node-sass download stats

node-sass-stats.js

'use strict';

const json = require('./stats.json');
const table = require('markdown-table');

function getHumanNodeVersion(abi) {
  switch (parseInt(abi, 10)) {
    case 11: return 'Node 0.10.x';
    case 14: return 'Node 0.12.x';
    case 42: return 'io.js 1.x';
    case 43: return 'io.js 1.1.x';
    case 44: return 'io.js 2.x';
    case 45: return 'io.js 3.x';
    case 46: return 'Node.js 4.x';
    case 47: return 'Node.js 5.x';
    case 48: return 'Node.js 6.x';
    case 49: return 'Electron 1.3.x';
    case 50: return 'Electron 1.4.x';
    case 51: return 'Node.js 7.x';
    case 53: return 'Electron 1.6.x';
    case 57: return 'Node.js 8.x';
    case 59: return 'Node.js 9.x';
    case 63: return 'Node.js 10.x';
    default: return false;
  }
}

const stats = json.filter(({name}) => name.endsWith('.node')).map(({name, downloadCount}) => {
  const [platform, arch, abi] = name.replace('_binding.node', '').split('-');

  return {
    platform,
    arch,
    abi,
    downloadCount: parseInt(downloadCount, 10)
  };
}).reduce((acc, {platform, arch, abi, downloadCount}) => {
  if (typeof acc[abi] === 'undefined') {
    acc[abi] = 0;
  }
  acc[abi] += downloadCount;

  return acc;
}, {});

const totalDownloads = Object.entries(stats).reduce((acc, [_, count]) => acc += count, 0);

const rows = Object.entries(stats).map(([abi, downloadCount]) => {
  return [getHumanNodeVersion(abi), downloadCount.toLocaleString('en'), `${((downloadCount/totalDownloads)*100).toFixed(2)}%`];
});

console.log(table([['Release', 'Download Count', 'Percentage'], ...rows, ['Total', totalDownloads.toLocaleString('en'), '100%']]));