Build with CircleCI (#5)

* Create CircleCI config

* Add workaround to publish coveralls from non-travis CI

Found at eddyxu/cpp-coveralls#143 (comment)

* Install PyYAML for cpp-coveralls

It needs this to parse it's own config

* Rename docker workdir to "app"

* Copy .git into the container

since CircleCI doesn't support mounts

.circleci/config.yml

@@ -0,0 +1,29 @@
+version: 2.1
+
+jobs:
+  build:
+    docker:
+      - image: cimg/base:stable
+    steps:
+      - checkout
+      - setup_remote_docker:
+          docker_layer_caching: true
+      - run:
+          name: Build Docker Container
+          command: docker build -t app .
+      - run:
+          name: Run Docker Tests
+          command: |
+            docker create --rm \
+            -e TRAVIS_JOB_ID=$CIRCLE_BUILD_NUM \
+            -e COVERALLS_REPO_TOKEN=$COVERALLS_REPO_TOKEN \
+            --name app \
+            app make coveralls
+            # CircleCI doesn't allow mounts/volumes on the docker runner
+            docker cp .git app:/app/.git
+            docker start -a app
+
+workflows:
+  default:
+    jobs:
+      - build

Dockerfile

@@ -1,8 +1,8 @@
 FROM ubuntu
 
 RUN apt-get update && apt-get -y install build-essential git python3-pip
-RUN pip install cpp-coveralls
+RUN pip install 'pyyaml<6' cpp-coveralls
 
-COPY . /src
-WORKDIR src
+COPY . /app
+WORKDIR app
 CMD make test

Makefile

@@ -77,7 +77,10 @@ $(TEST_OUT): $(TEST_OBJS) $(TOBJS)
 test: $(TEST_OUT)
 	$<
 
-coveralls: test
+.coveralls.yml:
+	echo service_name: circleci > .coveralls.yml
+
+coveralls: test .coveralls.yml
 	coveralls -b . -e external -e tests
 
 test-tidy: