CI: Sync configuration with 4.4 branch

Includes cherry-pick of warning fixes from 8d1462c748
and template builds unit tests fixes from 17929a3443.

Also a Windows MSVC detection fix for SCons 4.6.0+ from f682406cf2.

.github/actions/download-artifact/action.yml

@@ -1,15 +1,17 @@
 name: Download Godot artifact
 description: Download the Godot artifact.
+
 inputs:
   name:
     description: The artifact name.
-    default: "${{ github.job }}"
+    default: ${{ github.job }}
   path:
     description: The path to download and extract to.
     required: true
-    default: "./"
+    default: ./
+
 runs:
-  using: "composite"
+  using: composite
   steps:
     - name: Download Godot Artifact
       uses: actions/download-artifact@v4

.github/actions/godot-api-dump/action.yml

@@ -1,24 +0,0 @@
-name: Dump Godot API
-description: Dump Godot API for GDExtension
-inputs:
-  bin:
-    description: The path to the Godot executable
-    required: true
-runs:
-  using: "composite"
-  steps:
-    # Dump GDExtension interface and API
-    - name: Dump GDExtension interface and API for godot-cpp build
-      shell: sh
-      run: |
-        ${{ inputs.bin }} --headless --dump-gdextension-interface --dump-extension-api
-        mkdir godot-api
-        cp -f gdextension_interface.h godot-api/
-        cp -f extension_api.json godot-api/
-
-    - name: Upload API dump
-      uses: ./.github/actions/upload-artifact
-      with:
-        name: 'godot-api-dump'
-        path: './godot-api/*'
-

.github/actions/godot-build/action.yml

@@ -1,36 +1,52 @@
 name: Build Godot
 description: Build Godot with the provided options.
+
 inputs:
   target:
     description: Build target (editor, template_release, template_debug).
-    default: "editor"
+    default: editor
   tests:
     description: Unit tests.
     default: false
+    required: false
   platform:
     description: Target platform.
     required: false
   sconsflags:
+    description: Additional SCons flags.
     default: ""
+    required: false
   scons-cache:
-    description: The scons cache path.
-    default: "${{ github.workspace }}/.scons-cache/"
+    description: The SCons cache path.
+    default: ${{ github.workspace }}/.scons_cache/
   scons-cache-limit:
-    description: The scons cache size limit.
+    description: The SCons cache size limit.
     # actions/cache has 10 GiB limit, and GitHub runners have a 14 GiB disk.
     # Limit to 7 GiB to avoid having the extracted cache fill the disk.
     default: 7168
 runs:
-  using: "composite"
+  using: composite
   steps:
-    - name: Scons Build
+    - name: SCons Build
       shell: sh
       env:
-          SCONSFLAGS: ${{ inputs.sconsflags }}
-          SCONS_CACHE: ${{ inputs.scons-cache }}
-          SCONS_CACHE_LIMIT: ${{ inputs.scons-cache-limit }}
+        SCONSFLAGS: ${{ inputs.sconsflags }}
+        SCONS_CACHE: ${{ inputs.scons-cache }}
+        SCONS_CACHE_LIMIT: ${{ inputs.scons-cache-limit }}
       run: |
         echo "Building with flags:" platform=${{ inputs.platform }} target=${{ inputs.target }} tests=${{ inputs.tests }} ${{ env.SCONSFLAGS }}
-        if [ "${{ inputs.target }}" != "editor" ]; then rm -rf editor; fi  # Ensure we don't include editor code.
+
+        if [ "${{ inputs.target }}" != "editor" ]; then
+          # Ensure we don't include editor code in export template builds.
+          rm -rf editor
+        fi
+
+        if [ "${{ github.event.number }}" != "" ]; then
+          # Set build identifier with pull request number if available. This is displayed throughout the editor.
+          export BUILD_NAME="gh-${{ github.event.number }}"
+        else
+          export BUILD_NAME="gh"
+        fi
+
         scons platform=${{ inputs.platform }} target=${{ inputs.target }} tests=${{ inputs.tests }} ${{ env.SCONSFLAGS }}
         ls -l bin/

.github/actions/godot-cache-restore/action.yml

@@ -1,21 +1,21 @@
-name: Setup Godot build cache
-description: Setup Godot build cache.
+name: Restore Godot build cache
+description: Restore Godot build cache.
 inputs:
   cache-name:
     description: The cache base name (job name by default).
-    default: "${{github.job}}"
+    default: ${{ github.job }}
   scons-cache:
-    description: The scons cache path.
-    default: "${{github.workspace}}/.scons-cache/"
+    description: The SCons cache path.
+    default: ${{ github.workspace }}/.scons_cache/
+
 runs:
-  using: "composite"
+  using: composite
   steps:
-    # Upload cache on completion and check it out now
-    - name: Load .scons_cache directory
-      uses: actions/cache@v4
+    - name: Restore SCons cache directory
+      uses: actions/cache/restore@v4
       with:
-        path: ${{inputs.scons-cache}}
-        key: ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
+        path: ${{ inputs.scons-cache }}
+        key: ${{ inputs.cache-name }}-${{ env.GODOT_BASE_BRANCH }}-${{ github.ref }}-${{ github.sha }}
 
         # We try to match an existing cache to restore from it. Each potential key is checked against
         # all existing caches as a prefix. E.g. 'linux-template-minimal' would match any cache that
@@ -29,7 +29,7 @@ runs:
         #   4. A partial match for the same base branch only (not ideal, matches any PR with the same base branch).
 
