# The default colors of rack-lineprof can be very hard to look at in terminals
# with darker backgrounds. This patch tweaks the colors a bit so the output is
# actually readable.
if Rails.env.development? && RUBY_ENGINE == 'ruby' && ENV['ENABLE_LINEPROF']
Rails.application.config.middleware.use(Rack::Lineprof)
module Rack
class Lineprof
class Sample < Rack::Lineprof::Sample.superclass
def format(*)
formatted = if level == CONTEXT
sprintf " | % 3i %s", line, code
else
sprintf "% 8.1fms %5i | % 3i %s", ms, calls, line, code
end
case level
when CRITICAL
color.red formatted
when WARNING
color.yellow formatted
when NOMINAL
color.white formatted
else # CONTEXT
formatted
end
end
end
end
end
end