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conda-incubator / conda-store

Data science environments, for collaboration. ✨
https://conda.store
BSD 3-Clause "New" or "Revised" License
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Set channel priority to strict, print config info #693

Closed nkaretnikov closed 8 months ago

nkaretnikov commented 8 months ago

This PR sets the channel priority to strict to avoid issues during solves when multiple channels that were not specified are being used. This is done by passing the command line option --strict-channel-priority via the environment variable CONDA_FLAGS, which is used by conda-lock, which is a library conda-store uses to solve dependencies.

CONDA_FLAGS is used because it's a method of passing options that's local to conda-lock as opposed to editing global conda configuration files. Editing user configuration files may lead to unexpected issues in contexts where conda-store is used in standalone mode. Those configuration files affect how conda works outside of conda-store, which might be important to end users.

From the documentation at https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-channels.html:

With strict channel priority, packages in lower priority channels are not considered if a package with the same name appears in a higher priority channel.

Additionally, this PR adds code that prints useful system information related to conda configuration before the package solving process. This is useful for debugging. The commands used are:

Note that the latter two commands are not supported by mamba, which is why conda is used.

Fixes #359, fixes #659.

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nkaretnikov commented 8 months ago

"Place a bound on docker-py" - this commit is a workaround for a CI issue, might need to be removed before merge. See #689.

nkaretnikov commented 8 months ago

This is ready for review. Tested manually as well. See https://github.com/conda-incubator/conda-store/pull/693#issuecomment-1849389728 before merge.