Merge commit '143f1ad29874c1e8e9561abae263cb08f4859407' into 0.76-merge

Author: Saadnajmi

.circleci/README.md

@@ -1,172 +1,4 @@
 # Circle CI
 
-This directory is home to the Circle CI configuration files. Circle is our continuous integration service provider. You can see the overall status of React Native's builds at https://circleci.com/gh/facebook/react-native
-
-You may also see an individual PR's build status by scrolling down to the Checks section in the PR.
-
-## Purposes
-
-We use CircleCI for mainly 3 purposes:
-
-1. Testing changes
-2. Release Nightlies
-3. Release Stable Versions of React Native
-
-When testing changes, we run all the tests on commits that lands on `main`. For commits in PR, we try to understand which kind of changes the PR is about and we try to selectively run only the relevant tests. so, for example, if a PR only touches iOS files, we are going to run only iOS tests.
-
-A Nighly job runs every day at around 9:00 PM, GMT. They run from `main` and they publish a version of React Native using the current state of the codebase, creating a version number that follows the format: `0.<current-version+1>.0-nightly-<YYYYMMDD>-<short-commit-hash>`.
-The nightly job also publish all the monorepo packages, taking care of updating the transitive dependencies of those packages.
-
-Stable versions are released manually by the Release Crew and they run from a stable branch. Stable branches have the shape of `0.<version>-stable`.
-
-## How It Works?
-
-CircleCI execution is now split in two steps:
-- Setup
-- Testing
-
-The setup step takes care of analyzing the changes in the PR and of deciding which jobs needs to run.
-
-The testing flow is a set of workflows that executes the required tests.
-
-### Setup
-
-The code of the setup workflow lives in the root [`config.yml`](https://github.com/facebook/react-native/blob/main/.circleci/config.yml) file.
-It uses the `Continuation orb` from CircleCI to start a CI flow that depends on the changes present in the PR.
-
-If the changes are not coming from a PR (either a simple commit or if the CI is running on main) **we always run all the tests** as a cautionary measure.
-
-The setup job has also to expose all the pipeline parameters that we would need to pass to the actual workflow. Those parameters are **automatically forwarded** to the workflows that are started as a result of the setup.
-
-The setup job uses a JS script to carry on its logic. The [`pipeline_selection.js`](https://github.com/facebook/react-native/blob/main/scripts/circleci/pipeline_selection.js) script can be invoked with two commands:
-- `filter-jobs`
-- `create-configs`
-
-The **`filter-jobs`** command takes care of creating a JSON representation of the tests we need to run based on the changes in the PR.
-
-The **`create-configs`** command consumes the JSON representation to create a CircleCI configuration that can then executes all the required tests.
-
-#### Creating a Configuration
-
-To create a configuration, the `pipeline-selection` scripts collates together various pieces of `YML` files that lives in the [`Configurations` folder](https://github.com/facebook/react-native/tree/main/.circleci/configurations).
-
-The order in which these files are appended is **important** and it always contains the following.:
-
-1. `top_level.yml`: this file contains some high level directives for CircleCI, like the version, the list of orbs, the cache-keys, and the pipeline parameters that can be used by the workflows.
-2. `executors.yml`: this file contains the list of the executors used in our jobs and their configurations.
-3. `commands.yml`: this file contains all the commands that can be used by jobs to executes. Commands are reusable functions that are shared by multiple jobs.
-4. `jobs.yml`: this file contains the jobs that are used by workflows to carry on some specific tasks. They are composed of sequential commands.
-5. `workflows.yml`: this file contains the shared workflows that needs to (or can) be always executed, no matter which kind of changes are pushed to CI. An example of these workflows is `analysis` (which is always executed) or `nightly` (which can be executed if a specific pipeline parameter is passed to the CI).
-
-Then, the `pipeline_selection create-configs` attach some specific test workflows, depending on the changes that are present in the PR. These change-dependent workflows live in the [`test_workflows`](https://github.com/facebook/react-native/tree/main/.circleci/configurations/test_workflows) folder.
-These workflows are:
-* `testAll.yml` => runs all the possible tests. This workflow is executed on main and on PRs which change set touches both iOS and Android
-* `testAndroid.yml` => runs all the build steps and Android tests. This is used on changes that happens on the Android codebase and infra (`ReactAndroid` folder)
-* `testIOS.yml` => runs all the build steps and iOS tests. This is used on changes that happens on the iOS codebase and infra (`React` folder)
-* `testE2E.yml` => runs the E2E tests. As of today, E2E tests can be triggered if the commit message contains the `#run-e2e-tests` tag.
-* `testJS.yml` => For all the changes that do not touch native/platform code, we only run JS tests.
-
-Notice that if there are changes on files that do not represents code (for example `.md` files like this one or the `Changelog`) we don't run any CI.
-
-## Test workflows
-
-The test workflows for native code are composed of 2 parts:
-- building React Native
-- testing
-
-Building React Native requires us to build several parts of it:
-1. We need to build the Hermes JS engine
-2. We need to build Android to create prebuilds
-3. We need to package everything in an npm package that will mimic a React native release
-4. We need to create a local maven repository
-
-### Building Hermes Engine
-
-#### Android
-The `build_android` workflows takes care of building the Android version of Hermes and to put it properly in a local maven repository.
