Guardian watches over your files and runs assigned tasks.

brew tap f/guardian
brew install guardian

Guardian is availabe as a package from the Arch User Repository called guardian-git

git clone https://github.com/f/guardian.git && cd guardian
crystal build src/guardian.cr --release

Guardian works seamless with Crystal Projects. It automatically binds itself to library you use.

$ crystal init lib yourlib
$ cd yourlib
$ guardian --init
Created guardian.yml of ./src/yourlib.cr

You can use Guardian for other projects.

$ guardian --init
Created guardian.yml

$ guardian --init

It will create a guardian.yml file to use by Guardian.

guardian.yml is a simple YAML file.

Simply it has YAML documents with seperated by --- line and each document has files and run keys.

files key needs a glob pattern, and run is a shell command what to run.

files: ./**/*.cr
run: crystal build ./src/guardian.cr
---
files: ./shard.yml
run: shards install

Guardian replaces %file% variable in commands with the changed file.

files: ./**/*.txt
run: echo "%file% is changed"

Think you have a hello.txt in your directory, and Guardian will run echo "hello.txt is changed" command when it's changed.

$ guardian
💂 Guardian is on duty!

1. Fork it ( https://github.com/f/guardian/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

• f Fatih Kadir Akın - creator, maintainer