build: switch to Poetry

.github/workflows/build.yml

@@ -17,21 +17,10 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
-        run: python3 -m pip install .[test]
+        run: |
+          python3 -m pip install poetry
+          poetry install
+      - name: Run style check
+        run: poetry run pre-commit run -a
       - name: Run tests
-        run: pytest
-
-  style:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v2
-    - name: Setup python
-      uses: actions/setup-python@v2
-      with:
-        python-version: 3.9
-        architecture: x64
-    - name: Install pre-commit
-      run: pip install pre-commit
-    - name: Run pre-commit
-      run: pre-commit run -a
+        run: poetry run pytest

.gitignore

@@ -1 +1,3 @@
+/dist
+/build
 .coverage

README.md

@@ -83,5 +83,20 @@ pip install --user ass-parser
 
 ## Contributing
 
-This project uses [precommit](https://pre-commit.com/). You can install it with
-`python3 -m pip install --user pre-commit` and running `pre-commit install`.
+```sh
+# Clone the repository:
+git clone https://github.com/bubblesub/ass_parser.git
+cd ass_parser
+
+# Install to a local venv:
+poetry install
+
+# Install pre-commit hooks:
+poetry run pre-commit install
+
+# Enter the venv:
+poetry shell
+```
+
+This project uses [poetry](https://python-poetry.org/) for packaging,
+install instructions at [poetry#installation](https://python-poetry.org/docs/#installation)