add Git hook for standard style check

README.md

运行方法:

./pre-commit.sh # 安装 pre-commit

git commit ... # 自动检查代码是否符合 standard js 标准

CHECK=0 git commit ... # 不检查代码

pre-commit.sh

if [ "`which standard`" = "" ]
then
    npm install standard -g
fi

if [ "`which snazzy`" = "" ]
then
    npm install snazzy -g
fi

echo '#!/bin/sh
# Ensure all javascript files staged for commit pass standard code style

if [ "$CHECK" = "0" ]
then
  echo "ignore pre commit check"
  exit
fi

git diff --name-only --cached --relative | grep "\.jsx\?$" | xargs standard --verbose | snazzy
if [ $? -ne 0 ]; then exit 1; fi
' > .git/hooks/pre-commit

chmod +x .git/hooks/pre-commit