Report size of app bundles on PRs (#28041)

Summary: Pull Request resolved: https://github.com/facebook/react-native/pull/28041 Report size of app bundles on PRs. See [React Native Benchmark Suite](https://github.com/react-native-community/discussions-and-proposals/issues/186) for further discussion. ## Changelog [Internal] [Added] - Report size of app bundles on PRs Pull Request resolved: https://github.com/facebook/react-native/pull/28019 Test Plan: PRs should start seeing comments from a bot with app bundle sizes, given that they got built successfully. Reviewed By: cpojer Differential Revision: D19859187 Pulled By: hramos fbshipit-source-id: 3920dc60e6fd073928388e6ae52fc2ba1bc745ac
2025-11-01 09:14:26 +00:00 · 2020-02-12 22:21:00 -08:00
parent 619d5d60df
commit 1b562929dc
5 changed files with 293 additions and 34 deletions
@@ -94,6 +94,12 @@ commands:
            - ~/okbuck
          key: v3-buck-v2019.01.10.01-{{ checksum "scripts/circleci/buck_fetch.sh" }}

+  install_github_bot_deps:
+    steps:
+      - run:
+          name: Install GitHub bot dependencies
+          command: cd bots && yarn install --non-interactive --cache-folder ~/.cache/yarn
+
  brew_install:
    parameters:
      package:
@@ -217,11 +223,11 @@ jobs:
          checkout_type: node
      - run_yarn

+      - install_github_bot_deps
+
      - run:
-          name: Install dependencies
-          command: |
-            sudo apt update && sudo apt install -y shellcheck jq
-            cd bots && yarn install --non-interactive --cache-folder ~/.cache/yarn
+          name: Install additional GitHub bot dependencies
+          command: sudo apt update && sudo apt install -y shellcheck jq

      - run:
          name: Run linters against modified files (analysis-bot)
@@ -355,6 +361,10 @@ jobs:
  # Runs iOS end-to-end tests
  test_ios_e2e:
    executor: reactnativeios
+    # The public github tokens are publicly visible by design
+    environment:
+      - PUBLIC_GITHUB_TOKEN_A: "78a72af35445ca3f8180"
+      - PUBLIC_GITHUB_TOKEN_B: "b1a98e0bbd56ff1ccba1"
    steps:
      - restore_cache_checkout:
          checkout_type: ios
@@ -381,6 +391,7 @@ jobs:
                package: applesimutils
            - brew_install:
                package: watchman
+
      # Configure Watchman
      - run: touch .watchmanconfig

@@ -400,6 +411,12 @@ jobs:
          command: yarn run build-ios-e2e && yarn run test-ios-e2e
          when: always

+      - install_github_bot_deps
+      - run:
+          name: Report size of RNTester.app
+          command: GITHUB_TOKEN="$PUBLIC_GITHUB_TOKEN_A""$PUBLIC_GITHUB_TOKEN_B" scripts/circleci/report-bundle-size.sh ios
+          when: always
+
      - run:
          name: Run iOS End-to-End Tests
          command: |
@@ -440,6 +457,10 @@ jobs:
  # Run Android tests
  test_android:
    executor: reactnativeandroid
+    # The public github tokens are publicly visible by design
+    environment:
+      - PUBLIC_GITHUB_TOKEN_A: "78a72af35445ca3f8180"
+      - PUBLIC_GITHUB_TOKEN_B: "b1a98e0bbd56ff1ccba1"
    steps:
      - restore_cache_checkout:
          checkout_type: android
@@ -511,6 +532,11 @@ jobs:
          name: Build Android RNTester App
          command: ./gradlew RNTester:android:app:assembleRelease

