ci: Migrate to github actions

.github/workflows/ci.yaml

@@ -0,0 +1,37 @@
+name: CI
+on: [push, pull_request]
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform:
+        - ballerina
+        - buildpack
+        - cordova
+        - elixir
+        - go
+        - java
+        - lua
+        - nodejs
+        - perl
+        - php
+        - play
+        - pypy
+        - python
+        - ruby
+        - scratch
+        - static
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - run: make test platform=${{ matrix.platform }}
+      shell: bash
+
+  # deploy:
+  #   if: github.event_name != 'pull_request'
+  #   needs: [test]
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - uses: actions/checkout@v2

tests/Dockerfile.template

@@ -6,8 +6,14 @@ FROM platform-{PLATFORM}
 WORKDIR /tests
 ADD . /tests
 ADD common/* /tests/common/
+# These RUN true lines are an ugly hack due to
+# https://github.com/moby/moby/issues/37965 and
+# https://github.community/t/attempting-to-build-docker-image-with-copy-from-on-actions/16715
+RUN true
 ADD https://github.com/bats-core/bats-core/archive/master.tar.gz ./bats.tar.gz
+RUN true
 ADD https://github.com/bats-core/bats-support/archive/master.tar.gz ./bats-support.tar.gz
+RUN true
 ADD https://github.com/bats-core/bats-assert/archive/master.tar.gz ./bats-assert.tar.gz
 RUN sudo mkdir ./bin && \
     sudo tar -zxf bats.tar.gz && \