diff --git a/.github/workflows/update-links.yml b/.github/workflows/update-links.yml
index 2ea4d574..1fe177ba 100644
--- a/.github/workflows/update-links.yml
+++ b/.github/workflows/update-links.yml
@@ -12,6 +12,11 @@ on:
         description: 'Node.js version (ex/ `v20.0.0`)'
         required: false
         type: string
+      purge-cache:
+        description: 'Purge all elements in the KV cache?'
+        type: boolean
+        required: false
+        default: false
 
 concurrency:
   group: update-redirect-links
@@ -59,7 +64,7 @@ jobs:
         run: npm ci && npm update nodejs-latest-linker --save
 
       - name: Update Directory Cache
-        run: node scripts/handle-mainline-release.mjs && node --run format
+        run: node scripts/handle-mainline-release.mjs ${{ inputs.purge-cache ?? '--purge' }} && node --run format
         env:
           VERSION_INPUT: "${{ inputs.version || '' }}"
           CLOUDFLARE_API_TOKEN: ${{ secrets.CF_API_TOKEN }}
diff --git a/scripts/build-directory-cache.mjs b/scripts/build-directory-cache.mjs
deleted file mode 100755
index 0fd05fe0..00000000
--- a/scripts/build-directory-cache.mjs
+++ /dev/null
@@ -1,87 +0,0 @@
-#!/usr/bin/env node
-
-/**
- * This is probably not the script you want to run.
- *
- * This script builds the directory cache from scratch, with an optional
- * ability to purge the contents of the cache before doing so.
- *
- * This script should only be ran when there isn't already a directory cache or
- * the current directory cache is corrupted in some way. For other situations,
- * try `./update-directory-cache.mjs`.
- *
- * Usage: build-directory-cache.mjs [--purge]
- *  --purge: Use with caution. It will delete all elements in the cache and
- *      then rebuild it.
- */
-
-import {
-  DIRECTORY_CACHE_NAMESPACE_ID,
-  PROD_BUCKET,
-  RELEASE_DIR,
-} from './constants.mjs';
-import { addSymlinksToDirectoryCache } from './utils/addSymlinksToDirectoryCache.mjs';
-import { getLatestVersionMapping } from './utils/getLatestVersionMapping.mjs';
-import {
-  createCloudflareClient,
-  deleteKvNamespaceKeys,
-  listKvNamespace,
-  writeKeysToKv,
-} from './utils/kv.mjs';
-import { createS3Client, listR2DirectoryRecursive } from './utils/r2.mjs';
-
-// Ensure all necessary environment variables are set
-for (const envVar of [
-  'CLOUDFLARE_API_TOKEN',
-  'S3_ACCESS_KEY_ID',
-  'S3_ACCESS_KEY_SECRET',
-]) {
-  if (!process.env[envVar]) {
-    throw new TypeError(`${envVar} missing from process.env`);
-  }
-}
-
-// Create the clients we need to access the data
-const s3Client = createS3Client(
-  process.env.S3_ACCESS_KEY_ID,
-  process.env.S3_ACCESS_KEY_SECRET
-);
-
-const cfClient = createCloudflareClient();
-
-// List the entire R2 bucket
-const directories = await listR2DirectoryRecursive(s3Client, PROD_BUCKET);
-console.log(`Listed ${directories.size} directories from ${PROD_BUCKET}`);
-
-if (!directories.get(RELEASE_DIR)) {
-  throw new TypeError(
-    `release directory ${RELEASE_DIR} missing in ${PROD_BUCKET}`
-  );
-}
-
-const latestVersions = await getLatestVersionMapping(
-  s3Client,
-  directories.get(RELEASE_DIR),
-  directories
-);
-
-await addSymlinksToDirectoryCache(s3Client, directories, latestVersions);
-
-// Purge directory cache if wanted
-if (process.argv[2] === '--purge') {
-  const cachedDirectoryKeys = await listKvNamespace(
-    cfClient,
-    DIRECTORY_CACHE_NAMESPACE_ID
-  );
-  console.log(`Purging ${cachedDirectoryKeys.size} keys`);
-
-  await deleteKvNamespaceKeys(
-    cfClient,
-    DIRECTORY_CACHE_NAMESPACE_ID,
-    Array.from(cachedDirectoryKeys)
-  );
-}
-
-// Update keys in the directory cache
-console.log(`Writing ${directories.size} keys to directory cache...`);
-await writeKeysToKv(cfClient, DIRECTORY_CACHE_NAMESPACE_ID, directories);
diff --git a/scripts/handle-mainline-release.mjs b/scripts/handle-mainline-release.mjs
index 4713df2f..82b7b026 100644
--- a/scripts/handle-mainline-release.mjs
+++ b/scripts/handle-mainline-release.mjs
@@ -4,7 +4,8 @@
  * Updates the cached directory listings for paths that have symlinks for the
  * mainline release bucket.
  *
- * Usage: ./handle-mainline-release.mjs
+ * Usage: ./handle-mainline-release.mjs [--purge]
+ *  --purge: Delete all elements in the cache before writing the new keys.
  *
  * If no version is provided, this just updates what's in {@link ALWAYS_UPDATED_PATHS}
  */
@@ -18,7 +19,12 @@ import {
 } from './constants.mjs';
 import { addSymlinksToDirectoryCache } from './utils/addSymlinksToDirectoryCache.mjs';
 import { getLatestVersionMapping } from './utils/getLatestVersionMapping.mjs';
-import { createCloudflareClient, writeKeysToKv } from './utils/kv.mjs';
+import {
+  createCloudflareClient,
+  deleteKvNamespaceKeys,
+  listKvNamespace,
+  writeKeysToKv,
+} from './utils/kv.mjs';
 import { createS3Client, listR2DirectoryRecursive } from './utils/r2.mjs';
 
 // Ensure all necessary environment variables are set
@@ -72,6 +78,21 @@ const latestVersions = await getLatestVersionMapping(
 
 await addSymlinksToDirectoryCache(s3Client, directories, latestVersions);
 
+// Purge directory cache if wanted
+if (process.argv[2] === '--purge') {
+  const cachedDirectoryKeys = await listKvNamespace(
+    cfClient,
+    DIRECTORY_CACHE_NAMESPACE_ID
+  );
+  console.log(`Purging ${cachedDirectoryKeys.size} keys`);
+
+  await deleteKvNamespaceKeys(
+    cfClient,
+    DIRECTORY_CACHE_NAMESPACE_ID,
+    Array.from(cachedDirectoryKeys)
+  );
+}
+
 // Update keys in the directory cache. These intentionally do not have an
 // expiration set since they were made with info that the worker doesn't have
 // when deployed.