From 21efc8552342732b49ee3473a8690ce7d4c99f14 Mon Sep 17 00:00:00 2001
From: John Livingston <git@john-livingston.fr>
Date: Tue, 16 Jan 2024 12:27:44 +0100
Subject: [PATCH] Performance improvments:

* build-conversejs.sh: adding the ability to use a specific commit (to
  include some patches that are not upstream for now)
* Using patched ConverseJS for performance improvment (related to #96):
  * debounce MUC sidebar rendering in ConverseJS (Fix #138)
  * force history pruning, even if messages keep coming (Fix #140)
---
 CHANGELOG.md                   |  3 +++
 conversejs/build-conversejs.sh | 28 +++++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd69af99..3d598551 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,9 @@
 * Translation updates: German, French.
 * New Swedish translations.
 * UI/UX improvment: hide nickname changes when previous nickname was like "Anonymous 12345". Helps to improve performances when massive anonymous users are joining (#138), and prevent displaying unnecessary messages (#111).
+* Using patched ConverseJS for performance improvment (related to #96):
+  * debounce MUC sidebar rendering in ConverseJS (Fix #138)
+  * force history pruning, even if messages keep coming (Fix #140)
 
 ## 8.0.4
 
diff --git a/conversejs/build-conversejs.sh b/conversejs/build-conversejs.sh
index b64d1fb0..c6c07027 100644
--- a/conversejs/build-conversejs.sh
+++ b/conversejs/build-conversejs.sh
@@ -3,12 +3,26 @@
 set -euo pipefail
 set -x
 
+# Set CONVERSE_VERSION and CONVERSE_REPO to select which repo and tag/commit/branch use.
+# Defaults values:
 CONVERSE_VERSION="v10.1.6"
 CONVERSE_REPO="https://github.com/conversejs/converse.js.git"
+# You can eventually set CONVERSE_COMMIT to a specific commit ID, if you want to apply some patches.
+CONVERSE_COMMIT=""
+
+# 2014-01-16: we are using a custom version, to wait for some PR to be apply upstream.
+# This version includes following changes:
+# - #converse.js/3300: Adding the maxWait option for `debouncedPruneHistory`
+# - #converse.js/3302: debounce MUC sidebar rendering
+CONVERSE_COMMIT="732f58b50d1b1cf0d3f091668057032fb52b164a"
+CONVERSE_REPO="https://github.com/JohnXLivingston/converse.js"
 
 rootdir="$(pwd)"
 src_dir="$rootdir/conversejs"
 converse_src_dir="$rootdir/vendor/conversejs-$CONVERSE_VERSION"
+if [ -n "$CONVERSE_COMMIT" ]; then
+  converse_src_dir="$converse_src_dir-$CONVERSE_COMMIT"
+fi
 converse_build_dir="$rootdir/build/conversejs"
 converse_destination_dir="$rootdir/dist/client/conversejs"
 
@@ -18,7 +32,19 @@ if [[ ! -d $src_dir ]]; then
 fi
 
 if [[ ! -d "$converse_src_dir" ]]; then
-  git clone --depth=1 --branch $CONVERSE_VERSION $CONVERSE_REPO $converse_src_dir
+  if [ -n "$CONVERSE_COMMIT" ]; then
+    echo "Fetching ConverseJS commit $CONVERSE_COMMIT."
+    mkdir -p $converse_src_dir
+    cd $converse_src_dir
+    git init
+    git remote add origin $CONVERSE_REPO
+    git fetch --depth 1 origin $CONVERSE_COMMIT
+    git checkout $CONVERSE_COMMIT
+    cd -
+  else
+    echo "Shallow cloning ConverseJS."
+    git clone --depth=1 --branch $CONVERSE_VERSION $CONVERSE_REPO $converse_src_dir
+  fi
   rm -rf "$converse_build_dir"
 fi