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mirror of https://github.com/nushell/nushell.git synced 2025-04-16 09:18:21 +02:00
nushell/crates/nu-command/src/core_commands
WindSoilder b662c2eb96
Make external command substitution works friendly(like fish shell, trailing ending newlines) ()
# Description

As title, when execute external sub command, auto-trimming end
new-lines, like how fish shell does.

And if the command is executed directly like: `cat tmp`, the result
won't change.

Fixes: 
Fixes: 


Note that although nushell works correctly by directly replace output of
external command to variable(or other places like string interpolation),
it's not friendly to user, and users almost want to use `str trim` to
trim trailing newline, I think that's why fish shell do this
automatically.

If the pr is ok, as a result, no more `str trim -r` is required when
user is writing scripts which using external commands.

# User-Facing Changes
Before:
<img width="523" alt="img"
src="https://user-images.githubusercontent.com/22256154/202468810-86b04dbb-c147-459a-96a5-e0095eeaab3d.png">

After:
<img width="505" alt="img"
src="https://user-images.githubusercontent.com/22256154/202468599-7b537488-3d6b-458e-9d75-d85780826db0.png">


# 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
fmt --all` applies these changes)
- `cargo clippy --workspace --features=extra -- -D warnings -D
clippy::unwrap_used -A clippy::needless_collect` to check that you're
using the standard code style
- `cargo test --workspace --features=extra` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2022-11-23 16:51:57 +13:00
..
overlay add signature information when get help on one command () 2022-11-20 07:22:42 -06:00
alias.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
ast.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
commandline.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
debug.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
def_env.rs Split blocks and closures () 2022-11-10 21:21:49 +13:00
def.rs Split blocks and closures () 2022-11-10 21:21:49 +13:00
describe.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
do_.rs Make external command substitution works friendly(like fish shell, trailing ending newlines) () 2022-11-23 16:51:57 +13:00
echo.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
error_make.rs Test command names and search terms for redundancy () 2022-08-24 11:16:47 +02:00
export_alias.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
export_def_env.rs Split blocks and closures () 2022-11-10 21:21:49 +13:00
export_def.rs Split blocks and closures () 2022-11-10 21:21:49 +13:00
export_extern.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
export_use.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
export.rs add signature information when get help on one command () 2022-11-20 07:22:42 -06:00
extern_.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
for_.rs Convert 'for' to a statement () 2022-11-11 09:05:34 +13:00
help.rs add signature information when get help on one command () 2022-11-20 07:22:42 -06:00
hide_env.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
hide.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
if_.rs Split blocks and closures () 2022-11-10 21:21:49 +13:00
ignore.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
let_.rs Fix command_type classification () 2022-11-09 19:09:33 -08:00
metadata.rs to html --list now returns a table () 2022-11-15 11:12:56 -06:00
mod.rs Add support for while loops () 2022-11-12 07:21:45 +13:00
module.rs Split blocks and closures () 2022-11-10 21:21:49 +13:00
mut_.rs Limited mutable variables () 2022-11-11 19:51:08 +13:00
register.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
use_.rs Declare input and output types of commands () 2022-11-10 10:55:05 +13:00
version.rs Feature cleanup () 2022-11-22 16:58:11 -08:00
while_.rs Fix while ctrlc behavior () 2022-11-22 15:47:12 +01:00