Updated scripts and config to replace "master" with "main" branch (#21768)

Author: Brian Vaughn

.circleci/config.yml

@@ -171,9 +171,9 @@ jobs:
       - run:
           name: Download artifacts for base revision
           command: |
-              git fetch origin master
+              git fetch origin main
               cd ./scripts/release && yarn && cd ../../
-              scripts/release/download-experimental-build.js --commit=$(git merge-base HEAD origin/master)
+              scripts/release/download-experimental-build.js --commit=$(git merge-base HEAD origin/main)
               mv ./build2 ./base-build
       - persist_to_workspace:
           root: .
@@ -356,7 +356,7 @@ jobs:
       - run:
           name: Run publish script
           command: |
-            git fetch origin master
+            git fetch origin main
             cd ./scripts/release && yarn && cd ../../
             scripts/release/prepare-release-from-ci.js --skipTests -r << parameters.release_channel >> --commit=<< parameters.commit_sha >>
             cp ./scripts/release/ci-npmrc ~/.npmrc
@@ -414,7 +414,7 @@ workflows:
           filters:
             branches:
               only:
-                - master
+                - main
 
   # New workflow that will replace "stable" and "experimental"
   build_and_test:
@@ -491,14 +491,14 @@ workflows:
           filters:
             branches:
               ignore:
-                - master
+                - main
           requires:
             - setup
       - sizebot:
           filters:
             branches:
               ignore:
-                - master
+                - main
           requires:
             - get_base_build
             - yarn_build_combined
@@ -514,7 +514,7 @@ workflows:
           filters:
             branches:
               only:
-                - master
+                - main
     jobs:
       - setup
       - test_fuzz:
@@ -555,7 +555,7 @@ workflows:
           filters:
             branches:
               only:
-                - master
+                - main
     jobs:
       - setup
       - publish_prerelease:

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,7 +4,7 @@
 
   Before submitting a pull request, please make sure the following is done:
 
-  1. Fork [the repository](https://github.com/facebook/react) and create your branch from `master`.
+  1. Fork [the repository](https://github.com/facebook/react) and create your branch from `main`.
   2. Run `yarn` in the repository root.
   3. If you've fixed a bug or added code that should be tested, add tests!
   4. Ensure the test suite passes (`yarn test`). Tip: `yarn test --watch TestName` is helpful in development.

CHANGELOG.md

@@ -679,7 +679,7 @@ This release was published in a broken state and should be skipped.
 
 ### React Is (New)
 
-* First release of the [new package](https://github.com/facebook/react/tree/master/packages/react-is) that libraries can use to detect different React node types. ([@bvaughn](https://github.com/bvaughn) in [#12199](https://github.com/facebook/react/pull/12199))
+* First release of the [new package](https://github.com/facebook/react/tree/main/packages/react-is) that libraries can use to detect different React node types. ([@bvaughn](https://github.com/bvaughn) in [#12199](https://github.com/facebook/react/pull/12199))
 * Add `ReactIs.isValidElementType()` to help higher-order components validate their inputs. ([@jamesreggio](https://github.com/jamesreggio) in [#12483](https://github.com/facebook/react/pull/12483))
 
 ### React Lifecycles Compat (New)
@@ -688,7 +688,7 @@ This release was published in a broken state and should be skipped.
 
 ### Create Subscription (New)
 
-* First release of the [new package](https://github.com/facebook/react/tree/master/packages/create-subscription) to subscribe to external data sources safely for async rendering. ([@bvaughn](https://github.com/bvaughn) in [#12325](https://github.com/facebook/react/pull/12325))
+* First release of the [new package](https://github.com/facebook/react/tree/main/packages/create-subscription) to subscribe to external data sources safely for async rendering. ([@bvaughn](https://github.com/bvaughn) in [#12325](https://github.com/facebook/react/pull/12325))
 
 ### React Reconciler (Experimental)
 
@@ -819,12 +819,12 @@ Starting with 16.1.0, we will no longer be publishing new releases on Bower. You
 
 ### React Reconciler (Experimental)
 
-* First release of the [new experimental package](https://github.com/facebook/react/blob/master/packages/react-reconciler/README.md) for creating custom renderers. ([@iamdustan](https://github.com/iamdustan) in [#10758](https://github.com/facebook/react/pull/10758))
+* First release of the [new experimental package](https://github.com/facebook/react/blob/main/packages/react-reconciler/README.md) for creating custom renderers. ([@iamdustan](https://github.com/iamdustan) in [#10758](https://github.com/facebook/react/pull/10758))
 * Add support for React DevTools. ([@gaearon](https://github.com/gaearon) in [#11463](https://github.com/facebook/react/pull/11463))
 
