Watch some files, do a thing

A simple wrapper for Shama's gaze module that performs an arbitrary command when files change. Like watchify, but for everything.

$ npm install -g gazer

$ gazer --pattern "readme.md" echo "blorp"

[readme.md changes]

> "blorp"

If you haven't read substack's post describing lightweight build steps with npm run, I'll give you a moment to get up to speed.

Here's how you might use gazer to run a build task every time a file changes:

{
  "scripts": {
    "build-less": "lessc public/less/main.less public/css/main.css",
    "watch-less": "gazer -p 'public/less/**/*.less' npm run build-less"
  }
}

And then start the watcher:

$ npm run watch-less