Setup environment for pre-commit

Question

How can I source a bash script that contains exports for environment variables?

env.sh

...
export VARIABLE=test
...

test_file.py

...
os.environ['VARIABLE'] # Throws KeyError
...

How can I use pre-commit to run env.sh to setup an environment that the following pytest hook can use?

-   repo: local
    hooks:
    -   id: tests
        name: run tests
        entry: pytest -v
        language: system
        types: [python]

user_19154174 · Answer

You shouldn't use pre-commit for pytest due to:

tests are often slow, committing should be fast
It would have to be a system / script hook since you'd need repository specific dependencies.

user_2953243 · Answer

pre-commit-config

change language to python (optional, but it's so that pre-commit creates a venv)
entry - we will invoke a bash script instead of invoking pytest directly

Ex.

 - repo: local
   hooks:
   - id: tests
     name: run tests
     entry: bash tests.sh
     language: python

tests.sh

source env.sh
pytest -v .