 ### React Call Return (Experimental)
 
-* First release of the [new experimental package](https://github.com/facebook/react/tree/master/packages/react-call-return) for parent-child communication. ([@gaearon](https://github.com/gaearon) in [#11364](https://github.com/facebook/react/pull/11364))
+* First release of the [new experimental package](https://github.com/facebook/react/tree/main/packages/react-call-return) for parent-child communication. ([@gaearon](https://github.com/gaearon) in [#11364](https://github.com/facebook/react/pull/11364))
 
 ## 16.0.1 (August 1, 2018)
 

README.md

@@ -1,4 +1,4 @@
-# [React](https://reactjs.org/) · [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/facebook/react/blob/master/LICENSE) [![npm version](https://img.shields.io/npm/v/react.svg?style=flat)](https://www.npmjs.com/package/react) [![CircleCI Status](https://circleci.com/gh/facebook/react.svg?style=shield&circle-token=:circle-token)](https://circleci.com/gh/facebook/react) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://reactjs.org/docs/how-to-contribute.html#your-first-pull-request)
+# [React](https://reactjs.org/) · [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/facebook/react/blob/main/LICENSE) [![npm version](https://img.shields.io/npm/v/react.svg?style=flat)](https://www.npmjs.com/package/react) [![CircleCI Status](https://circleci.com/gh/facebook/react.svg?style=shield&circle-token=:circle-token)](https://circleci.com/gh/facebook/react) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://reactjs.org/docs/how-to-contribute.html#your-first-pull-request)
 
 React is a JavaScript library for building user interfaces.
 

appveyor.yml

@@ -18,7 +18,7 @@ platform:
 
 branches:
   only:
-    - master
+    - main
 
 # Disable Visual Studio build and deploy
 build: off

packages/create-subscription/README.md

@@ -8,7 +8,7 @@ This utility should be used for subscriptions to a single value that are typical
 
 Other cases have **better long-term solutions**:
 * Redux/Flux stores should use the [context API](https://reactjs.org/docs/context.html) instead.
-* I/O subscriptions (e.g. notifications) that update infrequently should use [`react-cache`](https://github.com/facebook/react/blob/master/packages/react-cache/README.md) instead.
+* I/O subscriptions (e.g. notifications) that update infrequently should use [`react-cache`](https://github.com/facebook/react/blob/main/packages/react-cache/README.md) instead.
 * Complex libraries like Relay/Apollo should manage subscriptions manually with the same techniques which this library uses under the hood (as referenced [here](https://gist.github.com/bvaughn/d569177d70b50b58bff69c3c4a5353f3)) in a way that is most optimized for their library usage.
 
 ## Limitations in async mode

packages/eslint-plugin-react-hooks/CHANGELOG.md

@@ -71,4 +71,4 @@
 
 ## 1.x
 
-The 1.x releases aren’t noted in this changelog, but you can find them in the [commit history](https://github.com/facebook/react/commits/master/packages/eslint-plugin-react-hooks).
+The 1.x releases aren’t noted in this changelog, but you can find them in the [commit history](https://github.com/facebook/react/commits/main/packages/eslint-plugin-react-hooks).

packages/react-devtools-extensions/flow-typed/npm/react-test-renderer_v16.x.x.js

@@ -2,7 +2,7 @@
 // flow-typed version: 9c71eca8ef/react-test-renderer_v16.x.x/flow_>=v0.47.x
 
 // Type definitions for react-test-renderer 16.x.x
-// Ported from: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/react-test-renderer
+// Ported from: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/main/types/react-test-renderer
 
 'use strict';
 

packages/react-devtools-extensions/popups/disabled.html

@@ -13,5 +13,5 @@
 <p>
   <b>This page doesn&rsquo;t appear to be using React.</b>
   <br />
-  If this seems wrong, follow the <a href="https://github.com/facebook/react/tree/master/packages/react-devtools#the-react-tab-doesnt-show-up">troubleshooting instructions</a>.
+  If this seems wrong, follow the <a href="https://github.com/facebook/react/tree/main/packages/react-devtools#the-react-tab-doesnt-show-up">troubleshooting instructions</a>.
 </p>

