Build different variants of OS and OpenVINO versions in CI

.github/workflows/main.yml

@@ -19,9 +19,11 @@ jobs:
         submodules: true
     - run: rustup component add rustfmt
     - run: cargo fmt --all -- --check
+    - run: cd crates/openvino-tensor-converter && cargo fmt --all -- --check
 
-  build:
-    name: Build from OpenVINO source
+  # Build and test from the git-submodule-included OpenVINO source code. 
+  source:
+    name: From source
     runs-on: ubuntu-20.04
     steps:
     - uses: actions/checkout@v2
@@ -31,15 +33,25 @@ jobs:
     - name: Checkout LFS obects
       run: git lfs checkout
     - name: Install system dependencies
-      run: sudo apt update && sudo apt install -y clang cmake libclang-dev gnupg2 libdrm2 libglib2.0-0 libusb-1.0-0-dev lsb-release libgtk-3-0 libtool libopencv-dev libopencv-core4.2 udev unzip dos2unix
+      run: sudo apt update && sudo apt install -y clang cmake libclang-dev gnupg2 libdrm2 libglib2.0-0 libusb-1.0-0-dev lsb-release libgtk-3-0 libtool udev unzip dos2unix
     - name: Build (openvino-sys from source)
       run: cargo build --verbose
     - name: Run tests
       run: cargo test --verbose
 
+  # Build and test from an existing OpenVINO installation inside a Docker image (i.e. download the
+  # binaries, then compile against these).
   docker:
-    name: Build from OpenVINO installation inside a Docker image
+    name: From binaries
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu18, ubuntu20]
+        version: [2020.4, 2021.1, 2021.2, 2021.3]
+        exclude:
+        - os: ubuntu20
+          version: 2020.4
     steps:
     - uses: actions/checkout@v2
       with:
@@ -48,4 +60,25 @@ jobs:
     - name: Checkout LFS obects
       run: git lfs checkout
     - name: Build the Docker image
-      run: docker build . --tag openvino-rs:$(date +%s)
+      run: docker build . --tag openvino-rs:${{ matrix.OS }}-${{ matrix.version }}-$(date +%s) --build-arg OS=${{ matrix.os }} --build-arg VERSION=${{ matrix.version }}
+
+  # Build and test the openvino-tensor-converter tool separately from the regular library builds;
+  # the OpenCV dependency is a bit fragile so the crate is not included by the default workspace
+  # commands.
+  converter:
+    name: Converter tool
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: crates/openvino-tensor-converter
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        submodules: recursive
+    - name: Install OpenCV
+      run: sudo apt update && sudo apt install libclang-dev libopencv-dev libopencv-core4.2
+    - name: Build
+      run: cargo build -v
+    - name: test
+      run: cargo test -v
+

Cargo.toml

@@ -1,2 +1,2 @@
 [workspace]
-members = ["crates/openvino", "crates/openvino-sys", "crates/openvino-tensor-converter"]
+members = ["crates/openvino", "crates/openvino-sys"]