modRana data repository document

This is a description for a simple program, that should generate a data repository for offline Monav routing data. It should be flexible enough to enable extending it to also handle other data in the future.

Requirements

• easy repository setup and regeneration

CLI options

Repositories

Repository definition file

This is a JSON file called repository.json that sits at the root of the repository.

Structure

Description of the different sections

= header =
format_version - 1 for now

= repository =
* name - natural language name of the repository
* last_update - epoch of the last update


= data =
Contains sections for the different data sub-repositories.


== monav ==
* name = "Monav offline routing data repository"

=== Example_Land ===
* pack_type = "monav"
* url - pack URL
* last_updated - epoch of the last update
* bytes_size (optional)

==== zsync_file_list - (optional) ===

Monav data repository

Monav data processing

• preliminary testing shows, that one Monav preprocessor process only uses a single core
  • to use all the available cores, running multiple processes might be needed
  • this might result in very big combined RAM usage though
  • needs to be tested on real data first