Travis CI でビルドが成功した場合だけ Netlify にデプロイ ref: http://qiita.com/gatespace/items/146b75de89df6abc5ddb

.gitignode

id_rsa
id_rsa.pub

.gitignore

id_rsa
id_rsa.pub

.travis.yml

language: ruby
rvm:
- 2.3.3

before_install:
  - 'if [ "$TRAVIS_BRANCH" == master ] && [ "$TRAVIS_PULL_REQUEST" == "false" ]; then bash ./script/before_install.sh; fi'

before_script:
 - chmod +x ./script/cibuild # or do this locally and commit

script: ./script/cibuild

# blocklist
branches:
  except:
    - release

after_success:
  - '[ "$TRAVIS_BRANCH" == master ] && [ "$TRAVIS_PULL_REQUEST" == "false" ] && bash ./script/deploy.sh'

env:
  global:
    - NOKOGIRI_USE_SYSTEM_LIBRARIES=true # speeds up installation of html-proofer

sudo: false # route your build to the container-based infrastructure for a faster build

before_install.sh

#!/bin/bash

openssl aes-256-cbc -K $encrypted_xxxx_key -iv $encrypted_xxxx_iv -in travis_key.enc -out id_rsa -d
cp id_rsa ~/.ssh/id_rsa
chmod 600 ~/.ssh/id_rsa
echo -e "Host github.com\n\tStrictHostKeyChecking no\nHost github github.com\n\tHostName github.com\n\tIdentityFile ~/.ssh/id_rsa\n\tUser git\n" >> ~/.ssh/config
git config --global user.email "[email protected]"
git config --global user.name "example user"

deploy.sh

#!/bin/bash

git config --replace-all remote.origin.fetch +refs/heads/*:refs/remotes/origin/*
git config core.filemode false
git fetch
git checkout -b release origin/release
git merge origin/master
git push [email protected]:example/example.git release