ci: add ci workflow for unit tests

.github/workflows/ci.yml

@@ -0,0 +1,24 @@
+name: Continuous Integration Workflow
+
+on:
+  push:
+    branches:
+      - master
+
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  test_job:
+    runs-on: ubuntu-latest
+    name: A job to run the libutil tests
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Test action step
+        id: test
+        uses: ./.github/actions/test
+
+      - name: Get the output data
+        run: echo "ls -la results ${{ steps.test.outputs.files }}"

Dockerfile

@@ -0,0 +1,6 @@
+FROM ubuntu:20.04
+
+RUN apt-get update && apt-get install -y git gcc make
+
+COPY entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]

Makefile

@@ -61,7 +61,7 @@ $(EXAMPLE_TARGET): $(STATIC_TARGET)
 clean:
 	rm -f $(OBJ) $(STATIC_TARGET) $(DYNAMIC_TARGET) $(EXAMPLE_TARGET) $(TEST_TARGET)
 
-test: $(STATIC_TARGET)
+unit_test: $(STATIC_TARGET)
 	$(CC) $(TESTS) $(wildcard $(DEPSDIR)/tap.c/*.c) $(STATIC_TARGET) -I$(LINCDIR) -I$(SRCDIR) -I$(DEPSDIR) $(LIBS) -o $(TEST_TARGET)
 	./$(TEST_TARGET)
 	$(MAKE) clean

entrypoint.sh

@@ -0,0 +1,9 @@
+#!/bin/sh -l
+
+ret="$(make -s unit_test 2>/dev/null)"
+
+echo "$ret"
+
+if [ "$(echo "$ret" | grep 'not ok')" != "" ]; then
+  exit 1
+fi