dbachecks

1.1.158

functions/Set-DbcConfig.ps1

                                <#

.SYNOPSIS

Sets configuration values for specific checks.

.DESCRIPTION

Changes configuration values which enable each check to have specific threshholds

.PARAMETER Name

Name of the configuration entry.

.PARAMETER Value

The value to assign.

.PARAMETER Handler

A scriptblock that is executed when a value is being set.

Is only executed if the validation was successful (assuming there was a validation, of course)

.PARAMETER Append

Adds the value to the existing configuration instead of overwriting it

.PARAMETER Temporary

The setting is not persisted outside the current session.

By default, settings will be remembered across all powershell sessions.

.PARAMETER EnableException

By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.

This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting.

Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch.

.EXAMPLE

Set-DbcConfig -Name app.sqlinstance -Value sql2016, sql2017, sqlcluster

Sets the SQL Instances which will be checked by default using Invoke-DbcCheck 

to sql2016, sql2017, sqlcluster

.EXAMPLE

Set-DbcConfig -Name policy.validdbowner.name -Value 'TheBeard\sqldbowner' 

Sets the value of the configuration for the expected database owners to

TheBeard\sqldbowner

.EXAMPLE

Set-DbcConfig -Name policy.database.status.excludereadonly -Value 'TheBeard' 

Sets the value of the configuration for databases that are expected to be readonly

to TheBeard

.EXAMPLE

Set-DbcConfig -Name agent.validjobowner.name -Value 'TheBeard\SQLJobOwner' -Append

Adds 'TheBeard\SQLJobOwner' to the value of the configuration for accounts that 

are expected to be owners of SQL Agent Jobs 

.LINK

https://dbachecks.readthedocs.io/en/latest/functions/Set-DbcConfig/

#>

function Set-DbcConfig {

    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseShouldProcessForStateChangingFunctions", "")]

    [CmdletBinding(DefaultParameterSetName = "FullName")]

    param (

        [string]$Name,

        [AllowNull()]

        [AllowEmptyCollection()]

        [AllowEmptyString()]

        $Value,

        [System.Management.Automation.ScriptBlock]$Handler,

        [switch]$Append,

        [switch]$Temporary,

        [switch]$EnableException

    )

    process {

        if (-not (Get-DbcConfig -Name $Name)) {

            Stop-PSFFunction -Message "Setting named $Name does not exist. If you'd like us to support an additional setting, please file a GitHub issue."

            return

        }

        if ($Append) {

            $NewValue = (Get-DbcConfigValue -Name $Name)

            # this is important to fix issue 535

            # Need to process arrays correctly

            if ($NewValue -is [System.Array]) {

                if ($value -is [System.Array]) {

                    $Value.ForEach{

                        $NewValue += $psitem

                    }

                }

                else {

                    $NewValue += $Value

                }

            }

            else {

                $NewValue = $NewValue, $Value

            }

        }

        else {

            $NewValue = $Value

        }

        $Name = $Name.ToLower()

        Set-PSFConfig -Module dbachecks -Name $name -Value $NewValue

        try {

            if (-not $Temporary) { Register-PSFConfig -FullName dbachecks.$name -EnableException -WarningAction SilentlyContinue }

        }

        catch {

            Set-PSFConfig -Module dbachecks -Name $name -Value ($Value -join ", ")

            if (-not $Temporary) { Register-PSFConfig -FullName dbachecks.$name }

        }

        # Still unsure if I'll persist it here - wondering if this impacts global or keeps local

        if ($name -eq 'app.sqlcredential') {

            Set-Variable -Scope 1 -Name PSDefaultParameterValues -Value @{ '*:SqlCredential' = $value }

        }

        Get-DbcConfig -Name $name

    }

}

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