Functions/GenXdev.AI.ComfyUI/WaitForComfyCompletion.ps1
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Part of PowerShell module : GenXdev.AI.ComfyUI Original cmdlet filename : WaitForComfyCompletion.ps1 Original author : René Vaessen / GenXdev Version : 1.300.2025 ################################################################################ Copyright (c) René Vaessen / GenXdev Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ################################################################################> ############################################################################### <# .SYNOPSIS Waits for ComfyUI workflow completion with progress monitoring .DESCRIPTION Monitors the completion status of a submitted workflow by checking the ComfyUI history and queue endpoints. Provides visual progress feedback and returns the completed workflow data when processing is complete. .PARAMETER PromptId The unique prompt identifier returned from workflow submission .EXAMPLE WaitForComfyCompletion -PromptId "12345678-1234-1234-1234-123456789012" .EXAMPLE WaitForComfyCompletion "12345678-1234-1234-1234-123456789012" #> function WaitForComfyCompletion { [CmdletBinding()] param( ####################################################################### [Parameter( Mandatory = $true, Position = 0, HelpMessage = ("The unique prompt identifier returned from " + "workflow submission") )] [string]$PromptId ####################################################################### ) begin { # construct api endpoint url for monitoring workflow completion $historyUrl = "${script:comfyUIApiUrl}/history/${PromptId}" # determine processing mode for user feedback display $processingMode = if ($UseGPU) { "GPU" } else { "CPU" } # output processing mode to verbose stream for debugging Microsoft.PowerShell.Utility\Write-Verbose ("Processing with " + "${processingMode} settings...") # initialize progress tracking variables for monitoring $startTime = Microsoft.PowerShell.Utility\Get-Date # construct path to comfyui log file for progress parsing $logFile = Microsoft.PowerShell.Management\Join-Path ` $env:TEMP "comfyui.log" # initialize tracking variables for progress monitoring $lastProgress = -1 $lastLogPosition = 0 } process { # continuous monitoring loop until workflow completion is detected while ($true) { try { # check if workflow processing has completed via api $history = Microsoft.PowerShell.Utility\Invoke-RestMethod ` -Uri $historyUrl ` -Method GET ` -Verbose:$false ` -ProgressAction Continue ` -TimeoutSec 2 # verify if our specific prompt id has completed processing if ($history.$PromptId) { # complete all progress indicators Microsoft.PowerShell.Utility\Write-Progress ` -Id 1 ` -Activity "ComfyUI Generation" ` -Completed Microsoft.PowerShell.Utility\Write-Progress ` -Id 2 ` -Activity "ComfyUI Live Progress" ` -Completed # output completion message to verbose stream Microsoft.PowerShell.Utility\Write-Verbose ("Generation " + "completed!") # return the completed workflow data to caller return $history.$PromptId } } catch { # ignore timeouts as they indicate processing is still ongoing } # parse log file for progress information if it exists if (Microsoft.PowerShell.Management\Test-Path ` -LiteralPath $logFile) { try { # read log content efficiently from last known position $fileStream = [System.IO.FileStream]::new($logFile, [System.IO.FileMode]::Open, [System.IO.FileAccess]::Read, [System.IO.FileShare]::ReadWrite) # seek to last read position to avoid re-reading content $null = $fileStream.Seek($lastLogPosition, [System.IO.SeekOrigin]::Begin) # create reader for efficient text processing $reader = [System.IO.StreamReader]::new($fileStream) # read only new content since last check $newContent = $reader.ReadToEnd() # close file handles to release resources $reader.Close() $fileStream.Close() # update position tracker for next read operation $lastLogPosition = (Microsoft.PowerShell.Management\Get-Item ` -LiteralPath $logFile).Length # parse progress information from new log content $progressLines = $newContent -split "`n" | Microsoft.PowerShell.Core\Where-Object { $_ -match '(\d+)\%\s*\|.*\|\s*(\d+)\/(\d+)' } # process progress lines if any were found if ($progressLines) { # get the most recent progress line for display $lastProgressLine = $progressLines[-1] # extract percentage and step information if ($lastProgressLine -match '(\d+)\%\s*\|.