Single file executable import failing for "google-gax"

[Flux159]

What version of Bun is running?

1.2.10

What platform is your computer?

Darwin 24.5.0 arm64 arm

What steps can reproduce the bug?

I'm trying to get the spanner client @google-cloud/spanner working with a single file executable. Example code is here:

spannertest.ts:

import { Spanner } from "@google-cloud/spanner";

// Code getting projectId, instanceId, databaseId from env vars

const spanner = new Spanner({ projectId });
const instance = spanner.instance(instanceId);
const database = instance.database(databaseId);

const query = {
  sql: "SELECT 1",
};

const [rows] = await database.run(query);
console.log(`Query: ${rows.length} found.`);
rows.forEach((row) => console.log(row));

Building works fine after applying a patch for protobufjs:

./patches/@protobufjs%[email protected]:

diff --git a/index.js b/index.js
index 33778b5539b7fcd7a1e99474a4ecb1745fdfe508..2bbe4cab025553db0814aba2a333d615e9d335e8 100644
--- a/index.js
+++ b/index.js
@@ -9,9 +9,12 @@ module.exports = inquire;
  */
 function inquire(moduleName) {
     try {
-        var mod = eval("quire".replace(/^/,"re"))(moduleName); // eslint-disable-line no-eval
+        var mod = require(moduleName);
         if (mod && (mod.length || Object.keys(mod).length))
             return mod;
+        // var mod = eval("quire".replace(/^/,"re"))(moduleName); // eslint-disable-line no-eval
+        // if (mod && (mod.length || Object.keys(mod).length))
+        //     return mod;
     } catch (e) {} // eslint-disable-line no-empty
     return null;
 }

bun build ./spannertest.ts --compile --outfile dist/new

Running ./dist/new works fine when run from the project directory (because node_modules is still in a parent folder & has google-gax inside of it). When I move new to a new directory, I get this error:

$ ./new 
error: Cannot find package 'google-gax' from '/$bunfs/root/new'

What is the expected behavior?

google-gax should be bundled inside of a single file executable. It doesn't seem like it's dynamically imported from @google-cloud/spanner, so unclear why it's not being included as it's a nested dependency.

What do you see instead?

After moving the binary to a new dir w/out node_modules in a parent dir:

error: Cannot find package 'google-gax' from '/$bunfs/root/new'

Additional information

I was wondering two things:

• Is it possible to debug the bunfs filesystem in a single-file-executable? Not the embeddedFiles which I know there exists a helper for, the entire file system & see why google-gax is not included.
• How can I fix this error? I tried directly importing google-gax import * as _ggax from "google-gax"; and that doesn't work. I can build ./dist/new then move it, then do a bun install google-gax in the new directory and that works, but that defeats the purpose of a single file executable.

[Flux159]

Some additional info thanks to googleapis/nodejs-spanner#2137 - nodejs-spanner does have dynamic loading, specifically this code around gaxProtoPath is being used to load protobufs from @grpc/proto-loader:
https://github.com/googleapis/nodejs-spanner/blob/1f06871f7aca386756e8691013602b069697bb87/src/common-grpc/service.ts#L46 and https://github.com/googleapis/nodejs-spanner/blob/1f06871f7aca386756e8691013602b069697bb87/src/common-grpc/service.ts#L1035

Will debug some more if a patch can fix this.