Create an awesome installer

Signed-off-by: Chris Wahl <github@wahlnetwork.com>

Install-Rubrik.ps1

@@ -1,5 +1,119 @@
-Write-Warning 'This command has been deprecated in favor of the PowerShell Gallery'
-Write-Warning '  To Install: Use "Install-Module -Name Rubrik -Scope CurrentUser"'
-Write-Warning '  To Upgrade: Use "Update-Module -Name Rubrik"'
-Write-Warning 'See the online documentation for more details'
-Write-Warning '  http://powershell-module.readthedocs.io/en/latest/installation.html'
+function GetRubrikInstall 
+{
+  # Returns the known installation locations for the Rubrik Module
+  return Get-Module -ListAvailable -Name Rubrik -ErrorAction SilentlyContinue | Select-Object -Property Name, Version, ModuleBase
+}
+
+function GetPSModulePath 
+{
+  # Returns all available PowerShell Module paths  
+  return $env:PSModulePath.Split(';')
+}
+
+function InstallMenu 
+{
+  # Creates a menu of available install or upgrade locations for the module
+  Param(
+    [Array]$InstallPathList,
+    [ValidateSet('installation','upgrade or delete')]
+    [String]$InstallAction
+  )
+  $i = 1
+  foreach ($Location in $InstallPathList)
+  {
+    Write-Host -Object "$i`: $Location"
+    $i++
+  }
+
+  While ($true) 
+  {
+    [int]$LocationSelection = Read-Host -Prompt "`nPlease select an $InstallAction path"
+    if ($LocationSelection -lt 1 -or $LocationSelection -gt $InstallPathList.Length)
+    {
+      Write-Host -Object "Invalid selection. Please enter a number in range [1-$($InstallPathList.Length)]"
+    } 
+    else
+    {
+      break
+    }
+  }
+
+  return $InstallPathList[($LocationSelection - 1)]
+}
+
+function RemoveModuleContent 
+{
+  # Attempts to remove contents from an existing installation
+  try 
+  {
+    Remove-Item -Path $InstallPath -Recurse -Force -ErrorAction Stop -Confirm:$true
+  }
+  catch 
+  {
+    throw "$($_.ErrorDetails)"
+  }
+}
+
+function CreateModuleContent
+{
+  # Attempts to create a new folder and copy over the Rubrik Module contents
+  try
+  {
+    $null = New-Item -ItemType Directory -Path $InstallPath -Force -ErrorAction Stop
+    $null = Copy-Item $PSScriptRoot\Rubrik\* $InstallPath -Force -Recurse -ErrorAction Stop
+    $null = Test-Path -Path $InstallPath -ErrorAction Stop
+
+    Write-Host -Object "`nInstallation successful."
+  }
+  catch 
+  {
+    throw $_
+  }
+}
+
+function ReportRubrikModule
+{
+  # Removes the Rubrik Module from the active session and displays a list of all current install locations
+  Remove-Module -Name Rubrik -ErrorAction SilentlyContinue
+  GetRubrikInstall
+}
+
+### Code
+Clear-Host
+
+[Array]$RubrikInstall = GetRubrikInstall
+if ($RubrikInstall.Length -gt 0)
+{
+  Write-Warning -Message 'Found an existing Rubrik Module installed.' -WarningAction Continue
+  $RubrikInstall += @{
+    Name       = 'Delete All'
+    Version    = 0.0.0.0
+    ModuleBase = 'DELETE all listed installations of the Rubrik Module'
+  }
+  $InstallPath = InstallMenu -InstallPathList $RubrikInstall.ModuleBase -InstallAction 'upgrade or delete'
+
+  if ($InstallPath.Split(' ')[0] -eq 'DELETE')
+  {
+    foreach ($Location in ([Array]$RubrikInstall = GetRubrikInstall).ModuleBase)
+    {
+      $InstallPath = $Location
+      RemoveModuleContent      
+    }
+    break
+  }
+  else
+  {
+    RemoveModuleContent
+    CreateModuleContent
+  }
+}
+else
+{
+  Write-Warning -Message 'Could not find an existing Rubrik Module installation.' -WarningAction Continue
+  $InstallPath = InstallMenu -InstallPathList (GetPSModulePath) -InstallAction installation
+  $InstallPath = $InstallPath + '\Rubrik\'
+  CreateModuleContent
+}
+
+Write-Host -Object "`nRubrik Module installation location(s):"
+ReportRubrikModule | Format-Table