WebKitDev

0.5.0

Functions/Install-MSYS2.ps1

                                # Copyright (c) 2019, the WebKit for Windows project authors.  Please see the

# AUTHORS file for details. All rights reserved. Use of this source code is

# governed by a BSD-style license that can be found in the LICENSE file.

<#

  .Synopsis

  Installs MSYS2.

  .Description

  Downloads the specified release of MSYS2 and installs it silently on the

  host.

  .Parameter Version

  The version of MSYS2 to install.

  .Parameter InstallationPath

  The location to install to.

  .Example

    # Install 20190524

    Install-MSYS2 -Version 20190524

#>

function Install-MSYS2 {

    param(

        [Parameter(Mandatory)]

        [string]$version,

        [Parameter(Mandatory)]

        [string]$installationPath,

        [Parameter()]

        [switch]$noPath = $false

    )

    $url = ('http://repo.msys2.org/distrib/x86_64/msys2-base-x86_64-{0}.tar.xz' -f $version)

    Install-FromArchive -Name 'msys2' -url $url -installationPath $installationPath -archiveRoot 'msys64' -noVerify;

    # Setup the environment

    #

    # This is taken from different dockerfiles that do not call `msys2_shell.cmd`.

    Write-Information -MessageData 'Initializing MSYS2 environment' -InformationAction Continue;

    $env:MSYSTEM = 'MSYS2';

    $env:MSYSCON = 'defterm';

    [Environment]::SetEnvironmentVariable('MSYSTEM',$env:MSYSTEM,[EnvironmentVariableTarget]::Machine);

    [Environment]::SetEnvironmentVariable('MSYSCON',$env:MSYSCON,[EnvironmentVariableTarget]::Machine);

    # Temp file for output

    # MSYS2 has a problem with interactive docker shells so just pipe output

    # to a temporary file and read from that to get results of commands.

    # https://github.com/msys2/MSYS2-packages/issues/1490

    $outFile = New-TemporaryFile;

    # Run bash a singular time

    Write-Information -MessageData '`n=================  STARTING BASH  =================`n' -InformationAction Continue;

    Set-Alias bash (Join-Path $installationPath -ChildPath 'usr' | Join-Path -ChildPath 'bin' | Join-Path -ChildPath 'bash.exe');

    bash.exe -lc 'exit 0' > $outFile;

    Get-Content $outFile;

    # Update steps taken from chocolatey package

    # https://github.com/msys2/msys2/wiki/MSYS2-installation

    Write-Information -MessageData 'Repeating system update until there are no more updates or max 5 iterations' -InformationAction Continue;

    $ErrorActionPreference = 'Continue'; # otherwise bash warnings will exit

    while (!$done) {

        Write-Information -MessageData '`n================= SYSTEM UPDATE $((++$i)) =================`n' -InformationAction Continue;

        bash.exe -lc 'pacman --noconfirm -Syuu' > $outFile;

        Get-Content $outFile;

        $done = (Get-Content $outFile) -match 'there is nothing to do' | Measure-Object | ForEach-Object { $_.Count -eq 2 };

        $done = $done -or ($i -ge 5);

    }

    Remove-Item $outFile;

    if (!$noPath) {

        # Add MSYS2 usr/bin to path

        Register-SystemPath (Join-Path $installationPath -ChildPath 'usr' | Join-Path -ChildPath 'bin');

    }

}