actions/upload-artifact rejects any path containing ':', and makepkg names
a package with an epoch `name-1:ver-rel-arch.pkg.tar.zst`. Every PR that
built such a package (cursor-cli in the sync PRs, omasnap once it gained an
epoch) failed at "Upload artifact" after a successful build, and publish
then rebuilt from scratch on merge.
The files now ride inside packages.tar for the artifact hop and come back
out with makepkg's names untouched: pacman clients and bin/publish-artifact
both require the filename to match PKGINFO, and the channels already carry
these names. publish.yml still accepts bare pre-packing artifacts until the
7-day retention drains them.
helpers/artifact-helpers.sh holds both halves; tests/artifact-helpers.sh
covers the round trip and runs with the other self-tests.
Ryan Hughes
124b067694