Basic working git-to-rss + sinatra for ruby

bin/gitfeed

@@ -0,0 +1,34 @@
+#!/usr/bin/env ruby
+
+require 'rubygems'
+require 'gitfeed'
+
+unless ARGV.size >= 1
+  warn <<END
+Usage: gitfeed [options] /path/to/git/repository
+
+Options:
+    --title="RSS Feed Title"
+    --url=http://base.url.com/
+    --description="RSS Feed Descrption"
+    --template=/path/to/haml/template/for/entries
+    --include-diffs=false
+END
+  exit! 1
+end
+
+options = {}
+
+until ARGV.size <= 1 do
+  kv = ARGV.shift.split('=')
+  key = kv.first.sub(/^--/, '').gsub('-', '_').to_sym
+  value = kv.last
+  value = false if value == 'false'
+  value = true if value == 'true'
+  options[key] = value
+end  
+
+repository = ARGV.shift
+
+Gitfeed::Server.start(repository, options)
+

lib/entry.haml

@@ -0,0 +1,19 @@
+%p
+  %strong Author:
+  = entry.author.name
+  <
+  %a{ :href => "mailto:#{entry.author.email}" }
+    = entry.author.email
+  >
+%p
+  %strong Date:
+  = entry.author.date
+%p
+  %strong Message:
+  = entry.message
+%p
+  %strong SHA:
+  = entry.objectish
+- if @include_diffs && !entry.parents.empty?
+  %pre
+    = @git.diff(entry.parents.first.objectish, entry.objectish)

lib/gitfeed.rb

@@ -0,0 +1,52 @@
+require 'rubygems'
+require 'git'
+require 'haml'
+require 'rss/maker'
+require 'sinatra'
+
+class Gitfeed
+  RSS_VERSION = '2.0'
+
+  def initialize(repository_path, options = {})
+    @git = Git.open(repository_path)
+    @title = options[:title] || "Gitfeed for #{repository_path.sub(/.*\//, '')}"
+    @url = options[:url] || 'http://github.com/scotchi/gitfeed'
+    @description = options[:description] || repository_path
+    @template = options[:template] || File.expand_path('../entry.haml',  __FILE__)
+    @include_diffs = options[:include_diffs].nil? ? true : options[:include_diffs]
+    @haml = Haml::Engine.new(File.read(@template))
+  end
+
+  def feed
+    RSS::Maker.make(RSS_VERSION) do |maker|
+      maker.channel.title = @title
+      maker.channel.link = @url
+      maker.channel.description = @description
+      maker.items.do_sort = true
+      @git.log(20).each do |entry|
+        item = maker.items.new_item
+        item.title = entry.message.sub(/\n.*/m, '')
+        item.link = @url
+        item.date = entry.date
+        item.description = description(entry)
+      end
+    end
+  end
+
+  class Server < Sinatra::Base
+    def self.start(*args)
+      @@gitfeed = Gitfeed.new(*args)
+      get '/' do
+        content_type('text/xml')
+        @@gitfeed.feed.to_s
+      end
+      self.run!
+    end
+  end
+
+  private
+
+  def description(entry)
+    @haml.render(self, :entry => entry)
+  end
+end