Use the Hermes artifacts in actions

.github/actions/create-release/action.yml

@@ -4,6 +4,12 @@ inputs:
   version:
     description: "The version of React Native we want to release. For example 0.75.0-rc.0"
     required: true
+  hermes-version:
+    description: "The version of Hermes to be used in this release. For example 0.14.0"
+    required: true
+  hermes-v1-version:
+    description: "The version of Hermes V1 to be used in this release. For example 250829098.0.0"
+    required: true
   is-latest-on-npm:
     description: "Whether we want to tag this release as latest on NPM"
     required: true
@@ -28,6 +34,8 @@ runs:
       run: |
         node scripts/releases/create-release-commit.js \
           --reactNativeVersion "${{ inputs.version }}" \
+          --hermesVersion "${{ inputs.hermes-version }}" \
+          --hermesV1Version "${{ inputs.hermes-v1-version }}" \
           --tagAsLatestRelease "${{ inputs.is-latest-on-npm }}" \
           --dryRun "${{ inputs.dry-run }}"
         GIT_PAGER=cat git show HEAD

.github/actions/test-ios-helloworld/action.yml

@@ -25,21 +25,16 @@ runs:
       uses: ./.github/actions/setup-node
     - name: Run yarn install
       uses: ./.github/actions/yarn-install
-    - name: Create Hermes folder
-      shell: bash
-      run: mkdir -p "$HERMES_WS_DIR"
-    - name: Download Hermes
-      uses: actions/download-artifact@v4
-      with:
-        name: hermes-darwin-bin-${{ inputs.flavor }}
-        path: /tmp/hermes/hermes-runtime-darwin/
-    - name: Print Downloaded hermes
-      shell: bash
-      run: ls -lR "$HERMES_WS_DIR"
     - name: Setup ruby
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ inputs.ruby-version }}
+    - name: Set nightly Hermes versions
+      shell: bash
+      run: |
+        node ./scripts/releases/set-hermes-versions.js --nightly
+    - name: Run yarn install again, with the correct hermes version
+      uses: ./.github/actions/yarn-install
     - name: Download ReactNativeDependencies
       uses: actions/download-artifact@v4
       with:
@@ -66,20 +61,6 @@ runs:
           args+=(--frameworks dynamic)
         fi
 
-        # Tarball is restored with capital flavors suffix, but somehow the tarball name from JS at line 96 returns as lowercased.
-        # Let's ensure that the tarballs have the right names
-
-        if [[ -f "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Debug.tar.gz" ]]; then
-          mv "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Debug.tar.gz" "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-debug.tar.gz"
-        fi
-
-        if [[ -f "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Release.tar.gz" ]]; then
-          mv "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-Release.tar.gz" "$HERMES_WS_DIR/hermes-runtime-darwin/hermes-ios-release.tar.gz"
-        fi
-
-        BUILD_TYPE="${{ inputs.flavor }}"
-        TARBALL_FILENAME=$(node ../../packages/react-native/scripts/hermes/get-tarball-name.js --buildType "$BUILD_TYPE")
-        export HERMES_ENGINE_TARBALL_PATH="$HERMES_WS_DIR/hermes-runtime-darwin/$TARBALL_FILENAME"
         export RCT_USE_LOCAL_RN_DEP="/tmp/third-party/ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz"
         export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ inputs.flavor }}.xcframework.tar.gz"
 

