Your GitHub language bar is lying (how to fix it)

tl;dr; GitHub’s language bar counts every byte in your repo, including generated docs and test suites. A few lines in .gitattributes tell it what to skip. For my project, that took it from “75% HTML” to roughly 62% Rust and 38% Python, which is what the project really is. You know that colorful bar on every GitHub repo’s page, the one that says what the project is written in? I just learned you can tell it what to count. On one of my projects, it made a big difference. Why does GitHub think my ...