Add metkit build and test for CI demo

.github/workflows/build_and_test.yaml

@@ -0,0 +1,108 @@
+name: Build and Test Metkit
+
+on:
+  pull_request:
+  workflow_dispatch:
+  push:
+    branches:
+      - "master"
+      - "develop"
+    tags-ignore:
+      - "**"
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        runner:
+          - [self-hosted, platform-builder-debian-11]
+          - [self-hosted, platform-builder-ubuntu-22.04]
+          - [self-hosted, platform-builder-rocky-8.6]
+          - [self-hosted, platform-builder-fedora-37]
+    runs-on: ${{ matrix.runner }}
+    steps:
+      - name: Get specified recent CMake
+        run: |
+          CMAKE_VERSION=4.2.0
+          CMAKE_ROOT="cmake-${CMAKE_VERSION}"
+          mkdir -p "${CMAKE_ROOT}"
+          curl -L "https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-linux-x86_64.tar.gz" -o cmake.tar.gz
+          tar -xzf cmake.tar.gz --strip-components=1 -C "${CMAKE_ROOT}"
+          echo "${CMAKE_ROOT}/bin" >> "$GITHUB_PATH"
+      - name: Get ecbuild
+        uses: actions/checkout@v5
+        with:
+          repository: ecmwf/ecbuild
+          ref: develop
+          path: ecbuild
+      - name: Get cxx-dependencies
+        uses: actions/checkout@v5
+        with:
+          repository: ecmwf/cxx-dependencies
+          ref: master
+          path: cxx-dependencies-src
+          token: ${{ secrets.GH_REPO_READ_TOKEN }}
+          submodules: recursive
+      - name: Install dependencies
+        run: |
+          mkdir cxx-dependencies-build
+          BUILD_PATH=cxx-dependencies-build INSTALL_PREFIX=dependencies cxx-dependencies-src/build.sh
+      - name: Get eccodes
+        uses: actions/checkout@v5
+        with:
+          repository: ecmwf/eccodes
+          ref: develop
+          path: eccodes-src
+      - name: Install eccodes
+        run: |
+          mkdir eccodes-build
+          cmake \
+            -B eccodes-build \
+            -S eccodes-src \
+            -DCMAKE_INSTALL_PREFIX=dependencies \
+            -DCMAKE_PREFIX_PATH=dependencies \
+            -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+            -DENABLE_MEMFS=ON \
+            -DENABLE_AEC=ON
+          cmake --build eccodes-build -j -t install
+      - name: Get eckit
+        uses: actions/checkout@v5
+        with:
+          repository: ecmwf/eckit
+          ref: develop
+          path: eckit-src
+      - name: Install eckit
+        run: |
+          mkdir eckit-build
+          cmake \
+            -B eckit-build \
+            -S eckit-src \
+            -DCMAKE_INSTALL_PREFIX=dependencies \
+            -DCMAKE_PREFIX_PATH=dependencies \
+            -DCMAKE_BUILD_TYPE=RelWithDebInfo
+          cmake --build eckit-build -j -t install
+      - name: Get metkit
+        uses: actions/checkout@v5
+        with:
+          path: metkit-src
+      - name: Build metkit
+        run: |
+          export PATH=$(pwd)/dependencies/bin:$PATH
+          mkdir metkit-build
+          cmake \
+            -B metkit-build \
+            -S metkit-src \
+            -DCMAKE_INSTALL_PREFIX=dependencies \
+            -DCMAKE_PREFIX_PATH=dependencies \
+            -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+            -DENABLE_TOOLS=ON
+          cmake --build metkit-build -j -t install
+          cd metkit-build
+          ctest -j $(nproc) --output-on-failure
+  build-mars-client-bundle:
+    uses: ozaq/test-bundle/.github/workflows/build.yml@demo/ci
+    secrets:
+      GH_REPO_READ_TOKEN: ${{ secrets.GH_REPO_READ_TOKEN }}
+    with:
+      ref: ${{ github.ref }}
+