Migrate to using uv + hatchling

.github/renovate.json

@@ -1,5 +1,11 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-    "extends": ["config:recommended"],
-    "dependencyDashboard": false
+    "extends": [
+        "config:recommended"
+    ],
+    "dependencyDashboard": false,
+    "lockFileMaintenance": {
+        "enabled": true
+    },
+    "prHourlyLimit": 5
 }

.github/workflows/ci.yml

@@ -27,26 +27,24 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Setup python
-        uses: actions/setup-python@v5
+      - name: Install the latest version of uv
+        uses: astral-sh/setup-uv@v5
         with:
           python-version: ${{ matrix.python-version }}
 
       - name: Test Installation
         shell: bash
         run: |
-          pip install -r dev-requirements/build.txt
-
-          pip install .
-          pip uninstall -y hikari
+          uv pip install .
+          uv pip uninstall -y hikari
 
-          pip install .[speedups]
-          pip uninstall -y hikari
+          uv pip install .[speedups]
+          uv pip uninstall -y hikari
 
       - name: Run tests
         shell: bash
         run: |
-          pip install -r dev-requirements.txt
+          uv pip install nox
 
           nox -s pytest
           nox -s pytest-all-features -- --cov-append
@@ -118,15 +116,18 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Setup python
-        uses: actions/setup-python@v5
+      - name: Setup uv
+        uses: astral-sh/setup-uv@v5
         with:
           python-version: 3.9
 
+      - name: Install nox
+        run: |
+          uv pip install nox
+
       - name: Check stubs
         if: always()
         run: |
-          pip install -r dev-requirements.txt
           nox -s generate-stubs
           if [ "$(git status --short)" ]; then
             echo "Stubs were not updated accordingly to the changes. Please run 'nox -s generate-stubs' and commit the changes to fix this."

.github/workflows/fragments-check.yml

@@ -19,14 +19,15 @@ jobs:
           # needs a non-shallow clone.
           fetch-depth: 0
 
-      - name: Setup python
-        uses: actions/setup-python@v5
+      - name: Setup uv
+        uses: astral-sh/setup-uv@v5
         with:
           python-version: 3.9
 
       - name: Check if changelog fragment was added
         run: |
-          pip install -r dev-requirements/towncrier.txt
+          # FIXME: Temporary - https://github.com/astral-sh/uv/issues/8590
+          uv export --only-group=towncrier | uv pip install --requirements=-
 
           if ! towncrier check --compare-with origin/${{ github.base_ref }}; then
             exit 1

.github/workflows/prepare-release.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       version:
-        description: 'The version to prepare the release for'
+        description: "The version to prepare the release for"
         required: true
 
 jobs:
@@ -31,8 +31,8 @@ jobs:
           git config --global user.name "hikari-bot"
           git config --global user.email "90276125+hikari-bot[bot]@users.noreply.github.com"
 
-      - name: Setup python
-        uses: actions/setup-python@v5
+      - name: Setup uv
+        uses: astral-sh/setup-uv@v5
         with:
           python-version: 3.9
 

.github/workflows/release.yml

@@ -26,28 +26,15 @@ jobs:
           git config --global user.name "hikari-bot"
           git config --global user.email "90276125+hikari-bot[bot]@users.noreply.github.com"
 
-      - name: Setup python
-        uses: actions/setup-python@v5
+      - name: Setup uv
+        uses: astral-sh/setup-uv@v5
         with:
           python-version: 3.9
 
-      - name: Temporarily disable "include administrators" branch protection
-        uses: benjefferies/[email protected]
-        with:
-          access_token: ${{ steps.generate_token.outputs.token }}
-          enforce_admins: false
-
       - name: Release
         env:
           VERSION: ${{ github.event.release.tag_name }}
           DEPLOY_WEBHOOK_URL: ${{ secrets.DEPLOY_WEBHOOK_URL }}
-          TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
-          TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
+          UV_PUBLISH_USERNAME: ${{ secrets.TWINE_USERNAME }}
+          UV_PUBLISH_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
         run: bash scripts/ci/release.sh
-
-      - name: Re-enable "include administrators" branch protection
-        uses: benjefferies/[email protected]
-        if: always()
-        with:
-          access_token: ${{ steps.generate_token.outputs.token }}
-          enforce_admins: true

pipelines/audit.nox.py

@@ -29,7 +29,7 @@
 @nox.session()
 def audit(session: nox.Session) -> None:
     """Perform dependency scanning."""
-    session.install(*nox.dev_requirements("audit"))
+    session.install(*nox.dev_groups("audit"))
     session.run(
         "pip-audit",
         "-r",

