gatsby-config.js

const ipfsPrefix = process.argv.find(val => val === '--prefix-paths')

// Normal build for sites served with nginx or Apache.
const normalConfig = [
  'gatsby-plugin-react-helmet',
  {
    resolve: 'gatsby-source-filesystem',
    options: {
      // start_url: '/',
      name: 'images',
      path: `${__dirname.toString()}/src/images`
    }
  },
  'gatsby-transformer-sharp',
  'gatsby-plugin-sharp',
  'gatsby-plugin-image',
  {
    resolve: 'gatsby-plugin-manifest',
    options: {
      name: 'gatsby-starter-default',
      short_name: 'starter',
      start_url: '/',
      background_color: '#663399',
      theme_color: '#663399',
      display: 'minimal-ui',
      // icon: 'src/images/gatsby-icon.png' // This path is relative to the root of the site.
      icons: [
        {
          src: 'src/images/gatsby-icon.png',
          sizes: '192x192',
          type: 'image/png'
        }
      ] // Add or remove icon sizes as desired
    }
  }

  // this (optional) plugin enables Progressive Web App + Offline functionality
  // To learn more, visit: https://gatsby.dev/offline
  // `gatsby-plugin-offline`,
]

// Building for deployment over IPFS or with UncensorablePublishing.com tools.
const ipfsConfig = [
  '@chris.troutner/gatsby-plugin-ipfs',
  'gatsby-plugin-react-helmet',
  {
    resolve: 'gatsby-source-filesystem',
    options: {
      start_url: '__GATSBY_IPFS_PATH_PREFIX__',
      name: 'images',
      path: `${__dirname.toString()}/src/images`
    }
  },
  'gatsby-transformer-sharp',
  'gatsby-plugin-sharp',
  'gatsby-plugin-image',
  {
    resolve: 'gatsby-plugin-manifest',
    options: {
      name: 'gatsby-starter-default',
      short_name: 'starter',
      start_url: '__GATSBY_IPFS_PATH_PREFIX__',
      background_color: '#663399',
      theme_color: '#663399',
      display: 'minimal-ui',
      // icon: 'src/images/gatsby-icon.png' // This path is relative to the root of the site.
      icons: [
        {
          src: 'src/images/gatsby-icon.png',
          sizes: '192x192',
          type: 'image/png'
        }
      ] // Add or remove icon sizes as desired
    }
  }

  // this (optional) plugin enables Progressive Web App + Offline functionality
  // To learn more, visit: https://gatsby.dev/offline
  // `gatsby-plugin-offline`,
]

// Common settings to export.
const exportObj = {
  siteMetadata: {
    title: 'FullStack.cash Web Wallet',
    description: 'A BCH web wallet that uses FullStack.cash for its back end.',
    author: '@christroutner'
  }
}

// Build for IPFS
if (ipfsPrefix) {
  exportObj.pathPrefix = '__GATSBY_IPFS_PATH_PREFIX__'
  exportObj.plugins = ipfsConfig
} else {
  // Build for normal
  exportObj.plugins = normalConfig
}

module.exports = exportObj