安装Chocolatey软件包时尝试/捕获PowerShell

Question

我一直在尝试创建用于在PowerShell中安装Chocolatey软件包的脚本。 这工作正常，但我想解析Chocolatey的输出。 我在想什么

$package = "something I want"
try         
{
    $installCommand = "choco install $package"
    iex $installCommand -ErrorAction Stop -WarningAction Stop
}
catch
{
    #Print error messages, i.e. $_.Exception.Message
}

我对PowerShell还是很陌生，并且试图弄清楚如何使用try / catch。 我试过了

try {
    $command = "choco install asdasdasdasdasdad"
    iex $command -ErrorAction Stop -WarningAction Stop
}
catch  {
    $message = $_.Exception.Message
    Write-Host $message
}

但这给了我

Installing the following packages: asdasdasdasdasdad
By installing you accept licenses for the packages.
asdasdasdasdasdad not installed. The package was not found with the source(s) listed. 
If you specified a particular version and are receiving this message, it is possible that the package name exists but the version does not.
Version: ""  Source(s): "https://chocolatey.org/api/v2/"

Chocolatey installed 0/1 package(s). 1 package(s) failed. 
See the log for details (C:\ProgramData\chocolatey\logs\chocolatey.log).
Failures:
  - asdasdasdasdasdad

有小费吗？ 提前谢谢！

---

我找到了一个对我有帮助的代码示例：

function testInstall
{
    Param (
        [string] $package
    )

    Begin
    {
        Write-Host "Now in Begin.. Going on!"
    }
    Process
    {
        Write-Host "Starting Process"
        Write-Host ""

        $chocoCommand = "choco install $package"
        iex $chocoCommand

        Write-Host ""
        Write-Host "Ending Process"
    }

    End
    {
        Write-Host "Now in End"
    }



}

Function Test-Demo
{
    Param ($Param1)
    Begin {
        write-host "Starting"
    }
    Process {
        if($_ -eq " Use --force to reinstall, specify a version to install, or try upgrade.")
        {
         $forceDetected = $true;
        }
        write-host $_
    }
    End {

        if($forceDetected -eq $true)
        {
            Write-Warning "Force detected"
            Write-Warning "Do you want to re-run the installer with --force?"
            # Promt the user Y/N option and re-run testInstall -package $package --force

        }
        write-host "Ending"
    }
}

testInstall -package ruby | Test-Demo Sample

这将使我有机会询问用户是否希望使用--force参数重新运行脚本。 唯一的问题是choco的输出失去了颜色。 有什么建议么？

Answer 1

需要Windows Management Framework 5：

register-packagesource -Name chocolatey -Provider PSModule -Trusted -Location http://chocolatey.org/api/v2/ -Verbose

我在这里找到了这个： https : //serverfault.com/questions/633576/how-do-you-manually-set-powershells-oneget-repository-source-to-chocolatey

然后，您应该可以运行类似的内容并获得详细的输出：

Get-Package Nodejs | Install-Package -Verbose

Answer 2

经过一些测试，我做到了。 它在开发中，但是它解析输出，并且我可以在最后打印安装摘要（或最终做的任何事情）。

随时发表评论。

https://github.com/bpjohannessen/ChocoPower

（我将在明天将此标记为答案）