build-kernel-release.yml

name: Build and Release OnePlus Kernels

permissions:
  contents: write
  actions: write

on:
  workflow_dispatch:
    inputs:
      make_release:
        description: 'Do you want to create a release?'
        required: true
        type: boolean
        default: false
      op_model:
        description: 'Select the OnePlus kernels to build'
        required: true
        type: choice
        options:
          - A14+15+16
          - A15+16
          - A14+15
          - A16
          - A15
          - A14
          - android16-6.12
          - android15-6.6
          - android14-6.1
          - android13-5.15
          - android12-5.10
        default: A14+15+16
      ksu_options:
        description: 'Enter KernelSU build json'
        required: true
        type: string
        default: '[{"type":"ksun","hash":"dev"}]'
      optimize_level:
        description: "Compiler optimization level"
        required: true
        type: choice
        options: [O2, O3]
        default: O2
      clean_build:
        description: 'Clean build (no ccache)'
        type: boolean
        default: false
      debug:
        description: 'Enable debug mode: dumping debug related artifacts and show some debug logs'
        required: false
        type: boolean
        default: false
      mirror_toolchains:
        description: 'Do you want to sync toolchains before build? [99% runs not required]'
        required: false
        type: boolean
        default: false
      build_timestamp:
        description: 'Custom kernel build timestamp for uname -a (e.g. "Tue Feb 10 10:01:02 UTC 2026"). Leave empty for current time.'
        type: string
        default: ''
      android12-5_10_susfs_branch_or_commit:
        description: 'Enter SusFS Branch or commit hash for android12-5.10'
        type: string
        default: ''
      android13-5_15_susfs_branch_or_commit:
        description: 'Enter SusFS Branch or commit hash for android13-5.15'
        type: string
        default: ''
      android14-6_1_susfs_branch_or_commit:
        description: 'Enter SusFS Branch or commit hash for android14-6.1'
        type: string
        default: ''
      android15-6_6_susfs_branch_or_commit:
        description: 'Enter SusFS Branch or commit hash for android15-6.6'
        type: string
        default: ''
      android16-6_12_susfs_branch_or_commit:
        description: 'Enter SusFS Branch or commit hash for android16-6.12'
        type: string
        default: ''

jobs:
  set-op-model:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
      device_count: ${{ steps.set-matrix.outputs.count }}
      active_gki_keys: ${{ steps.set-matrix.outputs.active_gki_keys }}
      susfs_hash_android12_5_10: ${{ steps.set-matrix.outputs.susfs_hash_android12_5_10 }}
      susfs_hash_android13_5_15: ${{ steps.set-matrix.outputs.susfs_hash_android13_5_15 }}
      susfs_hash_android14_6_1:  ${{ steps.set-matrix.outputs.susfs_hash_android14_6_1 }}
      susfs_hash_android15_6_6:  ${{ steps.set-matrix.outputs.susfs_hash_android15_6_6 }}
      susfs_hash_android16_6_12: ${{ steps.set-matrix.outputs.susfs_hash_android16_6_12 }}
      ksu_resolved_hash:    ${{ steps.set-matrix.outputs.ksu_resolved_hash }}
      ksu_options_normalized: ${{ steps.set-matrix.outputs.ksu_options_normalized }}
      susfs_base_version: ${{ steps.set-matrix.outputs.susfs_base_version }}
    env:
      GH_TOKEN: ${{ github.token }}
      GH_HTTP_TIMEOUT: 600
    steps:
      - name: 📥 Checkout Code (to access configs/)
        uses: actions/checkout@v6
        with:
          sparse-checkout: |
            configs/
          sparse-checkout-cone-mode: false

      - name: 🔍 Generate build matrix
        id: set-matrix
        shell: bash
        run: |
          set -euo pipefail
          echo "::group::Matrix generation"
          
          input="${{ github.event.inputs.op_model }}"
          ksu_options_raw='${{ github.event.inputs.ksu_options }}'
          if ! ksu_options_normalized=$(echo "$ksu_options_raw" | jq -c 'map(if .type then .type |= ascii_upcase | if .hash == null then if .type == "KSUN" then .hash = "dev" elif .type == "KSU" then .hash = "main" else .hash end else . end else error("No type found") end)' 2>&1); then
            echo "::error::ksu_options validation failed: $ksu_options_normalized"
            exit 1
          fi
          
          echo "ksu_options_normalized=$ksu_options_normalized" >> $GITHUB_OUTPUT
          
          echo "[" > matrix.json
          mapfile -t all_json_files < <(find configs/ -name "*.json" -print0 | xargs -0 -n1)
          for i in "${!all_json_files[@]}"; do
            file="${all_json_files[$i]}"
            if [ -f "$file" ]; then
              jq -r '.' "$file" >> matrix.json
              if [ $((i+1)) -lt ${#all_json_files[@]} ]; then
                echo "," >> matrix.json
              fi
            fi
          done
          echo "]" >> matrix.json
          
          jq_filter="."
          
          case "$input" in
            A14+15+16)
              ;;
            A15+16)
              jq_filter="map(select(.os_version == \"A15\" or .os_version == \"A16\"))"
              ;;
            A14+15)
              jq_filter="map(select(.os_version == \"A14\" or .os_version == \"A15\"))"
              ;;
            A16)
              jq_filter="map(select(.os_version == \"A16\"))"
              ;;
            A15)
              jq_filter="map(select(.os_version == \"A15\"))"
              ;;
            A14)
              jq_filter="map(select(.os_version == \"A14\"))"
              ;;
            android*-*.*)
              # Extract android version and kernel version
              IFS='-' read -r av kv <<< "$input"
              
              # Build android*-* only for A15 and A16
              jq_filter="map(select(.os_version == \"A15\" or .os_version == \"A16\")) | map(select(.android_version == \"$av\" and .kernel_version == \"$kv\"))"
              
              echo "ℹ️  Android-Kernel filter applied: $av-$kv"
              echo "   Restricted to: A15 and A16 only"
              ;;
            *)
              echo "::warning::Unknown input '$input'. Using empty filter."
              jq_filter="map(select(false))"
              ;;
          esac
          
          filtered=$(jq -c "$jq_filter" matrix.json)
          count=$(jq 'length' <<<"$filtered")
          
          filtered=$(echo "$filtered" | jq '
            sort_by(
              (.os_version | gsub("A"; "") | tonumber) * -1,
              .model
            )
          ')
          
          if [ "$count" -eq 0 ]; then
            echo "::error::No config files found for input '$input' after applying filters!"
            echo ""
            echo "Available configurations:"
            jq -r '.[] | "  - \(.model) (\(.os_version), \(.android_version)-\(.kernel_version))"' matrix.json
            exit 1
          fi
          
          echo "$filtered" | jq '.' > matrix.json
          echo "$ksu_options_normalized" > ksu_temp.json
          
