Incorrect type for `script_env`?

I want to pass through the SETUPTOOLS_SCM_PRETEND_VERSION env var to the build so tried specifying it in the build.script_env section:

build:
  number: 0
  script: $PYTHON -m pip install . -vv
  script_env:
    - SETUPTOOLS_SCM_PRETEND_VERSION

However, it seems that boa doesn’t allow this:

Recipe validation error

['SETUPTOOLS_SCM_PRETEND_VERSION'] is not of type 'object'

Failed validating 'type' in 
schema['properties']['build']['properties']['script_env']:
    {'additionalProperties': {'type': 'string'},
     'title': 'Script Env',
     'type': 'object'}

On instance['build']['script_env']:
    ['SETUPTOOLS_SCM_PRETEND_VERSION']

Recipe validation not OK. This is currently ignored.

IIUC this should be allowed? https://docs.conda.io/projects/conda-build/en/latest/user-guide/environment-variables.html#inherited-environment-variables

It appears that boa expects this to be a key/value mapping instead of an array of names whose values will be set from the calling environment.

[dhirschfeld]

What do you think?

Having the type be an array of string where some strings may be encoded key/value pairs is a bit icky. You could maybe split it into e.g. env.inject and env.pass_through but maybe at that point it’s easier to just inject the environ into the context as discussed in #273.

I think I’d be in favour of injecting the environ as it’s a more general solution and would allow me to solve 2 issues I’m facing - this one (passing through env vars) and also injecting the version into the recipe.

[dhirschfeld]

Resolved by https://github.com/mamba-org/boa/pull/299