Created
April 15, 2022 17:28
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Rust code coverage script
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| #!/bin/bash | |
| # | |
| # Prerequisites: | |
| # rustup component add llvm-tools-preview | |
| # cargo install rustfilt | |
| # jq | |
| set -euo pipefail | |
| TOOLS_DIR="$(rustc --print sysroot)/lib/rustlib/x86_64-unknown-linux-gnu/bin" | |
| # Generate raw profile data (appears in individual crate directories) | |
| RUSTFLAGS="-C instrument-coverage" LLVM_PROFILE_FILE="project-%m.profraw" cargo test --tests | |
| # Create combined data file | |
| PROFRAW_FILES=$(find . -name "*.profraw") | |
| $TOOLS_DIR/llvm-profdata merge --sparse -o project.profdata $PROFRAW_FILES | |
| rm -f $PROFRAW_FILES | |
| PROFILED_FILES="$( \ | |
| for file in \ | |
| $( \ | |
| RUSTFLAGS="-C instrument-coverage" \ | |
| cargo test --tests --no-run --message-format=json \ | |
| | jq -r "select(.profile.test == true) | .filenames[]" \ | |
| | grep -v dSYM - \ | |
| ); \ | |
| do \ | |
| printf "%s %s " --object=$file; \ | |
| done \ | |
| )" | |
| $TOOLS_DIR/llvm-cov report \ | |
| $PROFILED_FILES \ | |
| --Xdemangler=rustfilt \ | |
| --instr-profile=project.profdata \ | |
| --ignore-filename-regex='/.cargo/registry' | |
| $TOOLS_DIR/llvm-cov show \ | |
| $PROFILED_FILES \ | |
| --Xdemangler=rustfilt \ | |
| --instr-profile=project.profdata \ | |
| --ignore-filename-regex='/.cargo/registry' \ | |
| --show-line-counts-or-regions \ | |
| --show-instantiations \ | |
| --format=html > coverage.html |
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