          # For each device + each ksu option → one combined entry
          merged_matrix=$(jq -n \
            --slurpfile devices matrix.json \
            --slurpfile ksu_list ksu_temp.json \
            '[ $devices[0][] as $dev | $ksu_list[0][] as $ksu | ($dev + {ksu_type: $ksu.type, ksu_hash: $ksu.hash}) ]')
          
          rm ksu_temp.json
          final_count=$(echo "$merged_matrix" | jq 'length')
          
          echo "✅ Found $final_count device(s) to build"
          echo ""
          echo "Selected devices:"
          jq -r '.[] | "  - \(.model) (\(.os_version), \(.android_version)-\(.kernel_version), \(.ksu_type) - \(.ksu_hash))"' <<<"$merged_matrix"
          
          echo "count=$count" >> "$GITHUB_OUTPUT"
          
          ksu_type=$(echo "$ksu_options_normalized" | jq -r '.[0].type')
          ksu_ref=$(echo "$ksu_options_normalized" | jq -r '.[0].hash')
          
          if [ "$ksu_type" == "KSUN" ]; then
            KSU_REPO_OWNER="KernelSU-Next"
            KSU_REPO_NAME="KernelSU-Next"
          else
            KSU_REPO_OWNER="tiann"
            KSU_REPO_NAME="KernelSU"
          fi
          
          HEAD_REF="refs/heads/${ksu_ref}"
          TAG_REF="refs/tags/${ksu_ref}"
          
          QUERY='query($owner: String!, $name: String!, $headRef: String!, $tagRef: String!, $objRef: String!) {
            repository(owner: $owner, name: $name) {
              hb: ref(qualifiedName: $headRef) { t: target { ... on Commit { o: oid } } }
              ht: ref(qualifiedName: $tagRef) { t: target { ... on Commit { o: oid } } }
              ho: object(expression: $objRef) { ... on Commit { o: oid } }
            }
          }'
          
          MAX_RETRIES=3
          RETRY_COUNT=0
          RETRY_DELAY=5 # Seconds to wait between retries
          
          echo "Resolving $ksu_type hash ($ksu_ref)..."
          
          until [ $RETRY_COUNT -ge $MAX_RETRIES ]; do
            RESULT=$(gh api graphql -f query="$QUERY" -f owner="$KSU_REPO_OWNER" -f name="$KSU_REPO_NAME" -f headRef="$HEAD_REF" -f tagRef="$TAG_REF" -f objRef="$ksu_ref" 2>/dev/null)
            EXIT_CODE=$?
            
            if [ $EXIT_CODE -eq 0 ] && [ ! -z "$RESULT" ]; then
              echo "  ✅ API Success"
              break
            fi
            
            RETRY_COUNT=$((RETRY_COUNT + 1))
            echo "::warning::API failed (Attempt $RETRY_COUNT/$MAX_RETRIES). Retrying in ${RETRY_DELAY}s..."
            sleep $RETRY_DELAY
          done
          
          if [ $RETRY_COUNT -eq $MAX_RETRIES ]; then
            echo "::error::GitHub API unreachable. Cannot validate $ksu_ref"
            exit 1
          fi
          
          resolved_sha=$(echo "$RESULT" | jq -r '.data.repository | (.hb.t.o // .ht.t.o // .ho.o // "unknown")')
          
          if [ "$resolved_sha" == "unknown" ]; then
            echo "::error::Ref/Hash '$ksu_ref' does not exist in $KSU_REPO_OWNER/$KSU_REPO_NAME"
            exit 1
          fi
          
          echo "  ✅ Resolved: $ksu_type/$ksu_ref → $resolved_sha"
          echo "ksu_resolved_hash=$resolved_sha" >> "$GITHUB_OUTPUT"
          
          # Inject ksu_resolved_hash into each device in the matrix
          merged_matrix=$(echo "$merged_matrix" | jq  --arg resolved_sha "$resolved_sha" 'map(.ksu_resolved_hash = $resolved_sha)')
          
          # SUSFS hash fetch
          SUSFS_REPO="https://gitlab.com/simonpunk/susfs4ksu.git"
          GITLAB_PROJECT_PATH="simonpunk/susfs4ksu"
          
          declare -A default_branches=(
            ["android12-5.10"]="gki-android12-5.10"
            ["android13-5.15"]="gki-android13-5.15"
            ["android14-6.1"]="gki-android14-6.1"
            ["android15-6.6"]="gki-android15-6.6"
            ["android16-6.12"]="gki-android16-6.12"
          )
          
          declare -A user_inputs=(
            ["android12-5.10"]="${{ inputs.android12-5_10_susfs_branch_or_commit }}"
            ["android13-5.15"]="${{ inputs.android13-5_15_susfs_branch_or_commit }}"
            ["android14-6.1"]="${{ inputs.android14-6_1_susfs_branch_or_commit }}"
            ["android15-6.6"]="${{ inputs.android15-6_6_susfs_branch_or_commit }}"
            ["android16-6.12"]="${{ inputs.android16-6_12_susfs_branch_or_commit }}"
          )
          
          mapfile -t active_keys < <(
            echo "$merged_matrix" \
              | jq -r '.[] | select(.susfs == true) | "\(.android_version)-\(.kernel_version)"' \
              | sort -u
          )
          
          echo "🔍 Resolving SUSFS hashes for: ${active_keys[*]:-none}"
          
          declare -A susfs_hashes
          declare -A susfs_versions_per_key
          
          for key in "${active_keys[@]}"; do
            default_val="${default_branches[$key]}"
            user_val="${user_inputs[$key]:-$default_val}"
            
            # Build GraphQL query — include blob fetch only when releasing
            HASH_QUERY="{ project(fullPath: \"${GITLAB_PROJECT_PATH}\") { repository { ch: commit(ref: \"${user_val}\") { sha } } } }"
            RELEASE_QUERY="{ project(fullPath: \"${GITLAB_PROJECT_PATH}\") { repository { ch: commit(ref: \"${user_val}\") { sha } blobs(paths: [\"kernel_patches/include/linux/susfs.h\"], ref: \"${user_val}\") { nodes { rawBlob } } } } }"
            
            if [ "${{ inputs.make_release }}" = "true" ]; then
              GL_QUERY="$RELEASE_QUERY"
            else
              GL_QUERY="$HASH_QUERY"
            fi
            
            MAX_RETRIES=3
            RETRY_COUNT=0
            RETRY_DELAY=5
            resolved=""
            
            until [ $RETRY_COUNT -ge $MAX_RETRIES ]; do
              RESPONSE=$(curl -s --fail -G "https://gitlab.com/api/graphql" --data-urlencode "query=$GL_QUERY")
              EXIT_CODE=$?
              
              if [ $EXIT_CODE -eq 0 ] && [ -n "$RESPONSE" ]; then
                resolved=$(echo "$RESPONSE" | jq -r '.data.project.repository.ch.sha // empty')
                if [ -n "$resolved" ] && [ "$resolved" != "null" ]; then
                  echo "  ✅ Query for $key Success"
                  
                  if [ "${{ inputs.make_release }}" = "true" ]; then
                    extracted=$(echo "$RESPONSE" | jq -r '.data.project.repository.blobs.nodes[0].rawBlob // empty' | grep '#define SUSFS_VERSION' | awk -F'"' '{print $2}')
                    susfs_versions_per_key[$key]="${extracted:-unknown}"
                    echo "  ✅ $key → SUSFS_VERSION = ${extracted:-unknown}"
                  fi
                  
                  break
                fi
              fi
              
              RETRY_COUNT=$((RETRY_COUNT + 1))
              echo "::warning::GitLab GraphQL API failed (Attempt $RETRY_COUNT/$MAX_RETRIES). Retrying..."
              sleep $RETRY_DELAY
            done
            
