Switch to uv export for requirements generation. (#11)

* Switch to uv export for requirements generation.

* Remove requirements file

* Use correct matrix variable in CI

Author: nathanjmcdougall

.github/workflows/ci.yml

@@ -21,8 +21,8 @@ jobs:
 
       - name: Setup dependencies
         run: |
-          uv pip install --system --break-system-packages -r ./.requirements/${{ matrix.python-version }}-${{ runner.os }}.txt
-          uv pip install --system --break-system-packages pytest pytest-md pytest-emoji
+          uv export --resolution ${{ matrix.resolution }} > requirements.txt 
+          uv pip install --system --break-system-packages -r requirements.txt
 
       - name: Run pytest
         uses: pavelzw/pytest-action@510c5e90c360a185039bea56ce8b3e7e51a16507 # v2.2.0
@@ -32,3 +32,4 @@ jobs:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: [3.12]
+        resolution: [highest, lowest-direct]

.requirements/3.12-Linux.txt

@@ -26,11 +26,8 @@ necessarily listed chronologically):
 - Created a develop branch.
 - Set up sensible rulesets for branches.
 - Created a template for GitHub issues that are development tasks.
-- Created a Makefile.
-- Created a `make requirements` command to make platform-specific requirements files.
 - Ran `uv init --name usethis`.
 - Ran `uv python pin 3.12.4`.
-- Created a `.requirements` directory with Python version and OS specific files.
 
 ## Add GitHub Actions CI
 
@@ -64,8 +61,7 @@ on:
 - Created a tests folder.
 - Added a trivial test module `test_nothing.py`.
 - Add a trivial test `test_pass` to the test module.
-- Add step to CI to install pytest
-- Add step to CI to install pytest-md and pytest-emoji (used by Action).
+- Add pytest, pytest-md and pytest-emoji as dev deependencies.
 - Confirm pytest is working with `pytest tests` in the CLI.
 - Add <https://github.com/pavelzw/pytest-action> to set up pytest in CI, using the
   correct CLI args to pytest.

.requirements/3.12-Windows.txt

@@ -11,4 +11,8 @@ requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [tool.uv]
-dev-dependencies = ["pytest>=8.3.2"]
+dev-dependencies = [
+    "pytest>=8.3.2",
+    "pytest-md>=0.2.0",
+    "pytest-emoji>=0.2.0",
+]