linux.yml

name: Linux

on:
  workflow_dispatch:
  push:
    branches: [ main ]

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

jobs:
  linux:
    runs-on: ubuntu-22.04
    container:
      image: ubuntu:20.04
    env:
      DEBIAN_FRONTEND: noninteractive
    steps:
      - name: Bootstrap container tools
        run: |
          apt-get update
          apt-get install -y git ca-certificates

      - uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Checkout HISE
        uses: actions/checkout@v4
        with:
          repository: RickTaylor79/HISE
          ref: de5a95e910db9b60753ad61701a3119ba107f0ce
          path: HISE
          submodules: recursive

      - name: Resolve export root
        shell: bash
        run: |
          set -euo pipefail
          vst3_root="$GITHUB_WORKSPACE/Smut/CIExports/vst3"
          fallback_root="$GITHUB_WORKSPACE/Smut/Binaries"

          is_complete_export_root() {
            local root="$1"
            [[ -d "$root/Builds" && -d "$root/Source" && -d "$root/JuceLibraryCode" ]]
          }

          if is_complete_export_root "$vst3_root"; then
            echo "VST3_ROOT=$vst3_root" >> "$GITHUB_ENV"
          else
            echo "VST3_ROOT=$fallback_root" >> "$GITHUB_ENV"
          fi

      - name: Source fingerprint (Linux)
        shell: bash
        run: |
          set -euo pipefail
          echo "Commit: $GITHUB_SHA"
          files=(
            "Smut/Binaries/Source/Plugin.cpp"
            "Smut/Binaries/Source/PresetData.cpp"
            "Smut/Binaries/Source/CopyProtection.cpp"
            "Smut/AdditionalSourceCode/nodes/factory.cpp"
            "Smut/AdditionalSourceCode/nodes/RNBO.cpp"
            "Smut/Binaries/JuceLibraryCode/include_juce_audio_plugin_client_VST3.cpp"
            "Smut/Binaries/JuceLibraryCode/include_juce_audio_plugin_client_utils.cpp"
          )
          for f in "${files[@]}"; do
            if [[ -f "$f" ]]; then
              sha256sum "$f"
            else
              echo "MISSING  $f"
            fi
          done

      - name: Install dependencies (Linux)
        run: |
          apt-get update
          apt-get install -y \
            build-essential \
            pkg-config \
            zip \
            libasound2-dev \
            libfreetype6-dev \
            libcurl4-openssl-dev \
            libx11-dev \
            libxext-dev \
            libxinerama-dev \
            libxrandr-dev \
            libxcursor-dev \
            libxcomposite-dev \
            libxrender-dev \
            libgl1-mesa-dev

      - name: Normalize project paths for CI (Linux)
        shell: bash
        run: |
          set -euo pipefail
          ws="$GITHUB_WORKSPACE"
          hise="$ws/HISE"
          plugin_makefile="$VST3_ROOT/Builds/LinuxMakefile/Makefile"
          sdk_dir=""
          for candidate in \
            "$VST3_ROOT/JUCE/modules/juce_audio_processors_headless/format_types/VST3_SDK" \
            "$ws/HISE/JUCE/modules/juce_audio_processors_headless/format_types/VST3_SDK" \
            "$ws/HISE/JUCE/modules/juce_audio_processors/format_types/VST3_SDK" \
            "$VST3_ROOT/JUCE/modules/juce_audio_processors/format_types/VST3_SDK"; do
            if [[ -f "$candidate/pluginterfaces/vst/vsttypes.h" ]]; then
              sdk_dir="$candidate"
              break
            fi
          done
          if [[ -z "$sdk_dir" ]]; then
            echo "ERROR: Could not locate VST3 SDK in expected paths."
            exit 1
          fi
          sdk_dir_escaped="${sdk_dir// /\\ }"
          headless_hise_sdk_dir="$hise/JUCE/modules/juce_audio_processors_headless/format_types/VST3_SDK"

          test -f "$sdk_dir/pluginterfaces/vst/vsttypes.h"

          if [[ -f "$plugin_makefile" ]]; then
            HISE_ROOT="$hise" SDK_ROOT_ESC="$sdk_dir_escaped" perl -0pi -e '
              s#/Users/rick/Documents/GitHub/HISE#$ENV{HISE_ROOT}#g;
              s#/JUCE/modules/juce_audio_processors/format_types/VST3_SDK#$ENV{SDK_ROOT_ESC}#g;
              s#/Users/rick/Documents/GitHub/HISE/tools/SDK/VST3\\ SDK#$ENV{SDK_ROOT_ESC}#g;
              s#%FFT_HEADER_PATH%;##g;
              s#%FFT_LINKER_FLAGS%##g;
            ' "$plugin_makefile"

