Fix environment variables value retrieval #5111
Merged
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Environment variable value retrieval system uses lazy to not probe environment variables values several times. It had a side effect that, if a env var value is retrieved before init step, it is set to undefined (
None
) for all other call. And it was the case forOPAMCURL
andOPAMFETCH
that are used inOpamInitDefaults
to set up the default init config (and called at toplevel inOpamConfigCommand
, but we can consider that it is legitimate to call it before init via the opam lib).To allow that usage, this PR adds a direct probing of the environment variable value.
fix #5108