What is it?
Entree is something I brewed up in my spare time over the course of 2 evenings.
It utilises the entr watcher which if you haven’t heard of it, is a very
simple and lightweight way to watch for changes and do something on change.
Entree was partially inspired by funzzy. I saw that they were versioning their watchers and realised that’s something I wanted too, but I wanted it with
While I do have a slight love for Rust (what funzzy is written in), I didn’t want to use yet another reinvention of the wheel.
entr has been around for a while and is battle-tested. Besides that, my attempts with funzzy were not so funzzy.
How does it work?
It has a file named an
.entreerc which follows a very strict format of
find . | entr stuff
The watcher name on one line, and the command on the next line.
.entreerc looks like this, it’s very small because I don’t actually use many watchers…heh.
rg '' -l | entr npm run build && mort -f test/fixtures/no-usages.css
ls ~/programs/mort/test/fixtures/*.css | entr mort -vvf /_
The code for entree is written in bash which allows some pretty beautiful things to happen.
I get some nice tab-completion.
This was actually my first time making anything with tab-completion and it was much easier than I thought, I managed to get command completion and sub-command completion in,
a very easy installation process and of course,
the powers of the shell!
One of the nicer things about using the shell for this is I automatically get arguments injected into the command,
meaning that all of my watchers are now able to take command line arguments.
find . | entr $2
Running this with:
entree watch watcher-name ls
ls on every change of the current directory, pretty neat and very modular.
Why would I ever want this?
If you constantly spin up the same watchers, and want to share them across machines, then you probably
want a way of remembering your watchers, that’s what this is.