Add Linux CI for Debugging (#366)

* Attempt 0

* Attempt 1

* Attempt 2

* Attempt 3

* Removed push event

* L

.github/workflows/build-linux.yml

@@ -0,0 +1,73 @@
+name: Build Project (Linux)
+
+on:
+  workflow_dispatch:
+
+env:
+  LLVM_VERSION: 18
+  CMAKE_PRESET: linux-relwithdebinfo
+
+jobs:
+  build:
+    name: Build Linux
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          token: ${{ secrets.ORG_TOKEN }}
+
+      - name: Checkout Private Repository
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ secrets.ASSET_REPO }}
+          token: ${{ secrets.ASSET_REPO_TOKEN }}
+          path: ./private
+
+      - name: Setup ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ccache-${{ runner.os }}
+  
+      - name: Cache vcpkg
+        uses: actions/cache@v4
+        with:
+          path: |
+            ./thirdparty/vcpkg/downloads
+            ./thirdparty/vcpkg/packages
+          key: vcpkg-${{ runner.os }}-${{ hashFiles('vcpkg.json') }}
+          restore-keys: |
+              vcpkg-${{ runner.os }}-
+
+      - name: Install Dependencies
+        run: |-
+          sudo apt update
+          sudo apt install -y ninja-build llvm-${{ env.LLVM_VERSION }}-dev libgtk-3-dev
+
+      - name: Cache ccache Directory
+        uses: actions/cache@v4
+        with:
+          path: /tmp/ccache
+          key: ccache-${{ runner.os }}
+
+      - name: Prepare Project
+        run: cp ./private/* ./UnleashedRecompLib/private
+  
+      - name: Configure Project
+        env:
+          CCACHE_DIR: /tmp/ccache
+        run: cmake . --preset ${{ env.CMAKE_PRESET }} -DSDL2MIXER_VORBIS=VORBISFILE -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_C_COMPILER_LAUNCHER=ccache
+
+      - name: Build Project
+        env:
+          CCACHE_DIR: /tmp/ccache
+        run: cmake --build ./out/build/${{ env.CMAKE_PRESET }} --target UnleashedRecomp
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: UnleashedRecomp-Linux
+          path: ./out/build/${{ env.CMAKE_PRESET }}/UnleashedRecomp/UnleashedRecomp
+