            # Final Validation — SUSFS hash
            if [ -z "$resolved" ] || [ "$resolved" = "null" ]; then
              echo "::error::Could not resolve SUSFS ref '$user_val' for $key on GitLab."
              exit 1
            fi
            
            # Final Validation — SUSFS version
            if [ "${{ inputs.make_release }}" = "true" ] && [ "${susfs_versions_per_key[$key]:-unknown}" = "unknown" ]; then
              echo "::error::Could not extract SUSFS_VERSION from susfs.h for '$key' after $MAX_RETRIES attempts. Cannot proceed with release."
              exit 1
            fi
            
            susfs_hashes["$key"]="$resolved"
            echo "  ✅ Resolved: $key → $resolved"
          done
          
          # Write CSV list of active GKI versions
          active_gki_keys_csv=$(IFS=','; echo "${active_keys[*]:-}")
          echo "active_gki_keys=$active_gki_keys_csv" >> "$GITHUB_OUTPUT"
          
          # Write hash to GITHUB_OUTPUT
          echo "susfs_hash_android12_5_10=${susfs_hashes[android12-5.10]:-unknown}" >> "$GITHUB_OUTPUT"
          echo "susfs_hash_android13_5_15=${susfs_hashes[android13-5.15]:-unknown}" >> "$GITHUB_OUTPUT"
          echo "susfs_hash_android14_6_1=${susfs_hashes[android14-6.1]:-unknown}"   >> "$GITHUB_OUTPUT"
          echo "susfs_hash_android15_6_6=${susfs_hashes[android15-6.6]:-unknown}"   >> "$GITHUB_OUTPUT"
          echo "susfs_hash_android16_6_12=${susfs_hashes[android16-6.12]:-unknown}" >> "$GITHUB_OUTPUT"
          
          # SUSFS_VERSION — only when releasing
          if [ "${{ inputs.make_release }}" = "true" ]; then
            susfs_base_version="unknown"
            for key in "${active_keys[@]}"; do
              ver="${susfs_versions_per_key[$key]:-unknown}"
              if [ "$ver" != "unknown" ]; then
                susfs_base_version="$ver"
                break
              fi
            done
            
            if [ "$susfs_base_version" = "unknown" ]; then
              echo "::error::Could not extract SUSFS_VERSION from susfs.h for any active GKI key. Cannot proceed with release."
              exit 1
            fi
            
            # make_release=true: mismatch is a hard error — prevents wrong tag
            for key in "${active_keys[@]}"; do
              key_ver="${susfs_versions_per_key[$key]:-unknown}"
              if [ "$key_ver" != "$susfs_base_version" ]; then
                echo "::error::SUSFS version mismatch: '$key' has '$key_ver', expected '$susfs_base_version'. Align refs before releasing."
                exit 1
              fi
            done
            
            echo "susfs_base_version=$susfs_base_version" >> "$GITHUB_OUTPUT"
          fi
          
          # Inject susfs_resolved_hash into each device in the matrix
          susfs_hashes_json=$(jq -n \
            --arg a12 "${susfs_hashes[android12-5.10]:-unknown}" \
            --arg a13 "${susfs_hashes[android13-5.15]:-unknown}" \
            --arg a14 "${susfs_hashes[android14-6.1]:-unknown}" \
            --arg a15 "${susfs_hashes[android15-6.6]:-unknown}" \
            --arg a16 "${susfs_hashes[android16-6.12]:-unknown}" \
            '{
              "android12-5.10": $a12,
              "android13-5.15": $a13,
              "android14-6.1":  $a14,
              "android15-6.6":  $a15,
              "android16-6.12": $a16
            }')
          
          echo "$susfs_hashes_json" > susfs_lookup_temp.json
          merged_matrix=$(echo "$merged_matrix" | jq \
            --slurpfile hashes_array susfs_lookup_temp.json \
            '
              ($hashes_array[0]) as $hashes |
              [.[] | . + {susfs_resolved_hash: ($hashes["\(.android_version)-\(.kernel_version)"] // "unknown")}]
            ')
          
          rm susfs_lookup_temp.json
          
          merged_matrix=$(echo "$merged_matrix" | jq '
            sort_by(
              (.os_version | gsub("A"; "") | tonumber? // 0) * -1,
              .model
            )
          ')

          echo "$merged_matrix" > final_matrix_temp.json
          
          # Recalculate wrapped with updated matrix and write output
          wrapped=$(jq --slurp '{ include: .[] }' final_matrix_temp.json)
          echo "matrix=$(echo "$wrapped" | jq -c .)" >> "$GITHUB_OUTPUT"
          rm final_matrix_temp.json
          echo "::endgroup::"

      - name: Upload build matrix
        uses: actions/upload-artifact@v7
        with:
          name: build-matrix
          path: matrix.json
          archive: false
          retention-days: 7

      - name: 📊 Build plan summary
        run: |
          ksu_type="${{ fromJSON(steps.set-matrix.outputs.ksu_options_normalized)[0].type }}"
          ksu_ref="${{ fromJSON(steps.set-matrix.outputs.ksu_options_normalized)[0].hash }}"
          
          ksu_display=""
          if [ "$ksu_type" = "KSUN" ] || [ "$ksu_type" = "KSU" ]; then
            if [[ "$ksu_ref" =~ ^[0-9a-f]{40}$ ]]; then
              ksu_display+="📌 \`$ksu_type\`, \`$ksu_ref\`"
            else
              ksu_display+="🔀 \`$ksu_type\`, \`$ksu_ref\` (\`${{ steps.set-matrix.outputs.ksu_resolved_hash }}\`)"
            fi
          fi
          
          build_ts_input="${{ inputs.build_timestamp }}"
          if [ -z "$build_ts_input" ]; then
            build_ts_display="⏱️ auto (current build time)"
          else
            build_ts_display="📌 \`$build_ts_input\`"
          fi
          
          {
            cat << 'EOF'
          ## 🎯 Build Plan
          
          **Target:** ${{ inputs.op_model }}  
          **Devices:** ${{ steps.set-matrix.outputs.count }}  
          
          **Configuration:**
          EOF
          
            echo "- KSU Config: $ksu_display"
            echo "- Build Timestamp: $build_ts_display"
          
            cat << 'EOF'
          - Optimization: ${{ inputs.optimize_level }}
          - Clean Build/No Ccache: ${{ inputs.clean_build && '✅ Yes' || '❌ No' }}
          - Create Release: ${{ inputs.make_release && '✅ Yes' || '❌ No' }}
          - Create Debug Artifacts: ${{ inputs.debug && '✅ Yes' || '❌ No' }}
          - Sync toolchains: ${{ inputs.mirror_toolchains && '✅ Yes' || '❌ No' }}
          
