From 83ae7baa92d4bf2010666435813bb965f7c71561 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Paul=20H=C3=A4nsch?= <paul@plutz.net>
Date: Tue, 4 Jun 2019 17:37:36 +0200
Subject: [PATCH] improved update heuristics

---
 index.cgi    | 2 +-
 indexmeta.sh | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/index.cgi b/index.cgi
index 62e495a..a33211d 100755
--- a/index.cgi
+++ b/index.cgi
@@ -26,7 +26,7 @@ case $ACTION in
     SET_COOKIE +$((86400 * 90))      mode="$(POST     mode |grep -m1 -axE 'browse|index' || printf browse)"
     SET_COOKIE +$((86400 * 90))   fakemp4="$(POST  fakemp4 |grep -m1 -axE 'yes' || printf no)"
     SET_COOKIE +$((86400 * 90)) downscale="$(POST  downscale |grep -m1 -axE 'yes' || printf no)"
-    [ "$(POST index)" = "update" ] && touch -cd @0 "${_DATA}/.index/meta"
+    [ "$(POST index)" = "update" ] && touch -cd @0 "${_DATA}/.index/meta.time"
     REDIRECT "$(POST ref)"
   ;;
   bookmark)
diff --git a/indexmeta.sh b/indexmeta.sh
index fb893e1..2da085f 100644
--- a/indexmeta.sh
+++ b/indexmeta.sh
@@ -76,6 +76,9 @@ meta_dir(){
   local dir meta v
   dir="${1}"
   meta="${dir}/.index/meta"
+  metat="${dir}/.index/meta.time"
+
+  [ -f "$metat" ] || touch -d @0 "$metat"
 
   if [ -d "$dir/.index" -a \! -f "$meta" ] && LOCK "$meta"; then
     touch "$meta"  # preliminary touch to prevent concurrent generators
@@ -86,9 +89,9 @@ meta_dir(){
     done >"$meta"
 
     RELEASE "$meta"
-  elif [ -d "$dir/.index" -a "$dir" -nt "$meta" ] && LOCK "$meta"; then
+  elif [ -d "$dir/.index" -a "$dir" -nt "$metat" ] && LOCK "$meta"; then
     cp -p "$meta" "$meta.ref"; touch "$meta"
-    find "$dir" -type f -newer "$meta.ref" \
+    find "$dir" -type f -newer "$metat" \
          -mindepth 1 -maxdepth 1 \
     | grep -aE "$file_pattern" \
     | while read -r v; do
@@ -97,6 +100,7 @@ meta_dir(){
     done >>"$meta"
     sort -u "$meta" >"$meta.ref"
     mv "$meta.ref" "$meta"
+    touch "$metat"
 
     RELEASE "$meta"
   fi
-- 
2.39.2