Functions/Invoke-SettingEvaluation.ps1
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<#
.SYNOPSIS Walks the settings to evaluate them and return an updated settings structure .DESCRIPTION Loops around all the properties in the settings (either hash keys or psobjects) and evaluates the values using Expand-String for strings or calling this function again for lists .EXAMPLE PS C:\> <example usage> Explanation of what the example does .INPUTS settings = the global settings used to allow expressions to refer to the settings i.e. databaseName = "{$Settings.environment & "-" & $settings.Project" thisSettings = the object to be evaluating the keys of. .OUTPUTS Output (if any) .NOTES General notes #> Function Invoke-SettingEvaluation { [CmdletBinding()] param($settings , $thisSettings) if ($null -eq $thisSettings ) { Write-Verbose "Evaluating Settings in order that we found them..." $thisSettings = $settings } if ($thisSettings -is [psobject] -or $thisSettings -is [hashtable]) { $props = $thisSettings.PSObject.properties if ($null -ne $props) { $settingName = "" $value = "" try { $thisSettings.PSObject.properties | ForEach-Object { $settingName = "$($_.Name)" $value = $thisSettings.$settingName Write-Verbose "Processing key $settingName with value $value" if ($null -eq $value) { $thisSettings.$settingName = $null Write-Verbose "Setting $settingName to `$null" } elseif ($value -is [String] ) { $thisSettings.$settingName = Expand-String $value Write-Verbose "Setting $settingName to $($thisSettings.$settingName)" } elseif ($value -is [datetime] ) { $thisSettings.$settingName = $value Write-Verbose "Setting $settingName to $($thisSettings.$settingName)" } elseif ($value -is [object[]]) { $index = 0 Write-Verbose " Processing Array" foreach ($item in $value) { $thisSettings."$settingName"[$index] = Invoke-SettingEvaluation -thisSettings $value[$index] -settings $settings $index++ } } elseif ($value -isnot [securestring] ) { foreach ($item in $value.psobject.Properties) { $name = $item.Name $thisSettings.$settingName.$name = Invoke-SettingEvaluation -thisSettings $value.$name -settings $settings } } else { Write-Verbose " Setting $($thisSettings.GetType().Name) $($value.GetType().Name) $settingName to $value" # $value | Invoke-Expression } } } catch { $desc = "Evaluating expression for $settingName with expression $value failed`n$($_.Exception.Message)" $PSCmdlet.ThrowTerminatingError([System.Management.Automation.ErrorRecord]::new([Exception]::new($desc,$_.Exception), '', [System.Management.Automation.ErrorCategory]::OpenError, "")) } } } else { $thisSettings = Expand-String $thisSettings } Write-Verbose "Settings Done:" Write-Verbose "$($thisSettings | ConvertTo-Json -depth 5)" return $thisSettings } |