@mapbox/batfish/dist/node/build-html.js

The React-powered static-site generator you didn't know you wanted

//      
'use strict';

const _ = require('lodash');
const path = require('path');
const fs = require('fs');
const pTry = require('p-try');
const joinUrlParts = require('./join-url-parts');
const errorTypes = require('./error-types');
const wrapError = require('./wrap-error');
const UglifyJs = require('uglify-js');
const getWebpackAssetAbsolutePath = require('./get-webpack-asset-absolute-path');

// We need to define this type because Flow can't understand the non-literal
// require that pulls in static-render-pages.js below.
                                          
                       
   
                           
                       
    
         
                 
                   

function buildHtml(
  batfishConfig                      ,
  cssFilename         
)                {
  return pTry(() => {
    const assetsDirectory = path.join(
      batfishConfig.outputDirectory,
      batfishConfig.publicAssetsPath
    );

    // This file reading is synced to make scoping easier, and with so few
    // files doesn't matter for performance.
    const rawAssets = fs.readFileSync(
      path.join(assetsDirectory, 'assets.json'),
      'utf8'
    );
    const assets   
                               
                          
                            
      = Object.freeze(JSON.parse(rawAssets));
    const manifestJs = fs.readFileSync(
      getWebpackAssetAbsolutePath(batfishConfig, assets.manifest.js),
      'utf8'
    );

    const uglified = UglifyJs.minify(manifestJs);
    if (uglified.error) throw uglified.error;
    const uglifiedManifestJs         = uglified.code;

    let cssUrl;
    if (!_.isEmpty(batfishConfig.stylesheets) && cssFilename) {
      cssUrl = joinUrlParts(
        batfishConfig.siteBasePath,
        batfishConfig.publicAssetsPath,
        path.basename(cssFilename)
      );
    }

    try {
      const staticRenderPages                            = require(path.join(
        assetsDirectory,
        'static-render-pages.js'
      )).default;
      return staticRenderPages(
        batfishConfig,
        assets,
        uglifiedManifestJs,
        cssUrl
      ).catch((error) => {
        throw wrapError(error, errorTypes.WebpackNodeExecutionError);
      });
    } catch (requireError) {
      throw wrapError(requireError, errorTypes.WebpackNodeParseError);
    }
  });
}

module.exports = buildHtml;