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

问题描述

我正在用 PowerShell 替换部分 .bat 脚本.批处理文件的配置是通过 set 适当的环境变量的文件完成的.我正在寻找一种方法将这些变量值加载到 .ps1 脚本中，而无需修改 .bat 文件(因为它们也用于其他地方.

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，变量就可用了.我已经尝试了点源(.filename.bat)和调用(&filename.bat)来自PowerShell的配置文件，这些都没有使变量可见.尝试使用 $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

我会解析它们(只需跳过所有不以 set 开头的行并用第一个 = 分割它们 字符.您可以通过小型 C# cmdlet 或直接使用小型 PowerShell 脚本来完成:

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]
    }
}}

我有这个代码，我确定它来自某个地方，但信用已经丢失，我想它来自 PowerInvoke-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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