.github/actions/test-ios-rntester/action.yml

@@ -10,9 +10,6 @@ inputs:
   run-unit-tests:
     description: whether unit tests should run or not.
     default: "false"
-  hermes-tarball-artifacts-dir:
-    description: The directory where the hermes tarball artifacts are stored
-    default: /tmp/hermes/hermes-runtime-darwin
   flavor:
     description: The flavor of the build. Must be one of "Debug", "Release".
     default: Debug
@@ -36,56 +33,19 @@ runs:
       uses: ./.github/actions/setup-node
     - name: Run yarn
       uses: ./.github/actions/yarn-install
-    - name: Download Hermes
-      uses: actions/download-artifact@v4
-      with:
-        name: hermes-darwin-bin-${{ inputs.flavor }}
-        path: ${{ inputs.hermes-tarball-artifacts-dir }}
     - name: Setup ruby
       uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ inputs.ruby-version }}
+    - name: Set nightly Hermes versions
+      shell: bash
+      run: |
+        node ./scripts/releases/set-hermes-versions.js --nightly
+    - name: Run yarn install again, with the correct hermes version
+      uses: ./.github/actions/yarn-install
     - name: Prepare IOS Tests
       if: ${{ inputs.run-unit-tests == 'true' }}
       uses: ./.github/actions/prepare-ios-tests
-    - name: Set HERMES_ENGINE_TARBALL_PATH envvar if Hermes tarball is present
-      shell: bash
-      run: |
-        HERMES_TARBALL_ARTIFACTS_DIR=${{ inputs.hermes-tarball-artifacts-dir }}
-        if [ ! -d $HERMES_TARBALL_ARTIFACTS_DIR ]; then
-          echo "Hermes tarball artifacts dir not present ($HERMES_TARBALL_ARTIFACTS_DIR). Build Hermes from source."
-          exit 0
-        fi
-
-        TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "${{ inputs.flavor }}")
-        TARBALL_PATH=$HERMES_TARBALL_ARTIFACTS_DIR/$TARBALL_FILENAME
-
-        echo "Looking for $TARBALL_FILENAME in $HERMES_TARBALL_ARTIFACTS_DIR"
-        echo "$TARBALL_PATH"
-
-        if [ ! -f $TARBALL_PATH ]; then
-          echo "Hermes tarball not present ($TARBALL_PATH). Build Hermes from source."
-          exit 0
-        fi
-
-        echo "Found Hermes tarball at $TARBALL_PATH"
-        echo "HERMES_ENGINE_TARBALL_PATH=$TARBALL_PATH" >> $GITHUB_ENV
-    - name: Print Hermes version
-      shell: bash
-      run: |
-        HERMES_TARBALL_ARTIFACTS_DIR=${{ inputs.hermes-tarball-artifacts-dir }}
-        TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "${{ inputs.flavor }}")
-        TARBALL_PATH=$HERMES_TARBALL_ARTIFACTS_DIR/$TARBALL_FILENAME
-        if [[ -e $TARBALL_PATH ]]; then
-          tar -xf $TARBALL_PATH
-          echo 'print(HermesInternal?.getRuntimeProperties?.()["OSS Release Version"])' > test.js
-          chmod +x ./destroot/bin/hermes
-          ./destroot/bin/hermes test.js
-          rm test.js
-          rm -rf destroot
-        else
-          echo 'No Hermes tarball found.'
-        fi
     - name: Download ReactNativeDependencies
       uses: actions/download-artifact@v4
       with:
@@ -105,7 +65,6 @@ runs:
     - name: Install CocoaPods dependencies
       shell: bash
       run: |
-        export HERMES_ENGINE_TARBALL_PATH=$HERMES_ENGINE_TARBALL_PATH
         export RCT_USE_LOCAL_RN_DEP="/tmp/third-party/ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz"
         export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ inputs.flavor }}.xcframework.tar.gz"
 
@@ -116,6 +75,7 @@ runs:
         cd packages/rn-tester
 
         bundle install
+        bundle exec pod update hermes-engine --no-repo-update
         bundle exec pod install
     - name: Build RNTester
       shell: bash

.github/workflows/create-release.yml

@@ -7,6 +7,12 @@ on:
         description: "The version of React Native we want to release. For example 0.75.0-rc.0"
         required: true
         type: string
+      hermes-version:
+        description: "The version of Hermes to be used in this release. For example 0.14.0"
+        required: true
+      hermes-v1-version:
+        description: "The version of Hermes V1 to be used in this release. For example 250829098.0.0"
+        required: true
       is-latest-on-npm:
         description: "Whether we want to tag this release as latest on NPM"
         required: true
@@ -53,5 +59,7 @@ jobs:
         uses: ./.github/actions/create-release
         with:
           version: ${{ inputs.version }}
+          hermes-version: ${{ inputs.hermes-version }}
+          hermes-v1-version: ${{ inputs.hermes-v1-version }}
           is-latest-on-npm: ${{ inputs.is-latest-on-npm }}
           dry-run: ${{ inputs.dry-run }}

.github/workflows/nightly.yml

@@ -108,6 +108,8 @@ jobs:
 
   prebuild_react_native_core:
     uses: ./.github/workflows/prebuild-ios-core.yml
+    with:
+      use-hermes-nightly: true
     secrets: inherit
     needs: [prebuild_apple_dependencies, build_hermes_macos]
 

