GitHub – How to Add Status Indicators to a Section

I asked support@github.com; this is their reply:

We use Pygments (http://pygments.org/) to do syntax highlighting and determine which lexer to use based on each file's extension. So unfortunately, it doesn't look like there's a way to get C++ highlighting without renaming the files from *.c -> *.cpp and *.h -> *.hpp.

You can do this without losing git history of a file by using the git mv command.

There are several possibilities:

• You have not pushed your commits up to Github. Unlike centralized version control systems, committing it git is done locally. When you have made commit(s) locally and want to synchronize your Github project page, you need to run 'git push' to send the commits upstream.

• Your commits were not on the default branch (usually master) of a project. Other branches won't count towards the total until they are merged.

• Your repository is a fork. In this case only commits that have been contributed upstream and merged into the master branch are counted.

• Your commit was made with an email address other than ones you have told Github about.

• You haven't waited long enough. The graph is not updated instantly.

See Github's help section Why are my contributions not showing up on my profile? for more tips.