How to enable On Demand Installations on Windows using MS PowerShell, Chocolatey, Git and Nexus.

  1. Define your own chocolatey Templates or use existing one —
# IMPORTANT: Before releasing this package, copy/paste the next 2 lines into PowerShell to remove all comments from this file:#   $f='c:\path\to\thisFile.ps1'#   gc $f | ? {$_ -notmatch "^\s*#"} | % {$_ -replace '(^.*?)\s*?[^``]#.*','$1'} | Out-File $f+".~" -en utf8; mv -fo $f+".~" $f# 1. See the _TODO.md that is generated top level and read through that# 2. Follow the documentation below to learn how to create a package for the package type you are creating.# 3. In Chocolatey scripts, ALWAYS use absolute paths - $toolsDir gets you to the package's tools directory.$ErrorActionPreference = 'Stop'; # stop on all errors$toolsDir   = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"# Internal packages (organizations) or software that has redistribution rights (community repo)# - Use `Install-ChocolateyInstallPackage` instead of `Install-ChocolateyPackage`#   and put the binaries directly into the tools folder (we call it embedding)#$fileLocation = Join-Path $toolsDir 'NAME_OF_EMBEDDED_INSTALLER_FILE'# If embedding binaries increase total nupkg size to over 1GB, use share location or download from urls#$fileLocation = '\\SHARE_LOCATION\to\INSTALLER_FILE'# Community Repo: Use official urls for non-redist binaries or redist where total package size is over 200MB# Internal/Organization: Download from internal location (internet sources are unreliable)$url        = '' # download url, HTTPS preferred$url64      = '' # 64bit URL here (HTTPS preferred) or remove - if installer contains both (very rare), use $url$packageArgs = @{packageName   = $env:ChocolateyPackageNameunzipLocation = $toolsDirfileType      = 'EXE_MSI_OR_MSU' #only one of these: exe, msi, msuurl           = $urlurl64bit      = $url64#file         = $fileLocationsoftwareName  = 'myapptemplate.template*' #part or all of the Display Name as you see it in Programs and Features. It should be enough to be unique# Checksums are now required as of 0.10.0.# To determine checksums, you can get that from the original site if provided.# You can also use checksum.exe (choco install checksum) and use it# e.g. checksum -t sha256 -f path\to\filechecksum      = ''checksumType  = 'sha256' #default is md5, can also be sha1, sha256 or sha512checksum64    = ''checksumType64= 'sha256' #default is checksumType# MSIsilentArgs    = "/qn /norestart /l*v `"$($env:TEMP)\$($packageName).$($env:chocolateyPackageVersion).MsiInstall.log`"" # ALLUSERS=1 DISABLEDESKTOPSHORTCUT=1 ADDDESKTOPICON=0 ADDSTARTMENU=0validExitCodes= @(0, 3010, 1641)# OTHERS# Uncomment matching EXE type (sorted by most to least common)#silentArgs   = '/S'           # NSIS#silentArgs   = '/VERYSILENT /NORESTART /SP-' # Inno Setup#silentArgs   = '/s'           # InstallShield#silentArgs   = '/s /v"/qn"'   # InstallShield with MSI#silentArgs   = '/s'           # Wise InstallMaster#silentArgs   = '-s'           # Squirrel#silentArgs   = '-q'           # Install4j#silentArgs   = '-s'           # Ghost# Note that some installers, in addition to the silentArgs above, may also need assistance of AHK to achieve silence.