Finding TODOs and Reporting in PowerShell

FindTODO.ps1

#full details now available: http://tiredblogger.wordpress.com/2011/12/28/finding-todos-and-reporting-in-powershell/

param(
	#this is appalling; there has to be a better way to get the raw name of "this" directory. 
	[string]$DirectoryMask = (get-location),
	[array]$Include = 
		@("*.spark","*.cs","*.js","*.coffee","*.rb"),
	[array]$Exclude = 
		@("fubu-content","packages","build","release"),
	[switch]$Html,
	[string]$FileName = "todoList.html")

$originalFiles = 
	gci -Recurse -Include $Include -Exclude $Exclude -Path $DirectoryMask;

$withoutExcludes = $originalFiles | ? {
	if ($Exclude.count -gt 0) {
		#need moar regex
		[regex] $ex = 
			# 1: case insensitive and start of string
			# 2: join our array, using RegEx to escape special characters
			# the * allow wildcards so directory names filter out
			# and not just exact paths.
			# 3: end of string
			#  1                   2										3
			'(?i)^(.*'+(($Exclude|%{[regex]::escape($_)}) -join ".*|.*")+'.*)$'
		$_ -notmatch $ex
	}
	else { 
		$_ 
	}
}

$todos = $withoutExcludes | 
	% { select-string $_ -pattern "TODO:" } |
	select-object LineNumber, FileName, Line;
	
$todoReplacer = '(#|//).TODO:.'

$formattedOutput = $todos | select-object `
	@{Name='LineNumber'; Expression={$_.LineNumber}}, `
	@{Name='FileName'; Expression={$_.FileName}}, `
	@{Name='TODO'; Expression={[regex]::replace($_.Line.Trim(),$todoReplacer,'')}}

if ($Html) {
	$head = @'
	<style> 
	body{	font-family:Segoe UI; background-color:white;} 
	table{	border-width: 1px;border-style: solid;
			border-color: black;border-collapse: collapse;width:100%;} 
	th{		font-family:Segoe Print;font-size:1.0em; border-width: 1px;
			padding: 2px;border-style: solid;border-color:black;
			background-color:lightblue;} 
	td{		border-width: 1px;padding: 2px;border-style: solid;
			border-color: black;background-color:white;} 
	</style> 
'@
	$solutionName = 
		(Get-Location).ToString().Split("\")[(Get-Location).ToString().Split("\").Count-1];

	$header = "<h1>"+$solutionName +" TODO List</h1><p>Generated on "+ [DateTime]::Now +".</p>"
	$title = $solutionName +" TODO List"
	$formattedOutput | 
		ConvertTo-HTML -head $head -body $header -title $title |
		Out-File $FileName
}
else {
	$formattedOutput
}

Using the ? (where) -notmatch because -Excludes is full of fail in PowerShell 2.0 still. =/

o_0 ... must learn moar powershell

Updated the TODO replacement finder to handle '# TODO: ' for ruby and coffeescript files.