GitLab CI: Add web build

.gitignore

@@ -17,3 +17,7 @@ Thumbs.db
 /out/
 /.vs/
 /CMakeSettings.json
+
+# GitLab CI
+/public/
+/.gitlab-ci-local/

.gitlab-ci.yml

@@ -54,15 +54,37 @@ steamos:
     - cmake -Bbuild-steamos-release -GNinja -DCMAKE_BUILD_TYPE=Release -DBUILD_TESTING=0 -DJNGL_VIDEO=0 -DJNGL_BUILD_WEBP_FROM_SOURCE=1 -DBUILD_SHARED_LIBS=0
     - cmake --build build-steamos-release
 
+web:
+  image: emscripten/emsdk:3.1.61
+  stage: build
+  script:
+  - emcmake cmake -Bbuild-web
+  - cp -r data build-web/
+  - cd build-web
+  - make -j$(nproc)
+  - mkdir -p ../public/demo
+  - mv jngl-test.html ../public/demo
+  - mv jngl-test.wasm ../public/demo
+  - mv jngl-test.js ../public/demo
+  - mv jngl-test.data ../public/demo
+  artifacts:
+    paths:
+    - public/demo
+
 pages:
   stage: deploy
+  dependencies:
+  - web
   script:
   - microdnf install -y doxygen cmake make tar xz git >/dev/null
   - cd doc
   - cmake .
   - make
   - doxygen
+  - mv ../public __tmp
   - mv html ../public
+  - mv __tmp/demo ../public
+  - rm -r __tmp
   artifacts:
     paths:
     - public

CMakeLists.txt

@@ -13,6 +13,14 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
 	string(APPEND CMAKE_C_FLAGS " -Wno-shorten-64-to-32") # ogg, vorbis, etc. are full of these
 endif()
 
+if(${CMAKE_SYSTEM_NAME} MATCHES "Emscripten")
+	set(USE_FLAGS "-sUSE_SDL=2 -sUSE_FREETYPE=1 -sUSE_VORBIS=1")
+	string(APPEND CMAKE_CXX_FLAGS " ${USE_FLAGS} -sNO_DISABLE_EXCEPTION_CATCHING")
+	string(APPEND CMAKE_C_FLAGS " ${USE_FLAGS}")
+	string(APPEND CMAKE_EXE_LINKER_FLAGS " ${USE_FLAGS} -sASSERTIONS=1 --preload-file data")
+	set(CMAKE_EXECUTABLE_SUFFIX ".html")
+endif()
+
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
 file(GLOB SRC src/*.cpp src/jngl/*.cpp