72 lines
1.8 KiB
JavaScript
72 lines
1.8 KiB
JavaScript
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#!/usr/bin/env node
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'use strict';
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var fs = require('fs');
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var path = require('path');
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var mimeScore = require('mime-score');
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var db = require('mime-db');
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var chalk = require('chalk');
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var STANDARD_FACET_SCORE = 900;
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var byExtension = {};
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// Clear out any conflict extensions in mime-db
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for (var type in db) {
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var entry = db[type];
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entry.type = type;
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if (!entry.extensions) continue;
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entry.extensions.forEach(function(ext) {
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var drop;
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var keep = entry;
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if (ext in byExtension) {
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var e0 = entry;
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var e1 = byExtension[ext];
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e0.pri = mimeScore(e0.type, e0.source);
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e1.pri = mimeScore(e1.type, e1.source);
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drop = e0.pri < e1.pri ? e0 : e1;
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keep = e0.pri >= e1.pri ? e0 : e1;
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// Prefix lower-priority extensions with '*'
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drop.extensions = drop.extensions.map(function(e) {return e == ext ? '*' + e : e});
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console.log(
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ext + ': Preferring ' + chalk.green(keep.type) + ' (' + keep.pri +
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') over ' + chalk.red(drop.type) + ' (' + drop.pri + ')' + ' for ' + ext
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);
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}
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// Cache the hightest ranking type for this extension
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if (keep == entry) byExtension[ext] = entry;
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});
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}
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function writeTypesFile(types, path) {
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fs.writeFileSync(path, 'module.exports = ' + JSON.stringify(types) + ';');
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}
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// Segregate into standard and non-standard types based on facet per
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// https://tools.ietf.org/html/rfc6838#section-3.1
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var standard = {};
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var other = {};
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Object.keys(db).sort().forEach(function(k) {
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var entry = db[k];
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if (entry.extensions) {
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if (mimeScore(entry.type, entry.source) >= STANDARD_FACET_SCORE) {
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standard[entry.type] = entry.extensions;
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} else {
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other[entry.type] = entry.extensions;
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}
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}
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});
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writeTypesFile(standard, path.join(__dirname, '../types', 'standard.js'));
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writeTypesFile(other, path.join(__dirname, '../types', 'other.js'));
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