.github/workflows/prebuild-ios-core.yml

@@ -2,7 +2,12 @@ name: Prebuild iOS Dependencies
 
 on:
   workflow_call: # this directive allow us to call this workflow from other workflows
-
+    inputs:
+      use-hermes-nightly:
+        description: 'Whether to use the hermes nightly build or read the version from the versions.properties file'
+        type: boolean
+        required: false
+        default: false
 
 jobs:
   build-rn-slice:
@@ -36,35 +41,16 @@ jobs:
       - name: Yarn Install
         if: steps.restore-ios-slice.outputs.cache-hit != 'true'
         uses: ./.github/actions/yarn-install
-      - name: Download Hermes
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
-        uses: actions/download-artifact@v4
-        with:
-          name: hermes-darwin-bin-${{ matrix.flavor }}
-          path: /tmp/hermes/hermes-runtime-darwin
-      - name: Extract Hermes
-        if: steps.restore-ios-slice.outputs.cache-hit != 'true'
+      - name: Set Hermes version
         shell: bash
         run: |
-          HERMES_TARBALL_ARTIFACTS_DIR=/tmp/hermes/hermes-runtime-darwin
-          if [ ! -d $HERMES_TARBALL_ARTIFACTS_DIR ]; then
-            echo "Hermes tarball artifacts dir not present ($HERMES_TARBALL_ARTIFACTS_DIR)."
-            exit 0
+          if [ "${{ inputs.use-hermes-nightly }}" == "true" ]; then
+            HERMES_VERSION="nightly"
+          else
+            HERMES_VERSION=$(sed -n 's/^HERMES_VERSION_NAME=//p' packages/react-native/sdks/hermes-engine/version.properties)
           fi
-
-          TARBALL_FILENAME=$(node ./packages/react-native/scripts/hermes/get-tarball-name.js --buildType "${{ matrix.flavor }}")
-          TARBALL_PATH=$HERMES_TARBALL_ARTIFACTS_DIR/$TARBALL_FILENAME
-
-          echo "Looking for $TARBALL_FILENAME in $HERMES_TARBALL_ARTIFACTS_DIR"
-          echo "$TARBALL_PATH"
-
-          if [ ! -f $TARBALL_PATH ]; then
-            echo "Hermes tarball not present ($TARBALL_PATH). Build Hermes from source."
-            exit 0
-          fi
-
-          echo "Found Hermes tarball at $TARBALL_PATH"
-          echo "HERMES_ENGINE_TARBALL_PATH=$TARBALL_PATH" >> $GITHUB_ENV
+          echo "Using Hermes version: $HERMES_VERSION"
+          echo "HERMES_VERSION=$HERMES_VERSION" >> $GITHUB_ENV
       - name: Download ReactNativeDependencies
         uses: actions/download-artifact@v4
         with:

.github/workflows/test-all.yml

@@ -120,16 +120,15 @@ jobs:
 
   prebuild_react_native_core:
     uses: ./.github/workflows/prebuild-ios-core.yml
+    with:
+      use-hermes-nightly: true
     secrets: inherit
     needs: [prebuild_apple_dependencies, build_hermes_macos]
 
   test_ios_rntester_ruby_3_2_0:
     runs-on: macos-14
     needs:
       [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies, prebuild_react_native_core]
-    env:
-      HERMES_WS_DIR: /tmp/hermes
-      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -145,9 +144,6 @@ jobs:
     runs-on: macos-14-large
     needs:
       [build_apple_slices_hermes, prepare_hermes_workspace, build_hermes_macos, prebuild_apple_dependencies, prebuild_react_native_core]
-    env:
-      HERMES_WS_DIR: /tmp/hermes
-      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
     continue-on-error: true
     strategy:
       fail-fast: false
@@ -169,9 +165,6 @@ jobs:
     runs-on: macos-14-large
     needs:
       [test_ios_rntester]
-    env:
-      HERMES_WS_DIR: /tmp/hermes
-      HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
     strategy:
       fail-fast: false
       matrix:
@@ -259,9 +252,6 @@ jobs:
           REACT_NATIVE_PKG=$(find /tmp/react-native-tmp -type f -name "*.tgz")
           echo "React Native tgs is $REACT_NATIVE_PKG"
 
