---
title: lazybuilder v0.3
url: https://www.grahambrooks.com/post/2014-02-23-lazybuilder-v0-3/
date: 2014-02-23T00:00:00+00:00
author: Graham Brooks
tags:
- Testing
- developer-tools
- C++
- Continuous Delivery
---

# lazybuilder v0.3

The idea for
[lazybuilder](https://github.com/grahambrooks/lazybuilder) came up
during a recent coding dojo doing code kata. We were using Vim and a
separate terminal to run the tests. Switching back and forth between
two windows when trying to move quickly seemed like a waste of time.

There are several tools in this space but most of them work by polling
for changes or use linux events that are not available on a mac. lazy
builder uses <a>CoreServices</a>.

I found during testing with a rails app that some events are received
after the build has completed. To avoid looping I added a 100ms delay
after a build. This is a bit of a hack and I am working on trying to
recognize changes that are due to build activity as an alternative.

	lazybuilder

with no parameters watches the current directory and runs make.

	lazybuilder . rake

watches the current directory and runs rake

If you want to run more complex build commands enclose them in quotes:

	lazybuilder . "raake test"

### Roadmap

* Improve cool down period
* Avoid triggering build on temp file changes generated by emacs
* Consider committing changes to version control (particularly git) if the build command is successful

If you get to try out lazy builder I would really appreciate feedback, bug reports and pull requests.

### Installation


	brew update && \
	brew tap grahambrooks/lazybuilder && \
	brew install lazybuilder

### From Source
Installs to /usr/local/bin

	git clone git@github.com:grahambrooks/lazybuilder.git
	cd lazybuilder
	make install