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closes#15610 .
# Description
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This PR attempts to improve the performance of `std/log *` by making the
following changes:
1. use explicit piping instead of `reduce` for constructing the log
message
2. constify `log-level`, `log-ansi`, `log-types` etc.
3. use `.` instead of `get` to access `$env` fields
# User-Facing Changes
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helps us keep track of breaking changes. -->
Nothing.
# Tests + Formatting
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# After Submitting
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---------
Co-authored-by: Ben Yang <ben@ya.ng>
Co-authored-by: suimong <suimong@users.noreply.github.com>
# Description
Small, backwards compatible enhancements to the standard library.
# User-Facing Changes
- changed `iter find`, `iter find-index`: Only consume the input stream
up to the first match.
- added `log set-level`: a small convenience command for setting the log
level
- added `$null_device`: `null-device` as a const variable, would allow
conditional sourcing if #13872 is fixed
# Tests + Formatting
- 🟢 toolkit fmt
- 🟢 toolkit clippy
- 🟢 toolkit test
- 🟢 toolkit test stdlib
# After Submitting
N/A
# Description
Uses "normal" module `std/<submodule>/mod.nu` instead of renaming the
files (as requested in #13842).
# User-Facing Changes
No user-facing changes other than in `view files` results. Imports
remain the same after this PR.
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
Also manually confirmed that it does not interfere with nupm, since we
did have a conflict at one point (and it's not possible to test here).
# Performance Tests
## Linux
### Nushell Startup - No config
```nu
bench --pretty -n 200 { <path_to>/nu -c "exit" }
```
| Release | Startup Time |
| --- | --- |
| 0.98.0 | 22ms 730µs 768ns +/- 1ms 515µs 942ns
| This commit | 9ms 312µs 68ns +/- 709µs 378ns
| Yesterday's nightly | 9ms 230µs 953ns +/- 9ms 67µs 689ns
### Nushell Startup - Load full standard library
Measures relative impact of a full `use std *`, which isn't recommended,
but worth tracking.
```nu
bench --pretty -n 200 { <path_to>/nu -c "use std *; exit" }
```
| Release | Startup Time |
| --- | --- |
| 0.98.0 | 23ms 10µs 636ns +/- 1ms 277µs 854ns
| This commit | 26ms 922µs 769ns +/- 562µs 538ns
| Yesterday's nightly | 28ms 133µs 95ns +/- 761µs 943ns
| `deprecated_dirs` removal PR * | 23ms 610µs 333ns +/- 369µs 436ns
\* Current increase is partially due to double-loading `dirs` with
removal warning in older version.
# After Submitting
Still TODO - Update standard library doc