-See the [Build Android](#build_android) section below.
-
-#### iOS
-Hermes is a very complicated item to build for iOS.
-It is composed of the Hermes compiler (HermesC) and of the actual engine.
-
-Hermes is shipped as a universal XCFramework. This means that we need to build all the architecture slices and then put them together in the XCFramework archive.
-We also need to build 2 configurations: Debug and Release.
-
-In order to be efficient and to save costs, we parallelize the process as much as possible:
-
-1. We prepare the environment for building Hermes.
-2. We build HermesC which is required by all the slices.
-3. We start 8 jobs to build all the required slices in parallel:
-    1. `iphone` slice, Debug mode
-    1. `iphonesimulator` slice, Debug mode
-    1. `macos` slice, Debug mode
-    1. `catalyst` slice, Debug mode
-    1. `iphone` slice, Release mode
-    1. `iphonesimulator` slice, Release mode
-    1. `macos` slice, Release mode
-    1. `catalyst` slice, Release mode
-4. We then have 2 jobs to create the Debug and Release tarballs in parallel.
-    1. The Debug job receives the 4 Debug slices
-    1. The Release job receives the 4 Release slices
-
-The `Debug` and `Release` tarball are then uploaded as artifacts. Notice that these we use these artifacts to **test the release** of React Native.
-
-While building Hermes, we take also care of building the dSYMs. A dSYM (Debug Symbols) is an archive that contains the Debug Symbols that users can load to de-symbolicate the Hermes Stack traces. These symbols are published when we create a React Native release.
-
-A lot of these build steps are automated by some shell scripts that lives in the [`react-native/packages/react-native/sdks/hermes-engine/utils` folder](https://github.com/facebook/react-native/tree/main/packages/react-native/sdks/hermes-engine/utils).
-
-### Build Android
-
-The android build is all managed by Gradle, so building android should be as easy as calling a [`gradle` command](https://github.com/facebook/react-native/blob/main/.circleci/configurations/jobs.yml#L268-L274).
-
-The relevant part here is that the build android generates a `maven-local` repository that is passed to the [`build_npm_package`](https://github.com/facebook/react-native/blob/main/.circleci/configurations/jobs.yml#L1182) and that we use to test the releases.
-
-### Build NPM package
-
-This job is the responsible to create an NPM package that is suitable to be released or tested in CI.
-If we are in a release flow (for example the Nightly workflow), it also proceed with the publication.
-
-The job can be invoked with different parameters:
-- `dry-run` => it does not publish anything, but prepare the artifacts to be used for testing
-- `nightly` => it creates the artifacts and publish a nightly version of React Native.
-- `release` => it creates the artifacts and publish a stable version of React Native.
-
-The build NPM package takes all the artifacts produced in the previous steps (iOS' Hermes, iOS' Hermes dSYMs, Android's `maven-local`) and creates an npm package packing all the code.
-
-If in a release mode, it also proceed publishing the NPM package to NPM, and the artifacts to Maven central, which we use to distribute all the artifacts.
-
-This job also uploads the `maven-local` repository and a zipped version of the npm package to CircleCI's artifacts. We use these artifacts to **test the release** of React Native.
-
-## Testing React Native
-React Native tests runs in two different scenarios:
-- RNTester
-- A New App
-
-### RNTester
-RNTester is our internal testing app. It is a fully working React Native app that lives in the [`react-native/packages/rn-tester` folder](https://github.com/facebook/react-native/tree/main/packages/rn-tester) of the repository.
-RNTester is an app which contains code that exercise most part of the React Native frameworks.
-It also has the feature of building React Native **from source**. For that reason, it does not have to wait for the NPM package to be ready, but RNTester's tests can start as soon as the `build_android` step and the step that builds Hermes for iOS are done.
-
-Notice the Tests on RNTester for iOS consumes the Hermes engine that is built in the previous steps.
-
-For Android, these tests creates an APK that is uploaded as an artifact in CircleCI. We use these artifacts to **test the releases** of React Native..
-
-### A New App
-The React Native repo contains a template app in the [`react-native/packages/react-native/template` folder]() that is used to spin up a new application that is preconfigured with React Native.
-
-We have several tests that we run starting from the template, testing various configurations:
-- Debug/Release
-- JSC/Hermes (two different JS engine we support)
-- New/Old Architecture (two different Architectures for React Native)
-
-We want to test all the React Native changes against the template, but we can't publish a React native version on each change that is merged. Therefore, to run tests on the template we use a NPM registry proxy called [Verdaccio](https://verdaccio.org/).
-
-When running a Template test our CI follows roughly these steps:
-1. Prepare the executor
-2. Start a Verdaccio server
-3. Publish on Verdaccio all the monorepo [packages](https://github.com/facebook/react-native/tree/main/packages) on which React Native depends on.
-4. Publish on Verdaccio the react-native NPM package that has been created in the NPM step
-5. Spin up a new React native apps from the template, downloading react-native from Verdaccio.
-
-In this way, we are sure that we can test all the changes that happen in React Native on a new React Native app.
+This directory was home to the Circle CI configuration files.
+In July 2024 we moved to GitHub Actions, and week this folder for backward compatibility, as we want to keep on using Circle CI for the release of React Native <= 0.74.

