Download error-codes from Circle CI after publishing

scripts/release/prepare-stable-commands/update-stable-version-numbers.js

@@ -158,9 +158,9 @@ const run = async ({cwd, packages, version}, versionsMap) => {
   writeFileSync(diffPath, diff, {cwd});
   console.log(theme.header(`\n${numFilesModified} files have been updated.`));
   console.log(
-    theme`A full diff is availbale at {path ${relative(cwd, diffPath)}}.`
+    theme`A full diff is available at {path ${relative(cwd, diffPath)}}.`
   );
-  await confirm('Do changes changes look correct?');
+  await confirm('Do the changes above look correct?');
 };
 
 // Run this directly because logPromise would interfere with printing package dependencies.

scripts/release/publish-commands/download-error-codes-from-ci.js

@@ -0,0 +1,51 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const http = require('request-promise-json');
+const {exec} = require('child-process-promise');
+const {readJsonSync} = require('fs-extra');
+const {logPromise} = require('../utils');
+const theme = require('../theme');
+
+const run = async ({cwd, tags}) => {
+  if (!tags.includes('latest')) {
+    // Don't update error-codes for alphas.
+    return;
+  }
+
+  // All packages are built from a single source revision,
+  // so it is safe to read build info from any one of them.
+  const {buildNumber, environment} = readJsonSync(
+    `${cwd}/build/node_modules/react/build-info.json`
+  );
+
+  // If this release was created on Circle CI, grab the updated error codes from there.
+  // Else the user will have to manually regenerate them.
+  if (environment === 'ci') {
+    // https://circleci.com/docs/2.0/artifacts/#downloading-all-artifacts-for-a-build-on-circleci
+    // eslint-disable-next-line max-len
+    const metadataURL = `https://circleci.com/api/v1.1/project/github/facebook/react/${buildNumber}/artifacts?circle-token=${
+      process.env.CIRCLE_CI_API_TOKEN
+    }`;
+    const metadata = await http.get(metadataURL, true);
+
+    // Each container stores an "error-codes" artifact, unfortunately.
+    // We want to use the one that also ran `yarn build` since it may have modifications.
+    const {node_index} = metadata.find(
+      entry => entry.path === 'home/circleci/project/node_modules.tgz'
+    );
+    const {url} = metadata.find(
+      entry =>
+        entry.node_index === node_index &&
+        entry.path === 'home/circleci/project/scripts/error-codes/codes.json'
+    );
+
+    // Download and stage changers
+    await exec(`curl ${url} --output ${cwd}/scripts/error-codes/codes.json`);
+  }
+};
+
+module.exports = async params => {
+  return logPromise(run(params), theme`Retrieving error codes`);
+};

scripts/release/publish-commands/print-follow-up-instructions.js

@@ -9,7 +9,7 @@ const theme = require('../theme');
 const run = async ({cwd, packages, tags}) => {
   // All packages are built from a single source revision,
   // so it is safe to read the commit number from any one of them.
-  const {commit} = readJsonSync(
+  const {commit, environment} = readJsonSync(
     `${cwd}/build/node_modules/react/build-info.json`
   );
 
@@ -48,6 +48,26 @@ const run = async ({cwd, packages, tags}) => {
     commit
   );
   console.log(theme.command`  git push origin --tags`);
+
+  if (tags.includes('latest')) {
+    console.log();
+    console.log(
+      theme`{header Don't forget to commit the generated }{path scripts/error-codes/codes.json}`
+    );
+    if (environment === 'ci') {
+      console.log(
+        `This file has been updated locally. Please review it before committing.`
+      );
+    } else {
+      console.log(
+        `The release that was just published was created locally. ` +
+          `Because of this, you will need to update error codes manually with the following commands:`
+      );
+      console.log(theme`  {command git checkout} {version ${commit}}`);
+      console.log(theme`  {command yarn build -- --extract-errors}`);
+    }
+  }
+
   console.log();
   console.log(
     theme`{header Don't forget to update and commit the }{path CHANGELOG}`

scripts/release/publish.js

@@ -7,6 +7,7 @@ const {getPublicPackages, handleError} = require('./utils');
 
 const checkNPMPermissions = require('./publish-commands/check-npm-permissions');
 const confirmVersionAndTags = require('./publish-commands/confirm-version-and-tags');
+const downloadErrorCodesFromCI = require('./publish-commands/download-error-codes-from-ci');
 const parseParams = require('./publish-commands/parse-params');
 const printFollowUpInstructions = require('./publish-commands/print-follow-up-instructions');
 const promptForOTP = require('./publish-commands/prompt-for-otp');
@@ -24,6 +25,7 @@ const run = async () => {
     await checkNPMPermissions(params);
     const otp = await promptForOTP(params);
     await publishToNPM(params, otp);
+    await downloadErrorCodesFromCI(params);
     await printFollowUpInstructions(params);
   } catch (error) {
     handleError(error);