33、PowerShell 脚本执行环境信息获取与管理

PowerShell 脚本执行环境信息获取与管理

1. 脚本性能分析相关代码逻辑

在脚本执行过程中，有时需要对脚本的性能进行分析，下面的代码展示了如何处理脚本中的调试信息，以跟踪函数的调用和执行情况。

## If so, store that we're in that function, and push it onto
## the callstack.
if($line -match 'write-debug "ENTER (.*)"')
{
    $currentFunction = $matches[1]
    $callstack.Push($currentFunction)
}
## Check if we're exiting a monitor block
## If so, clear the "current function" from the callstack,
## and store the new "current function" onto the callstack.
elseif($line -match 'write-debug "EXIT"')
{
    [void] $callstack.Pop()
    $currentFunction = $callstack.Peek()
}
## Otherwise, this is just a line with some code.
## Add the line number as a member of the "current function"
else
{
    if($line -match 'DEBUG:[ \t