我正在使用 PowerShell 5.1,我正在尝试确定为什么Write-Information
消息不会显示在由创建的脚本日志中,Start-Transcript
除非我设置$InformationPreference
为SilentlyContinue
. 我想在控制台中显示消息并将它们写入日志文件。
然后我决定创建这个脚本来测试什么时候写的。请参阅下面的首选项部分Testing explicit behavior with transcripts -------------
Clear-Host
$ErrorActionPreference = "Stop"
try {
Write-Host "Starting transcript"
Start-Transcript -Force -Path "$PSScriptRoot\default.txt"
<#
In PowerShell 5.1 the default behavior is as follows:
$DebugPreference = SilentlyContinue
$InformationPreference = SilentlyContinue
$ProgressPreference = Continue
$VerbosePreference = SilentlyContinue
See the following for more information:
https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_preference_variables?view=powershell-5.1
#>
# I am not testing Write-Output as I am not worried about programmatic/pipeline stuff, just contextual messages for end-users or logging
Write-Host "`nTesting default behavior with transcripts --------------------------------`n"
# Setting these just in case I launch this script in a session where a previous script might have modified the preference variables
$DebugPreference = "SilentlyContinue"
$InformationPreference = "SilentlyContinue"
$ProgressPreference = "Continue"
$VerbosePreference = "SilentlyContinue"
Write-Host "Calling Write-Host"
Write-Debug "Calling Write-Debug"
Write-Error "Calling Write-Error" -ErrorAction "Continue"
Write-Information "Calling Write-Information"
Write-Progress "Calling Write-Progress"
Write-Verbose "Calling Write-Verbose"
Stop-Transcript
Start-Transcript -Force -Path "$PSScriptRoot\everything_continue.txt"
Write-Host "`nTesting explicit behavior with transcripts --------------------------------`n"
# Turn everything on
$DebugPreference = "Continue"
$InformationPreference = "Continue" # Setting this to SilentlyContinue makes it show up in the log but not the console. Setting this to 'Continue' makes it show up in the console but not the log.
$ProgressPreference = "Continue"
$VerbosePreference = "Continue"
Write-Host "Calling Write-Host"
Write-Debug "Calling Write-Debug"
Write-Error "Calling Write-Error" -ErrorAction "Continue"
Write-Information "Calling Write-Information"
Write-Progress "Calling Write-Progress"
Write-Verbose "Calling Write-Verbose"
Stop-Transcript
Write-Host "`nResults -------------------------------------------------------------------`n"
# See what actually gets captured and written by the transcriber
$messageTypes = @("Write-Debug", "Write-Error", "Write-Host", "Write-Information", "Write-Verbose")
Write-Host "Default" -ForegroundColor Cyan
$lines = Get-Content "$PSScriptRoot\default.txt"
foreach ($message in $messageTypes) {
if ($lines -like "*Calling $message*") {
Write-Host " $message PRESENT" -ForegroundColor Green
}
else {
Write-Host " $message MISSING" -ForegroundColor Red
}
}
Write-Host "Everything Continue" -ForegroundColor Cyan
$lines = Get-Content "$PSScriptRoot\everything_continue.txt"
foreach ($message in $messageTypes) {
if ($lines -like "*Calling $message*") {
Write-Host " $message PRESENT" -ForegroundColor Green
}
else {
Write-Host " $message MISSING" -ForegroundColor Red
}
}
}
catch {
Write-Host "----------------------------------------------------------------------------------------------------"
Write-Host $_.Exception
Write-Host $_.ScriptStackTrace
Write-Host "----------------------------------------------------------------------------------------------------"
try { Stop-Transcript } catch { }
throw $_
}