gatsby-config.js

const config = require('./config');

require('dotenv').config({
  path: `.env.${process.env.NODE_ENV}`,
});

const pathPrefix = config.pathPrefix === '/' ? '' : config.pathPrefix;

module.exports = {
  pathPrefix: config.pathPrefix,
  siteMetadata: {
    title: `MasksNOW.org`,
    description: config.siteDescription,
    author: config.author,
    image: config.siteLogo,
    siteUrl: config.siteUrl + pathPrefix,
  },
  plugins: [
    'gatsby-plugin-styled-components',
    'gatsby-plugin-eslint',
    'gatsby-plugin-react-helmet',
    'gatsby-plugin-sass',
    {
      // keep as first gatsby-source-filesystem plugin for gatsby image support
      resolve: 'gatsby-source-filesystem',
      options: {
        path: `${__dirname}/static/img`,
        name: 'uploads',
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        path: `${__dirname}/src/img`,
        name: 'images',
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        path: `${__dirname}/src/pages`,
        name: 'pages',
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        path: `${__dirname}/content/pages`,
        name: 'info-pages',
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        path: `${__dirname}/content/patterns`,
        name: 'patterns',
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        path: `${__dirname}/content/resources`,
        name: 'resources',
      },
    },
    {
      resolve: 'gatsby-source-filesystem',
      options: {
        path: `${__dirname}/content/donate`,
        name: 'donate',
      },
    },
    'gatsby-plugin-sharp',
    'gatsby-transformer-sharp',
    {
      resolve: 'gatsby-transformer-remark',
      options: {
        plugins: [
          {
            resolve: 'gatsby-remark-embed-youtube',
            options: {
              width: 840,
              height: 473,
            },
          },
          'gatsby-remark-responsive-iframe',
          {
            resolve: 'gatsby-remark-relative-images',
            options: {
              name: 'uploads',
            },
          },
          {
            resolve: 'gatsby-remark-images',
            options: {
              // It's important to specify the maxWidth (in pixels) of
              // the content container as this plugin uses this as the
              // base for generating different widths of each image.
              maxWidth: 2048,
            },
          },
          {
            resolve: 'gatsby-remark-copy-linked-files',
            options: {
              destinationDir: 'static',
            },
          },
        ],
      },
    },
    {
      resolve: 'gatsby-plugin-netlify-cms',
      options: {
        modulePath: `${__dirname}/src/cms/cms.js`,
      },
    },
    'gatsby-plugin-catch-links',
    'gatsby-plugin-sitemap',
    {
      resolve: 'gatsby-plugin-robots-txt',
      options: {
        host: config.siteUrl + pathPrefix,
        sitemap: config.siteUrl + pathPrefix + 'sitemap.xml',
        env: {
          production: {
            policy: [{ userAgent: '*', allow: '/' }],
          },
          'branch-deploy': {
            policy: [{ userAgent: '*', disallow: ['/'] }],
            sitemap: null,
            host: null,
          },
          'deploy-preview': {
            policy: [{ userAgent: '*', disallow: ['/'] }],
            sitemap: null,
            host: null,
          },
        },
      },
    },
    {
      resolve: 'gatsby-plugin-manifest',
      options: {
        name: config.siteTitleAlt,
        short_name: config.siteTitleManifest,
        description: config.siteDescription,
        start_url: config.pathPrefix,
        background_color: config.backgroundColor,
        theme_color: config.themeColor,
        display: 'standalone',
        icon: config.manifestJPG,
      },
    },
    {
      resolve: 'gatsby-plugin-purgecss', // purges all unused/unreferenced css rules
      options: {
        develop: true, // Activates purging in npm run develop
        purgeOnly: ['/all.sass'], // applies purging only on the bulma css file
      },
    }, // must be after other CSS plugins
    {
      resolve: `gatsby-plugin-netlify`,
      options: {
        headers: {}, // option to add more headers. `Link` headers are transformed by the below criteria
        allPageHeaders: [
          'Access-Control-Allow-Origin: *',
          'X-Frame-Options: SAMEORIGIN',
        ], // option to add headers for all pages. `Link` headers are transformed by the below criteria
        mergeSecurityHeaders: false, // boolean to turn off the default security headers
        mergeLinkHeaders: false, // boolean to turn off the default gatsby js headers (disabled by default, until gzip is fixed for server push)
        mergeCachingHeaders: true, // boolean to turn off the default caching headers
        transformHeaders: (headers, path) => headers, // optional transform for manipulating headers under each path (e.g.sorting), etc.
      },
    }, // make sure to keep it last in the array
  ],
};