From 471e12af0d58705362c38359a911b123710d0ee8 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Tue, 19 Mar 2019 22:48:14 +0100
Subject: [PATCH 01/20] Add getLatestRelease

`getLatestRelease` uses the GitHub API to retrieve the most recent React
Native release. The response data can be used to inform the user of a
newer RN version to upgrade to.
---
 packages/cli/src/tools/getLatestRelease.js | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 packages/cli/src/tools/getLatestRelease.js

diff --git a/packages/cli/src/tools/getLatestRelease.js b/packages/cli/src/tools/getLatestRelease.js
new file mode 100644
index 000000000..dc147785a
--- /dev/null
+++ b/packages/cli/src/tools/getLatestRelease.js
@@ -0,0 +1,43 @@
+/**
+ * @flow
+ */
+import https from 'https';
+
+type Release = {
+  tag_name: string,
+  html_url: string,
+  draft: boolean,
+  prerelease: boolean,
+  created_at: string,
+  published_at: string,
+  body: string,
+};
+
+export function getLatestRelease() {
+  // Replace with promisify.js
+  return new Promise<Release>((resolve, reject) => {
+    const options = {
+      hostname: 'api.github.com',
+      path: '/repos/facebook/react-native/releases/latest',
+      // https://developer.github.com/v3/#user-agent-required
+      headers: {'User-Agent': 'React-Native-CLI'},
+    };
+
+    https
+      .get(options, result => {
+        let body = '';
+
+        result.setEncoding('utf8');
+        result.on('data', data => {
+          body += data;
+        });
+
+        result.on('end', () => {
+          resolve(JSON.parse(body));
+        });
+
+        result.on('error', error => reject(error));
+      })
+      .on('error', error => reject(error));
+  });
+}

From cdeda7067aa18827d75b0b3f43b421ede96efdd1 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Tue, 19 Mar 2019 23:21:26 +0100
Subject: [PATCH 02/20] Add getNewerReleaseDataIfAvailable

This function is a wrapper around the previouslt introduced
`getLatestRelease` and will return the release data only if it is newer
that the currently used React Native version and if it is not a
prerelease.
---
 packages/cli/src/tools/getLatestRelease.js    |  43 -----
 .../getLatestRelease/getLatestRelease.js      | 167 ++++++++++++++++++
 2 files changed, 167 insertions(+), 43 deletions(-)
 delete mode 100644 packages/cli/src/tools/getLatestRelease.js
 create mode 100644 packages/cli/src/tools/getLatestRelease/getLatestRelease.js

diff --git a/packages/cli/src/tools/getLatestRelease.js b/packages/cli/src/tools/getLatestRelease.js
deleted file mode 100644
index dc147785a..000000000
--- a/packages/cli/src/tools/getLatestRelease.js
+++ /dev/null
@@ -1,43 +0,0 @@
-/**
- * @flow
- */
-import https from 'https';
-
-type Release = {
-  tag_name: string,
-  html_url: string,
-  draft: boolean,
-  prerelease: boolean,
-  created_at: string,
-  published_at: string,
-  body: string,
-};
-
-export function getLatestRelease() {
-  // Replace with promisify.js
-  return new Promise<Release>((resolve, reject) => {
-    const options = {
-      hostname: 'api.github.com',
-      path: '/repos/facebook/react-native/releases/latest',
-      // https://developer.github.com/v3/#user-agent-required
-      headers: {'User-Agent': 'React-Native-CLI'},
-    };
-
-    https
-      .get(options, result => {
-        let body = '';
-
-        result.setEncoding('utf8');
-        result.on('data', data => {
-          body += data;
-        });
-
-        result.on('end', () => {
-          resolve(JSON.parse(body));
-        });
-
-        result.on('error', error => reject(error));
-      })
-      .on('error', error => reject(error));
-  });
-}
diff --git a/packages/cli/src/tools/getLatestRelease/getLatestRelease.js b/packages/cli/src/tools/getLatestRelease/getLatestRelease.js
new file mode 100644
index 000000000..dcf9a38e8
--- /dev/null
+++ b/packages/cli/src/tools/getLatestRelease/getLatestRelease.js
@@ -0,0 +1,167 @@
+/**
+ * @flow
+ */
+import path from 'path';
+import https from 'https';
+import semver from 'semver';
+import fs from 'fs';
+import logger from '../logger';
+
+type Release = {
+  tag_name: string,
+  html_url: string,
+  draft: boolean,
+  prerelease: boolean,
+  created_at: string,
+  published_at: string,
+  body: string,
+};
+
+/**
+ * Checks via GitHub API if there is a newer stable React Native release and,
+ * if it exists, returns the release data.
+ *
+ * If the latest release is not newer or if it's a prerelease, the function
+ * will return null.
+ */
+export async function getNewerReleaseDataIfAvailable() {
+  logger.debug('Checking for a newer version of React Native');
+  try {
+    const currentVersion = require(getRNPkgJsonPath()).version;
+    logger.debug(`Current version: ${currentVersion}`);
+
+    const cache = cacheManager.get();
+    let eTag;
+    if (cache) {
+      eTag = cache.eTag;
+      logger.debug(
+        `Cached release version: ${semver.coerce(cache.release.tag_name)}`,
+      );
+    }
+
+    logger.debug('Checking for newer releases on GitHub');
+    const response: Response = await getLatestRelease(eTag);
+
+    let latestRelease;
+    if (
+      response.statusCode === 200 &&
+      response.release &&
+      !response.release.prerelease
+    ) {
+      latestRelease = response.release;
+      logger.debug(
+        `Remote release version: ${semver.coerce(latestRelease.tag_name)}`,
+      );
+      // Update the cache.
+      cacheManager.set({
+        release: latestRelease,
+        eTag: response.eTag,
+      });
+    } else {
+      // Response status is 304, meaning that our cached release data
+      // is the most recent release available.
+      logger.debug('Cache is up-to-date with GitHub releases');
+      // $FlowFixMe: We know at this point that cache is not null
+      latestRelease = cache.release;
+    }
+
+    const latestVersion = semver.coerce(latestRelease.tag_name);
+    logger.debug(`Latest stable release: ${latestVersion}`);
+    if (semver.compare(latestVersion, currentVersion) === 1) {
+      return latestRelease;
+    } else {
+      return null;
+    }
+  } catch (e) {
+    logger.debug(
+      'Something went wrong with remote version checking, moving on',
+    );
+    return null;
+  }
+}
+
+type Headers = {
+  'User-Agent': string,
+  [header: string]: string,
+};
+
+type Response = {
+  eTag: string,
+  release: ?Release,
+  statusCode: number,
+};
+
+function getLatestRelease(eTag: ?string) {
+  return new Promise<Response>((resolve, reject) => {
+    const options = {
+      hostname: 'api.github.com',
+      path: '/repos/facebook/react-native/releases/latest',
+      // https://developer.github.com/v3/#user-agent-required
+      headers: ({'User-Agent': 'React-Native-CLI'}: Headers),
+    };
+
+    if (eTag) {
+      options.headers['If-None-Match'] = eTag;
+    }
+
+    https
+      .get(options, result => {
+        let body = '';
+
+        result.setEncoding('utf8');
+        result.on('data', data => {
+          body += data;
+        });
+
+        result.on('end', () => {
+          resolve({
+            // If status code is 304, then body will be empty.
+            release: body ? JSON.parse(body) : undefined,
+            eTag: result.headers.etag,
+            statusCode: result.statusCode,
+          });
+        });
+
+        result.on('error', error => reject(error));
+      })
+      .on('error', error => reject(error));
+  });
+}
+
+const getRNPkgJsonPath = function() {
+  return path.resolve(
+    process.cwd(),
+    'node_modules',
+    'react-native',
+    'package.json',
+  );
+};
+
+const cacheManager = {
+  get: (): ?{release: Release, eTag: string} => {
+    try {
+      const cacheRaw = fs.readFileSync(
+        path.resolve(__dirname, '.cache'),
+        'utf8',
+      );
+      const cache = JSON.parse(cacheRaw);
+      logger.debug(`Found release cache ${cache.eTag}`);
+      return cache;
+    } catch (e) {
+      logger.debug('No release cache found');
+      return null;
+    }
+  },
+
+  set: (releaseData: {release: Release, eTag: string}) => {
+    logger.debug(
+      `Saving release ${semver.coerce(releaseData.release.tag_name)} as ${
+        releaseData.eTag
+      } to cache`,
+    );
+    fs.writeFileSync(
+      path.resolve(__dirname, '.cache'),
+      JSON.stringify(releaseData),
+    );
+  },
+};

