ignore-pipe filters stdin to files that to do not match the patterns in
$HOME/.gitignore.
$ npm install -g ignore-pipe$ find .
./module.py
./module.pyc
./tests/__init__.py
./node_modules/one/index.js
./node_modules/one/package.json
$ cat $HOME/.gitignore
*.pyc
node_modules
$ find . | ignore-pipe
./module.py
./tests/__init__.py