Earlier versions of my Warframe log parser

calc.sh

#!/usr/bin/env bash

WARFRAME_DIR="/home/zekesonxx/.PlayOnLinux/wineprefix/warframe/drive_c/users/zekesonxx/Local Settings/Application Data/Warframe"
LAUNCHER_LOG="${WARFRAME_DIR}/Preprocess.log"

# progress bar taken from http://stackoverflow.com/a/21959006/1904754
progress(){
    # example usage:
    # progress 30G 9G 30
    # 30G [================>.................................] 30% (9G)

    # params:
    # $1 = total value (e.g.: source size)
    # $2 = current value (e.g.: destination size)
    # $3 = percent completed
    [[ -z $1 || -z $2 || -z $3 ]] && exit  # on empty param...

    percent=$3
    completed=$(( percent / 2 ))
    remaining=$(( 50 - completed ))

    echo -ne "\r$1 ["
    printf "%0.s=" $(seq $completed)
    echo -n ">"
    [[ $remaining != 0 ]] && printf "%0.s." $(seq $remaining)
    echo -n "] $percent% ($2)"
}

while true; do
  if [[ -e "$LAUNCHER_LOG" ]]; then
    TOUPDATE=$(grep -c "hash mismatch" "$LAUNCHER_LOG")
    DONE=$(grep -c "Used shared" "$LAUNCHER_LOG")
    if [[ $TOUPDATE == 0 ]]; then
      # no divide by 0 errors
      percent=0
    else
      percent=$(( DONE * 100 / TOUPDATE ))
    fi

    progress "$TOUPDATE" "$DONE" $percent
  else
    echo -en "\r Launcher.log not yet created"
  fi

  sleep 0.1
done

warframe.js

/* jshint node: true, quotmark: single, undef: true, indent: 2, esversion: 6 */
'use strict';
const wfpath = '/home/zekesonxx/.PlayOnLinux/wineprefix/warframe/drive_c/users/zekesonxx/Local Settings/Application Data/Warframe';
const regex = {
  hashMismatch: /[0-9\.]+\sSys\s\[Info\]: ([^\s]+) is out of date \(hash mismatch\)/,
  bytesToDownload: /[0-9\.]+\sSys\s\[Info\]: ([0-9,]+) bytes to download/,
  usedShared: /[0-9\.]+\sSys\s\[Info\]: Used shared ([^\s]+) \(([0-9,]+)[^)]+\)/
};
var fs = require('fs');
var path = require('path');

var lines = [];
var mismatches = 0;
var usedShared = 0;
var totalBytes = 0;
var downloadedBytes = 0;

function humanFileSize(bytes, si) {
    var thresh = si ? 1000 : 1024;
    if(Math.abs(bytes) < thresh) {
        return bytes + ' B';
    }
    var units = si ? ['kB','MB','GB','TB','PB','EB','ZB','YB']
        : ['KiB','MiB','GiB','TiB','PiB','EiB','ZiB','YiB'];
    var u = -1;
    do {
        bytes /= thresh;
        ++u;
    } while(Math.abs(bytes) >= thresh && u < units.length - 1);
    return bytes.toFixed(3)+' '+units[u];
}


function loadFile() {
  lines = [];
  var rawInput = fs.readFileSync(path.join(wfpath, 'Preprocess.log'), 'utf8');
  lines = rawInput.split('\n');
}

function processFile() {
  mismatches = 0;
  usedShared = 0;
  totalBytes = 0;
  downloadedBytes = 0;
  lines.forEach(function(line, i) {
    var result = null;

    //(hash mismatch)
    result = regex.hashMismatch.exec(line);
    if (result !== null) {
      mismatches++;
      return;
    }

    //bytes to download
    result = regex.bytesToDownload.exec(line);
    if (result !== null) {
      totalBytes = parseInt(result[1].replace(/\,/g, ''), 10);
      return;
    }

    //used shared
    result = regex.usedShared.exec(line);
    if (result !== null) {
      usedShared++;
      downloadedBytes += parseInt(result[2].replace(/\,/g, ''), 10);
      return;
    }
  });
}

loadFile();
processFile();
var percentage = Math.floor((downloadedBytes/totalBytes)*10000)/100;
console.log(`lines: ${lines.length};` +
            ` bytes: ${humanFileSize(downloadedBytes)}/${humanFileSize(totalBytes)} (${percentage}%);` +
            ` files: ${usedShared}/${mismatches}`);