Simple reproducer for virtual PackageRecord error

[maresb]

This is a lingering point of major breakage. Fails on both 1.4.0 and main.

Seems related to #202, #292, #381.

docker run --rm -it mambaorg/micromamba
micromamba install -y -c conda-forge mamba conda-lock git
mamba --version
# mamba 1.4.2
# conda 23.3.1
cat <<EOF > environment.yml
channels:
- conda-forge
dependencies:
- git
platforms:
- osx-64
EOF
conda-lock
pip install git+https://github.com/conda/conda-lock@4a667bd  # main, right after merging #290
conda-lock

STDERR:

PackageRecord(_hash=-2262511397987521167, name='__osx', version='0', build='0', build_number=0, channel=Channel("@"), subdir='osx-64', fn='__osx', md5='12345678901234567890123456789012', package_type='virtual_system')

Traceback (most recent call last):
  File "/opt/conda/bin/conda-lock", line 10, in <module>
    sys.exit(main())
             ^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 1130, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 1657, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/click/decorators.py", line 26, in new_func
    return f(get_current_context(), *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/conda_lock.py", line 1353, in lock
    lock_func(
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/conda_lock.py", line 1083, in run_lock
    make_lock_files(
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/conda_lock.py", line 408, in make_lock_files
    lock_content = lock_content | create_lockfile_from_spec(
                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/conda_lock.py", line 801, in create_lockfile_from_spec
    deps = _solve_for_arch(
           ^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/conda_lock.py", line 723, in _solve_for_arch
    conda_deps = solve_conda(
                 ^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/conda_solver.py", line 168, in solve_conda
    dry_run_install = solve_specs_for_arch(
                      ^^^^^^^^^^^^^^^^^^^^^
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/conda_solver.py", line 355, in solve_specs_for_arch
    proc.check_returncode()
  File "/opt/conda/lib/python3.11/site-packages/conda_lock/_vendor/poetry/utils/_compat.py", line 168, in check_returncode
    raise CalledProcessError(
conda_lock._vendor.poetry.utils._compat.CalledProcessError: Command '['/opt/conda/bin/mamba', 'create', '--prefix', '/tmp/tmpfeqdnq88/prefix', '--dry-run', '--json', '--override-channels', '--channel', 'conda-forge', '--channel', 'file:///tmp/tmpekcnto8c', 'git']' returned non-zero exit status 1.

[maresb]

Workaround: pin conda to 22.9

[lesteve]

I think the issue with the glibc virtual package has been fixed in conda/conda#12293. There is a very similar one with the osx virtual package though, I have opened conda/conda#12715 that hopefully will fix this.

[maresb]

Wonderful, thanks so much!!!

Once this is released, it seems to me like we should be checking the Conda version in use by Mamba, and warn if it's older.

[maresb]

Conda v23.7.0 just became available. I am hoping that this is now completely solved. Please try and report back.

[maresb]

This should be solved by using the latest version of Conda. Ref: sagemath/sage#35986 (comment)

[lesteve]

Just seeing this now, very nice to see this fixed!

[maresb]

Agreed, thank you @lesteve for fixing it!!!