#/usr/bin/env bash
# MIT © Sindre Sorhus - sindresorhus.com
 
# git hook to run a command after `git pull` if a specified file was changed
# Run `chmod +x post-merge` to make it executable then put it into `.git/hooks/`.
 
changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"
 
check_run() {
    echo "$changed_files" | grep --quiet "$1" && eval "$2"
}
 
# Example usage
# In this example it's used to run `npm install` if package.json changed and `bower install` if `bower.json` changed.
check_run package.json "npm install"
# something u want to do here