Add appveyor.yml (poetry, pytest, pyinstaller)

appveyor.yml

@@ -0,0 +1,50 @@
+#Docs: https://www.appveyor.com/docs/appveyor-yml/
+
+#https://github.com/vasole/fisx/blob/master/appveyor.yml
+#https://github.com/sdispater/poetry/blob/master/.appveyor.yml
+#https://github.com/sdispater/pendulum/blob/master/appveyor.yml
+
+branches:
+  # whitelist
+  only:
+    - appveyor
+
+image: Visual Studio 2017
+environment:
+  matrix:
+    # For Python versions available on Appveyor, see
+    # https://www.appveyor.com/docs/windows-images-software/ or
+    # https://www.appveyor.com/docs/linux-images-software/
+    - pydir: 'C:\Python36'
+    - pydir: 'C:\Python37-x64'
+  global:
+    py: '%pydir%\python.exe'
+    APPVEYOR_SAVE_CACHE_ON_ERROR: true
+
+cache:
+- '%LOCALAPPDATA%\pypoetry\Cache -> .appveyor\clear-caches'
+    # \cache\repositories\pypi\
+    # \virtualenvs\xyz-py3.x\
+
+install:
+  - 'curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | %py%'
+  - 'refreshenv'
+
+  # Prevents: "The current Python version (2.7.15) is not supported by the project (^3.6)"
+  - 'set PATH=%pydir%;%pydir%\bin;%pydir%\Scripts;%PATH%'
+  - 'poetry install -v'  # don't pass --no-dev
+
+build_script:
+  - exit
+
+test_script:
+  - 'poetry run pytest --tb=short'
+
+after_test:
+  - 'if not %pydir%==C:\Python36 exit %e%'
+  - 'poetry build'
+  - 'poetry run pyinstaller corrscope.spec -y'
+
+artifacts:
+  - path: 'dist\*'
+  - path: 'dist\corrscope'