1 files changed, 94 insertions, 0 deletions
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000000..d6e11fcdcb
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,94 @@
+name: build
+on:
+  pull_request:
+    branches:
+      - 'master'
+      - 'release-[0-9]+.[0-9]+'
+    paths:
+      - '**.cmake'
+      - '**/CMakeLists.txt'
+      - '**/CMakePresets.json'
+      - 'cmake.*/**'
+      - '.github/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref }}
+  cancel-in-progress: true
+
+env:
+  BIN_DIR: ${{ github.workspace }}/bin
+  INSTALL_PREFIX: ${{ github.workspace }}/nvim-install
+
+jobs:
+  macos-universal:
+    runs-on: macos-latest
+    timeout-minutes: 20
+    steps:
+      - uses: actions/checkout@v4
+      - run: ./.github/scripts/install_deps.sh
+      - run: printf 'NVIM_BUILD_TYPE=Release\n' >> $GITHUB_ENV
+
+      - name: Build universal binary
+        run: ./.github/scripts/build_universal_macos.sh
+
+  old-cmake:
+    name: Test oldest supported cmake
+    runs-on: ubuntu-22.04
+    timeout-minutes: 15
+    env:
+      CMAKE_URL: 'https://cmake.org/files/v3.10/cmake-3.10.0-Linux-x86_64.sh'
+      CMAKE_VERSION: '3.10.0'
+    steps:
+      - uses: actions/checkout@v4
+      - run: ./.github/scripts/install_deps.sh
+
+      - name: Set up environment
+        run: echo "$BIN_DIR" >> $GITHUB_PATH
+
+
+      - name: Install minimum required version of cmake
+        run: |
+          curl --retry 5 --silent --show-error --fail -o /tmp/cmake-installer.sh "$CMAKE_URL"
+          mkdir -p "$BIN_DIR" /opt/cmake-custom
+          chmod a+x /tmp/cmake-installer.sh
+          /tmp/cmake-installer.sh --prefix=/opt/cmake-custom --skip-license
+          ln -sfn /opt/cmake-custom/bin/cmake "$BIN_DIR/cmake"
+          cmake_version="$(cmake --version | head -1)"
+          echo "$cmake_version" | grep -qF "cmake version $CMAKE_VERSION" || {
+            echo "Unexpected CMake version: $cmake_version"
+            exit 1
+          }
+
+      - name: Build dependencies
+        run: make deps
+
+      - name: Build
+        run: make CMAKE_FLAGS="-D CI_BUILD=ON -D CMAKE_INSTALL_PREFIX:PATH=$INSTALL_PREFIX"
+
+      - name: Install
+        run: make install
+
+  use-existing-src:
+    name: Test USE_EXISTING_SRC_DIR=ON builds with no network access
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+      - run: ./.github/scripts/install_deps.sh
+
+      - name: Build bundled dependencies
+        run: make deps
+
+      - name: Clean bundled dependencies à la neovim/deps
+        run: |
+          rm -rf ./build
+          find .deps .deps/build -maxdepth 1 '!' \( -name .deps -o -name build -o -name src \) -exec rm -r '{}' +
+          cd .deps/build/src
+          rm -rf ./*-build
+          rm -rf ./*-stamp/*-{configure,build,install,done}
+          for d in *; do (cd "$d"; rm -rf ./autom4te.cache; make clean || true; make distclean || true); done
+
+      - name: Re-build bundled dependencies with no network access
+        run: unshare --map-root-user --net make deps DEPS_CMAKE_FLAGS=-DUSE_EXISTING_SRC_DIR=ON
+
+      - name: Build
+        run: make CMAKE_FLAGS="-D CI_BUILD=ON"