Reloading PATH for Chef on Windows

Readme.md

Reloading PATH for Chef on Windows

Many times when installing applications on Windows the path gets updated but Chef doesnt have the updated path. When the application gets called it cant find the application in path and the step fails.

Add the refreshenv.rb file to the libraries folder and notifies and ruby_block to the resource that needs reloading.

This code is from https://stackoverflow.com/a/49993683 and is based on the Chocolatey code

install_java.rb

directory 'c:\Java' do
  action :create
end

file 'c:\java\java.settings.cfg' do
  content 'INSTALL_SILENT=Enable
    AUTO_UPDATE=Disable
    WEB_JAVA=Enable
    WEB_ANALYTICS=Disable
    EULA=Disable
    REBOOT=Disable'
end

windows_package 'Java' do
  action :install
  source 'C:\Java\javainstall.exe'
  installer_type :custom
  options '/s INSTALLCFG=c:/java/java.settings.cfg'
  notifies :run, 'ruby_block[refreshenv]', :immediately
end

ruby_block 'refreshenv' do
  block do
    refresh_env
  end
  action :nothing
end

refreshenv.rb

# Copied from https://stackoverflow.com/a/49993683
require 'win32/registry' if Chef::Platform.windows?

def get_reg_env(hkey, subkey, &block)
  Win32::Registry.open(hkey, subkey) do |reg|
    reg.each_value do |name|
      value = reg.read_s_expand(name)
      ENV[name] = if block && ENV.key?(name)
                    yield(name, ENV[name], value)
                  else
                    value
                  end
    end
  end
end

def refresh_env
  get_reg_env(Win32::Registry::HKEY_LOCAL_MACHINE, 'System\CurrentControlSet\Control\Session Manager\Environment')
  get_reg_env(Win32::Registry::HKEY_CURRENT_USER, 'Environment') do |name, old_value, new_value|
    if name.upcase == 'PATH'
      old_value || File::PATH_SEPARATOR || new_value
    else
      new_value
    end
  end
end

# $env:Path = [System.Environment]::GetEnvironmentVariable("Path","Machine") + ";" + [System.Environment]::GetEnvironmentVariable("Path","User")