atiw003/git-line-count.rb

## git-line-count.rb
# 1) Put this file in your working directory
# 2) run 'sudo gem install active_support grit'
# 3) run 'ruby git-line-count.rb'
# 4) run 'open loc.html'
# 5) yay

require 'rubygems'
require 'active_support'
require 'grit'
require 'open-uri'
require 'fileutils'

include Grit

repo = Repo.new(".")

MAX_COMMITS    = 1_000_000
OUTPUT_FILE    = "loc.html"
FILE_EXTENSION = /\.js$/
EXCLUDED_FILES = %w(files.js to.js exclude.js).map { |str| Regexp.escape(str) }.join('|')
EXCLUDED       = /#{EXCLUDED_FILES}/i
PER_DAY        = true # true = show 1-commit-per-day, false = show all commits
TITLE          = "'#{repo.head.name}' branch JavaScript LOC #{PER_DAY ? 'per day' : 'per commit'}"

commits_with_loc = []
total_count      = 0 # gets reset every commit
current_date     = nil # gets reset every commit

recursive_loc_count = lambda do |tree_or_blob|
  if tree_or_blob.is_a?(Grit::Tree)
    # A directory
    tree_or_blob.contents.each(&recursive_loc_count)
  elsif tree_or_blob.is_a?(Grit::Blob) \
        && tree_or_blob.name =~ FILE_EXTENSION \
        && tree_or_blob.name !~ EXCLUDED
    # A matched file
    total_count += tree_or_blob.data.select { |line| line !~ /^[\n\s\r]*$/ }.count
  else
    # A non-matched file.
  end
end

# puts repo.commits[0].methods.sort.join(', ')
repo.commits('master', MAX_COMMITS).each do |commit|
  total_count = 0
  this_date = commit.committed_date.to_date

  if !PER_DAY || (PER_DAY && this_date != current_date)
    # Record this commit as end-of-day commit
    current_date = this_date
    commit.tree.contents.each(&recursive_loc_count)
    commits_with_loc << {
      :date => commit.committed_date.to_datetime.strftime("%-m/%-d/%y"),
      :id   => commit.id,
      :loc  => total_count
    }
  else
    # The day this commits falls on has already been recorded
  end
end

mod = (commits_with_loc.size / 5).round
commits_with_loc.reverse!

html = %Q!
<\!doctype html>
<html>
<head>
  <title>LOC Visualization</title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <style type="text/css" media="screen">
    /* http://raphaeljs.com/demo.css */
    body {
        background: #000;
        color: #fff;
        font: 300 100.1% "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif;
    }
    #holder {
        height: 480px;
        left: 50%;
        margin: -240px 0 0 -320px;
        position: absolute;
        top: 50%;
        width: 800px;
    }
    #copy {
        bottom: 0;
        font: 300 .7em "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif;
        position: absolute;
        right: 1em;
        text-align: right;
    }
    #copy a {
        color: #fff;
    }
  </style>

  <script type="text/javascript" charset="utf-8">
    /* raphael.js */
    #{open('http://github.com/DmitryBaranovskiy/raphael/raw/master/raphael.js').read}

    /* raphael.path.methods.js */
    #{open('http://github.com/DmitryBaranovskiy/raphael/raw/master/plugins/raphael.path.methods.js').read}

    /* jquery.js */
    #{open('http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js').read}

    /* raphael.js */
    #{open('http://raphaeljs.com/analytics.js').read.gsub('"" : "s"', '"" : ""').gsub('height = 250', 'height = 400').gsub('Y * data[i]', 'Y * parseInt(data[i])').gsub('hit', 'LOC').gsub('dot.attr("r", 5);', 'dot.attr("r", 0);').gsub('r.circle(x, y, 5)', 'r.circle(x, y, 0)').gsub('{text: lbl + " September 2008"}', '{text: lbl}')}
  </script>
</head>
<body>
  <h1 style="text-align: center;">#{TITLE}</h1>
  <table id="data">
    <tfoot>
      <tr>!

commits_with_loc.each_with_index do |commit, index|
  html << %Q!
  <th>#{commit[:date] if index % mod == 0 || index == commits_with_loc.size - 1}</th>!
end

html << %Q!
      </tr>
    </tfoot>
    <tbody>
      <tr>
!

commits_with_loc.each_with_index do |commit, index|
  html << %Q!
  <td>#{commit[:loc]}</td>!
end

html << %Q!</tr>
    </tbody>
  </table>
  <div id="holder"></div>
  <p id="copy">Git LOC-per-commit visualization by @tiegz using <a href="http://grit.rubyforge.org/">grit.rb</a> & <a href="http://raphaeljs.com/">Raphaël</a>—JavaScript Vector Library</p>
</body>
</html>
!