         restore-keys: |
-          ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}-${{github.sha}}
-          ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-${{github.ref}}
-          ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}-refs/heads/${{env.GODOT_BASE_BRANCH}}
-          ${{inputs.cache-name}}-${{env.GODOT_BASE_BRANCH}}
+          ${{ inputs.cache-name }}-${{ env.GODOT_BASE_BRANCH }}-${{ github.ref }}-${{ github.sha }}
+          ${{ inputs.cache-name }}-${{ env.GODOT_BASE_BRANCH }}-${{ github.ref }}
+          ${{ inputs.cache-name }}-${{ env.GODOT_BASE_BRANCH }}-refs/heads/${{ env.GODOT_BASE_BRANCH }}
+          ${{ inputs.cache-name }}-${{ env.GODOT_BASE_BRANCH }}

.github/actions/godot-cache-save/action.yml

@@ -0,0 +1,18 @@
+name: Save Godot build cache
+description: Save Godot build cache.
+inputs:
+  cache-name:
+    description: The cache base name (job name by default).
+    default: ${{ github.job }}
+  scons-cache:
+    description: The SCons cache path.
+    default: ${{ github.workspace }}/.scons_cache/
+
+runs:
+  using: composite
+  steps:
+    - name: Save SCons cache directory
+      uses: actions/cache/save@v4
+      with:
+        path: ${{ inputs.scons-cache }}
+        key: ${{ inputs.cache-name }}-${{ env.GODOT_BASE_BRANCH }}-${{ github.ref }}-${{ github.sha }}

.github/actions/godot-converter-test/action.yml

@@ -1,11 +1,13 @@
 name: Test Godot project converter
 description: Test the Godot project converter.
+
 inputs:
   bin:
     description: The path to the Godot executable
     required: true
+
 runs:
-  using: "composite"
+  using: composite
   steps:
     - name: Test 3-to-4 conversion
       shell: sh

.github/actions/godot-cpp-build/action.yml

@@ -0,0 +1,40 @@
+name: Build godot-cpp
+description: Build godot-cpp with the provided options.
+
+inputs:
+  bin:
+    description: Path to the Godot binary.
+    required: true
+    type: string
+  scons-flags:
+    description: Additional SCons flags.
+    type: string
+  scons-cache:
+    description: The SCons cache path.
+    default: ${{ github.workspace }}/.scons_cache/
+    type: string
+  godot-cpp-branch:
+    description: The godot-cpp branch.
+    default: master
+    type: string
+
+runs:
+  using: composite
+  steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        repository: godotengine/godot-cpp
+        ref: ${{ inputs.godot-cpp-branch }}
+        path: godot-cpp
+
+    - name: Extract API
+      shell: sh
+      run: ${{ inputs.bin }} --headless --dump-gdextension-interface --dump-extension-api
+
+    - name: SCons Build
+      shell: sh
+      env:
+        SCONS_CACHE: ${{ inputs.scons-cache }}
+      run: scons --directory=./godot-cpp/test "gdextension_dir=${{ github.workspace }}" ${{ inputs.scons-flags }}

.github/actions/godot-deps/action.yml

@@ -1,27 +1,31 @@
-name: Setup python and scons
-description: Setup python, install the pip version of scons.
+name: Setup Python and SCons
+description: Setup Python, install the pip version of SCons.
+
 inputs:
   python-version:
-    description: The python version to use.
-    default: "3.x"
+    description: The Python version to use.
+    default: 3.x
   python-arch:
-    description: The python architecture.
-    default: "x64"
+    description: The Python architecture.
+    default: x64
+  scons-version:
+    description: The SCons version to use.
+    default: 4.8.1
+
 runs:
-  using: "composite"
+  using: composite
   steps:
-    # Use python 3.x release (works cross platform)
     - name: Set up Python 3.x
       uses: actions/setup-python@v5
       with:
-        # Semantic version range syntax or exact version of a Python version
+        # Semantic version range syntax or exact version of a Python version.
         python-version: ${{ inputs.python-version }}
-        # Optional - x64 or x86 architecture, defaults to x64
+        # Optional - x64 or x86 architecture, defaults to x64.
         architecture: ${{ inputs.python-arch }}
 
-    - name: Setup scons
+    - name: Setup SCons
       shell: bash
       run: |
         python -c "import sys; print(sys.version)"
-        python -m pip install scons==4.4.0
+        python -m pip install scons==${{ inputs.scons-version }}
         scons --version

.github/actions/godot-project-test/action.yml

@@ -1,11 +1,13 @@
 name: Test Godot project
 description: Run the test Godot project.
+
 inputs:
   bin:
     description: The path to the Godot executable
     required: true
+
 runs:
-  using: "composite"
+  using: composite
   steps:
     # Download and extract zip archive with project, folder is renamed to be able to easy change used project
     - name: Download test project

.github/actions/upload-artifact/action.yml

@@ -1,19 +1,22 @@
 name: Upload Godot artifact
 description: Upload the Godot artifact.
+
 inputs:
   name:
     description: The artifact name.
-    default: "${{ github.job }}"
+    default: ${{ github.job }}
   path:
     description: The path to upload.
     required: true
-    default: "bin/*"
+    default: bin/*
+
 runs:
-  using: "composite"
+  using: composite
   steps:
     - name: Upload Godot Artifact
       uses: actions/upload-artifact@v4
       with:
         name: ${{ inputs.name }}
         path: ${{ inputs.path }}
-        retention-days: 14
+        # Default is 90 days.
+        retention-days: 60