rust test coverage with grcov

rust-coverage.sh

METHOD=${1:-${METHOD:-"A"}}

if [ "$METHOD" == "A" ]
then
    export CARGO_INCREMENTAL=0
    export RUSTFLAGS="-Zprofile -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort"
    export RUSTDOCFLAGS="-Cpanic=abort"
    unset LLVM_PROFILE_FILE
else
    export CARGO_INCREMENTAL=0
    export RUSTFLAGS="-Zinstrument-coverage -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort"
    export RUSTDOCFLAGS="-Cpanic=abort"
    export LLVM_PROFILE_FILE="your_name-%p-%m.profraw" 
fi

cargo clean
cargo build
cargo test

grcov . -s . --binary-path ./target/debug/ -t html --excl-br-line 'assert' --excl-start '#(\[cfg\(test\)\]|\[test\])' --branch --ignore-not-existing --ignore test/ -o ./grcov-coverage/