For the Python-based workflows we were already using `pip` caching [1],
but sadly this isn't fully functional at the moment because the caching
functionality uses `requirements.txt` to determine when to create or
invalidate the cache. However, we have two different `pip` install
commands but only a `requirements.txt` for one of them (the Fluent
linter), which means that the other job (the font tests) will not
populate the cache with its dependencies.
This can be seen by opening any font tests or Fluent linting build and
noticing that they report the exact same cache key even though their
dependencies are different. In the installation step the dependencies
are reported as "Downloading [package].whl" instead of the expected
"Using cached [package].whl".
This commit fixes the issue by explicitly defining a `requirements.txt`
file for both jobs and pointing the caching functionality to the
specific file paths to make sure that unique caches with the correct
package data are used. While we're here we also align the syntax and
step titles in the files for consistency.
[1] https://github.com/actions/setup-python?tab=readme-ov-file#caching-packages-dependencies
Python 3.14 is the current stable version, released on October 7th. The
dependencies we use also support Python 3.14 now, most importantly
`fonttools` for which the OS-specific builds have been published (see
the `cp314` wheels on https://pypi.org/project/fonttools/#files).
Python 3.13 is the current version and was released over a month ago
(see https://devguide.python.org/versions). The dependencies we use now
support Python 3.13, most importantly `fonttools` which uses OS-specific
builds and for which compatibility got introduced in
https://github.com/fonttools/fonttools/pull/3656 and the corresponding
`cp313` wheels for all distributions are published on
https://pypi.org/project/fonttools/#files.
Moreover, we fix forgotten `npx` usage in the font tests README which
was encountered while testing this patch.
I noticed the following warning in the GitHub Actions workflow logs:
`Configuration file not found: .github/linter_config.yml`
The configuration file is called `fluent_linter_config.yml` instead, so
this commit fixes the path so it points to the correct file.
Fixes 487816b.
The current stable version of Python is Python 3.12, see
https://www.python.org/downloads, so we should switch to that since
Python 3.10 is older and only receives security updates.
This commit tweaks the Fluent linter workflow to match the other
workflow files we have, so we make sure the steps have a newline between
them for better readability and align names and descriptions of steps
with how they are called in the other workflow files we have.
