gatsby-config.js

const config = require("./data/SiteConfig");

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

module.exports = {
  pathPrefix: config.pathPrefix,
  siteMetadata: {
    siteUrl: config.siteUrl + pathPrefix,
  },
  plugins: [
    "gatsby-plugin-react-helmet",
    "gatsby-plugin-sass",
    {
      resolve: "gatsby-source-filesystem",
      options: {
        name: "posts",
        path: `${__dirname}/content/${config.blogPostDir}`
      }
    },
    {
      resolve: "gatsby-transformer-remark",
      options: {
        plugins: [
          {
            resolve: "gatsby-remark-images",
            options: {
              maxWidth: 1200
            }
          },
          {
            resolve: "gatsby-remark-responsive-iframe"
          },
          "gatsby-remark-prismjs",
          "gatsby-remark-copy-linked-files",
          "gatsby-remark-autolink-headers"
        ]
      }
    },
    {
      resolve: "gatsby-plugin-google-analytics",
      options: {
        trackingId: config.siteGATrackingID
      }
    },
    "gatsby-plugin-sharp",
    "gatsby-plugin-catch-links",
    "gatsby-plugin-sitemap",
    {
      resolve: "gatsby-plugin-manifest",
      options: {
        name: config.siteTitle,
        short_name: config.siteTitle,
        description: config.siteDescription,
        start_url: config.pathPrefix,
        background_color: "#e0e0e0",
        theme_color: "#c62828",
        display: "minimal-ui",
        icons: [
          {
            src: "/logos/logo-192.png",
            sizes: "192x192",
            type: "image/png"
          },
          {
            src: "/logos/logo-512.png",
            sizes: "512x512",
            type: "image/png"
          }
        ]
      }
    },
    "gatsby-plugin-offline",
  ]
};