Igor Kromin |   Consultant. Coder. Blogger. Tinkerer. Gamer.

Gource is an awesome tool. It creates stunning, elastic visualisations of your RCS activity. I've written about it in the past when I first tried to use it on OSX with Subversion. Now that things have moved on and I am using Git I decided to give Gource another go.

What I wanted to do was build an animation of the Git commits we had for the last release of the project I'm working on. The Gource side is not too different after to how I described in my previous article, but the RCS (Git) log extraction does change. In the end I had this result (file names, users, anything identifying removed of course)...
gource3.png


So lets see how you get Gource going with Git...First extract the Git log between your two tags like so...
 Git Command:\
git log --pretty=format:user:%aN%n%at --reverse --raw --encoding=UTF-8 start_tag...end_tag > git.log


Replace start_tag and end_tag with your actual tag names. You can get a list of all tags by running 'git tag'.

Then to visualise the commits you can run Gource as follows:
 Gource Animation
gource --hide filenames,dirnames,usernames -c 4 -i 1200 --seconds-per-day 1 --camera-mode overview --bloom-multiplier 0.25 --bloom-intensity 0.25 -1280x720 --log-format git git.log




To create a video instead, you will need ffmpeg installed and the command now becomes this...
 Gource FFMPEG
gource --hide filenames,dirnames,usernames -c 4 -i 1200 --seconds-per-day 1 --camera-mode overview --bloom-multiplier 0.25 --bloom-intensity 0.25 -1280x720 --log-format git -o - git.log | ffmpeg -y -r 60 -f image2pipe -vcodec ppm -i - -vcodec libx264 -preset ultrafast -pix_fmt yuv420p -crf 1 -threads 0 -bf 0 gource.mp4


This is the video that I ended up with...



-i

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