added Slippi Sorter

gaming/Slippi/group-replays-by-date.ps1

@@ -0,0 +1,43 @@
+#!/usr/bin/pwsh
+
+#
+# author: arian furrer
+# date: 2024-06-01
+#
+
+#
+# This script copies Slippi replays into sub-folders in case you
+# forgot to set the flag that already does that. Mainly used
+# for older replays
+#
+
+#
+# Usage:
+#     ./group-replays-by-date.ps1 -InputDir /path/to/in -OutputDir /path/to/out
+#
+
+param(
+  [Parameter(Mandatory)]
+  [String]$InputDir,
+
+  [Parameter(Mandatory)]
+  [String]$OutputDir
+)
+
+$AllFiles = $( Get-ChildItem -Path $InputDir -Filter 'Game_*.slp' -Depth 1 )
+
+ForEach ($f in $AllFiles) {
+  $FileName = $f.Name
+  $FilePath = $f.FullName
+
+  $DateString = $( ( $FileName.Split("_").Split("T") )[1] )
+  $NewDateString = $( [datetime]::ParseExact($DateString,"yyyyMMdd",$null) ).ToString('yyyy-MM')
+
+  $NewOutputDir = $( Join-Path $OutputDir $NewDateString )
+
+  if ( -not ( Test-Path $NewOutputDir ) ) {
+    New-Item -Path $NewOutputDir -ItemType Directory
+  }
+
+  Copy-Item -Path $FilePath -Destination $( Join-Path $NewOutputDir $FileName ) -Verbose
+}