add travis

.travis.yml

@@ -0,0 +1,31 @@
+language: node_js
+node_js: stable
+cache:
+  directories:
+    - "node_modules"
+before_install:
+- openssl aes-256-cbc -K $encrypted_4514352cb17e_key -iv $encrypted_4514352cb17e_iv
+  -in .travis/khs1994-robot.enc -out ~/.ssh/id_rsa -d
+- chmod 600 ~/.ssh/id_rsa
+- git config --global user.name "khs1994-merge-robot"
+- git config --global user.email "ai@khs1994.com"
+- echo "TZ='Asia/Shanghai'; export TZ" >> ~/.profile
+- . ~/.profile
+install:
+- git ls-files | while read file; do touch -d $(git log -1 --format="@%ct" "$file") "$file"; done
+- npm install gitbook -g
+- npm install -g gitbook-cli
+script:
+- gitbook install
+- gitbook build
+after_success:
+ - sh .travis/deploy.sh
+branches:
+  only:
+  - master
+env:
+  global:
+  - REPO: git@github.com:khs1994-gitbook/docker_practice.git
+addons:
+  ssh_known_hosts:
+  - github.com