pipelines/codespell.nox.py

@@ -30,7 +30,7 @@
 @nox.session()
 def codespell(session: nox.Session) -> None:
     """Run codespell to check for spelling mistakes."""
-    session.install(*nox.dev_requirements("codespell"))
+    session.install(*nox.dev_groups("codespell"))
     session.run(
         "codespell",
         "--builtin",

pipelines/flake8.nox.py

@@ -40,7 +40,7 @@ def flake8_html(session: nox.Session) -> None:
 
 
 def _flake8(session: nox.Session, extra_args: typing.Sequence[str] = ()) -> None:
-    session.install("-r", "requirements.txt", *nox.dev_requirements("flake8"))
+    session.install(".", *nox.dev_groups("flake8"))
     session.run(
         "flake8",
         "--statistics",

pipelines/format.nox.py

@@ -38,7 +38,7 @@
 @nox.session()
 def reformat_code(session: nox.Session) -> None:
     """Remove trailing whitespace in source and then run ruff code formatter."""
-    session.install(*nox.dev_requirements("ruff"))
+    session.install(*nox.dev_groups("ruff"))
 
     remove_trailing_whitespaces(session)
 
@@ -52,7 +52,7 @@ def reformat_code(session: nox.Session) -> None:
 @nox.session()
 def check_reformat_code(session: nox.Session) -> None:
     """TEMPORARY: Check if code is properly formatted."""
-    session.install(*nox.dev_requirements("ruff"))
+    session.install(*nox.dev_groups("ruff"))
 
     # At the time of writing, sorting imports is not done when running formatting
     # and needs to be done with ruff check

pipelines/mkdocs.nox.py

@@ -42,7 +42,7 @@ def mkdocs(session: nox.Session):
     """Generate docs using mkdocs."""
     _setup_environ(session)
 
-    session.install("-e", ".", *nox.dev_requirements("mkdocs"))
+    session.install(".", *nox.dev_groups("mkdocs"))
 
     session.run("mkdocs", "build", "-d", config.DOCUMENTATION_OUTPUT_PATH)
 
@@ -52,7 +52,7 @@ def mkdocs_serve(session: nox.Session):
     """Start an HTTP server that serves the generated docs in real time."""
     _setup_environ(session)
 
-    session.install("-e", ".", *nox.dev_requirements("mkdocs"))
+    session.install(".", *nox.dev_groups("mkdocs"))
 
     if "--no-reload" in session.posargs:
         session.run("mkdocs", "serve", "--no-livereload")

pipelines/mypy.nox.py

@@ -36,15 +36,7 @@
 @nox.session()
 def mypy(session: nox.Session) -> None:
     """Perform static type analysis on Python source code using mypy."""
-    session.install(
-        "-r",
-        "requirements.txt",
-        "-r",
-        "speedup-requirements.txt",
-        "-r",
-        "server-requirements.txt",
-        *nox.dev_requirements("mypy", "ruff"),
-    )
+    session.install(".[speedups, server]", *nox.dev_groups("mypy", "ruff"))
 
     _generate_stubs(session)
 
@@ -55,7 +47,7 @@ def mypy(session: nox.Session) -> None:
 @nox.session()
 def generate_stubs(session: nox.Session) -> None:
     """Generate the stubs for the package."""
-    session.install(*nox.dev_requirements("mypy", "ruff"))
+    session.install(*nox.dev_groups("mypy", "ruff"))
     _generate_stubs(session)
 
 

pipelines/nox.py

@@ -23,15 +23,12 @@
 
 from __future__ import annotations
 
-import os as _os
 import typing as _typing
 
 from nox import options as _options
 from nox import session as _session
 from nox.sessions import Session
 
-from pipelines import config as _pipelines_config
-
 # Default sessions should be defined here
 _options.sessions = ["reformat-code", "codespell", "pytest", "flake8", "slotscheck", "mypy", "verify-types"]
 _options.default_venv_backend = "uv|venv"
@@ -48,10 +45,10 @@ def decorator(func: _NoxCallbackSig) -> _NoxCallbackSig:
     return decorator
 
 
-def dev_requirements(*dependencies: str) -> _typing.Sequence[str]:
+def dev_groups(*groups: str) -> _typing.Sequence[str]:
     args = []
 
