2023-04-25-nushell_0_79.md

title	author	author_site	author_image	excerpt
Nushell 0.79	The Nu Authors	https://twitter.com/nu_shell	https://www.nushell.sh/blog/images/nu_logo.png	Today, we're releasing version 0.79 of Nu. This release adds a standard library written in nu itself and enhanced IDE support.

Nushell 0.79

Nushell, or Nu for short, is a new shell that takes a modern, structured approach to your command line. It works seamlessly with the data from your filesystem, operating system, and a growing number of file formats to make it easy to build powerful command line pipelines.

Today, we're releasing version 0.79 of Nu. This release adds a standard library written in nu itself and enhanced IDE support.

Where to get it

Nu 0.79 is available as pre-built binaries or from crates.io. If you have Rust installed you can install it using cargo install nu.

NOTE: The optional dataframe functionality is available by cargo install nu --features=dataframe.

As part of this release, we also publish a set of optional plugins you can install and use with Nu. To install, use cargo install nu_plugin_<plugin name>.

Themes of this release / New features

Standard library (@amtoine, @bobhy, @fdncred, @presidento, ...)

This is it. We finally release the standard library with this 0.79! It's been on the mind of the core team of Nushell for some time and it was made real between the two releases.

But first of all... what is the standard library?

The nushell standard library is a collection of nushell scripts that are automatically loaded in the nushell binary and reachable via the use command without any additional setup.

💡 Note some of the commands from the standard library are used without human intervention as part of what we call the prelude.

As said above, the other commands are available with the use command. The goal of this library is, as its name suggests, to provide a standard experience and a standardized set of commands and tools to any Nushell user. In std, one can find things like

• a test framework to write robust Nushell scripts, modules and libraries
• implementation of builtin commands once written in rust
• logging commands with several log levels
• ...

💡 Note yes, you heard right, in the future, the standard library might become a sanctuary for non-time-critical commands that were once written in rust as part of the built-in set of commands!

Right now, we are actively trying to move the help commands from the nushell core implementation to the library.

With this release, the library comes with the following custom commands:

module	description	commands
std assert	a set of commands to write tests	assert, assert equal, assert error, assert greater, assert greater or equal, assert length, assert less, assert less or equal, assert not equal, assert skip, assert str contains
std dirs	a re-implementation of the shells commands	dirs add, dirs drop, dirs next, dirs prev, dirs show
std help	a Nushell implementation of the built-in commands	help, help aliases, help commands, help externs, help modules, help operators
std iter	an extension of built-in commands to iterate over data	iter filter-map, iter find, iter intersperse, iter scan
std log	never miss something in your scripts	log critical, log debug, log error, log info, log warning
xml module	tools to interact with Xml data	xaccess, xinsert, xtype, xupdate

• some other commands live under the std namespace, without any module: clip, path add and run-tests

TL;DR

As there has been quite a lot of contributions already (see the 50 closed PRs at the time i'm writing this :o), i'm just gonna give some hints and links in this release note, leaving the rest to the amazing work of other contributors who wrote parts of the lib and its documents (shout out to @bobhy, @fdncred and @presidento

• the library can be used and tested with

use std   # will load the whole library under the `std` namespace
use std * #   -    -   -    -      -    without the `std` prefix

or use direct imports, such as

use std 'dirs show'

• one can follow the activity of the library in the roadmap
• the library comes with a test framework; see the Testing your Nushell code chapter of the book
• the long term information, changelog and updates shall be found in the Standard library chapter of the Nushell book
• if you are a contributor willing to help out, everything happens in the nu-std crate, especially the CONTRIBUTING.md document which explains all there is to know about "developing with std" in great details.

If, for some reason, you want to load Nushell without the standard library, start nu with the --no-std-lib. This can be the case if you find the startup times much longer than before. We're aiming to improve the loading speed in the future.

enhanced IDE support in our VS code extension (Sophia, fdncred)

Nushell now has a first LSP (Language Server Protocol) implementation with a VSCode integration. If you install the latest version of our VSCode plugin, you'll see hovers, inlays, tooltips, error squigglies and other features. We are still very early in the LSP development, but the extension is already very usable and definitely moves the experience of writing Nu code to another level!

While currently we have only VSCode integration, the server itself is standalone and we welcome projects adding the LSP support to more editors.

atuin now supports Nushell

Thanks to @stevenxxiu you can now use atuin with Nushell. We are happy to see Nushell supported by more projects and we welcome PRs adding more integrations.

Relaxed parsing rules (Sophia)

We listened to your feedback around the syntax changes introduced with 0.78 and decided to revert to the old behavior around the parsing rules for numeric literals as well as the compulsory || for closures.

