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# Description This is an attempt to improve the nushell situation with regard to issue #247. This PR implements: - [X] spawning jobs: `job spawn { do_background_thing }` Jobs will be implemented as threads and not forks, to maintain a consistent behavior between unix and windows. - [X] listing running jobs: `job list` This should allow users to list what background tasks they currently have running. - [X] killing jobs: `job kill <id>` - [X] interupting nushell code in the job's background thread - [X] interrupting the job's currently-running process, if any. Things that should be taken into consideration for implementation: - [X] (unix-only) Handling `TSTP` signals while executing code and turning the current program into a background job, and unfreezing them in foreground `job unfreeze`. - [X] Ensuring processes spawned by background jobs get distinct process groups from the nushell shell itself This PR originally aimed to implement some of the following, but it is probably ideal to be left for another PR (scope creep) - Disowning external process jobs (`job dispatch`) - Inter job communication (`job send/recv`) Roadblocks encountered so far: - Nushell does some weird terminal sequence magics which make so that when a background process or thread prints something to stderr and the prompt is idle, the stderr output ends up showing up weirdly
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.