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# Description / User-Facing Changes Signals are no longer blocked for child processes launched from both interactive and non-interactive mode. The only exception is that `SIGTSTP`, `SIGTTIN`, and `SIGTTOU` remain blocked for child processes launched only from **interactive** mode. This is to help prevent nushell from getting into an unrecoverable state, since we don't support background jobs. Anyways, this fully fixes #9026. # Other Notes - Needs Rust version `>= 1.66` for a fix in `std::process::Command::spawn`, but it looks our current Rust version is way above this. - Uses `sigaction` instead of `signal`, since the behavior of `signal` can apparently differ across systems. Also, the `sigaction` man page says: > The sigaction() function supersedes the signal() function, and should be used in preference. Additionally, using both `sigaction` and `signal` is not recommended. Since we were already using `sigaction` in some places (and possibly some of our dependencies as well), this PR replaces all usages of `signal`. # Tests Might want to wait for #11178 for testing.
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.