Allow complete ignoring of submodule

Used by the parent build infrastructure

build

@@ -26,7 +26,7 @@ usage() {
     echo -e " $ build [-k/--keep-artifacts] [-b/--web-branch <web_branch>] <platform> <action>"
     echo -e ""
     echo -e "The 'keep-artifacts' option preserves build artifacts, e.g. Docker images for system package builds."
-    echo -e "The web_branch defaults to the same branch name as the current main branch."
+    echo -e "The web_branch defaults to the same branch name as the current main branch or can be 'local' to not touch the submodule branching."
     echo -e "To build all platforms, use 'all'."
     echo -e "To perform all build actions, use 'all'."
     echo -e "Build output files are collected at '../jellyfin-build/<platform>'."
@@ -164,6 +164,7 @@ for target_platform in ${platform[@]}; do
     fi
 done
 
+if [[ ${web_branch} != 'local' ]]; then
     # Initialize submodules
     git submodule update --init --recursive
 
@@ -195,6 +196,7 @@ else
         }
     fi
     popd
+fi
 
 # Execute each platform and action in order, if said action is enabled
 pushd deployment/