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library_example_keep_local_directory_up_to_date 2020-07-15 library_example_keep_local_directory_up_to_date 2023-06-21 (current)
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<code> <code>
-powershell.exe -File KeepLocalUpToDate.ps1 -sessionUrl "sftp://username:password@example.com/" -remotePath "/remote/path" -localPath "C:\local\path" [-delete]+powershell.exe -File KeepLocalUpToDate.ps1 -sessionUrl "sftp://username:password;fingerprint=ssh-rsa-xxxxxxxxxxx...@example.com/" -remotePath "/remote/path" -localPath "C:\local\path" [-delete]
</code> </code>
-//If you just want to scan for changes, but not download them, see [[library_example_watch_for_changes|Watching for changes in SFTP/FTP server]].//+//If you just want to scan for changes, but not download them, see [[library_example_watch_for_changes|*]].//
<code powershell - KeepLocalUpToDate.ps1> <code powershell - KeepLocalUpToDate.ps1>
Line 21: Line 21:
# @command      powershell.exe -ExecutionPolicy Bypass -File "%EXTENSION_PATH%" ^ # @command      powershell.exe -ExecutionPolicy Bypass -File "%EXTENSION_PATH%" ^
#                  -sessionUrl "!E" -localPath "%LocalPath%" -remotePath "%RemotePath%" ^ #                  -sessionUrl "!E" -localPath "%LocalPath%" -remotePath "%RemotePath%" ^
-#                  %Delete% %Beep% %ContinueOnError% -interval "%Interval%" -pause+#                  %Delete% %Beep% %ContinueOnError% -interval "%Interval%" ^ 
-#                  -sessionLogPath "%SessionLogPath%"+#                  -fileMask "%FileMask%" -pause -sessionLogPath "%SessionLogPath%"
# @description  Periodically scans for changes in a remote directory and ^ # @description  Periodically scans for changes in a remote directory and ^
#                  reflects them on a local directory #                  reflects them on a local directory
-# @version      6+# @version      11
# @homepage    ~~SELF~~ # @homepage    ~~SELF~~
# @require      WinSCP 5.16 # @require      WinSCP 5.16
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# @option        ContinueOnError -config -run checkbox "Continue on &error" "" -continueOnError # @option        ContinueOnError -config -run checkbox "Continue on &error" "" -continueOnError
# @option        Interval -config -run textbox "&Interval (in seconds):" "30" # @option        Interval -config -run textbox "&Interval (in seconds):" "30"
 +# @option        FileMask -config -run textbox "File &mask:" ""
# @option      - -config group "Logging" # @option      - -config group "Logging"
# @option        SessionLogPath -config sessionlogfile # @option        SessionLogPath -config sessionlogfile
Line 44: Line 45:
param ( param (
    # Use Generate Session URL function to obtain a value for -sessionUrl parameter.     # Use Generate Session URL function to obtain a value for -sessionUrl parameter.
-    $sessionUrl = "sftp://user:mypassword;fingerprint=ssh-rsa-xxxxxxxxxxx...=@example.com/",+    $sessionUrl = "sftp://user:mypassword;fingerprint=ssh-rsa-xxxxxxxxxxx...@example.com/",
    [Parameter(Mandatory = $True)]     [Parameter(Mandatory = $True)]
    $localPath,     $localPath,
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    $sessionLogPath = $Null,     $sessionLogPath = $Null,
    $interval = 30,     $interval = 30,
 +    $fileMask = $Null,
    [Switch]     [Switch]
    $pause     $pause
) )
 +
 +function Beep()
 +{
 +    if ($beep)
 +    {
 +        [System.Console]::Beep()
 +    }
 +}
 +
 +function HandleException ($e)
 +{
 +    if ($continueOnError)
 +    {
 +        Write-Host -ForegroundColor Red $_.Exception.Message
 +        Beep
 +    }
 +    else
 +    {
 +        throw $e
 +    }
 +}
 +
 +function SetConsoleTitle ($status)
 +{
 +    if ($sessionOptions)
 +    {
 +        $status = "$sessionOptions - $status"
 +    }
 +    $Host.UI.RawUI.WindowTitle = $status
 +}
try try
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    $sessionOptions = New-Object WinSCP.SessionOptions     $sessionOptions = New-Object WinSCP.SessionOptions
    $sessionOptions.ParseUrl($sessionUrl)     $sessionOptions.ParseUrl($sessionUrl)
 +
 +    $transferOptions = New-Object WinSCP.TransferOptions -Property @{ FileMask = $fileMask };
    $session = New-Object WinSCP.Session     $session = New-Object WinSCP.Session
       
-    # Optimization 
-    # (do not waste time enumerating files, if you do not need to scan for deleted files) 
-    if ($delete)  
-    { 
-        $localFiles = Get-ChildItem -Recurse -Path $localPath 
-    } 
- 
    try     try
    {     {
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        Write-Host "Connecting..."         Write-Host "Connecting..."
 +        SetConsoleTitle "Connecting"
        $session.Open($sessionOptions)         $session.Open($sessionOptions)
        while ($True)         while ($True)
        {         {
-            Write-Host "Synchronizing changes..." +            Write-Host -NoNewline "Looking for changes..." 
-            $result+            SetConsoleTitle "Looking for changes" 
- ···············$session.SynchronizeDirectories+            try 
- ···················[WinSCP.SynchronizationMode]::Local, $localPath, $remotePath, $delete+            { 
- +················$differences
- ···········$changed = $False+ ···················$session.CompareDirectories
 + ·······················[WinSCP.SynchronizationMode]::Local, $localPath, $remotePath, $delete, 
 + ·······················$False, [WinSCP.SynchronizationCriteria]::Time, $transferOptions)
-············if (!$result.IsSuccess) +················Write-Host 
-            { +                if ($differences.Count -eq 0)
-                if ($continueOnError)+
                {                 {
-                    Write-Host "Error: $($result.Failures[0].Message)" +                    Write-Host "No changes found." ··
-                   $changed = $True+
                }                 }
                else                 else
                {                 {
-                    $result.Check() +                    Write-Host "Synchronizing $($differences.Count) change(s)..." 
