From: Paul Hänsch <paul@plutz.net>
Date: Wed, 17 Nov 2021 01:49:59 +0000 (+0100)
Subject: quicker update function
X-Git-Url: https://git.plutz.net/?a=commitdiff_plain;h=a2cd32dfe7f8c4fa0051ae5823552ac5c4cf4cf6;p=serve0

quicker update function
---

diff --git a/db_meta.sh b/db_meta.sh
index 5b375f7..f1eec4d 100755
--- a/db_meta.sh
+++ b/db_meta.sh
@@ -65,21 +65,24 @@ update_meta(){
   esac; done
 
   if LOCK "$meta_db"; then
-    while read -r LENGTH WIDTH HEIGHT TAGS COMMENT NAME; do
-      if [ "$name" = "${NAME%${CR}}" ]; then
-        printf '%i	%i	%i	tags=%s	comment=%s	%s\r\n' \
-               "${length:-${length-${LENGTH}}${length+0}}" \
-               "${width:-${width-${WIDTH}}${width+0}}" \
-               "${height:-${height-${HEIGHT}}${height+0}}" \
-               "$(STRING "${tags-$(UNSTRING "${TAGS#tags=}")}")" \
-               "$(STRING "${comment-$(UNSTRING "${COMMENT#comment=}")}")" \
-               "$(STRING "${name-$(UNSTRING "${NAME%${CR}}")}")"
-      else
-        printf '%i	%i	%i	tags=%s	comment=%s	%s\r\n' \
-               "$LENGTH" "$WIDTH" "$HEIGHT" "${TAGS#tags=}" \
-               "${COMMENT#comment=}" "${NAME%${CR}}"
-      fi
-    done <"$meta_db" >"${meta_db}.$$"
+    read -r LENGTH WIDTH HEIGHT TAGS COMMENT NAME <<-EOF
+	$(grep -F "	${name}${CR}" "$meta_db")
+	EOF
+    if [ ! "$NAME" ]; then
+      RELEASE "$meta_db"
+      return 1
+    fi
+    printf '%i	%i	%i	tags=%s	comment=%s	%s\r\n' \
+           "${length:-${length-${LENGTH}}${length+0}}" \
+           "${width:-${width-${WIDTH}}${width+0}}" \
+           "${height:-${height-${HEIGHT}}${height+0}}" \
+           "$(STRING "${tags-$(UNSTRING "${TAGS#tags=}")}")" \
+           "$(STRING "${comment-$(UNSTRING "${COMMENT#comment=}")}")" \
+           "${NAME%${CR}}" \
+    >"${meta_db}.$$"
+
+    grep -vF "	${name}${CR}" "$meta_db" >>"${meta_db}.$$"
+
     mv -- "${meta_db}.$$" "${meta_db}"
     RELEASE "$meta_db"
   else