gatsby-config.js

// Federalist provides the BASEURL env variable for preview builds.
// https://github.com/18F/federalist-garden-build#variables-exposed-during-builds
const BASEURL = process.env.BASEURL || '';

// CircleCI production environment
const GTM_ID = process.env.BLOG_GTM_ID

module.exports = {
  siteMetadata: {
    title: 'Open Data, Design, & Development at the Office of Natural Resources Revenue',
    author: 'The Open Data, Design, & Development (ODDD) team',
    description: 'Blog for the Open Data, Design, & Development team at the Office of Natural Resources Revenue',
    siteUrl: 'https://blog-nrrd.doi.gov/',
  },
  pathPrefix: `${BASEURL}/`,
  mapping: {
    "MarkdownRemark.frontmatter.authors": `AuthorYaml.yamlId`,
  },
  plugins: [
    {
      resolve: 'gatsby-plugin-google-tagmanager',
      options: {
        id: GTM_ID
      }
    },
    `gatsby-transformer-yaml`,
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        path: `${__dirname}/src/pages`,
        name: 'pages',
      },
    },
    {
      resolve: `gatsby-source-filesystem`,
      options: {
        path: `${__dirname}/src/data`,
        name: 'data',
      },
    },
    {
      resolve: `gatsby-transformer-remark`,
      options: {
        plugins: [
          {
            resolve: `gatsby-remark-autolink-headers`,
            options: {
              offsetY: `100`,
              icon: `<svg aria-hidden="true" height="20" version="1.1" viewBox="0 0 16 16" width="20"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg>`,
              maintainCase: true,
              removeAccents: true,
            },
          },
          {
            resolve: `gatsby-remark-images`,
            options: {
              maxWidth: 650,
              quality: 80,
            },
          },
          {
            resolve: `gatsby-remark-responsive-iframe`,
            options: {
              wrapperStyle: `margin-bottom: 1.0725rem`,
            },
          },
          'gatsby-remark-prismjs',
          'gatsby-remark-copy-linked-files',
          'gatsby-remark-smartypants',
        ],
      },
    },
    `gatsby-transformer-sharp`,
    `gatsby-plugin-sharp`,
    `gatsby-plugin-offline`,
    `gatsby-plugin-react-helmet`,
    {
      resolve: 'gatsby-plugin-typography',
      options: {
        pathToConfigModule: 'src/utils/typography',
      },
    },
    {
      resolve: `gatsby-plugin-feed`,
      options: {
        query: `
          {
            site {
              siteMetadata {
                title
                description
                siteUrl
                site_url: siteUrl
              }
            }
          }
        `,
        feeds: [
          {
            serialize: ({ query: { site, allMarkdownRemark } }) => {
              return allMarkdownRemark.edges.map(edge => {
                return Object.assign({}, edge.node.frontmatter, {
                  description: edge.node.excerpt,
                  date: edge.node.frontmatter.date,
                  url: site.siteMetadata.siteUrl + edge.node.fields.slug,
                  guid: site.siteMetadata.siteUrl + edge.node.fields.slug,
                  custom_elements: [{ "content:encoded": edge.node.excerpt }],
                })
              })
            },
            query: `
              {
                allMarkdownRemark(sort: {frontmatter: {date: DESC}}) {
                  edges {
                    node {
                      excerpt
                      html
                      fields { slug }
                      frontmatter {
                        title
                        date
                      }
                    }
                  }
                }
              }
            `,
            output: "/rss.xml",
            title: "NRRD Blog RSS Feed",
          },
        ],
      },
    },
  ],
}