Allow silencing the "missing instrumentation file" warning

[Red-Killer]

Problem Statement

I'm using Next.js only on the client side, so I don't use any server functions. That's why I don't really need the instrumentation file. However, if I delete it, I get a warning that can't be silenced

Solution Brainstorm

Maybe add a config attribute to silence the warning

[andreiborza]

Hi @Red-Killer thank you for writing in.

What's the warning you're getting? If I remove instrumentation.ts, sentry.server.config.ts and sentry.edge.config.ts from my test app and build I'm not getting any warnings.

[Red-Killer]

Not while building, just when running in dev mode. Here is the associated code line:

sentry-javascript/packages/nextjs/src/config/webpack.ts

Line 479 in 2049ade

if (!instrumentationFile) {

[lforst]

We could add a check for an env var to silence the warning.