# This script recurses from the given directory to find all 
# .csproj files and upgrade them to VS 2013.

$search_path = "."
$client_profile = [bool] 0

if($args.Length -ge 1)
{
    if(($args[0] -eq "--help") -or
           ($args[0] -eq "-h") -or
           ($args[0] -eq "/?"))
    {
        echo "upgrade_dotnet"
        echo "usage: upgrade_dotnet (--client) (path)"
        $format = @(Expression={$_.Name}; Label="Argument"; width=10),
                  @(Expression={$_.Value}; Label="Description";)
        $arguments = @{"path"="The start of the search path for .csproj files to convert."}
        echo $arguments | Format-Table $format
    }
    else
    {
        $search_path = $args[0]
    }
    
    if($args.Length -ge 2)
    {
        $search_path = $args[1]
    }
}

$projects = ls -recurse -Filter "*.csproj" $search_path
foreach ($p in $projects)
{
	echo $p
    $path = $p.FullName
    $x = [XML](gc $path)
    
	$x.Project.ToolsVersion = "12.0"
	
	$profile = $x.Project.PropertyGroup[0].SelectSingleNode('TargetFrameworkProfile')
	if(-not $profile)
	{
		# do nothing
	}
	else
	{
		$x.Project.PropertyGroup[0].TargetFrameworkProfile = ""
	}
    
	$x.Project.PropertyGroup[0].TargetFrameworkVersion = "v4.5.1"

    $x.Save($path)
	
	(Get-Content $path) | 
	Foreach-Object {$_ -replace "<TargetFrameworkProfile>Client</TargetFrameworkProfile>", "<TargetFrameworkProfile></TargetFrameworkProfile>"} |
	Set-Content $path
}