#silentArgs   = ''             # none; make silent with input macro script like AutoHotKey (AHK)#       https://chocolatey.org/packages/autohotkey.portable#validExitCodes= @(0) #please insert other valid exit codes here}Install-ChocolateyPackage @packageArgs # https://chocolatey.org/docs/helpers-install-chocolatey-package#Install-ChocolateyZipPackage @packageArgs # https://chocolatey.org/docs/helpers-install-chocolatey-zip-package## If you are making your own internal packages (organizations), you can embed the installer or## put on internal file share and use the following instead (you'll need to add $file to the above)#Install-ChocolateyInstallPackage @packageArgs # https://chocolatey.org/docs/helpers-install-chocolatey-install-package## Main helper functions - these have error handling tucked into them already## see https://chocolatey.org/docs/helpers-reference## Install an application, will assert administrative rights## - https://chocolatey.org/docs/helpers-install-chocolatey-package## - https://chocolatey.org/docs/helpers-install-chocolatey-install-package## add additional optional arguments as necessary##Install-ChocolateyPackage $packageName $fileType $silentArgs $url [$url64 -validExitCodes $validExitCodes -checksum $checksum -checksumType $checksumType -checksum64 $checksum64 -checksumType64 $checksumType64]## Download and unpack a zip file - https://chocolatey.org/docs/helpers-install-chocolatey-zip-package##Install-ChocolateyZipPackage $packageName $url $toolsDir [$url64 -checksum $checksum -checksumType $checksumType -checksum64 $checksum64 -checksumType64 $checksumType64]## Install Visual Studio Package - https://chocolatey.org/docs/helpers-install-chocolatey-vsix-package#Install-ChocolateyVsixPackage $packageName $url [$vsVersion] [-checksum $checksum -checksumType $checksumType]#Install-ChocolateyVsixPackage @packageArgs## see the full list at https://chocolatey.org/docs/helpers-reference## downloader that the main helpers use to download items## if removing $url64, please remove from here## - https://chocolatey.org/docs/helpers-get-chocolatey-web-file#Get-ChocolateyWebFile $packageName 'DOWNLOAD_TO_FILE_FULL_PATH' $url $url64## Installer, will assert administrative rights - used by Install-ChocolateyPackage## use this for embedding installers in the package when not going to community feed or when you have distribution rights## - https://chocolatey.org/docs/helpers-install-chocolatey-install-package#Install-ChocolateyInstallPackage $packageName $fileType $silentArgs '_FULLFILEPATH_' -validExitCodes $validExitCodes## Unzips a file to the specified location - auto overwrites existing content## - https://chocolatey.org/docs/helpers-get-chocolatey-unzip#Get-ChocolateyUnzip "FULL_LOCATION_TO_ZIP.zip" $toolsDir## Runs processes asserting UAC, will assert administrative rights - used by Install-ChocolateyInstallPackage## - https://chocolatey.org/docs/helpers-start-chocolatey-process-as-admin#Start-ChocolateyProcessAsAdmin 'STATEMENTS_TO_RUN' 'Optional_Application_If_Not_PowerShell' -validExitCodes $validExitCodes## To avoid quoting issues, you can also assemble your -Statements in another variable and pass it in#$appPath = "$env:ProgramFiles\appname"##Will resolve to C:\Program Files\appname#$statementsToRun = "/C `"$appPath\bin\installservice.bat`""#Start-ChocolateyProcessAsAdmin $statementsToRun cmd -validExitCodes $validExitCodes## add specific folders to the path - any executables found in the chocolatey package## folder will already be on the path. This is used in addition to that or for cases## when a native installer doesn't add things to the path.