#!/usr/bin/env node
// vim: ft=javascript

// Copyright 2011-2014, Tim Branyen @tbranyen 
// Dual licensed under the MIT and GPL licenses.
// Script to detect cursewords in commit messages and provide the offending
// commit sha's.
//
// Usage:
//
//     node git_profanity_check some/repo/.git
//
var git = require('../../');

var curses = ['put', 'curse', 'words', 'here'];
var path = './.git';
var branch = 'master';
var reCurse = new RegExp('\\b(?:' + curses.join('|') + ')\\b', 'gi');

// Default path is `.git`.
if (process.argv.length < 3) {
  console.log('No path passed as argument, defaulting to .git.');
}
// Otherwise defaults.
else {
  path = process.argv[2];

  // Set repo branch
  if (process.argv.length < 4) {
    console.log('No branch passed as argument, defaulting to master.');
  }
  else {
    branch = process.argv[3];
  }
}

// Open repository.
git.Repo.open(path, function(err, repo) {
  if (err) {
    throw new Error(err);
  }

  // Open branch, default to master.
  repo.getBranch(branch, function(err, branch) { 
    if (err) {
      throw new Error(err);
    }

    // Iterate history
    var history = branch.history();

    // Iterate over every commit message and test for words.
    history.on('commit', function(commit) {
      var message = commit.message();

      if (reCurse.test(message)) {
        console.log('Curse detected in commit', commit.sha()); 
        console.log('=> ', message);
        return;
      }
    });

    // Start history iteration.
    history.start();
  });
});