From 91d199259bc7a85763d487a1d0fbf8cd50fe29a0 Mon Sep 17 00:00:00 2001
From: Benjamin Fleischer <github@benjaminfleischer.com>
Date: Thu, 27 Jun 2013 23:18:30 -0500
Subject: Encapsulate rake lines from ActiveRecord/ActionPack as
 CodeTools::LineStatistics

[ci skip]
---
 tools/line_statistics | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100755 tools/line_statistics

(limited to 'tools')

diff --git a/tools/line_statistics b/tools/line_statistics
new file mode 100755
index 0000000000..5eb5cfdc3d
--- /dev/null
+++ b/tools/line_statistics
@@ -0,0 +1,41 @@
+#!/usr/bin/env ruby
+# Example:
+#   files = FileList["lib/active_record/**/*.rb"]
+#   CodeTools::LineStatistics.new(files).print_loc
+module CodeTools
+  class LineStatistics
+
+    # @param files [Array, FileList, Enumerable]
+    # e.g. FileList["lib/active_record/**/*.rb"]
+    def initialize(files)
+      @files = Array(files).compact
+    end
+
+    # Calculates LOC for each file
+    # Outputs each file and a total LOC
+    def print_loc
+      lines, codelines, total_lines, total_codelines = 0, 0, 0, 0
+
+      @files.each do |file_name|
+        next if file_name =~ /vendor/
+        File.open(file_name, 'r') do |f|
+          while line = f.gets
+            lines += 1
+            next if line =~ /^\s*$/
+            next if line =~ /^\s*#/
+            codelines += 1
+          end
+        end
+        puts "L: #{sprintf("%4d", lines)}, LOC #{sprintf("%4d", codelines)} | #{file_name}"
+
+        total_lines     += lines
+        total_codelines += codelines
+
+        lines, codelines = 0, 0
+      end
+
+      puts "Total: Lines #{total_lines}, LOC #{total_codelines}"
+    end
+
+  end
+end
-- 
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