hacky script to make a pretty printer for sbt test

sbtpretty.rb

#!/usr/bin/env ruby

require 'colorize'
# pre-requisites
# gem install colorize
# if you are running in mac:
# brew install gnu-sed

# usage
# sbt test 2> /dev/null  | gsed -r "s/[[:cntrl:]]\[[0-9]{1,3}m//g" | sbtpretty


:info
:error
:debug
:none
:testfailed
:alltestspass
:summaryline
# ▸ Run completed in 3 seconds, 774 milliseconds
:runcompleted
# ▸ Total number of tests run: 59
:totalNumberOfTestsRun
# ▸ Suites: completed 9, aborted 0
:suites
#▸ Tests: succeeded 58, failed 1, canceled 0, ignored 0, pending 0
:summary2
#No tests were executed.
:no_tests_were_executed

def get_type(line)
  if no_tests_were_executed(line)
    return :no_tests_were_executed
  end
  if contains_summary_line_type_2(line)
    return :summary2
  end
  if contains_suites(line)
    return :suites
  end
  if contains_total_number_of_test_run(line)
    return :totalNumberOfTestsRun
  end
  if run_completed(line)
    return :runcompleted
  end
  if contains_summary(line)
    return :summaryline
  end

  if contains_date(line)
    return :none
  end

  if contains_failed_test(line)
    return :testfailed
  end

  if contains_all_tests_passed(line)
    return :alltestspass
  end

  if line.start_with?('[INFO]')
    return :info
  end

  if line.start_with?('[info]')
    return :info
  end

  if line.start_with?(' [error]') || line.start_with?('[error]')
    return :error
  end

  if line.start_with?('[ERROR]')
    return :error
  end


  # match_pos = (/\[[0-9]/ =~ line)
  # if match_pos != nil
  #   puts "is not nil"
  #   return :none
  # end


end
#  gsed -r "s/[[:cntrl:]]\[[0-9]{1,3}m//g"
def contains_date(line)
  # [12/18/2017 15:39:10.874]
  return /[0-9]*[\/,:][0-9]*[\/,:][0-9]*.*/.match(line)
end

def contains_failed_test(line)
  #*** FAILED ***
  return /\*\*\* .*FAILED.* \*\*\*/.match(line)
end

def contains_all_tests_passed(line)
  return /All tests passed/.match(line)
end

def contains_summary(line)
  #Passed: Total 5, Failed 0, Errors 0, Passed 5
  return /Passed: Total [0-9]*, Failed [0-9]*, Errors [0-9]*, Passed [0-9]*/.match(line)
end

def run_completed(line)
  ## ▸ Run completed in 3 seconds, 774 milliseconds
  return /.*Run completed in .*/.match(line)
end

def contains_total_number_of_test_run(line)
  ## ▸ Total number of tests run: 59
  return /.*Total number of tests run.*/.match(line)
end

def contains_suites(line)
  # ▸ Suites: completed 9, aborted 0
  #:suites
  return /.*Suites.* completed .* aborted .*/.match(line)
end

def contains_summary_line_type_2(line)
  #▸ Tests: succeeded 58, failed 1, canceled 0, ignored 0, pending 0
  return /.*Tests.* succeeded .* failed .*/.match(line)
end

def no_tests_were_executed(line)
  # No tests were executed.
  return /.*No tests were executed.*/.match(line)
end

WARNING = '⚠️ '
ERROR = '❌ '
CHECK = '✅'
SMALL_ARROW = "▸"
def strip_info(line)
  return line.gsub(/\[info\] (- )?/,"")
end

def format(line,type)
  case type
  when :info then "#{SMALL_ARROW.yellow} #{strip_info(line)}"
  when :error then line.gsub('[error]',"#{ERROR}   ").red
  when :testfailed then line.gsub('[info] ',"#{ERROR}   ").red
  when :alltestspass then line.gsub('[info] ',"#{CHECK}   ").green
  when :runcompleted then "#{SMALL_ARROW.yellow} #{strip_info(line).blue}"
  when :summaryline then "\t#{strip_info(line).yellow}".underline
  when :totalNumberOfTestsRun then "#{SMALL_ARROW.yellow} #{strip_info(line).blue}"
  when :suites then "#{SMALL_ARROW.yellow} #{strip_info(line).blue}"
  when :summary2 then "#{SMALL_ARROW.yellow} #{strip_info(line).blue}"
  when :no_tests_were_executed then "#{SMALL_ARROW.yellow} #{strip_info(line)}".bold
  end
end

def output(line)
  STDOUT.print(format(line,get_type(line)))
  STDOUT.flush
end

STDIN.each_line do |line|
  output(line)
end