gatsby-config.js

const path = require('path')
const config = require('./data/siteConfig')

module.exports = {
  siteMetadata: {
    title: config.siteTitle,
    author: config.authorName,
    description: config.siteDescription,
    ...config,
  },
  pathPrefix: config.pathPrefix,
  plugins: [
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: 'posts',
        path: 'content/posts',
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: 'pages',
        path: 'content/pages',
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: 'images',
        path: 'content/images',
      },
    },
    {
      resolve: `gatsby-plugin-page-creator`,
      options: {
        path: path.join(__dirname, `src`, `pages`),
      },
    },
    {
      resolve: `gatsby-plugin-mdx`,
      options: {
        extensions: [`.mdx`, `.md`],
        defaultLayouts: {
          default: require.resolve('./src/templates/page.js'),
        },
        gatsbyRemarkPlugins: [
          {
            resolve: 'gatsby-remark-images',
            options: {
              maxWidth: 590,
              linkImagesToOriginal: false,
              withWebp: true,
            },
          },
          { resolve: 'gatsby-remark-prismjs' },
          { resolve: 'gatsby-remark-responsive-iframe' },
          { resolve: 'gatsby-remark-copy-linked-files' },
          { resolve: 'gatsby-remark-smartypants' },
          { resolve: 'gatsby-remark-autolink-headers' },
        ],
      },
    },
    // Reminder (https://github.com/gatsbyjs/gatsby/issues/15486#issuecomment-509405867)
    {
      resolve: `gatsby-transformer-remark`,
      options: {
        plugins: [`gatsby-remark-images`],
      },
    },
    `gatsby-transformer-sharp`,
    `gatsby-plugin-offline`,
    `gatsby-plugin-styled-components`,
    `gatsby-plugin-react-helmet`,
    `gatsby-plugin-sharp`,
    {
      resolve: `gatsby-plugin-google-analytics`,
      options: {
        trackingId: config.googleAnalyticsId,
      },
    },
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: config.siteTitle,
        short_name: config.siteTitle,
        start_url: config.pathPrefix,
        background_color: config.background_color,
        theme_color: config.theme_color,
        display: config.display,
        icon: config.icon,
      },
    },
    // https://www.gatsbyjs.org/docs/themes/converting-a-starter/#transpiling-your-theme-with-webpack
    {
      resolve: 'gatsby-plugin-compile-es6-packages',
      options: {
        modules: ['gatsby-starter-morning-dew'],
      },
    },
  ],
}