From cdfd8bebde7cdb1d79478acf2c1ef492c0b02e36 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Fri, 22 Mar 2019 11:41:11 +0100
Subject: [PATCH 03/20] Check for newer release in cliEntry

---
 packages/cli/src/cliEntry.js                         | 12 ++++++++++++
 .../src/tools/getLatestRelease/getLatestRelease.js   |  4 ++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index c22bc0573..278191931 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -19,6 +19,8 @@ import init from './commands/init/initCompat';
 import assertRequiredOptions from './tools/assertRequiredOptions';
 import {logger} from '@react-native-community/cli-tools';
 import {setProjectDir} from './tools/packageManager';
+import findPlugins from './tools/findPlugins';
+import getNewerReleaseDataIfAvailable from './tools/getLatestRelease/getLatestRelease';
 import pkgJson from '../package.json';
 import loadConfig from './tools/config';
 
@@ -184,6 +186,16 @@ async function setupAndRun() {
   }
 
   logger.setVerbose(commander.verbose);
+
+  const newerRelease = await getNewerReleaseDataIfAvailable();
+  if (newerRelease) {
+    logger.info('A newer version of React Native is available!');
+    logger.info('');
+    logger.info(`Version: ${newerRelease.tag_name}`);
+    logger.info(`Changelog: ${newerRelease.html_url}`);
+    logger.info('');
+    logger.info('Upgrade to the newer version by running react-native upgrade');
+  }
 }
 
 export default {
diff --git a/packages/cli/src/tools/getLatestRelease/getLatestRelease.js b/packages/cli/src/tools/getLatestRelease/getLatestRelease.js
index dcf9a38e8..b0247d72f 100644
--- a/packages/cli/src/tools/getLatestRelease/getLatestRelease.js
+++ b/packages/cli/src/tools/getLatestRelease/getLatestRelease.js
@@ -24,7 +24,7 @@ type Release = {
  * If the latest release is not newer or if it's a prerelease, the function
  * will return null.
  */
-export async function getNewerReleaseDataIfAvailable() {
+export default (async function() {
   logger.debug('Checking for a newer version of React Native');
   try {
     const currentVersion = require(getRNPkgJsonPath()).version;
@@ -78,7 +78,7 @@ export async function getNewerReleaseDataIfAvailable() {
     );
     return null;
   }
-}
+});
 
 type Headers = {
   'User-Agent': string,

From 535d111c8c7e1f74e40bfc26c88b3e298837f9d3 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Fri, 22 Mar 2019 11:46:27 +0100
Subject: [PATCH 04/20] Rename some parts of the release checker

---
 packages/cli/src/cliEntry.js                           | 10 +++++-----
 .../getLatestRelease.js                                |  0
 2 files changed, 5 insertions(+), 5 deletions(-)
 rename packages/cli/src/tools/{getLatestRelease => releaseChecker}/getLatestRelease.js (100%)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index 278191931..a9c4d7d41 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -20,7 +20,7 @@ import assertRequiredOptions from './tools/assertRequiredOptions';
 import {logger} from '@react-native-community/cli-tools';
 import {setProjectDir} from './tools/packageManager';
 import findPlugins from './tools/findPlugins';
-import getNewerReleaseDataIfAvailable from './tools/getLatestRelease/getLatestRelease';
+import getLatestRelease from './tools/releaseChecker/getLatestRelease';
 import pkgJson from '../package.json';
 import loadConfig from './tools/config';
 
@@ -187,12 +187,12 @@ async function setupAndRun() {
 
   logger.setVerbose(commander.verbose);
 
-  const newerRelease = await getNewerReleaseDataIfAvailable();
-  if (newerRelease) {
+  const latestRelease = await getLatestRelease();
+  if (latestRelease) {
     logger.info('A newer version of React Native is available!');
     logger.info('');
-    logger.info(`Version: ${newerRelease.tag_name}`);
-    logger.info(`Changelog: ${newerRelease.html_url}`);
+    logger.info(`Version: ${latestRelease.tag_name}`);
+    logger.info(`Changelog: ${latestRelease.html_url}`);
     logger.info('');
     logger.info('Upgrade to the newer version by running react-native upgrade');
   }
diff --git a/packages/cli/src/tools/getLatestRelease/getLatestRelease.js b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
similarity index 100%
rename from packages/cli/src/tools/getLatestRelease/getLatestRelease.js
rename to packages/cli/src/tools/releaseChecker/getLatestRelease.js

From 02f275a7974586e6d03e61505e6bb5a8af425d22 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Mon, 25 Mar 2019 18:52:19 +0100
Subject: [PATCH 05/20] Add new RN printing utility

`printNewRelease` will output to console a notification when a newer
version of React Native is available.
---
 packages/cli/src/cliEntry.js                  | 15 +++--
 .../tools/releaseChecker/getLatestRelease.js  | 14 +---
 .../tools/releaseChecker/printNewRelease.js   | 23 +++++++
 yarn.lock                                     | 66 +++++++++++++++++++
 4 files changed, 99 insertions(+), 19 deletions(-)
 create mode 100644 packages/cli/src/tools/releaseChecker/printNewRelease.js

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index a9c4d7d41..222a15951 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -21,6 +21,7 @@ import {logger} from '@react-native-community/cli-tools';
 import {setProjectDir} from './tools/packageManager';
 import findPlugins from './tools/findPlugins';
 import getLatestRelease from './tools/releaseChecker/getLatestRelease';
+import printNewRelease from './tools/releaseChecker/printNewRelease';
 import pkgJson from '../package.json';
 import loadConfig from './tools/config';
 
@@ -187,14 +188,14 @@ async function setupAndRun() {
 
   logger.setVerbose(commander.verbose);
 
-  const latestRelease = await getLatestRelease();
+  const {version: currentVersion} = require(path.join(
+    ctx.root,
+    'node_modules/react-native/package.json',
+  ));
+  const latestRelease = await getLatestRelease(currentVersion);
+
   if (latestRelease) {
-    logger.info('A newer version of React Native is available!');
-    logger.info('');
-    logger.info(`Version: ${latestRelease.tag_name}`);
-    logger.info(`Changelog: ${latestRelease.html_url}`);
-    logger.info('');
-    logger.info('Upgrade to the newer version by running react-native upgrade');
+    printNewRelease(latestRelease, currentVersion);
   }
 }
 
diff --git a/packages/cli/src/tools/releaseChecker/getLatestRelease.js b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
index b0247d72f..fb08af9a3 100644
--- a/packages/cli/src/tools/releaseChecker/getLatestRelease.js
+++ b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
@@ -7,7 +7,7 @@ import semver from 'semver';
 import fs from 'fs';
 import logger from '../logger';
 
-type Release = {
+export type Release = {
   tag_name: string,
   html_url: string,
   draft: boolean,
@@ -24,10 +24,9 @@ type Release = {
  * If the latest release is not newer or if it's a prerelease, the function
  * will return null.
  */
-export default (async function() {
+export default (async function(currentVersion: string) {
   logger.debug('Checking for a newer version of React Native');
   try {
-    const currentVersion = require(getRNPkgJsonPath()).version;
     logger.debug(`Current version: ${currentVersion}`);
 
     const cache = cacheManager.get();
@@ -128,15 +127,6 @@ function getLatestRelease(eTag: ?string) {
   });
 }
 
-const getRNPkgJsonPath = function() {
-  return path.resolve(
-    process.cwd(),
-    'node_modules',
-    'react-native',
-    'package.json',
-  );
-};
-
 const cacheManager = {
   get: (): ?{release: Release, eTag: string} => {
     try {
diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
new file mode 100644
index 000000000..88e6467f2
--- /dev/null
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -0,0 +1,23 @@
+/**
+ * @flow
+ */
+import boxen from 'boxen';
+import chalk from 'chalk';
+import type {Release} from './getLatestRelease';
+
+/**
+ * Notifies the user that a newer version of React Native is available.
+ */
+export default function(latestRelease: Release, currentVersion: string) {
+  console.log(
+    boxen(
+      'A newer release of React Native is available!\n\n' +
+        `Current:   v${currentVersion}\n` +
+        `Latest:    ${chalk.green(latestRelease.tag_name)}\n` +
+        `Changelog: ${chalk.underline(latestRelease.html_url)}\n\n` +
+        `Run ${chalk.blue('react-native upgrade')} to ` +
+        'upgrade to the latest version',
+      {padding: 1, margin: 1, borderStyle: 'round', borderColor: 'yellow'},
+    ),
+  );
+}
diff --git a/yarn.lock b/yarn.lock
index a72c5c0fb..3d7cdd45a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2119,6 +2119,13 @@ ajv@^6.5.3:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+ansi-align@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-align/-/ansi-align-3.0.0.tgz#b536b371cf687caaef236c18d3e21fe3797467cb"
+  integrity sha512-ZpClVKqXN3RGBmKibdfWzqCY4lnjEuoNzU5T0oEFpfd/z5qJHVarukridD4juLO2FXMiwUQxr9WqQtaYa8XRYw==
+  dependencies:
+    string-width "^3.0.0"
+
 ansi-escapes@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.2.0.tgz#8780b98ff9dbf5638152d1f1fe5c1d7b4442976b"
@@ -2148,6 +2155,11 @@ ansi-regex@^4.0.0, ansi-regex@^4.1.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
   integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
 
