Initial script.

.github/workflows/build.yml

@@ -0,0 +1,28 @@
+name: build
+
+on:
+  push:
+    branches: [ develop ]
+  pull_request:
+    branches: [ develop ]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ['ubuntu-latest', 'macos-latest', 'windows-latest']
+    steps:
+    - uses: actions/checkout@v4
+    - name: Windows
+      if: matrix.os == 'windows-latest'
+      run: |
+        msbuild inipp.sln
+        vstest.console /Platform:x64 x64\Debug\unittest.dll
+    - name: Ubuntu/MacOS
+      if: matrix.os != 'windows-latest'
+      run: |
+        cmake .
+        make
+        make test