Move upgrade-bundle.ts to pr-checks and add tests

.github/actions/update-bundle/action.yml

@@ -1,14 +0,0 @@
-name: Update default CodeQL bundle
-description: Updates 'src/defaults.json' to point to a new CodeQL bundle release.
-
-runs:
-  using: composite
-  steps:
-    - name: Install ts-node
-      shell: bash
-      run: npm install -g ts-node
-
-    - name: Run update script
-      working-directory: ${{ github.action_path }}
-      shell: bash
-      run: ts-node ./index.ts

.github/actions/update-bundle/index.ts

@@ -1,67 +0,0 @@
-import * as fs from 'fs';
-import * as github from '@actions/github';
-
-interface BundleInfo {
-  bundleVersion: string;
-  cliVersion: string;
-}
-
-interface Defaults {
-  bundleVersion: string;
-  cliVersion: string;
-  priorBundleVersion: string;
-  priorCliVersion: string;
-}
-
-function getCodeQLCliVersionForRelease(release): string {
-  // We do not currently tag CodeQL bundles based on the CLI version they contain.
-  // Instead, we use a marker file `cli-version-<version>.txt` to record the CLI version.
-  // This marker file is uploaded as a release asset for all new CodeQL bundles.
-  const cliVersionsFromMarkerFiles = release.assets
-    .map((asset) => asset.name.match(/cli-version-(.*)\.txt/)?.[1])
-    .filter((v) => v)
-    .map((v) => v as string);
-  if (cliVersionsFromMarkerFiles.length > 1) {
-    throw new Error(
-      `Release ${release.tag_name} has multiple CLI version marker files.`
-    );
-  } else if (cliVersionsFromMarkerFiles.length === 0) {
-    throw new Error(
-      `Failed to find the CodeQL CLI version for release ${release.tag_name}.`
-    );
-  }
-  return cliVersionsFromMarkerFiles[0];
-}
-
-async function getBundleInfoFromRelease(release): Promise<BundleInfo> {
-  return {
-    bundleVersion: release.tag_name,
-    cliVersion: getCodeQLCliVersionForRelease(release)
-  };
-}
-
-async function getNewDefaults(currentDefaults: Defaults): Promise<Defaults> {
-  const release = github.context.payload.release;
-  console.log('Updating default bundle as a result of the following release: ' +
-    `${JSON.stringify(release)}.`)
-
-  const bundleInfo = await getBundleInfoFromRelease(release);
-  return {
-    bundleVersion: bundleInfo.bundleVersion,
-    cliVersion: bundleInfo.cliVersion,
-    priorBundleVersion: currentDefaults.bundleVersion,
-    priorCliVersion: currentDefaults.cliVersion
-  };
-}
-
-async function main() {
-  const previousDefaults: Defaults = JSON.parse(fs.readFileSync('../../../src/defaults.json', 'utf8'));
-  const newDefaults = await getNewDefaults(previousDefaults);
-  // Update the source file in the repository. Calling workflows should subsequently rebuild
-  // the Action to update `lib/defaults.json`.
-  fs.writeFileSync('../../../src/defaults.json', JSON.stringify(newDefaults, null, 2) + "\n");
-}
-
-// Ideally, we'd await main() here, but that doesn't work well with `ts-node`.
-// So instead we rely on the fact that Node won't exit until the event loop is empty.
-main();

.github/workflows/update-bundle.yml

@@ -50,7 +50,7 @@ jobs:
         run: npm ci
 
       - name: Update bundle
-        uses: ./.github/actions/update-bundle
+        run: npx tsx pr-checks/update-bundle.ts
 
       - name: Set up CodeQL CLI from new bundle
         id: setup-codeql