Start CI migration to github actions

.github/workflows/build.yml

@@ -0,0 +1,56 @@
+name: Build and test, upload to PyPI on release
+
+on: [push, pull_request]
+env:
+  CIBW_TEST_COMMAND: "cd {project} && python -m pytest tests"
+  CIBW_TEST_EXTRAS: "test"
+  CIBW_SKIP: "*musllinux*"
+  CIBW_MANYLINUX_X86_64_IMAGE: "manylinux2014"
+  CIBW_MANYLINUX_I686_IMAGE: "manylinux2014"
+  CIBW_MANYLINUX_PYPY_X86_64_IMAGE: "manylinux2014"
+  CIBW_MANYLINUX_PYPY_I686_IMAGE: "manylinux2014"
+
+jobs:
+  build_linux:
+    name: Build on Linux (${{ matrix.wheel_arch }})
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-python@v2
+        name: Install Python
+        with:
+          python-version: '3.9'
+
+      - name: Install deps
+        run: .install_deps.sh
+
+      - name: Build
+        run: .install.sh
+
+      - name: Test
+        run: .test.sh
+
+  build_macos:
+    name: Build wheels on macOS (${{ matrix.wheel_arch }})
+    runs-on: macos-10.15
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-python@v2
+        name: Install Python
+        with:
+          python-version: '3.9'
+
+      - name: Install deps
+        run: .install_deps.sh
+
+      - name: Build
+        run: .install.sh
+
+      - name: Test
+        run: .test.sh

.travis_install.sh → .install.sh

@@ -2,7 +2,7 @@
 if [ $TRAVIS_OS_NAME == 'osx' ]; then
   export PATH="$HOME/miniconda/bin:$PATH"
   source $HOME/miniconda/bin/activate
-  conda activate travis
+  conda activate ci
 fi
 
 # We do not need to actually install anything when deploying because

.travis_before_install.sh → .install_deps.sh

@@ -2,7 +2,8 @@
 echo "Prepare interpreter"
 if [ $TRAVIS_OS_NAME == 'linux' ]; then
   echo "Installing deps for linux"
-  # NOTE: leidenalg installs igraph (in a somewhat messy way for now)
+  echo "... none for now"
+  # NOTE: leidenalg installs igraph (in a somewhat messy way for now
   #sudo add-apt-repository -y ppa:igraph/ppa
   #sudo apt-get -qq update
   #sudo apt-get install igraph
@@ -23,8 +24,8 @@ elif [ $TRAVIS_OS_NAME == 'osx' ]; then
   source $HOME/miniconda/bin/activate
 
   # Make conda environment and activate
-  conda create -y -n travis python=$CONDA_PY
-  conda activate travis
+  conda create -y -n ci python=$CONDA_PY
+  conda activate ci
 
   # Use pip from conda
   conda install -y pip

.travis_test.sh → .test.sh

@@ -2,7 +2,7 @@
 if [ "$TRAVIS_OS_NAME" == 'osx' ]; then
   export PATH="$HOME/miniconda/bin:$PATH"
   source $HOME/miniconda/bin/activate
-  conda activate travis
+  conda activate ci
   PYTHON=$(which python)
   PYTEST=$(which pytest)
 else