Adopt modern packaging

- drop python 2 / Django < 2.2 / django CMS < 3.7
- bumpversion
- towncrier
- github actions
- pre-commit
- github templates

.coveragerc

@@ -1,20 +1,34 @@
 [run]
-source = djangocms_installer
 branch = True
+source = djangocms_installer
 omit =
     djangocms_installer/share/*
     djangocms_installer/__main__.py
-    djangocms_installer/main.py
     djangocms_installer/compat.py
     djangocms_installer/config/urls_i18n.py
     djangocms_installer/config/urls_noi18n.py
     djangocms_installer/config/settings.py
-    tests/*
 
 [report]
+omit = *migrations*,*tests*,*test_utils*
+# Regexes for lines to exclude from consideration
 exclude_lines =
+    # Have to re-enable the standard pragma
     pragma: no cover
+
+    # Don't complain about missing debug-only code:
     def __repr__
+    if self\.debug
+
+    # Don't complain if tests don't hit defensive assertion code:
     raise AssertionError
     raise NotImplementedError
+
+    # Don't complain if non-runnable code isn't run:
+    if 0:
     if __name__ == .__main__.:
+
+ignore_errors = True
+
+[html]
+directory = coverage_html

.editorconfig

@@ -8,13 +8,13 @@ end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
-max_line_length = 80
+max_line_length = 120
 
 [*.md]
 trim_trailing_whitespace = false
 
 [*.rst]
-max_line_length = 80
+max_line_length = 120
 
 [*.py]
 max_line_length = 120
@@ -28,7 +28,7 @@ max_line_length = 120
 indent_size = 2
 max_line_length = 120
 
-[*.yml]
+[*.{yml,yaml}]
 indent_size = 2
 
 [Makefile]

.github/ISSUE_TEMPLATE/---bug-report.md

@@ -17,7 +17,7 @@ Please fill in each section to help maintainers to be helpful and quick to respo
 Describe issue in general terms.
 -->
 
-## Steps to reproduce
+## Steps to reproduce
 
 <!--
 Provide clear steps to reproduce the issue.

.github/pull_request_template.md

@@ -11,8 +11,8 @@ Provide any github issue fixed (as in ``Fix #XYZ``)
 
 # Checklist
 
-* [ ] I have read the [contribution guide](https://django-app-helper.readthedocs.io/en/latest/contributing.html)
+* [ ] I have read the [contribution guide](https://djangocms-installer.readthedocs.io/en/latest/contributing.html)
 * [ ] Code lint checked via `inv lint`
-* [ ] ``changes`` file included (see [docs](https://django-app-helper.readthedocs.io/en/latest/contributing.html#pull-request-guidelines))
+* [ ] ``changes`` file included (see [docs](https://djangocms-installer.readthedocs.io/en/latest/contributing.html#pull-request-guidelines))
 * [ ] Usage documentation added in case of new features
 * [ ] Tests added

.github/workflows/lint.yml

@@ -0,0 +1,41 @@
+name: Code quality
+
+on: [push, pull_request]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    if: "!contains(github.event.head_commit.message, '[skip ci]')"
+    strategy:
+      matrix:
+        python-version: [3.8]
+        toxenv: [pep8, isort, black, pypi-description, docs, towncrier]
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        repository: ${{ github.event.pull_request.head.repo.full_name }}
+        ref: ${{ github.event.pull_request.head.ref }}
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Cache pip
+      uses: actions/cache@v1
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ matrix.toxenv }}
+        restore-keys: |
+          ${{ runner.os }}-pip-${{ matrix.toxenv }}
+    - name: Cache tox
+      uses: actions/cache@v1
+      with:
+        path: .tox
+        key: ${{ runner.os }}-lint-${{ matrix.toxenv }}-${{ hashFiles('setup.cfg') }}
+        restore-keys: |
+          ${{ runner.os }}-lint-${{ matrix.toxenv }}-
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip setuptools tox>=1.8
+    - name: Test with tox
+      run: |
+        tox -e${{ matrix.toxenv }}

