mechanism-markdown/index.js

Markdown-to-HTML plugin for Mechanism

"use strict";

var fs = require("fs");
var path = require("path");
var markdownit = require("markdown-it");

function handler(opt, opt2, cb) {

  if (typeof opt2 === "function") {
    cb = opt2;
    opt2 = {};
  };

  opt = opt || {};
  opt2 = opt2 || {};

  function dump(error) {
    error.plugin = "mechanism-markdown";
    error.opt = opt;
    error.opt2 = opt2;
    return error;
  };

  var sources = opt.sources || [];
  var targets = opt.targets || [];
  var mkdirp = opt.shares.mkdirp;

  if (sources.length !== 1) return cb(dump(
    new Error("One source is required")
  ));

  if (targets.length !== 1) return cb(dump(
    new Error("One target is required")
  ));

  fs.readFile(sources[0], function(error, md) {

    if (error) return cb(dump(error));

    var renderer = new markdownit();
    var html = renderer.render(md.toString());

    mkdirp(path.dirname(targets[0]), function(error) {
      if (error) return cb(dump(error));
      fs.writeFile(targets[0], html, function(error) {
        if (error) return cb(dump(error));
        return cb();
      });
    });

  });

};

module.exports = function(opt2) {
  return {
    handler: function(opt, cb) {
      handler(opt, opt2, cb);
    }
  };
};