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Merge DEVELOPER_INSTRUCTIONS into CONTRIBUTING

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106
CONTRIBUTING.md
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@ -30,13 +30,81 @@ If you have any questions, feel free to ask them in the issues or on
## Platforms ## Platforms
We take pride in supporting many operating systems and architectures. We take pride in supporting many operating systems and architectures. Any code
you contribute must at least compile without warnings for all platforms in the
CI. However, you can use `#[cfg(...)]` attributes to create platform dependent features.
**Tip:** **Tip:** For Windows, Microsoft provides some images (VMWare, Hyper-V,
For Windows, Microsoft provides some images (VMWare, Hyper-V, VirtualBox and Parallels) VirtualBox and Parallels) for development:
for development:
<https://developer.microsoft.com/windows/downloads/virtual-machines/> <https://developer.microsoft.com/windows/downloads/virtual-machines/>
## Tools
We have an extensive CI that will check your code before it can be merged. This
section explains how to run those checks locally to avoid waiting for the CI.
### pre-commit hooks
A configuration for `pre-commit` is provided in the repository. It allows
automatically checking every git commit you make to ensure it compiles, and
passes `clippy` and `rustfmt` without warnings.
To use the provided hook:
1. [Install `pre-commit`](https://pre-commit.com/#install)
1. Run `pre-commit install` while in the repository directory
Your git commits will then automatically be checked. If a check fails, an error
message will explain why, and your commit will be canceled. You can then make
the suggested changes, and run `git commit ...` again.
### clippy
```shell
cargo clippy --all-targets --all-features
```
The `msrv` key in the clippy configuration file `clippy.toml` is used to disable
lints pertaining to newer features by specifying the minimum supported Rust
version (MSRV).
### rustfmt
```shell
cargo fmt --all
```
### cargo-deny
This project uses [cargo-deny](https://github.com/EmbarkStudios/cargo-deny/) to
detect duplicate dependencies, checks licenses, etc. To run it locally, first
install it and then run with:
```
cargo deny --all-features check all
```
### Markdown linter
We use [markdownlint](https://github.com/DavidAnson/markdownlint) to lint the
Markdown files in the repository.
### Spell checker
We use `cspell` as spell checker for all files in the project. If you are using
VS Code, you can install the
[code spell checker](https://marketplace.visualstudio.com/items?itemName=streetsidesoftware.code-spell-checker)
extension to enable spell checking within your editor. Otherwise, you can
install [cspell](https://cspell.org/) separately.
If you want to make the spell checker ignore a word, you can add
```rust
// spell-checker:ignore word_to_ignore
```
at the top of the file.
## Testing ## Testing
Testing can be done using either Cargo or `make`. Testing can be done using either Cargo or `make`.
@ -225,15 +293,33 @@ uutils: add new utility
gitignore: add temporary files gitignore: add temporary files
``` ```
## cargo-deny ## Code coverage
This project uses [cargo-deny](https://github.com/EmbarkStudios/cargo-deny/) to <!-- spell-checker:ignore (flags) Ccodegen Coverflow Cpanic Zinstrument Zpanic -->
detect duplicate dependencies, checks licenses, etc. To run it locally, first
install it and then run with:
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 RUSTDOCFLAGS="-Cpanic=abort"
cargo build <options...> # e.g., --features feat_os_unix
cargo test <options...> # e.g., --features feat_os_unix test_pathchk
grcov . -s . --binary-path ./target/debug/ -t html --branch --ignore-not-existing --ignore build.rs --excl-br-line "^\s*((debug_)?assert(_eq|_ne)?\#\[derive\()" -o ./target/debug/coverage/
# open target/debug/coverage/index.html in browser
``` ```
cargo deny --all-features check all
``` 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.
## Other implementations ## Other implementations

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DEVELOPER_INSTRUCTIONS.md
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@ -1,68 +0,0 @@
# Documentation
The source of the documentation is available on:
<https://uutils.github.io/dev/coreutils/>
The documentation is updated everyday on this repository:
<https://github.com/uutils/uutils.github.io/>
## Running GNU tests
<!-- spell-checker:ignore gnulib -->
- Check out <https://github.com/coreutils/coreutils> next to your fork as gnu
- Check out <https://github.com/coreutils/gnulib> next to your fork as gnulib
- Rename the checkout of your fork to uutils
At the end you should have uutils, gnu and gnulib checked out next to each other.
- Run `cd uutils && ./util/build-gnu.sh && cd ..` to get everything ready (this may take a while)
- Finally, you can run tests with `bash uutils/util/run-gnu-test.sh <tests>`. Instead of `<tests>` insert the tests you want to run, e.g. `tests/misc/wc-proc.sh`.
## Code Coverage Report Generation
<!-- spell-checker:ignore (flags) Ccodegen Coverflow Cpanic Zinstrument Zpanic -->
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 RUSTDOCFLAGS="-Cpanic=abort"
cargo build <options...> # e.g., --features feat_os_unix
cargo test <options...> # e.g., --features feat_os_unix test_pathchk
grcov . -s . --binary-path ./target/debug/ -t html --branch --ignore-not-existing --ignore build.rs --excl-br-line "^\s*((debug_)?assert(_eq|_ne)?\#\[derive\()" -o ./target/debug/coverage/
# open target/debug/coverage/index.html in browser
```
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.
## pre-commit hooks
A configuration for `pre-commit` is provided in the repository. It allows automatically checking every git commit you make to ensure it compiles, and passes `clippy` and `rustfmt` without warnings.
To use the provided hook:
1. [Install `pre-commit`](https://pre-commit.com/#install)
1. Run `pre-commit install` while in the repository directory
Your git commits will then automatically be checked. If a check fails, an error message will explain why, and your commit will be canceled. You can then make the suggested changes, and run `git commit ...` again.
## Using Clippy
The `msrv` key in the clippy configuration file `clippy.toml` is used to disable lints pertaining to newer features by specifying the minimum supported Rust version (MSRV). However, this key is only supported on `nightly`. To invoke clippy without errors, use `cargo +nightly clippy`. In order to also check tests and non-default crate features, use `cargo +nightly clippy --all-targets --all-features`.
## Markdown linter
We use <https://github.com/DavidAnson/markdownlint> to lint the Markdown files.