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Add workflow for building Dawn
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‎.github/workflows/dawn.yaml‎

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name: Build Dawn WebGPU
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on:
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workflow_dispatch:
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inputs:
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channel:
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description: "Chromium channel for Dawn"
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required: false
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default: "canary"
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type: choice
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options:
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- stable
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- beta
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- canary
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env:
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DAWN_CHANNEL: ${{ github.event.inputs.channel || 'canary' }}
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jobs:
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get-dawn-source:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python
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uses: actions/setup-python@v4
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with:
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python-version: "3.11"
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- name: Install dependencies
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run: |
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python -m pip install --upgrade pip
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cd Dawn
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pip install -r requirements.txt
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- name: Get Dawn source
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run: |
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cd Dawn
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python ci_build_dawn.py get-dawn --channel ${{ env.DAWN_CHANNEL }}
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- name: Upload Dawn source
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uses: actions/upload-artifact@v4
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with:
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name: dawn-source
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path: Dawn/dawn_source/
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retention-days: 1
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- name: Read Dawn version
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id: read-version
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run: |
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cd Dawn
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value=$(jq -r '.chromium_channel' dawn_version.json)
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echo "chromium_channel=$value" >> $GITHUB_OUTPUT
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value=$(jq -r '.chromium_dawn_version' dawn_version.json)
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echo "chromium_dawn_version=$value" >> $GITHUB_OUTPUT
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value=$(jq -r '.chromium_dawn_hash' dawn_version.json)
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echo "chromium_dawn_hash=$value" >> $GITHUB_OUTPUT
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value=$(jq -r '.chromium_dawn_suffix' dawn_version.json)
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echo "chromium_dawn_suffix=$value" >> $GITHUB_OUTPUT
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build-dawn:
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needs: get-dawn-source
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strategy:
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matrix:
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include:
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- platform: ubuntu-latest
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target: linux
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python-version: "3.11"
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- platform: macos-latest
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target: macosx
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python-version: "3.11"
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# - platform: windows-latest
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# target: windows
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# python-version: "3.11"
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- platform: macos-latest
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target: iphoneos
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python-version: "3.11"
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- platform: macos-latest
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target: iphonesimulator
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python-version: "3.11"
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runs-on: ${{ matrix.platform }}
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python
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uses: actions/setup-python@v4
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with:
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python-version: ${{ matrix.python-version }}
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- name: Install dependencies
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run: |
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python -m pip install --upgrade pip
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cd Dawn
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pip install -r requirements.txt
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- name: Download Dawn source
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uses: actions/download-artifact@v4
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with:
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name: dawn-source
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path: Dawn/
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- name: Build Dawn for ${{ matrix.target }}
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run: |
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cd Dawn
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python ci_build_dawn.py build-target --target ${{ matrix.target }}
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- name: Upload build artifacts
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uses: actions/upload-artifact@v4
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with:
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name: dawn-build-${{ matrix.target }}
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path: Dawn/builds/
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retention-days: 1
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create-bundle:
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needs: [build-dawn, get-dawn-source]
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Set up Python
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uses: actions/setup-python@v4
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with:
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python-version: "3.11"
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- name: Install dependencies
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run: |
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python -m pip install --upgrade pip
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cd Dawn
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pip install -r requirements.txt
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- name: Download all build artifacts
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uses: actions/download-artifact@v4
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with:
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path: Dawn/builds/
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- name: Create artifact bundle
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run: |
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cd Dawn
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python ci_build_dawn.py bundle
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- name: Upload bundle artifact
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uses: actions/upload-artifact@v4
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with:
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name: dawn-webgpu-bundle
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path: Dawn/dawn_webgpu_${{needs.get-dawn-source.outputs.chromium_dawn_suffix}}.zip
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retention-days: 30
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create-release:
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needs: [create-bundle, get-dawn-source]
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runs-on: ubuntu-latest
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if: startsWith(github.ref, 'refs/tags/')
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Download bundle artifact
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uses: actions/download-artifact@v4
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with:
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name: dawn-webgpu-bundle
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path: dawn-bundle/
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- name: Create Release
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uses: actions/create-release@v1
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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with:
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release_name: Dawn WebGPU from Chromium ${{ needs.get-dawn-source.outputs.chromium_dawn_version }}
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body: |
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Dawn WebGPU build matching Chromium ${{ needs.get-dawn-source.outputs.chromium_dawn_version }}.
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Built from Dawn hash: ${{ needs.get-dawn-source.outputs.chromium_dawn_hash }}
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This release contains pre-built Dawn WebGPU libraries for multiple platforms:
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- linux (x86_64)
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- macosx (x86_64 + ARM64)
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- iphoneos (ARM64)
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- iphonesimulator (x86_64)
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Built from Chromium channel: ${{ env.DAWN_CHANNEL }}
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draft: false
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prerelease: false
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- name: Upload Release Assets
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run: |
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TAG="dawn-chromium-${{env.DAWN_CHANNEL}}-${{needs.get-dawn-source.outputs.chromium_dawn_version}}"
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if gh release view "$TAG" >/dev/null 2>&1; then
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echo "Release '$TAG' already exists. Skipping upload."
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else
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echo "Uploading to release: $TAG"
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cd dawn-bundle
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gh release upload $TAG dawn_webgpu_${{needs.get-dawn-source.outputs.chromium_dawn_suffix}}.zip --clobber
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fi
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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