# This file contains the build configurations of Skia that we use for testing on the CI. # These allow a short-form reference for our supported combinations of build features. # https://bazel.build/docs/bazelrc#config # # For most build configurations, we will want to set the --cc_output_directory_tag [1] # with a unique identifier per configuration name. # # By default, Bazel's "unique target BuildConfiguration" [2] incorporates the compilation_mode, # the target platform, and some suffixes to avoid Bazel-caused and user-caused conflicts. [3] [4] # For example, a default output directory might look like "k8-fastbuild-ST-6a54c1377847". # Inside this output directory is a subfolder for the target (e.g. executable) name. # # Note that multiple definitions of a config are allowed - in this event, they are added together. # This is handy if we need to comment on why certain settings are necessary. Otherwise, escaping # the trailing newline (and thus having a multi-line definition) is preferred for brevity. # # Notably, the flags that we turn on and off via //bazel/common_config_settings do not affect # the output directory. The output directory is used to store compiled object files (.o files) # and generated dependency files (e.g. the output of clang --write-dependencies [5]), so having # these be overwritten unnecessarily will slow down incremental rebuilds when switching between # building different configurations of the same targets. # # [1] https://bazel.build/reference/command-line-reference#flag--cc_output_directory_tag # [2] https://bazel.build/docs/output_directories#layout-diagram # [3] https://github.com/bazelbuild/bazel/blob/ad37a3748c78e0ee903b56366322c70ab8b22187/CODEBASE.md#the-structure-of-the-output-directory # [4] https://github.com/bazelbuild/bazel/blob/e0e589658463beb9605030b4820dcc97e6a36f48/src/main/java/com/google/devtools/build/lib/analysis/config/OutputDirectories.java#L198-L236 # [5] https://clang.llvm.org/docs/ClangCommandLineReference.html#dependency-file-generation # ============================================================================= # Targets (what to build for) # ============================================================================= # --platforms refers to the target for which we are compiling. By setting the target to be a # platform which has our own custom constraint_setting and constraint_value # (skia_hermetic_toolchain=use_hermetic_toolchain), this causes Bazel to resolve the toolchain # to be our hermetic one because our hermetic toolchains have that same constraint set in their # target_compatible_with list. build:for_linux_x64 --platforms=//bazel/platform:linux_x64_hermetic --cc_output_directory_tag=linux_x64 build:for_linux_x64_with_rbe --config=for_linux_x64 --config=linux_rbe build:for_mac_arm64 --platforms=//bazel/platform:mac_arm64_hermetic --cc_output_directory_tag=mac_arm64 build:for_mac_x64 --platforms=//bazel/platform:mac_x64_hermetic --cc_output_directory_tag=mac_x64 # some aliases using more common lingo build:for_mac_m1 --config=for_mac_arm64 build:for_mac_intel --config=for_mac_x64 # Android configuration for 32-bit ARM (armeabi-v7a ABI). build:for_android_arm32 --platforms=//bazel/platform:android_arm32 --cc_output_directory_tag=android_arm32 build:for_android_arm32_with_rbe --config=for_android_arm32 --config=linux_rbe # Android configuration for 64-bit ARM (arm64-v8a ABI). build:for_android_arm64 --platforms=//bazel/platform:android_arm64 --cc_output_directory_tag=android_arm64 build:for_android_arm64_with_rbe --config=for_android_arm64 --config=linux_rbe # Android device-specific configurations. build:pixel_5 --platforms=//bazel/platform:pixel_5 --cc_output_directory_tag=pixel_5 build:pixel_5_with_rbe --config=pixel_5 --config=linux_rbe build:pixel_7 --platforms=//bazel/platform:pixel_7 --cc_output_directory_tag=pixel_7 build:pixel_7_with_rbe --config=pixel_7 --config=linux_rbe # ============================================================================= # Configurations (what features we want on) # ============================================================================= # These are examples of the syntax to create build configurations. As of May 2022, our # Bazel configurations are