packages/react-devtools-inline/README.md

@@ -211,4 +211,4 @@ Once the above packages have been built or downloaded, you can watch for changes
 yarn start
 ```
 
-To test package changes, refer to the [`react-devtools-shell` README](https://github.com/facebook/react/blob/master/packages/react-devtools-shell/README.md).
+To test package changes, refer to the [`react-devtools-shell` README](https://github.com/facebook/react/blob/main/packages/react-devtools-shell/README.md).

packages/react-devtools-scheduling-profiler/src/view-base/utils/normalizeWheel.js

@@ -7,7 +7,7 @@
  * @flow
  */
 
-// Adapted from: https://github.com/facebookarchive/fixed-data-table/blob/master/src/vendor_upstream/dom/normalizeWheel.js
+// Adapted from: https://github.com/facebookarchive/fixed-data-table/blob/main/src/vendor_upstream/dom/normalizeWheel.js
 
 export type NormalizedWheelDelta = {|
   deltaX: number,

packages/react-devtools-shared/src/__tests__/profilingCache-test.js

@@ -672,7 +672,7 @@ describe('ProfilingCache', () => {
 
     const About = () => <div>About</div>;
 
-    // Mimics https://github.com/ReactTraining/react-router/blob/master/packages/react-router/modules/Router.js
+    // Mimics https://github.com/ReactTraining/react-router/blob/main/packages/react-router/modules/Router.js
     function Router({children}) {
       const [path, setPath] = React.useState('/');
       return (
@@ -682,7 +682,7 @@ describe('ProfilingCache', () => {
       );
     }
 
-    // Mimics https://github.com/ReactTraining/react-router/blob/master/packages/react-router/modules/Switch.js
+    // Mimics https://github.com/ReactTraining/react-router/blob/main/packages/react-router/modules/Switch.js
     function Switch({children}) {
       return (
         <RouterContext.Consumer>
@@ -699,14 +699,14 @@ describe('ProfilingCache', () => {
       );
     }
 
-    // Mimics https://github.com/ReactTraining/react-router/blob/master/packages/react-router/modules/Route.js
+    // Mimics https://github.com/ReactTraining/react-router/blob/main/packages/react-router/modules/Route.js
     function Route({children, path}) {
       return null;
     }
 
     const linkRef = React.createRef();
 
-    // Mimics https://github.com/ReactTraining/react-router/blob/master/packages/react-router-dom/modules/Link.js
+    // Mimics https://github.com/ReactTraining/react-router/blob/main/packages/react-router-dom/modules/Link.js
     function Link({children, path}) {
       return (
         <RouterContext.Consumer>

packages/react-devtools-shared/src/backend/renderer.js

@@ -2633,7 +2633,7 @@ export function attach(
   const UNMOUNTED = 3;
 
   // This function is copied from React and should be kept in sync:
-  // https://github.com/facebook/react/blob/master/packages/react-reconciler/src/ReactFiberTreeReflection.js
+  // https://github.com/facebook/react/blob/main/packages/react-reconciler/src/ReactFiberTreeReflection.js
   function isFiberMountedImpl(fiber: Fiber): number {
     let node = fiber;
     let prevNode = null;
@@ -2689,7 +2689,7 @@ export function attach(
   }
 
   // This function is copied from React and should be kept in sync:
-  // https://github.com/facebook/react/blob/master/packages/react-reconciler/src/ReactFiberTreeReflection.js
+  // https://github.com/facebook/react/blob/main/packages/react-reconciler/src/ReactFiberTreeReflection.js
   // It would be nice if we updated React to inject this function directly (vs just indirectly via findDOMNode).
   // BEGIN copied code
   function findCurrentFiberUsingSlowPathById(id: number): Fiber | null {

packages/react-devtools-shared/src/constants.js

@@ -44,7 +44,7 @@ export const LOCAL_STORAGE_TRACE_UPDATES_ENABLED_KEY =
 export const PROFILER_EXPORT_VERSION = 5;
 
 export const CHANGE_LOG_URL =
-  'https://github.com/facebook/react/blob/master/packages/react-devtools/CHANGELOG.md';
+  'https://github.com/facebook/react/blob/main/packages/react-devtools/CHANGELOG.md';
 
 export const UNSUPPORTED_VERSION_URL =
   'https://reactjs.org/blog/2019/08/15/new-react-devtools.html#how-do-i-get-the-old-version-back';

packages/react-devtools-shared/src/devtools/cache.js

@@ -15,7 +15,7 @@ import {createContext} from 'react';
 // TODO (cache) Remove this cache; it is outdated and will not work with newer APIs like startTransition.
 
 // Cache implementation was forked from the React repo:
-// https://github.com/facebook/react/blob/master/packages/react-cache/src/ReactCache.js
+// https://github.com/facebook/react/blob/main/packages/react-cache/src/ReactCache.js
 //
 // This cache is simpler than react-cache in that:
 // 1. Individual items don't need to be invalidated.

packages/react-devtools-shell/README.md

@@ -2,7 +2,7 @@ Harness for testing local changes to the `react-devtools-inline` and `react-devt
 
 ## Development
 
-This target should be run in parallel with the `react-devtools-inline` package. The first step then is to run that target following the instructions in the [`react-devtools-inline` README](https://github.com/facebook/react/blob/master/packages/react-devtools-inline/README.md).
+This target should be run in parallel with the `react-devtools-inline` package. The first step then is to run that target following the instructions in the [`react-devtools-inline` README](https://github.com/facebook/react/blob/main/packages/react-devtools-inline/README.md).
 
 The test harness can then be run as follows:
 ```sh

