Test on Ubuntu/macOS/Windows

Also just use a default bash shell for every step.

Author: weiji14

.github/workflows/ci_tests.yaml

@@ -106,11 +106,14 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [3.7]
-        os: [ubuntu-latest]
+        os: [ubuntu-20.04, macOS-10.15, windows-2019]
     env:
       # LD_LIBRARY_PATH: ${{ github.workspace }}/gmt/lib:$LD_LIBRARY_PATH
       GMT_INSTALL_DIR: ${{ github.workspace }}/gmt-install-dir
       GMT_LIBRARY_PATH: ${{ github.workspace }}/gmt-install-dir/lib
+    defaults:
+      run:
+        shell: bash -l {0}
 
     steps:
       # Checkout current git repository
@@ -130,12 +133,10 @@ jobs:
 
       # Install build dependencies from conda-forge
       - name: Install build dependencies
-        shell: bash -l {0}
         run: conda install cmake libblas libcblas liblapack fftw gdal ghostscript libnetcdf hdf5 zlib curl pcre gshhg-gmt dcw-gmt pytest pytest-cov pytest-mpl
 
       # Install GMT master branch
       - name: Install GMT from master
-        shell: bash -l {0}
         run: curl https://raw.githubusercontent.com/GenericMappingTools/gmt/master/ci/build-gmt-master.sh | bash
 
       # Cache the ${HOME}/.gmt directory, for docs and testing
@@ -151,12 +152,11 @@ jobs:
 
       # Workaround for the timeouts of 'gmt which' on Linux and Windows
       - name: Download remote data using wget (Linux & Windows)
-        shell: bash -l {0}
         run: |
           if [ "$RUNNER_OS" == "Windows" ]; then choco install wget; fi  # install wget on Windows
           mkdir ~/.gmt ~/.gmt/cache ~/.gmt/server
           wget --no-check-certificate https://oceania.generic-mapping-tools.org/gmt_hash_server.txt -P ~/.gmt/server/
-          for data in earth_relief_60m.grd earth_relief_30m.grd earth_relief_10m.grd; do
+          for data in earth_relief_01d.grd earth_relief_30m.grd earth_relief_10m.grd; do
             wget --no-check-certificate https://oceania.generic-mapping-tools.org/${data} -P ~/.gmt/server/
           done
           for data in ridge.txt Table_5_11.txt tut_bathy.nc tut_quakes.ngdc tut_ship.xyz usgs_quakes_22.txt; do
@@ -166,18 +166,15 @@ jobs:
 
       # Download remote files, if not already cached
       - name: Download remote data (macOS)
-        shell: bash -l {0}
         run: gmt which -Gu @earth_relief_60m @earth_relief_30m @earth_relief_10m @ridge.txt @Table_5_11.txt @tut_bathy.nc @tut_quakes.ngdc @tut_ship.xyz @usgs_quakes_22.txt
         if: steps.cache2.outputs.cache-hit != 'true' && runner.os == 'macOS'
 
       # Install the package that we want to test
       - name: Install the package
-        shell: bash -l {0}
         run: |
           python setup.py sdist --formats=zip
           pip install dist/*
 
       # Run the tests
       - name: Test with pytest
-        shell: bash -l {0}
         run: make test PYTEST_EXTRA="-r P"