GHA: Update setup script and make build workflow for GDExtension

.github/workflows/gdextension_linux.yml

@@ -0,0 +1,139 @@
+name: 🐧 Linux GDExtension builds
+on:
+  workflow_call:
+    inputs:
+      godot-cpp-version:
+        description: Ref in the godot-cpp repository.
+        type: string
+        default: 4.2
+      limboai-treeish:
+        description: A tag, branch or commit hash in the LimboAI repository.
+        type: string
+        default: master
+      # test-build:
+      #   description: Should we perform only a limited number of test builds?
+      #   type: boolean
+      #   default: false
+
+  workflow_dispatch:
+    inputs:
+      godot-cpp-version:
+        description: Ref in the godot-cpp repository.
+        type: string
+        default: 4.2
+      limboai-treeish:
+        description: A tag, branch or commit hash in the LimboAI repository.
+        type: string
+        default: master
+      # test-build:
+      #   description: Should we perform only a limited number of test builds?
+      #   type: boolean
+      #   default: false
+
+# Global Settings
+env:
+  SCONS_CACHE_LIMIT: 4096
+  SCONSFLAGS: dev_build=no debug_symbols=no symbol_visibility=auto
+
+jobs:
+  gdextension-linux:
+    runs-on: "ubuntu-20.04"
+    name: ${{ matrix.opts.name }}
+    strategy:
+      fail-fast: false
+      matrix:
+        opts:
+          - name: GDExtension (x86_64, release)
+            target: template_release
+            arch: x86_64
+            should-build: true
+
+          - name: GDExtension (x86_64, debug)
+            target: editor
+            arch: x86_64
+            should-build: true
+
+        exclude:
+          - { opts: {should-build: false }}
+
+    env:
+      BIN: liblimboai.linux.${{matrix.opts.target}}.${{matrix.opts.arch}}
+
+    steps:
+      - name: Clone godot-cpp
+        uses: actions/checkout@v4
+        with:
+          repository: godotengine/godot-cpp
+          path: godot-cpp
+          ref: ${{ inputs.godot-cpp-version }}
+
+      - name: Clone LimboAI module
+        uses: actions/checkout@v4
+        with:
+          path: limboai
+          ref: ${{ inputs.limboai-treeish }}
+
+      # Inits GODOT_VERSION, LIMBOAI_VERSION and NAME_PREFIX environment variables.
+      - uses: ./limboai/.github/actions/init-version
+
+      # About sed see: https://github.com/godotengine/buildroot/issues/6
+      - name: Set up buildroot x86_64
+        if: matrix.opts.arch == 'x86_64'
+        run: |
+          wget https://download.tuxfamily.org/godotengine/toolchains/linux/x86_64-godot-linux-gnu_sdk-buildroot.tar.bz2
+          tar -xjf x86_64-godot-linux-gnu_sdk-buildroot.tar.bz2
+          mv x86_64-godot-linux-gnu_sdk-buildroot buildroot
+          cd buildroot
+          sed -i x86_64-godot-linux-gnu/sysroot/usr/lib/pkgconfig/dbus-1.pc -e "s@/lib@/lib64@g"
+          ./relocate-sdk.sh
+          cd ..
+
+      - name: Set up buildroot x86_32
+        if: matrix.opts.arch == 'x86_32'
+        run: |
+          wget https://download.tuxfamily.org/godotengine/toolchains/linux/i686-godot-linux-gnu_sdk-buildroot.tar.bz2
+          tar -xjf i686-godot-linux-gnu_sdk-buildroot.tar.bz2
+          mv i686-godot-linux-gnu_sdk-buildroot buildroot
+          cd buildroot
+          ./relocate-sdk.sh
+          cd ..
+
+      - name: Set up scons cache
+        uses: actions/cache@v3
+        with:
+          path: ${{github.workspace}}/.scons_cache/
+          key: ${{env.BIN}}-${{inputs.godot-cpp-version}}-${{inputs.limboai-treeish}}-${{env.LIMBOAI_VERSION}}
+          restore-keys: |
+            ${{env.BIN}}-${{inputs.godot-cpp-version}}-${{inputs.limboai-treeish}}-${{env.LIMBOAI_VERSION}}
+            ${{env.BIN}}-${{inputs.godot-cpp-version}}-${{inputs.limboai-treeish}}
+            ${{env.BIN}}-${{inputs.godot-cpp-version}}
+
+      - name: Setup project structure for GDExtension
+        shell: bash
+        run: |
+          bash ./limboai/gdextension/setup_gdextension.sh
+          ls
+          ls -R demo/
+
+      - name: Compilation
+        env:
+          SCONS_CACHE: ${{github.workspace}}/.scons_cache/
+        run: |
+          PATH=${GITHUB_WORKSPACE}/buildroot/bin:$PATH
+          scons platform=linux target=${{matrix.opts.target}} arch=${{matrix.opts.arch}} ${{env.SCONSFLAGS}}
+
+      - name: Prepare artifact
+        run: |
+          mkdir -p out/
+          cp -r --dereference demo/addons/ out/
+          strip out/addons/limboai/bin/liblimboai*
+          chmod +x out/addons/limboai/bin/liblimboai*
+          ls -R out/
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v3
+        env:
+          NAME: ${{env.NAME_PREFIX}}.gdextension
+        with:
+          name: ${{ env.NAME }}
+          path: out/*

.github/workflows/test_builds.yml

@@ -15,6 +15,10 @@ on:
         description: A tag, branch or commit hash in the Godot repository.
         type: string
         default: 4.2.1-stable
+      godot-cpp-version:
+        description: Ref in the godot-cpp repository.
+        type: string
+        default: 4.2
 
   pull_request:
     branches: [ master ]
@@ -28,6 +32,10 @@ on:
         description: A tag, branch or commit hash in the Godot repository.
         type: string
         default: 4.2.1-stable
+      godot-cpp-version:
+        description: Ref in the godot-cpp repository.
+        type: string
+        default: 4.2
 
 jobs:
   unit-tests:
@@ -130,3 +138,10 @@ jobs:
       godot-treeish: ${{ inputs.godot-treeish }}
       limboai-treeish: ${{ github.sha }}
       test-build: true
+
+  gdextension:
+    name: 🔌 GDExtension test build
+    uses: ./.github/workflows/gdextension_linux.yml
+    with:
+      godot-cpp-version: 4.2
+      limboai-treeish: ${{ github.sha }}

.gitignore

@@ -1,5 +1,6 @@
 # LimboAI-specific
 demo/addons/
+icons/*.import
 
 # Godot auto generated files
 *.gen.*

demo/project.godot

@@ -16,6 +16,10 @@ run/main_scene="res://examples/waypoints/example_waypoints.tscn"
 config/features=PackedStringArray("4.2")
 config/icon="res://icon.png"
 
+[debug]
+
+gdscript/warnings/native_method_override=1
+
 [gui]
 
 common/drop_mouse_on_gui_input_disabled=true

gdextension/setup_gdextension.sh

@@ -99,6 +99,15 @@ else
     highlight -- Skipping limboai.gdextension. File already exists!
 fi
 
+if [ ! -e "${PWD}/demo/addons/limboai/icons/" ]; then
+    pushd demo/addons/limboai/ > /dev/null
+    ln -s ../../../icons icons
+    popd > /dev/null
+    highlight -- Linked icons.
+else
+    highlight -- Skipping linking icons. File already exists!
+fi
+
 ${PYTHON} limboai/gdextension/update_icons.py --silent
 highlight -- Icon declarations updated.