post-merge

#/usr/bin/env bash

# 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/`.

project_root="$(git rev-parse --show-toplevel)"

changed_files="$(git diff-tree -r --name-only --no-commit-id ORIG_HEAD HEAD)"

go_run() {
  read file
  echo $project_root/"$(dirname "$file")"
  eval "$1"
}

check_run() {
  echo "$changed_files" | grep "$1" | go_run "$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"
check_run bower.json "bower install"
check_run migration/* "cd $project_root && ./node_modules/.bin/sequelize -m"