Daniel Lee d9aaaec1f3 Deploy environment variables in dotenv files for functions (#3645) ...

Add support for setting up environment variables for functions using dotenv files.

On deploy, Firebase CLI looks for naive dotenv file (`.env`) file or project-specific ones (`.env.<project id>` or `.env.<project alias>`) files, loads environment variables, and injects them on deployed functions. Environment variable set in project-specific dotenv file wins, and you cannot have both `.<project id>` and `<.project alias>` files.

Environment variables are also loaded up on Firebase Emulators. Emulator will look for `.env` and `.env.local` files and ignore project-specific dotenv files.

We are hiding the feature behind `dotenv` preview flag. We want to get a feeling for the development experience from our users before an official launch + documentations.

Also including a small e2e test for env var support. It's meant to run manually by the Firebase team via command `node scripts/test-functions-env.js`.

2021-08-11 13:31:18 -07:00

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functions_to_test_minimal.js

Deploy environment variables in dotenv files for functions (#3645)

2021-08-11 13:31:18 -07:00

functions_to_test.js

upgrade prettier (#3010)

2021-01-08 16:01:31 -08:00