UpdateJom.ps1

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# File : UpdateJom.ps1
# Version : 1.0.1
# Purpose : Downloads and updates jom tool.
# Synopsis: http://qt-project.org/wiki/jom
# Usage : .\UpdateJom.ps1
# Author: Leonard Lee <sheeeng@gmail.com>
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# References:
# Manage BITS (Background Intelligent Transfer Service) with Windows PowerShell
# http://technet.microsoft.com/en-us/magazine/ff382721.aspx
# Using Windows PowerShell to Create BITS Transfer Jobs
# http://msdn.microsoft.com/en-us/library/windows/desktop/ee663885(v=vs.85).aspx
# Copying Folders by Using the Shell Folder Object
# http://technet.microsoft.com/en-us/library/ee176633.aspx
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Import-Module BitsTransfer

$DebugPreference = "SilentlyContinue" #Continue
Write-Debug $DebugPreference

#(Get-Location).tostring() or [string](Get-Location)
#Write-Host "`$HOME.GetType():" $HOME.GetType()
Set-Location $HOME
$currentDirectory = $HOME
$zipFile = "jom.zip"
$sourceZipFile = $currentDirectory + "\" + $zipFile
#Write-Host "`$sourceZipFile:" $sourceZipFile
#Write-Host "`$targetDirectory:" $targetDirectory
$targetDirectory = $HOME.ToString() + "\" + "jom"

if (Test-Path -path $targetDirectory) {
    Write-Host "The" $targetDirectory "directory exist."
}
else {
    Write-Host "Creating" $targetDirectory "directory since it does not exist."
    New-Item -ItemType directory -Path $targetDirectory
}

Start-BitsTransfer -Source "http://download.qt-project.org/official_releases/jom/jom.zip"

function Expand-ZIPFile($file, $destination)
{
    #Write-Host "`$file:" $file
    #Write-Host "`$destination:" $destination
    $shell = New-Object -ComObject Shell.Application
    $zip = $shell.NameSpace($file)
    foreach($item in $zip.items())
    {
        $shell.Namespace($destination).CopyHere($item, 0x14)
    }
}

$processName = "jom"
if (Get-Process $processName -ErrorAction SilentlyContinue) {
    #Write-Host "The" $processName "process exist. Trying to stop..."
    Stop-Process -processname $processName
}
else {
    #Write-Host "The" $processName "process does not exist."
}
Expand-ZIPFile –File $sourceZipFile $targetDirectory
Write-Host "Update completed."
#Invoke-Item $targetDirectory