use GitHub Actions instead of Travis CI

... as Travis does no longer support open source projects.

Also:
- add support for Python 3.9
- use pre-commit
- use pyupgrade
- use black

Author: jugmac00

.github/workflows/main.yml

@@ -0,0 +1,50 @@
+name: CI
+
+# Controls when the action will run. 
+on:
+  # Triggers the workflow on push or pull request events
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 12 * * 0'  # run once a week on Sunday
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  tests:
+    name: "Python ${{ matrix.python-version }}"
+    runs-on: "ubuntu-latest"
+
+    strategy:
+      matrix:
+        python-version: ["3.6", "3.7", "3.8", "3.9"]
+    
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: "actions/checkout@v2"
+      - uses: "actions/setup-python@v2"
+        with:
+          python-version: "${{ matrix.python-version }}"
+      - name: "Install dependencies"
+        run: |
+          set -xe
+          python -VV
+          python -m site
+          python -m pip install --upgrade pip setuptools wheel
+          python -m pip install --upgrade virtualenv tox tox-gh-actions          
+      - name: "Run tox targets for ${{ matrix.python-version }}"
+        run: "python -m tox"
+
+      - name: "Report to coveralls"
+        # coverage is only created in the py39 environment
+        # --service=github is a workaround for bug
+        # https://github.com/coveralls-clients/coveralls-python/issues/251
+        if: "matrix.python-version == '3.9'"
+        run: |
+          pip install coveralls
+          coveralls --service=github
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.pre-commit-config.yaml

@@ -0,0 +1,14 @@
+repos:
+  - repo: https://github.com/psf/black
+    rev: 20.8b1
+    hooks:
+      - id: black
+  - repo: https://gitlab.com/pycqa/flake8
+    rev: "3.8.4"
+    hooks:
+      - id: flake8
+  - repo: https://github.com/asottile/pyupgrade
+    rev: v2.7.4
+    hooks:
+    - id: pyupgrade
+      args: [--py36-plus]

.travis.yml

@@ -4,8 +4,14 @@ CHANGES
 0.2 (unreleased)
 ================
 
-- Make Python 3.8 the default testing environment
+- Make Python 3 the default testing environment
 - Drop support for Python versions < 3.6
+- Add support for Python 3.9
+- Use GitHub Actions instead of Travis CI
+(Travis stopped supporting open source projects).
+- use pre-commit
+- use pyupgrade
+- use black
 
 
 0.1 (2016-07-06)

CHANGES.rst

@@ -1,3 +1,17 @@
+.. image:: https://github.com/morepath/morepath_static/workflows/CI/badge.svg?branch=master
+   :target: https://github.com/morepath/morepath_static/actions?workflow=CI
+   :alt: CI Status
+
+.. image:: https://coveralls.io/repos/github/morepath/morepath_static/badge.svg?branch=master
+    :target: https://coveralls.io/github/morepath/morepath_static?branch=master
+
+.. image:: https://img.shields.io/pypi/v/morepath_static.svg
+  :target: https://pypi.org/project/morepath_static/
+
+.. image:: https://img.shields.io/pypi/pyversions/morepath_static.svg
+  :target: https://pypi.org/project/morepath_static/
+
+
 Morepath_static
 ===============
 

README.rst

@@ -6,5 +6,5 @@ def run():
     morepath.run(App())
 
 
-if __name__ == '__main__':   # pragma: no cover
+if __name__ == "__main__":  # pragma: no cover
     run()

morepath_static/__main__.py

@@ -1,2 +1,2 @@
-class Root(object):
+class Root:
     pass

morepath_static/model.py

@@ -2,6 +2,6 @@
 from .model import Root
 
 
-@App.path(model=Root, path='/')
+@App.path(model=Root, path="/")
 def get_root():
     return Root()

morepath_static/path.py

@@ -8,14 +8,14 @@
 
 
 components = bower.components(
-    'app', os.path.join(os.path.dirname(__file__), 'bower_components'))
+    "app", os.path.join(os.path.dirname(__file__), "bower_components")
+)
 
 
-local = bower.local_components('local', components)
+local = bower.local_components("local", components)
 
 
-local.component(os.path.join(os.path.dirname(__file__), 'my_component'),
-                version=None)
+local.component(os.path.join(os.path.dirname(__file__), "my_component"), version=None)
 
 
 @App.static_components()

morepath_static/static.py

@@ -6,21 +6,22 @@
 def test_static_assets():
     c = Client(App())
 
-    r = c.get('/')
+    r = c.get("/")
 
-    scripts = r.html.select('script')
+    scripts = r.html.select("script")
     assert len(scripts) == 2
 
     for s in scripts:
-        c.get(s['src'])
+        c.get(s["src"])
 
 
 def test_run(monkeypatch):
     import morepath
+
     instances = []
-    monkeypatch.setattr(morepath, 'run', lambda app: instances.append(app))
+    monkeypatch.setattr(morepath, "run", lambda app: instances.append(app))
 
     run()
 
-    app, = instances
+    (app,) = instances
     assert isinstance(app, App)