Resolve-MSBuild

1.4.1

Resolve-MSBuild.ps1

<#PSScriptInfo
.VERSION 1.4.1
.AUTHOR Roman Kuzmin
.COPYRIGHT (c) Roman Kuzmin
.TAGS Invoke-Build, MSBuild
.GUID 53c01926-4fc5-4cbd-aa46-32e415b2373b
.LICENSEURI http://www.apache.org/licenses/LICENSE-2.0
.PROJECTURI https://github.com/nightroman/Invoke-Build
#>

<#
.Synopsis
    Finds the specified or latest MSBuild.
 
.Description
    The script finds the path to the specified or latest version of MSBuild.
    It is designed for MSBuild 16.0, 15.0, 14.0, 12.0, 4.0, 3.5, 2.0.
 
    For MSBuild 15+ the command uses the module VSSetup, see PSGallery.
    If VSSetup is not installed then the default locations are used.
    VSSetup is required for not default installations.
 
    MSBuild 15+ resolution: the latest major version (or absolute if -Latest),
    then Enterprise, Professional, Community, BuildTools, other products.
 
    For MSBuild 2.0-14.0 the information is taken from the registry.
 
.Parameter Version
        Specifies the required MSBuild version. If it is omitted, empty, or *
        then the command finds and returns the latest installed version path.
        The optional suffix x86 tells to use 32-bit MSBuild.
        Known versions: 16.0, 15.0, 14.0, 12.0, 4.0, 3.5, 2.0
.Parameter Latest
        Tells to select the latest minor version if there are 2+ products with
        the same major version. Note that major versions have higher precedence
        than products regardless of -Latest.
 
.Outputs
    The full path to MSBuild.exe
 
.Example
    Resolve-MSBuild 16.0x86
    Gets the location of 32-bit MSBuild of Visual Studio 2019.
 
.Link
    https://www.powershellgallery.com/packages/VSSetup
#>

[OutputType([string])]
[CmdletBinding()]
param(
    [string]$Version,
    [switch]$Latest
)

function Get-MSBuild15Path {
    [CmdletBinding()] param(
        [string]$Version,
        [string]$Bitness
    )

    if ([System.IntPtr]::Size -eq 4 -or $Bitness -eq 'x86') {
        "MSBuild\$Version\Bin\MSBuild.exe"
    }
    else {
        "MSBuild\$Version\Bin\amd64\MSBuild.exe"
    }
}

function Get-MSBuild15VSSetup {
    [CmdletBinding()] param(
        [string]$Version,
        [string]$Bitness,
        [switch]$Latest,
        [switch]$Prerelease
    )

    if (!(Get-Module VSSetup)) {
        if (!(Get-Module VSSetup -ListAvailable)) {return}
        Import-Module VSSetup
    }

    $items = @(
        $v = switch($Version) {
            '16.0' {'[16.0,17.0)'}
            '15.0' {'[15.0,16.0)'}
            default {'[15.0,)'}
        }
        Get-VSSetupInstance -Prerelease:$Prerelease |
        Select-VSSetupInstance -Version $v -Require Microsoft.Component.MSBuild -Product *
    )
    if (!$items) {
        if (!$Prerelease) {
            Get-MSBuild15VSSetup $Version $Bitness -Latest:$Latest -Prerelease
        }
        return
    }

    if ($items.Count -ge 2) {
        $byVersion = if ($Latest) {{$_.InstallationVersion}} else {{$_.InstallationVersion.Major}}
        $byProduct = {
            switch ($_.Product) {
                Microsoft.VisualStudio.Product.Enterprise {4}
                Microsoft.VisualStudio.Product.Professional {3}
                Microsoft.VisualStudio.Product.Community {2}
                Microsoft.VisualStudio.Product.BuildTools {1}
                default {0}
            }
        }
        $items = $items | Sort-Object $byVersion, $byProduct
    }