+ansi-regex@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
+  integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
+
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
@@ -2518,6 +2530,18 @@ bluebird@~3.4.1:
   version "3.4.7"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.7.tgz#f72d760be09b7f76d08ed8fae98b289a8d05fab3"
   integrity sha1-9y12C+Cbf3bQjtj66Ysomo0F+rM=
+boxen@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/boxen/-/boxen-3.0.0.tgz#2e229f603c9c1da9d2966b7e9a5681eb692eca23"
+  integrity sha512-6BI51DCC62Ylgv78Kfn+MHkyPwSlhulks+b+wz7bK1vsTFgbSEy/E1DOxx1wjf/0YdkrfPUMh9NoaW419M7csQ==
+  dependencies:
+    ansi-align "^3.0.0"
+    camelcase "^5.0.0"
+    chalk "^2.4.2"
+    cli-boxes "^2.0.0"
+    string-width "^3.0.0"
+    term-size "^1.2.0"
+    widest-line "^2.0.0"
 
 bplist-creator@0.0.7:
   version "0.0.7"
@@ -2843,6 +2867,11 @@ class-utils@^0.3.5:
     isobject "^3.0.0"
     static-extend "^0.1.1"
 
+cli-boxes@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/cli-boxes/-/cli-boxes-2.0.0.tgz#de5eb5ce7462833133e85f5710fabb38377e9333"
+  integrity sha512-P46J1Wf3BVD0E5plybtf6g/NtHYAUlOIt7w3ou/Ova/p7dJPdukPV4yp+BF8dpmnnk45XlMzn+x9kfzyucKzrg==
+
 cli-cursor@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
@@ -3551,6 +3580,11 @@ electron-to-chromium@^1.3.103:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.103.tgz#a695777efdbc419cad6cbb0e58458251302cd52f"
   integrity sha512-tObPqGmY9X8MUM8i3MEimYmbnLLf05/QV5gPlkR8MQ3Uj8G8B2govE1U4cQcBYtv3ymck9Y8cIOu4waoiykMZQ==
 
+emoji-regex@^7.0.1:
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
+  integrity sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==
+
 encodeurl@~1.0.1, encodeurl@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
@@ -8559,6 +8593,14 @@ string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
   integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
+string-width@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
+  integrity sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==
+  dependencies:
+    emoji-regex "^7.0.1"
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^5.1.0"
 
 string_decoder@~1.1.1:
   version "1.1.1"
@@ -8588,6 +8630,17 @@ strip-ansi@^5.0.0, strip-ansi@^5.2.0:
   dependencies:
     ansi-regex "^4.1.0"
 
+strip-ansi@^5.1.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
+  integrity sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==
+  dependencies:
+    ansi-regex "^4.1.0"
+
+strip-bom@3.0.0, strip-bom@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
+
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -8728,6 +8781,13 @@ temp@0.8.3:
     os-tmpdir "^1.0.0"
     rimraf "~2.2.6"
 
+term-size@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/term-size/-/term-size-1.2.0.tgz#458b83887f288fc56d6fffbfad262e26638efa69"
+  integrity sha1-RYuDiH8oj8Vtb/+/rSYuJmOO+mk=
+  dependencies:
+    execa "^0.7.0"
+
 test-exclude@^5.0.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.1.0.tgz#6ba6b25179d2d38724824661323b73e03c0c1de1"
@@ -9213,6 +9273,12 @@ windows-release@^3.1.0:
   integrity sha512-hBb7m7acFgQPQc222uEQTmdcGLeBmQLNLFIh0rDk3CwFOBrfjefLzEfEfmpMq8Af/n/GnFf3eYf203FY1PmudA==
   dependencies:
     execa "^0.10.0"
+widest-line@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/widest-line/-/widest-line-2.0.1.tgz#7438764730ec7ef4381ce4df82fb98a53142a3fc"
+  integrity sha512-Ba5m9/Fa4Xt9eb2ELXt77JxVDV8w7qQrH0zS/TWSJdLyAwQjWoOzpzj5lwVftDz6n/EOu3tNACS84v509qwnJA==
+  dependencies:
+    string-width "^2.1.1"
 
 winston@0.8.x:
   version "0.8.3"

From e589b172f79bb55d1a5a6f84c2c0c26efca7661c Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 30 Mar 2019 16:22:59 +0100
Subject: [PATCH 06/20] Replace boxen with logger, simplify message

---
 .../tools/releaseChecker/printNewRelease.js   | 18 ++---
 yarn.lock                                     | 66 -------------------
 2 files changed, 7 insertions(+), 77 deletions(-)

diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
index 88e6467f2..f5758a233 100644
--- a/packages/cli/src/tools/releaseChecker/printNewRelease.js
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -1,23 +1,19 @@
 /**
  * @flow
  */
-import boxen from 'boxen';
 import chalk from 'chalk';
+import logger from '../logger';
 import type {Release} from './getLatestRelease';
 
 /**
  * Notifies the user that a newer version of React Native is available.
  */
 export default function(latestRelease: Release, currentVersion: string) {
-  console.log(
-    boxen(
-      'A newer release of React Native is available!\n\n' +
-        `Current:   v${currentVersion}\n` +
-        `Latest:    ${chalk.green(latestRelease.tag_name)}\n` +
-        `Changelog: ${chalk.underline(latestRelease.html_url)}\n\n` +
-        `Run ${chalk.blue('react-native upgrade')} to ` +
-        'upgrade to the latest version',
-      {padding: 1, margin: 1, borderStyle: 'round', borderColor: 'yellow'},
-    ),
+  logger.info(
+    'Your current version of React Native is out of date. ' +
+      `The latest version is ${latestRelease.tag_name}, ` +
+      `while you're on v${currentVersion}`,
   );
+  logger.info(`Changelog: ${chalk.underline(latestRelease.html_url)}`);
+  logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
 }
diff --git a/yarn.lock b/yarn.lock
index 3d7cdd45a..a72c5c0fb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2119,13 +2119,6 @@ ajv@^6.5.3:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
-ansi-align@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-align/-/ansi-align-3.0.0.tgz#b536b371cf687caaef236c18d3e21fe3797467cb"
-  integrity sha512-ZpClVKqXN3RGBmKibdfWzqCY4lnjEuoNzU5T0oEFpfd/z5qJHVarukridD4juLO2FXMiwUQxr9WqQtaYa8XRYw==
-  dependencies:
-    string-width "^3.0.0"
-
 ansi-escapes@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.2.0.tgz#8780b98ff9dbf5638152d1f1fe5c1d7b4442976b"
@@ -2155,11 +2148,6 @@ ansi-regex@^4.0.0, ansi-regex@^4.1.0:
   resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
   integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
 
-ansi-regex@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-4.1.0.tgz#8b9f8f08cf1acb843756a839ca8c7e3168c51997"
-  integrity sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==
-
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
@@ -2530,18 +2518,6 @@ bluebird@~3.4.1:
   version "3.4.7"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.4.7.tgz#f72d760be09b7f76d08ed8fae98b289a8d05fab3"
   integrity sha1-9y12C+Cbf3bQjtj66Ysomo0F+rM=
-boxen@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/boxen/-/boxen-3.0.0.tgz#2e229f603c9c1da9d2966b7e9a5681eb692eca23"
-  integrity sha512-6BI51DCC62Ylgv78Kfn+MHkyPwSlhulks+b+wz7bK1vsTFgbSEy/E1DOxx1wjf/0YdkrfPUMh9NoaW419M7csQ==
-  dependencies:
-    ansi-align "^3.0.0"
-    camelcase "^5.0.0"
-    chalk "^2.4.2"
-    cli-boxes "^2.0.0"
-    string-width "^3.0.0"
-    term-size "^1.2.0"
-    widest-line "^2.0.0"
 
 bplist-creator@0.0.7:
   version "0.0.7"
@@ -2867,11 +2843,6 @@ class-utils@^0.3.5:
     isobject "^3.0.0"
     static-extend "^0.1.1"
 
