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synapse/.ci/scripts/prepare_old_deps.sh
David Robertson b88cfe6d41
Require poetry>=1.3.2 ()
* Upgrade to new lockfile format

Now requires poetry >= 1.2.2 to read and poetry >= 1.3.0 to write.

Cheat sheet:

```
poetry --version
poetry show > scratch/before
pipx upgrade poetry
poetry --version
poetry show > scratch/after
diff scratch{before,after} && echo "no change!"
```

* Use Poetry 1.3.2 when reading or writing lockfile

* Remove unneeded(?) poetry dep for cibuildwheel

* Update docs

* Remove redundant call to setup-python

* Remove outdated comments related to Poetry 1.x

* Remove outdated docs line

was fixed in 

* Minor improvements to poetry cheat sheet

* Invoke setup-python-poetry with explicit version

Not sure about this. It's hardcoding versions everywhere.

* Changelog

* Check the lockfile is version 2.0

Might one day incorporate other checks like 

* Typo fixes, thanks Sean

Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>

Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
2023-01-17 18:04:44 +00:00

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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.
set -ex
# 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.
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 toml wheel
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"
pip install poetry==1.3.2
poetry lock
echo "::group::Patched pyproject.toml"
cat pyproject.toml
echo "::endgroup::"
echo "::group::Lockfile after patch"
cat poetry.lock
echo "::endgroup::"