Toggle a file from it's local changes being recognized by Git

toggle-assume-changeable.sh

git-assume-unchangeable () {
 git update-index --assume-unchanged "$@"
}

git-assume-changeable () {
 git update-index --no-assume-unchanged "$@"
}

git-show-unchangeable () {
  git ls-files -v | grep -e "^[hsmrck]"
}

To ignore local changes

git-assume-unchangeable db/schema.rb

To resume recognizing local changes

git-assume-changeable db/schema.rb

To list the files marked as unchangeable

git-show-unchangeable db/schema.rb