Simplify and modernize CI

Don't create unnecessary environment variables. Don't install packages
that are already installed on the runners. Query Homebrew for prefix
path. Use latest version of checkout action.

Author: eugmes

.github/workflows/ci.yml

@@ -6,9 +6,6 @@ on:
   pull_request:
     branches: [ master ]
 
-env:
-  BUILD_TYPE: Release
-
 jobs:
   build:
     strategy:
@@ -18,30 +15,29 @@ jobs:
         - macos-latest
         include:
         - os: ubuntu-latest
-          blocks: -DUNICODE_BLOCKS=/usr/share/unicode/Blocks.txt
-          install_packages: >
-            sudo apt update &&
-            sudo apt install cmake gettext libcairo2-dev libglib2.0-dev libfreetype6-dev libpango1.0-dev ninja-build pkg-config unicode-data
+          cmake_extra_args: -DUNICODE_BLOCKS=/usr/share/unicode/Blocks.txt
+          install_packages: |
+            sudo apt update
+            sudo apt install gettext libcairo2-dev libglib2.0-dev libfreetype6-dev libpango1.0-dev unicode-data
         - os: macos-latest
-          env:
-          - CMAKE_PREFIX_PATH: /usr/local/opt/gettext
-          install_packages: >
-            brew update &&
-            brew install cairo cmake fontconfig freetype gettext glib pango ninja pkg-config
+          cmake_extra_args: -DCMAKE_PREFIX_PATH=$(brew --prefix gettext)
+          install_packages: |
+            brew update
+            brew install cairo fontconfig freetype gettext glib pango pkg-config
 
-    runs-on: ${{matrix.os}}
+    runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Install Packages
       run: ${{ matrix.install_packages }}
 
     - name: Configure
-      run: cmake -GNinja -B${{ github.workspace }}/build -DCMAKE_BUILD_TYPE=${{ env.BUILD_TYPE }} ${{ matrix.blocks }}
+      run: cmake -GNinja -Bbuild -Wdev -DCMAKE_BUILD_TYPE=Release ${{ matrix.cmake_extra_args }}
 
     - name: Build
-      run: cmake --build ${{ github.workspace }}/build -v
+      run: cmake --build build -v
 
     - name: Test
-      run: ${{ github.workspace }}/build/src/fntsample --help
+      run: build/src/fntsample --help