michaelfeathers

# Written by Michael Feathers July 10th, 2020

class Command
  def run line, session
    return unless matches? line
    process line, session
  end
end

class FixView < Command

michaelfeathers

package server;



import java.io.BufferedReader;
import java.io.FileReader;
import java.util.Date;
import java.util.Properties;
import java.util.Vector;

michaelfeathers

class Command
  def run line, session
    return unless matches? line
    process line, session
  end
end

class FixView < Command
  def matches? line

michaelfeathers

find . -name "*.rb" |xargs -n1 -I file sh -c 'echo `git log --oneline file | wc -l`: file'|sort -nr

michaelfeathers

require 'set'
require 'find'

class Array
  def to_h; Hash[self]; end
  def to_set; Set.new(self); end
  def freq; group_by {|e| e }.map {|k,v| [k,v.count] }.to_h; end
end

michaelfeathers

# http://c2.com/doc/SignatureSurvey/

require 'find'

def file_text file_name
  IO.read(file_name).scan(/[{};]/).join
rescue
  "error in file"  
end

michaelfeathers

-- code from https://www.infoq.com/presentations/Type-Functional-Design with bug related to 
-- assumption of trailing spaces after words

import Data.List;

lineBreak :: String -> String
lineBreak = joinedLines . wordJoinedLines . brokenLines . words

brokenLines :: [String] -> [[String]]

michaelfeathers

class Array
  def prefixes
    result = []
    (0..size).each {|n| result << take(n) }
    result
  end

  def indices value
    map {|v| v == value ? 0 : 1 }

michaelfeathers

def span_count ary
  ([0] + ary).lazy
                 .each_cons(2)
                 .count {|c,n| c == 0 && n != 0 }
end

michaelfeathers

# :: [event] -> String -> String
def method_delta_line es, method_name
  es.select {|e| e.method_name == method_name }
    .map(&:method_length)
    .each_cons(2)
    .map {|c,n| ["^","v","-"][(c <=> n) + 1] }
    .join
end