From 8d74ac52ea1c551a281b0d82958720d8f473cdeb Mon Sep 17 00:00:00 2001
From: Aminda Suomalainen <suomalainen+git@mikaela.info>
Date: Wed, 22 Mar 2023 09:08:36 +0200
Subject: [PATCH] gayming/playstaton2/backup-ops2l-vmc.bash: add duperemove

---
 gayming/playstation2/backup-ops2l-vmc.bash | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gayming/playstation2/backup-ops2l-vmc.bash b/gayming/playstation2/backup-ops2l-vmc.bash
index d782824..7f3e5d4 100755
--- a/gayming/playstation2/backup-ops2l-vmc.bash
+++ b/gayming/playstation2/backup-ops2l-vmc.bash
@@ -16,6 +16,12 @@ cp -arv "$VMCDIR" "$BACKUPDIR/$(date +%Y-%jT%H%M)"
 chmod -R 777 $VMCDIR
 chmod -R 777 $BACKUPDIR
 
+# If duperemove is installed, perform FS based deduplication of backups
+if hash duperemove 2>/dev/null; then
+    # recursive, dedupe, human-readable, hashfile is like ddrescue mapfile
+    duperemove -rdh --hashfile=$BACKUPDIR/duperemove.hashfile $BACKUPDIR/
+fi
+
 # Curiosity, show the space used
 du -hca --time $BACKUPDIR