Create matrix for NEOVIM version

Author: erichlf

.github/workflows/default.yml

@@ -5,18 +5,25 @@ env:
 jobs:
   unit-tests:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        neovim-version: ["0.9.5", "0.10.0"]
+      fail-fast: false
+    name: NEOVIM ${{ matrix.neovim-version }}
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Pre-build devcontainer image
+      - name: Pre-build devcontainer image for NEOVIM ${{ matrix.neovim-version }}
         uses: devcontainers/ci@v0.3
         with:
-          imageName: ${{ env.IMAGE_NAME }}
-          cacheFrom: ${{ env.IMAGE_NAME }}
+          imageName: ${{ env.IMAGE_NAME }}-${{ matrix.neovim-version }}
+          cacheFrom: ${{ env.IMAGE_NAME }}-${{ matrix.neovim-version }}
           push: never
+          buildArgs: |
+            NEOVIM_VERSION=${{ matrix.neovim-version }}
       - name: Run tests inside the docker image
         uses: devcontainers/ci@v0.3
         with:
-          cacheFrom: ${{ env.IMAGE_NAME }}
+          cacheFrom: ${{ env.IMAGE_NAME }}-${{ matrix.neovim-version }}
           push: never
           runCmd: make test

Dockerfile

@@ -18,6 +18,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+ARG NEOVIM_VERSION=0.10.0
+
 FROM ubuntu:22.04 as builder
 
 # Install dependencies needed for building devcontainers/cli and developing in neovim
@@ -33,6 +35,12 @@ RUN apt-get update && \
   luajit \
   luarocks \
   git \
+  # Install NEOVIM
+  && curl -LO https://github.com/neovim/neovim/releases/download/v${NEOVIM_VERSION}/nvim-linux64.tar.gz \
+  && tar -xzf nvim-linux64.tar.gz \
+  && rm nvim-linux64.tar.gz \
+  && mv nvim-linux64 /opt/nvim \
+  && ln -s /opt/nvim/bin/nvim /usr/local/bin/nvim \
   # apt clean-up
   && apt-get autoremove -y \
   && rm -rf /var/lib/apt/lists/*