Keep module rebuild sentinel in sync across local and shared storage

scripts/manage-modules.sh

@@ -822,14 +822,24 @@ if [ "$MODULES_LOCAL_RUN" = "1" ]; then
 else
   REBUILD_SENTINEL="/modules/.requires_rebuild"
 fi
+HOST_REBUILD_SENTINEL="${MODULES_HOST_DIR:-}"
+if [ -n "$HOST_REBUILD_SENTINEL" ]; then
+  HOST_REBUILD_SENTINEL="${HOST_REBUILD_SENTINEL%/}/.requires_rebuild"
+fi
 if [ "$SQL_EXECUTION_FAILED" = "1" ]; then
   echo "⚠️  SQL execution encountered issues; review logs above."
 fi
 
 if [ "$REBUILD_REQUIRED" = "1" ] && [ -n "$ENABLED_MODULES" ]; then
   echo "$ENABLED_MODULES" > "$REBUILD_SENTINEL"
+  if [ -n "$HOST_REBUILD_SENTINEL" ]; then
+    echo "$ENABLED_MODULES" > "$HOST_REBUILD_SENTINEL" 2>/dev/null || true
+  fi
 else
   rm -f "$REBUILD_SENTINEL" 2>/dev/null || true
+  if [ -n "$HOST_REBUILD_SENTINEL" ]; then
+    rm -f "$HOST_REBUILD_SENTINEL" 2>/dev/null || true
+  fi
 fi
 
 # Optional: keep container alive for inspection in CI/debug contexts

scripts/rebuild-with-modules.sh

@@ -314,23 +314,35 @@ docker compose down --remove-orphans >/dev/null 2>&1 || true
 
 popd >/dev/null
 
-if [ -n "$SENTINEL_FILE" ]; then
-  if ! rm -f "$SENTINEL_FILE" 2>/dev/null; then
-    if [ -f "$SENTINEL_FILE" ] && command -v docker >/dev/null 2>&1; then
-      DB_IMPORT_IMAGE="$(read_env AC_DB_IMPORT_IMAGE "acore/ac-wotlk-db-import:14.0.0-dev")"
-      if docker image inspect "$DB_IMPORT_IMAGE" >/dev/null 2>&1; then
+remove_sentinel(){
+  local sentinel_path="$1"
+  [ -n "$sentinel_path" ] || return 0
+  [ -f "$sentinel_path" ] || return 0
+  if rm -f "$sentinel_path" 2>/dev/null; then
+    return 0
+  fi
+  if command -v docker >/dev/null 2>&1; then
+    local db_image
+    db_image="$(read_env AC_DB_IMPORT_IMAGE "acore/ac-wotlk-db-import:14.0.0-dev")"
+    if docker image inspect "$db_image" >/dev/null 2>&1; then
+      local mount_dir
+      mount_dir="$(dirname "$sentinel_path")"
       docker run --rm \
         --entrypoint /bin/sh \
         --user 0:0 \
-          -v "$MODULES_DIR":/modules \
-          "$DB_IMPORT_IMAGE" \
+        -v "$mount_dir":/modules \
+        "$db_image" \
         -c 'rm -f /modules/.requires_rebuild' >/dev/null 2>&1 || true
     fi
   fi
+  if [ -f "$sentinel_path" ]; then
+    echo "⚠️  Unable to remove rebuild sentinel at $sentinel_path. Remove manually if rebuild detection persists."
   fi
-  if [ -f "$SENTINEL_FILE" ]; then
-    echo "⚠️  Unable to remove rebuild sentinel at $SENTINEL_FILE. Remove manually if rebuild detection persists."
-  fi
+}
+
+remove_sentinel "$SENTINEL_FILE"
+if [ -n "$SHARED_MODULES_DIR" ]; then
+  remove_sentinel "$SHARED_MODULES_DIR/.requires_rebuild"
 fi
 
 echo ""

setup.sh

@@ -1146,6 +1146,9 @@ fi
         export "$module_export_var"
       done
 
+      local host_modules_dir="${storage_abs}/modules"
+      export MODULES_HOST_DIR="$host_modules_dir"
+
       # Prepare isolated git config for the module script so we do not mutate user-level settings
       local prev_git_config_global="${GIT_CONFIG_GLOBAL:-}"
       local git_temp_config=""
@@ -1165,10 +1168,17 @@ fi
       export MODULES_LOCAL_RUN=1
       if (cd "$local_modules_dir" && bash "$SCRIPT_DIR/scripts/manage-modules.sh"); then
         say SUCCESS "Module repositories staged to $local_modules_dir"
+        if [ -n "$host_modules_dir" ]; then
+          mkdir -p "$host_modules_dir"
+          if [ -f "$local_modules_dir/.modules_state" ]; then
+            cp "$local_modules_dir/.modules_state" "$host_modules_dir/.modules_state" 2>/dev/null || true
+          fi
+        fi
       else
         say WARNING "Module staging encountered issues, but continuing with rebuild"
       fi
       unset MODULES_LOCAL_RUN
+      unset MODULES_HOST_DIR
 
       if [ -n "$git_temp_config" ]; then
         rm -f "$git_temp_config"