github: use arm linux instead of x86 whenever possible (#9794)

- Simplify getting cmake, ninja for linux
 - Move linux, web, webgpu builds to use arm (more cores for less)
 - Android cannot be moved due to Android SDK not available on
   arm linux yet.
 - Add Arm Linux release artifacts

Fixes #8674

.github/actions/linux-prereq/action.yml

@@ -11,24 +11,13 @@ runs:
         echo "set man-db/auto-update false" | sudo debconf-communicate
         sudo dpkg-reconfigure man-db
 
-        # Install ninja
-        source ./build/common/get-ninja.sh
-
-        # Install CMake
-        mkdir -p cmake
-        cd cmake
-
-        sudo wget https://github.com/Kitware/CMake/releases/download/v$GITHUB_CMAKE_VERSION/cmake-$GITHUB_CMAKE_VERSION-Linux-x86_64.sh
-        sudo chmod +x ./cmake-$GITHUB_CMAKE_VERSION-Linux-x86_64.sh
-        sudo ./cmake-$GITHUB_CMAKE_VERSION-Linux-x86_64.sh --skip-license > /dev/null
-        sudo update-alternatives --install /usr/bin/cmake cmake $(pwd)/bin/cmake 1000 --force
-
         cd ..
 
         sudo wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
         sudo apt-get update
         sudo apt-get install clang-$GITHUB_CLANG_VERSION libc++-$GITHUB_CLANG_VERSION-dev libc++abi-$GITHUB_CLANG_VERSION-dev
         sudo apt-get install mesa-common-dev libxi-dev libxxf86vm-dev
+        sudo apt-get install cmake ninja-build
 
         # For dawn
         sudo apt-get install libxrandr-dev libxinerama-dev libxcursor-dev libxi-dev libx11-xcb-dev

.github/actions/web-prereq/action.yml

@@ -8,7 +8,7 @@ runs:
       uses: actions/cache@v4 # Use a specific version
       with:
         path: emsdk
-        key: ${{ runner.os }}-emsdk-${{ env.GITHUB_EMSDK_VERSION }}
+        key: ${{ runner.os }}-${{ runner.arch }}-emsdk-${{ env.GITHUB_EMSDK_VERSION }}
     - name: Install Web Prerequisites
       shell: bash
       run: |

.github/workflows/postsubmit.yml

@@ -13,7 +13,6 @@ jobs:
     # We intentially use a larger runner here to enable larger disk space
     # (standard linux runner will fail on disk space and faster build time).
     runs-on: 'ubuntu-24.04-4core'
-
     steps:
       - uses: actions/checkout@v4.1.6
         with:
@@ -27,7 +26,6 @@ jobs:
   build-ios:
     name: build-ios
     runs-on: 'macos-14'
-
     steps:
       - uses: actions/checkout@v4.1.6
         with:
@@ -46,8 +44,7 @@ jobs:
 
   build-linux:
     name: build-linux
-    runs-on: 'ubuntu-24.04-4core'
-
+    runs-on: 'arm-ubuntu-24.04-16core'
     steps:
       - uses: actions/checkout@v4.1.6
         with:
@@ -58,13 +55,12 @@ jobs:
           cd build/linux && printf "y" | ./build.sh continuous
       - uses: actions/upload-artifact@v4
         with:
-          name: filament-linux
-          path: out/filament-release-linux.tgz
+          name: filament-arm-linux
+          path: out/filament-release-arm-linux.tgz
 
   build-mac:
     name: build-mac
     runs-on: 'macos-14'
-
     steps:
       - uses: actions/checkout@v4.1.6
         with:
@@ -80,8 +76,7 @@ jobs:
 
   build-web:
     name: build-web
-    runs-on: 'ubuntu-24.04'
-
+    runs-on: 'arm-ubuntu-24.04-16core'
     steps:
       - uses: actions/checkout@v4.1.6
         with:

.github/workflows/presubmit.yml

@@ -76,7 +76,7 @@ jobs:
 
   build-desktop-linux:
     name: build-linux
-    runs-on: 'ubuntu-24.04-4core'
+    runs-on: 'arm-ubuntu-24.04-16core'
     needs: [check-verification]
     if: >
       always() && !cancelled() &&
@@ -189,7 +189,7 @@ jobs:
 
   build-web:
     name: build-web
-    runs-on: 'ubuntu-24.04-4core'
+    runs-on: 'arm-ubuntu-24.04-16core'
     needs: [check-verification]
     if: >
       always() && !cancelled() &&
@@ -317,7 +317,7 @@ jobs:
 
   validate-wgsl-webgpu:
     name: validate-wgsl-webgpu
-    runs-on: 'ubuntu-24.04-4core'
+    runs-on: 'arm-ubuntu-24.04-16core'
     needs: [check-verification]
     if: >
       always() && !cancelled() &&

.github/workflows/release.yml

@@ -63,6 +63,39 @@ jobs:
             const globber = await glob.create('out/*.tgz');
             await upload({ github, context }, await globber.glob(), TAG);
 
+  build-arm-linux:
+    name: build-arm-linux
+    runs-on: 'arm-ubuntu-24.04-16core'
+    if: github.event_name == 'release' || github.event.inputs.platform == 'desktop'
+    steps:
+      - name: Decide Git ref
+        id: git_ref
+        run: |
+          REF=${RELEASE_TAG:-${GITHUB_REF}}
+          TAG=${REF##*/}
+          echo "ref=${REF}" >> $GITHUB_OUTPUT
+          echo "tag=${TAG}" >> $GITHUB_OUTPUT
+      - uses: actions/checkout@v4.1.6
+        with:
+          ref: ${{ steps.git_ref.outputs.ref }}
+      - uses: ./.github/actions/linux-prereq
+      - name: Run build script
+        env:
+          TAG: ${{ steps.git_ref.outputs.tag }}
+        run: |
+          cd build/linux && printf "y" | ./build.sh release
+          cd ../..
+          mv out/filament-release-linux.tgz out/filament-${TAG}-arm-linux.tgz
+      - uses: actions/github-script@v6
+        env:
+          TAG: ${{ steps.git_ref.outputs.tag }}
+        with:
+          script: |
+            const upload = require('./build/common/upload-release-assets');
+            const { TAG } = process.env;
+            const globber = await glob.create('out/*.tgz');
+            await upload({ github, context }, await globber.glob(), TAG);
+
   build-mac:
     name: build-mac
     runs-on: macos-14-xlarge
@@ -99,7 +132,7 @@ jobs:
 
   build-web:
     name: build-web
-    runs-on: 'ubuntu-24.04-16core'
+    runs-on: 'arm-ubuntu-24.04-16core'
     if: github.event_name == 'release' || github.event.inputs.platform == 'web'
 
     steps: