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#!/usr/bin/env node'use strict';
/* * This script normalizes all the specs in examples/specs and * writes the full normalized spec to `examples/specs/normalized` * the normalized spec is different than the original. * We output this to a different folder so that build-examples script does not generate * redundant Vega output specs. */const fs = require('fs');const vl = require('../build/vega-lite');const stableStringify = require('fast-json-stable-stringify');const compactStringify = require('json-stringify-pretty-compact');
const DIR = __dirname + '/..';const SPECS = '/examples/specs';const examples = fs.readdirSync(DIR + SPECS);
examples.forEach(example => {  if (example && example.includes('.vl.json')) {    const path = DIR + SPECS + '/' + example;    const spec = JSON.parse(fs.readFileSync(path));    const preNormalized = stableStringify(spec);    const fullSpec = vl.normalize(spec);    const postNormalized = stableStringify(fullSpec);    // console.log(preNormalized, postNormalized);    if (preNormalized !== postNormalized) {      const postNormalizedOutput = compactStringify(fullSpec, null, 2);      // -8 is cutting .vl.json      const newFilename = example.slice(0, -8) + '_normalized.vl.json';      const newFilenameAndPath = DIR + SPECS + '/normalized/' + newFilename;      fs.writeFile(newFilenameAndPath, postNormalizedOutput, err => {        if (err) return console.log(err);        console.log('Built:', newFilename);      });    }  }});