post-checkout

#!/usr/bin/env bash
# fork from https://gist.github.com/jakemhiller/d342ad51505addf78ec628a16fd3280f

changed_files="$(git diff-tree -r --name-only --no-commit-id $1 $2)"

check_run() {
        echo "$changed_files" | grep --quiet "$1" && eval "$2"
}

U=${USER+", $USER"}

check_run package.json "echo Hi there${U}. Looks like package.json was updated. You might want to consider calling \'yarn\'"
exit 0