FileUtils.rm_f(OUTPUT_FILE)
f = File.open(OUTPUT_FILE, 'w').write(html)
	# 1) Put this file in your working directory
	# 2) run 'sudo gem install active_support grit'
	# 3) run 'ruby git-line-count.rb'
	# 4) run 'open loc.html'
	# 5) yay

	require 'rubygems'
	require 'active_support'
	require 'grit'
	require 'open-uri'
	require 'fileutils'

	include Grit

	repo = Repo.new(".")

	MAX_COMMITS = 1_000_000
	OUTPUT_FILE = "loc.html"
	FILE_EXTENSION = /\.js$/
	EXCLUDED_FILES = %w(files.js to.js exclude.js).map { \|str\| Regexp.escape(str) }.join('\|')
	EXCLUDED = /#{EXCLUDED_FILES}/i
	PER_DAY = true # true = show 1-commit-per-day, false = show all commits
	TITLE = "'#{repo.head.name}' branch JavaScript LOC #{PER_DAY ? 'per day' : 'per commit'}"

	commits_with_loc = []
	total_count = 0 # gets reset every commit
	current_date = nil # gets reset every commit

	recursive_loc_count = lambda do \|tree_or_blob\|
	if tree_or_blob.is_a?(Grit::Tree)
	# A directory
	tree_or_blob.contents.each(&recursive_loc_count)
	elsif tree_or_blob.is_a?(Grit::Blob) \
	&& tree_or_blob.name =~ FILE_EXTENSION \
	&& tree_or_blob.name !~ EXCLUDED
	# A matched file
	total_count += tree_or_blob.data.select { \|line\| line !~ /^[\n\s\r]*$/ }.count
	else
	# A non-matched file.
	end
	end

	# puts repo.commits[0].methods.sort.join(', ')
	repo.commits('master', MAX_COMMITS).each do \|commit\|
	total_count = 0
	this_date = commit.committed_date.to_date

	if !PER_DAY \|\| (PER_DAY && this_date != current_date)
	# Record this commit as end-of-day commit
	current_date = this_date
	commit.tree.contents.each(&recursive_loc_count)
	commits_with_loc << {
	:date => commit.committed_date.to_datetime.strftime("%-m/%-d/%y"),
	:id => commit.id,
	:loc => total_count
	}
	else
	# The day this commits falls on has already been recorded
	end
	end

	mod = (commits_with_loc.size / 5).round
	commits_with_loc.reverse!

	html = %Q!
	<\!doctype html>
	<html>
	<head>
	<title>LOC Visualization</title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<style type="text/css" media="screen">
	/* http://raphaeljs.com/demo.css */
	body {
	background: #000;
	color: #fff;
	font: 300 100.1% "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif;
	}
	#holder {
	height: 480px;
	left: 50%;
	margin: -240px 0 0 -320px;
	position: absolute;
	top: 50%;
	width: 800px;
	}
	#copy {
	bottom: 0;
	font: 300 .7em "Helvetica Neue", Helvetica, "Arial Unicode MS", Arial, sans-serif;
	position: absolute;
	right: 1em;
	text-align: right;
	}
	#copy a {
	color: #fff;
	}
	</style>

	<script type="text/javascript" charset="utf-8">
	/* raphael.js */
	#{open('http://github.com/DmitryBaranovskiy/raphael/raw/master/raphael.js').read}

	/* raphael.path.methods.js */
	#{open('http://github.com/DmitryBaranovskiy/raphael/raw/master/plugins/raphael.path.methods.js').read}

	/* jquery.js */
	#{open('http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js').read}

	/* raphael.js */
	#{open('http://raphaeljs.com/analytics.js').read.gsub('"" : "s"', '"" : ""').gsub('height = 250', 'height = 400').gsub('Y * data[i]', 'Y * parseInt(data[i])').gsub('hit', 'LOC').gsub('dot.attr("r", 5);', 'dot.attr("r", 0);').gsub('r.circle(x, y, 5)', 'r.circle(x, y, 0)').gsub('{text: lbl + " September 2008"}', '{text: lbl}')}
	</script>
	</head>
	<body>
	<h1 style="text-align: center;">#{TITLE}</h1>
	<table id="data">
	<tfoot>
	<tr>!

	commits_with_loc.each_with_index do \|commit, index\|
	html << %Q!
	<th>#{commit[:date] if index % mod == 0 \|\| index == commits_with_loc.size - 1}</th>!
	end

	html << %Q!
	</tr>
	</tfoot>
	<tbody>
	<tr>
	!

	commits_with_loc.each_with_index do \|commit, index\|
	html << %Q!
	<td>#{commit[:loc]}</td>!
	end

	html << %Q!</tr>
	</tbody>
	</table>
	<div id="holder"></div>
	<p id="copy">Git LOC-per-commit visualization by @tiegz using <a href="http://grit.rubyforge.org/">grit.rb</a> & <a href="http://raphaeljs.com/">Raphaël</a>—JavaScript Vector Library</p>
	</body>
	</html>
	!

	FileUtils.rm_f(OUTPUT_FILE)
	f = File.open(OUTPUT_FILE, 'w').write(html)