From fe61ee8c53089bec33014747e9fbb3f891a9c9bd Mon Sep 17 00:00:00 2001
From: Vincent Riquer <vincent+gitorious@riquer.fr>
Date: Tue, 26 Apr 2016 16:47:58 +0200
Subject: [PATCH] Optimize DB writes during cleanup

---
 atom | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/atom b/atom
index 171b6a5..34acc56 100755
--- a/atom
+++ b/atom
@@ -366,6 +366,7 @@ done
 
 deleted=0
 removed=0
+echo 'BEGIN TRANSACTION;' >&3
 for id in ${!removefile[@]}
 do
 	filename=${removefile[id]}
@@ -380,8 +381,13 @@ do
 		Delete destination_files <<<"id = $id"
 		(( ++removed ))
 	fi
+	if (( (deleted + removed) % 1000 == 0 ))
+	then
+		echo 'COMMIT;BEGIN TRANSACTION;' >&3
+	fi
 	(( cron )) || echo -en "\rClean obsolete data: $(((deleted+removed)*100/removecount))%"
 done
+echo 'COMMIT;' >&3
 (( cron )) || echo -n $'\r'
 echo -n "Suppressed $deleted files, $removed removed from database"
 (( cron )) || echo -ne "\033[K"