I just installed piwik and it seems that there are not any .gitignore file so a lot of files shows up as modified
I think you should add a few files to gitignore like
perhaps also the plugins folder?
Hi, how did you install piwik?
Have you installed it from this repository? Then there should be one. But I wouldn't recommend you to use it as you would need to also get the submodules and other components.