cortexm-linux/.github/workflows/main.yml at fae02e5956705f9c9d67afbdb6e53c28943d9411 · jserv/cortexm-linux · GitHub

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name: Build

on:
  push:
    branches: [main, master]
  pull_request:
  workflow_dispatch:

env:
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

permissions:
  contents: read

concurrency:
  group: build-${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build image
    runs-on: ubuntu-24.04
    timeout-minutes: 360

    steps:
      - name: Check out sources
        uses: actions/checkout@v6

      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends \
            bc \
            bison \
            build-essential \
            ca-certificates \
            cpio \
            flex \
            git \
            libelf-dev \
            libncurses-dev \
            libssl-dev \
            texinfo \
            wget \
            xz-utils

      - name: Restore source downloads cache
        id: restore-downloads
        uses: actions/cache/restore@v5
        with:
          path: downloads
          key: downloads-linux-${{ hashFiles('build.sh') }}

      - name: Restore build workspace cache
        id: restore-workspace
        uses: actions/cache/restore@v5
        with:
          path: |
            .build-state
            bootwrapper
            busybox-*
            elf2flt-*
            gcc-*
            linux-*
            rootfs
            toolchain
            uClibc-ng-*
            binutils-*
          key: workspace-linux-${{ github.ref_name }}-${{ hashFiles('build.sh', 'configs/**', 'patches/**', 'tools/**') }}
          restore-keys: |
            workspace-linux-${{ github.ref_name }}-
            workspace-linux-${{ github.base_ref }}-
            workspace-linux-main-

      - name: Build image
        id: build-image
        env:
          QUIET: 1
        run: ./build.sh

      - name: Build diagnostic subsystem rollup
        if: success()
        env:
          QUIET: 1
          KERNEL_DEBUG_INFO: reduced
        run: ./build.sh linux bootwrapper

      - name: Render subsystem rollup markdown
        if: success()
        run: |
          python3 scripts/rollup-to-markdown.py \
            --rollup profiles/kernel-pgo/none/subsystem-rollup.txt \
            --budget-status profiles/kernel-pgo/none/subsystem-budget.txt \
            --top 12 \
            --output profiles/kernel-pgo/none/subsystem-rollup.md

      - name: Add subsystem rollup to step summary
        if: success()
        run: cat profiles/kernel-pgo/none/subsystem-rollup.md >> "$GITHUB_STEP_SUMMARY"

      - name: Save source downloads cache
        if: always() && steps.restore-downloads.outputs.cache-hit != 'true'
        uses: actions/cache/save@v5
        with:
          path: downloads
          key: downloads-linux-${{ hashFiles('build.sh') }}

      - name: Save build workspace cache
        if: always() && steps.restore-workspace.outputs.cache-hit != 'true' && steps.build-image.outcome == 'success'
        uses: actions/cache/save@v5
        with:
          path: |
            .build-state
            bootwrapper
            busybox-*
            elf2flt-*
            gcc-*
            linux-*
            rootfs
            toolchain
            uClibc-ng-*
            binutils-*
          key: workspace-linux-${{ github.ref_name }}-${{ hashFiles('build.sh', 'configs/**', 'patches/**', 'tools/**') }}

      - name: Summarize cache reuse
        if: always()
        run: |
          {
            echo "### Cache summary"
            echo
            echo "- downloads cache hit: ${{ steps.restore-downloads.outputs.cache-hit }}"
            echo "- workspace cache hit: ${{ steps.restore-workspace.outputs.cache-hit }}"
          } >> "$GITHUB_STEP_SUMMARY"

      - name: Upload build image
        if: success()
        uses: actions/upload-artifact@v7
        with:
          name: bootable-image
          compression-level: 0
          path: bootwrapper/linux.axf

      - name: Upload build logs
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: build-logs
          compression-level: 0
          path: |
            logs
          if-no-files-found: ignore

      - name: Upload subsystem rollup artifacts
        if: success()
        uses: actions/upload-artifact@v7
        with:
          name: subsystem-rollup
          compression-level: 0
          path: |
            profiles/kernel-pgo/none/subsystem-rollup.txt
            profiles/kernel-pgo/none/subsystem-rollup.md
            profiles/kernel-pgo/none/subsystem-budget.txt
            profiles/kernel-pgo/none/subsystem-rollup-tree.html
            profiles/kernel-pgo/none/subsystem-rollup-deep.html
            profiles/kernel-pgo/none/subsystem-rollup-bars.svg
          if-no-files-found: warn

  qemu:
    name: Validate boot in QEMU
    runs-on: ubuntu-24.04
    timeout-minutes: 30
    needs: build

    steps:
      - name: Check out sources
        uses: actions/checkout@v6

      - name: Install QEMU dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends \
            expect \
            qemu-system-arm

      - name: Download build image
        uses: actions/download-artifact@v5
        with:
          name: bootable-image
          path: bootwrapper

      - name: Validate boot in QEMU
        run: scripts/validate-qemu.sh bootwrapper/linux.axf qemu.log

      - name: Upload QEMU logs
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: qemu-logs
          compression-level: 0
          path: |
            qemu.log
          if-no-files-found: ignore