cucumber/lib/cucumber/cli/argument_parser/path_expander.js

The official JavaScript implementation of Cucumber.

var fs     = require('fs');
var _      = require('underscore');
var walk = require('walkdir');

var PathExpander = {
  expandPathsWithRegexp: function expandPathsWithRegexp(paths, regexp) {
    var expandedPaths = [];
    paths.forEach(function (path) {
      var expandedPath = PathExpander.expandPathWithRegexp(path, regexp);
      expandedPaths    = expandedPaths.concat(expandedPath);
    });
    expandedPaths = _.uniq(expandedPaths);
    return expandedPaths;
  },

  expandPathWithRegexp: function expandPathWithRegexp(path, regexp) {
    var Cucumber = require('../../../cucumber');
    var matches = Cucumber.Cli.ArgumentParser.FEATURE_FILENAME_AND_LINENUM_REGEXP.exec(path);
    var lineNum = matches && matches[2];
    if (lineNum) {
      path = matches[1];
    }
    var realPath = fs.realpathSync(path);
    var stats    = fs.statSync(realPath);
    if (stats.isDirectory()) {
      var paths = PathExpander.expandDirectoryWithRegexp(realPath, regexp);
      return paths;
    }
    else {
      return [realPath];
    }
  },

  expandDirectoryWithRegexp: function expandDirectoryWithRegexp(directory, regexp) {
    var paths = [];
    var scannedPaths = walk.sync(directory);
    scannedPaths.forEach(function (path) {
      if (regexp.test(path))
        paths.push(path);
    });
    return paths;
  }
};
module.exports = PathExpander;