PSCI

1.0.11

modules/deploy/PrivateHelpers/SSDT/Import-SqlServerDacDll.ps1

<#
The MIT License (MIT)
 
Copyright (c) 2015 Objectivity Bespoke Software Specialists
 
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The above copyright notice and this permission notice shall be included in all
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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#>

function Import-SqlServerDacDll {
    
    <#
    .SYNOPSIS
    Finds and imports Microsoft.SqlServer.Dac.dll.
     
    .PARAMETER SqlServerVersion
    Sql Server version to get dll from. If empty, the highest available version will be used.
    
    .EXAMPLE
    Import-SqlServerDacDll
    #>
    [CmdletBinding()]
    [OutputType([void])]
    param(
        [Parameter(Mandatory=$false)]
        [string]
        [ValidateSet($null, '2012', '2014')]
        $SqlServerVersion
    )

    Write-Log -_Debug "Searching for Microsoft.SqlServer.Dac.dll."

    # https://social.msdn.microsoft.com/Forums/sqlserver/en-US/be484b63-a6cc-4dac-a2c2-78a56ff5b502/where-is-the-microsoftsqlserverdacdll-that-includes-support-for-sql-server-2014?forum=ssdt
    
    $potentialDacDllPaths = @()
    $sqlServerPath = Join-Path -Path (Get-ProgramFilesx86Path) -ChildPath 'Microsoft SQL Server'
    if (Test-Path -LiteralPath $sqlServerPath) {
        $potentialDacDllPaths += $sqlServerPath
    }

    $vsPath = Get-VisualStudioPath -VisualStudioVersion $VisualStudioVersion
    if ($vsPath) {
        foreach ($path in $vsPath) {
            $dacPath = Join-Path -Path $path -ChildPath 'Common7\IDE\Extensions\Microsoft\SQLDB\DAC'
            if (Test-Path -LiteralPath $dacPath) {
                $potentialDacDllPaths += $dacPath
            }
        }
    }

    if (!$potentialDacDllPaths) {
        throw "Cannot find neither '$sqlServerPath' nor Visual Studio directories. Please ensure you have SSDT or Data-Tier Application Framework installed."
    }

    if ($SqlServerVersion) { 
        $sqlServerVersionMap = @{ 
            '2012' = '11'
            '2014' = '12'
        }
        $potentialDacDllPathsVer = Get-ChildItem -Path $potentialDacDllPaths -Filter $sqlServerVersionMap[$SqlServerVersion] -Directory
    } else { 
        $potentialDacDllPathsVer = Get-ChildItem -Path $potentialDacDllPaths -Directory | Sort-Object { ConvertTo-Integer -Value $_.Name } -Descending
    }

    if (!$potentialDacDllPathsVer) {
        throw "Cannot find any DAC version directory under any of following directories: $($potentialDacDllPaths -join ', '). Please ensure you have SSDT or Data-Tier Application Framework installed."
    }

    foreach ($potentialDacDllPath in $potentialDacDllPathsVer) {
        $path = Join-Path -Path $potentialDacDllPath.FullName -ChildPath 'Dac\bin\Microsoft.SqlServer.Dac.dll'
        if (Test-Path -LiteralPath $path) {
            $dacDllPath = $path
            break
        }
        $path = Join-Path -Path $potentialDacDllPath.FullName -ChildPath 'Microsoft.SqlServer.Dac.dll'
        if (Test-Path -LiteralPath $path) {
            $dacDllPath = $path
            break
        }
    }

    if (!$dacDllPath) {
       throw "Cannot find Microsoft.SqlServer.Dac.dll under any of following directories: $($potentialDacDllPathsVer.FullName -join ', '). Please ensure you have SSDT or Data-Tier Application Framework installed."
    }

    Write-Log -_Debug "Found at '$dacDllPath' - importing."
    Add-Type -Path $dacDllPath
}