Add source patch to fix ARM compatibility

scripts/install

@@ -90,6 +90,14 @@ CREATE EXTENSION IF NOT EXISTS hstore; CREATE EXTENSION IF NOT EXISTS pg_trgm;"
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+# Specific actions on ARM architecture
+if [ -n "$(uname -m | grep arm)" ] ; then
+  # Unapply commit cf9b4a789b855b5199e98a13424e409854a8e848 that breaks ARM
+  # compatibility by pointing to a recent libv8 version
+  # This is due to this libv8 issue (https://github.com/cowboyd/libv8/issues/261)
+  # that prevents it from being compiled on ARM hence no binary gem is available yet
+  cp ../sources/patches_arm/* ../sources/patches
+fi
 
 # Download, check integrity, uncompress and patch the source from app.src
 # Use the patch from https://meta.discourse.org/t/uglifier-error-during-assets-precompile/96970/4 to fix the Uglifier error
@@ -198,14 +206,6 @@ if [ -n "$(uname -m | grep arm)" ] ; then
   # Define the platform specifically to retrieve binaries
   # for libv8 because it currently doesn't compile on ARM devices
   exec_login_as $app bundle config specific_platform arm-linux
-  # Unapply commit cf9b4a789b855b5199e98a13424e409854a8e848 that breaks ARM
-  # compatibility by pointing to a recent libv8 version
-  # This is due to this libv8 issue (https://github.com/cowboyd/libv8/issues/261)
-  # that prevents it from being compiled on ARM hence no binary gem is available yet
-  (cd $final_path
-  wget https://github.com/discourse/discourse/commit/cf9b4a789b855b5199e98a13424e409854a8e848.diff -O libv8-patch.diff
-  patch -R -p1 < libv8-patch.diff
-  rm libv8-patch.diff)
 fi
 # Install dependencies
 exec_login_as $app MAKEFLAGS=-j2 bundle install --jobs 2 --path vendor/bundle --with development

scripts/upgrade

@@ -90,7 +90,14 @@ if ! ynh_is_upstream_up_to_date ; then
 	#=================================================
 	# DOWNLOAD, CHECK AND UNPACK SOURCE
 	#=================================================
-
+	# Specific actions on ARM architecture
+	if [ -n "$(uname -m | grep arm)" ] ; then
+	  # Unapply commit cf9b4a789b855b5199e98a13424e409854a8e848 that breaks ARM
+	  # compatibility by pointing to a recent libv8 version
+	  # This is due to this libv8 issue (https://github.com/cowboyd/libv8/issues/261)
+	  # that prevents it from being compiled on ARM hence no binary gem is available yet
+	  cp ../sources/patches_arm/* ../sources/patches
+	fi
 	ynh_app_setting_set $app final_path $final_path
 	# Download, check integrity, uncompress and patch the source from app.src
 	ynh_setup_source "$final_path"
@@ -136,7 +143,7 @@ if ! ynh_is_upstream_up_to_date ; then
 
 	# Don't notify on new versions (handled by the YunoHost package)
 	ynh_replace_string "new_version_emails = true" "new_version_emails = false" "$discourse_config_file"
-	
+
 	# Calculate and store the config file checksum
 	ynh_store_file_checksum "$discourse_config_file"
 
@@ -175,17 +182,6 @@ if ! ynh_is_upstream_up_to_date ; then
 	gem install bundler
 	# Install without documentation
 	exec_as $app echo "gem: --no-ri --no-rdoc" >> "$final_path/.gemrc"
-	# Specific actions on ARM architecture
-	if [ -n "$(uname -m | grep arm)" ] ; then
-	  # Unapply commit cf9b4a789b855b5199e98a13424e409854a8e848 that breaks ARM
-	  # compatibility by pointing to a recent libv8 version
-	  # This is due to this libv8 issue (https://github.com/cowboyd/libv8/issues/261)
-	  # that prevents it from being compiled on ARM hence no binary gem is available yet
-	  (cd $final_path
-	  wget https://github.com/discourse/discourse/commit/cf9b4a789b855b5199e98a13424e409854a8e848.diff -O libv8-patch.diff
-	  patch -R -p1 < libv8-patch.diff
-	  rm libv8-patch.diff)
-	fi
 	# Install dependencies
 	exec_login_as $app bundle install --path vendor/bundle --with development)
 	# On ARM architecture, replace bundled libpsl by system native libpsl

sources/patches_arm/app-2-Revert-libv8-mini_racer-dependencies-for-ARM-compati.patch

@@ -0,0 +1,24 @@
+diff --git a/Gemfile.lock b/Gemfile.lock
+index 5752044b07..016f600bcc 100644
+--- a/Gemfile.lock
++++ b/Gemfile.lock
+@@ -171,7 +171,7 @@ GEM
+     jwt (1.5.6)
+     kgio (2.11.2)
+     kramdown (1.17.0)
+-    libv8 (6.7.288.46.1)
++    libv8 (6.3.292.48.1)
+     listen (3.1.5)
+       rb-fsevent (~> 0.9, >= 0.9.4)
+       rb-inotify (~> 0.9, >= 0.9.7)
+@@ -198,8 +198,8 @@ GEM
+     method_source (0.8.2)
+     mini_mime (1.0.0)
+     mini_portile2 (2.3.0)
+-    mini_racer (0.2.0)
+-      libv8 (>= 6.3)
++    mini_racer (0.1.15)
++      libv8 (~> 6.3)
+     mini_scheduler (0.8.1)
+     mini_sql (0.1.10)
+     mini_suffix (0.3.0)