->root . "/$path");

    return ($err? null : $file);
  }
}