Install.ps1

<#

.Format 
    Windows PowerShell Language Specification Version 3.0 
    https://www.microsoft.com/en-us/download/details.aspx?id=36389

.SYNOPSIS
    Wrapper script for SCCM deployments.

.DESCRIPTION
    Install.ps1 is an customizable wrapper that allows the combination of multiple installation methods within one script.  It contains functions for common deployment tasks, logging, and error checking.

.NOTES
    File Name      : Install
    Author         : Austin Yockel 
    Prerequisite   : PowerShell (PoSh) V2 over Windows 10 RTM (a.k.a. 1507) or Windows Server 2016 or newer.
    Version        : 1.6

.LINK
    Script posted over:
.EXAMPLE
    Example 1
.EXAMPLE
    Example 2
#>

#GLOBAL VARIABLES
##########################################################################

#Enter values
$logpath = "LOGPATH"            #Logpath
$LOGNAME = "InstallWrapper"                    #Logname                                                                                       
$ErrorActionPreference = "Stop"      #Default terminating error action

#Static values (do not touch)
$logfile = $logpath + "\$LOGNAME.log"
$shell = New-Object -ComObject Wscript.Shell
$PSScriptRoot = Split-Path -Parent -Path $MyInvocation.MyCommand.Definition
###########################################################################

#FUNCTIONS
###########################################################################

#Get-Timestamp
## Gets current timestamp in readable format
## e.g. Get-Timestamp()
function Get-TimeStamp {   
    return "[{0:MM/dd/yy} {0:HH:mm:ss}] " -f (Get-Date) 
}

#WriteLog
## Writes to a custom log file
## e.g. WriteLog("Your text here...")
function WriteLog($logtext) {
    $timestamp = Get-TimeStamp
    if(Test-Path $logfile){
        $text = $timestamp + "" + $logtext
        $text | out-file $logfile -Append
        echo $text
    }
    else {
        $text = $timestamp + $logtext
        $text | out-file $logfile
        echo $text
    }
}

#Block-UserInput
## Disables mouse and keyboard input until killed by Unblock-UserInput.  Requires BlockInput.exe in same directory.
## e.g. Block-UserInput()
function Block-UserInput() {
    Start-Process $PSScriptRoot\BlockInput.exe -ErrorAction SilentlyContinue
}

#Unblock-UserInput
## Kills BlockInput.exe
## e.g. Unblock-UserInput()
function Unblock-UserInput() {
    Stop-Process -Name "blockinput" -ErrorAction SilentlyContinue
}

#FileVersionDetectionCheck
## Compares FileVersion property of a file to specified version (format 1.1.1.1) and returns False if file version is lower than specified version.
## e.g. FileVersionDetectionCheck "c:\program files\internet explorer\iexplore.exe" "11.9.999.0"
function FileVersionDetectionCheck() {
    param([string]$file,[string]$version)
    $fileversion = (get-item $file -ErrorAction SilentlyContinue).VersionInfo.ProductVersion
    $fileversionobject = [System.Version]$fileversion
    $targetversion = [System.Version]$version
    if($fileversionobject -ge $targetversion) {
        return $true
    }
    else {
        return $false
    }
}

#UninstallGUIDDetectionCheck
## Searches the registry for uninstall key under HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall (and 64bit location). Returns true if found.
## e.g. UninstallGUIDDetectionCheck -GUID "FB54F620-9555-3A11-26CB-B027C4DDF260"
function UninstallGUIDDetectionCheck {
param($GUID)
$results = @()
    $key1 = Get-ChildItem HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall -ErrorAction SilentlyContinue | where {$_.Name -match $guid}
    $key2 = Get-ChildItem HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall -ErrorAction SilentlyContinue | where {$_.Name -match $guid}
    if($key1 -or $key2) {
        return $true
    }
    else {
        return $false
    }
}

