From ea30bf8adc3329d04ee45a4484d80036a6c893a9 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Wed, 30 Mar 2022 01:56:47 +0200
Subject: [PATCH 1/4] use more cache. Speeds up page builds

---
 inc/functions.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/inc/functions.php b/inc/functions.php
index ab43210b..5457cc5f 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1690,6 +1690,14 @@ function buildIndex($global_api = "yes") {
 			if (!$content)
 				break;
 
+			if ($config['cache']['enabled']) {
+				$contentHash = md5(json_encode($content['threads']));
+				$cacheHit = cache::get('index_cache'. $contentHash);
+				if ($cacheHit)
+					continue;
+				cache::set('index_cache'. $contentHash, "processed", 3600);
+			}
+
 			// json api
 			if ($config['api']['enabled']) {
 				$threads = $content['threads'];
-- 
2.25.1


From 868821f24c03889a058222d5a5184687ca9d8260 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Wed, 30 Mar 2022 02:27:34 +0200
Subject: [PATCH 2/4] new strat

---
 inc/functions.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/functions.php b/inc/functions.php
index 5457cc5f..895a3adb 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1691,7 +1691,7 @@ function buildIndex($global_api = "yes") {
 				break;
 
 			if ($config['cache']['enabled']) {
-				$contentHash = md5(json_encode($content['threads']));
+				$contentHash = md5(json_encode($content['body']));
 				$cacheHit = cache::get('index_cache'. $contentHash);
 				if ($cacheHit)
 					continue;
-- 
2.25.1


From c7db5d54665c1dd2dd14cd3fb5db6ad1baff7803 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Thu, 31 Mar 2022 01:40:04 +0200
Subject: [PATCH 3/4] fixed bugs

---
 inc/functions.php | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/inc/functions.php b/inc/functions.php
index 895a3adb..b80e2c63 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1690,12 +1690,19 @@ function buildIndex($global_api = "yes") {
 			if (!$content)
 				break;
 
+			// Tries to avoid rebuilding if the body is the same as the one in cache.
 			if ($config['cache']['enabled']) {
 				$contentHash = md5(json_encode($content['body']));
-				$cacheHit = cache::get('index_cache'. $contentHash);
-				if ($cacheHit)
+				$contentHashKey = '_index_hashed_'. $board . '_' . $page;
+				$cachedHash = cache::get($contentHashKey);
+				if ($cachedHash == $contentHash){
+					if ($config['api']['enabled']) {
+						// this is needed for the thread.json and catalog.json rebuilding below, which includes all pages.
+						$catalog[$page-1] = $content['threads'];
+					}
 					continue;
-				cache::set('index_cache'. $contentHash, "processed", 3600);
+				}
+				cache::set($contentHashKey, $contentHash, 3600);
 			}
 
 			// json api
-- 
2.25.1


From 914c5b3c63113b7096114648e1922ed98d068fb7 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Thu, 31 Mar 2022 01:46:40 +0200
Subject: [PATCH 4/4] fixed bugs

---
 inc/functions.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/inc/functions.php b/inc/functions.php
index b80e2c63..1ff9768a 100644
--- a/inc/functions.php
+++ b/inc/functions.php
@@ -1693,7 +1693,7 @@ function buildIndex($global_api = "yes") {
 			// Tries to avoid rebuilding if the body is the same as the one in cache.
 			if ($config['cache']['enabled']) {
 				$contentHash = md5(json_encode($content['body']));
-				$contentHashKey = '_index_hashed_'. $board . '_' . $page;
+				$contentHashKey = '_index_hashed_'. $board['uri'] . '_' . $page;
 				$cachedHash = cache::get($contentHashKey);
 				if ($cachedHash == $contentHash){
 					if ($config['api']['enabled']) {
-- 
2.25.1