Beta_cartrigesg_bd Beta v0.1

installer/download_postgresql.ps1

@@ -0,0 +1,31 @@
+[CmdletBinding()]
+param(
+    [string]$Version = '18.4-1',
+    [string]$Destination = (Join-Path $PSScriptRoot 'prerequisites\postgresql-18-windows-x64.exe')
+)
+
+$ErrorActionPreference = 'Stop'
+$destinationDirectory = Split-Path -Parent $Destination
+New-Item -ItemType Directory -Path $destinationDirectory -Force | Out-Null
+
+$url = "https://get.enterprisedb.com/postgresql/postgresql-$Version-windows-x64.exe"
+$temporaryFile = "$Destination.download"
+
+Write-Host "Downloading PostgreSQL $Version from $url"
+Invoke-WebRequest -Uri $url -OutFile $temporaryFile -UseBasicParsing
+
+$signature = Get-AuthenticodeSignature -FilePath $temporaryFile
+if ($signature.Status -ne 'Valid') {
+    Remove-Item -LiteralPath $temporaryFile -Force -ErrorAction SilentlyContinue
+    throw "PostgreSQL installer signature is not valid: $($signature.Status)"
+}
+
+if ($signature.SignerCertificate.Subject -notmatch 'EnterpriseDB|EDB') {
+    Remove-Item -LiteralPath $temporaryFile -Force -ErrorAction SilentlyContinue
+    throw "Unexpected PostgreSQL installer signer: $($signature.SignerCertificate.Subject)"
+}
+
+Move-Item -LiteralPath $temporaryFile -Destination $Destination -Force
+$hash = Get-FileHash -LiteralPath $Destination -Algorithm SHA256
+Write-Host "Saved: $Destination"
+Write-Host "SHA256: $($hash.Hash)"