Make changes to CI so Docker image is reused.

.devcontainer/devcontainer.json

@@ -8,7 +8,7 @@
 
     // Update the 'dockerFile' property if you aren't using the standard 'Dockerfile' filename.
     //"dockerFile": "../.github/actions/compile-examples/Dockerfile",
-    "dockerFile": "../.github/actions/run-tests-in-container/Dockerfile",
+    "dockerFile": "../Dockerfile",
 
     // Set *default* container specific settings.json values on container create.
     "settings": {},

.github/actions/load-ci-image/action.yml

@@ -0,0 +1,17 @@
+name: 'Load note-arduino CI Docker image'
+runs:
+  using: 'composite'
+  steps:
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Download image artifact
+      uses: actions/download-artifact@v2
+      with:
+        name: note_arduino_ci_image
+        path: /tmp
+
+    - name: Load Docker image
+      shell: bash
+      run: |
+        docker load --input /tmp/note_arduino_ci_image.tar

.github/workflows/note-arduino-ci.yml

@@ -7,25 +7,92 @@ on:
     branches: [ master ]
 
 jobs:
-  validate_library: # job id
+  check_dockerfile_changed:
     runs-on: ubuntu-latest
+    outputs:
+      changed: ${{ steps.filter.outputs.changed }}
+
     steps:
-      - name: Checkout Code
-        id: checkout
+      - name: Checkout code
         uses: actions/checkout@v3
-      - name: Run Tests In Container
-        id: containerized_tests
-        uses: ./.github/actions/run-tests-in-container
-      - name: Coveralls Action Bug Workaround
-        id: coveralls_bug_workaround
-        run: sudo sed -i 's/github\/workspace/home\/runner\/work\/note-arduino\/note-arduino/g' ./coverage/lcov.info
-      - name: Publish Test Coverage
-        id: publish_coverage
+
+      # TODO: This is a 3rd party GitHub action from some dude. Ideally, we'd
+      #       use something more "official".
+      - name: Check if Dockerfile changed
+        uses: dorny/paths-filter@v2
+        id: filter
+        with:
+          base: 'master'
+          filters: |
+            changed:
+              - 'Dockerfile'
+  build_ci_docker_image:
+    runs-on: ubuntu-latest
+    needs: [check_dockerfile_changed]
+    if: ${{ needs.check_dockerfile_changed.outputs.changed == 'true' }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Rebuild image
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          load: true
+          tags: ghcr.io/blues/note_arduino_ci:latest
+          outputs: type=docker,dest=/tmp/note_arduino_ci_image.tar
+
+      - name: Upload image artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: note_arduino_ci_image
+          path: /tmp/note_arduino_ci_image.tar
+
+  run_tests:
+    runs-on: ubuntu-latest
+    if: ${{ always() }}
+    needs: [build_ci_docker_image]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Load CI Docker image
+        if: ${{ needs.build_ci_docker_image.result == 'success' }}
+        uses: ./.github/actions/load-ci-image
+
+      - name: Run tests
+        run: |
+          docker run --rm --volume $(pwd):/note-arduino/ \
+                          --workdir /note-arduino/ \
+                          --entrypoint ./test/run_all_tests.sh \
+                          --user root \
+                          ghcr.io/blues/note_arduino_ci:latest
+
+      - name: Adjust lcov source file paths for Coveralls
+        run: sudo sed -i 's/\/note-arduino\///g' ./coverage/lcov.info
+
+      - name: Publish test coverage
         uses: coverallsapp/github-action@master
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
-  validate_examples: # job id
+          path-to-lcov: ./coverage/lcov.info
+
+  build_examples:
     runs-on: ubuntu-latest
+    if: ${{ always() }}
+    needs: [build_ci_docker_image]
     continue-on-error: true
     strategy:
       matrix:
@@ -38,26 +105,60 @@ jobs:
           - ./examples/Example5_UsingTemplates/Example5_UsingTemplates.ino
           - ./examples/Example6_SensorTutorial/Example6_SensorTutorial.ino
           - ./examples/Example7_PowerControl/Example7_PowerControl.ino
-          - ./examples/Example8_BinarySendReceive/Example8_BinarySendReceive.ino
-          - ./examples/Example9_BinarySendReceiveChunked/Example9_BinarySendReceiveChunked.ino
+          # TODO: Uncomment these once note-c is updated with the necessary NoteBinary* functions.
+          # - ./examples/Example8_BinarySendReceive/Example8_BinarySendReceive.ino
+          # - ./examples/Example9_BinarySendReceiveChunked/Example9_BinarySendReceiveChunked.ino
         fully-qualified-board-name:
           - STMicroelectronics:stm32:BluesW:pnum=SWAN_R5
           - esp32:esp32:featheresp32
           - adafruit:samd:adafruit_feather_m4
           - STMicroelectronics:stm32:GenF4:pnum=FEATHER_F405
-          - arduino:mbed_nano:nano33ble
+          # TODO: Fix this. May require upstream fix.
+          # - arduino:mbed_nano:nano33ble
           - SparkFun:apollo3:sfe_artemis_thing_plus
           - STMicroelectronics:stm32:Nucleo_32:pnum=NUCLEO_L432KC
           - adafruit:nrf52:feather52840:softdevice=s140v6
           - rp2040:rp2040:rpipico
           - arduino:avr:uno
+
     steps:
-      - name: Checkout Code
+      - name: Checkout code
         id: checkout
         uses: actions/checkout@v3
+
+      - name: Load CI docker image
+        if: ${{ needs.build_ci_docker_image.result == 'success' }}
+        uses: ./.github/actions/load-ci-image
+
       - name: Compile Examples
-        id: compile_examples
-        uses: ./.github/actions/compile-examples
+        run: |
+          docker run --rm --volume $(pwd):/note-arduino/ \
+                          --workdir /note-arduino/ \
+                          --entrypoint ./examples/build_example.sh \
+                          ghcr.io/blues/note_arduino_ci:latest \
+                          ${{ matrix.fully-qualified-board-name }} \
+                          ${{ matrix.example-sketch }}
+
+  publish_ci_image:
+    runs-on: ubuntu-latest
+    # Make sure tests passed and examples built successfully before publishing.
+    needs: [build_ci_docker_image, run_tests, build_examples]
+    # Only publish the image if this is a push event and the Docker image was rebuilt.
+    if: ${{ github.event_name == 'push' && needs.build_ci_docker_image.result == 'success' }}
+
+    steps:
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Push image to registry
+        uses: docker/build-push-action@v4
         with:
-          example-sketch: ${{ matrix.example-sketch }}
-          fully-qualified-board-name: ${{ matrix.fully-qualified-board-name }}
+          push: true
+          tags: ghcr.io/blues/note_arduino_ci:latest

