nushell
Performance issue: Prompt command gets ran on every character.
Describe the bug
As the title says, when you set a custom prompt command, like starship, it gets called every time you input another character.
This isn't really noticeable on a local machine with a good CPU, but it really makes it unusable over SSH.
Fish, bash and ZSH work fine with starship on my pretty slow VPS, but Nushell does not, as it calls starship all the time making it take too long.
How to reproduce
- Install starship onto a VPS
- Hook it up for fish and nushell
- Compare the responsiveness over SSH
Expected behavior
Only to run the prompt command once. If it has to redraw it all the time, it can cache the output I guess. This shouldn't be needed though, as redrawing everything atm makes it flicker. Fish handles it well.
Screenshots
No response
Configuration
| key | value |
|---|---|
| version | 0.89.0 |
| branch | |
| commit_hash | |
| build_os | linux-x86_64 |
| build_target | x86_64-unknown-linux-gnu |
| rust_version | rustc 1.75.0 (82e1608df 2023-12-21) (built from a source tarball) |
| cargo_version | cargo 1.75.0 |
| build_time | 1980-01-01 00:00:00 +00:00 |
| build_rust_channel | release |
| allocator | mimalloc |
| features | default, sqlite, trash, which, zip |
| installed_plugins |
Additional context
No response
This is a known issue with reedline that we'd like to get fixed. I think it's also what makes WezTerm unusable on Windows.
