git.ps1

$ErrorActionPreference = "Stop"

$tempDir = Join-Path ([System.IO.Path]::GetTempPath()) ([System.IO.Path]::GetRandomFileName())
$null = New-Item -ItemType Directory -Path $tempDir -Force -ErrorAction SilentlyContinue

try {
    $metadata = Invoke-RestMethod "https://api.github.com/repos/git-for-windows/git/releases/latest"
    $downloadUrl  =  $metadata.assets.browser_download_url -match "Git-.+-64-bit.exe"

    Write-Verbose "download package from '$downloadURL'" -Verbose

    $packagePath = Join-Path -Path $tempDir -ChildPath "git"
    Invoke-WebRequest -Uri $downloadURL.toString() -OutFile $packagePath

    Write-Verbose "Performing quiet install"
    
    $ArgumentList=@("/i", $packagePath, "/VERYSILENT", `
                    "/NORESTART", `
                    "/NOCANCEL", `
                    "/SP-", `
                    "/CLOSEAPPLICATIONS", `
                    "/RESTARTAPPLICATIONS", `
                    "/o:PathOption=CmdTools", `
                    "/o:BashTerminalOption=ConHost", `
                    "/o:EnableSymlinks=Enabled", `
                    "/COMPONENTS=gitlfs")

    $process = Start-Process msiexec -ArgumentList $ArgumentList -Wait -PassThru
    if ($process.exitcode -ne 0) {
        throw "Quiet install failed, please rerun install without -Quiet switch or ensure you have administrator rights"
    }
    
    $systemPath = [Environment]::GetEnvironmentVariable('PATH', [System.EnvironmentVariableTarget]::Machine)
    $systemPath += ';' + "C:\Program Files\Git\${majorVersion}"
    [Environment]::SetEnvironmentVariable("PATH", $systemPath, [System.EnvironmentVariableTarget]::Machine)

} finally {
    Remove-Item -Path $tempDir -Recurse -Force -ErrorAction SilentlyContinue
}

# about_update_notifications
# While the update check happens during the first session in a given 24-hour period, for performance reasons,
# the notification will only be shown on the start of subsequent sessions.
# Also for performance reasons, the check will not start until at least 3 seconds after the session begins.
[System.Environment]::SetEnvironmentVariable("POWERSHELL_UPDATECHECK", "Off", [System.EnvironmentVariableTarget]::Machine)