Copy project .npmrc to function dist (#5235)

To support private repositories and custom npm configs, copy the projects .npmrc file to the functions dist dir before deploying web frameworks to Cloud Functions

Co-authored-by: James Daniels <jamesdaniels@google.com>

CHANGELOG.md

@@ -1,3 +1,4 @@
+- Respect .npmrc in backends spun up for web frameworks (#5235)
 - Remove esbuild dependency, instead bundle Next.js configuration on deploy with NPX (#5336)
 - Add sharp NPM module to Cloud Functions when using Next.js Image Optimization (#5238)
 - Adds user-defined env vars into the functions emulator (#5330).

src/frameworks/index.ts

@@ -519,6 +519,10 @@ ${firebaseDefaults ? `__FIREBASE_DEFAULTS__=${JSON.stringify(firebaseDefaults)}\
         // continue
       });
 
+      if (await pathExists(getProjectPath(".npmrc"))) {
+        await copyFile(getProjectPath(".npmrc"), join(functionsDist, ".npmrc"));
+      }
+
       execSync(`${NPM_COMMAND} i --omit dev --no-audit`, {
         cwd: functionsDist,
         stdio: "inherit",