@flexis/favicons/lib/stream.js

A tool for generating icons for the modern web.

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var _JSON$stringify = require('@babel/runtime-corejs3/core-js-stable/json/stringify');
var _asyncIterator = require('@babel/runtime-corejs3/helpers/asyncIterator');
var os = require('os');
var Vinyl = require('vinyl');
var through = require('through2-concurrent');
var chalk = require('chalk');
var FaviconsGenerator = require('../');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var _JSON$stringify__default = /*#__PURE__*/_interopDefaultLegacy(_JSON$stringify);
var _asyncIterator__default = /*#__PURE__*/_interopDefaultLegacy(_asyncIterator);
var Vinyl__default = /*#__PURE__*/_interopDefaultLegacy(Vinyl);
var through__default = /*#__PURE__*/_interopDefaultLegacy(through);
var chalk__default = /*#__PURE__*/_interopDefaultLegacy(chalk);
var FaviconsGenerator__default = /*#__PURE__*/_interopDefaultLegacy(FaviconsGenerator);

const throughOptions = {
  maxConcurrency: os.cpus().length
};

function toVinyl(source) {
  return Vinyl__default['default'].isVinyl(source) ? source : source.isBuffer && source.isStream && source.isNull ? new Vinyl__default['default'](source) : source;
}

function log(verbose, ...message) {
  if (verbose) {
    console.log(...message);
  }
}

function plugin({
  headers,
  background,
  verbose,
  ...options
} = {}) {
  log(verbose, chalk__default['default'].blue('\n> Start\n'));
  const favicons = new FaviconsGenerator__default['default'](background ? { ...options,
    manifest: { ...options.manifest,
      background_color: background
    }
  } : options);
  const sources = [];

  function each(file, _, next) {
    if (file.isNull() || file.isStream()) {
      next(null, file);
      return;
    }

    try {
      sources.push(toVinyl(file));
      next();
    } catch (err) {
      next(err);
    }
  }

  async function flush(done) {
    try {
      const icons = favicons.generateIcons(sources);
      log(verbose, chalk__default['default'].blue('\n> Icons:\n'));
      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;

      var _iteratorError;

      try {
        for (var _iterator = _asyncIterator__default['default'](icons), _step, _value; _step = await _iterator.next(), _iteratorNormalCompletion = _step.done, _value = await _step.value, !_iteratorNormalCompletion; _iteratorNormalCompletion = true) {
          const icon = _value;
          this.push(icon);
          log(verbose, chalk__default['default'].yellow(icon.basename));
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return != null) {
            await _iterator.return();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }

      if (headers) {
        const htmlHeaders = favicons.generateHtmlHeaders(headers === true ? {} : headers);
        this.push(new Vinyl__default['default']({
          contents: Buffer.from(`${FaviconsGenerator.getHtmlHeadersMarkup(htmlHeaders)}\n`),
          path: 'favicons.html'
        }));
        log(verbose, `${chalk__default['default'].blue('\n> HTML Headers:')} ${chalk__default['default'].yellow('favicons.html')}\n`);
      }

      if (options.manifest) {
        const manifest = favicons.generateManifset();
        this.push(new Vinyl__default['default']({
          contents: Buffer.from(`${_JSON$stringify__default['default'](manifest, null, '  ')}\n`),
          path: 'manifest.json'
        }));
        log(verbose, `${chalk__default['default'].blue('\n> Web Manifest:')} ${chalk__default['default'].yellow('manifest.json')}\n`);
      }

      done();
    } catch (err) {
      done(err);
    }
  }

  return through__default['default'].obj(throughOptions, each, flush);
}

exports.default = plugin;
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