downgrade/sublibrary-downgrade: add apt-packages + container inputs#89
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ChrisRackauckas merged 1 commit intoJun 13, 2026
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…provision Python/R-stack downgrade legs) Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com> Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What
Adds two optional inputs —
apt-packagesandcontainer— to the reusable downgrade workflows (downgrade.ymlandsublibrary-downgrade.yml), mirroring the inputstests.ymlalready exposes on master.Right now the downgrade legs of Python/R-stack packages cannot install their system dependencies: neither
downgrade.ymlnorsublibrary-downgrade.ymlexposeapt-packagesorcontainer, so a caller has no way to provision e.g. scipy or an R install on the downgrade job the way it already can on itstests.ymljob. This closes that gap.Changes (mirroring
tests.yml)For each workflow:
apt-packagesinput (string, default""): "Space-separated apt packages to install before building/testing (Linux only)."containerinput (string, default""): "Docker container image to run the job in, e.g. for Python-stack packages (empty string = no container)".container: ${{ inputs.container }}on the job that runs build/test (thedowngradejob indowngrade.yml; the matrixtestjob insublibrary-downgrade.yml).Install system packagesstep, gated onif: "${{ inputs.apt-packages != '' && runner.os == 'Linux' }}", placed beforejulia-actions/julia-buildpkg(after thejulia-downgrade-compatstep), matching the exact step text/placement intests.yml.downgrade.ymlandsublibrary-downgrade.ymlinput tables, mirroring thetests.ymlwording.The empty-string default for
containeris the same no-container patterntests.ymlalready uses on master, so it is accepted.actionlintis clean on both edited workflow files.Follow-up callers
Once this merges and
v1is retagged, these downgrade legs can be wired up caller-side:apt-packages/containerto provide scipy on its downgrade job.Scope
Only the two workflow files plus the README rows; no other changes.
NOTE: v1 must be retagged after merge for @v1 callers to pick this up. Ignore until reviewed by @ChrisRackauckas.