Removed old alias implementation (kubouch)

While there are still some missing pieces, we removed the old alias implementation. This means that old-alias is no longer available. We decided to remove it to clean up the code. It makes further fixes to aliases easier as you do not need to remember which alias implementation a piece of code belongs to.

There are two notable missing features from the old aliases:

• Missing completions with external completers.
• Most parser keywords (such as source) cannot be aliased but adding support for aliasing them should be possible in most cases.
• Not possible to alias with environment shorthands (e.g., alias foo = FOO=bar spam)
• Some presentation issues, such as the output of which and the alias usage pointing at the aliased call instead of the alias itself.

Changes to default files locations (ito-hiroki)

$nu.config-path and $nu.env-path are now set based on --config and --env-config flags passed to Nushell and also use the path after resolving symlinks. This means that they no longer guarantee pointing at the default Nushell's config directory. To be able to refer to the default config directory, $nu.default-config-dir was added and used in default env.nu to always point NU_LIB_DIRS to the scripts directory under the default config directory.

Related to that, $env.CURRENT_FILE was added to be able to show the currently evaluated file.

Breaking changes

• #8797 old-alias is no longer available
• #8724 str index-of -r now uses ranges
• #8792 config nu and config env now open $nu.config-path and $nu.env-path, respectively.
• #8779 Aliasing math expressions now shows error immediately instead of failing silently and showing a confusing error later.
• #8917 exec inherits Nushell's environment variables
• #8887 NU_LIB_DIRS definition in env.nu changed

Full changelog

Nushell

• sholderbach created Bump to 0.79.1 dev version, and Pin reedline to 0.19.0 release, and Bump version for 0.79.0 release, and Run coverage immediately, and Reenable CI coverage, and Fix span of multibyte short flags, and Move CLI related commands to nu-cli, and Follow up #8758 with a style fix
• hustcer created Add npm installation instruction, and Upgrade to nu v0.78 for binaries release workflow
• rgwood created Tweak run-external signature so command must be a string, and Upgrade open crate to fix WSL bug
• fdncred created use record separator \x1e for include_path, and allow find command to look in specified columns only, and fix reedline breaking changes due to PR562, and fix bug with include_path -I parameter, and allow custom commands to show up in $nu.scope.commands better, and remove debug print bug, and Update issue templates, and limit the ide-check error amount, and change include dirs separator to colon, and make inlays show type instead of shape
• pingiun created Set override locale in toolkit, and Set env in exec command, and Add $env.CURRENT_FILE variable, and Add $nu.current-exe variable, and Add ppid example for ps
• stevenxxiu created fix: set the initial repl cursor pos, fixes #8943
• WindSoilder created using ratatui instead of tui, and rm: enable trash flag on android and ios platrofm, and optimize hash md5 for binary input, and Remove autoprinting of for loop, and Update crossterm version to 0.26, and update command: make $in(in closure body) takes cell path
• sophiajt created Reuse the cached parse results of parsed files, and Hopefully speedup startup, and Allocate less when doing a capture discovery, and Improve hovers, including for custom commands, and Make -I take in a ;-delimited list, and Adds multi-file support to IDE support, and Relax the closure syntax, highlight differently, and Revert numberlike parsing restriction, and Add option to not load std-lib. Default tests to not use std-lib, and Only add the std lib files once, and improve operation mismatch errors, and Fix parser recovery after error, and Refactor to support multiple parse errors
• 1Kinoti created unify the *-BuiltinVar parser errors, and add filter-map command to std iter, and add iter module to standard library, and rename toolkit's set-git-hooks to setup-git-hooks, and use let-else syntax where possible, and allow register to accept a const argument
• presidento created Fix into decimal command category, and std: remove logging example, and Move unit test runner to standard library, and stdlib test runner: implement setup and teardown commands to unit tests, and Stdlib: use default color for info log level, and stdlib: add assert skip command to skip test case
• amtoine created refactor the CONTRIBUTING.md guidelines for nu-std, and stdlib: fix the clip command with integer values, and FEATURE: do not use theme-independent colors in the default configs, and stdlib: make helper modules available in std, and remove the "MODULE NOT FOUND" print from the parser, and stdlib: refactor into a multi-module library, and stdlib: use the loaded library in tests and update README, and stdlib: add completion to help commands, and FEATURE: make the link in the ansi extra usage an ANSI link, and add the standard help to the prelude as std help ..., and FIX: load the library before anything else, and stdlib: make the library a standalone crate, and DEV: make all "comments" real md comments in the PR template
• vaishaag created Fix strange error on unbalanced curly braces, and Correct error description for unknown external commands
• bobhy created std run-tests: Rename --command switch to --test; and likewise in --list output, and Replace #8824: CONTRIBUTING.md for standard library, and Pick up fix in dtparse for nanosec truncation noted at bottom of #8337
• Mehrbod2002 created Apply continue to each
• ito-hiroki created Change NU_LIB_DIRS not to depend on $nu.config-path, and Fix config {nu,env} to open $nu.{config,env}-file
• federicoviscomi created Parser panic for signature with multibyte char for short flag #8821
• nibon7 created Fix process_range on 32-bit platforms
• dependabot[bot] created Bump sys-locale from 0.2.4 to 0.3.0, and Bump winreg from 0.11.0 to 0.50.0, and Bump rstest from 0.16.0 to 0.17.0, and Bump umask from 2.0.0 to 2.1.0, and Bump miette from 5.6.0 to 5.7.0, and Bump tempfile from 3.4.0 to 3.5.0
• MariaSolOs created Add git hooks for formatting and running clippy, and Use pretty_assertions in the root crate, and Allow arguments for the last flag in short flag batch
• stormasm created remove nu_cli crate dependency from nu_std, and add LICENSE to nu-std
• kubouch created Remove old alias implementation, and Remove parser keywords label from commands that do not need it, and Aliasing math expression shows error earlier, and Allow multi-word aliases
• harshalchaudhari35 created fix(nu-command/tests): further remove unnecessary pipeline() and cwd()
• fnordpig created Add regex separators for split row/list/column
• Sygmei created feat: added items command for Records
• amtoine created standard library: implement help commands with $nu
• bobhy created range operator accepts bot..=top as well as bot..top

