dbachecks

1.2.3

internal/functions/New-Json.ps1

                                
function New-Json {

    # Parse repo for tags and descriptions then write json

    $script:localapp = Get-DbcConfigValue -Name app.localapp

    $repos = Get-CheckRepo

    $collection = $groups = $repofiles = @()

    foreach ($repo in $repos) {

        $repofiles += (Get-ChildItem "$repo\*.Tests.ps1")

    }

    $tokens = $null

    $errors = $null

    foreach ($file in $repofiles) {

        $filename = $file.Name.Replace(".Tests.ps1", "")

        $Check = Get-Content $file -Raw

        ## Parse the file with AST 

        $CheckFileAST = [Management.Automation.Language.Parser]::ParseInput($check, [ref]$tokens, [ref]$errors)

        ## New code uses a Computer Name loop to speed up execution so need to find that as well

        $ComputerNameForEach = $CheckFileAST.FindAll([Func[Management.Automation.Language.Ast, bool]] {

                param ($ast) 

                $ast -is [System.Management.Automation.Language.InvokeMemberExpressionAst] -and $ast.expression.Subexpression.Extent.Text -eq 'Get-ComputerName'

            }, $true).Extent

        ## New code uses a Computer Name loop to speed up execution so need to find that as well

        $InstanceNameForEach = $CheckFileAST.FindAll([Func[Management.Automation.Language.Ast, bool]] {

            param ($ast) 

            $ast -is [System.Management.Automation.Language.InvokeMemberExpressionAst] -and $ast.expression.Subexpression.Extent.Text -eq 'Get-Instance'

        }, $true).Extent

        ## Old code we can use the describes

        $Describes = $CheckFileAST.FindAll([Func[Management.Automation.Language.Ast, bool]] {

                param ($ast)

                $ast.CommandElements -and

                $ast.CommandElements[0].Value -eq 'describe'

            }, $true)

        @($describes).ForEach{

            $groups += $filename

            $Describe = $_.CommandElements.Where{$PSItem.StaticType.name -eq 'string'}[1]

            $title = $Describe.Value

            $Tags = $PSItem.CommandElements.Where{$PSItem.StaticType.name -eq 'Object[]' -and $psitem.Value -eq $null}.Extent.Text.ToString().Replace(', $filename', '')

            # CHoose the type            

            if ($Describe.Parent -match "Get-Instance") {

                $type = "Sqlinstance"

            }

            elseif ($Describe.Parent -match "Get-ComputerName" -or $Describe.Parent -match "AllServerInfo") {

                $type = "ComputerName"

            }

            elseif ($Describe.Parent -match "Get-ClusterObject") {

                $Type = "ClusterNode"

            }

            else {

                #Choose the type from the new way from inside the foreach

                if ($ComputerNameForEach -match $title) {

                    $type = "ComputerName"

                }

                elseif($InstanceNameForEach -match $title){

                    $type = "Sqlinstance"

                }

                else {

                    $type = $null

                }

            }

            if ($filename -eq 'HADR') {

                ## HADR configs are outside of describe

                $configs = [regex]::matches($check, "Get-DbcConfigValue\s([a-zA-Z\d]*.[a-zA-Z\d]*.[a-zA-Z\d]*.[a-zA-Z\d]*\b)").groups.Where{$_.Name -eq 1}.Value

            }

            else {

                $configs = [regex]::matches($describe.Parent.Extent.Text, "Get-DbcConfigValue\s([a-zA-Z\d]*.[a-zA-Z\d]*.[a-zA-Z\d]*.[a-zA-Z\d]*\b)").groups.Where{$_.Name -eq 1}.Value

            }

            $Config = ''

            foreach ($c in $Configs) {$config += "$c "} # DON't DELETE THE SPACE in "$c "

            if ($filename -eq 'MaintenanceSolution') {

                # The Maintenance Solution needs a bit of faffing as the configs for the jobnames are used to create the titles

                switch ($tags -match $PSItem) {

                    {$Tags.Contains('SystemFull')} {

                        $config = 'ola.JobName.SystemFull ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.systemfull)

                    }                

                    {$Tags.Contains('UserFull')} {

                        $config = 'ola.JobName.UserFull ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.userfull)

                    }                

                    {$Tags.Contains('UserDiff')} {

                        $config = 'ola.JobName.UserDiff ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.userdiff)

                    }                

                    {$Tags.Contains('UserLog')} {

                        $config = 'ola.JobName.UserLog ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.userlog)

                    }                

                    {$Tags.Contains('CommandLog')} {

                        $config = 'ola.JobName.CommandLogCleanup ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.commandlogcleanup)

                    }                

                    {$Tags.Contains('SystemIntegrityCheck')} {

                        $config = 'ola.JobName.SystemIntegrity ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.systemintegrity)

                    }                

                    {$Tags.Contains('UserIntegrityCheck')} {

                        $config = 'ola.JobName.UserIntegrity ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.userintegrity)

                    }                

                    {$Tags.Contains('UserIndexOptimize')} {

                        $config = 'ola.JobName.UserIndex ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.userindex)

                    }                

                    {$Tags.Contains('OutputFileCleanup')} {

                        $config = 'ola.JobName.OutputFileCleanup ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.outputfilecleanup)

                    }                

                    {$Tags.Contains('DeleteBackupHistory')} {

                        $config = 'ola.JobName.DeleteBackupHistory ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.deletebackuphistory)

                    }                

                    {$Tags.Contains('PurgeJobHistory')} {

                        $config = 'ola.JobName.PurgeBackupHistory ' + $config

                        $title = 'Ola - ' + (Get-DbcConfigValue -Name ola.jobname.purgebackuphistory)

                    }                

                    Default {}

                }

            }

            # add the config for the type

            switch ($type) {

                SqlInstance {$config = 'app.sqlinstance ' + $config}

                ComputerName {$config = 'app.computername ' + $config}

                ClusterNode {$config = 'app.sqlinstance ' + $config}

                Default {}

            }

            if (-not $config) {$config = "None"}

            $collection += [pscustomobject]@{

                Group       = $filename

                Type        = $type

                UniqueTag   = $null

                AllTags     = "$tags, $filename"

                Config      = $config

                Description = $null

                Describe    = $title

            }

        }

    }

    $singletags = (($collection.AllTags -split ",").Trim() | Group-Object | Where-Object { $_.Count -eq 1 -and $_.Name -notin $groups })

    $Descriptions = Get-Content $script:ModuleRoot\internal\configurations\DbcCheckDescriptions.json -Raw| ConvertFrom-Json

    foreach ($check in $collection) {

        $unique = $singletags | Where-Object { $_.Name -in ($check.AllTags -split ",").Trim() }

        $check.UniqueTag = $unique.Name

        $Check.Description = $Descriptions.Where{$_.UniqueTag -eq $Check.UniqueTag}.Description

    }

    ConvertTo-Json -InputObject $collection | Out-File "$script:localapp\checks.json"

}

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