.circleci/config.yml

@@ -1,114 +1,13 @@
 version: 2.1
-
-# this allows you to use CircleCI's dynamic configuration feature
-setup: true
-
-orbs:
-  continuation: circleci/[email protected]
-
-parameters:
-  # Real pipelines parameters
-  run_release_workflow:
-    default: false
-    type: boolean
-
-  run_nightly_workflow:
-    default: false
-    type: boolean
-
-  release_version:
-    default: ""
-    type: string
-
-  release_monorepo_packages_version:
-    default: ""
-    type: string
-
-  release_tag:
-    default: ""
-    type: string
-
-  release_dry_run:
-    default: false
-    type: boolean
+workflows:
+  version: 2
+  stub:
+    jobs:
+      - circleci-stub
 
 jobs:
-  choose_ci_jobs:
+  circleci-stub:
     docker:
       - image: debian:bullseye
-    resource_class: small
     steps:
-      - run:
-          name: Install Yarn
-          command: |
-            apt update
-            apt install -y wget git curl jq
-
-            apt-get update
-            apt-get install -y ca-certificates curl gnupg
-            mkdir -p /etc/apt/keyrings
-            curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
-
-            NODE_MAJOR=18
-            echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_$NODE_MAJOR.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
-            apt-get update
-
-            apt install -y nodejs
-            npm install --global yarn
-      - checkout
-      - run:
-          name: Yarn Install
-          command: yarn install
-      - when:
-          condition:
-            or:
-              - equal: [ main, << pipeline.git.branch >> ]
-              - matches:
-                  pattern: /0\.[0-9]+[\.[0-9]+]?-stable/
-                  value: << pipeline.git.branch >>
-          steps:
-            - run:
-                name: "[Main or Stable] Create input for config to test everything"
-                command: |
-                  mkdir -p /tmp/circleci/
-                  echo '{ "run_all": true }' > /tmp/circleci/pipeline_config.json
-      - when:
-          condition:
-            not:
-              or:
-                - equal: [ main, << pipeline.git.branch >> ]
-                - matches:
-                    pattern: /0\.[0-9]+[\.[0-9]+]?-stable/
-                    value: << pipeline.git.branch >>
-          steps:
-            - run:
-                name: "[PR Branch] Filter jobs"
-                command: |
-                  if [[ -z "$CIRCLE_PULL_REQUEST" ]]; then
-                    echo "Not in a PR. Can't filter properly outside a PR. Please open a PR so that we can run the proper CI tests."
-                    echo "For safety, we run all the tests!"
-                    mkdir -p /tmp/circleci/
-                    echo '{ "run_all": true }' > /tmp/circleci/pipeline_config.json
-                  else
-                    PR_NUMBER="${CIRCLE_PULL_REQUEST##*/}"
-                    node ./scripts/circleci/pipeline_selection.js filter-jobs
-                  fi
-      - run:
-          name: Create config
-          description: Generates a configuration on the fly, depending on the files that have been modified
-          command: |
-            node ./scripts/circleci/pipeline_selection.js create-configs
-      - store_artifacts:
-          path: .circleci/generated_config.yml
-          destination: generated_config.yml
-      - continuation/continue:
-            configuration_path: .circleci/generated_config.yml
-
-# our single workflow, that triggers the setup job defined above
-workflows:
-  always-run:
-    jobs:
-      - choose_ci_jobs:
-          filters:
-            tags:
-              only: /.*/
+      - run: echo "There is nothing here, just an empty job. Everything has been moved to GitHub Action"