*\|\s*(\d+)\/(\d+)') { # parse progress values from regex matches $percent = [int]$matches[1] $currentStep = [int]$matches[2] $totalSteps = [int]$matches[3] # update progress display if value has increased if ($percent -gt $lastProgress) { # format status message with step information $status = ("Processing step ${currentStep} of " + "${totalSteps}") # calculate estimated time remaining based on progress $secondsRemaining = if ($percent -gt 0) { # calculate elapsed time since start $elapsed = (Microsoft.PowerShell.Utility\Get-Date) - $startTime # estimate total time based on current progress $totalEstimated = ($elapsed.TotalSeconds / $percent) * 100 # calculate remaining time estimate [int]($totalEstimated - $elapsed.TotalSeconds) } else { # no progress yet, cannot estimate time 0 } # update progress display with current information Microsoft.PowerShell.Utility\Write-Progress ` -Id 1 ` -Activity "ComfyUI Generation" ` -Status $status ` -PercentComplete $percent ` -SecondsRemaining $secondsRemaining # store current progress for comparison $lastProgress = $percent } } } # extract other relevant status information from log $statusLines = $newContent -split "`n" | Microsoft.PowerShell.Core\Where-Object { ($_ -match 'INFO:') -or ($_ -match 'WARNING:') -or ($_ -match 'ERROR:') -or ($_ -match 'Loading model') -or ($_ -match 'Model loaded') -or ($_ -match 'Saving image') } # process each relevant status line found foreach ($line in $statusLines) { # check if line contains model or image operations if ($line -match 'Loading model|Model loaded|Saving image') { # clean up timestamp and process prefixes from line $cleanLine = $line -replace ('^\d{2}:\d{2}:\d{2}\.\d{3} > ' + '@todesktop/runtime: '), '' -replace ('^\[\d{4}-\d{2}-\d{2} ' + '\d{2}:\d{2}:\d{2},\d{3}\] '), '' # display cleaned status in progress indicator Microsoft.PowerShell.Utility\Write-Progress ` -Id 1 ` -Activity "ComfyUI Generation" ` -Status $cleanLine } else { # output other log lines as verbose information Microsoft.PowerShell.Utility\Write-Verbose $line } } } catch { # ignore errors reading log file as it might be locked Microsoft.PowerShell.Utility\Write-Verbose ("Could not " + "read log file: $_") } } # attempt to get real-time progress from ComfyUI window title try { # find ComfyUI processes with main windows $comfyProcesses = Microsoft.PowerShell.Management\Get-Process -Name "ComfyUI" | Microsoft.PowerShell.Core\Where-Object { $_.MainWindowHandle -gt 0 } if ($comfyProcesses -and ($comfyProcesses.Count -gt 0)) { $comfyProcess = $comfyProcesses[0] # safely access window title with additional null checks try { $windowTitle = $comfyProcess.MainWindowTitle } catch { # process might have exited or window closed during access Microsoft.PowerShell.Utility\Write-Verbose "ComfyUI process no longer accessible" $windowTitle = $null } if ($windowTitle -and $windowTitle -ne "") { # extract percentage from title (ComfyUI shows "[75%] Node") if ($windowTitle -match '\[(\d+)%\]') { try { $progressPercent = [int]$matches[1] # validate percentage is within reasonable range if ($progressPercent -ge 0 -and $progressPercent -le 100) { $comfyUIProgress = "${progressPercent}%" Microsoft.PowerShell.Utility\Write-Progress ` -Id 2 ` -Activity "ComfyUI Live Progress" ` -Status "ComfyUI: $comfyUIProgress | $windowTitle" ` -PercentComplete $progressPercent Microsoft.PowerShell.Utility\Write-Verbose "ComfyUI title progress: $windowTitle" } } catch { Microsoft.PowerShell.Utility\Write-Verbose "Could not parse percentage from title: $windowTitle" } } # extract step information (like "Step 15/20" or "Node 15/20") elseif ($windowTitle -match '(?:Step|Node)\s+(\d+)/(\d+)') { try { $currentStep = [int]$matches[1] $totalSteps = [int]$matches[2] # validate step numbers are reasonable if (($currentStep -ge 0) -and ($totalSteps -gt 0) -and ($currentStep -le $totalSteps)) { $stepPercent = [math]::Round(($currentStep / $totalSteps) * 100, 0) Microsoft.PowerShell.Utility\Write-Progress ` -Id 2 ` -Activity "ComfyUI Live Progress" ` -Status "ComfyUI: Step $currentStep/$totalSteps | $windowTitle" ` -PercentComplete $stepPercent Microsoft.PowerShell.Utility\Write-Verbose "ComfyUI step progress: $windowTitle" } } catch { Microsoft.PowerShell.Utility\Write-Verbose "Could not parse step information from title: $windowTitle" } } # fallback for any ComfyUI activity (display only, no percentage) elseif ($windowTitle -match 'ComfyUI') { Microsoft.PowerShell.Utility\Write-Progress ` -Id 2 ` -Activity "ComfyUI Live Progress" ` -Status "ComfyUI: $windowTitle" Microsoft.PowerShell.Utility\Write-Verbose "ComfyUI activity: $windowTitle" } } } } catch { Microsoft.PowerShell.Utility\Write-Verbose "Could not read ComfyUI window title: $_" } # wait before next status check to avoid excessive polling Microsoft.PowerShell.Utility\Start-Sleep -Seconds 1 } } end { } } ############################################################################### |