gatsby-config.js

const { NODE_ENV, CONTEXT: NETLIFY_ENV = NODE_ENV } = process.env;

const metaConfig = require('./gatsby-meta-config');

module.exports = {
  siteMetadata: metaConfig,

  plugins: [
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `assets`,
        path: `${__dirname}/assets`,
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `content`,
        path: `${__dirname}/content`,
      },
    },
    {
      resolve: 'gatsby-plugin-robots-txt',
      options: {
        resolveEnv: () => NETLIFY_ENV,
        env: {
          production: {
            policy: [{ userAgent: '*' }],
          },
          'branch-deploy': {
            policy: [{ userAgent: '*', disallow: ['/'] }],
            sitemap: null,
            host: null,
          },
          'deploy-preview': {
            policy: [{ userAgent: '*', disallow: ['/'] }],
            sitemap: null,
            host: null,
          },
        },
      },
    },
    {
      resolve: `gatsby-plugin-google-analytics`,
      options: {
        trackingId: metaConfig.ga,
        head: true,
        anonymize: true,
      },
    },
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: metaConfig.title,
        short_name: metaConfig.title,
        description: metaConfig.description,
        lang: `en`,
        display: `standalone`,
        start_url: `/`,
        icon: `static/favicon.png`,
      },
    },
    {
      resolve: `gatsby-transformer-remark`,
      options: {
        plugins: [
          {
            resolve: `gatsby-remark-images`,
            options: {
              maxWidth: 720,
              linkImagesToOriginal: false,
              backgroundColor: 'transparent',
            },
          },
          {
            resolve: `gatsby-remark-table-of-contents`,
            options: {
              exclude: 'Table of Contents',
              tight: false,
              ordered: false,
              fromHeading: 2,
              toHeading: 6,
              className: 'table-of-contents',
            },
          },
          {
            resolve: `gatsby-remark-prismjs`,
            options: {
              classPrefix: 'language-',
              inlineCodeMarker: null,
              aliases: {},
              showLineNumbers: false,
              noInlineHighlight: false,
              languageExtensions: [
                {
                  language: 'superscript',
                  extend: 'javascript',
                  definition: {
                    superscript_types: /(SuperType)/,
                  },
                  insertBefore: {
                    function: {
                      superscript_keywords: /(superif|superelse)/,
                    },
                  },
                },
              ],
              prompt: {
                user: 'root',
                host: 'localhost',
                global: false,
              },
              escapeEntities: {},
            },
          },
          `gatsby-remark-autolink-headers`,
          `gatsby-remark-copy-linked-files`,
          `gatsby-remark-smartypants`,
        ],
      },
    },
    `gatsby-theme-material-ui`,
    `gatsby-transformer-sharp`,
    `gatsby-plugin-advanced-sitemap`,
    `gatsby-plugin-sharp`,
    `gatsby-plugin-image`,
    `gatsby-plugin-offline`,
    `gatsby-plugin-react-helmet`,
    `gatsby-plugin-sass`,
  ],
};