powershell

# DIYship {{{

$ENV:VIRTUAL_ENV_DISABLE_PROMPT = 1

$ENV:DIYSHIP_SHELL = "powershell"

function global:prompt {

	function Invoke-Native {
		param($Executable, $Arguments)
		$startInfo = [System.Diagnostics.ProcessStartInfo]::new($Executable);
		$startInfo.StandardOutputEncoding = [System.Text.Encoding]::UTF8;
		$startInfo.RedirectStandardOutput = $true;
		$startInfo.RedirectStandardError = $true;
		$startInfo.CreateNoWindow = $true;
		$startInfo.UseShellExecute = $false;
		if ($startInfo.ArgumentList.Add) {
			foreach ($arg in $Arguments) {
				$startInfo.ArgumentList.Add($arg);
			}
		}
		else {
			$escaped = $Arguments | ForEach-Object {
				$s = $_ -Replace '(\+)"','$1$1"';
				$s = $s -Replace '(\+)$','$1$1';
				$s = $s -Replace '"','\"';
				"`"$s`""
			}
			$startInfo.Arguments = $escaped -Join ' ';
		}
		$process = [System.Diagnostics.Process]::Start($startInfo)

		$stderr = $process.StandardError.ReadToEnd().Trim()
		if ($stderr -ne '') {
			$host.ui.WriteErrorLine($stderr)
		}

		$process.StandardOutput.ReadToEnd();
	}

	$origDollarQuestion = $global:?
	$origLastExitCode = $global:LASTEXITCODE

	$ENV:DIYSHIP_JOBS = @(Get-Job | Where-Object { $_.State -eq 'Running' }).Count

	$ENV:DIYSHIP_STATUS = 0
	if ($lastCmd = Get-History -Count 1) {
		if (-not $origDollarQuestion) {
			$lastCmdletError = try { $error[0] |  Where-Object { $_ -ne $null } | Select-Object -ExpandProperty InvocationInfo } catch { $null }
			$ENV:DIYSHIP_STATUS = if ($null -ne $lastCmdletError -and $lastCmd.CommandLine -eq $lastCmdletError.Line) { 1 } else { $origLastExitCode }
		}
		$ENV:DIYSHIP_DURATION = [math]::Round(($lastCmd.EndExecutionTime - $lastCmd.StartExecutionTime).TotalMilliseconds)
	}

	Invoke-Native -Executable $DIYSHIP_COMMAND_LEFT

	$global:LASTEXITCODE = $origLastExitCode

	if ($global:? -ne $origDollarQuestion) {
		if ($origDollarQuestion) {
			1+1
		} else {
			Write-Error '' -ErrorAction 'Ignore'
		}
	}

}

# }}}