我希望在等待静默安装时异步运行进度条（显示已用时间/估计时间）。例如，
socket.on("getPhoto") { data,ack in
if let buffer = data[0] as? NSData {
let img = UIImage(data: buffer)
}
}
RunWithProgressBar "cmd /c """" /Wait ""Setup.exe""" $(New-Timespan -Minutes 5)
虽然上述实现按预期运行，但只要## Functions
function global:BottleOfBeer {
$beer = $args[0]
if ($beer -eq 1) {
echo "$beer beer on the wall.";
} elseif ($beer -eq 0) {
echo "No beer left on the wall!";
} else {
echo "$beer beers left on the wall.";
}
sleep 1
}
function global:BeersOnTheWall {
$NumBeers = $args[0]
for ($i=$NumBeers; $i -ge 0; $i--) {
BottleOfBeer $i
}
}
function global:Install {
cmd /c @"
"AutoHotkey112306_Install.exe" /S /D="%cd%"
"@
}
function global:Uninstall {
cmd /c start "" /wait "Installer.ahk" /Uninstall
}
####START Progress Bar Stuff
function global:DisplayProgress {
$display = $args[0]
Write-Progress -Activity "Running..." -Status "$display"
}
function global:FormatDisplay {
$StartTime = $args[0]
$RunningTime = ($args[1]).Elapsed
$EstimatedTime = $args[2]
$RunningTimeDisplay = $([string]::Format("{0:d2}:{1:d2}:{2:d2}",
$RunningTime.hours,
$RunningTime.minutes,
$RunningTime.seconds))
$EstimatedEnd = $StartTime + $EstimatedTime
return $([string]::Format("(Start: {0}) (Elapsed/Estimated: {1}/{2}) (EstimatedEnd: {3})",
$StartTime.ToShortTimeString(),
$RunningTimeDisplay,
$EstimatedTime,
$EstimatedEnd.ToShortTimeString()))
}
function global:TearDownProgressBar {
$job = $args[0]
$event = $args[1]
$job,$event | Stop-Job -PassThru | Remove-Job #stop the job and event listener
Write-Progress -Activity "Working..." -Completed -Status "All done."
}
function RunWithProgressBar {
$Payload = $args[0]
$EstimatedTime = $args[1]
$global:StartTime = Get-Date
$global:RunningTime = [System.Diagnostics.Stopwatch]::StartNew()
$global:EstimatedTime = $EstimatedTime
$progressTask = {
while($true) {
Register-EngineEvent -SourceIdentifier MyNewMessage -Forward
$null = New-Event -SourceIdentifier MyNewMessage -MessageData "Pingback from job."
Start-Sleep -Seconds 1
}
}
$job = Start-Job -ScriptBlock $progressTask
$event = Register-EngineEvent -SourceIdentifier MyNewMessage -Action {
DisplayProgress $(FormatDisplay $global:StartTime $global:RunningTime $global:EstimatedTime)
}
try {
sleep 1
Invoke-Expression $Payload
} finally {
TearDownProgressBar $job $event
}
}
####END Progress Bar Stuff
## MAIN
RunWithProgressBar "BeersOnTheWall 2" $(New-Timespan -Seconds 3)
RunWithProgressBar "Install" $(New-Timespan -Seconds 30)
RunWithProgressBar "Uninstall" $(New-Timespan -Seconds 5)
RunWithProgressBar "BeersOnTheWall 2" $(New-Timespan -Seconds 3)
的有效负载参数是安装，更新进度条的事件就会停止触发。
如何修改我当前的实现以每秒更新进度条，即使在执行安装时也是如此？
答案 0 :(得分：2)
我觉得你正试图在 $progressTask = {
while($true) {
Register-EngineEvent -SourceIdentifier MyNewMessage -Forward
$null = New-Event -SourceIdentifier MyNewMessage -MessageData "Pingback from job."
