packages/babel-compat-data/scripts/build-bugfixes-targets.js
"use strict";
// NOTE: This script must be run _after_ build-data.js
const path = require("path");
const {
getLowestImplementedVersion,
environments,
writeFile,
} = require("./utils-build-data");
const data = require("./data/plugin-bugfixes");
const pluginFeatures = require("./data/plugin-features");
const generatedTargets = {};
const overlappingPlugins = {};
const allReplacedFeatures = {};
const has = Function.call.bind(Object.hasOwnProperty);
for (const [plugin, { replaces, features }] of Object.entries(data)) {
if (!has(overlappingPlugins, replaces)) {
overlappingPlugins[replaces] = [];
generatedTargets[replaces] = {};
allReplacedFeatures[replaces] = [];
}
generatedTargets[plugin] = {};
allReplacedFeatures[replaces].push(...features);
overlappingPlugins[replaces].push(plugin);
for (const env of environments) {
const supportedWithBugfix = getLowestImplementedVersion({ features }, env);
if (supportedWithBugfix) {
generatedTargets[plugin][env] = supportedWithBugfix;
}
}
}
for (const [replaced, features] of Object.entries(allReplacedFeatures)) {
let replacedFeatures = pluginFeatures[replaced];
if (!Array.isArray(replacedFeatures)) {
replacedFeatures = replacedFeatures.features;
}
for (const env of environments) {
const stillNotSupported = getLowestImplementedVersion(
{ features: replacedFeatures },
env,
name => features.some(feat => name.includes(feat))
);
if (stillNotSupported) {
generatedTargets[replaced][env] = stillNotSupported;
}
}
}
for (const [filename, data] of [
["plugin-bugfixes", generatedTargets],
["overlapping-plugins", overlappingPlugins],
]) {
const dataPath = path.join(__dirname, `../data/${filename}.json`);
if (!writeFile(data, dataPath, filename)) {
process.exitCode = 1;
break;
}
}