- ···············} +                   SetConsoleTitle "Synchronizing changes"; 
- ···········}+ ···················Beep
-············# Print updated files +····················foreach ($difference in $differences) 
- ···········foreach ($download in $result.Downloads+ ···················
- ···········+ ·······················$action = $difference.Action 
- ···············Write-Host "$($download.Destination)·&lt;= $($download.FileName)" +                        if ($action -eq [WinSCP.SynchronizationAction]::DownloadNew
- ···············$changed = $True + ·······················
- ···········}+ ···························$message = "Downloading new $($difference.Remote.FileName)...&quot; 
 +                        } 
 +                        elseif ($action -eq [WinSCP.SynchronizationAction]::DownloadUpdate) 
 +                        { 
 +                            $message = "Downloading updated $($difference.Remote.FileName)...
 +                       } 
 +                        elseif ($action -eq [WinSCP.SynchronizationAction]::DeleteLocal) 
 +                        { 
 +                            $message = "Deleting $($difference.Local.FileName)..." 
 +                        } 
 +                        else 
 +                        { 
 +                            throw "Unexpected difference $action" 
 + ·······················}
-············if ($delete) +························Write-Host -NoNewline $message
-            { +
-                # scan for removed local files (the $result does not include them) +
-                $localFiles2 = Get-ChildItem -Recurse -Path $localPath+
-················if ($localFiles) +························try 
- ···············+ ·······················
- ···················$changes = + ···························$difference.Resolve($session, $transferOptions) | Out-Null 
-························Compare-Object -DifferenceObject $localFiles2 ` + ···························Write-Host " Done.
-                            -ReferenceObject $localFiles +                        } 
-                 + ·······················catch 
-                    $removedFiles = + ·······················
-                        $changes | + ···························Write-Host 
-                       Where-Object -FilterScript { $_.SideIndicator -eq "<=" } | + ···························HandleException $_ 
-                        Select-Object -ExpandProperty InputObject +                        }
- +
- ···················# Print removed local files +
-                   foreach ($removedFile in $removedFiles) +
-····················+
- ·······················Write-Host "$removedFile deleted" +
-                        $changed = $True+
                    }                     }
                }                 }
- 
-                $localFiles = $localFiles2 
            }             }
- +············catch
-············if ($changed)+
            {             {
-                if ($beep) +                Write-Host 
-                +                HandleException $_
-                   [System.Console]::Beep() +
-················}+
            }             }
-            else + 
-            +            SetConsoleTitle "Waiting"
-                Write-Host "No change." +
-            } +
-             +
-            Write-Host "Waiting for $interval seconds, press Ctrl+C to abort..."+
            $wait = [int]$interval             $wait = [int]$interval
            # Wait for 1 second in a loop, to make the waiting breakable             # Wait for 1 second in a loop, to make the waiting breakable
            while ($wait -gt 0)             while ($wait -gt 0)
            {             {
 +                Write-Host -NoNewLine "`rWaiting for $wait seconds, press Ctrl+C to abort... "
                Start-Sleep -Seconds 1                 Start-Sleep -Seconds 1
                $wait--                 $wait--
            }             }
 +            Write-Host
            Write-Host             Write-Host
        }         }
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    finally     finally
    {     {
 +        Write-Host # to break after "Waiting..." status
        Write-Host "Disconnecting..."         Write-Host "Disconnecting..."
        # Disconnect, clean up         # Disconnect, clean up
Line 176: Line 202:
catch catch
{ {
-    Write-Host &quot;Error: $($_.Exception.Message)"+    $continueOnError = $True 
 +····HandleException $_ 
 +····SetConsoleTitle &quot;Error"
} }
Line 203: Line 231:
In the //Interval// box, specify an interval between the checks for changes. In the //Interval// box, specify an interval between the checks for changes.
 +
 +In the //File mask// box, you can specify [[file_mask|file mask]] to select/deselect files (or file types) and directories for the synchronization.
In the //Session log file//, you can specify a path to a [[logging|session log file]]. The option is available on the [[ui_pref_commands|Preferences dialog]] only. In the //Session log file//, you can specify a path to a [[logging|session log file]]. The option is available on the [[ui_pref_commands|Preferences dialog]] only.
Line 214: Line 244:
To make the synchronization run periodically, you can either [[guide_schedule|schedule the script]] or run the script in a loop. The latter may be more convenient, as it allows you to see all runs in a single console window, so that you can review the updates easily. To make the synchronization run periodically, you can either [[guide_schedule|schedule the script]] or run the script in a loop. The latter may be more convenient, as it allows you to see all runs in a single console window, so that you can review the updates easily.
-To run the script in the loop, you can use following batch file:((Note that the ''[[https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/timeout_1|timeout]]'' command is available since Windows 7 only. For alternatives in older versions of Windows, refer to [[https://stackoverflow.com/q/1672338/850848|How to sleep for 5 seconds in Windows's Command Prompt?]] article.))+To run the script in the loop, you can use following batch file:((Note that the ''[[https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/timeout|timeout]]'' command is available since Windows 7 only. For alternatives in older versions of Windows, refer to [[https://stackoverflow.com/q/1672338/850848|How to sleep for 5 seconds in Windows's Command Prompt?]] article.))
<code batch> <code batch>
@echo off @echo off

Last modified: by martin