recently modified rspec files

recent_specs.sh

#!/bin/bash

# Find modified specs between HEAD and some other point in the
# commit history. Defaults to comparing between master & HEAD.
#
# Supply an optional alternative point in history as the first & only
# argument:
# recent_specs.sh HEAD~8
#
#
# Easily run specs with xargs:
# recent_specs.sh | xargs spring rspec

if [ -z "$1" ]; then
    BRANCH='master'
else
    BRANCH=$1
fi

git diff --name-only $BRANCH HEAD | grep "^spec" | uniq | while read F; do
  if [ -f "$F" ]
  then
    echo $F
  fi
done