Add v3 docs schema migration

Author: kossnocorp

.gitignore

@@ -7,3 +7,4 @@ yarn-error.log
 .DS_Store
 FIXME_*
 *.log
+/secrets/

scripts/migrations/migrateV3.ts

@@ -0,0 +1,59 @@
+import { db, JSDocFunction, JSDocPage, MarkdownPage } from '@date-fns/docs/db'
+import * as admin from 'firebase-admin'
+import { last } from 'lodash'
+import { StringifiedJSON } from 'typeroo/json'
+import { schema, Typesaurus } from 'typesaurus'
+
+admin.initializeApp()
+
+type Page =
+  | MarkdownPage
+  | (Omit<JSDocPage, 'doc'> & {
+      doc: { json: string }
+    })
+
+const oldDb = schema(($) => ({
+  pages: $.collection<Page>(),
+}))
+
+type OldSchema = Typesaurus.Schema<typeof oldDb>
+
+const maxPageSize = 100
+
+processAll((pages) =>
+  Promise.all(
+    pages.map((page) => {
+      if (page.data.type === 'markdown') return
+      return db.pages.update(page.ref.id, {
+        doc: page.data.doc.json as StringifiedJSON<JSDocFunction>,
+      })
+    })
+  )
+)
+  .then(() => console.log('Done'))
+  .catch((error) => {
+    console.error(error)
+    process.exit(1)
+  })
+
+type ChunkCallback = (chunk: OldSchema['pages']['Doc'][]) => unknown
+
+async function processAll(
+  cb: ChunkCallback,
+  cursor?: OldSchema['pages']['Doc']
+) {
+  const { pageSize, nextCursor } = await processChunk(cb, cursor)
+  if (nextCursor && pageSize === maxPageSize) await processAll(cb, nextCursor)
+}
+
+async function processChunk(
+  cb: ChunkCallback,
+  cursor?: OldSchema['pages']['Doc']
+) {
+  const chunk = await oldDb.pages.query(($) => [
+    $.field($.docId()).order('asc', cursor && $.startAfter(cursor)),
+    $.limit(maxPageSize),
+  ])
+  await cb(chunk)
+  return { pageSize: chunk.length, nextCursor: last(chunk) }
+}

src/constants.ts

@@ -33,8 +33,8 @@ const config: { [k: string]: Config } = {
   development: {
     jobsURL: 'https://jobs.date-fns.org',
     firebaseApp: {
-      apiKey: 'AIzaSyBoDBiIbKeiu4-Uz4JzqH3X7pwbop2PfpU',
-      projectId: 'date-fns-org',
+      apiKey: 'AIzaSyArPabWWebnLWhEgITZbLjTA6I_BaDmF0E',
+      projectId: 'date-fns-org-staging',
     },
     apiURL: '/api',
   },