core/private/Get-CurrentSqlCmdPath.ps1

<#
The MIT License (MIT)
 
Copyright (c) 2015 Objectivity Bespoke Software Specialists
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
#>


function Get-CurrentSqlCmdPath {
    <#
    .SYNOPSIS
    Returns sqlcmd.exe folder path
 
    .DESCRIPTION
    Search for sqlcmd bin path in system registry. First found version will be returned.
 
    .EXAMPLE
    Get-CurrentSqlCmdPath
    #>
 

    [CmdletBinding()] 
    [OutputType([string])]
    param()

    $sqlServerVersions = @('120', '110', '100', '90')
    foreach ($version in $sqlServerVersions) {
        $regKey = "HKLM:\SOFTWARE\Microsoft\Microsoft SQL Server\$version\Tools\ClientSetup"
        if (Test-Path -LiteralPath $regKey) {
            $path = (Get-ItemProperty -Path $regKey).Path
            if ($path) {
                $path = Join-Path -Path $path -ChildPath 'sqlcmd.exe'
                if (Test-Path -LiteralPath $path) {
                    return $path
                }
            }
            $path = (Get-ItemProperty -Path $regKey).ODBCToolsPath
            if ($path) {
                $path = Join-Path -Path $path -ChildPath 'sqlcmd.exe'
                if (Test-Path -LiteralPath $path) {
                    return $path
                }
            }
        }
        # registry not found - try directory instead
        $path = "$($env:ProgramFiles)\Microsoft SQL Server\$version\Tools\Binn\sqlcmd.exe"
        if (Test-Path -LiteralPath $path) {
            return $path
        }
    }

    return $null
}