CI: Add Ubuntu 26 build

.github/scripts/.package.zsh

@@ -259,7 +259,7 @@ ${_usage_host:-}"
       cmake --build build_${target##*-} --config ${config} -t package ${cmake_args}
 
       # Mark certain deps as optional
-      build-aux/CI/linux/demote-deps.sh ${project_root}/release/*.deb Recommends '(mqtt)|(opencv)|(tesseract)|(usb)|(x11)'
+      build-aux/CI/linux/demote-deps.sh ${project_root}/release/*.deb Recommends '(mqtt)|(opencv)|(tesseract)|(usb)|(x11)|(libobs)'
 
       if [ ! -e ${project_root}/release/${output_name}.deb ]; then
         mv ${project_root}/release/*.deb ${project_root}/release/${output_name}.deb

.github/scripts/utils.zsh/setup_linux

@@ -35,14 +35,21 @@ if (( ! (${skips[(Ie)all]} + ${skips[(Ie)deps]}) )) {
     sudo apt-get install ${apt_args} gcc-${${target##*-}//_/-}-linux-gnu g++-${${target##*-}//_/-}-linux-gnu
   }
 
-  sudo add-apt-repository --yes ppa:obsproject/obs-studio
-  sudo apt update
+  local dist_version
+  read -r dist_version <<< "$(source /etc/os-release; print "${VERSION_ID}")"
 
-  sudo apt-get install ${apt_args} \
-    build-essential \
-    libgles2-mesa-dev \
-    libsimde-dev \
-    obs-studio
+  # The OBS PPA may not yet support newer Ubuntu versions.
+  # On those, use the native obs-studio packages and install libobs-dev separately,
+  # as it is not bundled in obs-studio itself on newer Ubuntu releases.
+  local -a obs_packages=(build-essential libgles2-mesa-dev libsimde-dev obs-studio)
+  if is-at-least 26.04 ${dist_version}; then
+    obs_packages+=(libobs-dev)
+  else
+    sudo add-apt-repository --yes ppa:obsproject/obs-studio
+    sudo apt update
+  fi
+
+  sudo apt-get install ${apt_args} ${obs_packages}
 
   local -a _qt_packages=()
 

.github/workflows/build-project.yaml

@@ -252,6 +252,77 @@ jobs:
           path: ${{ github.workspace }}/release/${{ steps.setup.outputs.pluginName }}-*-x86_64*-dbgsym.ddeb
           if-no-files-found: ignore
 
+  ubuntu-26-build:
+    name: Build for Ubuntu 26 🐧
+    runs-on: ubuntu-26.04
+    needs: check-event
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: Set Up Environment 🔧
+        id: setup
+        run: |
+          : Set Up Environment 🔧
+          if [[ "${RUNNER_DEBUG}" ]]; then set -x; fi
+
+          git_tag="$(git describe --tags)"
+
+          read -r product_name product_version <<< \
+            "$(jq -r '. | {name, version} | join(" ")' buildspec.json)"
+
+          echo "pluginName=${product_name}" >> $GITHUB_OUTPUT
+          echo "pluginVersion=${git_tag}" >> $GITHUB_OUTPUT
+
+      - uses: actions/cache@v5
+        id: ccache-cache
+        with:
+          path: ${{ github.workspace }}/.ccache
+          key: ${{ runner.os }}-ccache-x86_64-${{ needs.check-event.outputs.config }}
+          restore-keys: |
+            ${{ runner.os }}-ccache-x86_64-
+
+      - name: Set up Homebrew 🍺
+        uses: Homebrew/actions/setup-homebrew@main
+
+      - name: Build Plugin 🧱
+        uses: ./.github/actions/build-plugin
+        with:
+          target: x86_64
+          config: ${{ needs.check-event.outputs.config }}
+
+      - name: Run tests
+        uses: ./.github/actions/run-tests
+        with:
+          target: x86_64
+          config: ${{ needs.check-event.outputs.config }}
+
+      - name: Package Plugin 📀
+        uses: ./.github/actions/package-plugin
+        with:
+          package: ${{ fromJSON(needs.check-event.outputs.package) }}
+          target: x86_64
+          config: ${{ needs.check-event.outputs.config }}
+
+      - name: Upload Artifacts 📡
+        uses: actions/upload-artifact@v7
+        with:
+          name: ${{ steps.setup.outputs.pluginName }}-${{ steps.setup.outputs.pluginVersion }}-ubuntu-26.04-x86_64-${{ needs.check-event.outputs.commitHash }}
+          path: ${{ github.workspace }}/release/${{ steps.setup.outputs.pluginName }}-*-x86_64*.*
+
+      - name: Upload debug symbol artifacts 🪲
+        uses: actions/upload-artifact@v7
+        if: ${{ fromJSON(needs.check-event.outputs.package) }}
+        with:
+          name: ${{ steps.setup.outputs.pluginName }}-${{ steps.setup.outputs.pluginVersion }}-ubuntu-26.04-x86_64-${{ needs.check-event.outputs.commitHash }}-dbgsym
+          path: ${{ github.workspace }}/release/${{ steps.setup.outputs.pluginName }}-*-x86_64*-dbgsym.ddeb
+          if-no-files-found: ignore
+
   windows-build:
     name: Build for Windows 🪟
     runs-on: windows-2022

cmake/linux/defaults.cmake

@@ -22,6 +22,7 @@ set(CPACK_GENERATOR
     "DEB"
     CACHE STRING "CPack generator to use")
 set(CPACK_DEBIAN_PACKAGE_SHLIBDEPS ON)
+set(CPACK_DEBIAN_PACKAGE_DEPENDS "obs-studio")
 set(CPACK_DEBIAN_PACKAGE_MAINTAINER "${PLUGIN_EMAIL}")
 set(CPACK_SET_DESTDIR ON)