add Linux_x86, Linux_x86_64, Linux_SDL1 to GH Actions

.github/workflows/Linux_x86.yml

@@ -0,0 +1,46 @@
+name: Linux_x86
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Create Build Environment
+      run: sudo dpkg --add-architecture i386 && sudo apt-get update -y && sudo apt-get install -y cmake file g++-multilib git libfmt-dev:i386 libsdl2-dev:i386 libsdl2-ttf-dev:i386 libsodium-dev:i386 rpm wget
+
+    - name: Configure CMake
+      shell: bash
+      working-directory: ${{github.workspace}}
+      run: cmake -S. -Bbuild -DNIGHTLY_BUILD=ON -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_TOOLCHAIN_FILE=../CMake/32bit.cmake
+
+    - name: Build
+      working-directory: ${{github.workspace}}
+      shell: bash
+      run: cmake --build build -j $(nproc) --target package
+
+    - name: Upload-Executable
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86
+        path: build/devilutionx
+
+    - name: Package
+      run: Packaging/nix/LinuxReleasePackaging.sh && Packaging/nix/AppImage.sh
+
+    - name: Upload-Package
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86.tar.xz
+        path: devilutionx.tar.xz
+
+    - name: Upload-AppImage
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86.appimage
+        path: devilutionx.appimage

.github/workflows/Linux_x86_64.yml

@@ -0,0 +1,46 @@
+name: Linux_x86_64
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Create Build Environment
+      run: sudo apt-get install -y cmake file g++ git libfmt-dev libsdl2-dev libsdl2-ttf-dev libsodium-dev rpm wget
+
+    - name: Configure CMake
+      shell: bash
+      working-directory: ${{github.workspace}}
+      run: cmake -S. -Bbuild .. -DNIGHTLY_BUILD=ON -DCMAKE_INSTALL_PREFIX=/usr
+
+    - name: Build
+      working-directory: ${{github.workspace}}
+      shell: bash
+      run: cmake --build build -j $(nproc) --target package
+
+    - name: Upload-Executable
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86_64
+        path: build/devilutionx
+
+    - name: Package
+      run: Packaging/nix/LinuxReleasePackaging.sh && Packaging/nix/AppImage.sh
+
+    - name: Upload-Package
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86_64.tar.xz
+        path: devilutionx.tar.xz
+
+    - name: Upload-AppImage
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86_64.appimage
+        path: devilutionx.appimage

.github/workflows/Linux_x86_64_SDL1.yml

@@ -0,0 +1,40 @@
+name: Linux_x86_64_SDL1
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Create Build Environment
+      run: sudo apt-get install -y cmake file g++ git libfmt-dev libsdl-dev libsdl-ttf2.0-dev libsodium-dev rpm
+
+    - name: Configure CMake
+      shell: bash
+      working-directory: ${{github.workspace}}
+      run: cmake -S. -Bbuild .. -DNIGHTLY_BUILD=ON -DUSE_SDL1=ON
+
+    - name: Build
+      working-directory: ${{github.workspace}}
+      shell: bash
+      run: cmake --build build -j $(nproc) --target package
+
+    - name: Upload-Executable
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86_64_SDL1
+        path: build/devilutionx
+
+    - name: Package
+      run: Packaging/nix/LinuxReleasePackaging.sh
+
+    - name: Upload-Package
+      uses: actions/upload-artifact@v2
+      with:
+        name: devilutionx_linux_x86_64_SDL1.tar.xz
+        path: devilutionx.tar.xz

.github/workflows/MacOSX.yml

@@ -1,4 +1,4 @@
-name: CMake
+name: MacOSX
 
 # When creating a new workflow in GitHub’s action builder the default trigger is the push event. We want to extend this to push and pull request events.
 on: [push, pull_request]
@@ -19,7 +19,7 @@ jobs:
     - uses: actions/checkout@v2
       with:
         fetch-depth: 0
-    
+
     - name: Create Build Environment
       run: brew bundle install
 
@@ -28,8 +28,8 @@ jobs:
       # access regardless of the host operating system
       shell: bash
       working-directory: ${{github.workspace}}/build
-      # Note the current convention is to use the -S and -B options here to specify source 
-      # and build directories, but this is only available with CMake 3.13 and higher.  
+      # Note the current convention is to use the -S and -B options here to specify source
+      # and build directories, but this is only available with CMake 3.13 and higher.
       # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
       run: cmake ..
 
@@ -37,8 +37,8 @@ jobs:
       working-directory: ${{github.workspace}}/build
       shell: bash
       # Execute the build.  You can specify a specific target with "--target <NAME>"
-      run: cmake --build . -j 2 --target package
-    
+      run: cmake --build . -j $(nproc) --target package
+
     - name: Release
       uses: softprops/action-gh-release@v1
       if: startsWith(github.ref, 'refs/tags/')