packages/react-devtools/CHANGELOG.md

@@ -2,7 +2,7 @@
 
 <details>
   <summary>
-    Changes that have landed in master but are not yet released.
+    Changes that have landed in main but are not yet released.
     Click to see more.
   </summary>
 
@@ -380,7 +380,7 @@ New keys can be added to object props/state/hooks now. Existing keys can be rena
 #### Improved performance
 The legacy DevTools extension used to add significant performance overhead, making it unusable for some larger React applications. That overhead has been effectively eliminated in version 4.
 
-[Learn more](https://github.com/facebook/react/blob/master/packages/react-devtools/OVERVIEW.md) about the performance optimizations that made this possible.
+[Learn more](https://github.com/facebook/react/blob/main/packages/react-devtools/OVERVIEW.md) about the performance optimizations that made this possible.
 
 #### Component stacks
 
@@ -406,7 +406,7 @@ Filter preferences are remembered between sessions.
 
 #### No more inline props
 
-Components in the tree no longer show inline props. This was done to [make DevTools faster](https://github.com/facebook/react/blob/master/packages/react-devtools/OVERVIEW.md) and to make it easier to browse larger component trees.
+Components in the tree no longer show inline props. This was done to [make DevTools faster](https://github.com/facebook/react/blob/main/packages/react-devtools/OVERVIEW.md) and to make it easier to browse larger component trees.
 
 You can view a component's props, state, and hooks by selecting it:
 

packages/react-devtools/OVERVIEW.md

@@ -259,7 +259,7 @@ Even when dealing with a single component, serializing deeply nested properties
 
 Hooks present a unique challenge for the DevTools because of the concept of _custom_ hooks. (A custom hook is essentially any function that calls at least one of the built-in hooks. By convention custom hooks also have names that begin with "use".)
 
-So how does DevTools identify custom functions called from within third party components? It does this by temporarily overriding React's built-in hooks and shallow rendering the component in question. Whenever one of the (overridden) built-in hooks are called, it parses the call stack to spot potential custom hooks (functions between the component itself and the built-in hook). This approach enables it to build a tree structure describing all of the calls to both the built-in _and_ custom hooks, along with the values passed to those hooks. (If you're interested in learning more about this, [here is the source code](https://github.com/facebook/react/blob/master/packages/react-debug-tools/src/ReactDebugHooks.js).)
+So how does DevTools identify custom functions called from within third party components? It does this by temporarily overriding React's built-in hooks and shallow rendering the component in question. Whenever one of the (overridden) built-in hooks are called, it parses the call stack to spot potential custom hooks (functions between the component itself and the built-in hook). This approach enables it to build a tree structure describing all of the calls to both the built-in _and_ custom hooks, along with the values passed to those hooks. (If you're interested in learning more about this, [here is the source code](https://github.com/facebook/react/blob/main/packages/react-debug-tools/src/ReactDebugHooks.js).)
 
 > **Note**: DevTools obtains hooks info by re-rendering a component.
 > Breakpoints will be invoked during this additional (shallow) render,

packages/react-devtools/README.md

@@ -105,7 +105,7 @@ Or you could develop with a local HTTP server [like `serve`](https://www.npmjs.c
 
 **If your app is inside of CodePen**, make sure you are registered. Then press Fork (if it's not your pen), and then choose Change View > Debug. The Debug view is inspectable with DevTools because it doesn't use an iframe.
 
-**If your app is inside an iframe, a Chrome extension, React Native, or in another unusual environment**, try [the standalone version instead](https://github.com/facebook/react/tree/master/packages/react-devtools). Chrome apps are currently not inspectable.
+**If your app is inside an iframe, a Chrome extension, React Native, or in another unusual environment**, try [the standalone version instead](https://github.com/facebook/react/tree/main/packages/react-devtools). Chrome apps are currently not inspectable.
 
 **If you still have issues** please [report them](https://github.com/facebook/react/issues/new?labels=Component:%20Developer%20Tools). Don't forget to specify your OS, browser version, extension version, and the exact instructions to reproduce the issue with a screenshot.