feat: updated engine

engine/.github/workflows/linux_builds.yml

@@ -1,6 +1,11 @@
 name: 🐧 Linux Builds
 on:
   workflow_call:
+    inputs:
+      changed-files:
+        description: A list of changed files, pre-filtered for parsing by clangd-tidy.
+        required: true
+        type: string
   workflow_dispatch:
 
 # Global Settings
@@ -8,7 +13,6 @@ env:
   SCONS_FLAGS: >-
     dev_mode=yes
     module_text_server_fb_enabled=yes
-    "accesskit_sdk_path=${{ github.workspace }}/accesskit-c-0.21.2/"
   GODOT_CPP_BRANCH: 4.5
   DOTNET_NOLOGO: true
   DOTNET_CLI_TELEMETRY_OPTOUT: true
@@ -30,15 +34,17 @@ jobs:
           - name: Editor w/ Mono (target=editor)
             cache-name: linux-editor-mono
             target: editor
-            scons-flags: module_mono_enabled=yes
+            scons-flags: module_mono_enabled=yes compiledb=yes
             bin: ./bin/godot.linuxbsd.editor.x86_64.mono
             build-mono: true
             doc-test: true
             proj-conv: true
+            proj-export: true
             api-compat: true
             artifact: true
             # Validate godot-cpp compatibility on one arbitrary editor build.
             godot-cpp: true
+            clangd-tidy: true
 
           - name: Editor with doubles and GCC sanitizers (target=editor, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=mold)
             cache-name: linux-editor-double-sanitizers
@@ -54,6 +60,7 @@ jobs:
               linker=mold
             bin: ./bin/godot.linuxbsd.editor.dev.double.x86_64.san
             proj-test: true
+            free-space: true
 
           - name: Editor with clang sanitizers (target=editor, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)
             cache-name: linux-editor-llvm-sanitizers
@@ -67,6 +74,7 @@ jobs:
             bin: ./bin/godot.linuxbsd.editor.dev.x86_64.llvm.san
             # Test our oldest supported SCons/Python versions on one arbitrary editor build.
             legacy-scons: true
+            free-space: true
 
           - name: Editor with ThreadSanitizer (target=editor, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)
             cache-name: linux-editor-thread-sanitizer
@@ -77,6 +85,7 @@ jobs:
               use_llvm=yes
               linker=lld
             bin: ./bin/godot.linuxbsd.editor.dev.x86_64.llvm.san
+            free-space: true
 
           - name: Template w/ Mono, release (target=template_release)
             cache-name: linux-template-mono
@@ -110,7 +119,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           submodules: recursive
 
@@ -118,11 +127,12 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install libwayland-bin  # TODO: Figure out somehow how to embed this one.
-          if [ "${{ matrix.proj-test }}" == "true" ]; then
+          if [ "${{ matrix.proj-test }}" == "true" -o "${{ matrix.proj-export }}" == "true" ]; then
             sudo apt-get install mesa-vulkan-drivers
           fi
 
       - name: Free disk space on runner
+        if: matrix.free-space
         run: |
           echo "Disk usage before:" && df -h
           sudo rm -rf /usr/local/lib/android
@@ -143,8 +153,8 @@ jobs:
         uses: ./.github/actions/godot-deps
         with:
           # Sync with Ensure*Version in SConstruct.
-          python-version: 3.8
-          scons-version: 4.0
+          python-version: 3.9
+          scons-version: 4.4
 
       - name: Force remove preinstalled .NET SDKs
         if: matrix.build-mono
@@ -153,21 +163,21 @@ jobs:
 
       - name: Setup older .NET SDK as baseline
         if: matrix.build-mono
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           # Targeting the oldest version we want to support to ensure it still builds.
           dotnet-version: 8.0.100
 
       - name: Download pre-built AccessKit
-        uses: dsaltares/fetch-gh-release-asset@1.1.2
-        with:
-          repo: godotengine/godot-accesskit-c-static
-          version: tags/0.21.2
-          file: accesskit-c-0.21.2.zip
-          target: accesskit-c-0.21.2/accesskit_c.zip
-
-      - name: Extract pre-built AccessKit
-        run: unzip -o accesskit-c-0.21.2/accesskit_c.zip
+        shell: sh
+        id: accesskit-sdk
+        run: |
+          if python ./misc/scripts/install_accesskit.py; then
+            echo "ACCESSKIT_ENABLED=yes" >> "$GITHUB_OUTPUT"
+          else
+            echo "::warning::AccessKit SDK installation failed, building without AccessKit support."
+            echo "ACCESSKIT_ENABLED=no" >> "$GITHUB_OUTPUT"
+          fi
 
       - name: Install mold linker
         if: matrix.proj-test
@@ -176,10 +186,16 @@ jobs:
       - name: Compilation
         uses: ./.github/actions/godot-build
         with:
-          scons-flags: ${{ env.SCONS_FLAGS }} ${{ matrix.scons-flags }}
+          scons-flags: ${{ env.SCONS_FLAGS }} ${{ matrix.scons-flags }} accesskit=${{ steps.accesskit-sdk.outputs.ACCESSKIT_ENABLED }}
           platform: linuxbsd
           target: ${{ matrix.target }}
 
+      - name: Style checks via clangd-tidy
+        if: matrix.clangd-tidy
+        uses: ./.github/actions/clangd-tidy
+        with:
+          changed-files: ${{ inputs.changed-files }}
+
       - name: Compilation (godot-cpp)
         uses: ./.github/actions/godot-cpp-build
         if: matrix.godot-cpp
@@ -208,6 +224,7 @@ jobs:
       - name: Prepare artifact
         if: matrix.artifact
         run: |
+          rm -rf ./bin/build_deps
           strip bin/godot.*
           chmod +x bin/godot.*
 
@@ -238,11 +255,18 @@ jobs:
           git diff --color --exit-code && ! git ls-files --others --exclude-standard | sed -e 's/^/New doc file missing in PR: /' | grep 'xml$'
 
       # Check API backwards compatibility
-      - name: Check for GDExtension compatibility
+      - name: Check for GDExtension compatibility – JSON check
         if: matrix.api-compat
         run: |
           ./misc/scripts/validate_extension_api.sh "${{ matrix.bin }}"
 
+      - name: Test GDExtension compatibility – load methods
+        uses: ./.github/actions/godot-compat-test
+        if: matrix.api-compat
+        with:
+          bin: ${{ matrix.bin }}
+          reftags: "4.5-stable,4.4-stable"
+
       # Download and run the test project
       - name: Test Godot project
         uses: ./.github/actions/godot-project-test
@@ -250,6 +274,13 @@ jobs:
         with:
           bin: ${{ matrix.bin }}
 
+      # Test project export
+      - name: Test project export
+        uses: ./.github/actions/godot-project-export
+        if: matrix.proj-export
+        with:
+          bin: ${{ matrix.bin }}
+
       # Test the project converter
       - name: Test project converter
         uses: ./.github/actions/godot-converter-test