Continuously watches for .coffee file changes in a folder (and subfolders), and runs the CoffeeScript compiler against them

Continuous-CoffeeScript.ps1

# watch a file changes in the current directory, 
# compile when a .coffee file is changed or renamed
# Wrapped Graeme's version up into a function so it can be installed with install-module
# Also changed so it invoked coffee.exe directly, you need Coffee for Windows in your PATH for it to work
# https://github.com/alisey/CoffeeScript-Compiler-for-Windows

function watch
{
	$watcher = New-Object System.IO.FileSystemWatcher
	$watcher.Path = get-location
	$watcher.IncludeSubdirectories = $true
	$watcher.EnableRaisingEvents = $false
	$watcher.NotifyFilter = [System.IO.NotifyFilters]::LastWrite -bor [System.IO.NotifyFilters]::FileName

	while($TRUE){
		$result = $watcher.WaitForChanged([System.IO.WatcherChangeTypes]::Changed -bor [System.IO.WatcherChangeTypes]::Renamed -bOr [System.IO.WatcherChangeTypes]::Created, 1000);
		if($result.TimedOut){
			continue;
		}
		write-host "Modified" $result.Name
		$file = Get-Item $result.Name
		if($file.Extension -eq ".coffee"){
			write-host "Compiling" $result.Name
			coffee.exe -c $file.FullName
		}
	}
}