text: /*
   * Copyright 2017 Google Inc. All rights reserved.
   *
   * 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.
   */
  
  "use strict";
  /* eslint require-jsdoc: "off" */
  
  var cwd = process.cwd();
  var run = require(cwd + '/src/run');
  var logger = require(cwd + '/src/logger').getLogger();
  
  var repoPath;
  var currentRepo;
  var currentRepoPath;
  
  var gitPrettyConfig = [{
    c: '%H',
    p: 'hash'
  }, {
    c: '%h',
    p: 'abbrevHash'
  }, {
    c: '%t',
    p: 'abbrevTreeHash'
  }, {
    c: '%P',
    p: 'parentHashes'
  }, {
    c: '%an',
    p: 'authorName'
  }, {
    c: '%ae',
    p: 'authorEmail'
  }, {
    c: '%ai',
    p: 'authorDate'
  }, {
    c: '%ar',
    p: 'authorDateRel'
  }, {
    c: '%cn',
    p: 'committerName'
  }, {
    c: '%ce',
    p: 'committerEmail'
  }, {
    c: '%cd',
    p: 'committerDate'
  }, {
    c: '%cr',
    p: 'committerDateRel'
  }, {
    c: '%s',
    p: 'subject'
  }];
  
  function splitSpaces(data) {
    return data.split(" ").filter(function(s) {
      return s.length > 0;
    });
  }
  
  module.exports = {
    setRepoPath: function(path) {
      repoPath = path;
    },
    setRepo: function(repo) {
      currentRepo = repo;
      currentRepoPath = repoPath + '/' + currentRepo.name;
    },
    clone: function() {
      if (currentRepoPath === undefined) {
        logger.error('clone repository not set');
        return;
      }
      var args = ['clone', currentRepo.git.url, currentRepoPath];
      var cmdout = run.execSync('git', args, null);
      return cmdout;
    },
    fetch: function() {
      if (currentRepoPath === undefined) {
        logger.error('fetch repository not set');
        return;
      }
      var cmdout = run.execSync('git', ['fetch'], currentRepoPath);
      if (cmdout.err) {
        logger.error('cannot do git fetch', currentRepoPath);
        return;
      }
    },
    pull: function() {
      if (currentRepoPath === undefined) {
        logger.error('pull repository not set');
        return;
      }
      var cmdout = run.execSync('git', ['pull'], currentRepoPath);
      if (cmdout.err) {
        logger.error('cannot do git pull', currentRepoPath);
        return;
      }
    },
    repoResetHard: function(hash) {
      if (currentRepoPath === undefined) {
        logger.error('repoResetHard repository not set');
        return;
      }
      var cmdout = run.execSync('git', ['reset', '--hard', hash],
        currentRepoPath);
  
      if (cmdout.err) {
        logger.error('cannot do git reset --hard ', currentRepoPath, hash);
        return;
      }
  
      cmdout = run.execSync('git', ['log', '-n1', '--pretty=format:%H'],
        currentRepoPath);
      if (cmdout.err) {
        logger.error('cannot do git log -n1', currentRepoPath);
        return;
      }
      var topHash = cmdout.stdout;
      if (topHash !== hash) {
        logger.error('Error after syncing ', hash, topHash);
        return;
      }
      return;
    },
    repoResetHardPrevious: function(hash) {
      if (currentRepoPath === undefined) {
        logger.error('repoResetHardPrevious repository not set');
        return;
      }
      var cmdout = run.execSync('git', ['reset', '--hard', 'HEAD^'],
        currentRepoPath);
      if (cmdout.err) {
        logger.error('cannot do git reset --hard ', currentRepoPath, hash);
        return;
      }
      cmdout = run.execSync('git', ['log', '-n1', '--pretty=format:%H'],
        currentRepoPath);
      if (cmdout.err) {
        logger.error('cannot do git log -n1', currentRepoPath);
        return;
      }
      return cmdout.stdout;
    },
    getRemoteToT: function(branch) {
      if (currentRepoPath === undefined) {
        logger.error('getRemoteToT repository not set');
        return;
      }
      var cmdout = run.execSync('git', ['log', branch, '-n1',
        '--pretty=format:%H'
      ], currentRepoPath);
  
      if (cmdout.err) {
        logger.error('cannot do git log branch -n1 ', currentRepoPath, branch);
        return;
      }
      var tot = cmdout.stdout;
      return tot;
    },
    getRepoToT: function() {
      if (currentRepoPath === undefined) {
        logger.error('getRepoToT repository not set');
        return;
      }
      var cmdout = run.execSync('git', ['log', '-n1', '--pretty=format:%H'],
        currentRepoPath);
  
