How are recent languages stats calculated

[Nixinova]

Does the recent languages plugin measure:

1. how many recent commits feature that language,
2. the total number of bytes changed for each file type in recent commits, or
3. the total file size of all files recently touched?

[lowlighter]

1. number of commits/files/days used to compute these stats are now displayed since 4747332. It can be customized through plugin_languages_recent_load (only PushEvents will be kept from loaded events) and plugin_languages_recent_days options
2. total number of bytes changed is available when using bytes-size from plugin_languages_details option. these are obtained by filtering added lines for each diff patch and applying Buffer.byteLength on them (assuming encoding is utf-8)
3. total file size is available computed though it's not displayed (it's currently only used to compute percentages)

Seems that some languages are mistaken for others though. As you can see it deduced that I recently did a lot of HTML, but it was actually EJS. It's coherent with what I get when running it locally:

GitHub/metrics> github-linguist
62.22%  JavaScript
33.54%  HTML
4.03%   CSS
0.21%   Dockerfile

Edit: actually it seems to be misdetected only on WSL, the GitHub runner seems to correctly guess languages

[Nixinova]

So if I have say 95% JavaScript that means 95% of the bytes changed in the past 2 weeks by me were JS?

[lowlighter]

Yeah in theory that's what it should represent

I don't know how accurate it is since it's been introduced recently, but it seems ok
If you find any numbers that seems off, don't hesistate to report it 👍