+      - install_github_bot_deps
+      - run:
+          name: Report size of RNTester.apk
+          command: GITHUB_TOKEN="$PUBLIC_GITHUB_TOKEN_A""$PUBLIC_GITHUB_TOKEN_B" scripts/circleci/report-bundle-size.sh android
+
      # Collect Results
      - run:
          name: Collect Test Results
@@ -0,0 +1,48 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+'use strict';
+
+const {GITHUB_TOKEN, GITHUB_OWNER, GITHUB_REPO, GITHUB_PR_NUMBER} = process.env;
+if (!GITHUB_TOKEN || !GITHUB_OWNER || !GITHUB_REPO || !GITHUB_PR_NUMBER) {
+  if (!GITHUB_TOKEN) {
+    console.error(
+      'Missing GITHUB_TOKEN. Example: 5fd88b964fa214c4be2b144dc5af5d486a2f8c1e. PR feedback cannot be provided on GitHub without a valid token.',
+    );
+  }
+  if (!GITHUB_OWNER) {
+    console.error('Missing GITHUB_OWNER. Example: facebook');
+  }
+  if (!GITHUB_REPO) {
+    console.error('Missing GITHUB_REPO. Example: react-native');
+  }
+  if (!GITHUB_PR_NUMBER) {
+    console.error(
+      'Missing GITHUB_PR_NUMBER. Example: 4687. PR feedback cannot be provided on GitHub without a valid pull request number.',
+    );
+  }
+  process.exit(1);
+}
+
+const {[2]: body} = process.argv;
+if (!body) {
+  process.exit(0);
+}
+
+const octokit = require('@octokit/rest')();
+octokit.authenticate({
+  type: 'oauth',
+  token: GITHUB_TOKEN,
+});
+octokit.issues.createComment({
+  owner: GITHUB_OWNER,
+  repo: GITHUB_REPO,
+  issue_number: GITHUB_PR_NUMBER,
+  body,
+});
@@ -9,6 +9,6 @@
    "minimatch": "^3.0.4"
  },
  "dependencies": {
-    "@octokit/rest": "15.18.0"
+    "@octokit/rest": "^16.43.0"
  }
 }
@@ -10,6 +10,13 @@
    core-js "^2.5.7"
    regenerator-runtime "^0.12.0"

+"@octokit/auth-token@^2.4.0":
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/@octokit/auth-token/-/auth-token-2.4.0.tgz#b64178975218b99e4dfe948253f0673cbbb59d9f"
+  integrity sha512-eoOVMjILna7FVQf96iWc3+ZtE/ZT6y8ob8ZzcqKY1ibSQCnu4O/B7pJvzMx5cyZ/RjAff6DAdEb0O0Cjcxidkg==
+  dependencies:
+    "@octokit/types" "^2.0.0"
+
 "@octokit/endpoint@^3.1.1":
  version "3.1.2"
  resolved "https://registry.yarnpkg.com/@octokit/endpoint/-/endpoint-3.1.2.tgz#22b5aa8596482fbefc3f1ce22c24ad217aed60fa"
@@ -20,6 +27,44 @@
    universal-user-agent "^2.0.1"
    url-template "^2.0.8"

+"@octokit/endpoint@^5.5.0":
+  version "5.5.2"
+  resolved "https://registry.yarnpkg.com/@octokit/endpoint/-/endpoint-5.5.2.tgz#ed19d01fe85ac58bc2b774661658f9e5429b8164"
+  integrity sha512-ICDcRA0C2vtTZZGud1nXRrBLXZqFayodXAKZfo3dkdcLNqcHsgaz3YSTupbURusYeucSVRjjG+RTcQhx6HPPcg==
+  dependencies:
+    "@octokit/types" "^2.0.0"
+    is-plain-object "^3.0.0"
+    universal-user-agent "^4.0.0"
+
+"@octokit/plugin-paginate-rest@^1.1.1":
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-paginate-rest/-/plugin-paginate-rest-1.1.2.tgz#004170acf8c2be535aba26727867d692f7b488fc"
+  integrity sha512-jbsSoi5Q1pj63sC16XIUboklNw+8tL9VOnJsWycWYR78TKss5PVpIPb1TUUcMQ+bBh7cY579cVAWmf5qG+dw+Q==
+  dependencies:
+    "@octokit/types" "^2.0.1"
+
+"@octokit/plugin-request-log@^1.0.0":
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-request-log/-/plugin-request-log-1.0.0.tgz#eef87a431300f6148c39a7f75f8cfeb218b2547e"
+  integrity sha512-ywoxP68aOT3zHCLgWZgwUJatiENeHE7xJzYjfz8WI0goynp96wETBF+d95b8g/uL4QmS6owPVlaxiz3wyMAzcw==
+
+"@octokit/plugin-rest-endpoint-methods@2.4.0":
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/@octokit/plugin-rest-endpoint-methods/-/plugin-rest-endpoint-methods-2.4.0.tgz#3288ecf5481f68c494dd0602fc15407a59faf61e"
+  integrity sha512-EZi/AWhtkdfAYi01obpX0DF7U6b1VRr30QNQ5xSFPITMdLSfhcBqjamE3F+sKcxPbD7eZuMHu3Qkk2V+JGxBDQ==
+  dependencies:
+    "@octokit/types" "^2.0.1"
+    deprecation "^2.3.1"
+
+"@octokit/request-error@^1.0.1", "@octokit/request-error@^1.0.2":
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/@octokit/request-error/-/request-error-1.2.1.tgz#ede0714c773f32347576c25649dc013ae6b31801"
+  integrity sha512-+6yDyk1EES6WK+l3viRDElw96MvwfJxCt45GvmjDUKWjYIb3PJZQkq3i46TwGwoPD4h8NmTrENmtyA1FwbmhRA==
+  dependencies:
+    "@octokit/types" "^2.0.0"
+    deprecation "^2.0.0"
+    once "^1.4.0"
+
 "@octokit/request@2.3.0":
  version "2.3.0"
  resolved "https://registry.yarnpkg.com/@octokit/request/-/request-2.3.0.tgz#da2672308bcf0b9376ef66f51bddbe5eb87cc00a"
@@ -30,20 +75,19 @@
    node-fetch "^2.3.0"
    universal-user-agent "^2.0.1"

