flada-auxv · September 15, 2012 19:14 · Jun 28, 2012 · Jun 28, 2012 · Jun 28, 2012 · Jun 28, 2012
diff --git a/enumetric.rb b/enumetric.rb
@@ -36,7 +36,7 @@ def tally_enumetric(dir = '.')
   puts "Least Used: #{least_common[0]} / #{least_common[1]} times"
   puts "Used once: #{enumerable_usage.select{|k,v| v == 1}.map{|k,v| k}}"
   puts "Never used: #{enumerable_usage.select{|k,v| v.zero?}.map{|k,v| k}}"
-  puts "All usage: #{enumerable_usage.sort_by {|k,v| v}.map{|k,v| "#{k}: #{v}"}}"
+  puts "All usage: #{enumerable_usage.reject{|k,v| v.zero?}.sort_by {|k,v| v}.map{|k,v| "#{k}: #{v}"}}"
 end
 
 if __FILE__ == $0

diff --git a/enumetric.rb b/enumetric.rb
@@ -9,7 +9,7 @@
 def count_usage(method, dir = '.')
   method_delimiter = '[\s\.\{\(=]'
   method = method.to_s.sub('?','\?')
-  cmd = "ack --no-group --ruby \"#{method}#{method_delimiter}\" #{dir}"
+  cmd = "ack --no-group --ruby \"\\.#{method}#{method_delimiter}\" #{dir}"
   IO.popen(cmd).count
 end
 

diff --git a/enumetric.rb b/enumetric.rb
@@ -3,6 +3,9 @@
 # enumetric.rb
 # 
 # Rough estimate of usage/non-usage of Enumerable methods
+
+TRIVIAL_METHODS  = [:first, :count, :to_a]
+
 def count_usage(method, dir = '.')
   method_delimiter = '[\s\.\{\(=]'
   method = method.to_s.sub('?','\?')
@@ -22,10 +25,13 @@ def tally_enumetric(dir = '.')
   enumerable_count = enumerable_usage.values.reduce(&:+)
   most_common = enumerable_usage.max_by {|k,v| v}
   least_common = enumerable_usage.reject{|k,v| v.zero?}.min_by {|k,v| v}
+  non_trivial = enumerable_usage.reject {|k,v| TRIVIAL_METHODS.member? k }
   ratio = 100.0 * each_count / (each_count + enumerable_count)
+  non_trivial_ratio = 100.0  * each_count / (each_count + non_trivial.values.reduce(&:+))
   puts "#each count: #{each_count}"
   puts "Enumerable method usage: #{enumerable_count}"
   puts "Each ratio (lower is better): #{ratio.round(2)}%"
+  puts "Non-trivial each ratio: #{non_trivial_ratio.round(2)}%"
   puts "Most Used: #{most_common[0]} / #{most_common[1]} times"
   puts "Least Used: #{least_common[0]} / #{least_common[1]} times"
   puts "Used once: #{enumerable_usage.select{|k,v| v == 1}.map{|k,v| k}}"

diff --git a/enumetric.rb b/enumetric.rb
@@ -0,0 +1,42 @@
+#! /usr/bin/env ruby
+#
+# enumetric.rb
+# 
+# Rough estimate of usage/non-usage of Enumerable methods
+def count_usage(method, dir = '.')
+  method_delimiter = '[\s\.\{\(=]'
+  method = method.to_s.sub('?','\?')
+  cmd = "ack --no-group --ruby \"#{method}#{method_delimiter}\" #{dir}"
+  IO.popen(cmd).count
+end
+
+def measure_enumerable_usage(dir = '.')
+  Enumerable.instance_methods.each_with_object({}) { |m, set|
+    set[m] = count_usage(m, dir)
+  }
+end
+
+def tally_enumetric(dir = '.')
+  each_count = count_usage('each', dir)
+  enumerable_usage = measure_enumerable_usage(dir)
+  enumerable_count = enumerable_usage.values.reduce(&:+)
+  most_common = enumerable_usage.max_by {|k,v| v}
+  least_common = enumerable_usage.reject{|k,v| v.zero?}.min_by {|k,v| v}
+  ratio = 100.0 * each_count / (each_count + enumerable_count)
+  puts "#each count: #{each_count}"
+  puts "Enumerable method usage: #{enumerable_count}"
+  puts "Each ratio (lower is better): #{ratio.round(2)}%"
+  puts "Most Used: #{most_common[0]} / #{most_common[1]} times"
+  puts "Least Used: #{least_common[0]} / #{least_common[1]} times"
+  puts "Used once: #{enumerable_usage.select{|k,v| v == 1}.map{|k,v| k}}"
+  puts "Never used: #{enumerable_usage.select{|k,v| v.zero?}.map{|k,v| k}}"
+  puts "All usage: #{enumerable_usage.sort_by {|k,v| v}.map{|k,v| "#{k}: #{v}"}}"
+end
+
+if __FILE__ == $0
+  if dir = ARGV[0]
+    tally_enumetric(dir)
+  else
+    tally_enumetric
+  end
+end
No results found