          **SUSFS Configuration:**
          EOF
          } >> "$GITHUB_STEP_SUMMARY"
          
          # Display SUSFS config for each kernel version
          declare -A susfs_inputs=(
            ["android12-5.10"]="${{ inputs.android12-5_10_susfs_branch_or_commit }}"
            ["android13-5.15"]="${{ inputs.android13-5_15_susfs_branch_or_commit }}"
            ["android14-6.1"]="${{ inputs.android14-6_1_susfs_branch_or_commit }}"
            ["android15-6.6"]="${{ inputs.android15-6_6_susfs_branch_or_commit }}"
            ["android16-6.12"]="${{ inputs.android16-6_12_susfs_branch_or_commit }}"
          )
          
          declare -A step_hashes=(
            ["android12-5.10"]="${{ steps.set-matrix.outputs.susfs_hash_android12_5_10 }}"
            ["android13-5.15"]="${{ steps.set-matrix.outputs.susfs_hash_android13_5_15 }}"
            ["android14-6.1"]="${{ steps.set-matrix.outputs.susfs_hash_android14_6_1 }}"
            ["android15-6.6"]="${{ steps.set-matrix.outputs.susfs_hash_android15_6_6 }}"
            ["android16-6.12"]="${{ steps.set-matrix.outputs.susfs_hash_android16_6_12 }}"
          )
          
          # Iterate only on the GKI versions present in this run
          IFS=',' read -ra active_keys_display \
            <<< "${{ steps.set-matrix.outputs.active_gki_keys }}"
          
          for key in "${active_keys_display[@]}"; do
            value="${susfs_inputs[$key]:-}"
            fetched_hash="${step_hashes[$key]:-unknown}"
            
            if [ -z "$value" ]; then
              # Auto: no input > hash resolved by ls-remote
              echo "- $key: 🔄 auto (\`$fetched_hash\`)" >> $GITHUB_STEP_SUMMARY
            elif [[ "$value" =~ ^[0-9a-f]{40}$ ]]; then
              # Manual 40-char hash > direct passthrough
              echo "- $key: 📌 \`$value\`" >> $GITHUB_STEP_SUMMARY
            else
              # Branch name > show branch + resolved hash
              echo "- $key: 🔀 \`$value\` (\`$fetched_hash\`)" >> $GITHUB_STEP_SUMMARY
            fi
          done
          
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "> **💡 Note:** Hashes are resolved at run time via API calls before builds start." >> $GITHUB_STEP_SUMMARY
          
          # Add A restriction note for android-kernel filters
          if [[ "${{ inputs.op_model }}" == android*-*.* ]]; then
            echo "" >> $GITHUB_STEP_SUMMARY
            echo "> **⚠️ Android-Kernel Filter:** Only A15 and A16 devices will be built for \`${{ inputs.op_model }}\`" >> $GITHUB_STEP_SUMMARY
          fi

  mirror_toolchain:
    needs: set-op-model
    if: ${{ inputs.mirror_toolchains }}
    uses: ./.github/workflows/mirror-toolchains.yml
    secrets: inherit

  prepare_ccache:
    name: Prepare ccache binary (download once)
    runs-on: ubuntu-latest
    steps:
      # Download the custom ccache binary ONCE for the whole matrix and share it as
      # an artifact. Previously every parallel matrix job curl'd the same GitHub raw
      # URL simultaneously, which made GitHub's edge rate-limit / 504 the CI IPs and
      # fail the whole build (the URL is fine in a browser -- it's the ~30x parallel
      # hammering that triggers the throttle).
      - name: Download custom ccache once
        run: |
          set -uo pipefail
          echo "::group::Download ccache"
          url="https://raw.githubusercontent.com/WildKernels/kernel_patches/refs/heads/main/ccache/ccache-x86-64"
          ok=0
          for attempt in 1 2 3 4 5 6; do
            if curl -LfsS --connect-timeout 30 --max-time 120 -H "User-Agent: Mozilla/5.0" "$url" -o ccache && [ -s ccache ]; then
              ok=1; break
            fi
            echo "attempt $attempt failed (GitHub raw 504/throttle); backing off..."
            sleep $(( attempt * 5 + RANDOM % 6 ))
          done
          if [ "$ok" = 1 ]; then
            echo "✅ downloaded ccache once for all matrix jobs"
          else
            echo "::warning::custom ccache download failed; matrix jobs will fall back to the apt ccache"
            rm -f ccache
          fi
          echo "::endgroup::"
      - name: Upload ccache artifact
        uses: actions/upload-artifact@v7
        with:
          name: ccache-binary
          path: ccache
          retention-days: 1
          if-no-files-found: warn

  build:
    name: build (${{ matrix.model }}, ${{ matrix.soc }}, ${{ matrix.branch }}, ${{ matrix.manifest }}, ${{ matrix.android_version }}, ${{ matrix.kernel_version }}, ${{ matrix.os_version }}, ${{ matrix.ksu_type }})
    needs: [set-op-model, mirror_toolchain, prepare_ccache]
    if: |
      !cancelled() &&
      needs.set-op-model.result == 'success' &&
      (needs.mirror_toolchain.result == 'success' || needs.mirror_toolchain.result == 'skipped')
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix: ${{ fromJSON(needs.set-op-model.outputs.matrix) }}
    outputs:
      ksun_ver: ${{ steps.build-stat.outputs.ksu_version }}
      ksu_ver: ${{ steps.build-stat.outputs.ksu_version }}
    steps:
      - name: 📥 Checkout Code
        uses: actions/checkout@v6
        with:
          fetch-depth: 1

      - name: 🧹 Emergency Disk Cleanup
        if: ${{ matrix.disk_cleanup }}
        uses: ./.github/actions/disk-cleanup

      - name: Install Minimal Dependencies
        run: |
          set -euo pipefail
          echo "::group::Install dependencies"
          sudo apt-get -o Acquire::Retries=3 update -qq
          sudo DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
            git curl ca-certificates build-essential clang lld flex bison \
            libelf-dev libssl-dev libncurses-dev zlib1g-dev liblz4-tool \
            libxml2-utils rsync unzip dwarves file python3 ccache jq bc dos2unix kmod libdw-dev elfutils pigz
          sudo apt-get clean
          echo "✅ Dependencies installed"
          echo "::endgroup::"

      - name: Get prebuilt ccache (downloaded once by prepare_ccache)
        uses: actions/download-artifact@v8
        with:
          name: ccache-binary
          path: ccache-dl
        continue-on-error: true

      - name: Install ccache (ECS by cctv18, shared via artifact)
        run: |
          set -uo pipefail
          echo "::group::Install ccache"
          if [ -s ccache-dl/ccache ]; then
            sudo cp -f ccache-dl/ccache /usr/bin/ccache
            sudo chmod +x /usr/bin/ccache
            echo "✅ installed custom ccache from shared artifact"
          else
            # prepare_ccache could not fetch it (504/throttle); keep the apt ccache
            # already installed in 'Install Minimal Dependencies'.
            echo "::warning::shared ccache artifact unavailable; using apt ccache"
          fi
          rm -rf ccache-dl
          echo "[DEBUG] Ccache version : $(ccache --version | head -1)"
          echo "::endgroup::"

