nushell/crates/nu-std
Darren Schroeder 5314b31b12
update banner command to respect use_ansi_colors (#14684)
# Description

This PR goes along with the recent changes by @cptpiepmatz for
[auto-color](https://github.com/nushell/nushell/pull/14647) and
[evaluation of
auto-color](https://github.com/nushell/nushell/pull/14683) which also
looks at env vars along with config settings to determine when it's
appropriate to show ansi coloring since it's more complicated than just
reading a setting or an env var.


# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
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- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
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- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use toolkit.nu; toolkit test stdlib"` to run the
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> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
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2024-12-27 07:16:53 -06:00
..
src Always load default env/config values (#14249) 2024-11-20 16:15:15 -06:00
std update banner command to respect use_ansi_colors (#14684) 2024-12-27 07:16:53 -06:00
tests Add version info to startup banner (#14625) 2024-12-19 08:38:29 -06:00
Cargo.toml Bump version to 0.101.1 (#14661) 2024-12-24 23:47:00 +01:00
CONTRIBUTING.md Surprising symlink resolution for std path add (#13258) 2024-06-28 18:11:48 -05:00
LICENSE add LICENSE to nu-std (#8803) 2023-04-07 13:39:21 -07:00
README.md Change the usage misnomer to "description" (#13598) 2024-08-22 12:02:08 +02:00
testing.nu Fix silent failure of parsing input output types (#14510) 2024-12-07 09:55:15 -06:00

Welcome to the standard library of `nushell`!

The standard library is a pure-nushell collection of custom commands which provide interactive utilities and building blocks for users writing casual scripts or complex applications.

To see what's here:

> use std
> scope commands | select name description | where name =~ "std "
#┬───────────name────────────┬───────────────────description───────────────────
0│std assert                 │Universal assert command
1│std assert equal           │Assert $left == $right
2│std assert error           │Assert that executing the code generates an error
3│std assert greater         │Assert $left > $right
4│std assert greater or equal│Assert $left >= $right
             ...                                     ...
─┴───────────────────────────┴─────────────────────────────────────────────────

🧰 Using the standard library in the REPL or in scripts

All commands in the standard library must be "imported" into the running environment (the interactive read-execute-print-loop (REPL) or a .nu script) using the use command.

You can choose to import the whole module, but then must refer to individual commands with a std prefix, e.g:

use std

std log debug "Running now"
std assert (1 == 2)

Or you can enumerate the specific commands you want to import and invoke them without the std prefix.

use std ["log debug" assert]

log debug "Running again"
assert (2 == 1)

This is probably the form of import you'll want to add to your env.nu for interactive use.

✏️ contribute to the standard library

You're invited to contribute to the standard library! See CONTRIBUTING.md for details