Progress bar for parsing a pbf file?

[fbarbe00]

I am going to be using this package quite a bit for my master thesis, and wanted to know if there are some ways to have a (approximate) progress bar when reading I file.

From my understanding, since the file is being read element by element, there is no exact way to know the number of nodes inside an osm.pbf, without iterating through it first. But are there perhaps some good estimations based on the file size, or after/during the filtering steps?

For context, I am working with a .pbf file containing all of Europe, that is ~31GB. I therefore would like to know whether some custom filtering is feasible or should be further optimised, and how long it will take.

[lonvia]

There is already a feature request for that in #43. Now that the internal processing is block-based instead of element based, a callback is actually doable.