Add support for GitHub Actions

Closes pypa#159

.github/workflows/test.yml

@@ -0,0 +1,28 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    name: Test cibuildwheel on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-18.04, windows-latest, macOS-10.14]
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-python@v1
+      name: Install Python ${{ matrix.python_version }}
+      with:
+        python-version: "3.7"
+
+    - name: Install dependencies
+      run: |
+        python -m pip install -r requirements-dev.txt
+    - name: Install Visual C++ for Python 2.7
+      if: startsWith(matrix.os, 'windows')
+      run: |
+        choco install vcpython27 -f -y
+    - name: Test cibuildwheel
+      run: |
+        python ./bin/run_tests.py

cibuildwheel/__main__.py

@@ -83,6 +83,13 @@ def main():
                 platform = 'macos'
             elif os.environ['AGENT_OS'] == 'Windows_NT':
                 platform = 'windows'
+        elif 'GITHUB_WORKFLOW' in os.environ:
+            if sys.platform.startswith('linux'):
+                platform = 'linux'
+            elif sys.platform.startswith('darwin'):
+                platform = 'macos'
+            else:
+                platform = 'windows'
 
         if platform is None:
             print('cibuildwheel: Unable to detect platform. cibuildwheel should run on your CI server, '

cibuildwheel/windows.py

@@ -16,8 +16,9 @@
 from .util import prepare_command, get_build_verbosity_extra_flags
 
 
-IS_RUNNING_ON_AZURE = os.path.exists('C:\\hostedtoolcache')
+IS_RUNNING_ON_GITHUB = os.environ.get('GITHUB_WORKFLOW', None) is not None
 IS_RUNNING_ON_TRAVIS = os.environ.get('TRAVIS_OS_NAME') == 'windows'
+IS_RUNNING_ON_APPVEYOR = os.environ.get('APPVEYOR', 'false').lower() == 'true'
 
 
 def get_python_path(config):
@@ -51,6 +52,9 @@ def get_python_configurations(build_selector):
         # try with (and similar): msiexec /i VCForPython27.msi ALLUSERS=1 ACCEPT=YES /passive
         python_configurations = [c for c in python_configurations if not c.version.startswith('2.7.')]
 
+    if IS_RUNNING_ON_GITHUB:
+        python_configurations = [c for c in python_configurations if  not c.version.startswith('3.5.')]
+
      # skip builds as required
     python_configurations = [c for c in python_configurations if build_selector(c.identifier)]
 
@@ -74,18 +78,17 @@ def download(url, dest):
                 file.write(response.read())
         finally:
             response.close()
-    if IS_RUNNING_ON_AZURE or IS_RUNNING_ON_TRAVIS:
-        shell = simple_shell
-    else:
+    if IS_RUNNING_ON_APPVEYOR:
         run_with_env = os.path.abspath(os.path.join(os.path.dirname(__file__), 'resources', 'appveyor_run_with_env.cmd'))
-
         # run_with_env is a cmd file that sets the right environment variables
         # to build on AppVeyor.
         def shell(args, env=None, cwd=None):
             # print the command executing for the logs
             print('+ ' + ' '.join(args))
             args = ['cmd', '/E:ON', '/V:ON', '/C', run_with_env] + args
             return subprocess.check_call(' '.join(args), env=env, cwd=cwd)
+    else:
+        shell = simple_shell
 
     abs_project_dir = os.path.abspath(project_dir)
     temp_dir = tempfile.mkdtemp(prefix='cibuildwheel')

test/shared/utils.py

@@ -6,7 +6,8 @@
 
 import subprocess, sys, os
 
-IS_WINDOWS_RUNNING_ON_AZURE = os.path.exists('C:\\hostedtoolcache')
+
+IS_WINDOWS_RUNNING_ON_GITHUB = os.path.exists('C:\\hostedtoolcache') and os.environ.get('GITHUB_WORKFLOW', None) is not None
 IS_WINDOWS_RUNNING_ON_TRAVIS = os.environ.get('TRAVIS_OS_NAME') == 'windows'
 
 
@@ -102,6 +103,10 @@ def expected_wheels(package_name, package_version):
         # Python 2.7 isn't supported on Travis.
         templates = [t for t in templates if '-cp27-' not in t]
 
+    if IS_WINDOWS_RUNNING_ON_GITHUB:
+        # Python 3.5 isn't supported on GitHub.
+        templates = [t for t in templates if '-cp35-' not in t]
+
     return [filename.format(package_name=package_name, package_version=package_version)
             for filename in templates]