      - name: ♻️ Configure ccache (bounded)
        run: |
          echo "::group::Configure ccache environment"
          set -euo pipefail
          if command -v ccache >/dev/null 2>&1; then
            CACHE_DIR="${{ github.workspace }}/.ccache"
            CCACHE_LOG="${{ github.workspace }}/ccache.log"
            mkdir -p "$CACHE_DIR"
            
            SETTINGS=(
              "CCACHE_DIR=$CACHE_DIR"
              "CCACHE_MAXSIZE=12G"
              "CCACHE_COMPILERCHECK=content"
              "CCACHE_BASEDIR=${GITHUB_WORKSPACE}"
              "CCACHE_NOHASHDIR=true"
              "CCACHE_IGNOREOPTIONS=--sysroot*"
              "CCACHE_COMPRESSION=true"
              "CCACHE_COMPRESSION_LEVEL=3"
              "CCACHE_DIRECT=true"
              "CCACHE_FILE_CLONE=true"
              "CCACHE_INODE_CACHE=true"
              "CCACHE_IS_KERNEL_COMPILING=true"
              "CCACHE_UMASK=002"
              "CCACHE_LOGFILE=${CCACHE_LOG}"
              "CCACHE_SLOPPINESS=file_macro,time_macros,include_file_mtime,include_file_ctime,pch_defines,system_headers,locale"
            )
            
            for setting in "${SETTINGS[@]}"; do
              export "$setting"
              echo "$setting" >> "$GITHUB_ENV"
            done
            
            if ccache --help 2>&1 | grep -q 'depend_mode'; then
              export CCACHE_DEPEND=true
              echo "CCACHE_DEPEND=true" >> "$GITHUB_ENV"
            fi
            
            echo "✅ ccache configured successfully"
            echo "Current ccache configuration:"
            ccache -p
          else
            echo "ccache not found, skipping configuration."
          fi
          echo "::endgroup::"

      - name: 🧹 Prepare op_config_json (without KSU fields)
        id: prepare_config
        shell: bash
        run: |
          echo "config_json=$(jq -nc --argjson m '${{ toJSON(matrix) }}' '$m | del(.ksu_type, .ksu_hash, .ksu_resolved_hash)')" >> "$GITHUB_OUTPUT"

      - name: 🔨 Build Kernel
        id: build
        uses: ./.github/actions/build-kernel
        with:
          op_config_json: ${{ steps.prepare_config.outputs.config_json }}
          ksu_type: ${{ matrix.ksu_type }}
          ksu_branch_or_hash: ${{ matrix.ksu_resolved_hash }}
          susfs_commit_hash_or_branch: ${{ matrix.susfs_resolved_hash }}
          optimize_level: ${{ inputs.optimize_level }}
          build_timestamp: ${{ inputs.build_timestamp }}
          clean: ${{ inputs.clean_build }}
          debug: ${{ inputs.debug }}
          github_token: ${{ secrets.GITHUB_TOKEN }}

      - name: 📊 Build statistics
        id: build-stat
        if: always()
        run: |
          echo "::group::Build Statistics"
          
          echo "Device: ${{ matrix.model }}"
          echo "OS Version: ${{ matrix.os_version }}"
          echo "Kernel: ${{ matrix.android_version }}-${{ matrix.kernel_version }}"
          if [ "${{ matrix.susfs }}" = true ]; then
            echo "SUSFS Hash: ${{ matrix.susfs_resolved_hash }}"
          fi
          echo "Status: ${{ job.status }}"
          
          if [ "${{ steps.build.outcome }}" = "success" ]; then
            echo ""
            echo "✅ Build completed successfully"
            echo ""
            echo "Outputs:"
            echo "  - Kernel: ${{ steps.build.outputs.kernel_version }}"
            if [ "${{ matrix.ksu_type }}" = "KSUN" ]; then
              echo "  - KSU Next: v${{ steps.build.outputs.ksu_version }}"
              echo "ksun_ver=${{ steps.build.outputs.ksu_version }}" >> "$GITHUB_OUTPUT"
              echo "ksu_ver=" >> "$GITHUB_OUTPUT"
            else
              echo "  - KSU: v${{ steps.build.outputs.ksu_version }}"
              echo "ksun_ver=" >> "$GITHUB_OUTPUT"
              echo "ksu_ver=${{ steps.build.outputs.ksu_version }}" >> "$GITHUB_OUTPUT"
            fi
            if [ "${{ matrix.susfs }}" = true ]; then
              echo "  - SUSFS: ${{ steps.build.outputs.susfs_version }}"
            fi
            echo "  - Build time: ${{ steps.build.outputs.build_time }}s"
            
            if [ "${{ inputs.clean_build }}" != "true" ]; then
              echo "  - ccache hit rate: ${{ steps.build.outputs.ccache_hit_rate }}"
              echo "  - ccache direct rate: ${{ steps.build.outputs.ccache_direct_rate }}"
            else
              echo "  - ccache: disabled (clean build)"
            fi
            
            if [ -n "${{ steps.build.outputs.warnings }}" ]; then
              echo "  - Warnings: ${{ steps.build.outputs.warnings }}"
            fi
          else
            echo "❌ Build failed"
          fi
          
          echo "::endgroup::"

      - name: 📝 Job summary
        if: always()
        run: |
          cat >> $GITHUB_STEP_SUMMARY << EOF
          
          ### ${{ matrix.model }} (${{ matrix.os_version }}) - ${{ job.status == 'success' && '✅ Success' || '❌ Failed' }}
          
          **Kernel:** ${{ matrix.android_version }}-${{ matrix.kernel_version }}
          EOF
          
          if [ "${{ matrix.susfs }}" = true ]; then
            cat >> $GITHUB_STEP_SUMMARY << EOF
          **SUSFS Hash:** \`${{ matrix.susfs_resolved_hash }}\`
          EOF
          fi
          
          if [ "${{ steps.build.outcome }}" = "success" ]; then
            cat >> $GITHUB_STEP_SUMMARY << EOF
          | Metric | Value |
          |--------|-------|
          | **Kernel** | ${{ steps.build.outputs.kernel_version }} |
          EOF
            if [ "${{ matrix.ksu_type }}" = "KSUN" ]; then
              cat >> $GITHUB_STEP_SUMMARY << EOF
          | **KSU Next** | v${{ steps.build.outputs.ksu_version }} |
          EOF
            else
              cat >> $GITHUB_STEP_SUMMARY << EOF
          | **KSU** | v${{ steps.build.outputs.ksu_version }} |
          EOF
            fi
            
            if [ "${{ matrix.susfs }}" = true ]; then
              cat >> $GITHUB_STEP_SUMMARY << EOF
          | **SUSFS** | ${{ steps.build.outputs.susfs_version }} |
          EOF
            fi
          cat >> $GITHUB_STEP_SUMMARY << EOF
          | **Build Time** | ${{ steps.build.outputs.build_time }}s |
          EOF
            
            if [ "${{ inputs.clean_build }}" != "true" ]; then
              cat >> $GITHUB_STEP_SUMMARY << EOF
          | **ccache Hit Rate** | ${{ steps.build.outputs.ccache_hit_rate }} |
          | **ccache Direct Rate** | ${{ steps.build.outputs.ccache_direct_rate }} |
          EOF
            fi
            
            if [ -n "${{ steps.build.outputs.warnings }}" ]; then
              echo "| **Warnings** | ${{ steps.build.outputs.warnings }} |" >> $GITHUB_STEP_SUMMARY
            fi
            
            cat >> $GITHUB_STEP_SUMMARY << EOF
          
          **Image SHA256:** \`${{ steps.build.outputs.image_sha256 }}\`
          **AnyKernel3 Zip SHA256:** \`${{ steps.build.outputs.zip_sha256 }}\`
          EOF
          fi

