Add first pass migration script

carbon-projects/scripts/migrateProjectContentTextToBlock.js

@@ -0,0 +1,74 @@
+// scripts/textToBlock.js
+
+/* eslint-disable no-console */
+import { customAlphabet } from "nanoid";
+import sanityClient from "part:@sanity/base/client";
+const client = sanityClient.withConfig({ apiVersion: "2021-09-01" });
+
+const nanoid = customAlphabet("0123456789abcdef", 12);
+
+const TYPE = "projectContent"; // document _type to consider
+
+const fetchDocuments = () =>
+  client.fetch(`*[_type == "${TYPE}"][0..50] {_id, _rev, longDescription}`);
+
+const buildPatches = (docs) =>
+  docs.map((doc) => {
+    const paragraphs = doc.longDescription.split("\n");
+    const output = paragraphs.map((paragraph) => ({
+      _key: nanoid(),
+      _type: "block",
+      markDefs: [],
+      style: "normal",
+      children: [
+        {
+          _key: nanoid(),
+          _type: "span",
+          marks: [],
+          text: paragraph,
+        },
+      ],
+    }));
+
+    return {
+      id: doc._id,
+      patch: {
+        set: {
+          longDescription: output,
+        },
+        ifRevisionID: doc._rev,
+      },
+    };
+  });
+
+const createTransaction = (patches) =>
+  patches.reduce(
+    (tx, patch) => tx.patch(patch.id, patch.patch),
+    client.transaction()
+  );
+
+const commitTransaction = (tx) => tx.commit();
+
+const migrateNextBatch = async () => {
+  const documents = await fetchDocuments();
+  const patches = buildPatches(documents);
+
+  if (patches.length === 0) {
+    console.log("No more documents to migrate!");
+    return null;
+  }
+  console.log(
+    `Migrating batch:\n %s`,
+    patches
+      .map((patch) => `${patch.id} => ${JSON.stringify(patch.patch)}`)
+      .join("\n")
+  );
+  const transaction = createTransaction(patches);
+  await commitTransaction(transaction);
+  return migrateNextBatch();
+};
+
+migrateNextBatch().catch((err) => {
+  console.error(err);
+  process.exit(1);
+});