gatsby-config.js

require('dotenv').config()

const config = require('./config')
const queries = require('./src/utils/algolia')

const plugins = [
  'gatsby-plugin-sitemap',
  'gatsby-plugin-sharp',
  {
    resolve: `gatsby-plugin-layout`,
    options: {
      component: require.resolve(`./src/templates/docs.js`)
    }
  },
  'gatsby-plugin-emotion',
  'gatsby-plugin-remove-trailing-slashes',
  'gatsby-plugin-react-helmet',
  {
    resolve: 'gatsby-source-filesystem',
    options: {
      name: 'docs',
      path: `${__dirname}/content/`
    }
  },
  {
    resolve: 'gatsby-plugin-mdx',
    options: {
      gatsbyRemarkPlugins: [
        {
          resolve: 'gatsby-remark-images',
          options: {
            maxWidth: 1035,
            sizeByPixelDensity: true
          }
        },
        {
          resolve: 'gatsby-remark-copy-linked-files'
        }
      ],
      extensions: ['.mdx', '.md']
    }
  },
  {
    resolve: `gatsby-plugin-gtag`,
    options: {
      // your google analytics tracking id
      trackingId: config.gatsby.gaTrackingId,
      // Puts tracking script in the head instead of the body
      head: true,
      // enable ip anonymization
      anonymize: false
    }
  }
]

// check and add algolia
if (
  config.header.search &&
  config.header.search.enabled &&
  config.header.search.algoliaAppId &&
  config.header.search.algoliaAdminKey
) {
  plugins.push({
    resolve: `gatsby-plugin-algolia`,
    options: {
      appId: config.header.search.algoliaAppId, // algolia application id
      apiKey: config.header.search.algoliaAdminKey, // algolia admin key to index
      queries,
      chunkSize: 10000 // default: 1000
    }
  })
}

// check and add pwa functionality
if (config.pwa && config.pwa.enabled && config.pwa.manifest) {
  plugins.push({
    resolve: `gatsby-plugin-manifest`,
    options: { ...config.pwa.manifest }
  })
  plugins.push({
    resolve: 'gatsby-plugin-offline',
    options: {
      appendScript: require.resolve(`./src/custom-sw-code.js`)
    }
  })
} else {
  plugins.push('gatsby-plugin-remove-serviceworker')
}

module.exports = {
  pathPrefix: config.gatsby.pathPrefix,
  siteMetadata: {
    title: config.siteMetadata.title,
    description: config.siteMetadata.description,
    docsLocation: config.siteMetadata.docsLocation,
    ogImage: config.siteMetadata.ogImage,
    favicon: config.siteMetadata.favicon,
    logo: {
      link: config.header.logoLink ? config.header.logoLink : '/',
      image: config.header.logo
    }, // backwards compatible
    headerTitle: config.header.title,
    githubUrl: config.header.githubUrl,
    helpUrl: config.header.helpUrl,
    tweetText: config.header.tweetText,
    headerLinks: config.header.links,
    siteUrl: config.gatsby.siteUrl
  },
  plugins: plugins
}