      - name: 🧹 Final cleanup and space report
        if: always()
        run: |
          echo "::group::Cleanup"
          
          # Remove build artifacts but PRESERVE ccache
          sudo rm -rf "$GITHUB_WORKSPACE/out" || true
          sudo rm -rf "$GITHUB_WORKSPACE/build" || true
          sudo rm -rf "$GITHUB_WORKSPACE/kernel/out" || true
          sudo rm -rf "$GITHUB_WORKSPACE/.repo" || true
          sudo rm -rf /tmp/* || true
          
          # Show ccache stats (don't clear it!)
          if command -v ccache >/dev/null 2>&1; then
            echo ""
            echo "📊 ccache statistics after build:"
            ccache -s
            echo ""
            echo "💾 ccache preserved for next build"
          fi
          
          echo ""
          echo "💽 Final disk usage:"
          df -h /
          
          echo "::endgroup::"

  trigger-release:
    needs: [set-op-model, build]
    runs-on: ubuntu-latest
    if: |
      !cancelled() &&
      inputs.make_release == true &&
      needs.build.result == 'success' &&
      needs.set-op-model.result == 'success'
    env:
      REPO_OWNER: ${{ github.repository_owner }}
      REPO_NAME: ${{ github.event.repository.name }}
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      SUSFS_BASE_VERSION: ${{ needs.set-op-model.outputs.susfs_base_version }}
      RELEASE_NAME: '*TEST BUILD* OnePlus Kernels With KernelSU Next & SUSFS ${{ needs.set-op-model.outputs.susfs_base_version }} *TEST BUILD*'
    steps:
      - name: 📥 Checkout code
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: 🏷️ Generate and Create New Tag
        run: |
          # Only search for tags starting with this SUSFS version
          LATEST_MATCHING_TAG=$(gh api repos/$REPO_OWNER/$REPO_NAME/tags \
            --jq "[.[] | select(.name | startswith(\"${SUSFS_BASE_VERSION}-r\"))] \
                  | sort_by(.name | split(\"-r\")[1] | tonumber) \
                  | last | .name // empty")
          
          if [ -z "$LATEST_MATCHING_TAG" ]; then
            # No existing release for this version SUSFS → first release
            NEW_TAG="${SUSFS_BASE_VERSION}-r1"
          else
            # Only increment the -r* suffix of the latest release for this version
            NEW_TAG=$(echo "$LATEST_MATCHING_TAG" | awk -F'-r' '{printf "%s-r%d", $1, $2+1}')
          fi
          
          echo "New tag: $NEW_TAG"
          echo "NEW_TAG=${NEW_TAG}" >> $GITHUB_ENV
          git tag $NEW_TAG
          git push origin $NEW_TAG

      - name: 📥 Download Artifacts
        uses: actions/download-artifact@v8
        with:
          path: ./downloaded-artifacts
          merge-multiple: true
          skip-decompress: true

      - name: 📝 Generate Device List and Final Release Notes
        id: generate-notes
        run: |
          echo "=== Start building the release notes ==="
          
          # Remove ccache-binary artifacts
          rm -f ./downloaded-artifacts/ccache-binary.zip
          
          # Collect build metadata
          declare -A device_info
          
          JSON_BUILD_DATA=$(jq -c '.' ./downloaded-artifacts/matrix.json)
          
          for file in $(find downloaded-artifacts -maxdepth 1 -name "*.zip" -type f | sort); do
            if [ -f "$file" ]; then
              zipname=$(basename "$file" .zip)
              rest="${zipname#AK3_}"
              IFS='_' read -ra parts <<< "$rest"
              model="${parts[0]}"
              os_version="${parts[1]}"
              kernel_version="${parts[2]}"
              ksu_type="${parts[3]}"
              ksu_ver="${parts[4]}"
              if [ "${parts[5]:-}" = "SuSFS" ]; then
                susfs_ver="${parts[6]:-unknown}"
              else
                susfs_ver="none"
              fi
              full_model="${model}_${os_version}_${kernel_version}"
              device_info["$full_model"]="$model|$os_version|$kernel_version|$ksu_type|$ksu_ver|$susfs_ver|$zipname"
            fi
          done
          
          ksu_type="${{ fromJSON(needs.set-op-model.outputs.ksu_options_normalized)[0].type }}"
          ksu_ref="${{ fromJSON(needs.set-op-model.outputs.ksu_options_normalized)[0].hash }}"
          ksu_resolved_hash="${{ needs.set-op-model.outputs.ksu_resolved_hash }}"
          
          OPTIMIZE_LEVEL="${{ inputs.optimize_level }}"
          CLEAN_BUILD="${{ inputs.clean_build }}"
          
          # Hash map for GKI version
          declare -A susfs_map=(
            ["android12-5.10"]="${{ needs.set-op-model.outputs.susfs_hash_android12_5_10 }}"
            ["android13-5.15"]="${{ needs.set-op-model.outputs.susfs_hash_android13_5_15 }}"
            ["android14-6.1"]="${{ needs.set-op-model.outputs.susfs_hash_android14_6_1 }}"
            ["android15-6.6"]="${{ needs.set-op-model.outputs.susfs_hash_android15_6_6 }}"
            ["android16-6.12"]="${{ needs.set-op-model.outputs.susfs_hash_android16_6_12 }}"
          )
          
          # List of GKI versions present in this run
          IFS=',' read -ra active_gki_keys \
            <<< "${{ needs.set-op-model.outputs.active_gki_keys }}"
          
          cat << EOF > release_notes.md
          # 🎯 OnePlus Kernels with KernelSU Next & SUSFS $SUSFS_BASE_VERSION
          
          > **Build Date:** $(date -u '+%Y-%m-%d %H:%M:%S UTC')  
          > **Build ID:** \`${{ github.run_id }}\`  
          > **Workflow:** [\`${{ github.workflow }}\`](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }})
          
          ---
          
          ## 📦 Built Devices (${#device_info[@]} total)
          
          | Model | OS Version | Kernel Version | Features |
          |-------|------------|----------------|----------|
          EOF
          
          while IFS= read -r full_key; do
            [ -z "$full_key" ] && continue
            
            IFS='|' read -r model os_ver kernel_ver _ _ _ zipfile <<< "${device_info["$full_key"]}"
            