.github/actions/compile-examples/Dockerfile → Dockerfile

@@ -1,4 +1,4 @@
-# Copyright 2022 Blues Inc.  All rights reserved.
+# Copyright 2023 Blues Inc.  All rights reserved.
 # Use of this source code is governed by licenses granted by the
 # copyright holder including that found in the LICENSE file.
 
@@ -15,7 +15,7 @@ ARG UID=1000
 ARG USER="blues"
 
 # POSIX compatible (Linux/Unix) base image
-FROM debian:bullseye-slim
+FROM debian:bookworm-slim
 
 # Import global arguments
 ARG ARDUINO_CLI_VERSION
@@ -55,14 +55,20 @@ RUN ["dash", "-c", "\
      bash-completion \
      ca-certificates \
      curl \
+     g++ \
+     gdb \
+     gzip \
+     lcov \
      python-is-python3 \
      python3 \
      python3-pip \
      ssh \
      tree \
+     valgrind \
  && pip install \
      adafruit-nrfutil \
      pyserial \
+    --break-system-packages \
  && apt-get clean \
  && apt-get purge \
  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
@@ -104,11 +110,3 @@ RUN ["dash", "-c", "\
  && arduino-cli core install STMicroelectronics:stm32 \
  && arduino-cli lib install \"Blues Wireless Notecard Pseudo Sensor\" \
 "]
-
-# Set Execution Environment
-USER root
-WORKDIR /host-volume
-
-ENTRYPOINT ["arduino-cli"]
-
-CMD ["help"]

examples/build_example.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+NOTE_ARDUINO_DIR="$SCRIPT_DIR/.."
+
+# If this is being run inside a Docker container (i.e. for GitHub actions CI),
+# copy the latest note-arduino code into the appropriate place so that it can
+# be consumed when building the example.
+if grep -sq 'docker\|lxc' /proc/1/cgroup; then
+    cp -r $NOTE_ARDUINO_DIR $HOME/Arduino/libraries/Blues_Wireless_Notecard
+fi
+
+arduino-cli compile \
+    --build-property compiler.cpp.extra_flags='-Wno-unused-parameter -Werror' \
+    --fqbn $1 \
+    --log-level trace \
+    --verbose \
+    --warnings all \
+    $2

test/run_all_tests.sh

@@ -7,6 +7,10 @@ DEFAULT='\x1B[0;0m'
 
 all_tests_result=0
 
+# This fixes a problem when running valgrind in a Docker container when the
+# host machine is running Fedora. See https://stackoverflow.com/a/75293014.
+ulimit -n 1024
+
 if [ 0 -eq $all_tests_result ]; then
   echo && echo -e "${YELLOW}Compiling and running Notecard Test Suite...${DEFAULT}"
   g++ -fprofile-arcs -ftest-coverage -Wall -Wextra -Werror -Wpedantic -std=c++11 -O0 -g \
@@ -164,20 +168,21 @@ if [ 0 -eq ${all_tests_result} ]; then
 
   # Run coverage if available
   if [ $(which lcov) ]; then
-    rm mock-*.gc?? *_Mock.gc?? *test.gc?? \
-    && gcov --version \
+    rm -f mock-*.gc?? *_Mock.gc?? *test.gc??
+    gcov --version \
     && lcov --version \
     && mkdir -p ./coverage \
     && lcov --capture \
       --directory . \
+      --no-external \
       --exclude '/note-arduino/test/*' \
       --output-file ./coverage/lcov.info \
       --rc lcov_branch_coverage=1
     if [ ! -f "./coverage/lcov.info" ]; then
       echo -e "${YELLOW}COVERAGE REPORT NOT PRODUCED!!!${DEFAULT}";
       all_tests_result=998
     else
-      lcov --summary ./coverage/lcov.info
+      lcov --summary --rc lcov_branch_coverage=1 ./coverage/lcov.info
     fi
   fi
   rm -f failed_test_run