https://github.com/netlify/next-runtime/blob/733a0219e5413aa1eea790af…

…48c745322dbce917/src/index.ts#L7

packages/netlify-plugin-cache-docs/index.js

@@ -1 +1,59 @@
-module.exports = require('@mui/monorepo/packages/netlify-plugin-cache-docs');
+/* eslint-disable no-console */
+const path = require('path');
+const fse = require('fs-extra');
+
+const CACHE_OUTPUT_FILE = 'cache-output.json';
+
+function generateAbsolutePaths(context) {
+  const { constants } = context;
+
+  const workspaceRoot = path.dirname(constants.CONFIG_PATH);
+  const docsWorkspacePath = path.join(workspaceRoot, 'docs');
+
+  const nextjsBuildDir = path.join(docsWorkspacePath, '.next', 'cache');
+
+  return { nextjsBuildDir };
+}
+
+module.exports = {
+  async onPreBuild(context) {
+    const { constants, utils } = context;
+    const { nextjsBuildDir } = generateAbsolutePaths({ constants });
+
+    const cacheExists = fse.existsSync(nextjsBuildDir);
+    console.log("'%s' exists: %s", nextjsBuildDir, String(cacheExists));
+
+    const success = await utils.cache.restore(nextjsBuildDir);
+
+    console.log("Restored the cached '%s' folder: %s", nextjsBuildDir, String(success));
+  },
+  async onBuild(context) {
+    const { constants, utils } = context;
+    const { nextjsBuildDir } = generateAbsolutePaths({ constants });
+
+    const cacheExists = fse.existsSync(nextjsBuildDir);
+
+    if (cacheExists) {
+      console.log("'%s' exists: %s", nextjsBuildDir, String(cacheExists));
+
+      const success = await utils.cache.save(nextjsBuildDir);
+
+      console.log("Cached '%s' folder: %s", nextjsBuildDir, String(success));
+    }
+  },
+  // debug
+  // based on: https://github.com/netlify-labs/netlify-plugin-debug-cache/blob/v1.0.3/index.js
+  async onEnd({ constants, utils }) {
+    const { PUBLISH_DIR } = constants;
+    const cacheManifestFileName = CACHE_OUTPUT_FILE;
+    const cacheManifestPath = path.join(PUBLISH_DIR, cacheManifestFileName);
+    console.log('Saving cache file manifest for debugging...');
+    const files = await utils.cache.list();
+    await fse.mkdirp(PUBLISH_DIR);
+    await fse.writeJSON(cacheManifestPath, files, { spaces: 2 });
+    console.log(`Cache file count: ${files.length}`);
+    console.log(`Cache manifest saved to ${cacheManifestPath}`);
+    console.log(`Please download the build files to inspect ${cacheManifestFileName}.`);
+    console.log('Instructions => http://bit.ly/netlify-dl-cache');
+  },
+};