Provide a way to disable env conflicts warning

Problem

In some settings, it might be necessary to disable .env conflict warning.

For example, a monorepo could have a .env file at the root and also symlink it inside a monorepo package. In this case, disabling .env conflict warnings is completely reasonable.

For example, running Nest.JS tests with jest will print this warning for each test file (as jest runs each test file in a separate worker) which is very noisy:

Suggested solution

Provide a way to disable env warnings.

Alternatives

No user-space workaround is possible as the check is hardcoded in the generated code: https://github.com/prisma/prisma/blob/698ce54d3d5e6d4635263d5709bfcc7d32a146a5/packages/client/src/generation/TSClient/TSClient.ts#L140-L148

https://github.com/prisma/prisma/blob/ba74c81fdbc9e6405946fdc6f9d42d103d008dc2/packages/client/src/runtime/warnEnvConflicts.ts#L3-L5

Additional context

prisma@3.2.1

[PabloSzx]

any news on this?, when doing testing, watching this warning repeated a million times gives too much noise, when in practice there is literally no actual env conflict because every .env is symlinked

[VanTanev]

I suggest people look at https://www.npmjs.com/package/patch-package for a workaround.

From: Andy Young @.> Sent: Wednesday, October 5, 2022 1:51:42 PM To: prisma/prisma @.> Cc: Ivan Tanev @.>; Author @.> Subject: Re: [prisma/prisma] Provide a way to disable env conflicts warning (#9726)

Hacky workaround to suppress this error within automated tests if you’re using Jest - by mocking out the warning function(!)

(Likely translatable to other testing libraries if you’re not using Jest.)

prisma_mock.ts:

import prismaClient from @./client"; @./client/runtime/index.js", () => { const defaultMethods = jest.requireActual( @.***/client/runtime/index.js" );

return { __esModule: true, …defaultMethods,

// suppress needless prisma warning
// "Conflict for env var CORE_DATABASE_URL in ../../.env and .env".
// - track https://github.com/prisma/prisma/issues/9726 for

potential better solution warnEnvConflicts: () => undefined, };}); export default prismaClient;

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