## - https://chocolatey.org/docs/helpers-install-chocolatey-path#Install-ChocolateyPath 'LOCATION_TO_ADD_TO_PATH' 'User_OR_Machine' # Machine will assert administrative rights## Add specific files as shortcuts to the desktop## - https://chocolatey.org/docs/helpers-install-chocolatey-shortcut#$target = Join-Path $toolsDir "$($packageName).exe"# Install-ChocolateyShortcut -shortcutFilePath "<path>" -targetPath "<path>" [-workDirectory "C:\" -arguments "C:\test.txt" -iconLocation "C:\test.ico" -description "This is the description"]## Outputs the bitness of the OS (either "32" or "64")## - https://chocolatey.org/docs/helpers-get-o-s-architecture-width#$osBitness = Get-ProcessorBits## Set persistent Environment variables## - https://chocolatey.org/docs/helpers-install-chocolatey-environment-variable#Install-ChocolateyEnvironmentVariable -variableName "SOMEVAR" -variableValue "value" [-variableType = 'Machine' #Defaults to 'User']## Set up a file association## - https://chocolatey.org/docs/helpers-install-chocolatey-file-association#Install-ChocolateyFileAssociation## Adding a shim when not automatically found - Cocolatey automatically shims exe files found in package directory.## - https://chocolatey.org/docs/helpers-install-bin-file## - https://chocolatey.org/docs/create-packages#how-do-i-exclude-executables-from-getting-shims#Install-BinFile##PORTABLE EXAMPLE#$toolsDir = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"# despite the name "Install-ChocolateyZipPackage" this also works with 7z archives#Install-ChocolateyZipPackage $packageName $url $toolsDir $url64## END PORTABLE EXAMPLE## [DEPRECATING] PORTABLE EXAMPLE#$binRoot = Get-BinRoot#$installDir = Join-Path $binRoot "$packageName"#Write-Host "Adding `'$installDir`' to the path and the current shell path"#Install-ChocolateyPath "$installDir"#$env:Path = "$($env:Path);$installDir"# if removing $url64, please remove from here# despite the name "Install-ChocolateyZipPackage" this also works with 7z archives#Install-ChocolateyZipPackage "$packageName" "$url" "$installDir" "$url64"## END PORTABLE EXAMPLE
# Nexus Download Link: http://www.sonatype.org/downloads/nexus-latest-bundle.zipClear-Host# URL Parameter$WebURL = "http://www.sonatype.org/downloads/nexus-latest-bundle.zip"# Directory Parameter$FileDirectory = "$($env:USERPROFILE)$("\downloads\")"#Write-Output $FileDirectory# If directory doesn't exist create the directoryif((Test-Path $FileDirectory) -eq 0){mkdir $FileDirectory;}# We assume the file you download is named what you want it to be on your computer$FileName = [System.IO.Path]::GetFileName($WebURL)# Concatenate the two values to prepare the download$FullFilePath = "$($FileDirectory)$($FileName)"#Write-Output $FullFilePathfunction Get-FileDownload([String] $WebURL, [String] $FullFilePath){# Give a basic message to the user to let them know what we are doingWrite-Output "Downloading '$WebURL' to '$FullFilePath'"$uri = New-Object "System.Uri" "$WebURL"$request = [System.Net.HttpWebRequest]::Create($uri)$request.set_Timeout(30000) #15 second timeout$response = $request.GetResponse()$totalLength = [System.Math]::Floor($response.get_ContentLength()/1024)$responseStream = $response.GetResponseStream()$targetStream = New-Object -TypeName System.IO.FileStream -ArgumentList $FullFilePath, Create$buffer = new-object byte[] 10KB$count = $responseStream.Read($buffer,0,$buffer.length)$downloadedBytes = $countwhile ($count -gt 0){[System.Console]::Write("`r`nDownloaded {0}K of {1}K", [System.Math]::Floor($downloadedBytes/1024), $totalLength)$targetStream.Write($buffer, 0, $count)$count = $responseStream.Read($buffer,0,$buffer.length)$downloadedBytes = $downloadedBytes + $count}$targetStream.Flush()$targetStream.Close()$targetStream.Dispose()$responseStream.Dispose()# Give a basic message to the user to let them know we are doneWrite-Output "`r`nDownload complete"}function Expand-ZipFile([string]$File, [string]$Destination) #The targets to run.