    $item = $items[-1]
    if ($item.InstallationVersion.Major -eq 15) {
        $Version = '15.0'
    }
    else {
        $Version = 'Current'
    }
    Join-Path $item.InstallationPath (Get-MSBuild15Path $Version $Bitness)
}

function Get-MSBuild15Guess {
    [CmdletBinding()] param(
        [string]$Version,
        [string]$Bitness,
        [switch]$Latest,
        [switch]$Prerelease
    )

    if (!($root = ${env:ProgramFiles(x86)})) {$root = $env:ProgramFiles}

    $folders = $(
        if ($Prerelease) {'Preview'}
        elseif ($Version -eq '*') {'2019', '2017'}
        elseif ($Version -eq '16.0') {'2019'}
        else {'2017'}
    )
    $items = @(
        foreach($folder in $folders) {
            Get-Item -ErrorAction 0 @(
                "$root\Microsoft Visual Studio\$folder\*\$(Get-MSBuild15Path Current $Bitness)"
                "$root\Microsoft Visual Studio\$folder\*\$(Get-MSBuild15Path $Version $Bitness)"
            )
        }
    )
    if (!$items) {
        if (!$Prerelease) {
            Get-MSBuild15Guess $Version $Bitness -Latest:$Latest -Prerelease
        }
        return
    }

    if ($items.Count -ge 2) {
        $byVersion = if ($Latest) {{[version]$_.VersionInfo.FileVersion}} else {{([version]$_.VersionInfo.FileVersion).Major}}
        $byProduct = {
            switch -Wildcard ($_.FullName) {
                *\Enterprise\* {4}
                *\Professional\* {3}
                *\Community\* {2}
                *\BuildTools\* {1}
                default {0}
            }
        }
        $items = $items | Sort-Object $byVersion, $byProduct
    }

    $items[-1].FullName
}

function Get-MSBuild15 {
    [CmdletBinding()] param(
        [string]$Version,
        [string]$Bitness,
        [switch]$Latest
    )

    if ($path = Get-MSBuild15VSSetup $Version $Bitness -Latest:$Latest) {
        $path
    }
    else {
        Get-MSBuild15Guess $Version $Bitness -Latest:$Latest
    }
}

function Get-MSBuildOldVersion {
    [CmdletBinding()] param(
        [string]$Version,
        [string]$Bitness
    )

    if ([System.IntPtr]::Size -eq 8 -and $Bitness -eq 'x86') {
        $key = "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\MSBuild\ToolsVersions\$Version"
    }
    else {
        $key = "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSBuild\ToolsVersions\$Version"
    }
    $rp = [Microsoft.Win32.Registry]::GetValue($key, 'MSBuildToolsPath', '')
    if ($rp) {
        Join-Path $rp MSBuild.exe
    }
}

function Get-MSBuildOldLatest {
    [CmdletBinding()] param(
        [string]$Bitness
    )

    $rp = @(Get-ChildItem HKLM:\SOFTWARE\Microsoft\MSBuild\ToolsVersions | Sort-Object {[Version]$_.PSChildName})
    if ($rp) {
        Get-MSBuildOldVersion $rp[-1].PSChildName $Bitness
    }
}

$ErrorActionPreference = 1
try {
    if ($Version -match '^(.*?)x86\s*$') {
        $Version = $matches[1]
        $Bitness = 'x86'
    }
    else {
        $Bitness = ''
    }
    $Version = $Version.Trim()

    $v16 = [Version]'16.0'
    $v15 = [Version]'15.0'
    $vMax = [Version]'9999.0'
    if (!$Version) {$Version = '*'}
    $vRequired = if ($Version -eq '*') {$vMax} else {[Version]$Version}

    if ($vRequired -eq $v16 -or $vRequired -eq $v15) {
        if ($path = Get-MSBuild15 $Version $Bitness -Latest:$Latest) {
            return $path
        }
    }
    elseif ($vRequired -lt $v15) {
        if ($path = Get-MSBuildOldVersion $Version $Bitness) {
            return $path
        }
    }
    elseif ($vRequired -eq $vMax) {
        if ($path = Get-MSBuild15 * $Bitness -Latest:$Latest) {
            return $path
        }
        if ($path = Get-MSBuildOldLatest $Bitness) {
            return $path
        }
    }

    throw 'The specified version is not found.'
}
catch {
    Write-Error "Cannot resolve MSBuild $Version : $_"
}