spm.rb

#!/usr/bin/env ruby

# Copy path from rspect stack trace and execute it
# spm ./spec/models/space_spec.rb:867

path = ARGV[0]

file, number, _ = path.split ':'
number = number.to_i
line = number > 0 ? " -l #{number}" : ""

exec "rspec -b -fn --color#{line} #{file}"