Try to move ubuntu CI to its own file

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [windows-latest, ubuntu-latest, macos-latest]
+        os: [windows-latest, macos-latest]
         qt-version: [5.15.2, 5.12.10]
         build-system: [qmake, cmake]
         pch: [true]
@@ -57,11 +57,6 @@ jobs:
           path: ../Qt
           key: ${{ runner.os }}-QtCache-${{ matrix.qt-version }}-20210109
 
-      # LINUX
-      - name: Install p7zip (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu')
-        run: sudo apt-get update && sudo apt-get -y install p7zip-full
-
       - name: Install Qt
         uses: jurplel/install-qt-action@v2
         with:
@@ -126,82 +121,6 @@ jobs:
           name: chatterino-windows-x86-64-${{ matrix.qt-version }}-${{ matrix.build-system }}.zip
           path: build/chatterino-windows-x86-64.zip
 
-      # LINUX
-      - name: Install dependencies (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu')
-        run: |
-            sudo apt-get update
-            sudo apt-get -y install \
-                cmake \
-                virtualenv \
-                rapidjson-dev \
-                libssl-dev \
-                libboost-dev \
-                libxcb-randr0-dev \
-                libboost-system-dev \
-                libboost-filesystem-dev \
-                libpulse-dev \
-                libxkbcommon-x11-0 \
-                libgstreamer-plugins-base1.0-0 \
-                build-essential \
-                libgl1-mesa-dev \
-                libxcb-icccm4 \
-                libxcb-image0 \
-                libxcb-keysyms1 \
-                libxcb-render-util0 \
-                libxcb-xinerama0
-
-      - name: Build (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu') && matrix.build-system == 'qmake'
-        run: |
-            mkdir build
-            cd build
-            qmake PREFIX=/usr ..
-            make -j8
-        shell: bash
-
-      - name: Build with CMake (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu') && matrix.build-system == 'cmake'
-        run: |
-            mkdir build
-            cd build
-            cmake \
-              -DCMAKE_INSTALL_PREFIX=appdir/usr/ \
-              -DCMAKE_BUILD_TYPE=Release \
-              -DPAJLADA_SETTINGS_USE_BOOST_FILESYSTEM=On \
-              -DUSE_PRECOMPILED_HEADERS=${{ matrix.pch }} \
-              ..
-            make -j8
-        shell: bash
-
-      - name: Package - AppImage (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu')
-        run: |
-            cd build
-            sh ./../.CI/CreateAppImage.sh
-        shell: bash
-
-      - name: Package - .deb (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu')
-        run: |
-            cd build
-            sh ./../.CI/CreateUbuntuDeb.sh
-        shell: bash
-
-      - name: Upload artifact - AppImage (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu')
-        uses: actions/upload-artifact@v2.3.1
-        with:
-          name: Chatterino-x86_64-${{ matrix.qt-version }}-${{ matrix.build-system }}.AppImage
-          path: build/Chatterino-x86_64.AppImage
-
-      - name: Upload artifact - .deb (Ubuntu)
-        if: startsWith(matrix.os, 'ubuntu')
-        uses: actions/upload-artifact@v2.3.1
-        with:
-          name: Chatterino-${{ matrix.qt-version }}-${{ matrix.build-system }}.deb
-          path: build/Chatterino.deb
-
       # MACOS
       - name: Install dependencies (MacOS)
         if: startsWith(matrix.os, 'macos')

.github/workflows/build_on_linux.yml

@@ -0,0 +1,124 @@
+---
+name: Build on Linux
+
+on:
+  push:
+    branches:
+      - master
+    pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        qt-version: [5.15.2, 5.12.10]
+        build-system: [qmake, cmake]
+        pch: [true]
+        include:
+          - os: ubuntu-latest
+            qt-version: 5.15.2
+            build-system: cmake
+            pch: false
+
+    steps:
+      - uses: actions/checkout@v2.4.0
+        with:
+          submodules: true
+          fetch-depth: 0  # allows for tags access
+
+      - name: Cache Qt
+        id: cache-qt
+        uses: actions/cache@v2.1.7
+        with:
+          path: ../Qt
+          key: ${{ runner.os }}-QtCache-${{ matrix.qt-version }}-20210109
+
+      # LINUX
+      - name: Install p7zip (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu')
+        run: sudo apt-get update && sudo apt-get -y install p7zip-full
+
+      - name: Install Qt
+        uses: jurplel/install-qt-action@v2
+        with:
+          aqtversion: '==1.1.1'
+          cached: ${{ steps.cache-qt.outputs.cache-hit }}
+          extra: --external 7z
+          version: ${{ matrix.qt-version }}
+
+      - name: Install dependencies (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu')
+        run: |
+            sudo apt-get update
+            sudo apt-get -y install \
+                cmake \
+                virtualenv \
+                rapidjson-dev \
+                libssl-dev \
+                libboost-dev \
+                libxcb-randr0-dev \
+                libboost-system-dev \
+                libboost-filesystem-dev \
+                libpulse-dev \
+                libxkbcommon-x11-0 \
+                libgstreamer-plugins-base1.0-0 \
+                build-essential \
+                libgl1-mesa-dev \
+                libxcb-icccm4 \
+                libxcb-image0 \
+                libxcb-keysyms1 \
+                libxcb-render-util0 \
+                libxcb-xinerama0
+
+      - name: Build (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu') && matrix.build-system == 'qmake'
+        run: |
+            mkdir build
+            cd build
+            qmake PREFIX=/usr ..
+            make -j8
+        shell: bash
+
+      - name: Build with CMake (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu') && matrix.build-system == 'cmake'
+        run: |
+            mkdir build
+            cd build
+            cmake \
+              -DCMAKE_INSTALL_PREFIX=appdir/usr/ \
+              -DCMAKE_BUILD_TYPE=Release \
+              -DPAJLADA_SETTINGS_USE_BOOST_FILESYSTEM=On \
+              -DUSE_PRECOMPILED_HEADERS=${{ matrix.pch }} \
+              ..
+            make -j8
+        shell: bash
+
+      - name: Package - AppImage (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu')
+        run: |
+            cd build
+            sh ./../.CI/CreateAppImage.sh
+        shell: bash
+
+      - name: Package - .deb (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu')
+        run: |
+            cd build
+            sh ./../.CI/CreateUbuntuDeb.sh
+        shell: bash
+
+      - name: Upload artifact - AppImage (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu')
+        uses: actions/upload-artifact@v2.3.1
+        with:
+          name: Chatterino-x86_64-${{ matrix.qt-version }}-${{ matrix.build-system }}.AppImage
+          path: build/Chatterino-x86_64.AppImage
+
+      - name: Upload artifact - .deb (Ubuntu)
+        if: startsWith(matrix.os, 'ubuntu')
+        uses: actions/upload-artifact@v2.3.1
+        with:
+          name: Chatterino-${{ matrix.qt-version }}-${{ matrix.build-system }}.deb
+          path: build/Chatterino.deb
+