From 46dd67f9571fae1d3c9e938901bee28069c0cd2f Mon Sep 17 00:00:00 2001
From: =?utf8?q?Paul=20H=C3=A4nsch?= <paul@plutz.net>
Date: Wed, 18 Jul 2018 07:49:33 +0200
Subject: [PATCH] sanitizing and rereading of meta data

---
 multitag.sh | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/multitag.sh b/multitag.sh
index 49bf273..649fb78 100644
--- a/multitag.sh
+++ b/multitag.sh
@@ -7,12 +7,20 @@ for select in $(seq 1 $(POST_COUNT select)); do
   file="$_DATA/$ITEM/$(POST select $select)"
   meta="${file%/*}/.index/meta"
 
-  read -r length width height tags comment fn <<-EOF
+  fn="$(meta_name "$file")"
+  read -r length width height tags comment discard <<-EOF
 	$(meta_info "$file")
 	EOF
+  [ "${length%%[1-9]*}" -o "${width%%[1-9]*}" -o "${height%%[1-9]*}" = 0 ] \
+  && read -r length width height discard <<-EOF
+	$(meta_line "$file"; echo Rereading meta for "$file" >&2)
+	EOF
+  [ "${tags%%tags=*}" ] && tags='tags=';
+  [ "${comment%%comment=*}" ] && comment='comment='
 
   if LOCK "$meta"; then
-    grep -vF "	$fn" "$meta" >"${meta}.tmp"
+    grep -avF "	$fn" "$meta" >"${meta}.tmp"
+
     tags="$(UNSTRING "${tags#tags=}" |tr , '\n')"
 
     for tn in $(seq 1 $(POST_COUNT tag)); do
-- 
2.39.2