Public/Update-BicepParameterFile.ps1
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function Update-BicepParameterFile { [CmdletBinding()] param ( [ValidateNotNullOrEmpty()] [ValidatePattern('\.json$', ErrorMessage = 'Path must be a parameters file with a .json extension.')] [Parameter(Mandatory, Position = 1)] [string]$Path, [ValidateNotNullOrEmpty()] [ValidatePattern('\.bicep$', ErrorMessage = 'BicepFile must have a .bicep extension.')] [Parameter(Position = 2)] [string]$BicepFile, [ValidateNotNullOrEmpty()] [Parameter(Position = 3)] [ValidateSet('All', 'Required')] [string]$Parameters = 'All' ) begin { $tempPath = [System.Io.Path]::GetTempPath() } process { try { $ParamFile = Get-Item -Path $Path -ErrorAction Stop } catch { Write-Error "Cant find ParameterFile at specified Path $Path." Break } $FileName = $ParamFile.BaseName.Replace('.parameters', '') # Try to find a matching Bicep template for the provided parameter file based on its file name if (-not $PSBoundParameters.ContainsKey('BicepFile')) { $BicepFilePath = (Get-ChildItem $ParamFile.DirectoryName -Filter *.bicep | Where-Object { $_.BaseName -eq $FileName }).FullName if (-not $BicepFilePath) { Write-Error "Cant find BicepFile Named $FileName in directory: $($ParamFile.DirectoryName)" Break } } else { if (-not (Test-Path $BicepFile)) { Write-Error "Cant find BicepFile at specified Path $BicepFile." Break } $BicepFilePath = $BicepFile } $validateBicepFile = Test-BicepFile -Path $BicepFilePath -AcceptDiagnosticLevel Warning -IgnoreDiagnosticOutput if (-not $validateBicepFile) { Write-Error -Message "$BicepFilePath have build errors, make sure that the Bicep template builds successfully and try again." Write-Host "`nYou can use either 'Test-BicepFile' or 'Build-Bicep' to verify that the template builds successfully.`n" break } # Import the old parameter file and convert it to an ordered hashtable $oldParametersFile = Get-Content -Path $Path | ConvertFrom-Json -Depth 100 | ConvertToHashtable -Ordered # Generate a temporary Bicep Parameter File with all parameters $BicepFileName = (Get-Item -Path $BicepFilePath).BaseName New-BicepParameterFile -Path $BicepFilePath -OutputDirectory $tempPath -Parameters All $allParametersFilePath = $tempPath + "$($BicepFileName).parameters.json" # Convert the all parameters file to an ordered hashtable try { $allParametersFile = Get-Content -Path $allParametersFilePath -ErrorAction Stop | ConvertFrom-Json -Depth 100 | ConvertToHashtable -Ordered } catch { Write-Error "Failed to create Bicep ParameterObject." Break } # Remove any deleted parameters from old parameter file $oldParameterArray = @() $oldParametersFile.parameters.Keys.ForEach( { $oldParameterArray += $_ }) foreach ($item in $oldParameterArray) { if (-not $allParametersFile.parameters.Contains($item)) { $oldParametersFile.parameters.Remove($item) } } # Generate a new temporary Bicep Parameter File if -Parameters parameter is set to Required if ($Parameters -eq 'Required') { $BicepFileName = (Get-Item -Path $BicepFilePath).BaseName New-BicepParameterFile -Path $BicepFilePath -OutputDirectory $tempPath -Parameters $Parameters } $NewParametersFilePath = $tempPath + "$BicepFileName.parameters.json" # Convert the new parameter file to an ordered hashtable try { $NewParametersFile = Get-Content -Path $NewParametersFilePath -ErrorAction Stop | ConvertFrom-Json -Depth 100 | ConvertToHashtable -Ordered } catch { Write-Error "Failed to create Bicep ParameterObject." Break } $ParameterArray = @() $NewParametersFile.parameters.Keys.ForEach( { $ParameterArray += $_ }) # Iterate over the new parameters and add any missing to the old parameters array foreach ($item in $ParameterArray) { if (-not $oldParametersFile.parameters.Contains($item)) { $oldParametersFile.parameters[$item] = @{ value = $NewParametersFile.parameters.$item.value } } } $oldParametersFile | ConvertTo-Json -Depth 100 | Out-File -Path $Path -Force } end { Remove-Item $NewParametersFilePath -Force } } |