74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
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#!/usr/bin/env node
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/*
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Generates a list of callbackless chrome.* API methods from chromium source
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to be used in polyfill.js
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*/
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'use strict';
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const manifest = require('../manifest.json');
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const fetch = require('make-fetch-happen');
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(async () => {
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manifest.permissions.push('extension', 'i18n', 'runtime');
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const FN_NO_CB = /\bstatic (\w+) (\w+)(?![^)]*callback)\(\s*([^)]*)\)/g;
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const BASE = 'https://github.com/chromium/chromium/raw/master/';
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const PATHS = [
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[BASE + 'extensions/common/api/', 'schema.gni'],
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[BASE + 'chrome/common/extensions/api/', 'api_sources.gni'],
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];
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console.debug('Downloading...');
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const schemas = await Promise.all(PATHS.map(([path, name]) => fetchText(path + name)));
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const files = {};
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schemas.forEach((text, i) => {
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const path = PATHS[i][0];
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text.match(/\w+\.(idl|json)/g).forEach(name => {
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files[name] = path;
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});
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});
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const resList = [];
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const resObj = {};
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await Promise.all(Object.entries(files).map(processApi));
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Object.entries(resObj)
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.sort(([a], [b]) => a < b ? -1 : a > b)
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.forEach(([key, val]) => {
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delete resObj[key];
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resObj[key] = val;
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val.sort();
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});
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console.log(resList.sort().join('\n'));
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console.log(JSON.stringify(resObj));
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async function fetchText(file) {
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return (await fetch(file)).text();
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}
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async function processApi([file, path]) {
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const [name, ext] = file.split('.');
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const api = manifest.permissions.find(p =>
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name === p.replace(/([A-Z])/g, s => '_' + s.toLowerCase()) ||
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name === p.replace(/\./g, '_'));
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if (!api) return;
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const text = await fetchText(path + file);
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const noCmt = text.replace(/^\s*\/\/.*$/gm, '');
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if (ext === 'idl') {
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const fnBlock = (noCmt.split(/\n\s*interface Functions {\s*/)[1] || '')
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.split(/\n\s*interface \w+ {/)[0];
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for (let m; (m = FN_NO_CB.exec(fnBlock));) {
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const [, type, name, params] = m;
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resList.push(`chrome.${api}.${name}(${params.replace(/\n\s*/g, ' ')}): ${type}`);
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(resObj[api] || (resObj[api] = [])).push(name);
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}
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} else {
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for (const fn of JSON.parse(noCmt)[0].functions || []) {
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const last = fn.parameters[fn.parameters.length - 1];
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if (!fn.returns_async && (!last || last.type !== 'function')) {
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resList.push(`chrome.${api}.${fn.name}(${
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fn.parameters.map(p => `${p.optional ? '?' : ''}${p.name}: ${p.type}`).join(', ')
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})`);
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(resObj[api] || (resObj[api] = [])).push(fn.name);
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}
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}
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}
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}
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})();
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