osm-pbf-parser / osm-read comparison

comparison.js

// $> npm install osm-pbf-parser osm-read through2
// $> wget https://s3.amazonaws.com/metro-extracts.mapzen.com/abuja.osm.pbf

var filepath = __dirname + '/abuja.osm.pbf';
var counts = {
  'osm-pbf-parser': {
    node: 0, way: 0, relation: 0
  },
  'osm-read': {
    node: 0, way: 0, bounds: 0
  }
};

// -- osm-pbf-parser

var parseOSM = require('osm-pbf-parser');
var fs = require('fs');
var through = require('through2');

function runOsmPbfParser(done){
  var osm = parseOSM();
  fs.createReadStream(filepath)
      .pipe(osm)
      .on( 'end', done )
      .pipe(through.obj(function (row, enc, next) {
        row.forEach( function( item ){
          counts['osm-pbf-parser'][item.type]++;
        }, this );
        next();
      }))
      .on( 'error', console.error.bind(console,'osm-pbf-parser error') )
  ;
}

// -- osm-read

var osmread = require('osm-read');

function runOsmRead(done){
  osmread.parse({
    filePath: filepath,
    endDocument: function(){
      done();
    },
    bounds: function(bounds){
      counts['osm-read'].bounds++;
    },
    node: function(node){
      counts['osm-read'].node++;
    },
    way: function(way){
      counts['osm-read'].way++;
    },
    error: function(msg){
      console.error('osm-read error',msg);
    }
  });
}

// -- exec

runOsmPbfParser( function(){
  runOsmRead( function(){
    console.log( 'counts', JSON.stringify( counts, null, 2 ) );
  });
});