ADD CI

.gitlab-ci.yml

+# requiring the environment of NodeJS 4.2.2
+image: node:4.2.2
+#image: fibasile/docker-gitbook-cli:latest
+
+# add 'node_modules' to cache for speeding up builds
+cache:
+  paths:
+    - node_modules/ # Node modules and dependencies
+
+before_script:
+  - apt-get update && apt-get install -y calibre
+  - npm install gitbook-cli -g # install gitbook
+  - gitbook fetch latest # fetch latest stable version
+  #- gitbook fetch pre # fetch latest pre-release version
+  #- gitbook fetch 2.6.7 # fetch specific version
+
+# the 'pages' job will deploy and build your site to the 'public' path
+pages:
+  stage: deploy
+  script:
+    - gitbook install
+    - gitbook build . public # build to public path
+    - gitbook pdf . public/book.pdf
+  artifacts:
+    paths:
+      - public
+  only:
+    - master # this job will affect only the 'master' branch