1<#
 2.SYNOPSIS
 3    Deploys the SharePoint solution EntraCP.wsp, created with the deployment mode "Application"
 4.DESCRIPTION
 5    Run this script ONLY on the server running the central administration, in a new PowerShell process.
 6    The script does not require any modification, except to update the path in $packagefullpath.
 7
 8    EntraCP.wsp uses deployment mode "Application", which by design makes its deployment much more secure than AzureCP.
 9    Because contrary to AzureCP, running Install-SPSolution does NOT install the features in the farm, which prevents conflicts.
10.LINK
11    https://entracp.yvand.net/docs/usage/installation/
12#>
13
14$product = "EntraCP"
15$packagefullpath = "C:\YvanData\$product.wsp" # Only update the path here
16
17# Add the solution if it's not already present in the farm
18if ($null -eq (Get-SPSolution -Identity "$product.wsp" -ErrorAction SilentlyContinue)) {
19    Write-Host "Adding solution $product.wsp to the farm..."
20    Add-SPSolution -LiteralPath $packagefullpath
21}
22
23$count = 0
24while (($count -lt 20) -and ($null -eq $solution))
25{
26    Write-Host "Waiting for the solution $product.wsp to be available..."
27    Start-Sleep -Seconds 5
28    $solution = Get-SPSolution -Identity "$product.wsp"
29    $count++
30}
31
32if ($null -eq $solution) {
33    Write-Error "Solution $product.wsp could not be found in the farm."
34    throw ("Solution $product.wsp could not be found in the farm.")
35}
36
37Write-Host "Deploying solution $product.wsp globally..."
38Install-SPSolution -Identity "$product.wsp" -GACDeployment
39
40$solution = Get-SPSolution -Identity "$product.wsp"
41$count = 0
42while (($count -lt 20) -and ($false -eq $solution.Deployed))
43{
44    Write-Host "Waiting for the solution $product.wsp to be deployed..."
45    Start-Sleep -Seconds 10
46    $solution = Get-SPSolution -Identity "$product.wsp"
47    $count++
48}
49
50if ($null -ne (Get-SPFeature| Where-Object{$_.SolutionId -eq $solution.SolutionId}) -or
51    $null -ne (Get-SPClaimProvider -Identity "$product" -ErrorAction SilentlyContinue)) {
52  Write-Warning "The claims provider and/or the features are already installed, skip Install-SPFeature"
53} else {
54  Write-Host "Installing the features in the solution $product.wsp..."
55  Install-SPFeature -SolutionId $solution.Id -AllExistingFeatures
56}
57Write-Host "Finished."