Update CI config

Author: sdispater

.travis.yml

@@ -21,6 +21,11 @@ matrix:
     - python: pypy
     - python: pypy3
 
+cache:
+  pip: true
+  directories:
+    - $HOME/.cache/pypoetry
+
 before_install:
   - pip install codecov
 
@@ -38,10 +43,10 @@ install:
         virtualenv --python="$PYENV_ROOT/versions/pypy-$PYPY_VERSION/bin/python" "$HOME/virtualenvs/pypy-$PYPY_VERSION"
         source "$HOME/virtualenvs/pypy-$PYPY_VERSION/bin/activate"
       fi
-  - virtualenv --python="$HOME/virtualenv/python3.6/bin/python" "$HOME/virtualenvs/venv-poetry"
-  - $HOME/virtualenvs/venv-poetry/bin/pip install poetry --pre
-  - $HOME/virtualenvs/venv-poetry/bin/poetry install -v
-  - $HOME/virtualenvs/venv-poetry/bin/poetry build -v
+  - wget https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py
+  - python get-poetry.py --preview
+  - poetry install -v
+  - poetry build -v
   - |
       if [ "$PENDULUM_EXTENSIONS" == "1" ]; then
         find dist/ -iname pendulum*.whl -exec unzip -o {} 'pendulum/*' -d . \;

appveyor.yml

@@ -18,22 +18,16 @@ install:
   # about it being out of date.
   - "pip install --disable-pip-version-check --user --upgrade pip"
 
-  # Create poetry virtualenv
-  - pip install virtualenv
-  - virtualenv --python="C:/Python36-x64\\python.exe" "venv-poetry"
-  - venv-poetry\\Scripts\\pip.exe install poetry --pre
-
-  # Create current python virtualenv
-  - python -m virtualenv venv
-  - venv\Scripts\activate.bat
-  - "SET VIRTUAL_ENV=venv"  # Seems that activate.bat does not set VIRTUAL_ENV
+  # Downloading and installing poetry
+  - curl -fsS -o get-poetry.py https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py
+  - python get-poetry.py --preview
 
   # Install dependencies
   - pip install codecov
-  - venv-poetry\\Scripts\\poetry.exe install -v
+  - poetry install -v
 
 test_script:
-  - "pytest --cov=pendulum --cov-config=.coveragerc tests/"
+  - "poetry run pytest --cov=pendulum --cov-config=.coveragerc tests/"
 
 after_test:
   - "codecov"