如何将.bat文件中的变量源到PowerShell脚本中? [英] How can I source variables from a .bat file into a PowerShell script?

问题描述

我正在用PowerShell替换.bat脚本的某些部分.批处理文件的配置是通过set适当环境变量的文件完成的.我正在寻找一种方法，可以将这些变量值加载到.ps1脚本中，而无需修改.bat文件(因为它们也在其他地方使用.

I'm replacing parts of a .bat script with PowerShell. Configuration for the batch files is done via files that set appropriate environment variables. I'm looking for a way to load those variable values into the .ps1 script, without modifying the .bat files (as they are also used in other places.

示例.bat如下所示:

set VAR_ONE=some_value
set VAR_TWO=/other-value

在批处理脚本中，我只需CALL配置文件，变量就可以使用了.我已经尝试了从PowerShell进行点源(. filename.bat)和调用(& filename.bat)配置文件，但都没有使变量可见.尝试同时使用$VAR_ONE和$env:VAR_ONE语法访问它们.

In a batch script, I'd just CALL the configuration file and the variables would be available. I've tried both dot-sourcing (. filename.bat) and calling (& filename.bat) the configuration files from PowerShell, neither of those makes the variables visible. Tried accessing them with both with $VAR_ONE and $env:VAR_ONE syntax.

在不修改磁盘上格式的情况下加载此类配置文件的好方法是什么?

What would be a good way to load such configuration file without modifying it's format on disk?

推荐答案

我将解析它们(只是跳过所有不以set开头的行，并以第一个=字符进行拆分.可以做到这一点.从小型C#cmdlet或直接使用小型PowerShell脚本:

I'd parse them (just skip all lines that don't start with set and split them with first = character. You can do it from o small C# cmdlet or directly with a small PowerShell script:

CMD /c "batchFile.bat && set" | .{process{
    if ($_ -match '^([^=]+)=(.*)') {
        Set-Variable $matches[1] $matches[2]
    }
}}

我有这段代码，并且我确定它来自某个地方，但是功劳已经丢失了，我想它来自电源用于Invoke-Batch脚本的Shell社区扩展.

I have this code and I'm sure it comes from somewhere but credits have been lost, I suppose it comes from Power Shell Community Extensions for an Invoke-Batch script.

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