Using prefetch to speed up build

.travis.yml

@@ -17,10 +17,10 @@ before_install:
   - export PATH="/home/travis/.deno/bin:$PATH"
 
 script:
+  - export DENO_DIR="$PWD/cache"
+  - deno ./server.ts --prefetch
   - deno ./test.ts --allow-all
   - docker build ./ -t denocn/website
-  - docker run -d -p 3000:3000 denocn/website
-  - curl http://127.0.0.1:3000
   - docker login -u $DOCKER_USER -p $DOCKER_PASS
   - docker push denocn/website
 

Dockerfile

@@ -3,6 +3,6 @@ MAINTAINER manyuanrong "416828041@qq.com"
 
 COPY ./ /data/
 WORKDIR /data
-RUN deno ./server.ts --prefetch
+ENV DENO_DIR=/data/cache
 
 CMD [ "deno", "./server.ts", "--allow-all" ]