stylelint-no-mismatching-module-file/index.js

Warns or errors when using a top-level module name that does not match the file name.

var stylelint = require("stylelint");
var _ = require("lodash");

var ruleName = "tmi/no-mismatching-module-file"

module.exports = stylelint.createPlugin(ruleName, function (enabled) {
  return function (root, result) {
    var validOptions = stylelint.utils.validateOptions(result, ruleName, {
      actual: enabled,
      possible: [
        true,
        false
      ]
    })

    if (!validOptions) { return }

    /**
     * SUPER lazy. This checks to see if we're in the "modules" directory because these
     * rules shouldn't apply to any other directory. I might change this someday.
     * ...maybe.
     */
    var path = result.opts.from.split('/');
    if (path[path.length - 2] !== 'modules') { return }

    var fileName = result.opts.from.match(/_(.*)/g)[0].replace(/_/g, '.').replace(/\.[^/.]+$/g, '');
    var fileExt = result.opts.from.split('.').pop();
    var selectorFileName = fileName.slice(1);

    root.walkRules(function (statement) {
      if (
        statement.parent.type === 'root' &&
        _.values(statement.parent.indexes)[0] === 0 &&
        fileName !== statement.selector
      ) {
        stylelint.utils.report({
          ruleName: ruleName,
          result: result,
          node: statement,
          message: `Your selector does not match this module's file name. Change the "${statement.selector}" selector to "${fileName}" or rename _${selectorFileName}.${fileExt} to _${statement.selector.replace(/\./g, '')}.${fileExt}.`
        });
      }
    })
  }
})

module.exports.ruleName = ruleName