Post-merge githook to update dependencies for a React Native project

post-merge

#!/bin/sh
# 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 "Checking for changes in $1"
	echo "$changed_files" | grep --quiet "$1" && echo "Running $2" && eval "$2"
}

check_run yarn.lock "yarn"
check_run Gemfile.lock "cd ios && bundle"
check_run Podfile.lock "cd ios && pod install"