Docs about lcov

Author: martin4861

test/small_world/.bazelrc

@@ -1,90 +1,5 @@
 common --@rules_swiftnav//cc:enable_bzlmod=true
 
-
 coverage --experimental_generate_llvm_lcov
 coverage --combined_report=lcov
-build:coverage_x86_64_linux --platforms=@rules_swiftnav//platforms:x86_64_linux_llvm20
-
-build:coverage_aarch64_darwin --platforms=@rules_swiftnav//platforms:aarch64_darwin_llvm20
-build:coverage_aarch64_darwin --action_env=BAZEL_USE_LLVM_NATIVE_COVERAGE=0
-
-
-
-# # Overrides our custom toolchain and uses the system
-# build:system --noincompatible_enable_cc_toolchain_resolution
-
-# build:system --action_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN="0"
-
-# build:system --platform_suffix=system
-
-# # build --config=system
-# build --nojava_deps
-# build --define=BAZEL_USE_SYSTEM_ZLIB=1
-# build --spawn_strategy=local
-# build --strategy=Genrule=local
-# build --strategy=CppCompile=local
-# build --strategy=TestRunner=local
-# build --strategy=Javac=local
-# build --strategy=Closure=local
-# build --strategy=GoCompile=local
-# build --strategy=GoLink=local
-# build --strategy=GoTest=local
-# build --strategy=GoVet=local
-# build --strategy=ObjcCompile=local
-# build --strategy=ObjcLink=local
-# build --strategy=SwiftCompile=local
-# build --strategy=Dart=local
-# build --strategy=Worker=local
-# build --strategy=ProtoCompile=local
-# build --strategy=PyCompile=local
-# build --strategy=PyTest=local
-# build --strategy=TypeScriptCompile=local
-# build --strategy=TypeScriptTest=local
-
-# test --spawn_strategy=local
-# test --strategy=TestRunner=local
-
-# coverage --spawn_strategy=local
-# coverage --strategy=TestRunner=local
-# coverage --action_env=COVERAGE_GCOV_PATH="/opt/homebrew/opt/llvm/bin/llvm-profdata" # not needed, part of clang20 toolchain!
-
-# next line does not seem to change anything
-# coverage --action_env=BAZEL_USE_LLVM_NATIVE_COVERAGE=1
-
-# same, same
-# coverage --action_env=GCOV_PREFIX_STRIP=10
-
-# next 4 lines are not possible with clang20!
-# coverage --cxxopt=-mllvm
-# coverage --copt=-mllvm
-# coverage --cxxopt=-system-headers-coverage
-# coverage --copt=-system-headers-coverage
-
-
-# Mac:
-# https://github.com/bazelbuild/bazel/blob/1879fc9dbf9d1989c2f1a1e6d2ec61097fe62233/src/test/shell/bazel/bazel_coverage_cc_test_llvm.sh#L67 ? 
-# bazel coverage --config=coverage_aarch64_darwin //src/base_math:base_math_test --subcommands --experimental_generate_llvm_lcov --combined_report=lcov
-
-#common --action_env=BAZEL_LLVM_COV="external/rules_swiftnav+/cc/toolchains/llvm20/aarch64-darwin/wrappers/llvm-cov"
-#common --action_env=BAZEL_LLVM_PROFDATA="external/rules_swiftnav+/cc/toolchains/llvm20/aarch64-darwin/wrappers/llvm-profdata"
-#common --action_env=BAZEL_USE_LLVM_NATIVE_COVERAGE=1
-#common --repo_env=CC=${clang}
-#common --repo_env=GCOV=${llvm_profdata}
-#common --experimental_generate_llvm_lcov
-
-
-# on ubuntu!
-# 1.
-# bazel coverage --config=coverage_x86_64_linux //src/base_math:base_math_test --subcommands --experimental_generate_llvm_lcov --combined_report=lcov
-# 2.
-# cp "$(bazel info output_path)/_coverage/_coverage_report.dat" cov.dat
-# copy
-# 3. genhtml --output html cov.dat
-
-
-
-# bazel coverage --config=coverage_x86_64_linux //src/old_folder_structure:old_folder_structure_test --subcommands --experimental_generate_llvm_lcov --combined_report=lcov
-# cp "$(bazel info output_path)/_coverage/_coverage_report.dat" cov.dat
-# genhtml --output html cov.dat
-
 

test/small_world/README.md

@@ -2,6 +2,7 @@
 
 on `x86_64 ubuntu`:
 
+lcov:
 ```
 bazel coverage --config=coverage_x86_64_linux //src/base_math:base_math_test