docker: luarocks, luaflock, lua-sql-sqlite3 (#766)

Dockerfile

@@ -9,9 +9,11 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins
     libboost-program-options-dev \
     libboost-filesystem-dev \
     libboost-system-dev \
+    luarocks \
     rapidjson-dev \
     cmake && \
-    rm -rf /var/lib/apt/lists/*
+    rm -rf /var/lib/apt/lists/* && \
+    luarocks install luaflock
 
 WORKDIR /usr/src/app
 
@@ -35,13 +37,15 @@ RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-ins
     liblua5.1-0 \
     shapelib \
     libsqlite3-0 \
+    lua-sql-sqlite3 \
     libboost-filesystem1.74.0 \
     libboost-program-options1.74.0 && \
     rm -rf /var/lib/apt/lists/*
 
 WORKDIR /usr/src/app
 COPY --from=src /usr/src/app/build/tilemaker .
 COPY --from=src /usr/src/app/build/tilemaker-server .
+COPY --from=src /usr/local/lib/lua/5.1/flock.so /usr/local/lib/lua/5.1/flock.so
 COPY resources ./resources
 COPY process.lua ./
 COPY config.json ./

src/osm_lua_processing.cpp

@@ -199,7 +199,8 @@ bool supportsRemappingShapefiles = false;
 
 int lua_error_handler(int errCode, const char *errMessage)
 {
-	std::cerr << "lua runtime error: " << std::endl;
+	std::cerr << "lua runtime error " << std::to_string(errCode) << ":" << std::endl;
+	std::cerr << errMessage << std::endl;
 	kaguya::util::traceBack(g_luaState->state(), errMessage); // full traceback on 5.2+
 	kaguya::util::stackDump(g_luaState->state());
 	throw OsmLuaProcessing::luaProcessingException();