Build static arm64 Linux binaries

Author: cknitt

.github/workflows/ci.yml

@@ -20,18 +20,18 @@ jobs:
   # for more info.
   # The container already comes with all required tools pre-installed
   # (see https://github.com/rescript-lang/docker-rescript-ci-build/blob/main/Dockerfile).
-  static-binaries-linux:
+  static-binaries-linux-amd64:
     runs-on: ubuntu-latest
 
     container:
-      image: ghcr.io/rescript-lang/rescript-ci-build:v1.0.0
+      image: ghcr.io/rescript-lang/rescript-ci-build:main
 
     steps:
       - name: Checkout
         uses: actions/checkout@v3
 
       - name: Build compiler binaries
-        run: opam exec -- dune build --profile static
+        run: opam exec -- dune build --display quiet --profile static
 
       - name: Build ninja binary
         working-directory: ninja
@@ -42,18 +42,58 @@ jobs:
       - name: "Upload artifacts"
         uses: actions/upload-artifact@v3
         with:
-          name: static-binaries-linux
+          name: static-binaries-linux-amd64
+          path: |
+            _build/install/default/bin
+            ninja/ninja
+
+  static-binaries-linux-arm64:
+    runs-on: buildjet-2vcpu-ubuntu-2204-arm
+
+    container:
+      image: ghcr.io/rescript-lang/rescript-ci-build:main
+
+    steps:
+      # See https://github.com/actions/runner/issues/801#issuecomment-1374967227.
+      - name: Workaround for Github actions runner on Alpine arm64
+        run: sed -i "s:ID=alpine:ID=NotpineForGHA:" /etc/os-release
+
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Build compiler binaries
+        run: opam exec -- dune build --display quiet --profile static
+
+      - name: Build ninja binary
+        working-directory: ninja
+        env:
+          LDFLAGS: -static
+        run: python3 configure.py --bootstrap --verbose
+
+      - name: "Upload artifacts"
+        uses: actions/upload-artifact@v3
+        with:
+          name: static-binaries-linux-arm64
           path: |
             _build/install/default/bin
             ninja/ninja
 
   build:
-    needs: static-binaries-linux
+    needs:
+      - static-binaries-linux-amd64
+      - static-binaries-linux-arm64
 
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, ubuntu-latest, windows-latest, macos-arm]
+        os:
+          [
+            macos-latest,
+            macos-arm,
+            ubuntu-22.04,
+            buildjet-2vcpu-ubuntu-2204-arm,
+            windows-latest,
+          ]
         ocaml_compiler: [4.14.0]
 
     runs-on: ${{matrix.os}}
@@ -73,11 +113,17 @@ jobs:
         with:
           fetch-depth: 2 # to be able to check for changes in subfolder res_syntax later
 
-      - name: Download static linux binaries
-        if: runner.os == 'Linux'
+      - name: Download static linux binaries (amd64)
+        if: runner.os == 'Linux' && runner.arch	== "X64"
+        uses: actions/download-artifact@v3
+        with:
+          name: static-binaries-linux-amd64
+
+      - name: Download static linux binaries (arm64)
+        if: runner.os == 'Linux' && runner.arch	== "ARM64"
         uses: actions/download-artifact@v3
         with:
-          name: static-binaries-linux
+          name: static-binaries-linux-arm64
 
       - name: Make static linux binaries executable
         if: runner.os == 'Linux'