-cli-boxes@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/cli-boxes/-/cli-boxes-2.0.0.tgz#de5eb5ce7462833133e85f5710fabb38377e9333"
-  integrity sha512-P46J1Wf3BVD0E5plybtf6g/NtHYAUlOIt7w3ou/Ova/p7dJPdukPV4yp+BF8dpmnnk45XlMzn+x9kfzyucKzrg==
-
 cli-cursor@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
@@ -3580,11 +3551,6 @@ electron-to-chromium@^1.3.103:
   resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.103.tgz#a695777efdbc419cad6cbb0e58458251302cd52f"
   integrity sha512-tObPqGmY9X8MUM8i3MEimYmbnLLf05/QV5gPlkR8MQ3Uj8G8B2govE1U4cQcBYtv3ymck9Y8cIOu4waoiykMZQ==
 
-emoji-regex@^7.0.1:
-  version "7.0.3"
-  resolved "https://registry.yarnpkg.com/emoji-regex/-/emoji-regex-7.0.3.tgz#933a04052860c85e83c122479c4748a8e4c72156"
-  integrity sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA==
-
 encodeurl@~1.0.1, encodeurl@~1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
@@ -8593,14 +8559,6 @@ string_decoder@~0.10.x:
   version "0.10.31"
   resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
   integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
-string-width@^3.0.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
-  integrity sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==
-  dependencies:
-    emoji-regex "^7.0.1"
-    is-fullwidth-code-point "^2.0.0"
-    strip-ansi "^5.1.0"
 
 string_decoder@~1.1.1:
   version "1.1.1"
@@ -8630,17 +8588,6 @@ strip-ansi@^5.0.0, strip-ansi@^5.2.0:
   dependencies:
     ansi-regex "^4.1.0"
 
-strip-ansi@^5.1.0:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
-  integrity sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==
-  dependencies:
-    ansi-regex "^4.1.0"
-
-strip-bom@3.0.0, strip-bom@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
-
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -8781,13 +8728,6 @@ temp@0.8.3:
     os-tmpdir "^1.0.0"
     rimraf "~2.2.6"
 
-term-size@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/term-size/-/term-size-1.2.0.tgz#458b83887f288fc56d6fffbfad262e26638efa69"
-  integrity sha1-RYuDiH8oj8Vtb/+/rSYuJmOO+mk=
-  dependencies:
-    execa "^0.7.0"
-
 test-exclude@^5.0.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-5.1.0.tgz#6ba6b25179d2d38724824661323b73e03c0c1de1"
@@ -9273,12 +9213,6 @@ windows-release@^3.1.0:
   integrity sha512-hBb7m7acFgQPQc222uEQTmdcGLeBmQLNLFIh0rDk3CwFOBrfjefLzEfEfmpMq8Af/n/GnFf3eYf203FY1PmudA==
   dependencies:
     execa "^0.10.0"
-widest-line@^2.0.0:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/widest-line/-/widest-line-2.0.1.tgz#7438764730ec7ef4381ce4df82fb98a53142a3fc"
-  integrity sha512-Ba5m9/Fa4Xt9eb2ELXt77JxVDV8w7qQrH0zS/TWSJdLyAwQjWoOzpzj5lwVftDz6n/EOu3tNACS84v509qwnJA==
-  dependencies:
-    string-width "^2.1.1"
 
 winston@0.8.x:
   version "0.8.3"

From 76dd8cc57ae4ae60492c5458a152edb4b7ed78f3 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 30 Mar 2019 17:25:00 +0100
Subject: [PATCH 07/20] Extract release cache manager to own file

---
 .../tools/releaseChecker/getLatestRelease.js  | 51 ++++---------------
 .../releaseChecker/releaseCacheManager.js     | 49 ++++++++++++++++++
 2 files changed, 58 insertions(+), 42 deletions(-)
 create mode 100644 packages/cli/src/tools/releaseChecker/releaseCacheManager.js

diff --git a/packages/cli/src/tools/releaseChecker/getLatestRelease.js b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
index fb08af9a3..16f85db24 100644
--- a/packages/cli/src/tools/releaseChecker/getLatestRelease.js
+++ b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
@@ -1,11 +1,10 @@
 /**
  * @flow
  */
-import path from 'path';
 import https from 'https';
 import semver from 'semver';
-import fs from 'fs';
 import logger from '../logger';
+import cacheManager from './releaseCacheManager';
 
 export type Release = {
   tag_name: string,
@@ -29,12 +28,12 @@ export default (async function(currentVersion: string) {
   try {
     logger.debug(`Current version: ${currentVersion}`);
 
-    const cache = cacheManager.get();
-    let eTag;
-    if (cache) {
-      eTag = cache.eTag;
+    const eTag = cacheManager.get('eTag');
+    const release: Release = cacheManager.get('release');
+
+    if (release) {
       logger.debug(
-        `Cached release version: ${semver.coerce(cache.release.tag_name)}`,
+        `Cached release version: ${semver.coerce(release.tag_name)}`,
       );
     }
 
@@ -52,16 +51,13 @@ export default (async function(currentVersion: string) {
         `Remote release version: ${semver.coerce(latestRelease.tag_name)}`,
       );
       // Update the cache.
-      cacheManager.set({
-        release: latestRelease,
-        eTag: response.eTag,
-      });
+      cacheManager.set('eTag', response.eTag);
+      cacheManager.set('release', latestRelease);
     } else {
       // Response status is 304, meaning that our cached release data
       // is the most recent release available.
       logger.debug('Cache is up-to-date with GitHub releases');
-      // $FlowFixMe: We know at this point that cache is not null
-      latestRelease = cache.release;
+      latestRelease = release;
     }
 
     const latestVersion = semver.coerce(latestRelease.tag_name);
@@ -126,32 +122,3 @@ function getLatestRelease(eTag: ?string) {
       .on('error', error => reject(error));
   });
 }
-
-const cacheManager = {
-  get: (): ?{release: Release, eTag: string} => {
-    try {
-      const cacheRaw = fs.readFileSync(
-        path.resolve(__dirname, '.cache'),
-        'utf8',
-      );
-      const cache = JSON.parse(cacheRaw);
-      logger.debug(`Found release cache ${cache.eTag}`);
-      return cache;
-    } catch (e) {
-      logger.debug('No release cache found');
-      return null;
-    }
-  },
-
-  set: (releaseData: {release: Release, eTag: string}) => {
-    logger.debug(
-      `Saving release ${semver.coerce(releaseData.release.tag_name)} as ${
-        releaseData.eTag
-      } to cache`,
-    );
-    fs.writeFileSync(
-      path.resolve(__dirname, '.cache'),
-      JSON.stringify(releaseData),
-    );
-  },
-};
diff --git a/packages/cli/src/tools/releaseChecker/releaseCacheManager.js b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
new file mode 100644
index 000000000..e349f2252
--- /dev/null
+++ b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
@@ -0,0 +1,49 @@
+/**
+ * @flow
+ */
+import path from 'path';
+import fs from 'fs';
+import logger from '../logger';
+
+type ReleaseCacheKey = 'eTag' | 'release' | 'lastChecked';
+
+function loadCache(): ?Object {
+  try {
+    const cacheRaw = fs.readFileSync(path.resolve(__dirname, '.cache'), 'utf8');
+    const cache = JSON.parse(cacheRaw);
+    return cache;
+  } catch (e) {
+    if (e.code === 'ENOENT') {
+      // Create cache file since it doesn't exist.
+      saveCache({});
+    }
+    logger.debug('No release cache found');
+  }
+}
+
+function saveCache(cache: Object) {
+  fs.writeFileSync(
+    path.resolve(__dirname, '.cache'),
+    JSON.stringify(cache, null, 2),
+  );
+}
+
+function get(key: ReleaseCacheKey): any {
+  const cache = loadCache();
+  if (cache) {
+    return cache[key];
+  }
+}
+
+function set(key: ReleaseCacheKey, value: any) {
+  const cache = loadCache();
+  if (cache) {
+    cache[key] = value;
+    saveCache(cache);
+  }
+}
+
+export default {
+  get,
+  set,
+};

From 8146945fe4242b153f38e988d1beaf0872573a15 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 30 Mar 2019 17:25:37 +0100
Subject: [PATCH 08/20] Add one week interval to new printNewRelease

---
 .../tools/releaseChecker/printNewRelease.js   | 23 +++++++++++++------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
index f5758a233..8311fd14d 100644
--- a/packages/cli/src/tools/releaseChecker/printNewRelease.js
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -4,16 +4,25 @@
 import chalk from 'chalk';
 import logger from '../logger';
 import type {Release} from './getLatestRelease';
+import cacheManager from './releaseCacheManager';
 
