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coverage: update DEVELOPMENT.md

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Dorian Peron 2025-04-07 10:18:31 +02:00
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DEVELOPMENT.md
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@ -1,4 +1,4 @@
<!-- spell-checker:ignore (flags) Ccodegen Coverflow Cpanic Zinstrument Zpanic reimplementing toybox RUNTEST CARGOFLAGS nextest prereq autopoint gettext texinfo automake findutils shellenv libexec gnubin toolchains gsed -->
<!-- spell-checker:ignore (flags) Ccodegen Coverflow Cpanic Cinstrument Zpanic reimplementing toybox RUNTEST CARGOFLAGS nextest prereq autopoint gettext texinfo automake findutils shellenv libexec gnubin toolchains gsed -->
# Setting up your local development environment
@ -253,13 +253,11 @@ pkg install coreutils gsed
Code coverage report can be generated using [grcov](https://github.com/mozilla/grcov).
### Using Nightly Rust
To generate [gcov-based](https://github.com/mozilla/grcov#example-how-to-generate-gcda-files-for-a-rust-project) coverage report
```shell
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 RUSTFLAGS="-Cinstrument-coverage -Ccodegen-units=1 -Copt-level=0 -Clink-dead-code -Coverflow-checks=off -Zpanic_abort_tests -Cpanic=abort"
export RUSTDOCFLAGS="-Cpanic=abort"
cargo build <options...> # e.g., --features feat_os_unix
cargo test <options...> # e.g., --features feat_os_unix test_pathchk
@ -269,11 +267,6 @@ grcov . -s . --binary-path ./target/debug/ -t html --branch --ignore-not-existin
if changes are not reflected in the report then run `cargo clean` and run the above commands.
### Using Stable Rust
If you are using stable version of Rust that doesn't enable code coverage instrumentation by default
then add `-Z-Zinstrument-coverage` flag to `RUSTFLAGS` env variable specified above.
## Tips for setting up on Mac
### C Compiler and linker