build(aws): Ensure AWS build cache does not keep old files (#17776)

This does two things:

1. Ensure the `build/aws` dir is cleared before we re-build it, to
ensure no old files remain and keep being cached.
2. Ensure we generate a zip explicitly with the files we care about
only, not all files in the `build/aws` dir

Author: mydea

packages/aws-serverless/package.json

@@ -79,7 +79,7 @@
   },
   "scripts": {
     "build": "run-p build:transpile build:types",
-    "build:layer": "rollup -c rollup.lambda-extension.config.mjs && yarn ts-node scripts/buildLambdaLayer.ts",
+    "build:layer": "rimraf build/aws && rollup -c rollup.lambda-extension.config.mjs && yarn ts-node scripts/buildLambdaLayer.ts",
     "build:dev": "run-p build:transpile build:types",
     "build:transpile": "rollup -c rollup.npm.config.mjs && yarn build:layer",
     "build:types": "run-s build:types:core build:types:downlevel",

packages/aws-serverless/scripts/buildLambdaLayer.ts

@@ -51,9 +51,11 @@ async function buildLambdaLayer(): Promise<void> {
   fs.chmodSync('./build/aws/dist-serverless/sentry-extension/index.mjs', 0o755);
 
   const zipFilename = `sentry-node-serverless-${version}.zip`;
+  // Only include these directories in the zip file
+  const dirsToZip = ['nodejs', 'extensions', 'sentry-extension'];
   console.log(`Creating final layer zip file ${zipFilename}.`);
   // need to preserve the symlink above with -y
-  run(`zip -r -y ${zipFilename} .`, { cwd: 'build/aws/dist-serverless' });
+  run(`zip -r -y ${zipFilename} ${dirsToZip.join(' ')}`, { cwd: 'build/aws/dist-serverless' });
 }
 
 // eslint-disable-next-line @typescript-eslint/no-floating-promises