-"@octokit/rest@15.18.0":
-  version "15.18.0"
-  resolved "https://registry.yarnpkg.com/@octokit/rest/-/rest-15.18.0.tgz#e6de702b57dec94c71e806f1cff0ecb9725b3054"
-  integrity sha512-D1dDJMbvT4dok9++vc8uwCr92ndadwfz6vHK+IklzBHKSsuLlhpv2/dzx97Y4aRlm0t74LeXKDp4j0b4M2vmQw==
+"@octokit/request@^5.2.0":
+  version "5.3.1"
+  resolved "https://registry.yarnpkg.com/@octokit/request/-/request-5.3.1.tgz#3a1ace45e6f88b1be4749c5da963b3a3b4a2f120"
+  integrity sha512-5/X0AL1ZgoU32fAepTfEoggFinO3rxsMLtzhlUX+RctLrusn/CApJuGFCd0v7GMFhF+8UiCsTTfsu7Fh1HnEJg==
  dependencies:
-    before-after-hook "^1.1.0"
-    btoa-lite "^1.0.0"
-    debug "^3.1.0"
-    http-proxy-agent "^2.1.0"
-    https-proxy-agent "^2.2.0"
-    lodash "^4.17.4"
-    node-fetch "^2.1.1"
-    universal-user-agent "^2.0.0"
-    url-template "^2.0.8"
+    "@octokit/endpoint" "^5.5.0"
+    "@octokit/request-error" "^1.0.1"
+    "@octokit/types" "^2.0.0"
+    deprecation "^2.0.0"
+    is-plain-object "^3.0.0"
+    node-fetch "^2.3.0"
+    once "^1.4.0"
+    universal-user-agent "^4.0.0"

 "@octokit/rest@^16.14.1":
  version "16.15.0"
@@ -60,6 +104,40 @@
    universal-user-agent "^2.0.0"
    url-template "^2.0.8"