            # Use jq to extract feature flags for this model from the JSON matrix.
            # Reconstruct the original model name (e.g. OP13r-6.1.118) in case the ZIP
            # had the kernel version suffix stripped for display. Try exact ORIG_MODEL
            # first, fall back to base MODEL, both filtered by os_version.
            full_kv=$(echo "$kernel_ver" | sed 's/^[^-]*-//')
            possible_orig_model="${model}-${full_kv}"
            feature_flags=$(jq -r --arg MODEL "$model" --arg ORIG_MODEL "$possible_orig_model" --arg OS "$os_ver" '
              ([ .[] | select(.model == $ORIG_MODEL and .os_version == $OS) ][0]) //
              ([ .[] | select(.model == $MODEL      and .os_version == $OS) ][0]) |
              "\(.hmbird // false)\t\(.susfs // false)\t\(.bbr // false)\t\(.bbr3 // false)\t\(.bbg // false)\t\(.ttl // false)\t\(.ip_set // false)\t\(.unicode // false)\t\(.ds // false)\t\(.ntsync // false)"
            ' <<< "$JSON_BUILD_DATA")
            
            features=()
             # If no match found, skip or handle error
            if [[ -z "$feature_flags" ]]; then
              echo "Warning: No JSON entry found for model: $model" >&2
              features_str="N/A"
            else
              IFS=$'\t' read -r hmbird susfs bbr bbr3 bbg ttl ip_set unicode ds ntsync <<< "$feature_flags"
              
              # Build features string based on boolean values
              [[ "$hmbird" == "true" ]] && features+=("🐦 HMBIRD")
              [[ "$susfs" == "true" ]] && features+=("ඞ SusFS")
              [[ "$bbr" == "true" ]] && features+=("🚀 BBR")
              [[ "$bbr3" == "true" ]] && features+=("🚀 BBRv3")
              [[ "$bbg" == "true" ]] && features+=("🛡️ BBG")
              [[ "$ttl" == "true" ]] && features+=("🌐 TTL")
              [[ "$ip_set" == "true" ]] && features+=("🧱 IP_SET & IPv6 NAT")
              [[ "$unicode" == "true" ]] && features+=("🔧 Unicode Fix")
              [[ "$ds" == "true" ]] && features+=("💻 Droidspaces")
              [[ "$ntsync" == "true" ]] && features+=("🔃 NTSync")
              
              total=${#features[@]}
              if [ $total -eq 0 ]; then
                features_str="N/A"
              else
                features_str=""
                count=0
                
                for item in "${features[@]}"; do
                  count=$((count + 1))
                  
                  features_str+="$item"
                  
                  if [ $count -lt $total ]; then
                    if [ $((count % 3)) -eq 0 ]; then
                      features_str+="<br>"
                    else
                      features_str+="   "
                    fi
                  fi
                done
              fi
            fi
            
            if [[ "$os_ver" =~ ^A[0-9]+$ ]]; then
              os_display_version="Android ${os_ver#A}"
            else
              os_display_version=$os_ver
            fi
            
            download_url="https://github.com/${REPO_OWNER}/${REPO_NAME}/releases/download/${NEW_TAG}/${zipfile}.zip"
            model_link="[$model]($download_url)"
            printf "| %s | %-10s | %-16s | %-48s |\n" \
              "$model_link" "$os_display_version" "$kernel_ver" "$features_str" >> release_notes.md
          done < <(printf '%s\n' "${!device_info[@]}" | sort)
          
          if [ ${#device_info[@]} -gt 0 ]; then
            first_entry=$(printf '%s\n' "${!device_info[@]}" | sort | head -n1)
            IFS='|' read -r _ _ _ _ ksu_ver_global _ _ <<< "${device_info["$first_entry"]}"
          else
            echo "::error::No device info found!" >&2
            exit 1
          fi
          
          cat << EOF >> release_notes.md
          
          ---
          
          ## 🔧 Build Configuration
          
          | Component | Version/Setting |
          |-----------|----------------|
          EOF
          # Display function: hash → direct hash, branch → branch (hash)
          ksu_display_value() {
            local input="$1"
            local resolved="$2"
            if [[ "$input" =~ ^[0-9a-f]{40}$ ]]; then
              echo "$input"
            else
              echo "$input ($resolved)"
            fi
          }
          
          ksu_display=$(ksu_display_value "$ksu_ref" "$ksu_resolved_hash")
          if [ "$ksu_type" == "KSUN" ]; then
            cat << EOF >> release_notes.md
          | **KernelSU Next Branch** | \`$ksu_display\` |
          | **KernelSU Next Version** | \`$ksu_ver_global\` |
          EOF
          elif [ "$ksu_type" == "KSU" ]; then
            cat << EOF >> release_notes.md
          | **KernelSU Branch** | \`$ksu_display\` |
          | **KernelSU Version** | \`$ksu_ver_global\` |
          EOF
          else
            cat << EOF >> release_notes.md
          | **Unknown KernelSU Fork Branch** | \`\` |
          | **Unknown KernelSU Fork Version** | \`\` |
          EOF
          fi
          cat << EOF >> release_notes.md
          | **SUSFS Version** | \`$SUSFS_BASE_VERSION\` |
          | **Optimization Level** | \`$OPTIMIZE_LEVEL\` |
          | **Clean Build** | $( [ "$CLEAN_BUILD" = "true" ] && echo "✅ Yes (no ccache)" || echo "❌ No (ccache enabled)" ) |
          | **Compiler** | Clang (version varies by device) |
          
          ### 📌 SUSFS Branch Mapping
          
          | Kernel Version | SUSFS Commit |
          |----------------|--------------|
          $(for key in "${active_gki_keys[@]}"; do
            echo "| $key | \`${susfs_map[$key]:-unknown}\` |"
          done)
          
          ---
          
          ## ✨ Features & Capabilities
          
          ### 🔐 Root Management
          EOF
          if [ "$ksu_type" == "KSUN" ]; then
            cat << EOF >> release_notes.md
          - **KernelSU Next** - Next-generation kernel-level root solution
          EOF
          elif [ "$ksu_type" == "KSU" ]; then
            cat << EOF >> release_notes.md
          - **KernelSU** - Kernel-level root solution
          EOF
          fi
          cat << EOF >> release_notes.md
          - **SUSFS $SUSFS_BASE_VERSION** - Advanced hiding and security features
          EOF
          if [ "$ksu_type" == "KSUN" ] && [ "${ksu_ver_global:-0}" -lt 12884 ]; then
            cat << EOF >> release_notes.md
          - **Magic Mount Support** - Seamless file system modifications
          EOF
          fi
          if [ "${ksu_ver_global:-0}" -lt 12884 ]; then
            cat << EOF >> release_notes.md
          - **Manual Hooks** - scope_min_manual_hooks_v1.4 for better compatibility
          EOF
          fi
          cat << EOF >> release_notes.md
          ### 🛡️ Security & Privacy
          - **Baseband Guard (BBG)** - LSM-based baseband security
          - **SUSFS Hide Features**:
            - ✅ SUS_PATH - Hide suspicious paths
            - ✅ SUS_MOUNT - Hide mount points (No Cli Support)
            - ✅ SUS_KSTAT - Spoof kernel statistics
            - ✅ SPOOF_UNAME - Kernel version spoofing
            - ✅ SPOOF_CMDLINE - Boot parameters spoofing
            - ✅ OPEN_REDIRECT - File access redirection
            - ✅ SUS_MAP - Memory mapping protection
            - ✅ AVC_SPOOF - Spoof Procfs avc denial logs
          - **Ptrace Leak Fix** - For kernels < 5.16
          - **Unicode Fix** - Prevent path traversal and other detections using non-printable Unicode codepoints [Experimental]
          