 /**
  * Notifies the user that a newer version of React Native is available.
  */
 export default function(latestRelease: Release, currentVersion: string) {
-  logger.info(
-    'Your current version of React Native is out of date. ' +
-      `The latest version is ${latestRelease.tag_name}, ` +
-      `while you're on v${currentVersion}`,
-  );
-  logger.info(`Changelog: ${chalk.underline(latestRelease.html_url)}`);
-  logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
+  const aWeek = 7 * 24 * 60 * 60 * 1000; // 7 days.
+
+  const lastChecked = cacheManager.get('lastChecked');
+  const now = new Date();
+  if (!lastChecked || now - new Date(lastChecked) > aWeek) {
+    logger.info(
+      'Your current version of React Native is out of date. ' +
+        `The latest version is ${latestRelease.tag_name}, ` +
+        `while you're on v${currentVersion}`,
+    );
+    logger.info(`Changelog: ${chalk.underline(latestRelease.html_url)}`);
+    logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
+
+    cacheManager.set('lastChecked', now.toISOString());
+  }
 }

From 060ceceacd46819edbc4a25dc5884d198da4260f Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 30 Mar 2019 18:17:32 +0100
Subject: [PATCH 09/20] Force RN version checking before command execution

---
 packages/cli/src/cliEntry.js | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index 222a15951..1d0c9a41c 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -171,6 +171,18 @@ async function setupAndRun() {
 
   setProjectDir(ctx.root);
 
+  // New version check must occur before `commander.parse` to ensure that
+  // the message of a new release happens before anything else.
+  const {version: currentVersion} = require(path.join(
+    ctx.root,
+    'node_modules/react-native/package.json',
+  ));
+  const latestRelease = await getLatestRelease(currentVersion);
+
+  if (latestRelease) {
+    printNewRelease(latestRelease, currentVersion);
+  }
+
   [...commands, ...ctx.commands].forEach(command => addCommand(command, ctx));
 
   commander.parse(process.argv);
@@ -187,16 +199,6 @@ async function setupAndRun() {
   }
 
   logger.setVerbose(commander.verbose);
-
-  const {version: currentVersion} = require(path.join(
-    ctx.root,
-    'node_modules/react-native/package.json',
-  ));
-  const latestRelease = await getLatestRelease(currentVersion);
-
-  if (latestRelease) {
-    printNewRelease(latestRelease, currentVersion);
-  }
 }
 
 export default {

From 8956aaa8446c9de698cc58dffb159824754f2f43 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 30 Mar 2019 20:50:21 +0100
Subject: [PATCH 10/20] Check for new releases against rn-diff-purge

---
 .../tools/releaseChecker/getLatestRelease.js  | 123 +++++++++---------
 .../tools/releaseChecker/printNewRelease.js   |   8 +-
 .../releaseChecker/releaseCacheManager.js     |   2 +-
 3 files changed, 67 insertions(+), 66 deletions(-)

diff --git a/packages/cli/src/tools/releaseChecker/getLatestRelease.js b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
index 16f85db24..93d43e508 100644
--- a/packages/cli/src/tools/releaseChecker/getLatestRelease.js
+++ b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
@@ -7,13 +7,8 @@ import logger from '../logger';
 import cacheManager from './releaseCacheManager';
 
 export type Release = {
-  tag_name: string,
-  html_url: string,
-  draft: boolean,
-  prerelease: boolean,
-  created_at: string,
-  published_at: string,
-  body: string,
+  version: string,
+  changelogUrl: string,
 };
 
 /**
@@ -21,84 +16,91 @@ export type Release = {
  * if it exists, returns the release data.
  *
  * If the latest release is not newer or if it's a prerelease, the function
- * will return null.
+ * will return undefined.
  */
 export default (async function(currentVersion: string) {
   logger.debug('Checking for a newer version of React Native');
   try {
     logger.debug(`Current version: ${currentVersion}`);
 
-    const eTag = cacheManager.get('eTag');
-    const release: Release = cacheManager.get('release');
+    const cachedLatest: string = cacheManager.get('latestVersion');
 
-    if (release) {
-      logger.debug(
-        `Cached release version: ${semver.coerce(release.tag_name)}`,
-      );
+    if (cachedLatest) {
+      logger.debug(`Cached release version: ${cachedLatest}`);
     }
 
     logger.debug('Checking for newer releases on GitHub');
-    const response: Response = await getLatestRelease(eTag);
+    const eTag = cacheManager.get('eTag');
+    const latestVersion = await getLatestRnDiffPurgeVersion(eTag);
+    logger.debug(`Latest release: ${latestVersion}`);
 
-    let latestRelease;
     if (
-      response.statusCode === 200 &&
-      response.release &&
-      !response.release.prerelease
+      semver.compare(latestVersion, currentVersion) === 1 &&
+      !semver.prerelease(latestVersion)
     ) {
-      latestRelease = response.release;
-      logger.debug(
-        `Remote release version: ${semver.coerce(latestRelease.tag_name)}`,
-      );
-      // Update the cache.
-      cacheManager.set('eTag', response.eTag);
-      cacheManager.set('release', latestRelease);
-    } else {
-      // Response status is 304, meaning that our cached release data
-      // is the most recent release available.
-      logger.debug('Cache is up-to-date with GitHub releases');
-      latestRelease = release;
-    }
-
-    const latestVersion = semver.coerce(latestRelease.tag_name);
-    logger.debug(`Latest stable release: ${latestVersion}`);
-    if (semver.compare(latestVersion, currentVersion) === 1) {
-      return latestRelease;
-    } else {
-      return null;
+      return {
+        version: latestVersion,
+        changelogUrl: buildChangelogUrl(latestVersion),
+      };
     }
   } catch (e) {
     logger.debug(
       'Something went wrong with remote version checking, moving on',
     );
-    return null;
   }
 });
 
+function buildChangelogUrl(version: string) {
+  return `https://github.com/facebook/react-native/releases/tag/v${version}`;
+}
+
+/**
+ * Returns the most recent React Native version available to upgrade to.
+ */
+async function getLatestRnDiffPurgeVersion(eTag: ?string): Promise<string> {
+  const options = {
+    hostname: 'api.github.com',
+    path: '/repos/react-native-community/rn-diff-purge/tags',
+    // https://developer.github.com/v3/#user-agent-required
+    headers: ({'User-Agent': 'React-Native-CLI'}: Headers),
+  };
+
+  if (eTag) {
+    options.headers['If-None-Match'] = eTag;
+  }
+
+  const response = await httpsGet(options);
+
+  // Remote is newer.
+  if (response.statusCode === 200) {
+    const latestVersion = JSON.parse(response.body)[0].name.substring(8);
+
+    // Update cache only if newer release is stable.
+    if (!semver.prerelease(latestVersion)) {
+      logger.debug(`Saving ${response.eTag} to cache`);
+      cacheManager.set('eTag', response.eTag);
+      cacheManager.set('latestVersion', latestVersion);
+    }
+
+    return latestVersion;
+  }
+
+  // Cache is still valid.
+  if (response.statusCode === 304) {
+    return cacheManager.get('latestVersion');
+  }
+
+  // Should be returned only if something went wrong.
+  return '0.0.0';
+}
+
 type Headers = {
   'User-Agent': string,
   [header: string]: string,
 };
 