still being made. build:release --compilation_mode=opt build:debug --compilation_mode=dbg # See also https://github.com/emscripten-core/emsdk/issues/984 for disabling cc_toolchain_resolution build:canvaskit_full --noincompatible_enable_cc_toolchain_resolution \ --include_decoder=gif_decode_codec --include_decoder=jpeg_decode_codec \ --include_decoder=png_decode_codec --include_decoder=webp_decode_codec \ \ --include_encoder=jpeg_encode_codec --include_encoder=png_encode_codec \ --include_encoder=webp_encode_codec \ \ --with_harfbuzz --with_icu --fontmgr_factory=custom_embedded_fontmgr_factory \ --ck_enable_fonts --ck_enable_embedded_font \ \ --disable_tracing --enable_sksl_tracing \ \ --ck_enable_canvas_polyfill --ck_enable_skp_serialization --ck_enable_skottie \ --ck_enable_runtime_effect --ck_enable_matrix_js build:ck_webgl2 --with_gl_standard=webgl_standard --gpu_backend=gl_backend \ --disable_legacy_shader_context # CPU build needs legacy shader context otherwise SkPerlinNoiseShader does not render build:ck_cpu --enable_sksl --enable_legacy_shader_context build:ck_full_webgl2_release --config=canvaskit_full --config=ck_webgl2 --config=release build:ck_full_webgl2_debug --config=canvaskit_full --config=ck_webgl2 --config=debug build:ck_full_cpu_release --config=canvaskit_full --config=ck_cpu --config=release build:ck_full_cpu_debug --config=canvaskit_full --config=ck_cpu --config=debug # TODO(kjlubick) We should be able to configure testing on Chrome or Firefox with this. build:ck_full_webgl2_release_chrome --config=ck_full_webgl2_release build:ck_full_cpu_release_chrome --config=ck_full_cpu_release # We only want to enforce IWYU on debug builds because we have some things that are only # necessary to include in debug mode (e.g. SkDEBUGCODE), but very rarely something that is # only needed in release mode. Thus our C++ debug includes should be a superset of the # release includes. build:enforce_iwyu --features=skia_enforce_iwyu --cc_output_directory_tag=iwyu \ --compilation_mode=dbg --keep_going \ --with_gl_standard=gl_standard --gpu_backend=gl_backend \ --gpu_backend=vulkan_backend \ --enable_gpu_test_utils --force_cpu_tests \ --include_fontmgr=custom_directory_fontmgr --include_fontmgr=custom_embedded_fontmgr \ --include_fontmgr=custom_empty_fontmgr --fontmgr_factory=custom_directory_fontmgr_factory \ --include_decoder=avif_decode_codec --include_decoder=gif_decode_codec \ --include_decoder=jpeg_decode_codec --include_decoder=jxl_decode_codec \ --include_decoder=png_decode_codec --include_decoder=raw_decode_codec \ --include_decoder=webp_decode_codec \ --include_encoder=jpeg_encode_codec --include_encoder=png_encode_codec \ --include_encoder=webp_encode_codec \ --with_harfbuzz --with_icu \ --enable_sksl_tracing \ --enable_svg_canvas --enable_pdf_backend \ --compile_generated_cpp_files_for_headers build:use_linux_rbe_pool --config=linux_rbe --remote_download_minimal build:cpu_only --cc_output_directory_tag=cpu_tests build:cpu_only_debug --config=cpu --config=debug build:cpu_only_release --config=cpu --config=release build:cpu_only_debug_rbe --config=cpu_only_debug --config=use_linux_rbe_pool build:cpu_only_release_rbe --config=cpu_only_release --config=use_linux_rbe_pool build:gl_ganesh --enable_gpu_test_utils --gpu_backend=gl_backend \ --cc_output_directory_tag=gl_ganesh # We need to have this environment variable set when testing our Ganesh GL backend on Unix, # otherwise, we get "Failed to open X display." and connect make a GL context for testing. build:gl_ganesh --action_env=DISPLAY=:1 build:vulkan_ganesh --enable_gpu_test_utils --gpu_backend=vulkan_backend \ --cc_output_directory_tag=vulkan_ganesh build:dawn_ganesh --enable_gpu_test_utils --gpu_backend=dawn_backend \ --cc_output_directory_tag=dawn_ganesh build:metal_ganesh --enable_gpu_test_utils --gpu_backend=metal_backend \ --cc_output_directory_tag=metal_ganesh # Short-hand aliases build:cpu --config=cpu_only build:gl --config=gl_ganesh build:vk --config=vulkan_ganesh build:dawn --config=dawn_ganesh # Layering check does not work without sandboxing because the system headers are not in the # right spot and so they are not found. build:no_sandbox --spawn_strategy=local --features=-layering_check