          ### 🚀 Performance & Networking
          - **BBRv1** - Improved TCP congestion control
          - **BBRv3** - Improved TCP congestion control
          - **CAKE and PIE qdisc Support** - Better Net Schedulers
          - **Wireguard** - Built-in VPN support
          - **IP Set & IPv6 NAT Support** - Advanced firewall capabilities and IPv6 NAT Support
          - **TTL Target Support** - Network packet manipulation
          - **LTO (Link Time Optimization)** - Optimized binary size and performance
          - **ccache-accelerated builds** - Faster compilation times
          - **Optimisation Patches** - Memory, I/O, CPU scheduler, network and other general tunings
          
          ### 🔧 System Features
          - **TMPFS_XATTR** - Extended attributes for tmpfs (Mountify support)
          - **TMPFS_POSIX_ACL** - POSIX ACLs for tmpfs
          - **HMBIRD SCX** - Scheduler extensions for all SM8750/MT6991 devices
          - **Droidspaces** - Support Portable Linux containers to run full Linux environments.
          - **NTSync** - Provide high-performance, low-latency synchronization primitives compatible with the Windows NT kernel API
          
          ---
          
          ## 📱 Manager Applications
          
          ### Official Manager
          EOF
          if [ "$ksu_type" == "KSUN" ]; then
            cat << EOF >> release_notes.md
          - **KernelSU Next Manager**  
            → [GitHub Release](https://github.com/KernelSU-Next/KernelSU-Next/releases)
          EOF
          elif [ "$ksu_type" == "KSU" ]; then
            cat << EOF >> release_notes.md
          - **KernelSU Manager**  
            → [GitHub Release](https://github.com/tiann/KernelSU/releases)
          EOF
          fi
          cat << EOF >> release_notes.md
          ### Community Managers
          - **WildKSU Manager** (Recommended for additional features)  
            → [GitHub Release](https://github.com/WildKernels/Wild_KSU/releases)
          
          ### Required Module
          - **KSU SUSFS Module** (Required for SUSFS features)  
            → [GitHub Release](https://github.com/sidex15/ksu_module_susfs/releases)
          
          ### Recomended Flasher
          - **Kernel Flasher** (Required for flashing AnyKernel3 zips and backups and OTA)  
            → [GitHub Release](https://github.com/fatalcoder524/KernelFlasher/releases)
          
          ---
          
          ## 📥 Installation Instructions
          
          ### Prerequisites
          - Unlocked bootloader.
          - Backup your current boot image.
          - Have root access using Magisk / KernelSU / Apatch (Any forks).
          
          ### Via Kernel Flasher
          1. Download the correct AnyKernel3 ZIP for your device.
          2. If you previously used another root method, clean it up first:
              a. **Magisk**: perform a complete uninstall **after flashing the AnyKernel3 ZIP**.
              b. **KSU LKM (boot/init_boot/vendor_boot patched)**: Flash back the stock boot/init_boot/vendor_boot depending on what you patched.
              c. **KSU GKI**: if you are 100% sure you already flashed stock init_boot/boot/vendor_boot, no action is needed; otherwise, follow the same steps as KSU LKM.
              d. **APatch**: remove /data/adb contents to avoid leftover root conflicts **after flashing the AnyKernel3 ZIP**.
          3. Flash the ZIP to the active slot using Kernel Flasher.
          4. Install the KernelSU-Next Manager APK, same version as mentioned in the AnyKernel3 ZIP name.
          5. Open the KernelSU-Next app.
          6. Reboot the device if you performed any cleanup in step 2.
          
          ---
          
          ## 📜 Changelog
          
          ### This Release
          - Updated SUSFS to $SUSFS_BASE_VERSION.
          - Added HMBIRD support for all SM8750/MT6991 devices.
          - Improved ccache build system.
          - Enhanced SUSFS hiding capabilities.
          - Added IP_SET, IPv6 NAT and TTL support.
          - Added TMPFS_XATTR and TMPFS_POSIX_ACL support for Mountify.
          - Added Ptrace leak fix for kernels < 5.16.
          - Compiler optimizations (${{ inputs.optimize_level }}).
          - Additional General Optimisations.
          - Wild_KSU Manager Support.
          - Unicode Bypass Fix
          - Droidspaces Support
          - NTSync Support
          
          ### Previous Releases
          See [Releases Page](${{ github.server_url }}/${{ github.repository }}/releases)
          
          ---
          
          ## 🙏 Credits
          
          - **KernelSU Next Team** - Root solution
          - **KernelSU Team** - Root solution
          - **simonpunk** - SUSFS development
          - **OnePlus** - Kernel source code
          - **Community Contributors** - Testing and feedback
          
          ---
          
          **⚡ Built with ❤️ by the community**
          
          EOF
          
          echo "--- Final Release Notes ---"
          cat release_notes.md

      - name: 🚀 Create GitHub Release
        run: |
          gh release create "${{ env.NEW_TAG }}" \
            --repo "${{ env.REPO_OWNER }}/${{ env.REPO_NAME }}" \
            --title "${{ env.RELEASE_NAME }}" \
            --notes-file release_notes.md \
            --draft

      - name: 📤 Upload Release Assets Dynamically
        run: |
          for file in ./downloaded-artifacts/*.zip; do
            if [ -f "$file" ]; then
              echo "Uploading $file..."
              gh release upload "${{ env.NEW_TAG }}" "$file" --clobber
            fi
          done

      - name: 📊 Release summary
        if: success()
        run: |
          cat >> $GITHUB_STEP_SUMMARY << EOF
          
          ---
          
          ## 🎉 Release Created Successfully
          
          **Tag:** [\`${{ env.NEW_TAG }}\`](${{ github.server_url }}/${{ github.repository }}/releases/tag/${{ env.NEW_TAG }})  
          **Kernels:** $(find ./downloaded-artifacts -maxdepth 1 -name "*.zip" -type f | wc -l)
          
          ### 📦 Assets
          EOF
          
          for zip in ./downloaded-artifacts/*.zip; do
            if [ -f "$zip" ]; then
              name=$(basename "$zip")
              size=$(stat -c%s "$zip")
              size_mb=$(echo "scale=2; $size / 1024 / 1024" | bc)
              echo "- \`$name\` (${size_mb} MB)" >> $GITHUB_STEP_SUMMARY
            fi
          done