chore(build): docker build uses the current git directory as the npm package

This means we can build and test local changes, not just the latest published version.

Fixes #114 and merges #118.

.travis.yml

@@ -33,7 +33,7 @@ jobs:
         script:
           - DOCKER_IMAGE="thumbsupgallery/thumbsup"
           - docker login -u "${DOCKER_USERNAME}" -p "${DOCKER_PASSWORD}"
-          - docker build -f Dockerfile.release -t "${DOCKER_IMAGE}:${TRAVIS_TAG}" --build-arg "PACKAGE_VERSION=${TRAVIS_TAG}" .
+          - docker build -f Dockerfile.release -t "${DOCKER_IMAGE}:${TRAVIS_TAG}" .
           - docker tag "${DOCKER_IMAGE}:${TRAVIS_TAG}" "${DOCKER_IMAGE}:latest"
           - docker push "${DOCKER_IMAGE}:${TRAVIS_TAG}"
           - docker push "${DOCKER_IMAGE}:latest"

Dockerfile.release

@@ -6,13 +6,8 @@ FROM thumbsupgallery/build:alpine as build
 
 # Install thumbsup locally
 WORKDIR /thumbsup
-ARG PACKAGE_VERSION
-RUN if [ -z "${PACKAGE_VERSION}" ]; then \
-      echo "Please specify --build-arg PACKAGE_VERSION=<2.4.1>"; \
-      exit 1; \
-    fi;
-RUN echo "Installing thumbsup@${PACKAGE_VERSION}"
-RUN npm install thumbsup@${PACKAGE_VERSION}
+COPY . /thumbsup_repo
+RUN npm install --production "git+file:///thumbsup_repo" && rm -rf /thumbsup_repo
 
 # ------------------------------------------------
 # Runtime image