-type Response = {
-  eTag: string,
-  release: ?Release,
-  statusCode: number,
-};
-
-function getLatestRelease(eTag: ?string) {
-  return new Promise<Response>((resolve, reject) => {
-    const options = {
-      hostname: 'api.github.com',
-      path: '/repos/facebook/react-native/releases/latest',
-      // https://developer.github.com/v3/#user-agent-required
-      headers: ({'User-Agent': 'React-Native-CLI'}: Headers),
-    };
-
-    if (eTag) {
-      options.headers['If-None-Match'] = eTag;
-    }
-
+function httpsGet(options: any) {
+  return new Promise((resolve, reject) => {
     https
       .get(options, result => {
         let body = '';
@@ -110,8 +112,7 @@ function getLatestRelease(eTag: ?string) {
 
         result.on('end', () => {
           resolve({
-            // If status code is 304, then body will be empty.
-            release: body ? JSON.parse(body) : undefined,
+            body,
             eTag: result.headers.etag,
             statusCode: result.statusCode,
           });
diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
index 8311fd14d..2d1ec9bc5 100644
--- a/packages/cli/src/tools/releaseChecker/printNewRelease.js
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -10,17 +10,17 @@ import cacheManager from './releaseCacheManager';
  * Notifies the user that a newer version of React Native is available.
  */
 export default function(latestRelease: Release, currentVersion: string) {
-  const aWeek = 7 * 24 * 60 * 60 * 1000; // 7 days.
+  const aWeek = 7 * 24 * 60 * 60 * 1000;
 
   const lastChecked = cacheManager.get('lastChecked');
   const now = new Date();
   if (!lastChecked || now - new Date(lastChecked) > aWeek) {
     logger.info(
       'Your current version of React Native is out of date. ' +
-        `The latest version is ${latestRelease.tag_name}, ` +
-        `while you're on v${currentVersion}`,
+        `The latest version is ${latestRelease.version}, ` +
+        `while you're on ${currentVersion}`,
     );
-    logger.info(`Changelog: ${chalk.underline(latestRelease.html_url)}`);
+    logger.info(`Changelog: ${chalk.underline(latestRelease.changelogUrl)}`);
     logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
 
     cacheManager.set('lastChecked', now.toISOString());
diff --git a/packages/cli/src/tools/releaseChecker/releaseCacheManager.js b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
index e349f2252..8ec486088 100644
--- a/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
+++ b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
@@ -5,7 +5,7 @@ import path from 'path';
 import fs from 'fs';
 import logger from '../logger';
 
-type ReleaseCacheKey = 'eTag' | 'release' | 'lastChecked';
+type ReleaseCacheKey = 'eTag' | 'lastChecked' | 'latestVersion';
 
 function loadCache(): ?Object {
   try {

From 2b923ad976378842f8a799486fd247ed93013f1a Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 30 Mar 2019 20:56:22 +0100
Subject: [PATCH 11/20] Improve logging for printNewRelease

---
 packages/cli/src/tools/releaseChecker/printNewRelease.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
index 2d1ec9bc5..cc98d88f3 100644
--- a/packages/cli/src/tools/releaseChecker/printNewRelease.js
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -24,5 +24,10 @@ export default function(latestRelease: Release, currentVersion: string) {
     logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
 
     cacheManager.set('lastChecked', now.toISOString());
+  } else {
+    logger.debug(
+      `Last time notified a newer version: ${now.toDateString()}, ` +
+        'skipping this time',
+    );
   }
 }

From 34accf0ae50a114e4a4a34222ca883e608a1f9c3 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 30 Mar 2019 21:03:27 +0100
Subject: [PATCH 12/20] Safeguard new release check in cliEntry

---
 packages/cli/src/cliEntry.js | 30 +++++++++++++++++++-----------
 1 file changed, 19 insertions(+), 11 deletions(-)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index 1d0c9a41c..7ea9371df 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -19,7 +19,6 @@ import init from './commands/init/initCompat';
 import assertRequiredOptions from './tools/assertRequiredOptions';
 import {logger} from '@react-native-community/cli-tools';
 import {setProjectDir} from './tools/packageManager';
-import findPlugins from './tools/findPlugins';
 import getLatestRelease from './tools/releaseChecker/getLatestRelease';
 import printNewRelease from './tools/releaseChecker/printNewRelease';
 import pkgJson from '../package.json';
@@ -171,16 +170,25 @@ async function setupAndRun() {
 
   setProjectDir(ctx.root);
 
-  // New version check must occur before `commander.parse` to ensure that
-  // the message of a new release happens before anything else.
-  const {version: currentVersion} = require(path.join(
-    ctx.root,
-    'node_modules/react-native/package.json',
-  ));
-  const latestRelease = await getLatestRelease(currentVersion);
-
-  if (latestRelease) {
-    printNewRelease(latestRelease, currentVersion);
+  try {
+    // New version check must occur before `commander.parse` to ensure that
+    // the message of a new release happens before anything else.
+    const {version: currentVersion} = require(path.join(
+      ctx.root,
+      'node_modules/react-native/package.json',
+    ));
+    const latestRelease = await getLatestRelease(currentVersion);
+
+    if (latestRelease) {
+      printNewRelease(latestRelease, currentVersion);
+    }
+  } catch (_ignored) {
+    // We let the flow continue as this component is not vital for the rest of
+    // the CLI.
+    logger.debug(
+      'Cannot detect current version of React Native, ' +
+        'skipping check for a newer release',
+    );
   }
 
   [...commands, ...ctx.commands].forEach(command => addCommand(command, ctx));

From dc1c4961010b93325b865415ff7bced971f00a63 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Tue, 14 May 2019 11:55:44 +0200
Subject: [PATCH 13/20] Log getLatestRelease error in verbose mode

---
 packages/cli/src/tools/releaseChecker/getLatestRelease.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/cli/src/tools/releaseChecker/getLatestRelease.js b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
index 93d43e508..51663699a 100644
--- a/packages/cli/src/tools/releaseChecker/getLatestRelease.js
+++ b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
@@ -47,6 +47,7 @@ export default (async function(currentVersion: string) {
     logger.debug(
       'Something went wrong with remote version checking, moving on',
     );
+    logger.debug(e);
   }
 });
 

From 83463fac46d3b9d808b9e7d1a6dc4b9038c710e5 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Tue, 14 May 2019 12:00:00 +0200
Subject: [PATCH 14/20] Name printNewRelease function

---
 packages/cli/src/tools/releaseChecker/printNewRelease.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
index cc98d88f3..322fbde0d 100644
--- a/packages/cli/src/tools/releaseChecker/printNewRelease.js
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -9,7 +9,10 @@ import cacheManager from './releaseCacheManager';
 /**
  * Notifies the user that a newer version of React Native is available.
  */
-export default function(latestRelease: Release, currentVersion: string) {
+export default function printNewRelease(
+  latestRelease: Release,
+  currentVersion: string,
+) {
   const aWeek = 7 * 24 * 60 * 60 * 1000;
 
   const lastChecked = cacheManager.get('lastChecked');

From 733c1dca2e0e852c63e153d3afbdb3d085f9275f Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Tue, 14 May 2019 12:07:20 +0200
Subject: [PATCH 15/20] Use resolveNodeModuleDir helper

---
 packages/cli/src/cliEntry.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index 7ea9371df..63f21bd65 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -19,6 +19,7 @@ import init from './commands/init/initCompat';
 import assertRequiredOptions from './tools/assertRequiredOptions';
 import {logger} from '@react-native-community/cli-tools';
 import {setProjectDir} from './tools/packageManager';
+import resolveNodeModuleDir from './tools/config/resolveNodeModuleDir';
 import getLatestRelease from './tools/releaseChecker/getLatestRelease';
 import printNewRelease from './tools/releaseChecker/printNewRelease';
 import pkgJson from '../package.json';
@@ -174,8 +175,8 @@ async function setupAndRun() {
     // New version check must occur before `commander.parse` to ensure that
     // the message of a new release happens before anything else.
     const {version: currentVersion} = require(path.join(
-      ctx.root,
-      'node_modules/react-native/package.json',
+      resolveNodeModuleDir(ctx.root, 'react-native'),
+      'package.json',
     ));
     const latestRelease = await getLatestRelease(currentVersion);
 

From 953a5c0fb14c7852b9a9d22e97c7984099f47c2b Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Tue, 14 May 2019 15:13:10 +0200
Subject: [PATCH 16/20] Check for new release after setupAndRun

---
 packages/cli/src/cliEntry.js | 43 +++++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 20 deletions(-)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index 63f21bd65..3aff3e471 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -142,6 +142,7 @@ const addCommand = (command: CommandT, ctx: ConfigT) => {
 async function run() {
   try {
     await setupAndRun();
+    checkForNewRelease();
   } catch (e) {
     handleError(e);
   }
@@ -171,9 +172,27 @@ async function setupAndRun() {
 
   setProjectDir(ctx.root);
 
