feat(hermes-compiler): publish Linux ARM64 hermesc

.github/workflows/build-hermesc-linux.yml

@@ -4,7 +4,18 @@ on: workflow_call
 
 jobs:
   build-hermesc-linux:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - runner: ubuntu-latest
+            cmake-arch: x86_64
+            binary-dir: linux64-bin
+            artifact: hermes-linux-bin
+          - runner: ubuntu-24.04-arm
+            cmake-arch: aarch64
+            binary-dir: linuxarm64-bin
+            artifact: hermes-linux-arm64-bin
+    runs-on: ${{ matrix.runner }}
     env:
       HERMES_TARBALL_ARTIFACTS_DIR: /tmp/hermes/hermes-runtime-darwin
     steps:
@@ -18,7 +29,7 @@ jobs:
               libreadline-dev libicu-dev jq zip python3
 
           sudo mkdir -p /usr/local/cmake
-          sudo wget -qO- https://github.com/Kitware/CMake/releases/download/v3.31.6/cmake-3.31.6-linux-x86_64.tar.gz \
+          sudo wget -qO- https://github.com/Kitware/CMake/releases/download/v3.31.6/cmake-3.31.6-linux-${{ matrix.cmake-arch }}.tar.gz \
           | sudo tar --strip-components=1 -xz -C /usr/local/cmake
           sudo cp /usr/local/cmake/bin/* /usr/local/bin/
           export PATH=/usr/local/bin:$PATH
@@ -27,17 +38,24 @@ jobs:
       - name: Set up workspace
         shell: bash
         run: |
-          mkdir -p /tmp/hermes/linux64-bin
+          mkdir -p /tmp/hermes/${{ matrix.binary-dir }}
       - name: Build HermesC for Linux
         shell: bash
         run: |
           cmake -S . -B build -DHERMES_STATIC_LINK=ON -DCMAKE_BUILD_TYPE=Release -DHERMES_ENABLE_TEST_SUITE=OFF \
             -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=True -DCMAKE_CXX_FLAGS=-s -DCMAKE_C_FLAGS=-s \
             -DCMAKE_EXE_LINKER_FLAGS="-Wl,--whole-archive -lpthread -Wl,--no-whole-archive"
           cmake --build build --target hermesc -j 4
-          cp build/bin/hermesc /tmp/hermes/linux64-bin/.
+          cp build/bin/hermesc /tmp/hermes/${{ matrix.binary-dir }}/.
+          test "$(uname -m)" = '${{ matrix.cmake-arch }}'
+          /tmp/hermes/${{ matrix.binary-dir }}/hermesc --version
+          printf 'print(1);\n' > /tmp/hermes/smoke.js
+          /tmp/hermes/${{ matrix.binary-dir }}/hermesc -emit-binary \
+            -out /tmp/hermes/smoke.hbc /tmp/hermes/smoke.js
+          test -s /tmp/hermes/smoke.hbc
       - name: Upload linux artifacts
         uses: actions/upload-artifact@v4.3.4
         with:
-          name: hermes-linux-bin
-          path: /tmp/hermes/linux64-bin
+          name: ${{ matrix.artifact }}
+          path: /tmp/hermes/${{ matrix.binary-dir }}
+          if-no-files-found: error

.github/workflows/rn-build-hermes.yml

@@ -151,6 +151,11 @@ jobs:
         with:
           name: hermes-linux-bin
           path: /tmp/hermes/linux64-bin
+      - name: Download linux-arm64-bin artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: hermes-linux-arm64-bin
+          path: /tmp/hermes/linuxarm64-bin
       - name: Download windows-bin artifacts
         uses: actions/download-artifact@v4
         with:
@@ -167,6 +172,22 @@ jobs:
         shell: bash
         run: |
           node ./utils/scripts/hermes/prepare-artifacts.js
+      - name: Verify Linux compilers are included in the npm package
+        shell: bash
+        run: |
+          node - <<'NODE'
+          const {execFileSync} = require('node:child_process');
+          const [packed] = JSON.parse(execFileSync('npm', ['pack', '--dry-run', '--json'], {
+            cwd: 'npm/hermes-compiler',
+          }));
+          const files = new Set(packed.files.map(file => file.path));
+          for (const binary of [
+            'hermesc/linux64-bin/hermesc',
+            'hermesc/linuxarm64-bin/hermesc',
+          ]) {
+            if (!files.has(binary)) throw new Error(`Missing from npm package: ${binary}`);
+          }
+          NODE
       - name: Print Artifacts Directory
         shell: bash
         run: ls -lR ./android/ios-artifacts/artifacts/

utils/scripts/hermes/prepare-artifacts.js

@@ -22,6 +22,7 @@ function copyHermesBinaries() {
   // Create directories for npm/hermes-compiler/hermesc binaries
   mkdir('-p', './npm/hermes-compiler/hermesc/osx-bin');
   mkdir('-p', './npm/hermes-compiler/hermesc/linux64-bin');
+  mkdir('-p', './npm/hermes-compiler/hermesc/linuxarm64-bin');
   mkdir('-p', './npm/hermes-compiler/hermesc/win64-bin');
 
   const osxBinDir = path.join(HERMES_WS_DIR, 'osx-bin');
@@ -82,6 +83,16 @@ function copyHermesBinaries() {
     path.join(HERMES_WS_DIR, 'linux64-bin/*'),
     './npm/hermes-compiler/hermesc/linux64-bin/.',
   );
+  echo('Copying Linux ARM64 binary...');
+  const linuxArm64Hermesc = path.join(HERMES_WS_DIR, 'linuxarm64-bin', 'hermesc');
+  if (!test('-f', linuxArm64Hermesc)) {
+    echo('Could not locate Linux ARM64 hermesc binary.');
+    exit(1);
+  }
+  cp(
+    linuxArm64Hermesc,
+    './npm/hermes-compiler/hermesc/linuxarm64-bin/.',
+  );
 
   echo('Making hermesc files executable...');
   chmod('-R', '+x', 'npm/hermes-compiler/hermesc/*');