solver.py KeyError

[siebrenf]

Hey all,

the workflow at bioconda uses boa 0.14 to build packages. When building packages for OSX we're getting a KeyError in some cases. I think this might be an issue in boa, but without a mac its hard to track down where the error originates.

This PR has tracebacks and several full logs.

[dpryan79]

There's a longer thread with numerous example here: https://github.com/bioconda/bioconda-recipes/issues/41526

In short, the general error we're seeing (only on OSX-64) is:

Traceback (most recent call last):
  File "/opt/mambaforge/envs/bioconda/bin/conda-mambabuild", line 10, in <module>
    sys.exit(main())
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/boa/cli/mambabuild.py", line 256, in main
    call_conda_build(action, config)
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/boa/cli/mambabuild.py", line 228, in call_conda_build
    result = api.build(
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/api.py", line 180, in build
    return build_tree(
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/build.py", line 3078, in build_tree
    packages_from_this = build(metadata, stats,
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/build.py", line 2038, in build
    output_metas = expand_outputs([(m, need_source_download, need_reparse_in_env)])
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/render.py", line 787, in expand_outputs
    for (output_dict, m) in deepcopy(_m).get_output_metadata_set(permit_unsatisfiable_variants=False):
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/metadata.py", line 2524, in get_output_metadata_set
    conda_packages = finalize_outputs_pass(
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/metadata.py", line 884, in finalize_outputs_pass
    fm = finalize_metadata(
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/render.py", line 547, in finalize_metadata
    build_unsat, host_unsat = add_upstream_pins(m,
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/render.py", line 387, in add_upstream_pins
    build_deps, build_unsat, extra_run_specs_from_build = _read_upstream_pin_files(m, 'build',
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/render.py", line 374, in _read_upstream_pin_files
    deps, actions, unsat = get_env_dependencies(m, env, m.config.variant,
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/conda_build/render.py", line 131, in get_env_dependencies
    actions = environ.get_install_actions(tmpdir, tuple(dependencies), env,
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/boa/cli/mambabuild.py", line 141, in mamba_get_install_actions
    solution = solver.solve_for_action(_specs, prefix)
    return to_action(
  File "/opt/mambaforge/envs/bioconda/lib/python3.8/site-packages/boa/core/solver.py", line 79, in to_action
    entry = lookup_dict[get_url_from_channel(c)]
KeyError: 'https://conda.anaconda.org/conda-forge'

It seems like the key that actually exists in the lookup_dict has "/osx-64" appended to it. No one from our end has yet delved into the details of the libmamba code to try and determine how this itself is getting set.

[wolfv]

Argh, sorry, I think this is related to the latest two mamba releases ... the fix was just merged https://github.com/mamba-org/mamba/pull/2641

[dpryan79]

@wolfv Excellent, is a new release imminent?