.github/workflows/test.yml

@@ -1,42 +1,8 @@
-name: Linting - Tests
+name: Tox tests
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
-  lint:
-    runs-on: ubuntu-latest
-    if: "!contains(github.event.head_commit.message, '[skip ci]')"
-    strategy:
-      matrix:
-        python-version: [3.8]
-        toxenv: [pep8, isort, black, pypi-description, docs]
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Cache pip
-      uses: actions/cache@v1
-      with:
-        path: ~/.cache/pip
-        key: ${{ runner.os }}-pip-${{ matrix.toxenv }}
-        restore-keys: |
-          ${{ runner.os }}-pip-${{ matrix.toxenv }}
-    - name: Cache tox
-      uses: actions/cache@v1
-      with:
-        path: .tox
-        key: ${{ runner.os }}-lint-${{ matrix.toxenv }}-${{ hashFiles('setup.cfg') }}
-        restore-keys: |
-          ${{ runner.os }}-lint-${{ matrix.toxenv }}-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools tox>=1.8
-    - name: Test with tox
-      run: |
-        tox -e${{ matrix.toxenv }}
-
   test:
     if: "!contains(github.event.head_commit.message, '[skip ci]')"
     runs-on: ubuntu-latest
@@ -66,16 +32,17 @@ jobs:
     - name: Install dependencies
       run: |
         sudo apt-get install gettext sqlite3
-        python -m pip install --upgrade pip setuptools tox>=1.8 coveralls>=2 codecov coverage>=5
+        python -m pip install --upgrade pip tox>=3.5
     - name: Test with tox
       env:
-        TOX_ENV: ${{ format('{{py{0}}}', matrix.python-version) }}
+        TOX_ENV: py
         COMMAND: coverage run
-        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
+        COVERALLS_REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        COVERALLS_SERVICE_NAME: github
       run: |
         tox -e$TOX_ENV
-        python -mcoverage xml
-        coveralls
+        .tox/$TOX_ENV/bin/coverage xml
+        .tox/$TOX_ENV/bin/coveralls
     - uses: codecov/codecov-action@v1
       with:
         token: ${{ secrets.CODECOV_TOKEN }}

.pre-commit-config.yaml

@@ -1,9 +1,9 @@
 # See https://pre-commit.com for more information
 # See https://pre-commit.com/hooks.html for more hooks
-exclude: '(.idea|node_modules|.tox)'
+exclude: "(.idea|node_modules|.tox)"
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v2.5.0
+    rev: v3.1.0
     hooks:
       - id: trailing-whitespace
       - id: end-of-file-fixer
@@ -17,20 +17,46 @@ repos:
         args:
           - --remove
   - repo: https://github.com/timothycrosley/isort
-    rev: '4.3.21'
+    rev: "5.0.2"
     hooks:
       - id: isort
   - repo: https://github.com/psf/black
     rev: 19.10b0
     hooks:
       - id: black
   - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.8.0a2
+    rev: 3.8.3
     hooks:
       - id: flake8
+        additional_dependencies:
+          - flake8-broken-line
+          - flake8-bugbear
+          - flake8-builtins
+          - flake8-coding
+          - flake8-commas
+          - flake8-comprehensions
+          - flake8-eradicate
+          - flake8-quotes
+          - flake8-tidy-imports
+          - pep8-naming
+  - repo: https://github.com/econchick/interrogate
+    rev: 1.2.0
+    hooks:
+      - id: interrogate
+        args:
+          - "-cpyproject.toml"
+          - "--quiet"
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.2.1
+    rev: v2.6.2
     hooks:
       - id: pyupgrade
         args:
           - --py3-plus
+  - repo: local
+    hooks:
+      - id: towncrier
+        name: towncrier
+        entry: inv towncrier-check
+        language: system
+        pass_filenames: false
+        always_run: true

.pyup.yml

@@ -0,0 +1,7 @@
+update: all
+pin: False
+branch:
+schedule: "every day"
+search: True
+branch_prefix: pyup/
+close_prs: True

.readthedocs.yml

@@ -0,0 +1,15 @@
+version: 2
+
+sphinx:
+  configuration: docs/conf.py
+  fail_on_warning: true
+
+formats:
+  - epub
+  - pdf
+
+python:
+  version: 3.7
+  install:
+    - requirements: requirements-test.txt
+  system_packages: false