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- #!/usr/bin/env bash
- # this script is run by GitHub Actions in a plain `focal` container; it
- # - installs the minimal system requirements, and poetry;
- # - patches the project definition file to refer to old versions only;
- # - creates a venv with these old versions using poetry; and finally
- # - invokes `trial` to run the tests with old deps.
- # Prevent tzdata from asking for user input
- export DEBIAN_FRONTEND=noninteractive
- set -ex
- apt-get update
- apt-get install -y \
- python3 python3-dev python3-pip python3-venv pipx \
- libxml2-dev libxslt-dev xmlsec1 zlib1g-dev libjpeg-dev libwebp-dev
- export LANG="C.UTF-8"
- # Prevent virtualenv from auto-updating pip to an incompatible version
- export VIRTUALENV_NO_DOWNLOAD=1
- # TODO: in the future, we could use an implementation of
- # https://github.com/python-poetry/poetry/issues/3527
- # https://github.com/pypa/pip/issues/8085
- # to select the lowest possible versions, rather than resorting to this sed script.
- # Patch the project definitions in-place:
- # - Replace all lower and tilde bounds with exact bounds
- # - Replace all caret bounds---but not the one that defines the supported Python version!
- # - Delete all lines referring to psycopg2 --- so no testing of postgres support.
- # - Use pyopenssl 17.0, which is the oldest version that works with
- # a `cryptography` compiled against OpenSSL 1.1.
- # - Omit systemd: we're not logging to journal here.
- # TODO: also replace caret bounds, see https://python-poetry.org/docs/dependency-specification/#version-constraints
- # We don't use these yet, but IIRC they are the default bound used when you `poetry add`.
- # The sed expression 's/\^/==/g' ought to do the trick. But it would also change
- # `python = "^3.7"` to `python = "==3.7", which would mean we fail because olddeps
- # runs on 3.8 (#12343).
- sed -i \
- -e "s/[~>]=/==/g" \
- -e '/^python = "^/!s/\^/==/g' \
- -e "/psycopg2/d" \
- -e 's/pyOpenSSL = "==16.0.0"/pyOpenSSL = "==17.0.0"/' \
- -e '/systemd/d' \
- pyproject.toml
- # Use poetry to do the installation. This ensures that the versions are all mutually
- # compatible (as far the package metadata declares, anyway); pip's package resolver
- # is more lax.
- #
- # Rather than `poetry install --no-dev`, we drop all dev dependencies from the
- # toml file. This means we don't have to ensure compatibility between old deps and
- # dev tools.
- pip install --user toml
- REMOVE_DEV_DEPENDENCIES="
- import toml
- with open('pyproject.toml', 'r') as f:
- data = toml.loads(f.read())
- del data['tool']['poetry']['dev-dependencies']
- with open('pyproject.toml', 'w') as f:
- toml.dump(data, f)
- "
- python3 -c "$REMOVE_DEV_DEPENDENCIES"
- pipx install poetry==1.1.12
- ~/.local/bin/poetry lock
- echo "::group::Patched pyproject.toml"
- cat pyproject.toml
- echo "::endgroup::"
- echo "::group::Lockfile after patch"
- cat poetry.lock
- echo "::endgroup::"
- ~/.local/bin/poetry install -E "all test"
- ~/.local/bin/poetry run trial --jobs=2 tests
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