+"@octokit/rest@^16.43.0":
+  version "16.43.1"
+  resolved "https://registry.yarnpkg.com/@octokit/rest/-/rest-16.43.1.tgz#3b11e7d1b1ac2bbeeb23b08a17df0b20947eda6b"
+  integrity sha512-gfFKwRT/wFxq5qlNjnW2dh+qh74XgTQ2B179UX5K1HYCluioWj8Ndbgqw2PVqa1NnVJkGHp2ovMpVn/DImlmkw==
+  dependencies:
+    "@octokit/auth-token" "^2.4.0"
+    "@octokit/plugin-paginate-rest" "^1.1.1"
+    "@octokit/plugin-request-log" "^1.0.0"
+    "@octokit/plugin-rest-endpoint-methods" "2.4.0"
+    "@octokit/request" "^5.2.0"
+    "@octokit/request-error" "^1.0.2"
+    atob-lite "^2.0.0"
+    before-after-hook "^2.0.0"
+    btoa-lite "^1.0.0"
+    deprecation "^2.0.0"
+    lodash.get "^4.4.2"
+    lodash.set "^4.3.2"
+    lodash.uniq "^4.5.0"
+    octokit-pagination-methods "^1.1.0"
+    once "^1.4.0"
+    universal-user-agent "^4.0.0"
+
+"@octokit/types@^2.0.0", "@octokit/types@^2.0.1":
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/@octokit/types/-/types-2.1.1.tgz#77e80d1b663c5f1f829e5377b728fa3c4fe5a97d"
+  integrity sha512-89LOYH+d/vsbDX785NOfLxTW88GjNd0lWRz1DVPVsZgg9Yett5O+3MOvwo7iHgvUwbFz0mf/yPIjBkUbs4kxoQ==
+  dependencies:
+    "@types/node" ">= 8"
+
+"@types/node@>= 8":
+  version "13.7.1"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-13.7.1.tgz#238eb34a66431b71d2aaddeaa7db166f25971a0d"
+  integrity sha512-Zq8gcQGmn4txQEJeiXo/KiLpon8TzAl0kmKH4zdWctPj05nWwp1ClMdAVEloqrQKfaC48PNLdgN/aVaLqUrluA==
+
 agent-base@4, agent-base@^4.1.0:
  version "4.2.1"
  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.1.tgz#d89e5999f797875674c07d87f260fc41e83e8ca9"
@@ -109,6 +187,11 @@ assign-symbols@^1.0.0:
  resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
  integrity sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=

+atob-lite@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/atob-lite/-/atob-lite-2.0.0.tgz#0fef5ad46f1bd7a8502c65727f0367d5ee43d696"
+  integrity sha1-D+9a1G8b16hQLGVyfwNn1e5D1pY=
+
 atob@^2.1.1:
  version "2.1.2"
  resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
@@ -132,16 +215,16 @@ base@^0.11.1:
    mixin-deep "^1.2.0"
    pascalcase "^0.1.1"

-before-after-hook@^1.1.0:
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-1.4.0.tgz#2b6bf23dca4f32e628fd2747c10a37c74a4b484d"
-  integrity sha512-l5r9ir56nda3qu14nAXIlyq1MmUSs0meCIaFAh8HwkFwP1F8eToOuS3ah2VAHHcY04jaYD7FpJC5JTXHYRbkzg==
-
 before-after-hook@^1.2.0:
  version "1.3.2"
  resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-1.3.2.tgz#7bfbf844ad670aa7a96b5a4e4e15bd74b08ed66b"
  integrity sha512-zyPgY5dgbf99c0uGUjhY4w+mxqEGxPKg9RQDl34VvrVh2bM31lFN+mwR1ZHepq/KA3VCPk1gwJZL6IIJqjLy2w==

+before-after-hook@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/before-after-hook/-/before-after-hook-2.1.0.tgz#b6c03487f44e24200dd30ca5e6a1979c5d2fb635"
+  integrity sha512-IWIbu7pMqyw3EAJHzzHbWa85b6oud/yfKYg5rqB5hNE8CeMi3nX+2C2sj0HswfblST86hpVEOAb9x34NZd6P7A==
+
 brace-expansion@^1.1.7:
  version "1.1.11"
  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -399,6 +482,11 @@ define-property@^2.0.2:
    is-descriptor "^1.0.2"
    isobject "^3.0.1"

+deprecation@^2.0.0, deprecation@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/deprecation/-/deprecation-2.3.1.tgz#6368cbdb40abf3373b525ac87e4a260c3a700919"
+  integrity sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ==
+
 ecdsa-sig-formatter@1.0.10:
  version "1.0.10"
  resolved "https://registry.yarnpkg.com/ecdsa-sig-formatter/-/ecdsa-sig-formatter-1.0.10.tgz#1c595000f04a8897dfb85000892a0f4c33af86c3"
@@ -617,7 +705,7 @@ http-proxy-agent@^2.1.0:
    agent-base "4"
    debug "3.1.0"

