Multi output builds with variants are broken when skipping some outputs about rattler-build HOT 6 CLOSED

Hmm, I wonder what the expected output is, here. Do you expect the exact=true pin to point to the variant of the new_pydantic=false package?

Currently we (conceptually) treat a recipe variant over the entire file. So in this case, rattler-build thinks that the package-base doesn't exist for new_pydantic=false and then fails.

However, it also fails when not "exactly" pinning. So something seems fishy nonetheless and worth looking into!

from rattler-build.

Hmm, well, the other assumption for pin_subpackage is that the "subpackage" is available when rendering with that specific variant.

Well, something to think about.

from rattler-build.

If we decide not to support this, i'm wondering what the best alternative for this example would be... In conda-build (and older rattler-build versions) it works 🤔

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Hmm, I double checked this. Actually, it's not necessary to skip anything - since new_pydantic is not used in the base package, the hash is always the same and it builds only three packages in the right order.

recipe:
  version: '0.1.0'
build:
  number: 0

outputs:
  - package:
      name: package-base
    build:
      noarch: generic

  - package:
      name: package
    build:
      noarch: python
    requirements:
      host:
        - ${{ pin_subpackage('package-base', exact=true) }}
        - if: new_pydantic
          then:
            - pydantic >=2
          else:
            - pydantic >=1,<2

Let me know if that works fine for your use case?

from rattler-build.

 ╭─ Finding outputs from recipe
 │ Found 3 variants
 │ Build variant: package-base-0.1.0-h4616a5c_0
 │ 
 │ ╭─────────────────┬─────────╮
 │ │ Variant         ┆ Version │
 │ ╞═════════════════╪═════════╡
 │ │ target_platform ┆ noarch  │
 │ ╰─────────────────┴─────────╯
 │ Build variant: package-0.1.0-pyh590d979_0
 │ 
 │ ╭─────────────────┬──────────────────╮
 │ │ Variant         ┆ Version          │
 │ ╞═════════════════╪══════════════════╡
 │ │ new_pydantic    ┆ true             │
 │ │ package-base    ┆ 0.1.0 h4616a5c_0 │
 │ │ target_platform ┆ noarch           │
 │ ╰─────────────────┴──────────────────╯
 │ Build variant: package-0.1.0-pyhfc8578e_0
 │ 
 │ ╭─────────────────┬──────────────────╮
 │ │ Variant         ┆ Version          │
 │ ╞═════════════════╪══════════════════╡
 │ │ new_pydantic    ┆ false            │
 │ │ package-base    ┆ 0.1.0 h4616a5c_0 │
 │ │ target_platform ┆ noarch           │
 │ ╰─────────────────┴──────────────────╯
 │
 ╰─────────────────── (took 0 seconds)

from rattler-build.

Seems to work, thanks!

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