Write-ProgressEx.psm1
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# mazzy@mazzy.ru, 2018-05-05 # https://github.com/mazzy-ax/Write-ProgressEx #region Module variables $ProgressEx = @{} $ProgressExDefault = @{ MessageOnFirstIteration = {param([hashtable]$pInfo) Write-Warning "[$(Get-Date)] $($pInfo.Id):$($pInfo.Activity):$($pInfo.Status): start."} MessageOnNewActivity = {param([hashtable]$pInfo) Write-Warning "[$(Get-Date)] $($pInfo.Id):$($pInfo.Activity):$($pInfo.Status):"} MessageOnNewStatus = {param([hashtable]$pInfo) Write-Warning "[$(Get-Date)] $($pInfo.Id):$($pInfo.Activity):$($pInfo.Status):"} MessageOnCompleted = {param([hashtable]$pInfo) Write-Warning "[$(Get-Date)] $($pInfo.Id):$($pInfo.Activity):$($pInfo.Status): done. Iterations=$($pInfo.Current), Elapsed=$($pInfo.stopwatch.Elapsed)"} } $StdParmNames = (Get-Command Write-Progress).Parameters.Keys #endregion function Get-ProgressEx { <# .SYNOPSIS Get or Create hashtable for progress with Id. .DESCRIPTION This cmdlet returns an hashtable related the progress with an Id. The hashtable contain activity string, current and total counters, remain seconds, PercentComplete and other progress parameters. The cmdlet returns $null if an Id was not used yet. It returns new hashtable if $force specified and an Id was not used. .NOTES A developer can modify values and use the hashtable for splatting into Write-ProgressEx. .EXAMPLE $range = 1..1000 write-ProgressEx 'wait, please' -Total $range.Count $range | write-ProgressEx | ForEach-Object { $pInfo = Get-ProgressEx if ( $pInfo.SecondsRemaining -lt 5 ) { $pInfo['Activity'] = 'just a few seconds' Write-ProgressEx @pInfo # <------- } } The splatting to Write-ProgressEx is a common pattern to use progress info: It's recalculate parameters and refresh progress on the console. #> [cmdletbinding()] [OutputType([hashtable])] param( [Parameter(ValueFromPipeline = $true, Position = 0)] [ValidateRange(0, [int]::MaxValue)] [int]$Id = 0, [switch]$Force ) process { $pInfo = $ProgressEx[$Id] if ( $pInfo -is [hashtable] ) { $pInfo.Clone() } elseif ( $Force ) { @{Id = $id} } else { $null } } } function nz ($a, $b) { if ($a) { $a } else { $b } } function Write-ProgressExMessage { <# .SYNOPSIS Write a message to output. .PARAMETER pInfo The progress info returned by Get-ProgressEx .PARAMETER Message The message .NOTES This function is not exported #> [cmdletbinding(DefaultParameterSetName = 'Message')] param( [Parameter(Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [hashtable]$pInfo, [Parameter(Position = 1, ValueFromPipelineByPropertyName = $true, ParameterSetName = 'Message')] [scriptblock[]]$Message, [Parameter(ParameterSetName = 'OnFirstIteration')] [switch]$ShowMessagesOnFirstIteration, [Parameter(ParameterSetName = 'OnNewActivity')] [switch]$ShowMessagesOnNewActivity, [Parameter(ParameterSetName = 'OnNewStatus')] [switch]$ShowMessagesOnNewStatus, [Parameter(ParameterSetName = 'OnCompleted')] [switch]$ShowMessagesOnCompleted ) process { if ( $ShowMessagesOnFirstIteration -and $pInfo.ShowMessagesOnFirstIteration ) { $Message = nz $pInfo.MessageOnFirstIteration $ProgressExDefault.MessageOnFirstIteration } elseif ( $ShowMessagesOnNewActivity -and $pInfo.ShowMessagesOnNewActivity ) { $Message = nz $pInfo.MessageOnNewActivity $ProgressExDefault.MessageOnNewActivity } elseif ( $ShowMessagesOnNewStatus -and $pInfo.ShowMessagesOnNewStatus ) { $Message = nz $pInfo.MessageOnNewStatus $ProgressExDefault.MessageOnNewStatus } elseif ( $ShowMessagesOnCompleted -and $pInfo.ShowMessagesOnCompleted ) { $Message = nz $pInfo.MessageOnCompleted $ProgressExDefault.MessageOnCompleted } # message may use all variable values in all scope $Message | Where-Object { $_ } | ForEach-Object { Invoke-Command -ScriptBlock $_ -ArgumentList $pInfo -ErrorAction SilentlyContinue } } } function Set-ProgressEx { <# .SYNOPSIS Set parameters for the progress with Id and dispaly this values to the console. .DESCRIPTION The cmdlet: * save parameters * display this parameters to console * complete progress if Completed parameter is $true * complete all children progresses always. .EXAMPLE $range = 1..1000 write-ProgressEx 'wait, please' -Total $range.Count $range | write-ProgressEx | ForEach-Object { $pInfo = Get-ProgressEx if ( $pInfo.PercentComplete -gt 50 ) { $pInfo['Status'] = 'hard work in progress' Set-ProgressEx $pInfo # <------- } } Set-ProgressEx is a rare pattern to use progress info. It's no recalulate. It refresh progress on the console only. Write-ProgressEx recommended. #> [cmdletbinding(SupportsShouldProcess = $true)] param( [Parameter(Position = 0, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true)] [hashtable]$pInfo, [switch]$Completed ) process { $idx = nz $pInfo.Id 0 # events, messages & store to the module variable if ( $pInfo.Completed -or $Completed ) { Write-ProgressExMessage $pInfo -ShowMessagesOnCompleted $pInfo.Completed = $true $pInfo.Stopwatch = $null $ProgressEx.Remove($idx) } else { if ( -not $ProgressEx[$idx].Stopwatch ) { Write-ProgressExMessage $pInfo -ShowMessagesOnFirstIteration } elseif ( $pInfo.Activity -ne $ProgressEx[$idx].Activity ) { Write-ProgressExMessage $pInfo -ShowMessagesOnNewActivity } elseif ( $pInfo.Status -ne $ProgressEx[$idx].Status ) { Write-ProgressExMessage $pInfo -ShowMessagesOnNewStatus } $ProgressEx[$idx] = $pInfo } # Invoke standard write-progress cmdlet if ( -not $pInfo.NoProgressBar -and $pInfo ) { $pArgs = @{} $pInfo.Keys | Where-Object { $_ -in $StdParmNames } | ForEach-Object { $pArgs[$_] = $pInfo[$_] } if ( $pInfo.Total ) { $pArgs.Activity = ($pArgs.Activity, ($pInfo.Current, $pInfo.Total -join '/') -join ': ') } elseif ( $pInfo.Current ) { $pArgs.Activity = ($pArgs.Activity, $pInfo.Current -join ': ') } # Activity is mandatory parameter for standard Write-Progress if ( -not $pArgs.Activity ) { $pArgs.Activity = '.' } Write-Progress @pArgs } # Recursive complete own children $ProgressEx.Clone().values | Where-Object { $_.ParentId -eq $idx } | Set-ProgressEx -Completed } } function Write-ProgressEx { <# .SYNOPSIS Powershell Extended Write-Progress cmdlet. .EXAMPLE Write-ProgressEx -Total $nodes.Count $nodes | Where-Object ...... | ForEach-Object { Write-ProgressEx -Total $names.Count -id 1 $names | Where-Object ...... | ForEach-Object { ...... Write-ProgressEx -id 1 -Increment } Write-ProgressEx -Increment } write-posProgress -complete .EXAMPLE Write-ProgressEx -Total $nodes.Count $nodes | Where-Object ...... | Write-ProgressEx | ForEach-Object { Write-ProgressEx -Total $names.Count -id 1 $names | Where-Object ...... | Write-ProgressEx -id 1 | ForEach-Object { ...... } } Write-ProgressEx -complete .EXAMPLE Ideal: is it possible? $nodes | Where-Object ...... | Write-ProgressEx | ForEach-Object { $names | Where-Object ...... | Write-ProgressEx -id 1 | ForEach-Object { ...... } } write-posProgress -complete .NOTE Commands 'Write-ProgressEx.ps1' and 'Write-ProgressEx -Complete' are equivalents. The cmdlet complete all children progresses. .NOTE A developer can use a parameter splatting. See Get-ProgressEx example. .NOTE Cmdlet is not safe with multi-thread. #> [cmdletbinding()] param( # Standard parameters for standard Powershell write-progress [Parameter(Position = 0)] [string]$Activity, [Parameter(Position = 1)] [string]$Status, [Parameter(Position = 2)] [ValidateRange(0, [int]::MaxValue)] [int]$Id = 0, [int]$PercentComplete, [int]$SecondsRemaining, [string]$CurrentOperation, [int]$ParentId, [int]$SourceId, [switch]$Completed, # Extended parameters [Parameter(ValueFromPipeline = $true)] [object]$InputObject, [ValidateRange(0, [int]::MaxValue)] [int]$Total, [ValidateRange(0, [int]::MaxValue)] [int]$Current, # current iteration number. It may be greather then $total. [switch]$Increment, [System.Diagnostics.Stopwatch]$Stopwatch, # The Сmdlet does not call a standard write-progress cmdlet. Thus the progress bar does not show. [switch]$NoProgressBar, # Message templates [scriptblock[]]$MessageOnFirstIteration, [scriptblock[]]$MessageOnNewActivity, [scriptblock[]]$MessageOnNewStatus, [scriptblock[]]$MessageOnCompleted, # The cmdlet output no messages [switch]$ShowMessages, [switch]$ShowMessagesOnFirstIteration = $ShowMessages -or $MessageOnFirstIteration, [switch]$ShowMessagesOnNewActivity = $ShowMessages -or $MessageOnNewActivity, [switch]$ShowMessagesOnNewStatus = $ShowMessages -or $MessageOnNewStatus, [switch]$ShowMessagesOnCompleted = $ShowMessages -or $MessageOnCompleted ) process { $isPipe = $inputObject -and ($MyInvocation.PipelineLength -gt 1) if ( $isPipe -or $PSBoundParameters.Count ) { $pInfo = Get-ProgressEx $id -Force $isFirstIteration = -not $pInfo.stopwatch $PSBoundParameters.Keys | ForEach-Object { $pInfo[$_] = $PSBoundParameters[$_] } if ( $Total -and -not $pInfo.ParentId ) { $ParentInfo = ($ProgressEx.Keys | Where-Object { $_ -lt $pInfo.id } | Measure-Object -Maximum).Maximum if ( $null -ne $ParentInfo ) { $pInfo.ParentId = $ParentInfo } } if ( $isFirstIteration ) { $pInfo.PercentComplete = 0 $pInfo.Current = 0 $pInfo.stopwatch = [System.Diagnostics.Stopwatch]::StartNew() } if ( $pInfo.Increment -or $isPipe ) { $pInfo.Current += 1 } if ( ($pInfo.Total -gt 0) -and ($pInfo.Current -gt 0) -and ($pInfo.Current -le $pInfo.Total) ) { if ( -not $PercentComplete ) { $pInfo.PercentComplete = [Math]::Min( [Math]::Max(0, [int]($pInfo.Current / $pInfo.Total * 100)), 100) } if ( -not $SecondsRemaining -and $pInfo.Stopwatch ) { $pInfo.SecondsRemaining = [Math]::Max(0, 1 + $pInfo.stopwatch.Elapsed.TotalSeconds * [Math]::Max(0, $pInfo.Total - $pInfo.Current) / $pInfo.Current) } } # autoname it. The caller function name used as activity if ( -not $pInfo.Activity ) { $pInfo.Activity = (Get-PSCallStack)[1].InvocationInfo.MyCommand.Name } Set-ProgressEx $pInfo } else { # No parameters outside pipe - Complete all $ProgressEx.Clone().values | Set-ProgressEx -Completed } # PassThru if ( $isPipe ) { $inputObject } } end { if ( $MyInvocation.PipelineLength -gt 1 ) { # Autocomplete itself and own children Get-ProgressEx -Id $id -Force | Set-ProgressEx -Completed } } } |