ESLint 3.0 Git Pre Commit Hook

commit-msg

#!/bin/zsh 
source ~/.zshrc #in case your tools do not export path

files=$(git diff --cached --name-only | grep '\.jsx\?$')

# Prevent ESLint help message if no files matched
if [[ $files = "" ]] ; then
  exit 0
fi

failed=0
for file in ${files}; do
  git show :$file | eslint $file
  if [[ $? != 0 ]] ; then
    failed=1
  fi
done;

if [[ $failed != 0 ]] ; then
  echo "🚫🚫🚫 ESLint failed, git commit denied!"
  exit $failed
fi

1. rename your pre-commit hook

mv .git/hooks/pre-commit.sample .git/hooks/pre-commit

2. copy & paste above script to .git/hooks/pre-commit
3. if you use bash, modify shebang and source

#!/bin/bash 
source ~/.bash_profile

4. git automatically sets right permission for hooks if not give the hook execute

chmod a+x .git/hooks/pre-commit

5. done