Per-project abbreviations using mise

[henrebotha]

mise is a fantastic tool that combines direnv-style path-based environments, asdf-style polyglot tool version management, and task running. It has an experimental hooks feature that lets you run code when certain events occur.

We can use mise to create abbreviations scoped to a particular directory. I'm using this to save me from myself: One of our big monorepos at work is really big, and even simple commands like git status take a long time to complete. So I'd really like my usual git s (which is a Git alias expanding to git status --short --branch) to expand to git s . while I'm in that monorepo. This way, at least some of the time, when I reflexively type git s<Enter>, it will scope the command to just the subdirectory I'm in.

We will scope these abbreviations to the session, so that they don't pollute other shells where we are not currently hanging out in the big repo.

Create (if you don't already have one) a mise.local.toml file in the root of your enormous monorepo, and add the following to it.

[hooks.enter]
shell = "zsh"
script = "abbr --quiet --session 'git s'='git s .'"

[hooks.leave]
shell = "zsh"
script = "abbr --quiet erase --session 'git s'"

Now trust it.

$ mise trust mise.local.toml

Finally, try it out. (You will have to leave and re-enter the directory to make it happen; I don't have a workaround for this.)

$ cd ~
$ abbr expand 'git s'
$ cd ~/big/repo
$ abbr expand 'git s'
git s .

[olets]

That's really cool!

[farzadmf]

@henrebotha Do you happen to know a way to force mise to "reload" the file?

Seems like when I change the config, I need to cd-out and cd back in to the directory for mise to pick up the changes

[henrebotha]

I don't, I feel like there should be one though…

[farzadmf]

I feel like there should be one though

My thought as well; didn't find anything with a quick internet search

Also, seems like this only takes affect on directory change: if I open a new shell in the directory, I need to cd the "cd maneuver" to load the abbr's