Bash

Recently (the past few years actually) we’ve been experiencing that Mercurial has problems scaling to it’s activity. Here are some statistics for example:

• 24550 Mercurial heads (this is reset every few months)
• Head count correlated with the degraded performance
• 4.3 GB in size, 203509 files without a working copy

One of the methods we’re attempting is to modify try so that each push is not a head, but is instead a bundle that can be applied cleanly to any [mozilla-central](https://hg.mozilla.org/mozilla-central" target="_blank) tree.

I started the journey long ago with >Ion3. My main problem with it was the terrible default configuration. Hundreds of lines of incomprehensible Lua means that it’s very difficult to write a proper laptop status bar. I slogged through, learned Lua, and eventually came up with something that was usable. Then I learned of the author’s bat-shit insane-ness. Not wanting to get sued, I switched away. I wanted something that was easy to understand and script with a “large” install base.