chore(test): add script for pruning registry.json files (#25594)

1 files changed, 72 insertions, 0 deletions

diff --git a/tests/registry/npm/trim_registry_files.js b/tests/registry/npm/trim_registry_files.js
new file mode 100755
index 000000000..a47ded794
--- /dev/null
+++ b/tests/registry/npm/trim_registry_files.js
@@ -0,0 +1,72 @@
+#!/usr/bin/env -S deno run --allow-write=. --allow-read=.
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+// Run this to trim the registry.json files
+
+for (const dirPath of getPackageDirs()) {
+  if (dirPath.includes("@denotest")) {
+    continue;
+  }
+  const versions = Array.from(Deno.readDirSync(dirPath)
+    .map(e => extractVersion(e.name)))
+    .filter(e => e != null);
+
+  const registryPath = dirPath + "/registry.json";
+  const data = JSON.parse(Deno.readTextFileSync(registryPath));
+  // this is to save data
+  for (const version in data.versions) {
+    if (!versions.includes(version)) {
+      delete data.versions[version];
+    } else {
+      delete data._id;
+      delete data._rev;
+      delete data.users;
+      delete data.contributors;
+      delete data.maintainers;
+      delete data.keywords;
+      delete data.time;
+      delete data.versions[version].contributors;
+      delete data.versions[version].homepage;
+      delete data.versions[version].keywords;
+      delete data.versions[version].maintainers;
+      delete data.versions[version]._npmUser;
+      delete data.versions[version]._npmOperationalInternal;
+      if (!versions.includes(data["dist-tags"].latest)) {
+        data["dist-tags"].latest = [...versions].sort().pop();
+      }
+      for (const distTag in data["dist-tags"]) {
+        if (!versions.includes(data["dist-tags"][distTag])) {
+          delete data["dist-tags"][distTag];
+        }
+      }
+    }
+  }
+  Deno.writeTextFileSync(registryPath, JSON.stringify(data, null, 2) + "\n");
+}
+
+function extractVersion(name) {
+  const index = name.lastIndexOf('-');
+  if (index === -1)
+    return undefined;
+  return name.substring(index + 1).replace(/\.tgz$/, "");
+}
+
+function* getPackageDirs() {
+  for (const entry of Deno.readDirSync(import.meta.dirname)) {
+    if (!entry.isDirectory) {
+      continue;
+    }
+
+    if (entry.name.startsWith("@")) {
+      const dirPath = import.meta.dirname + "/" + entry.name;
+      for (const entry of Deno.readDirSync(dirPath)) {
+        if (!entry.isDirectory) {
+          continue;
+        }
+        yield dirPath + "/" + entry.name;
+      }
+    } else {
+      yield import.meta.dirname + "/" + entry.name;
+    }
+  }
+}