Actually disable in-app backup, do not backup backups nor cache

conf/scheduler.yaml

@@ -0,0 +1,4 @@
+status:
+  cache-purge: disabled
+  cache-clear: disabled
+  default-site-backup: disabled

doc/POST_UPGRADE.d/1.7.45~ynh3.md

@@ -0,0 +1,5 @@
+Before v1.7.45~ynh3 of this package, an upstream quirk made the app generate a backup daily, despite the default configuration suggesting it to be disabled.
+
+Starting this version, if you had not already altered the Scheduler configuration, this is fixed.
+
+The backups directory is also not backed up by YunoHost anymore, as it was superfluous.

scripts/backup

@@ -19,7 +19,10 @@ ynh_print_info --message="Declaring files to be backed up..."
 # BACKUP THE APP MAIN DIR
 #=================================================
 
-ynh_backup --src_path="$install_dir"
+# Backup install_dir except backup and cache directory
+for f in $(ls "$install_dir" -I backup -I cache); do
+    ynh_backup --src_path="${install_dir}/$f"
+done
 
 #=================================================
 # BACKUP THE NGINX CONFIGURATION

scripts/install

@@ -58,7 +58,12 @@ ynh_script_progression --message="Adding a configuration file..." --weight=1
 ynh_exec_as $app mkdir -p "$install_dir/user/config/plugins/login-ldap"
 ynh_exec_as $app touch "$install_dir/user/accounts/admin.yaml"
 
-# Setting up config
+# Setting up scheduler config
+ynh_add_config --template="../conf/scheduler.yaml" --destination="$install_dir/user/config/scheduler.yaml"
+chown $app:$app "$install_dir/user/config/scheduler.yaml"
+chmod 640 "$install_dir/user/config/scheduler.yaml"
+
+# Setting up LDAP config
 ynh_add_config --template="../conf/login-ldap.yaml" --destination="$install_dir/user/config/plugins/login-ldap.yaml"
 chown $app:$app "$install_dir/user/config/plugins/login-ldap.yaml"
 chmod 640 "$install_dir/user/config/plugins/login-ldap.yaml"

scripts/upgrade

@@ -29,6 +29,13 @@ if [ -z "${with_sftp:-}" ] || [ -z "${password:-}" ]; then
  	ynh_app_setting_set --app=$app --key=password --value=$(ynh_string_random)
 fi
 
+# Setup the scheduler config if it is missing from user directory
+if [ ! -f "$install_dir/user/config/scheduler.yaml" ]; then
+    ynh_add_config --template="../conf/scheduler.yaml" --destination="$install_dir/user/config/scheduler.yaml"
+    chown $app:$app "$install_dir/user/config/scheduler.yaml"
+    chmod 640 "$install_dir/user/config/scheduler.yaml"]
+fi
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================