Add Linux build job to CI and include Linux artifacts in release

.github/workflows/build-android-lua.yml

@@ -208,9 +208,114 @@ jobs:
         path: output/android/${{ matrix.architecture }}/
         retention-days: 7
 
+  build-linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        architecture: [x86_64, arm64]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Cache Lua source code
+      id: cache-lua-linux
+      uses: actions/cache@v4
+      with:
+        path: lua-${{ env.LUA_VERSION }}
+        key: lua-source-${{ env.LUA_VERSION }}
+
+    - name: Download Lua source code (if not cached)
+      if: steps.cache-lua-linux.outputs.cache-hit != 'true'
+      run: |
+        wget -q https://www.lua.org/ftp/lua-${{ env.LUA_VERSION }}.tar.gz
+        tar -xzf lua-${{ env.LUA_VERSION }}.tar.gz
+        rm lua-${{ env.LUA_VERSION }}.tar.gz
+
+    - name: Cache lua-cjson source
+      id: cache-lua-cjson-linux
+      uses: actions/cache@v4
+      with:
+        path: lua-cjson
+        key: lua-cjson-${{ env.LUA_CJSON_VERSION }}
+
+    - name: Download lua-cjson (if not cached)
+      if: steps.cache-lua-cjson-linux.outputs.cache-hit != 'true'
+      run: |
+        git clone --depth 1 --branch ${{ env.LUA_CJSON_VERSION }} \
+          https://github.com/openresty/lua-cjson.git
+
+    - name: Install Linux build dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y build-essential gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu
+
+    - name: Setup Linux toolchain
+      run: |
+        case "${{ matrix.architecture }}" in
+          "x86_64")
+            echo "CC=gcc" >> $GITHUB_ENV
+            echo "AR=ar" >> $GITHUB_ENV
+            echo "RANLIB=ranlib" >> $GITHUB_ENV
+            ;;
+          "arm64")
+            echo "CC=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
+            echo "AR=aarch64-linux-gnu-ar" >> $GITHUB_ENV
+            echo "RANLIB=aarch64-linux-gnu-ranlib" >> $GITHUB_ENV
+            ;;
+        esac
+
+    - name: Build Lua for Linux
+      run: |
+        cd lua-${{ env.LUA_VERSION }}
+        make clean
+        make linux CC="${{ env.CC }}" AR="${{ env.AR }} rcu" RANLIB="${{ env.RANLIB }}" MYCFLAGS="-fPIC -O2" MYLDFLAGS="-Wl,-E"
+
+        ${{ env.CC }} -shared -o src/liblua.so \
+          src/lapi.o src/lcode.o src/lctype.o src/ldebug.o src/ldo.o src/ldump.o src/lfunc.o \
+          src/lgc.o src/llex.o src/lmem.o src/lobject.o src/lopcodes.o src/lparser.o src/lstate.o \
+          src/lstring.o src/ltable.o src/ltm.o src/lundump.o src/lvm.o src/lzio.o \
+          src/lauxlib.o src/lbaselib.o src/ldblib.o src/liolib.o src/lmathlib.o src/loslib.o \
+          src/ltablib.o src/lstrlib.o src/lutf8lib.o src/loadlib.o src/lcorolib.o src/linit.o \
+          -ldl -lm
+
+        OUTPUT_NAME=liblua-${{ env.LUA_VERSION }}-linux-${{ matrix.architecture }}.so
+        mkdir -p ../output/linux/${{ matrix.architecture }}
+        cp src/liblua.so ../output/linux/${{ matrix.architecture }}/$OUTPUT_NAME
+        cp src/liblua.so ../output/linux/${{ matrix.architecture }}/liblua.so
+        echo "Built: $OUTPUT_NAME"
+
+    - name: Build lua-cjson for Linux
+      run: |
+        LUA_SRC=$PWD/lua-${{ env.LUA_VERSION }}
+        CJSON_SRC=$PWD/lua-cjson
+
+        cd $CJSON_SRC
+        make clean || true
+
+        ${{ env.CC }} -fPIC -O2 -shared \
+          -I$LUA_SRC/src \
+          -DLUA_USE_DLOPEN \
+          -o cjson.so \
+          lua_cjson.c strbuf.c fpconv.c \
+          -lm
+
+        OUTPUT_NAME=cjson-${{ env.LUA_CJSON_VERSION }}-linux-${{ matrix.architecture }}.so
+        mkdir -p ../output/linux/${{ matrix.architecture }}
+        cp cjson.so ../output/linux/${{ matrix.architecture }}/$OUTPUT_NAME
+
+        echo "Built cjson.so for linux-${{ matrix.architecture }}"
+
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v4
+      with:
+        name: lua-${{ env.LUA_VERSION }}-linux-${{ matrix.architecture }}
+        path: output/linux/${{ matrix.architecture }}/
+        retention-days: 7
+
   create-release:
     runs-on: ubuntu-latest
-    needs: build-android
+    needs: [build-android, build-linux]
     if: startsWith(github.ref, 'refs/tags/') || github.event_name == 'workflow_dispatch'
 
     steps:
@@ -221,7 +326,7 @@ jobs:
         uses: actions/download-artifact@v4
         with:
           path: artifacts
-          pattern: lua-*-android-*
+          pattern: lua-*-*
           merge-multiple: true
 
       - name: List downloaded files (debug)
@@ -232,11 +337,13 @@ jobs:
       - name: Create Release
         uses: softprops/action-gh-release@v1
         with:
-          name: Lua ${{ env.LUA_VERSION }} for Android
-          tag_name: Lua-v${{ env.LUA_VERSION }}-for-Android
+          name: Lua ${{ env.LUA_VERSION }} for Android and Linux
+          tag_name: Lua-v${{ env.LUA_VERSION }}-for-Android-and-Linux
           files: |
             artifacts/**/liblua-*-android-*.so
             artifacts/**/cjson-*-android-*.so
+            artifacts/**/liblua-*-linux-*.so
+            artifacts/**/cjson-*-linux-*.so
           generate_release_notes: false
           draft: false
           prerelease: false