-    for dep in dependencies:
-        args.extend(("-r", _os.path.join(_pipelines_config.DEV_REQUIREMENTS_DIRECTORY, f"{dep}.txt")))
+    for group in groups:
+        args.extend(("--group", group))
 
     return args

pipelines/pyright.nox.py

@@ -35,20 +35,12 @@ def pyright(session: nox.Session) -> None:
     as hikari does not have 100% compatibility with pyright just yet. This
     exists to make it easier to test and eventually reach that 100% compatibility.
     """
-    session.install(
-        "-r",
-        "requirements.txt",
-        "-r",
-        "speedup-requirements.txt",
-        "-r",
-        "server-requirements.txt",
-        *nox.dev_requirements("pyright"),
-    )
+    session.install(".[speedups, server]", *nox.dev_groups("pyright"))
     session.run("pyright")
 
 
 @nox.session()
 def verify_types(session: nox.Session) -> None:
     """Verify the "type completeness" of types exported by the library using Pyright."""
-    session.install(".", *nox.dev_requirements("pyright"))
+    session.install(".", *nox.dev_groups("pyright"))
     session.run("pyright", "--verifytypes", config.MAIN_PACKAGE, "--ignoreexternal")

pipelines/pytest.nox.py

@@ -59,17 +59,13 @@ def pytest_all_features(session: nox.Session) -> None:
     Coverage can be disabled with the `--skip-coverage` flag.
     """
 
-    _pytest(
-        session,
-        extra_install=("-r", "server-requirements.txt", "-r", "speedup-requirements.txt"),
-        python_flags=("-OO",),
-    )
+    _pytest(session, extra_install=(".[speedups, server]",), python_flags=("-OO",))
 
 
 def _pytest(
     session: nox.Session, *, extra_install: typing.Sequence[str] = (), python_flags: typing.Sequence[str] = ()
 ) -> None:
-    session.install("-r", "requirements.txt", *extra_install, *nox.dev_requirements("pytest"))
+    session.install(".", *extra_install, *nox.dev_groups("pytest"))
 
     if "--skip-coverage" in session.posargs:
         session.posargs.remove("--skip-coverage")

pipelines/slotscheck.nox.py

@@ -30,5 +30,5 @@
 @nox.session()
 def slotscheck(session: nox.Session) -> None:
     """Check for common slotting mistakes."""
-    session.install(".", *nox.dev_requirements("slotscheck"))
+    session.install(".", *nox.dev_groups("slotscheck"))
     session.run("slotscheck", "-m", config.MAIN_PACKAGE)

pipelines/twemoji.nox.py

@@ -27,5 +27,5 @@
 @nox.session()
 def twemoji_test(session: nox.Session):
     """Brute-force test all possible Twemoji mappings for Discord unicode emojis."""
-    session.install("-e", ".")
+    session.install(".")
     session.run("python", "scripts/ci/test_twemoji_mapping.py", session.create_tmp())

pyproject.toml

@@ -19,15 +19,12 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 [build-system]
-requires = ["wheel", "setuptools", "setuptools-scm"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling>=1.14"]
+build-backend = "hatchling.build"
 
-[tool.setuptools.packages.find]
-where = ["."]
-include = ["hikari*"]
-
-[tool.setuptools.dynamic]
-version = { attr = "hikari._about.__version__" }
+[tool.hatch.version]
+path = "hikari/_about.py"
+pattern = '__version__: typing\.Final\[str\] = \"(?P<version>[^\"]+)\"'
 
 [project]
 dynamic = ["version"]
@@ -119,7 +116,7 @@ mkdocs = [
     # Minify
     "mkdocs-minify-plugin==0.8.0",
     # Towncrier draft changelogs
-    "mkdocs-towncrier==0.1.3",
+    "mkdocs-towncrier==0.1.4",
     # Image viewer ext
     # "mkdocs-glightbox==0.3.7",
 ]
@@ -139,6 +136,9 @@ ruff = ["ruff==0.9.9"]
 slotscheck = ["slotscheck==0.19.1"]
 towncrier = ["towncrier==24.8.0"]
 
+[tool.uv]
+required-version = "~=0.5"
+
 [tool.ruff]
 line-length = 120
 target-version = "py39"

scripts/ci/prepare-release.sh

@@ -35,7 +35,8 @@ sed "/^__docs__.*/, \${s||__docs__: typing.Final[str] = \"https://docs.hikari-py
 echo "===== UPDATING CHANGELOG ====="
 echo "-- Installing dependencies --"
 # Installing our own package is necessary to have towncrier detect the version
-pip install -r dev-requirements/towncrier.txt -e .
+# FIXME: Change to allow also just using pip
+uv pip install --group towncrier .
 
 echo "-- Running towncrier --"
 towncrier --yes