-https-proxy-agent@^2.2.0, https-proxy-agent@^2.2.1:
+https-proxy-agent@^2.2.1:
  version "2.2.1"
  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.1.tgz#51552970fa04d723e04c56d04178c3f92592bbc0"
  integrity sha512-HPCTS1LW51bcyMYbxUIOO4HEOlQ1/1qRaFWcyxvwaqUS9TY88aoEuHUY33kuAh1YhVVaDQhLZsnPd+XNARWZlQ==
@@ -729,6 +817,13 @@ is-plain-object@^2.0.1, is-plain-object@^2.0.3, is-plain-object@^2.0.4:
  dependencies:
    isobject "^3.0.1"

+is-plain-object@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-3.0.0.tgz#47bfc5da1b5d50d64110806c199359482e75a928"
+  integrity sha512-tZIpofR+P05k8Aocp7UI/2UTa9lTJSebCXpFFoR9aibpokDj/uXBsJ8luUu0tTVYKkMU6URDUuOfJZ7koewXvg==
+  dependencies:
+    isobject "^4.0.0"
+
 is-stream@^1.1.0:
  version "1.1.0"
  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
@@ -761,6 +856,11 @@ isobject@^3.0.0, isobject@^3.0.1:
  resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
  integrity sha1-TkMekrEalzFjaqH5yNHMvP2reN8=

+isobject@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-4.0.0.tgz#3f1c9155e73b192022a80819bacd0343711697b0"
+  integrity sha512-S/2fF5wH8SJA/kmwr6HYhK/RI/OkhD84k8ntalo0iJjZikgq1XFvR5M8NPT1x5F7fBwCG3qHfnzeP/Vh/ZxCUA==
+
 jsome@^2.3.25:
  version "2.5.0"
  resolved "https://registry.yarnpkg.com/jsome/-/jsome-2.5.0.tgz#5e417eef4341ffeb83ee8bfa9265b36d56fe49ed"
@@ -933,11 +1033,6 @@ lodash.uniq@^4.5.0:
  resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
  integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=

-lodash@^4.17.4:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
-
 lru-cache@^4.0.1:
  version "4.1.5"
  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
@@ -951,6 +1046,11 @@ macos-release@^2.0.0:
  resolved "https://registry.yarnpkg.com/macos-release/-/macos-release-2.0.0.tgz#7dddf4caf79001a851eb4fba7fb6034f251276ab"
  integrity sha512-iCM3ZGeqIzlrH7KxYK+fphlJpCCczyHXc+HhRVbEu9uNTCrzYJjvvtefzeKTCVHd5AP/aD/fzC80JZ4ZP+dQ/A==

+macos-release@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/macos-release/-/macos-release-2.3.0.tgz#eb1930b036c0800adebccd5f17bc4c12de8bb71f"
+  integrity sha512-OHhSbtcviqMPt7yfw5ef5aghS2jzFVKEFyCJndQt2YpSQ9qRVSEv2axSJI1paVThEu+FFGs584h/1YhxjVqajA==
+
 map-cache@^0.2.2:
  version "0.2.2"
  resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
@@ -1056,11 +1156,6 @@ node-cleanup@^2.1.2:
  resolved "https://registry.yarnpkg.com/node-cleanup/-/node-cleanup-2.1.2.tgz#7ac19abd297e09a7f72a71545d951b517e4dde2c"
  integrity sha1-esGavSl+Caf3KnFUXZUbUX5N3iw=

-node-fetch@^2.1.1:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.0.tgz#e633456386d4aa55863f676a7ab0daa8fdecb0fd"
-  integrity sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==
-
 node-fetch@^2.3.0:
  version "2.3.0"
  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.3.0.tgz#1a1d940bbfb916a1d3e0219f037e89e71f8c5fa5"
@@ -1106,6 +1201,13 @@ octokit-pagination-methods@^1.1.0:
  resolved "https://registry.yarnpkg.com/octokit-pagination-methods/-/octokit-pagination-methods-1.1.0.tgz#cf472edc9d551055f9ef73f6e42b4dbb4c80bea4"
  integrity sha512-fZ4qZdQ2nxJvtcasX7Ghl+WlWS/d9IgnBIwFZXVNNZUmzpno91SX5bc5vuxiuKoCtK78XxGGNuSCrDC7xYB3OQ==

+once@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
+  integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
+  dependencies:
+    wrappy "1"
+
 os-locale@^2.0.0:
  version "2.1.0"
  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
@@ -1123,6 +1225,14 @@ os-name@^3.0.0:
    macos-release "^2.0.0"
    windows-release "^3.1.0"