#RegVersionDetectionCheck
## Compares DisplayVersion property of a registry uninstall key to specified version and returns False if registry version is lower than specified version.
## e.g. RegVersionDetectionCheck -GUID "05935793-A34C-4272-3361-7AF9AEEE5649" -DISPLAYVERSION "10.1.14393.0"
function RegVersionDetectionCheck {
    param([string]$GUID,[string]$DISPLAYVERSION)
    $key1 = Get-ItemProperty "HKLM:\software\wow6432node\microsoft\windows\currentversion\Uninstall\{$guid}" -ErrorAction SilentlyContinue
    $key2 = Get-ItemProperty "HKLM:\software\microsoft\windows\currentversion\Uninstall\{$guid}" -ErrorAction SilentlyContinue
    $key3 = Get-ItemProperty "HKLM:\software\microsoft\windows\currentversion\Uninstall\{$guid} - 1033" -ErrorAction SilentlyContinue
    if(($key1.DisplayVersion -ge $DISPLAYVERSION) -or ($key2.DisplayVersion -ge $DISPLAYVERSION) -or ($key3.DisplayVersion -ge $DISPLAYVERSION)) {
        return $true
    }
    else {
        return $false
    }
}

#GetCurrentUser
## Gets the current logged on username, even if the script is running as another account.
## e.g. GetCurrentUser
function GetCurrentUser {
$user = Get-WmiObject Win32_Process -Filter "Name='explorer.exe'" |
	  ForEach-Object { $_.GetOwner() } |
	  Select-Object -Unique -Expand User
return $user
}
###########################################################################







#START

#Set up log folder
###########################################################################
try {
    if(!(Test-Path $logpath)){
        New-Item -ItemType Directory -Force -Path $logpath
    }
}
catch {
    WriteLog($_.Exception.Message)
}

#USER NOTIFICATION
###########################################################################
#try {
#    $shell.Popup("ITGDS will now perform an important system update.  If Outlook is open, please close it now or it will close automatically in 2 minutes.  Your keyboard and mouse will be disabled during this process which will take approximately 5 minutes.  Click OK to update now, otherwise it will start automatically in 2 minutes.", 120, "ITGDS System Update", 0x0 + 0x20)
#}
#catch {
#    WriteLog($_.Exception.Message)
#    Exit
#}
#try {
#    Block-UserInput
#}
#catch {
#    WriteLog($_.Exception.Message)
#    Exit
#}
###########################################################################

#TASK 1
###########################################################################

###########################################################################

#TASK 2
###########################################################################

###########################################################################

#TASK 3
###########################################################################

###########################################################################

#SOFTWARE 1
###########################################################################
#$detectioncheckFile = "C:\Program Files\Internet Explorer\iexplore.exe"
#$detectioncheckVersion = "15.0.0.0"
#if(FileVersionDetectionCheck "$detectioncheckFile" "$detectioncheckVersion" -eq $true) {
#    WriteLog("Detection check.....Latest version detected....Continuing")
#}
#else {
#    WriteLog("Detection check....Latest version not detected....Installing")
#    try {
#        $installresult = (Start-Process -filepath "$PSScriptRoot\file.exe" -Wait -PassThru).ExitCode
#        WriteLog("Installation finished with return code: $installresult")
#    }
#    catch {
#        WriteLog($_.Exception.Message)
#    }
#}
###########################################################################

#SOFTWARE 2
###########################################################################
#if(UninstallGUIDDetectionCheck -GUID "535cde5a-39d6-46ee-b6e5-9f38d0664d97" -eq $true) {
#    WriteLog("Detection check.....Latest version detected....Continuing")
#}
#else {
#    WriteLog("Detection check....Latest version not detected....Installing")
#    try {
#        $installresult = (Start-Process -filepath "$PSScriptRoot\file.exe" -ArgumentList "/s" -Wait -PassThru).ExitCode
#        WriteLog("Installation finished with return code: $installresult")
#    }
#    catch {
#        WriteLog($_.Exception.Message)
#    }
#}
###########################################################################

#SOFTWARE 3
###########################################################################
#try {
#    WriteLog("Installing...")
#    $installresult = (Start-Process msiexec.exe -ArgumentList "/i $PSScriptRoot\file.msi /qn /norestart" -Wait -PassThru).ExitCode
#    WriteLog("Installation finished with return code: $installresult")
#}
#catch {
#    WriteLog($_.Exception.Message)
#}
###########################################################################

#CLEANUP
###########################################################################
#Unblock-UserInput
###########################################################################

#RETURN EXIT CODE
###########################################################################
WriteLog("Exiting with return code: $installresult")
[System.Environment]::Exit($installresult)
###########################################################################