From 4fa45dcb5617057ce673d3db42b941aae9f66271 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Paul=20H=C3=A4nsch?= <paul@plutz.net>
Date: Tue, 24 Jul 2018 00:18:42 +0200
Subject: [PATCH] page caching

---
 list.sh | 35 ++++++++++++++++++++++-------------
 1 file changed, 22 insertions(+), 13 deletions(-)

diff --git a/list.sh b/list.sh
index 25822e4..1a5a6cf 100644
--- a/list.sh
+++ b/list.sh
@@ -10,7 +10,7 @@ list_item() {
   if [ "$type" = dir ]; then
     name="${meta%%	*}";
     display="$(HTML "$name")"; link="$(URL "$ITEM/$name")"
-    printf '[a .list .dir href="%s" %s]' "${link}?${w_reflink#*?}" "$name"
+    printf '[a .list .dir href="%s" %s]' "${link}?${w_refuri#*\?}" "$name"
     return 0
   fi
 
@@ -104,24 +104,34 @@ list_order(){
 }
 
 list_filemeta(){
-  local meta base cbase fm
+  local meta base cbase fm cachename
   base="$1"
   meta="$_DATA/$ITEM/$base/.index/meta"
-  cbase="$(STRING "$base")"
   meta_dir "$_DATA/$ITEM/$base"
 
-  grep -axE '[0-9]+	[0-9]+	[0-9]+	tags=[^	]*	comment=[^	]*	.+' "$meta" \
-  | while read -r fm; do
-    printf '%s	%s/%s\n' "${fm%	*}" "$cbase" "${fm##*	}"
-  done
+  cachename="$(printf '%s\n' "$mode" "$FILTER" "$SEARCH" "$ORDER" |sha1sum)"
+  cachename="$_DATA/$ITEM/.index/${cachename%  -}.cache"
+
+  if [ "$cachename" -nt "$meta" ] 2>&-; then
+    cat "$cachename"
+  else
+    cbase="$(STRING "$base")"
+    grep -axE '[0-9]+	[0-9]+	[0-9]+	tags=[^	]*	comment=[^	]*	.+' "$meta" \
+    | while read -r fm; do
+      printf '%s	%s/%s\n' "${fm%	*}" "$cbase" "${fm##*	}"
+    done \
+    | list_filter \
+    | list_order \
+    | { [ -d "${meta%meta}" ] && tee "$cachename" || cat; }
+  fi
 }
 
 list_items() {
   local mode meta
   mode="$(COOKIE mode |grep -m1 -axE 'index|browse' || printf browse )"
-
+  
   if [ "$mode" = browse ]; then
-    [ "$ITEM" ] && printf '..\n'
+    [ "$ITEM" ] && printf 'dir\t..\n'
     (cd "$_DATA/$ITEM";
       find ./ -type d \! -name .index -mindepth 1 -maxdepth 1 \
     ) | cut -d/ -f2- | sort |sed 's;^;dir\t;;'
@@ -136,9 +146,10 @@ list_items() {
 }
 
 list_paginate() {
-  local page i c n end
+  local page i c n end qry
   page="$(GET p |grep -axE '[0-9]+' || printf 1)"; c=1
   end=$((page + LISTSIZE))
+  qry="${w_refuri#*\?}"; qry="${qry#&#112;&#61;*&#38;}"
 
   printf '[div .itemlist '
   while read -r i; do
@@ -150,7 +161,7 @@ list_paginate() {
   printf '[div .pagination'
   for n in $( seq 1 $((c / LISTSIZE + 1)) ); do
     printf '[a .page href="%s" %s]' \
-      "?p=$(( (n - 1) * LISTSIZE + 1))&$qry" "$n"
+      "?p=$(( (n - 1) * LISTSIZE + 1))&${qry}" "$n"
   done
   printf ']'
 }
@@ -176,8 +187,6 @@ printf 'Content-Type: text/html;charset=utf-8\r\n\r\n'
   printf '
   [form method=POST action="?a=multitag"'
     list_items \
-    | list_filter \
-    | list_order \
     | list_paginate
     printf '
     [div #editing
-- 
2.39.2