Read custom_multichannels from .condarc

[jonashaag]

Is this all that it takes to fix #1236?! Seems to work in my limited manual tests so far.

Where should I put tests for this change?

[wolfv]

yep, that should be it!

I've already added some tests in

mamba/test/test_channel.cpp

Line 156 in 8cdc829

TEST(ChannelContext, custom_multichannels)

[jonashaag]

Yes I saw those but they don't test the .condarc reading, otherwise we would have realised the missing option already.

[wolfv]

I wonder if we can add a test e.g. to https://github.com/mamba-org/mamba/blob/master/test/micromamba/test_config.py or test_info.py

In that case we can create a .condarc file from Python, and then check what micromamba info returns.

Although there may be two problems:

• not sure if micromamba info prints the channels currently (could be added)
• and I think micromamba config list will just show the yaml config essentially

[wolfv]

Ah well, I just saw your other PR! :)

[wolfv]

We can fix the lint in another PR.

Thanks!

For the tests, we can do that in another PR, too :) Just wanted to get rid of the clutter from the refactoring.