# File lib/bleak_house/analyzer.rb, line 35
35:     def self.diff(outputs)
36:       # Calculate the diff
37:       diff = Hash.new(0)
38:       # Iterate each item
39:       outputs.each_with_index do |output, index|
40:         output[3..-1].each do |line|
41:           c, key = line.split(" ", 2)
42:           index.zero? ? diff[key] -= c.to_i : diff[key] += c.to_i
43:         end
44:       end
45:       # Format the lines in descending order
46:       diff.sort_by do |key, value|
47:         -value
48:       end.map do |key, value|
49:         "#{value.to_s.rjust(6)} #{key}"
50:       end    
51:     end

    # File lib/bleak_house/analyzer.rb, line 6
 6:     def self.run(*args)
 7:       lines = args.last[/^\d+$/] ? args.pop.to_i : 20
 8: 
 9:       raise "Can't diff more than 2 files" if args.size > 2
10:       
11:       outputs = args.map do |file|          
12:         filled, free = `tail -n 2 #{file}`.split("\n")
13:         unless filled =~ /filled/ and free =~ /free/
14:           raise "#{file} is incomplete or corrupted"
15:         end
16:   
17:         length = `wc #{file}`.to_i - 2      
18:         cmd = ENV['NO_TRACE'] ? "awk -F: '{print $3}' " + file : "cat #{file}"      
19:         cmd += " | sort | uniq -c | sort -nr | head -#{lines}"
20:   
21:         ["#{length} total objects", "#{filled} heap slots", "#{free} heap slots"] + `#{cmd}`.split("\n")
22:       end
23:     
24:       if outputs.size == 1
25:         # Just output the data
26:         puts "Displaying top #{lines} most common line/class pairs"        
27:         puts outputs.first
28:       else
29:         puts "Displaying change in top #{lines} most common line/class pairs"        
30:         puts diff(outputs)
31:       end
32: 
33:     end