test: Add CI workflow for building JNI native code.

Author: iphydf

.github/workflows/ci.yml

@@ -0,0 +1,26 @@
+---
+name: ci
+
+on:
+  pull_request:
+    branches: [master]
+
+# Cancel old PR builds when pushing new commits.
+concurrency:
+  group: build-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  common:
+    uses: TokTok/ci-tools/.github/workflows/common-ci.yml@master
+
+  docker-jvm:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Build toxchat/jvm-toxcore-c:jvm
+        uses: docker/build-push-action@v5
+        with:
+          file: docker/jvm.Dockerfile
+          tags: toxchat/jvm-toxcore-c:jvm

docker/jvm.Dockerfile

@@ -19,5 +19,5 @@ WORKDIR /work/jvm-toxcore-c
 COPY scripts/ /work/jvm-toxcore-c/scripts/
 RUN scripts/build-host "$PWD/_install/host/protobuf.stamp" "-j$(nproc)"
 RUN scripts/build-host "$PWD/_install/host/toxcore.stamp" "-j$(nproc)"
-COPY cpp/ /work/jvm-toxcore-c/cpp/
+COPY lib/src/cpp/ /work/jvm-toxcore-c/lib/src/cpp/
 RUN scripts/build-host #"-j$(nproc)"

lib/src/cpp/CMakeLists.txt

@@ -1,6 +1,5 @@
 project(tox4j-c)
 cmake_minimum_required(VERSION 2.8.7)
-set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/tools/cmake")
 
 if(NOT DEFINED CMAKE_MACOSX_RPATH)
   set(CMAKE_MACOSX_RPATH true)

scripts/dependencies.mk

@@ -1,7 +1,7 @@
 PRE_RULE = (echo "=== Building $@ ==="; ls -ld $@; true) && ls -ld $+
 POST_RULE = ls -ld $@
 
-$(BUILDDIR)/tox4j/Makefile: $(CURDIR)/cpp/CMakeLists.txt $(TOOLCHAIN_FILE) $(foreach i,protobuf toxcore,$(PREFIX)/$i.stamp)
+$(BUILDDIR)/tox4j/Makefile: $(CURDIR)/lib/src/cpp/CMakeLists.txt $(TOOLCHAIN_FILE) $(foreach i,protobuf toxcore,$(PREFIX)/$i.stamp)
 	@$(PRE_RULE)
 	mkdir -p $(@D)
 	cd $(@D) && cmake $(<D) $($(notdir $(@D))_CONFIGURE)