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).