+  [...commands, ...ctx.commands].forEach(command => addCommand(command, ctx));
+
+  commander.parse(process.argv);
+
+  if (commander.rawArgs.length === 2) {
+    commander.outputHelp();
+  }
+
+  // We handle --version as a special case like this because both `commander`
+  // and `yargs` append it to every command and we don't want to do that.
+  // E.g. outside command `init` has --version flag and we want to preserve it.
+  if (commander.args.length === 0 && commander.version === true) {
+    console.log(pkgJson.version);
+  }
+
+  logger.setVerbose(commander.verbose);
+}
+
+async function checkForNewRelease() {
   try {
-    // New version check must occur before `commander.parse` to ensure that
-    // the message of a new release happens before anything else.
+    const ctx = loadConfig();
     const {version: currentVersion} = require(path.join(
       resolveNodeModuleDir(ctx.root, 'react-native'),
       'package.json',
@@ -183,31 +202,15 @@ async function setupAndRun() {
     if (latestRelease) {
       printNewRelease(latestRelease, currentVersion);
     }
-  } catch (_ignored) {
+  } catch (e) {
     // We let the flow continue as this component is not vital for the rest of
     // the CLI.
     logger.debug(
       'Cannot detect current version of React Native, ' +
         'skipping check for a newer release',
     );
+    logger.debug(e);
   }
-
-  [...commands, ...ctx.commands].forEach(command => addCommand(command, ctx));
-
-  commander.parse(process.argv);
-
-  if (commander.rawArgs.length === 2) {
-    commander.outputHelp();
-  }
-
-  // We handle --version as a special case like this because both `commander`
-  // and `yargs` append it to every command and we don't want to do that.
-  // E.g. outside command `init` has --version flag and we want to preserve it.
-  if (commander.args.length === 0 && commander.version === true) {
-    console.log(pkgJson.version);
-  }
-
-  logger.setVerbose(commander.verbose);
 }
 
 export default {

From 56cee5a79ed167effdc581f54f4bc99e5c3034b7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Pierzcha=C5=82a?= <thymikee@gmail.com>
Date: Tue, 14 May 2019 18:34:45 +0200
Subject: [PATCH 17/20] make it run after the command

---
 packages/cli/src/cliEntry.js | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index 3aff3e471..764c06a2c 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -110,16 +110,18 @@ const addCommand = (command: CommandT, ctx: ConfigT) => {
   const cmd = commander
     .command(command.name)
     .description(command.description)
-    .action(function handleAction(...args) {
+    .action(async function handleAction(...args) {
       const passedOptions = this.opts();
       const argv: Array<string> = Array.from(args).slice(0, -1);
 
-      Promise.resolve()
-        .then(() => {
-          assertRequiredOptions(options, passedOptions);
-          return command.func(argv, ctx, passedOptions);
-        })
-        .catch(handleError);
+      try {
+        assertRequiredOptions(options, passedOptions);
+        await command.func(argv, ctx, passedOptions);
+      } catch (error) {
+        handleError(error);
+      } finally {
+        checkForNewRelease();
+      }
     });
 
   cmd.helpInformation = printHelpInformation.bind(
@@ -142,7 +144,6 @@ const addCommand = (command: CommandT, ctx: ConfigT) => {
 async function run() {
   try {
     await setupAndRun();
-    checkForNewRelease();
   } catch (e) {
     handleError(e);
   }

From 41e316ceb2b7eb6d4e7a6f5c6d8a6f121383172a Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 25 May 2019 09:35:50 +0200
Subject: [PATCH 18/20] Move cache age check before network fetch

---
 .../tools/releaseChecker/getLatestRelease.js  |  8 ++++++
 .../tools/releaseChecker/printNewRelease.js   | 27 ++++++-------------
 2 files changed, 16 insertions(+), 19 deletions(-)

diff --git a/packages/cli/src/tools/releaseChecker/getLatestRelease.js b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
index 51663699a..38cf1b1c9 100644
--- a/packages/cli/src/tools/releaseChecker/getLatestRelease.js
+++ b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
@@ -29,6 +29,14 @@ export default (async function(currentVersion: string) {
       logger.debug(`Cached release version: ${cachedLatest}`);
     }
 
+    const aWeek = 7 * 24 * 60 * 60 * 1000;
+    const lastChecked = cacheManager.get('lastChecked');
+    const now = new Date();
+    if (lastChecked && now - new Date(lastChecked) < aWeek) {
+      logger.debug('Cached release is still recent, skipping remote check');
+      return;
+    }
+
     logger.debug('Checking for newer releases on GitHub');
     const eTag = cacheManager.get('eTag');
     const latestVersion = await getLatestRnDiffPurgeVersion(eTag);
diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
index 322fbde0d..aa56c91d8 100644
--- a/packages/cli/src/tools/releaseChecker/printNewRelease.js
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -13,24 +13,13 @@ export default function printNewRelease(
   latestRelease: Release,
   currentVersion: string,
 ) {
-  const aWeek = 7 * 24 * 60 * 60 * 1000;
+  logger.info(
+    'Your current version of React Native is out of date. ' +
+      `The latest version is ${latestRelease.version}, ` +
+      `while you're on ${currentVersion}`,
+  );
+  logger.info(`Changelog: ${chalk.underline(latestRelease.changelogUrl)}`);
+  logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
 
-  const lastChecked = cacheManager.get('lastChecked');
-  const now = new Date();
-  if (!lastChecked || now - new Date(lastChecked) > aWeek) {
-    logger.info(
-      'Your current version of React Native is out of date. ' +
-        `The latest version is ${latestRelease.version}, ` +
-        `while you're on ${currentVersion}`,
-    );
-    logger.info(`Changelog: ${chalk.underline(latestRelease.changelogUrl)}`);
-    logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
-
-    cacheManager.set('lastChecked', now.toISOString());
-  } else {
-    logger.debug(
-      `Last time notified a newer version: ${now.toDateString()}, ` +
-        'skipping this time',
-    );
-  }
+  cacheManager.set('lastChecked', new Date().toISOString());
 }

From 043640f1f875aada2103ff9e6a69aac3732dac29 Mon Sep 17 00:00:00 2001
From: Matei Radu <matei.radu.92@gmail.com>
Date: Sat, 25 May 2019 10:13:19 +0200
Subject: [PATCH 19/20] Create cache dir in os.homedir()

---
 .../releaseChecker/releaseCacheManager.js     | 25 +++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/packages/cli/src/tools/releaseChecker/releaseCacheManager.js b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
index 8ec486088..6a90951e4 100644
--- a/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
+++ b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
@@ -3,13 +3,19 @@
  */
 import path from 'path';
 import fs from 'fs';
+import os from 'os';
 import logger from '../logger';
+import loadConfig from '../config';
 
 type ReleaseCacheKey = 'eTag' | 'lastChecked' | 'latestVersion';
 
 function loadCache(): ?Object {
   try {
-    const cacheRaw = fs.readFileSync(path.resolve(__dirname, '.cache'), 'utf8');
+    const {name} = require(path.join(loadConfig().root, 'package.json'));
+    const cacheRaw = fs.readFileSync(
+      path.resolve(getCacheRootPath(), name),
+      'utf8',
+    );
     const cache = JSON.parse(cacheRaw);
     return cache;
   } catch (e) {
@@ -22,12 +28,27 @@ function loadCache(): ?Object {
 }
 
 function saveCache(cache: Object) {
+  const {name} = require(path.join(loadConfig().root, 'package.json'));
   fs.writeFileSync(
-    path.resolve(__dirname, '.cache'),
+    path.resolve(getCacheRootPath(), name),
     JSON.stringify(cache, null, 2),
   );
 }
 
+/**
+ * Returns the path string of `$HOME/.react-native-cli`.
+ *
+ * In case it doesn't exist, it will be created.
+ */
+function getCacheRootPath() {
+  const cachePath = path.resolve(os.homedir(), '.react-native-cli', 'cache');
+  if (!fs.existsSync(cachePath)) {
+    fs.mkdirSync(cachePath);
+  }
+
+  return cachePath;
+}
+
 function get(key: ReleaseCacheKey): any {
   const cache = loadCache();
   if (cache) {

From 7e50deed7fd2368094a61bee5f915a3b011bd5ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Pierzcha=C5=82a?= <thymikee@gmail.com>
Date: Thu, 6 Jun 2019 12:45:50 +0200
Subject: [PATCH 20/20] avoid loading config twice

---
 packages/cli/src/cliEntry.js                  | 12 ++++-----
 .../tools/releaseChecker/getLatestRelease.js  | 26 ++++++++++++-------
 .../tools/releaseChecker/printNewRelease.js   | 13 +++++-----
 .../releaseChecker/releaseCacheManager.js     | 23 ++++++++--------
 packages/cli/src/tools/walk.js                |  4 +--
 5 files changed, 42 insertions(+), 36 deletions(-)

diff --git a/packages/cli/src/cliEntry.js b/packages/cli/src/cliEntry.js
index 764c06a2c..1798f391e 100644
--- a/packages/cli/src/cliEntry.js
+++ b/packages/cli/src/cliEntry.js
@@ -120,7 +120,7 @@ const addCommand = (command: CommandT, ctx: ConfigT) => {
       } catch (error) {
         handleError(error);
       } finally {
-        checkForNewRelease();
+        checkForNewRelease(ctx.root);
       }
     });
 
@@ -191,17 +191,17 @@ async function setupAndRun() {
   logger.setVerbose(commander.verbose);
 }
 
