Linux port

.gitattributes

@@ -0,0 +1,2 @@
+# Shell scripts must stay LF even on Windows checkouts (they run on Linux).
+*.sh text eol=lf

.github/workflows/Build.yml

@@ -14,8 +14,14 @@ env:
   STEAM_PATH: temp
 
 jobs:
+  Linux64:
+    uses: ./.github/workflows/BuildLinux.yml
+    secrets: inherit
+
   Win64:
     runs-on: windows-2022
+    # The release step below attaches the Linux tarball, so wait for it.
+    needs: Linux64
     steps:
 
     - name: Checkout repo and submodules
@@ -107,6 +113,11 @@ jobs:
         name: "VRto3D-Installer-${{env.CommitHashShort}}"
         path: installer/Output/VRto3D-Installer.exe
 
+    - name: Download Linux tarball
+      uses: actions/download-artifact@v4
+      with:
+        name: vrto3d-linux64
+
     - name: GitHub pre-release
       uses: "marvinpinto/action-automatic-releases@latest"
       with:
@@ -116,6 +127,7 @@ jobs:
         title: "[${{env.CurrentDate}}] ${{github.event.repository.name}} r${{env.CommitCount}}@${{env.CommitHashShort}}"
         files: |
           output/${{github.event.repository.name}}.zip
+          vrto3d-linux64.tar.gz
           vrto3d_profiles.zip
           installer/Output/VRto3D-Installer.exe
           README_combined.jpg

.github/workflows/BuildLinux.yml

@@ -0,0 +1,53 @@
+name: Build Linux
+
+on:
+  push:
+    branches:
+      - linux_port
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+  # Called by Build.yml on main so the release ships the Linux tarball.
+  workflow_call:
+
+jobs:
+  Linux64:
+    # Oldest supported LTS: binaries link the runner's glibc, so building on
+    # 22.04 (glibc 2.35) keeps the tarball running on older distros and SteamOS.
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout repo and submodules
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+          token: ${{ secrets.SHARED_PAT }}
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y ninja-build libvulkan-dev libx11-dev \
+            libxrandr-dev libwayland-dev wayland-protocols libxkbcommon-dev \
+            libdrm-dev
+
+      - name: Configure
+        run: cmake -S vrto3d -B build -G Ninja -DCMAKE_BUILD_TYPE=RelWithDebInfo
+
+      - name: Build
+        run: cmake --build build
+
+      - name: Package driver + installer
+        run: |
+          mkdir -p package/vrto3d-linux64
+          cp -a build/output/drivers package/vrto3d-linux64/
+          cp installer/install.sh package/vrto3d-linux64/
+          cp LICENSE README.md package/vrto3d-linux64/
+          chmod +x package/vrto3d-linux64/install.sh
+          tar czf vrto3d-linux64.tar.gz -C package vrto3d-linux64
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: vrto3d-linux64
+          path: vrto3d-linux64.tar.gz

.gitignore

@@ -32,6 +32,7 @@ bld/
 [Ll]og/
 [Ll]ogs/
 output
+vrto3d/build
 
 # Visual Studio 2015/2017 cache/options directory
 .vs/