PowerShell从脚本运行脚本：调用失败时调用失败

我有

/main.ps1

调用

/worker1.ps1

和

worker2.ps1

，其中包含参数和main.ps1中的行：

# other stuff in main script
$args = @()
$args += ("-PARAM1", "$VAR1")
$args += ("-PARAM2", "$VAR2")
$worker1 = "./workers/worker1.ps1"
Invoke-Expression "$worker1 $args" -ErrorAction Stop
# other stuff in main script
$worker2 = "./workers/worker2.ps1"
Invoke-Expression "$worker2 $args" -ErrorAction Stop

如果

worker1.ps1

失败，则它有

exit 1

行，
问题是，即使

worker1.ps1

失败

worker2.ps1

也会被

main.ps1

---

我怎样才能避免这种情况，并在一个被调用的脚本失败时立即使主脚本失败

因为我没有你的程序要处理，所以我创建了两个程序来复制我认为你在说的内容，例如Worker1.ps1在失败时返回1

主程序如下所示：

$TFArgs = @{ReturnCD = 0
            CallNumber = 1}


$RVal = & .\test\Test-CallFail.ps1 @TFArgs 
$RVal
Write-Host " "

If ($RVal -ne 1) {
       $TFArgs = @{ReturnCD = 1
                   CallNumber = 2}
  $RVal = & .\test\Test-CallFail.ps1 @TFArgs
  $Rval
}  

Param (
  [INt] $ReturnCd,
  [Int] $CallNumber
)

Write-Host "Call Number: $CallNumber"
"$ReturnCd"

Call Number: 1
0

Call Number: 2
1

Call Number: 1
1

被调用的程序如下所示：

$TFArgs = @{ReturnCD = 0
            CallNumber = 1}


$RVal = & .\test\Test-CallFail.ps1 @TFArgs 
$RVal
Write-Host " "

If ($RVal -ne 1) {
       $TFArgs = @{ReturnCD = 1
                   CallNumber = 2}
  $RVal = & .\test\Test-CallFail.ps1 @TFArgs
  $Rval
}  

Param (
  [INt] $ReturnCd,
  [Int] $CallNumber
)

Write-Host "Call Number: $CallNumber"
"$ReturnCd"

Call Number: 1
0

Call Number: 2
1

Call Number: 1
1

因此，如果第一次调用的ReturnCD为0。i、 e.成功输出如下所示：

$TFArgs = @{ReturnCD = 0
            CallNumber = 1}


$RVal = & .\test\Test-CallFail.ps1 @TFArgs 
$RVal
Write-Host " "

If ($RVal -ne 1) {
       $TFArgs = @{ReturnCD = 1
                   CallNumber = 2}
  $RVal = & .\test\Test-CallFail.ps1 @TFArgs
  $Rval
}  

Param (
  [INt] $ReturnCd,
  [Int] $CallNumber
)

Write-Host "Call Number: $CallNumber"
"$ReturnCd"

Call Number: 1
0

Call Number: 2
1

Call Number: 1
1

如果您将ReturnCD更改为1，即失败，则显示如下：

$TFArgs = @{ReturnCD = 0
            CallNumber = 1}


$RVal = & .\test\Test-CallFail.ps1 @TFArgs 
$RVal
Write-Host " "

If ($RVal -ne 1) {
       $TFArgs = @{ReturnCD = 1
                   CallNumber = 2}
  $RVal = & .\test\Test-CallFail.ps1 @TFArgs
  $Rval
}  

Param (
  [INt] $ReturnCd,
  [Int] $CallNumber
)

Write-Host "Call Number: $CallNumber"
"$ReturnCd"

Call Number: 1
0

Call Number: 2
1

Call Number: 1
1

没有打第二个电话

HTH

• 根据建议，避免将

  $args

  用作自定义变量，因为它是所谓的由PowerShell本身管理的变量

• )；当然

• 在数据结构中使用数组而不是数组来表示参数，然后使用来传递它

• 如果脚本使用带有非零参数的

  exit

  表示失败，请查询自动

  $LASTEXITCODE

  变量以推断失败

总而言之：

# other stuff in main script

# Define the arguments as a *hashtable*.
$htArgs = @{
  PARAM1 = $VAR1
  PARAM2 = $VAR2
}

foreach ($worker in './workers/worker1.ps1', './workers/worker2.ps1') {
  & $worker @htArgs # Note the @ sigil for splatting
  if ($LASTEXITCODE) { Throw "$worker signaled failure via exit code $LASTEXITCODE" } 
}

---

$Result=调用表达式“$worker1$args”-错误操作停止

主脚本中的其他内容 如果（$结果） { $worker2=“./workers/worker2.ps1” 调用表达式“$worker2$args”-ErrorAction Stop

---

}

经过几次尝试，我找到了一个简单的方法：

# other stuff in main script
& ./workers/worker1.ps1 -PARAM1 "$VAR1" -PARAM2 "$VAR2"
if ($LASTEXITCODE -ne 0) {
    Write-Output "worker1 has failed"
    exit 1
} else {
    Write-Output "worker1 has completed"
}
# other stuff in main script
& ./workers/worker2.ps1

---

首先，不要使用自定义变量名

$args

，因为这是一个问题，这是否回答了您的问题？OP已指示脚本通过退出1发出故障信号，而不是通过其输出。总的来说：请。