-          HERMES_PATH=$(find /tmp/react-native-tmp -type f -name "*.tar.gz")
-          echo "Hermes path is $HERMES_PATH"
-
           # For stable branches, we want to use the stable branch of the template
           # In all the other cases, we want to use "main"
           BRANCH=${{ github.ref_name }}
@@ -278,7 +268,7 @@ jobs:
           export RCT_USE_LOCAL_RN_DEP=/tmp/third-party/ReactNativeDependencies${{ matrix.flavor }}.xcframework.tar.gz
           # Disable prebuilds for now, as they are causing issues with E2E tests for 0.82-stable branch
           # export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ matrix.flavor }}.xcframework.tar.gz"
-          HERMES_ENGINE_TARBALL_PATH=$HERMES_PATH RCT_NEW_ARCH_ENABLED=$NEW_ARCH_ENABLED bundle exec pod install
+          RCT_NEW_ARCH_ENABLED=$NEW_ARCH_ENABLED bundle exec pod install
 
           xcodebuild \
             -scheme "RNTestProject" \
@@ -535,6 +525,12 @@ jobs:
           cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
       - name: Run yarn install
         uses: ./.github/actions/yarn-install
+      - name: Set nightly Hermes versions
+        shell: bash
+        run: |
+          node ./scripts/releases/set-hermes-versions.js --nightly
+      - name: Run yarn install again, with the correct hermes version
+        uses: ./.github/actions/yarn-install
       - name: Prepare the Helloworld application
         shell: bash
         run: node ./scripts/e2e/init-project-e2e.js --useHelloWorld --pathToLocalReactNative "$GITHUB_WORKSPACE/build/$(cat build/react-native-package-version)"

build.gradle.kts

@@ -135,8 +135,7 @@ if (project.findProperty("react.internal.useHermesNightly")?.toString()?.toBoole
     configurations.all {
       resolutionStrategy.dependencySubstitution {
         substitute(project(":packages:react-native:ReactAndroid:hermes-engine"))
-            // TODO: T237406039 update coordinates
-            .using(module("com.facebook.react:hermes-android:0.+"))
+            .using(module("com.facebook.hermes:hermes-android:0.+"))
             .because("Users opted to use hermes from nightly")
       }
     }

packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/TaskConfiguration.kt

@@ -14,7 +14,6 @@ import com.facebook.react.utils.KotlinStdlibCompatUtils.capitalizeCompat
 import com.facebook.react.utils.NdkConfiguratorUtils.configureJsEnginePackagingOptions
 import com.facebook.react.utils.NdkConfiguratorUtils.configureNewArchPackagingOptions
 import com.facebook.react.utils.ProjectUtils.isHermesEnabled
-import com.facebook.react.utils.ProjectUtils.isHermesV1Enabled
 import com.facebook.react.utils.ProjectUtils.useThirdPartyJSC
 import com.facebook.react.utils.detectedCliFile
 import com.facebook.react.utils.detectedEntryFile
@@ -49,7 +48,6 @@ internal fun Project.configureReactTasks(variant: Variant, config: ReactExtensio
       } else {
         isHermesEnabledInProject
       }
-  val isHermesV1Enabled = project.isHermesV1Enabled || rootProject.isHermesV1Enabled
   val isDebuggableVariant =
       config.debuggableVariants.get().any { it.equals(variant.name, ignoreCase = true) }
   val useThirdPartyJSC = project.useThirdPartyJSC
@@ -80,7 +78,6 @@ internal fun Project.configureReactTasks(variant: Variant, config: ReactExtensio
           task.jsBundleDir.set(jsBundleDir)
           task.resourcesDir.set(resourcesDir)
           task.hermesEnabled.set(isHermesEnabledInThisVariant)
-          task.hermesV1Enabled.set(isHermesV1Enabled)
           task.minifyEnabled.set(!isHermesEnabledInThisVariant)
           task.devEnabled.set(false)
           task.jsIntermediateSourceMapsDir.set(jsIntermediateSourceMapsDir)

packages/gradle-plugin/react-native-gradle-plugin/src/main/kotlin/com/facebook/react/tasks/BundleHermesCTask.kt

@@ -63,8 +63,6 @@ abstract class BundleHermesCTask : DefaultTask() {
 
   @get:Input abstract val hermesEnabled: Property<Boolean>
 
-  @get:Input abstract val hermesV1Enabled: Property<Boolean>
-
   @get:Input abstract val devEnabled: Property<Boolean>
 
   @get:Input abstract val extraPackagerArgs: ListProperty<String>
@@ -96,8 +94,7 @@ abstract class BundleHermesCTask : DefaultTask() {
     runCommand(bundleCommand)
 
     if (hermesEnabled.get()) {
-      val detectedHermesCommand =
-          detectOSAwareHermesCommand(root.get().asFile, hermesCommand.get(), hermesV1Enabled.get())
+      val detectedHermesCommand = detectOSAwareHermesCommand(root.get().asFile, hermesCommand.get())
       val bytecodeFile = File("${bundleFile}.hbc")
       val outputSourceMap = resolveOutputSourceMap(bundleAssetFilename)
       val compilerSourceMap = resolveCompilerSourceMap(bundleAssetFilename)