modernize CI setup (#13)

- use GitHub Actions for CI
- use pre-commit (black, flake8, pyupgrade)
- add support for Python 3.9

.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", "pypy3"]
+
+    # 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

@@ -1,5 +1,14 @@
 repos:
   - repo: https://github.com/psf/black
-    rev: stable
+    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]

CHANGES.txt

@@ -19,6 +19,8 @@ CHANGES
 
 - Make Python 3.6 the minimal version
 
+- Use GitHub Actions for CI.
+
 0.8 (2016-12-28)
 ================
 

CREDITS.txt

@@ -5,4 +5,6 @@ CREDITS
 
 * Denis Krienbühl (bug reports)
 
+* Jürgen Gmach (CI)
+
 * Special thanks to CONTACT software.

README.rst

@@ -1,3 +1,17 @@
+.. image:: https://github.com/morepath/more.transaction/workflows/CI/badge.svg?branch=master
+   :target: https://github.com/morepath/more.transaction/actions?workflow=CI
+   :alt: CI Status
+
+.. image:: https://coveralls.io/repos/github/morepath/more.transaction/badge.svg?branch=master
+    :target: https://coveralls.io/github/morepath/more.transaction?branch=master
+
+.. image:: https://img.shields.io/pypi/v/more.transaction.svg
+  :target: https://pypi.org/project/more.transaction/
+
+.. image:: https://img.shields.io/pypi/pyversions/more.transaction.svg
+  :target: https://pypi.org/project/more.transaction/
+
+
 more.transaction: SQLAlchemy and ZODB integration for Morepath
 ==============================================================
 
@@ -9,12 +23,3 @@ See https://github.com/morepath/morepath_sqlalchemy for a demo.
 .. _transaction: https://pypi.python.org/pypi/transaction
 
 .. _Morepath: http://morepath.readthedocs.org
-
-Build Status
-------------
-
-.. image:: https://travis-ci.com/morepath/more.transaction.svg?branch=master
-    :target: https://travis-ci.com/morepath/more.transaction
-
-.. image:: https://coveralls.io/repos/morepath/more.transaction/badge.svg?branch=master
-    :target: https://coveralls.io/r/morepath/more.transaction?branch=master

more/transaction/tests/test_default_commit_veto.py

@@ -60,7 +60,7 @@ def test_it_true_x_tm_anythingelse():
     assert callFUT(response)
 
 
-class DummyRequest(object):
+class DummyRequest:
     path_info = "/"
 
     def __init__(self):
@@ -71,7 +71,7 @@ def make_body_seekable(self):
         self.made_seekable += 1
 
 
-class DummyResponse(object):
+class DummyResponse:
     def __init__(self, status="200 OK", headers=None):
         self.status = status
         if headers is None: