solr-git 
About
Convert git commit history to solr index
See http://garysieling.com/blog/converting-git-commit-history-to-a-solr-full-text-index for more information
Talk: https://rawgithub.com/garysieling/git-solr-talk/master/index.html
Setup
Setup pre-requisites:
apt-get install openjdk-7-jdk git-core tomcat7 unzip
Solr setup:
cd ~
wget http://apache.mesi.com.ar/lucene/solr/4.5.1/solr-4.5.1.zip
unzip solr-4.5.1.zip
Get application source code:
git clone https://github.com/garysieling/solr-git.git
Copy schema.xml and authors.txt into the Solr distribution:
cp solr-git/schema.xml solr-4.5.1/example/solr/collection1/conf/
cp solr-git/authors.txt solr-4.5.1/example/solr/collection1/conf/
Start Solr:
cd /solr-4.5.1/example
java -jar start.jar
Modify the URL to point to your local Solr server, if needed (i.e. if you changed the default port or ran it on a different machine).
Edit the location of the local git files you want indexed.
This can be run from Eclipse, but you need to add jars from the Solr installation.