Switch Zephyr nightly workflow to self-hosted runner

Signed-off-by: quic-areg <aregmi@qti.qualcomm.com>

Author: quic-areg

.github/workflows/zephyr-nightly.yml

@@ -1,7 +1,8 @@
 name: Zephyr Nightly with ELD
 
 on:
-  # pull_request: {} # Uncomment only to test this WF file update.
+  # FIXME: recomment
+  pull_request: {} # Uncomment only to test this WF file update.
   schedule:
     - cron: '0 9 * * *'
   workflow_dispatch:
@@ -12,7 +13,7 @@ permissions:
 jobs:
   zephyr-build-and-test:
     if: github.repository == 'qualcomm/eld' || github.event_name == 'workflow_dispatch'
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     env:
       ZEPHYR_WORKSPACE: ${{ github.workspace }}/zephyrproject
 
@@ -22,30 +23,59 @@ jobs:
         with:
           path: llvm-project/llvm/tools/eld
 
-      - name: Record pre-build entry
-        if: github.event_name == 'schedule'
-        uses: ./llvm-project/llvm/tools/eld/.github/workflows/BuildStatusDataRecorder
-        with:
-          enabled: true
-          project: "llvm-project/llvm/tools/eld"
-          stage: "pre-"
-          workflow-name: "zephyr"
-          record-mode: "record"
-          status: "fail"
-          run-id: ${{github.run_id}}
-          arch-name: "riscv32"
-          branch-name: "main"
+      - name: Clean workspace
+        run: |
+          rm -rf ${{ env.ZEPHYR_WORKSPACE }}
+          rm -rf ${{ github.workspace }}/zephyr-sdk-*
+          rm -rf ${{ github.workspace }}/.cmake
 
-      - name: Install dependencies
+      # FIXME: remove this step once self-hosted environment is confirmed
+      - name: Check runner environment
         run: |
-          export DEBIAN_FRONTEND=noninteractive
-          sudo apt-get update
-          sudo apt-get install -y --no-install-recommends \
-            libc++-dev libc++abi-dev libclang-rt-20-dev \
-            git cmake ninja-build gperf dfu-util device-tree-compiler wget \
-            python3-dev python3-pip python3-setuptools python3-tk python3-venv python3-wheel xz-utils \
-            file make gcc gcc-multilib g++-multilib libsdl2-dev libmagic1 qemu-system-riscv32
+          export PATH="/opt/qemu/bin:$PATH"
+          echo "=== System ==="
+          uname -a
+          cat /etc/os-release 2>/dev/null | head -5 || true
+          echo ""
+          echo "=== Python ==="
+          python3 --version 2>&1 || echo "MISSING: python3"
+          python3 -m venv --help >/dev/null 2>&1 && echo "python3-venv: OK" || echo "MISSING: python3-venv"
+          python3 -m pip --version 2>&1 || echo "MISSING: python3-m-pip"
+          echo ""
+          echo "=== Build tools ==="
+          cmake --version 2>&1 | head -1 || echo "MISSING: cmake"
+          ninja --version 2>&1 || echo "MISSING: ninja"
+          dtc --version 2>&1 || echo "MISSING: dtc (device-tree-compiler)"
+          gperf --version 2>&1 | head -1 || echo "MISSING: gperf"
+          echo ""
+          echo "=== QEMU ==="
+          qemu-system-riscv32 --version 2>&1 | head -1 || echo "MISSING: qemu-system-riscv32"
+          qemu-system-riscv64 --version 2>&1 | head -1 || echo "MISSING: qemu-system-riscv64"
+          echo ""
+          echo "=== Utilities ==="
+          git --version 2>&1 || echo "MISSING: git"
+          curl --version 2>&1 | head -1 || echo "MISSING: curl"
+          xz --version 2>&1 | head -1 || echo "MISSING: xz"
 
+      # FIXME: remove once network issues are resolved
+      - name: Debug network access
+        run: |
+          echo "=== Direct GitHub access ==="
+          curl -sI https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.0/toolchain_gnu_linux-x86_64_riscv64-zephyr-elf.tar.xz 2>&1 | head -5
+          echo ""
+          echo "=== Follow redirects ==="
+          curl -sIL https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.0/toolchain_gnu_linux-x86_64_riscv64-zephyr-elf.tar.xz 2>&1 | head -15
+          echo ""
+          echo "=== Actual download test (first 1KB) ==="
+          curl -sL https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.0/toolchain_gnu_linux-x86_64_riscv64-zephyr-elf.tar.xz -o /dev/null -w "HTTP %{http_code}, %{size_download} bytes\n" -r 0-1023
+          echo ""
+          echo "=== Proxy env ==="
+          env | grep -i proxy || echo "No proxy vars set"
+
+      - name: Set up Zephyr workspace
+        env:
+          HOME: ${{ github.workspace }}
+        run: |
           python3 -m venv ${{ env.ZEPHYR_WORKSPACE }}/.venv
           . ${{ env.ZEPHYR_WORKSPACE }}/.venv/bin/activate
           python -m pip install -U pip
@@ -65,13 +95,32 @@ jobs:
         run: |
           echo "ZEPHYR_VENV=${{ env.ZEPHYR_WORKSPACE }}/.venv" >> $GITHUB_ENV
 
+      # FIXME: remove once network issues are resolved
+      - name: Debug network access
+        run: |
+          echo "=== Direct GitHub access ==="
+          curl -sI https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.0/toolchain_gnu_linux-x86_64_riscv64-zephyr-elf.tar.xz 2>&1 | head -5
+          echo ""
+          echo "=== Follow redirects ==="
+          curl -sIL https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.0/toolchain_gnu_linux-x86_64_riscv64-zephyr-elf.tar.xz 2>&1 | head -15
+          echo ""
+          echo "=== Actual download test (first 1KB) ==="
+          curl -sL https://github.com/zephyrproject-rtos/sdk-ng/releases/download/v1.0.0/toolchain_gnu_linux-x86_64_riscv64-zephyr-elf.tar.xz -o /dev/null -w "HTTP %{http_code}, %{size_download} bytes\n" -r 0-1023
+          echo ""
+          echo "=== Proxy env ==="
+          env | grep -i proxy || echo "No proxy vars set"
+
       - name: Install Zephyr SDK
+        env:
+          HOME: ${{ github.workspace }}
         run: |
           cd ${{ env.ZEPHYR_WORKSPACE }}
           . ${{ env.ZEPHYR_WORKSPACE }}/.venv/bin/activate
           west sdk install -t riscv64-zephyr-elf
 
       - name: Install RISC-V toolchain payload
+        env:
+          HOME: ${{ github.workspace }}
         run: |
           SDK_DIR=$(ls -d "$HOME"/zephyr-sdk-* 2>/dev/null | head -n 1)
           if [ -z "$SDK_DIR" ]; then
@@ -156,7 +205,6 @@ jobs:
           ./scripts/twister -W -p qemu_riscv32 \
             --inline-logs \
             --timestamps \
-            -j 2 \
             -v \
             -x ZEPHYR_SDK_INSTALL_DIR=${{ env.ELD_SDK_DIR }} \
             -x ZEPHYR_TOOLCHAIN_VARIANT=llvm \
@@ -202,3 +250,10 @@ jobs:
           run-id: ${{github.run_id}}
           arch-name: "riscv32"
           branch-name: "main"
+
+      - name: Clean workspace
+        if: always()
+        run: |
+          rm -rf ${{ env.ZEPHYR_WORKSPACE }}
+          rm -rf ${{ github.workspace }}/zephyr-sdk-*
+          rm -rf ${{ github.workspace }}/.cmake