-async function checkForNewRelease() {
+async function checkForNewRelease(root: string) {
   try {
-    const ctx = loadConfig();
     const {version: currentVersion} = require(path.join(
-      resolveNodeModuleDir(ctx.root, 'react-native'),
+      resolveNodeModuleDir(root, 'react-native'),
       'package.json',
     ));
-    const latestRelease = await getLatestRelease(currentVersion);
+    const {name} = require(path.join(root, 'package.json'));
+    const latestRelease = await getLatestRelease(name, currentVersion);
 
     if (latestRelease) {
-      printNewRelease(latestRelease, currentVersion);
+      printNewRelease(name, latestRelease, currentVersion);
     }
   } catch (e) {
     // We let the flow continue as this component is not vital for the rest of
diff --git a/packages/cli/src/tools/releaseChecker/getLatestRelease.js b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
index 38cf1b1c9..debf37f0e 100644
--- a/packages/cli/src/tools/releaseChecker/getLatestRelease.js
+++ b/packages/cli/src/tools/releaseChecker/getLatestRelease.js
@@ -18,19 +18,22 @@ export type Release = {
  * If the latest release is not newer or if it's a prerelease, the function
  * will return undefined.
  */
-export default (async function(currentVersion: string) {
+export default async function getLatestRelease(
+  name: string,
+  currentVersion: string,
+) {
   logger.debug('Checking for a newer version of React Native');
   try {
     logger.debug(`Current version: ${currentVersion}`);
 
-    const cachedLatest: string = cacheManager.get('latestVersion');
+    const cachedLatest = cacheManager.get(name, 'latestVersion');
 
     if (cachedLatest) {
       logger.debug(`Cached release version: ${cachedLatest}`);
     }
 
     const aWeek = 7 * 24 * 60 * 60 * 1000;
-    const lastChecked = cacheManager.get('lastChecked');
+    const lastChecked = cacheManager.get(name, 'lastChecked');
     const now = new Date();
     if (lastChecked && now - new Date(lastChecked) < aWeek) {
       logger.debug('Cached release is still recent, skipping remote check');
@@ -38,8 +41,8 @@ export default (async function(currentVersion: string) {
     }
 
     logger.debug('Checking for newer releases on GitHub');
-    const eTag = cacheManager.get('eTag');
-    const latestVersion = await getLatestRnDiffPurgeVersion(eTag);
+    const eTag = cacheManager.get(name, 'eTag');
+    const latestVersion = await getLatestRnDiffPurgeVersion(name, eTag);
     logger.debug(`Latest release: ${latestVersion}`);
 
     if (
@@ -57,7 +60,7 @@ export default (async function(currentVersion: string) {
     );
     logger.debug(e);
   }
-});
+}
 
 function buildChangelogUrl(version: string) {
   return `https://github.com/facebook/react-native/releases/tag/v${version}`;
@@ -66,7 +69,7 @@ function buildChangelogUrl(version: string) {
 /**
  * Returns the most recent React Native version available to upgrade to.
  */
-async function getLatestRnDiffPurgeVersion(eTag: ?string): Promise<string> {
+async function getLatestRnDiffPurgeVersion(name: string, eTag: ?string) {
   const options = {
     hostname: 'api.github.com',
     path: '/repos/react-native-community/rn-diff-purge/tags',
@@ -87,8 +90,8 @@ async function getLatestRnDiffPurgeVersion(eTag: ?string): Promise<string> {
     // Update cache only if newer release is stable.
     if (!semver.prerelease(latestVersion)) {
       logger.debug(`Saving ${response.eTag} to cache`);
-      cacheManager.set('eTag', response.eTag);
-      cacheManager.set('latestVersion', latestVersion);
+      cacheManager.set(name, 'eTag', response.eTag);
+      cacheManager.set(name, 'latestVersion', latestVersion);
     }
 
     return latestVersion;
@@ -96,7 +99,10 @@ async function getLatestRnDiffPurgeVersion(eTag: ?string): Promise<string> {
 
   // Cache is still valid.
   if (response.statusCode === 304) {
-    return cacheManager.get('latestVersion');
+    const latestVersion = cacheManager.get(name, 'latestVersion');
+    if (latestVersion) {
+      return latestVersion;
+    }
   }
 
   // Should be returned only if something went wrong.
diff --git a/packages/cli/src/tools/releaseChecker/printNewRelease.js b/packages/cli/src/tools/releaseChecker/printNewRelease.js
index aa56c91d8..cfababab7 100644
--- a/packages/cli/src/tools/releaseChecker/printNewRelease.js
+++ b/packages/cli/src/tools/releaseChecker/printNewRelease.js
@@ -10,16 +10,17 @@ import cacheManager from './releaseCacheManager';
  * Notifies the user that a newer version of React Native is available.
  */
 export default function printNewRelease(
+  name: string,
   latestRelease: Release,
   currentVersion: string,
 ) {
   logger.info(
-    'Your current version of React Native is out of date. ' +
-      `The latest version is ${latestRelease.version}, ` +
-      `while you're on ${currentVersion}`,
+    `React Native v${
+      latestRelease.version
+    } is now available (your project is running on v${currentVersion}).`,
   );
-  logger.info(`Changelog: ${chalk.underline(latestRelease.changelogUrl)}`);
-  logger.info(`To upgrade, run ${chalk.bold('react-native upgrade')}`);
+  logger.info(`Changelog: ${chalk.dim.underline(latestRelease.changelogUrl)}.`);
+  logger.info(`To upgrade, run "${chalk.bold('react-native upgrade')}".`);
 
-  cacheManager.set('lastChecked', new Date().toISOString());
+  cacheManager.set(name, 'lastChecked', new Date().toISOString());
 }
diff --git a/packages/cli/src/tools/releaseChecker/releaseCacheManager.js b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
index 6a90951e4..193af6c33 100644
--- a/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
+++ b/packages/cli/src/tools/releaseChecker/releaseCacheManager.js
@@ -4,14 +4,14 @@
 import path from 'path';
 import fs from 'fs';
 import os from 'os';
+import mkdirp from 'mkdirp';
 import logger from '../logger';
-import loadConfig from '../config';
 
 type ReleaseCacheKey = 'eTag' | 'lastChecked' | 'latestVersion';
+type Cache = {[key: ReleaseCacheKey]: string};
 
-function loadCache(): ?Object {
+function loadCache(name: string): ?Cache {
   try {
-    const {name} = require(path.join(loadConfig().root, 'package.json'));
     const cacheRaw = fs.readFileSync(
       path.resolve(getCacheRootPath(), name),
       'utf8',
@@ -21,14 +21,13 @@ function loadCache(): ?Object {
   } catch (e) {
     if (e.code === 'ENOENT') {
       // Create cache file since it doesn't exist.
-      saveCache({});
+      saveCache(name, {});
     }
     logger.debug('No release cache found');
   }
 }
 
-function saveCache(cache: Object) {
-  const {name} = require(path.join(loadConfig().root, 'package.json'));
+function saveCache(name: string, cache: Cache) {
   fs.writeFileSync(
     path.resolve(getCacheRootPath(), name),
     JSON.stringify(cache, null, 2),
@@ -43,24 +42,24 @@ function saveCache(cache: Object) {
 function getCacheRootPath() {
   const cachePath = path.resolve(os.homedir(), '.react-native-cli', 'cache');
   if (!fs.existsSync(cachePath)) {
-    fs.mkdirSync(cachePath);
+    mkdirp(cachePath);
   }
 
   return cachePath;
 }
 
-function get(key: ReleaseCacheKey): any {
-  const cache = loadCache();
+function get(name: string, key: ReleaseCacheKey): ?string {
+  const cache = loadCache(name);
   if (cache) {
     return cache[key];
   }
 }
 
-function set(key: ReleaseCacheKey, value: any) {
-  const cache = loadCache();
+function set(name: string, key: ReleaseCacheKey, value: string) {
+  const cache = loadCache(name);
   if (cache) {
     cache[key] = value;
-    saveCache(cache);
+    saveCache(name, cache);
   }
 }
 
diff --git a/packages/cli/src/tools/walk.js b/packages/cli/src/tools/walk.js
index 5fdc88848..fb0a81eba 100644
--- a/packages/cli/src/tools/walk.js
+++ b/packages/cli/src/tools/walk.js
@@ -4,13 +4,13 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @format
+ * @flow
  */
 
 import fs from 'fs';
 import path from 'path';
 
-function walk(current) {
+function walk(current: string) {
   if (!fs.lstatSync(current).isDirectory()) {
     return [current];
   }