potiuk opened a new pull request, #36106:
URL: https://github.com/apache/airflow/pull/36106
The change #35856 optimized waiting time before PROD image builds start -
rather than waiting for full constratints generation, the PROD image building
just used source constraints generated right after building the CI image
quickly. This is fine for main because there we install airflow and packages
using constraints from sources, but for release branches we use the provider
constraints - in order to be able to install providers from PyPI rather than
from sources.
This means that we have to wait for constraints generation to complete
before we start building PROD images - because we need to download the
constraints generated there to use them.
Unfortunately GitHub Actions do not have conditional dependencies depending
on where the workflow is run - so instead we have to effectively duplicate
PROD build steps and skip steps in them instead.
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