Start-Sleep -Seconds 1
}
}
$job = Start-Job -ScriptBlock $progressTask
$event = Register-EngineEvent -SourceIdentifier MyNewMessage -Action {
DisplayProgress $(FormatDisplay $global:StartTime $global:RunningTime $global:EstimatedTime)
}
函数中重新发明方向：
$timer = new-object timers.timer
$action = {DisplayProgress $(FormatDisplay $global:StartTime $global:RunningTime $global:EstimatedTime)}
$timer.Interval = 1000
Register-ObjectEvent -InputObject $timer -EventName elapsed –SourceIdentifier thetimer -Action $action | out-null
$timer.Start()
这基本上是计时器，可以重构：
scriptblock但是，要解决您的问题，您可以在作业中执行任务并等到他们完成。
不要将这些功能公开，而是考虑在 $initializationScriptBlock = {
$functions = @{
Install = {
cmd /c '"AutoHotkey112306_Install.exe" /S /D="%cd%"'
}
BottleOfBeer = {
$beer = $args[0]
if ($beer -eq 1) {
echo "$beer beer on the wall.";
} elseif ($beer -eq 0) {
echo "No beer left on the wall!";
} else {
echo "$beer beers left on the wall.";
}
sleep 1
}
BeersOnTheWall = {
$NumBeers = $args[0]
for ($i=$NumBeers; $i -ge 0; $i--)
{
BottleOfBeer $i
}
}
Uninstall = {
cmd /c start "" /wait "Installer.ahk" /Uninstall
}
}
}
中定义它们：
Invoke-Expression $Payload现在，通过initializationScriptBlock和实际函数$functionToExecute作为scriptblock来执行$executingJob = start-Job -InitializationScript $initializationScriptBlock -ScriptBlock $functionToExecute
while ((Get-job $executingJob.Id).State -eq 'Running')
{
sleep 1;
}
，您RunWithProgressBar开始一项新工作。
PowerShell您的function RunWithProgressBar
{
Param(
[Parameter(Mandatory=$true, Position=0)]
[scriptblock]$functionToExecute,
[Parameter(Mandatory=$true, Position=1)]
[timespan]$EstimatedTime
)
....
}
函数现在正在使用initializationScriptBlock - 就像函数定义一样：
. $initializationScriptBlock
请考虑更改可读性的其余脚本。
要使用进度条调用函数，首先必须加载RunWithProgressBar $functions.BottleOfBeer (New-Timespan -Seconds 3)
RunWithProgressBar $functions.Install (New-Timespan -Seconds 30)
到当前的运行空间：
## Functions
$initializationScriptBlock = {
$functions = @{
Install = {
Sleep 5
<#cmd /c @"
"AutoHotkey112306_Install.exe" /S /D="%cd%"
"@#>
}
BottleOfBeer = {
$beer = $args[0]
if ($beer -eq 1) {
echo "$beer beer on the wall.";
} elseif ($beer -eq 0) {
echo "No beer left on the wall!";
} else {
echo "$beer beers left on the wall.";
}
sleep 1
}
BeersOnTheWall = {
$NumBeers = $args[0]
for ($i=$NumBeers; $i -ge 0; $i--)
{
BottleOfBeer $i
}
}
Uninstall = {
cmd /c start "" /wait "Installer.ahk" /Uninstall
}
}
}
####START Progress Bar Stuff
function global:DisplayProgress {
$display = $args[0]
Write-Progress -Activity "Running..." -Status "$display"
}
function global:FormatDisplay {
$StartTime = $args[0]
$RunningTime = ($args[1]).Elapsed
$EstimatedTime = $args[2]
$RunningTimeDisplay = $([string]::Format("{0:d2}:{1:d2}:{2:d2}",
$RunningTime.hours,
$RunningTime.minutes,
$RunningTime.seconds))
$EstimatedEnd = $StartTime + $EstimatedTime
return $([string]::Format("(Start: {0}) (Elapsed/Estimated: {1}/{2}) (EstimatedEnd: {3})",
$StartTime.ToShortTimeString(),
$RunningTimeDisplay,
$EstimatedTime,
$EstimatedEnd.ToShortTimeString()))
}
function RunWithProgressBar
{
Param(
[Parameter(Mandatory=$true, Position=0)]
[scriptblock]$functionToExecute,
[Parameter(Mandatory=$true, Position=1)]
[timespan]$EstimatedTime
)
$global:StartTime = Get-Date
$global:RunningTime = [System.Diagnostics.Stopwatch]::StartNew()
$global:EstimatedTime = $EstimatedTime
$timer = new-object timers.timer
$action = {DisplayProgress $(FormatDisplay $global:StartTime $global:RunningTime $global:EstimatedTime)}
$timer.Interval = 1000
