Installation Script For TessNet2

#This script downloads and installs TessNet2 (OCR), it must be run with admin privledges

#This script downloads and installs 7-zip(used to install TessNet2) and Tessnet2. 

#The 7-zip downloaded and installed is for 64 bit computers in C:\Program Files\7-Zip

#The Tessnet2 and TessNet2 English data are stored in $Home\Programming\TessNet2 directory.

$Date = [System.datetime]::now.ToString("yyyy-MM-dd")

$Junk = "$Home\Junk$Date"

if(!$(Test-Path $Junk)) { $void = New-Item -ItemType directory -Path $Junk }

#If 7-zip is not installed (it is needed to extract the data .gz file) 

if(!$(Test-Path "C:\Program Files\7-Zip")) {

    write-host "Downloading 7-Zip"

    $webclient = New-Object System.Net.WebClient

    $url = "http://downloads.sourceforge.net/sevenzip/7z920-x64.msi"

    $file = "$Junk\7z920-x64.msi"

    $webclient.DownloadFile($url,$file)

    write-host "Installing 7-Zip"

    Start-Process -file "$Junk\7z920-x64.msi" `

                  -arg ' /qn INSTALLDIR="C:\Program Files\7-Zip" ' `

                  -passthru | wait-process

}

#Create a programming folder in our Home directory.

$pgmDirectory = "$Home" + "\programming"

if(!$(Test-Path $pgmDirectory)) { $void = New-Item -ItemType directory -Path $pgmDirectory }

#Create a TessNet2 folder in our Programming directory.

$TNetDirectory = $pgmDirectory + "\TessNet2"

if(!$(Test-Path $TNetDirectory)) { $void=New-Item -ItemType directory -Path $TNetDirectory }

#If the TessNet language pack is not downloaded yet, download and extract it.

$TDataDirectory = $TNetDirectory + "\tessdata"

if(!$(Test-Path $TDataDirectory)) {

    write-host "Downloading TessNet2 Data"

    $webclient = New-Object System.Net.WebClient

    $url = "https://tesseract-ocr.googlecode.com/files/tesseract-2.00.eng.tar.gz"

    $file = "$Junk\tesseract-2.00.eng.tar.gz"

    $webclient.DownloadFile($url,$file)

    write-host "Installing TessNet2 Data"

    $void = & "C:\Program Files\7-Zip\7z.exe" "x" "$Junk\tesseract-2.00.eng.tar.gz" "-o$Junk"

    $void = & "C:\Program Files\7-Zip\7z.exe" "x" "$Junk\tesseract-2.00.eng.tar" "-o$TNetDirectory"

}

#If the TessNetAssemblies are not downloaded yet, download and extract them

$TAssDirectory = $TNetDirectory + "\TessNetAssemblies"

if(!$(Test-Path $TAssDirectory)) {

    write-host "Downloading TessNet2 Assemblies"

    $void=New-Item -ItemType directory -Path $TAssDirectory

    $webclient = New-Object System.Net.WebClient

    $url = "http://tmp.m4f.eu/tessnet2.zip"

    $file = "$Junk\tessnet2.zip"

    $webclient.DownloadFile($url,$file)

    write-host "Installing TessNet2 Assemblies"

    $void = & "C:\Program Files\7-Zip\7z.exe" "x" "$Junk\tessnet2.zip" "-o$TAssDirectory"

}

Remove-Item $Junk -Force -Recurse

<#
#Run this commented out section to uninstall TessNet2 (Ensure any applications (including PowerShell) that have used it are closed first).  
#This uninstalled assummes that you have it installed in the same directories this script installed it to. 
$unstlDirectory = "$Home" + "\programming" + "\TessNet2"
Remove-Item $unstlDirectory -Force -Recurse
#>