            if ! grep -Fq -- "-I$sdk_dir_escaped" "$plugin_makefile"; then
              SDK_ROOT_ESC="$sdk_dir_escaped" perl -0pi -e '
                s/\$\(CPPFLAGS\)/-I$ENV{SDK_ROOT_ESC} \$\(CPPFLAGS\)/g;
              ' "$plugin_makefile"
            fi
          fi

          mkdir -p "$(dirname "$headless_hise_sdk_dir")"
          if [[ ! -e "$headless_hise_sdk_dir" ]]; then
            ln -s "$sdk_dir" "$headless_hise_sdk_dir"
          fi

          wrapper="$hise/JUCE/modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp"
          if [[ -f "$wrapper" ]]; then
            perl -0pi -e '
              s/list->getInt\s*\(\s*Vst::ChannelContext::kChannelColorKey\s*,\s*colour\s*\)/list->getInt (Vst::ChannelContext::kChannelColorKey, (Steinberg::int64&) colour)/g;
              s/jmax\s*\(\s*\(juce::int64\)\s*0\s*,\s*processContext\.projectTimeSamples\s*\)/jmax ((juce::int64) 0, (juce::int64) processContext.projectTimeSamples)/g;
            ' "$wrapper"
          fi

          faust_include="$hise/tools/faust/include/faust"
          mkdir -p "$faust_include"
          cat > "$faust_include/export.h" <<'EOF'
          #pragma once
          #ifndef FAUST_API
          #define FAUST_API
          #endif
          #ifndef FAUSTMAJORVERSION
          #define FAUSTMAJORVERSION 2
          #endif
          #ifndef FAUSTMINORVERSION
          #define FAUSTMINORVERSION 74
          #endif
          #ifndef FAUSTPATCHVERSION
          #define FAUSTPATCHVERSION 6
          #endif
          EOF

          client_utils="$VST3_ROOT/JuceLibraryCode/include_juce_audio_plugin_client_utils.cpp"
          if [[ -f "$client_utils" ]]; then
            printf '%s\n' '#include "AppConfig.h"' > "$client_utils"
          fi

      - name: Build Linux VST3
        shell: bash
        run: |
          set -euo pipefail
          plugin_makefile_dir="$VST3_ROOT/Builds/LinuxMakefile"
          plugin_makefile="$plugin_makefile_dir/Makefile"

          if [[ -f "$plugin_makefile" ]] && grep -Eq '^VST3[[:space:]]*:' "$plugin_makefile"; then
            echo "Building Linux VST3 from $plugin_makefile_dir"
            make -C "$plugin_makefile_dir" CONFIG=Release VST3 -j"$(nproc)"
          else
            echo "No VST3 target found in $plugin_makefile"
            exit 1
          fi

      - name: Inspect runtime deps (Linux)
        shell: bash
        run: |
          set -euo pipefail
          target_file="$(find "$VST3_ROOT" -type f -path "*.vst3/Contents/*-linux/*.so" | head -n1)"
          if [[ -z "${target_file:-}" ]]; then
            echo "No Linux binary found for dependency inspection"
            exit 1
          fi
          echo "Inspecting: $target_file"
          ldd "$target_file" || true
          strings "$target_file" | grep -E 'GLIBC_[0-9]+\.[0-9]+' | sort -u | tail -n 10 || true

      - name: Package (Linux)
        shell: bash
        run: |
          set -euo pipefail
          mkdir -p dist
          mapfile -d '' bundles < <(find "$VST3_ROOT" -type d -name "*.vst3" -print0)

          for bundle in "${bundles[@]}"; do
            base="$(basename "$bundle")"
            (cd "$(dirname "$bundle")" && zip -r "$GITHUB_WORKSPACE/dist/${base}.zip" "$base")
          done

          if ! compgen -G "dist/*.zip" > /dev/null; then
            echo "No Linux build artifacts found"
            exit 1
          fi
          ls -la dist

      - name: Upload artifacts (Linux)
        uses: actions/upload-artifact@v4
        with:
          name: linux-builds-unsigned
          path: dist/*.zip