dbatools

1.1.8

internal/functions/Invoke-DbaDiagnosticQueryScriptParser.ps1

                                function Invoke-DbaDiagnosticQueryScriptParser {

    [CmdletBinding(DefaultParameterSetName = "Default")]

    Param(

        [parameter(Mandatory)]

        [ValidateScript( { Test-Path $_ })]

        [System.IO.FileInfo]$filename,

        [Switch]$ExcludeQueryTextColumn,

        [Switch]$ExcludePlanColumn,

        [Switch]$NoColumnParsing

    )

    $out = "Parsing file {0}" -f $filename

    Write-Verbose -Message $out

    $ParsedScript = @()

    [string]$scriptpart = ""

    $fullscript = Get-Content -Path $filename

    $start = $false

    $querynr = 0

    $DBSpecific = $false

    if ($ExcludeQueryTextColumn) { $QueryTextColumn = "" }  else { $QueryTextColumn = ", t.[text] AS [Complete Query Text]" }

    if ($ExcludePlanColumn) { $PlanTextColumn = "" } else { $PlanTextColumn = ", qp.query_plan AS [Query Plan]" }

    foreach ($line in $fullscript) {

        if ($start -eq $false) {

            if (($line -match "You have the correct major version of SQL Server for this diagnostic information script") -or ($line.StartsWith("-- Server level queries ***") -or ($line.StartsWith("-- Instance level queries ***")))) {

                $start = $true

            }

            continue

        }

        if ($line.StartsWith("-- Database specific queries ***") -or ($line.StartsWith("-- Switch to user database **"))) {

            $DBSpecific = $true

        }

        if (!$NoColumnParsing) {

            if (($line -match "-- uncomment out these columns if not copying results to Excel") -or ($line -match "-- comment out this column if copying results to Excel")) {

                $line = $QueryTextColumn + $PlanTextColumn

            }

        }

        if ($line -match "-{2,}\s{1,}(.*) \(Query (\d*)\) \((\D*)\)") {

            $prev_querydescription = $Matches[1]

            $prev_querynr = $Matches[2]

            $prev_queryname = $Matches[3]

            if ($querynr -gt 0) {

                $properties = @{QueryNr = $querynr; QueryName = $queryname; DBSpecific = $DBSpecific; Description = $queryDescription; Text = $scriptpart }

                $newscript = New-Object -TypeName PSObject -Property $properties

                $ParsedScript += $newscript

                $scriptpart = ""

            }

            $querydescription = $prev_querydescription

            $querynr = $prev_querynr

            $queryname = $prev_queryname

        } else {

            if (!$line.startswith("--") -and ($line.trim() -ne "") -and ($null -ne $line) -and ($line -ne "\n")) {

                $scriptpart += $line + "`n"

            }

        }

    }

    $properties = @{QueryNr = $querynr; QueryName = $queryname; DBSpecific = $DBSpecific; Description = $queryDescription; Text = $scriptpart }

    $newscript = New-Object -TypeName PSObject -Property $properties

    $ParsedScript += $newscript

    $ParsedScript

}

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# SIG # End signature block