      if (cmdout.err) {
        logger.error('cannot do git log -n1 ', currentRepoPath);
        return;
      }
      var tot = cmdout.stdout;
      return tot;
    },
    getBuildId: function(patch) {
      if (currentRepoPath === undefined) {
        logger.error('getBuildId repository not set');
        return;
      }
      var cmdout = run.execSync('git', [
        'log', '--oneline', '--pretty=format:%h', patch
      ], currentRepoPath);
      var t = cmdout.stdout.split('\n');
      var buildId = t.length;
      return buildId;
    },
    getPatchInfo: function(patch) {
      if (currentRepoPath === undefined) {
        logger.error('getPatchInfo repository not set');
        return;
      }
  
      var l = [];
  
      var targ = '--pretty=@tagStart@';
  
      var ii;
      for (ii = 0; ii < gitPrettyConfig.length; ii++)
        targ += '@tagDelimiter@' + gitPrettyConfig[ii].c;
      targ += '@tagEnd@';
  
      var cmdout = run.execSync('git', ['log', patch, '-n1', targ],
        currentRepoPath);
  
      if (cmdout.err) {
        console.log('ERR', cmdout.code);
        return;
      }
      var stdout = cmdout.stdout;
      logger.debug('commits stdout', stdout);
  
      // get everything after tagt start
      var commits = stdout.split('@tagStart@');
  
      //
      if (commits.length === 1 && commits[0] === '') {
        commits.shift();
      }
      commits.shift();
      logger.debug('commits commits', commits);
  
      for (ii = 0; ii < commits.length; ii++) {
        var commit = commits[ii];
        logger.debug('onecommit', ii, commits.length, commit);
  
        // get everything beofre tag end everything before tag end
        var parts = commit.split('@tagEnd@\n');
        commit = parts[0].split('@tagDelimiter@');
  
        // delete first
        commit.shift();
  
        logger.debug('onecommit', commit);
  
        var entry = {};
        for (var jj = 0; jj < gitPrettyConfig.length; jj++) {
          if (gitPrettyConfig[jj].p === 'parentHashes') {
            var tsplit = splitSpaces(commit[jj]);
            entry[gitPrettyConfig[jj].p] = tsplit;
          } else
            entry[gitPrettyConfig[jj].p] = commit[jj];
        }
  
        // add buildId
        logger.debug('entry', entry);
  
        l.push(entry);
      }
      // console.log(l);
      return l;
    },
    getLog: function(branch, startCommit, endCommit) {
      if (currentRepoPath === undefined) {
        logger.error('getLog repository not set');
        return;
      }
  
      // get num of patchs to compute buildIds
      var cmdout = run.execSync('git', ['log', branch, '--oneline',
        '--pretty=format:%h'
      ], currentRepoPath);
  
      var t = cmdout.stdout.split('\n');
      var numPatches = t.length;
      logger.debug(cmdout, numPatches);
  
      var l = [];
  
      // Start constructing arguments
      var args = [];
      args.push('log');
      args.push(branch);
  
      if (endCommit !== undefined) {
        args.push(endCommit + '..' + startCommit);
      }
  
      var targ = '--pretty="@tagStart@';
      var ii;
      for (ii = 0; ii < gitPrettyConfig.length; ii++)
        targ += '@tagDelimiter@' + gitPrettyConfig[ii].c;
  
      targ += '@tagEnd@"';
      args.push(targ);
  
      cmdout = run.execSync('git', args, currentRepoPath);
      if (cmdout.err) {
        console.log('ERR', cmdout.code);
        return;
      }
      var stdout = cmdout.stdout;
      logger.debug('commits stdout', stdout);
  
      // get everything after tagt start
      var commits = stdout.split('@tagStart@');
      //
      if (commits.length === 1 && commits[0] === '') {
        commits.shift();
      }
      commits.shift();
      logger.debug('commits commits', commits);
  
      for (ii = 0; ii < commits.length; ii++) {
        var commit = commits[ii];
        logger.debug('onecommit', ii, commits.length, commit);
  
        // get everything beofre tag end everything before tag end
        var parts = commit.split('@tagEnd@\n');
        commit = parts[0].split('@tagDelimiter@');
  
        // delete first
        commit.shift();
  
        logger.debug('onecommit', commit);
  
        var entry = {};
        for (var jj = 0; jj < gitPrettyConfig.length; jj++) {
          if (gitPrettyConfig[jj].p === 'parentHashes') {
            var tsplit = splitSpaces(commit[jj]);
            entry[gitPrettyConfig[jj].p] = tsplit;
          } else
            entry[gitPrettyConfig[jj].p] = commit[jj];
        }
  
        // add buildId
        entry.buildId = numPatches - ii;
        logger.debug('entry', entry);
  
        l.push(entry);
      }
      return l;
    }
  };
  