gatsby-config.js

const {
  NODE_ENV,
  URL: NETLIFY_SITE_URL = 'https://www.razvanrosu.com',
  DEPLOY_PRIME_URL: NETLIFY_DEPLOY_URL = NETLIFY_SITE_URL,
  CONTEXT: NETLIFY_ENV = NODE_ENV,
} = process.env;
const isNetlifyProduction = NETLIFY_ENV === 'production';
const siteUrl = isNetlifyProduction ? NETLIFY_SITE_URL : NETLIFY_DEPLOY_URL;

module.exports = {
  pathPrefix: `/personal-website`,
  siteMetadata: {
    title: `Răzvan Roșu`,
    description: `My own little (web) world`,
    author: `Răzvan Roșu`,
    siteUrl
  },
  plugins: [
    `gatsby-plugin-postcss`,
    `gatsby-plugin-react-helmet`,
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `images`,
        path: `${__dirname}/src/images`,
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        name: `markdown`,
        path: `${__dirname}/src/markdown`,
      },
    },
    `gatsby-transformer-remark`,
    `gatsby-transformer-sharp`,
    `gatsby-plugin-sharp`,
    {
      resolve: `gatsby-plugin-manifest`,
      options: {
        name: `RR`,
        short_name: `starter`,
        start_url: `/`,
        background_color: `#C0392B`,
        theme_color: `#C0392B`,
        display: `minimal-ui`,
        icon: `src/images/rr.png`, // This path is relative to the root of the site.
      },
    },
    {
      resolve: `gatsby-plugin-advanced-sitemap`,
      options: {
        exclude: [
          `/dev-404-page`,
          `/404`,
          `/404.html`,
          `/offline-plugin-app-shell-fallback`,
          `/thank-you`,
        ],
      },
    },
    {
      resolve: 'gatsby-plugin-robots-txt',
      options: {
        resolveEnv: () => NETLIFY_ENV,
        env: {
          production: {
            policy: [{ userAgent: '*', disallow: ['/thank-you', '/404']}],
          },
          'branch-deploy': {
            policy: [{ userAgent: '*', disallow: ['/'] }],
            sitemap: null,
            host: null,
          },
          'deploy-preview': {
            policy: [{ userAgent: '*', disallow: ['/'] }],
            sitemap: null,
            host: null,
          },
        },
      },
    },
    // this (optional) plugin enables Progressive Web App + Offline functionality
    // To learn more, visit: https://gatsby.dev/offline
    // 'gatsby-plugin-offline',
  ],
}