windows - Powershell 配置文件

Question

所以我有这个 PowerShell 配置文件，git 分支显示得很好，问题是当我在每个文件夹位置时显示PS在末尾：

这是我的脚本（我真的不知道我是否在这里遗漏了一些东西，也许是else路径）：

function prompt {
  $p = Split-Path -leaf -path (Get-Location)
  $user = $env:UserName
  $host.UI.RawUI.WindowTitle = "\" + $p + ">"
  $host.UI.RawUI.ForegroundColor = "Blue"

  if (Test-Path .git) {
    $p = Split-Path -leaf -path (Get-Location)
    git branch | ForEach-Object {
      if ($_ -match "^\*(.*)") {
        $branch = $matches[1] + " - "
        Write-Host -NoNewLine $user -ForegroundColor Magenta
        Write-Host -NoNewLine "@\"
        Write-Host -NoNewLine $p -ForegroundColor Yellow
        Write-Host -NoNewLine " - " -ForegroundColor DarkGreen
        Write-Host -NoNewLine $branch -ForegroundColor DarkGreen
      }
    }
  }
  else {
    Write-Host -NoNewLine $user -ForegroundColor Magenta
    Write-Host -NoNewLine "@\"
    Write-Host -NoNewLine $p -ForegroundColor Yellow
    Write-Host -NoNewLine " "
  }
}

Answer 1

因为您的自定义prompt函数不产生（非空）成功流输出（请参阅about_Redirection），PowerShell 推断您根本没有定义此函数，并打印其默认提示字符串，PS>（在您的情况下，在调用打印之后Write-Host） .

• 此要求也在概念about_Prompts主题中进行了说明。

为避免此问题，请至少向成功输出流发送一个单字符字符串（而不是使用Write-Host，默认情况下直接打印到主机）。

例如（见倒数第二行）：

function prompt {
  $p = Split-Path -leaf -path (Get-Location)
  $user = $env:UserName
  $host.UI.RawUI.WindowTitle = "\" + $p + ">"
  $host.UI.RawUI.ForegroundColor = "Blue"

  if (Test-Path .git) {
    $p = Split-Path -leaf -path (Get-Location)
    git branch | ForEach-Object {
      if ($_ -match "^\*(.*)") {
        $branch = $matches[1] + " - "
        Write-Host -NoNewLine $user -ForegroundColor Magenta
        Write-Host -NoNewLine "@\"
        Write-Host -NoNewLine $p -ForegroundColor Yellow
        Write-Host -NoNewLine " - " -ForegroundColor DarkGreen
        Write-Host -NoNewLine $branch -ForegroundColor DarkGreen
      }
    }
  }
  else {
    Write-Host -NoNewLine $user -ForegroundColor Magenta
    Write-Host -NoNewLine "@\"
    Write-Host -NoNewLine $p -ForegroundColor Yellow
  }
  '> ' # !! Output to the success output stream to prevent default prompt.
}