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1
 
 
var assert = require('assert');
var fs = require('fs');
var path = require('path');
var glob = require('glob');
var isAbsolutePath = require('path-is-absolute');
var minimatch = require('minimatch');
var resolve = require('resolve');
var ConfigFile = require('./config-file');
var Errors = require('./errors');
var File = require('./pug-file');
var utils = require('./utils');
 
var Linter = function () {
  this._basePath = '.';
  this._excludedFileMasks = ['node_modules/**'];
  this._excludedFileMatchers = [];
  this._fileExtensions = ['.pug', '.jade'];
};
 
Linter.prototype = {
  checkDirectory: function (directoryPath) {
    var errors = [];
 
    if (this._isFileExcluded(directoryPath)) {
      return [];
    }
 
    fs.readdirSync(directoryPath).forEach(function (file) {
      var filePath = directoryPath + '/' + file;
      var stat = fs.statSync(filePath);
 
      if (stat.isDirectory()) {
        errors = errors.concat(this.checkDirectory(filePath));
      } else if (this._fileExtensions.indexOf(path.extname(filePath)) !== -1) {
        errors = errors.concat(this.checkFile(filePath));
      }
    }, this);
 
    return errors;
  },
 
  checkFile: function (filePath) {
    /* istanbul ignore if */
    if (this._isFileExcluded(filePath)) {
      return [];
    }
 
    return this.checkString(fs.readFileSync(filePath, 'utf8'), filePath);
  },
 
  checkPath: function (filePath) {
    filePath = filePath.replace(/\/$/, '');
 
    if (!fs.existsSync(filePath)) {
      throw new Error('Path ' + filePath + ' was not found');
    }
 
    var stat = fs.statSync(filePath);
 
    if (stat.isDirectory()) {
      return this.checkDirectory(filePath);
    }
 
    return this.checkFile(filePath);
  },
 
  checkString: function (source, filename) {
    filename = filename || 'input';
 
    var file = this._createFile(filename, source);
 
    return this._checkFile(file);
  },
 
  configure: function (options) {
    this._configuredRules = [];
    this._ruleMasks = [path.join(__dirname, 'rules/*.js')];
 
    if (options) {
      this._extendConfiguration(options);
 
      if (options.hasOwnProperty('preset')) {
        throw new Error('Presets have been deprecated. See: https://github.com/pugjs/pug-lint#preset-deprecated');
      }
 
      if (options.hasOwnProperty('excludeFiles')) {
        assert(Array.isArray(options.excludeFiles), '"excludeFiles" option requires array value');
 
        this._excludedFileMasks = options.excludeFiles;
      }
 
      if (options.hasOwnProperty('additionalRules')) {
        assert(Array.isArray(options.additionalRules), '"additionalRules" option requires array value');
 
        this._ruleMasks = this._ruleMasks.concat(options.additionalRules);
      }
 
      this._loadExcludedFiles();
 
      this._ruleMasks.forEach(function (mask) {
        glob.sync(mask).forEach(function (file) {
          var Rule = require(path.resolve(file));
          var rule = new Rule();
          var name = rule.name;
 
          if (options.hasOwnProperty(name) && options[name] !== null) {
            if (rule.contradictions) {
              rule.contradictions.forEach(function (contradiction) {
                if (options.hasOwnProperty(contradiction) && options[contradiction] !== null) {
                  options[contradiction] = null;
                }
              });
            }
 
            rule.configure(options[name]);
 
            this._configuredRules.push(rule);
          }
        }, this);
      }, this);
    }
  },
 
  getConfiguredRules: function () {
    return this._configuredRules;
  },
 
  _checkFile: function (file) {
    var errors = new Errors(file);
    var firstToken;
 
    file.getParseErrors().forEach(function (parseError) {
      errors.addParseError(parseError);
    });
 
    firstToken = file.getFirstToken();
 
    if (!firstToken || firstToken && firstToken.type === 'eos') {
      return errors.getErrors();
    }
 
    this.getConfiguredRules().forEach(function (rule) {
      errors.setCurrentRule(rule.name);
 
      rule.lint(file, errors);
    });
 
    return errors.getErrors();
  },
 
  _createFile: function (filename, source) {
    return new File(filename, source);
  },
 
  _extendConfiguration: function (options) {
    if (options.hasOwnProperty('extends')) {
      var configPath = this._resolveExtendsFile(options.extends);
      var configOptions = ConfigFile.loadFromFile(configPath);
 
      Object.keys(configOptions).forEach(function (key) {
        if (!options.hasOwnProperty(key)) {
          options[key] = configOptions[key];
        }
      });
    }
 
    return options;
  },
 
  _isFileExcluded: function (filePath) {
    filePath = path.resolve(filePath);
 
    return this._excludedFileMatchers.some(function (matcher) {
      return matcher.match(filePath);
    });
  },
 
  _loadExcludedFiles: function () {
    this._excludedFileMatchers = this._excludedFileMasks.map(function (fileMask) {
      return new minimatch.Minimatch(path.resolve(this._basePath, fileMask), {
        dot: true
      });
    }, this);
  },
 
  _resolveExtendsFile: function (filePath) {
    if (isAbsolutePath(filePath) || !/\w|@/.test(filePath.charAt(0))) {
      filePath = path.resolve(this._basePath, filePath);
 
      if (!fs.existsSync(filePath)) {
        throw new Error('Cannot find configuration file "' + filePath + '" to extend');
      }
    } else {
      var packageName = utils.normalizePackageName(filePath, 'pug-lint-config');
 
      try {
        filePath = resolve.sync(packageName);
      } catch (err) {
        throw new Error('Cannot find module "' + packageName + '" to extend');
      }
    }
 
    return filePath;
  }
};
 
module.exports = Linter;