+os-name@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/os-name/-/os-name-3.1.0.tgz#dec19d966296e1cd62d701a5a66ee1ddeae70801"
+  integrity sha512-h8L+8aNjNcMpo/mAIBPn5PXCM16iyPGjHNWo6U1YO8sJTMHtEtyczI6QJnLoplswm6goopQkqc7OAnjhWcugVg==
+  dependencies:
+    macos-release "^2.2.0"
+    windows-release "^3.1.0"
+
 override-require@^1.1.1:
  version "1.1.1"
  resolved "https://registry.yarnpkg.com/override-require/-/override-require-1.1.1.tgz#6ae22fadeb1f850ffb0cf4c20ff7b87e5eb650df"
@@ -1501,6 +1611,13 @@ universal-user-agent@^2.0.0, universal-user-agent@^2.0.1:
  dependencies:
    os-name "^3.0.0"

+universal-user-agent@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/universal-user-agent/-/universal-user-agent-4.0.0.tgz#27da2ec87e32769619f68a14996465ea1cb9df16"
+  integrity sha512-eM8knLpev67iBDizr/YtqkJsF3GK8gzDc6st/WKzrTuPtcsOKW/0IdL4cnMBsU69pOx0otavLWBDGTwg+dB0aA==
+  dependencies:
+    os-name "^3.1.0"
+
 unset-value@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
@@ -1551,6 +1668,11 @@ wrap-ansi@^2.0.0:
    string-width "^1.0.1"
    strip-ansi "^3.0.1"

+wrappy@1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
+  integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
+
 xtend@~4.0.1:
  version "4.0.1"
  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
@@ -0,0 +1,63 @@
+#!/bin/bash
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+function diskusage {
+  # If the environment variable BLOCKSIZE is set, and the -k option is not
+  # specified, the block counts will be displayed in units of that size block.
+  # If BLOCKSIZE is not set, and the -k option is not specified, the block
+  # counts will be displayed in 512-byte blocks.
+  local path=$1
+  du -s "$path" | awk "{size = \$0 * ${BLOCKSIZE:-512}} END {print size}"
+}
+
+function comment {
+  local body=$1
+  GITHUB_OWNER=${CIRCLE_PROJECT_USERNAME:-facebook} \
+  GITHUB_REPO=${CIRCLE_PROJECT_REPONAME:-react-native} \
+  GITHUB_PR_NUMBER="$CIRCLE_PR_NUMBER" \
+  node bots/make-comment.js "$body"
+}
+
+case $1 in
+  "android")
+    # Outputs:
+    #     RNTester (Android/hermes/arm64-v8a): 9437184 bytes
+    #     RNTester (Android/hermes/armeabi-v7a): 9015296 bytes
+    #     RNTester (Android/hermes/x86): 9498624 bytes
+    #     RNTester (Android/hermes/x86_64): 9965568 bytes
+    #     RNTester (Android/jsc/arm64-v8a): 9236480 bytes
+    #     RNTester (Android/jsc/armeabi-v7a): 8814592 bytes
+    #     RNTester (Android/jsc/x86): 9297920 bytes
+    #     RNTester (Android/jsc/x86_64): 9764864 bytes
+    eol=$'\n'
+    size_report=""
+    for engine in hermes jsc; do
+      outputs="RNTester/android/app/build/outputs/apk/$engine/release"
+      if [[ -d "$outputs" ]]; then
+        for arch in arm64-v8a armeabi-v7a x86 x86_64; do
+          apk="$outputs/app-$engine-$arch-release.apk"
+          if [[ -f "$apk" ]]; then
+            size_report+="RNTester (Android/$engine/$arch): $(diskusage "$apk") bytes$eol"
+          else
+            size_report+="RNTester (Android/$engine/$arch): n/a$eol"
+          fi
+        done
+      fi
+    done
+    comment "$size_report"
+    ;;
+  "ios")
+    # Outputs:
+    #     RNTester.app (iOS): 9535488 bytes
+    binary='RNTester/build/Build/Products/Release-iphonesimulator/RNTester.app/RNTester'
+    if [[ -f "$binary" ]]; then
+      comment "RNTester.app (iOS): $(diskusage "$binary") bytes"
+    fi
+    ;;
+  *)
+    echo "Syntax: $0 [android | ios]"
+    exit 1
+esac