build(linux): generate glad sources at compile time (#4798)

Co-authored-by: Conn O'Griofa <connogriofa@gmail.com>

.github/workflows/ci-flatpak.yml

@@ -64,7 +64,7 @@ jobs:
 
       - name: Setup Dependencies Linux Flatpak
         run: |
-          python -m pip install ./packaging/linux/flatpak/deps/flatpak-builder-tools/node
+          python -m pip install ".[flatpak]"
 
           sudo apt-get update -y
           sudo apt-get install -y \
@@ -91,6 +91,19 @@ jobs:
       - name: Debug generated-sources.json
         run: cat generated-sources.json
 
+      - name: flatpak pip generator
+        # generates glad-dependencies.json for PyPI build-time dependencies (e.g. jinja2 for glad)
+        run: |
+          python \
+            ./packaging/linux/flatpak/deps/flatpak-builder-tools/pip/flatpak-pip-generator.py \
+            --runtime="org.freedesktop.Sdk//${PLATFORM_VERSION}" \
+            --output glad-dependencies \
+            --build-only \
+            --requirements-file=./third-party/glad/requirements.txt
+
+          # Copy generated pip sources into build dir alongside the manifest
+          cp glad-dependencies.json build/
+
       - name: Cache Flatpak build
         uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306  # v5.0.3
         with:
@@ -195,6 +208,7 @@ jobs:
         run: |
           mkdir -p flathub/modules
           cp "./build/generated-sources.json" "./flathub/"
+          cp "./build/glad-dependencies.json" "./flathub/"
           cp "./build/package-lock.json" "./flathub/"
           cp "./build/${APP_ID}.yml" "./flathub/"
           cp "./build/${APP_ID}.metainfo.xml" "./flathub/"

.github/workflows/ci-freebsd.yml

@@ -138,8 +138,8 @@ jobs:
           release: ${{ matrix.bsd_release }}
           run: |
             set -e
-            # install gcvor
-            python -m pip install "./scripts[test]"
+            # install glad deps and gcvor
+            python -m pip install ".[glad,test]"
 
             # fix git safe.directory issues
             git config --global --add safe.directory "*"

.github/workflows/ci-linux.yml

@@ -58,12 +58,6 @@ jobs:
             libxcb-dri3-dev \
             libxfixes-dev
 
-      - name: Setup python
-        id: python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
-        with:
-          python-version: '3.14'
-
       - name: Build latest libva
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -163,6 +157,12 @@ jobs:
           sudo apt-get clean
           sudo rm -rf /var/lib/apt/lists/*
 
+      - name: Setup python
+        id: python
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
+        with:
+          python-version: '3.14'
+
       - name: Run tests
         id: test
         working-directory: build/tests
@@ -181,7 +181,7 @@ jobs:
           (steps.test.outcome == 'success' || steps.test.outcome == 'failure')
         working-directory: build
         run: |
-          ${{ steps.python.outputs.python-path }} -m pip install "../scripts[test]"
+          ${{ steps.python.outputs.python-path }} -m pip install "..[test]"
           ${{ steps.python.outputs.python-path }} -m gcovr --gcov-executable "gcov-${GCC_VERSION}" . -r ../src \
             --exclude-noncode-lines \
             --exclude-throw-branches \

.github/workflows/ci-macos.yml

@@ -165,7 +165,7 @@ jobs:
           (steps.test.outcome == 'success' || steps.test.outcome == 'failure')
         working-directory: build
         run: |
-          python -m pip install "../scripts[test]"
+          python -m pip install "..[test]"
           python -m gcovr . -r ../src \
             --exclude-noncode-lines \
             --exclude-throw-branches \

.github/workflows/ci-windows.yml

@@ -322,7 +322,7 @@ jobs:
         shell: msys2 {0}
         working-directory: build
         run: |
-          ${{ steps.python-path.outputs.python-path }} -m pip install "../scripts[test]"
+          ${{ steps.python-path.outputs.python-path }} -m pip install "..[test]"
           ${{ steps.python-path.outputs.python-path }} -m gcovr . -r ../src \
             --exclude-noncode-lines \
             --exclude-throw-branches \

.github/workflows/localize.yml

@@ -31,7 +31,6 @@ jobs:
           python-version: '3.14'
 
       - name: Set up Python Dependencies
-        working-directory: scripts
         run: |
           python -m pip install --upgrade pip setuptools
           python -m pip install ".[locale]"