github: update build.yaml to use meson

Author: boxerab

.github/workflows/build.yaml

@@ -10,13 +10,8 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - ubuntu-22.04
-          - ubuntu-24.04
+          - ubuntu-latest
         compiler:
-          # The NetSurf build system can't find LLVM AR (it looks for it
-          # in /usr/lib instead of /usr/bin:
-          #     `make: /usr/lib/llvm-ar: No such file or directory`).
-          # So we need to make it explicit for llvm.
           - { vendor: gnu,  CC: gcc,   AR: ar }
           - { vendor: llvm, CC: clang, AR: llvm-ar }
 
@@ -38,39 +33,15 @@ jobs:
                gperf
                llvm
                pkg-config
+               meson
+               ninja-build
+               python3
 
-    - name: Get env.sh
-      run: |
-           mkdir projects
-           wget -O projects/env.sh https://raw.githubusercontent.com/netsurf-browser/netsurf/refs/heads/master/docs/env.sh
-
-    - name: Build and install project deps
+    - name: Configure Meson
       env:
         CC: ${{ matrix.compiler.CC }}
         AR: ${{ matrix.compiler.AR }}
-        TARGET: ${{ github.event.repository.name }}
-      run: |
-          export TARGET_WORKSPACE="$(pwd)/projects"
-          source projects/env.sh
-          ns-clone -d -s
-          ns-make-libs install
+      run: meson setup build -Dtests=true
 
     - name: Build Library
-      env:
-        CC: ${{ matrix.compiler.CC }}
-        AR: ${{ matrix.compiler.AR }}
-        TARGET: ${{ github.event.repository.name }}
-      run: |
-          export TARGET_WORKSPACE="$(pwd)/projects"
-          source projects/env.sh
-          make -j"$(nproc)"
-
-    - name: Unit Tests
-      env:
-        CC: ${{ matrix.compiler.CC }}
-        AR: ${{ matrix.compiler.AR }}
-        TARGET: ${{ github.event.repository.name }}
-      run: |
-          export TARGET_WORKSPACE="$(pwd)/projects"
-          source projects/env.sh
-          make test
+      run: meson compile -C build