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2022-06-06Cleanup cfg blocksRyan Zoeller
Remove obsolete references to target_env = wasi, target_os = nacl, target_os = osx, and a typo'd target_os = fushsia that didn't compile when fixed. - target_env = wasi is dead: https://github.com/rust-lang/rust/pull/60117 - target_os = nacl is dead: https://github.com/rust-lang/rust/pull/45041 - target_os = osx is dead, but I can't find a link.
2021-12-11clippy cleanup with the latest nightlyAlan Somers
2021-08-28More rust docsAlan Somers
Switch from allow(missing_docs) to deny(missing_docs), which should gradually help us moving forward. Also, add a few missing docs, such as for sched and aio.
2021-07-07Overhaul Nix's error typesAlan Somers
For many of Nix's consumers it be convenient to easily convert a Nix error into a std::io::Error. That's currently not possible because of the InvalidPath, InvalidUtf8, and UnsupportedOperation types that have no equivalent in std::io::Error. However, very few of Nix's public APIs actually return those unusual errors. So a more useful API would be for Nix's standard error type to implement Into<std::io::Error>. This commit makes Error a simple NewType around Errno. For most functions it's a drop-in replacement. There are only three exceptions: * clearenv now returns a bespoke error type. It was the only Nix function whose error couldn't be cleanly mapped onto an Errno. * sys::signal::signal now returns Error(Errno::ENOTSUP) instead of Error::UnsupportedOperation when the user passes an incompatible argument to `handler`. * When a NixPath exceeds PATH_MAX, it will now return Error(Errno::ENAMETOOLONG) instead of Error::InvalidPath. In the latter two cases there is now some abiguity about whether the error code was generated by Nix or by the OS. But I think the ambiguity is worth it for the sake of being able to implement Into<io::Error>. This commit also introduces Error::Sys() as a migration aid. Previously that as an enum variant. Now it's a function, but it will work in many of the same contexts as the original. Fixes #1155
2020-05-31Convert the crate to edition 2018Alan Somers
2020-02-11Provide clearenv()John Gallagher