Register-ObjectEvent -InputObject $timer -EventName elapsed –SourceIdentifier thetimer -Action $action | out-null
$timer.Start()
try {
$executingJob = start-Job -InitializationScript $initializationScriptBlock -ScriptBlock $functionToExecute
while ((Get-job $executingJob.Id).State -eq 'Running')
{
sleep 1;
}
} finally {
$timer.stop()
Unregister-Event thetimer
}
}
####END Progress Bar Stuff
## MAIN
. $initializationScriptBlock
RunWithProgressBar $functions.BottleOfBeer (New-Timespan -Seconds 3)
RunWithProgressBar $functions.Install (New-Timespan -Seconds 30)
RunWithProgressBar $functions.Uninstall (New-Timespan -Seconds 5)
RunWithProgressBar $functions.BeersOnTheWall (New-Timespan -Seconds 3)
现在您可以调用这样的函数：
$executingJob = start-Job -InitializationScript $initializationScriptBlock -ScriptBlock $functionToExecute
while ((Get-job $executingJob.Id).State -eq 'Running')
{
Receive-Job $executingJob.Id
sleep 1;
}
Receive-Job $executingJob.Id
您的整个脚本现在看起来像这样：
$initializationScriptBlock你的脚本现在应该可以工作，即使还有很多重构 e。 G。函数名称，范围
回答您的评论：
1。）您可以在循环中使用Receive-Job来检索输出：
. $initializationScriptBlock
2）。 使用：
执行& $functions.BottleOfBeer
后
ng-repeat您可以使用任何功能：
<uib-accordion>答案 1 :(得分：1)
虽然所提供的解决方案赢得了赏金，但这不是我最终做的事情。这是RunWithProgressBar（）的最终版本：
param (
[alias("IM")]
[bool]$IgnoreMain = $false
)
function RunAsBAT([string]$commands) {
# Write commands to bat file
$tempFile = $global:scriptDir + '\TemporaryBatFile.bat'
$commands = "@echo off `n" + $commands
Out-File -InputObject $commands -FilePath $tempFile -Encoding ascii
# Wait for bat file to run
& $tempFile
# Delete bat file
Remove-Item -Path $tempFile
}
function DisplayProgress([string]$display) {
Write-Progress -Activity "Running..." -Status "$display"
}
function FormatDisplay([System.DateTime]$StartTime, [System.TimeSpan]$RunningTime, [System.TimeSpan]$EstimatedTime) {
$RunningTimeDisplay = $([string]::Format("{0:d2}:{1:d2}:{2:d2}",
$RunningTime.hours,
$RunningTime.minutes,
$RunningTime.seconds))
$EstimatedEnd = $StartTime + $EstimatedTime
return $([string]::Format("(Start: {0}) (Elapsed/Estimated: {1}/{2}) (EstimatedEnd: {3})",
$StartTime.ToShortTimeString(),
$RunningTimeDisplay,
$EstimatedTime,
$EstimatedEnd.ToShortTimeString()))
}
function RunWithProgressBar([scriptblock]$payload, [System.TimeSpan]$EstimatedTime) {
$global:StartTime = Get-Date
$global:RunningTime = [System.Diagnostics.Stopwatch]::StartNew()
$global:EstimatedTime = $EstimatedTime
try {
$logFile = $global:scriptDir + '\TemporaryLogFile.txt'
$StartInfo = New-Object System.Diagnostics.ProcessStartInfo -Property @{
FileName = 'Powershell'
# load this script but don't run MAIN (to expose functions/variables);
# run the payload (and also log to file);
# if error, pause (so the window stays open to display the error)
Arguments = ". $global:scriptPath -IM 1; & $payload | Tee-Object -file $logFile;" + ' if ( $LastExitCode -ne 0 ) { cmd /c pause }'
UseShellExecute = $true
}
$Process = New-Object System.Diagnostics.Process
$Process.StartInfo = $StartInfo
[void]$Process.Start()
do
{
DisplayProgress $(FormatDisplay $global:StartTime ($global:RunningTime).Elapsed $global:EstimatedTime)
Start-Sleep -Seconds 1
}
while (!$Process.HasExited)
}
finally {
if (Test-Path $logFile) {
Get-Content -Path $logFile
Remove-Item -Path $logFile
} else {
Write-Host "No output was logged..."
}
Write-Progress -Activity "Working..." -Completed -Status "All done."
}
}
function TestBlockingCall {
RunAsBAT(@"
timeout 5
"@)
}
## MAIN
if (-Not $IgnoreMain) {
RunWithProgressBar { TestBlockingCall } $(New-Timespan -Seconds 7)
}