Issue natcap#16 using GH Act. setup-miniconda

Using setup-miniconda as opposed to setup-conda as this resource
properly sets the GDAL_DATA and PROJ_LIB envs. Also setting GDAL to
3.0.4 as has better precision handling than 3.0.2 which is likely
related to bug fixes in handling SRS and forcing transformations in and
out of WGS84.

.github/workflows/pythonpackage.yml

@@ -11,8 +11,8 @@ jobs:
       fail-fast: false
       max-parallel: 4
       matrix:
-        python-version: [3.7]
-        os: [ubuntu-18.04]
+        python-version: [3.6, 3.7]
+        os: [ubuntu-18.04, windows-latest, macos-latest]
 
     steps:
     - uses: actions/checkout@v2
@@ -24,26 +24,46 @@ jobs:
       uses: goanpeca/setup-miniconda@v1
       with:
         activate-environment: anaconda-client-env
-        python-version: 3.7
+        python-version: ${{ matrix.python-version }}
         auto-activate-base: true
     - name: Install dependencies
       shell: bash
       run: conda upgrade -y pip setuptools
 
+    - name: Install PyGeoprocessing (Windows)
+      if: matrix.os == 'windows-latest'
+      env:
+          PIP_EXTRA_INDEX_URL: "http://pypi.naturalcapitalproject.org/simple/"
+          PIP_TRUSTED_HOST: "pypi.naturalcapitalproject.org"
+          PIP_PREFER_BINARY: 1
+      shell: bash
+      # Replace numpy and scipy with PyPI versions to circumvent import issue.
+      # https://stackoverflow.com/a/37110747/299084
+      #
+      # Shapely 1.7.0 on PyPI has GEOS cdll issues in some environments. Gohlke builds work.
+      run: |
+          $CONDA/python -m pip install shapely --index-url http://pypi.naturalcapitalproject.org/simple/ -c requirements.txt
+          $CONDA/python -m pip install -r requirements.txt
+          $CONDA/python -m pip install $PACKAGES
+          $CONDA/python setup.py install
+
     - name: Install PyGeoprocessing (Linux, Mac)
       if: matrix.os != 'windows-latest'
       shell: bash -l {0}
       run: |
           conda install --file requirements.txt
           conda install $PACKAGES
           python setup.py install
-          printenv
-          find /usr -name proj.db
 
-    - name: Test with pytest
+    - name: Lint with flake8
       shell: bash -l {0}
-      run: pytest -s
-
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
     - name: Test with pytest
       shell: bash -l {0}
       run: pytest -s
+

requirements.txt

@@ -3,7 +3,7 @@
 # This file records the packages and requirements needed in order for
 # pygeoprocessing to work as expected.
 
-GDAL>=3.0
+GDAL==3.0.4
 numpy>=1.10.1
 scipy>=0.14.1,!=0.19.1
 Shapely>=1.6.4