Bump compat-table (#12073)

* chore: update compat-table data source

* refactor: use chromeVersions from electron-to-chromium

* chore: deduplicate yarn.lock

packages/babel-compat-data/scripts/build-bugfixes-targets.js

@@ -3,6 +3,7 @@
 // NOTE: This script must be run _after_ build-data.js
 
 const path = require("path");
+const { addElectronSupportFromChromium } = require("./chromium-to-electron");
 
 const {
   getLowestImplementedVersion,
@@ -38,6 +39,7 @@ for (const [plugin, { replaces, features }] of Object.entries(data)) {
       generatedTargets[plugin][env] = supportedWithBugfix;
     }
   }
+  addElectronSupportFromChromium(generatedTargets[plugin]);
 }
 
 for (const [replaced, features] of Object.entries(allReplacedFeatures)) {
@@ -57,6 +59,7 @@ for (const [replaced, features] of Object.entries(allReplacedFeatures)) {
       generatedTargets[replaced][env] = stillNotSupported;
     }
   }
+  addElectronSupportFromChromium(generatedTargets[replaced]);
 }
 
 for (const [filename, data] of [

packages/babel-compat-data/scripts/build-data.js

@@ -1,7 +1,8 @@
 "use strict";
 
 const path = require("path");
-
+const compatData = require("mdn-browser-compat-data").javascript;
+const { process } = require("./build-modules-support");
 const { generateData, environments, writeFile } = require("./utils-build-data");
 
 for (const target of ["plugin", "corejs2-built-in"]) {
@@ -11,16 +12,13 @@ for (const target of ["plugin", "corejs2-built-in"]) {
   );
   if (target === "plugin") {
     // add export-namespace-from from mdn-browser-compat-data
-    // todo: replace the hardcoded compat data to mdn-browser-compat-data
-    // after https://github.com/mdn/browser-compat-data/pull/6394 is published
-    newData["proposal-export-namespace-from"] = {
-      chrome: "72",
-      edge: "79",
-      opera: "60",
-      firefox: "80",
-      node: "13.2",
-      samsung: "11.0",
-    };
+    const exportNamespaceFromCompatData = process(
+      compatData.statements.export.namespace
+    );
+    // the node.js compat data is 12.0, the first node version ships `export *` behind a flag
+    // here we overwrite to 13.2 which is the first unflagged version
+    exportNamespaceFromCompatData.node = "13.2";
+    newData["proposal-export-namespace-from"] = exportNamespaceFromCompatData;
   }
   const dataPath = path.join(__dirname, `../data/${target}s.json`);
 

packages/babel-compat-data/scripts/build-modules-support.js

@@ -2,6 +2,7 @@ const path = require("path");
 const fs = require("fs");
 
 const compatData = require("mdn-browser-compat-data").javascript;
+const { addElectronSupportFromChromium } = require("./chromium-to-electron");
 
 // Map mdn-browser-compat-data to browserslist browser names
 const browserNameMap = {
@@ -47,6 +48,7 @@ function process(source) {
       );
     }
   });
+  addElectronSupportFromChromium(allowedBrowsers);
 
   return allowedBrowsers;
 }

packages/babel-compat-data/scripts/chromium-to-electron.js

@@ -0,0 +1,32 @@
+const { versions } = require("electron-to-chromium");
+// todo: we should have imported `chromiumVersions` from `require("electron-to-chromium").chromiumVersions`,
+// however the data is inconsistent with `require("electron-to-chromium").versions`.
+// see https://github.com/Kilian/electron-to-chromium/pull/36
+const chromiumVersions = {};
+for (const electronVersion of Object.keys(versions)) {
+  chromiumVersions[versions[electronVersion]] =
+    chromiumVersions[versions[electronVersion]] || electronVersion;
+}
+const chromiumVersionList = Object.keys(chromiumVersions);
+
+function chromiumToElectron(version) {
+  if (chromiumVersions[version]) {
+    return chromiumVersions[version];
+  }
+  const supportedVersion = chromiumVersionList.concat(version);
+  supportedVersion.sort((a, b) => +a - +b);
+  const nextSupportedVersion =
+    supportedVersion[supportedVersion.indexOf(version) + 1];
+  return chromiumVersions[nextSupportedVersion];
+}
+
+function addElectronSupportFromChromium(supportData) {
+  if (supportData.chrome) {
+    const electronVersion = chromiumToElectron(supportData.chrome);
+    if (electronVersion) {
+      supportData.electron = electronVersion;
+    }
+  }
+}
+
+exports.addElectronSupportFromChromium = addElectronSupportFromChromium;

packages/babel-compat-data/scripts/download-compat-table.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 set -e
 
-COMPAT_TABLE_COMMIT=163aacb6f93e325231d578e31c03141cd9086dbb
+COMPAT_TABLE_COMMIT=e77292d3fc6f8d84c9a5a12b27e4636950fa1275
 GIT_HEAD=build/compat-table/.git/HEAD
 
 if [ -d "build/compat-table" ]; then

packages/babel-compat-data/scripts/utils-build-data.js

@@ -4,31 +4,13 @@ const fs = require("fs");
 const flatMap = require("lodash/flatMap");
 const mapValues = require("lodash/mapValues");
 const findLastIndex = require("lodash/findLastIndex");
-const electronToChromiumVersions = require("electron-to-chromium").versions;
+const { addElectronSupportFromChromium } = require("./chromium-to-electron");
 
 const envs = require("../build/compat-table/environments");
 const parseEnvsVersions = require("../build/compat-table/build-utils/parse-envs-versions");
 const interpolateAllResults = require("../build/compat-table/build-utils/interpolate-all-results");
 const compareVersions = require("../build/compat-table/build-utils/compare-versions");
 
-// Add Electron to the list of environments
-Object.keys(electronToChromiumVersions).forEach(electron => {
-  const chrome = electronToChromiumVersions[electron];
-
-  const electronId = `electron${electron.replace(".", "_")}`;
-  let chromeId = `chrome${chrome}`;
-
-  // This is missing
-  if (chromeId === "chrome82") chromeId = "chrome81";
-  if (!envs[chromeId]) {
-    throw new Error(
-      `Electron ${electron} inherits from Chrome ${chrome}, which is not defined.`
-    );
-  }
-
-  envs[electronId] = { equals: chromeId };
-});
-
 const envsVersions = parseEnvsVersions(envs);
 
 const compatSources = ["es5", "es6", "es2016plus", "esnext"].map(source => {
@@ -51,7 +33,6 @@ exports.environments = [
   "ios",
   "phantom",
   "samsung",
-  "electron",
 ];
 
 const compatibilityTests = flatMap(compatSources, data =>
@@ -117,6 +98,7 @@ exports.generateData = (environments, features) => {
       const version = exports.getLowestImplementedVersion(options, env);
       if (version) plugin[env] = version;
     });
+    addElectronSupportFromChromium(plugin);
 
     return plugin;
   });