Problems with Travis CI environment的解决方法

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使用travis ci进行coveralls同步时，会出现如下错误：
Collect git info
Read environment variables
Requirements are not satisfied.
- TRAVIS='true'
- TRAVIS_JOB_ID='18683918'
- CI_NAME='travis-ci'
- COVERALLS_REPO_TOKEN='[security]'
Set environment variables properly like the following.
For Travis users:
- TRAVIS
- TRAVIS_JOB_ID
For CircleCI users:
- CIRCLECI
- CIRCLE_BUILD_NUM
- COVERALLS_REPO_TOKEN
For Jenkins users:
- JENKINS_URL
- BUILD_NUMBER
- COVERALLS_REPO_TOKEN
From local environment:
- COVERALLS_RUN_LOCALLY
- COVERALLS_REPO_TOKEN
解决方法：
在脚本中添加如下几行命令即可：
after_success:
- export CI_BUILD_NUMBER="$TRAVIS_BUILD_NUMBER"
- export CI_PULL_REQUEST="$TRAVIS_PULL_REQUEST"
- export CI_BRANCH="$TRAVIS_BRANCH"
- travis_retry php vendor/bin/php-coveralls -v

Redis集群快速搭建脚本

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搭建一套redis集群用于测试，搭建过程如下

安装redis的ruby插件，用于构建redis集群。

gem install redis

下载最新的redis安装包：
wget http://download.redis.io/releases/redis-4.0.9.tar.gz
编译安装(本次安装目录在/opt/redis目录下)：
tar xzf redis-4.0.9.tar.gz
cd redis-4.0.9
make
make PREFIX=/opt/redis install
将构建集群的脚本拷贝至安装目录
cp src/redis-trib.rb /opt/redis/bin/
制作集群配置文件(至少6个节点)：
mkdir -p /opt/redis/cluster/{10001,10002,10003,10004,10005,10006}
echo "port {port}" > ./redis-cluster.conf
echo "dir /opt/redis/cluster/{port}" >> ./redis-cluster.conf
echo "cluster-enabled yes" >> ./redis-cluster.conf
echo "daemonize yes" >> ./redis-cluster.conf
echo "bind 127.0.0.1" >> ./redis-cluster.conf
sed 's/{port}/10001/' ./redis-cluster.conf > /opt/redis/redis-cluster-10001.conf
sed 's/{port}/10002/' ./redis-cluster.conf > /opt/redis/redis-cluster-10002.conf
sed 's/{port}/10003/' ./redis-cluster.conf > /opt/redis/redis-cluster-10003.conf
sed 's/{port}/10004/' ./redis-cluster.conf > /opt/redis/redis-cluster-10004.conf
sed 's/{port}/10005/' ./redis-cluster.conf > /opt/redis/redis-cluster-10005.conf
sed 's/{port}/10006/' ./redis-cluster.conf > /opt/redis/redis-cluster-10006.conf
启动节点：
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10001.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10002.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10003.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10004.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10005.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10006.conf
关联成集群模式：
echo "yes" | /opt/redis/bin/redis-trib.rb create --replicas 1 127.0.0.1:10001 127.0.0.1:10002 127.0.0.1:10003 127.0.0.1:10004 127.0.0.1:10005 127.0.0.1:10006
集群重启脚本:
PIDS=`ps -ef | grep '/opt/redis/bin/redis-server' | grep '127.0.0.1:1000' | awk '{print $2}'`
for i in $PIDS; do
echo "kill pid $i"
kill $i
done
sleep 3
rm -rf /opt/redis/cluster
mkdir -p /opt/redis/cluster/{10001,10002,10003,10004,10005,10006}
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10001.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10002.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10003.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10004.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10005.conf
/opt/redis/bin/redis-server /opt/redis/redis-cluster-10006.conf
echo "yes" | /opt/redis/bin/redis-trib.rb create --replicas 1 127.0.0.1:10001 127.0.0.1:10002 127.0.0.1:10003 127.0.0.1:10004 127.0.0.1:10005 127.0.0.1:10006
PS: redis集群并没有考虑所有节点同时宕掉的情况，因此没有重启所有集群的命令，此重启脚本将所有数据情况，重建集群，请勿直接使用生产环境，仅限测试开发环境。

gem安装出现权限问题

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在安装fir-cli时出现了如下错误：


$ gem install fir-cli

Fetching: thor-0.20.0.gem (100%)

ERROR: While executing gem ... (Gem::FilePermissionError)

You don't have write permissions for the /Library/Ruby/Gems/2.3.0 directory.

解决办法：


sudo gem install -n /usr/local/bin fir-cli