Fix: change definition of pkg_type variable in build function to solve KeyError: 'conda'

[ypradat]

Description

When trying to run conda-build on a simple perl package I wrote, I came across the error

Traceback (most recent call last):
  File "/mnt/nfs01/home/y_pradat/mambaforge/bin/conda-build", line 11, in <module>
    sys.exit(execute())
  File "/mnt/nfs01/home/y_pradat/mambaforge/lib/python3.10/site-packages/conda_build/cli/main_build.py", line 648, in execute
    api.build(
  File "/mnt/nfs01/home/y_pradat/mambaforge/lib/python3.10/site-packages/conda_build/api.py", line 211, in build
    return build_tree(
  File "/mnt/nfs01/home/y_pradat/mambaforge/lib/python3.10/site-packages/conda_build/build.py", line 3653, in build_tree
    packages_from_this = build(
  File "/mnt/nfs01/home/y_pradat/mambaforge/lib/python3.10/site-packages/conda_build/build.py", line 2764, in build
    newly_built_packages = bundlers[pkg_type](
KeyError: 'conda'

although I specified

build:
  pkg_format: ".conda"

in the meta.yaml of the conda recipe of my package. I tried

build:
  pkg_format: "conda"

as well but the same error occurred.

As a matter of fact, I don't quite understand how the current code can work. Looking at https://github.com/conda/conda/blob/main/conda/base/constants.py#L152-L153, we see clearly that acceptable keys for the bundlers dictionary are .conda, .tar.bz2, or wheel, not conda.

I suggest to replace the definition of pkg_type in the build.py function using the following piece of code from render.py
https://github.com/conda/conda-build/blob/main/conda_build/render.py#L73-L79.

Doing this replacement solved the KeyError issue for me.

Checklist - did you ...

• Add a file to the news directory (using the template) for the next release's release notes?
• Add / update necessary tests?
• Add / update outdated documentation?

[conda-bot]

We require contributors to sign our Contributor License Agreement and we don't have one on file for @ypradat.

In order for us to review and merge your code, please e-sign the Contributor License Agreement PDF. We then need to manually verify your signature, merge the PR (conda/infrastructure#1072), and ping the bot to refresh the PR.

[travishathaway]

@conda-bot check

[codspeed-hq]

CodSpeed Performance Report

Merging #5560 will not alter performance

_{Comparing ypradat:fix-pkg-type-key-error (9f996b1) with main (3cf75b6)}

Summary

✅ 5 untouched benchmarks

[jaimergp]

pre-commit.ci autofix

[jaimergp]

@conda/builds-tools, any idea why the CI is not running here?

edit: nvm, it was the new "merge experience" beta

[jaimergp]

@conda/builds-tools - this is ready for review.