{# If directory doesn't exist create the directoryif((Test-Path $Destination) -eq 0){mkdir $Destination;}$Shell = new-object -com shell.application# Get the name of the Zip file$Zip = $Shell.NameSpace($File)#Expand/Extract each file from the zip fileforeach($Item in $Zip.items()){$Shell.Namespace($Destination).copyhere($Item)}}Get-FileDownload $WebURL  $FullFilePathExpand-ZipFile $FullFilePath c:\NexusSet-Location C:\Nexus$NexusFolder = (Get-ChildItem nexus* | Select-Object Name).Name# Create System Variable[Environment]::SetEnvironmentVariable("NEXUS_HOME", "C:\Nexus\$NexusFolder", "Machine")Set-Location "C:\Nexus\$NexusFolder"# Configure C:\Nexus\nexus-2.12.0-01\conf\nexus.properties#     Set Port Number if you want something other than 8081Set-Location bin# Nexus Download Link: http://www.sonatype.org/downloads/nexus-latest-bundle.zipClear-Host# URL Parameter$WebURL = "http://www.sonatype.org/downloads/nexus-latest-bundle.zip"# Directory Parameter$FileDirectory = "$($env:USERPROFILE)$("\downloads\")"#Write-Output $FileDirectory# If directory doesn't exist create the directoryif((Test-Path $FileDirectory) -eq 0){mkdir $FileDirectory;}# We assume the file you download is named what you want it to be on your computer$FileName = [System.IO.Path]::GetFileName($WebURL)# Concatenate the two values to prepare the download$FullFilePath = "$($FileDirectory)$($FileName)"#Write-Output $FullFilePathfunction Get-FileDownload([String] $WebURL, [String] $FullFilePath){# Give a basic message to the user to let them know what we are doingWrite-Output "Downloading '$WebURL' to '$FullFilePath'"$uri = New-Object "System.Uri" "$WebURL"$request = [System.Net.HttpWebRequest]::Create($uri)$request.set_Timeout(30000) #15 second timeout$response = $request.GetResponse()$totalLength = [System.Math]::Floor($response.get_ContentLength()/1024)$responseStream = $response.GetResponseStream()$targetStream = New-Object -TypeName System.IO.FileStream -ArgumentList $FullFilePath, Create$buffer = new-object byte[] 10KB$count = $responseStream.Read($buffer,0,$buffer.length)$downloadedBytes = $countwhile ($count -gt 0){[System.Console]::Write("`r`nDownloaded {0}K of {1}K", [System.Math]::Floor($downloadedBytes/1024), $totalLength)$targetStream.Write($buffer, 0, $count)$count = $responseStream.Read($buffer,0,$buffer.length)$downloadedBytes = $downloadedBytes + $count}$targetStream.Flush()$targetStream.Close()$targetStream.Dispose()$responseStream.Dispose()# Give a basic message to the user to let them know we are doneWrite-Output "`r`nDownload complete"}function Expand-ZipFile([string]$File, [string]$Destination) #The targets to run.{# If directory doesn't exist create the directoryif((Test-Path $Destination) -eq 0){mkdir $Destination;}$Shell = new-object -com shell.application# Get the name of the Zip file$Zip = $Shell.NameSpace($File)#Expand/Extract each file from the zip fileforeach($Item in $Zip.items()){$Shell.Namespace($Destination).copyhere($Item)}}Get-FileDownload $WebURL  $FullFilePathExpand-ZipFile $FullFilePath c:\NexusSet-Location C:\Nexus$NexusFolder = (Get-ChildItem nexus* | Select-Object Name).Name# Create System Variable[Environment]::SetEnvironmentVariable("NEXUS_HOME", "C:\Nexus\$NexusFolder", "Machine")Set-Location "C:\Nexus\$NexusFolder"# Configure C:\Nexus\nexus-2.12.0-01\conf\nexus.properties#     Set Port Number if you want something other than 8081Set-Location binStart-Process nexus.bat install -WaitStart-Process nexus.bat start -WaitStart-Process 'http://localhost:8081/nexus'

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A DevOps practitioner looking for Sponsored Visa Opportunities in Europe.

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Deeptesh Bhattacharya

Deeptesh Bhattacharya

A DevOps practitioner looking for Sponsored Visa Opportunities in Europe.

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