具有异步功能的任务计划程序中的 PowerShell 脚本

Question

我有一个相当大的 PowerShell 脚本，我已将其分成两个单独的脚本。第一个脚本以调用异步函数结束，然后退出。

该函数检查在前面的脚本中生成的电子邮件导出的状态，执行一个 WHILE 循环，它每六十秒调用一次 Google 以查看导出是否准备就绪。导出准备就绪后，它会更新几个 SQL 数据库，我的第二个脚本知道接管。

当我在 shell/控制台中运行“第一个脚本”时，这 100% 的时间都有效。但我已经开始注意到，当我的计划任务在任务计划程序中被触发时……什么也没有发生。我有大量的日志记录，所以我知道参数正在被发送到异步函数，但它似乎只是弹出而不是继续循环遍历 WHILE 并每六十秒检查一次。

我觉得我已经在这里进行了谷歌搜索的尽职调查，但是......我是否缺少任务计划程序作业以确保包含 WHILE 循环的函数能够正常运行？

在下方编辑

为了更好地解释我在做什么，我将包括从我的函数中剥离的代码以及从下面的主脚本调用函数。

首先，调用“script_01”末尾的函数。

# Let's send the Google Vault export information over to our function.
        Try {
            $VaultParameters = @{
                employee_name = "$employee_name"
                export_name = "$export_name"
                sql_id = "$sql_id"
                vault_status_id = "$vault_status_id"
            }
            VaultExport @VaultParameters

            $LoggingParameters = @{
                logfile = "C:\script_logs\log.log"
                log = "INFO: Sent the Google Vault export information over to our async function."
            }
            EventLogging @LoggingParameters
        } Catch {
            $LoggingParameters = @{
                logfile = "C:\script_logs\log.log"
                log = "ERROR: Could not send the Google Vault export information over to our async function.`n$_"
            }
            EventLogging @LoggingParameters
        }

现在是功能本身。它很大...

function VaultExport {
    param (
        [cmdletbinding()]
        [parameter()]
        [string]$employee_name,
        [parameter()]
        [string]$export_name,
        [parameter()]
        [string]$sql_id,
        [parameter()]
        [string]$vault_status_id
    )

    $scriptBlock = {
        param ($employee_name,$export_name,$sql_id,$vault_status_id)
        Import-Module SimplySQL
        $logfile = "C:\script_logs\log.log"
        $now = (Get-Date).tostring("MM-dd-yyyy hh:mm:ss")

        # Let's define our MySQL database credentials for later use.
        # DEFINING SQL CREDS HERE

        # Let's generate secure credentials for our MySQL 'terms' db.
        # GENERATING SECURE CREDS HERE

        # And now we'll connect to our SQL db...
        # CONNECTING TO SQL HERE

        $vault_ready = "no"
        Add-Content $logfile "$now INFO: Beginning the WHILE loop while $export_name completes..."
        while ($vault_ready -eq "no") {
            $vault_status = gam info export "Email Exports" "$export_name"
            $vault_status = $vault_status -Match "COMPLETED"
            $vault_status = $vault_status -split(": ")
            $vault_status = $vault_status[1]
            if ($vault_status -eq "COMPLETED") {
                $vault_ready = "yes"
                $completed = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
                Invoke-SqlUpdate -Query "UPDATE ``table`` SET ``vault_status`` = '$vault_status', ``vault_completed`` = '$completed' WHERE ``id`` = '$vault_status_id'"
                Invoke-SqlUpdate -Query "UPDATE ``table`` SET ``vault_status`` = '1' WHERE ``id`` = '$sql_id'"
                $now = (Get-Date).tostring("MM-dd-yyyy hh:mm:ss")
                Add-Content $logfile "$now INFO: $export_name is ready to download. Updated vault_status in our dbs."
            } else {
                $vault_status = gam info export "Email Exports" "$export_name"
                $vault_status = $vault_status -Match "IN_PROGRESS"
                $vault_status = $vault_status -split(": ")
                $vault_status = $vault_status[1]
                Invoke-SqlUpdate -Query "UPDATE ``table`` SET ``vault_status`` = '$vault_status' WHERE ``id`` = '$vault_status_id'"
                $now = (Get-Date).tostring("MM-dd-yyyy hh:mm:ss")
                Add-Content $logfile "$now INFO: $export_name is not yet ready: ($vault_status). Checking again in sixty seconds."
                Start-Sleep 60
            }
        }
    }
    Start-Job -ScriptBlock $scriptBlock -ArgumentList @($employee_name,$export_name,$sql_id,$vault_status_id)
}
exit

Answer 1

我不确定为什么你不让任务每 30 秒执行一次，而是让一个进程无限期运行并使用它自己的计时器

您为 WHILE 语句设置的条件得到满足，这就是循环不继续的原因。 将条件更改为永远不会满足的条件，问题就会消失，即

$Value1 = 0
WHILE($Value1 -ne 1){
#do things, never updating the $value1 variable
}