68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
import chalk from 'chalk'
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export function createPages({ graphql, actions }, pluginOptions) {
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const { createRedirect } = actions
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const markdownQuery = pluginOptions.query || 'allMarkdownRemark'
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return new Promise((resolve, reject) => {
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resolve(
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graphql(
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`
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{
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q: ${markdownQuery}(
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filter: { frontmatter: { redirect_from: { ne: null } } }
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) {
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edges {
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node {
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fields {
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slug
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}
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frontmatter {
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redirect_from
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}
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}
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}
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}
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}
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`
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).then((result) => {
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if (result.errors) {
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console.log(result.errors) // eslint-disable-line no-console
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reject(result.errors)
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}
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const allPosts = result.data.q.edges
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const redirects = []
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// For all posts with redirect_from frontmatter,
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// extract all values and push to redirects array
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allPosts.forEach((post) => {
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redirects.push({
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from: post.node.frontmatter.redirect_from,
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to: post.node.fields.slug
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})
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})
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// Create redirects from the just constructed array
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redirects.forEach(({ from, to }) => {
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// iterate through all `from` array items
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from.forEach((from) => {
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createRedirect({
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fromPath: from,
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toPath: to,
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isPermanent: true,
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redirectInBrowser: true
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})
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})
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})
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resolve(
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console.log(`${chalk.green('success')} create redirects`) // eslint-disable-line no-console
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)
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})
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)
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})
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}
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