Chocolatey Web Installer NSIS Script

choco-installer.nsi

; Chocolatey Web Installer
; By Jake Stine
;
; This is currently a one-way install.  No uninstaller is provided.
; Uninstalling Chocolatey normally consists of deleting the chocolatey dir and removing
; Chocolatey from the PATH.

!include "LogicLib.nsh"

name "Chocolatey Web Installer"
Outfile "ChocolateyWebInstall.exe"
RequestExecutionLevel admin

Section

SetDetailsView show
ExpandEnvStrings $0 "%SystemRoot%"

nsExec::ExecToLog '"$0\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString($\'https://chocolatey.org/install.ps1$\'))"'
Pop $0

${If} $0 == "error"
	; try running powershell in path, just in case ...
	nsExec::ExecToLog '"powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString($\'https://chocolatey.org/install.ps1$\'))"'
	Pop $0

	${If} $0 == "error"
		DetailPrint "ERROR: Powershell is not installed!"
		DetailPrint "Powershell is a Microsoft product that normally comes pre-installed"
		DetailPrint "on Windows Vista, 7,8, 10+. It's installer can be found somewhere on"
		DetailPrint "the web."
		Abort
	${EndIf}
${EndIf}

${If} $0 = 0
	; Check if the path entry already exists and write result to $0
	nsExec::Exec 'echo %PATH% | find "%ALLUSERSPROFILE%\chocolatey\bin"'
	Pop $0   ; gets result code

	${If} $0 <> 0
		DetailPrint "Adding Chocolatey to PATH..."
		nsExec::Exec 'set PATH=%PATH%;%ALLUSERSPROFILE%\chocolatey\bin'
		DetailPrint "IMPORTANT: You will need to restart any running cmd shells for the"
		DetailPrint "Chocolatey path to become effective!"
	${EndIf}
${EndIf}

SectionEnd