gistfile1.sh

# Collect _spec.rb and .feature files under spec/ that are relevant to current work, one per line. Good for pipes.
#
#   1. Modified, staged git files.
#   2. Modified, unstaged git files.
#   3. Changes in any commits since master.
#   4. New, untracked files.
#
#   $ specs | xargs rspec

cat <(git diff --name-only) <(git diff --staged --name-only) <(git diff master..@ --name-only) <(git ls-files --others --exclude-standard) | uniq | grep -e "^spec/" | grep -E "_spec\.rb$|\.feature$"