[jperkin]

Their language detection is indeed terrible. I have a repository (https://github.com/jperkin/pilights) which is entirely composed of shell scripts and a single markdown README. GitHub's analysis?

  Perl 83.5%	  Shell 16.5%

There is not a single .pl or .pm file, nor a single mention of 'perl' anywhere in the repository, and all scripts begin with #!/bin/sh.

A number of my other repositories have similar problems, but this one is by far the worst.

[LeonidasXIV]

Sorry, I see a huge blue bar saying 100% shell.

[theOnliest]

Earlier this morning when I looked it looked like OP said...it looks like something has changed in the three hours or so intervening.

[jperkin]

Huh, yes, they appear to have coincidentally fixed it since I wrote that comment. Maybe I need to start reporting all GitHub bugs as Hacker News comments...