drop travis

* port check-readme to twine check before dist upload
* port self install tests to github
* artifact downloads

Author: RonnyPfannschmidt

.github/workflows/python-tests.yml

@@ -6,7 +6,7 @@ on:
     branches: [master]
 
 jobs:
-  build:
+  test:
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -29,11 +29,32 @@ jobs:
       - run: pip install -e .[toml] pytest
       - run: pytest
 
+  check_selfinstall:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python_version: [ '2.7', '3.5', '3.6', '3.7', '3.8', 'pypy2', 'pypy3' ]
+    name: check self install - Python ${{ matrix.python_version }}
+    steps:
+      - uses: actions/checkout@v1
+      - name: Setup python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python_version }}
+          architecture: x64
+      # self install testing needs some clarity
+      # so its being executed without any other tools running
+      - run: pip install -U setuptools
+      - run: python setup.py sdist
+      - run: easy_install dist/*
+      - run: python testing/check_self_install.py
+
 
   eggs:
     runs-on: ubuntu-latest
 
-    needs: [build]
+    needs: [test]
     name: Python ${{ matrix.python_version }} eggs
     strategy:
       matrix:
@@ -59,7 +80,7 @@ jobs:
   dist:
     runs-on: ubuntu-latest
 
-    needs: [build]
+    needs: [test]
     name: Python bdist/wheel
     steps:
     - uses: actions/checkout@v1
@@ -78,15 +99,32 @@ jobs:
         name: dist
         path: dist
 
+
+  dist_check:
+    runs-on: ubuntu-latest
+    needs: [eggs, dist]
+    steps:
+    - uses: actions/setup-python@v2
+      with:
+        python-version: "3.8"
+    - name: Install dependencies
+      run: pip install twine
+    - uses: actions/download-artifact@v2
+      with:
+        name: dist
+        path: dist
+    - run: twine check dist/*
+
   dist_upload:
 
     runs-on: ubuntu-latest
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags') && github.repository == 'pypa/setuptools_scm'
-    needs: [eggs, dist]
+    needs: [dist_check]
     steps:
     - uses: actions/download-artifact@v2
       with:
         name: dist
+        path: dist
     - name: Publish package to PyPI
       uses: pypa/gh-action-pypi-publish@master
       with:

.gitignore

@@ -20,6 +20,8 @@ __pycache__/
 # Distribution / packaging
 .env/
 env/
+.venv/
+venv/
 build/
 dist/
 .eggs/

.travis.yml

@@ -0,0 +1,5 @@
+import pkg_resources
+import setuptools_scm
+
+dist = pkg_resources.get_distribution("setuptools_scm")
+assert dist.version == setuptools_scm.get_version(), dist.version