Extension

• fdncred created update changelog, and update syntax for 0.79.0, and change the : separator to a record separator \x1e, and add folding regions, and rename to match readme, and update readme, and update example generation script and examples, and add a throttle timeout so that we don't update to frequently, and add timing to more server functions, and update vscode launch json so we can see debug messages from client, and update files to model after jakt, and limit the amount of errors returned by ide-check, and respect the setting to enable or disable hints/inlays, and change include dir separator from semicolon to colon, and revert vscodeignore changes, and add include dirs setting to extension, and utilize nushell IDE features with built-in vscode LSP functionality
• glcraft created Add underscore separator in numbers
• sophiajt created Have launch build instead of watch, and Delete tmp file on exit, and Limit buffer calculation to buffer size not text size, and Move runCompiler to be in charge of the script include flag, and Add support for -I call to nushell

Documentation

• hustcer created Refresh command docs for nu v0.79.0, and Add npm installation instruction, and Fix i18n script for nu v0.78, and Update some docs for nu v0.78
• dependabot[bot] created Bump yaml from 2.1.3 to 2.2.2
• Ifthel created Use explicit printing in custom_commands.md, and Improve insert and update examples in working_with_lists.md, and Update dataframe examples, and Fix ranges in str substring examples
• amtoine created add the note about the standard library
• kai-tub created Update standard_library.md
• MariaSolOs created Fix some typos and other nits to the variable documentation
• 1Kinoti created update variable documentation
• rgwood created Mention optional cell path members
• presidento created Dataframes, and Add info about echo, print and log commands to the book, and Update testing chapter
• maxim-uvarov created fixing typo in 2023-04-04-nushell_0_78.md
• D3V1LC0D3R created Update working_with_tables.md to include reject
• Kissaki created Improve misleading text format on note
• sholderbach created Release notes for 0.79.0 release.
• uselesspseudo created Fix old keybding for help menu
• efulleratindeed created Fix syntax error in blog post
• pingiun created Add ppid to ps examples
• SamirTalwar created Update the Direnv recipe to use a block, rather than code:

Nu_Scripts

• fdncred created some cleanup, and update progress meter to work with latest nushell, and update sg.nu to print again, and some fun iterm2 drawing, and update range syntax in str substring usage, and move assets so they're more accessible, and a little cleanup, and fix some quoting bugs that the lsp found
• sholderbach created Include nu-std in the release script
• fj0r created prompt powerline support color theme, and refactor: unified configuration environment variables, and prompt, and upgrade to 0.78: git, ssh, docker, kubernetes
• Darkness9724 created Fix wolframalpha.nu
• RickCogley created Enhance by getting length of symbol string, and Add nupass.nu password generator
• nils-degroot created Added completions for pass
• D3V1LC0D3R created Update nuschiit.nu (used deprecated fetch), and a small query web showcase with unscramble.me
• TuffenDuffen created Fix issue with open in yarn completions
• Hofer-Julian created conda: Add || to closure, and Speeding up activating conda environment
• fnuttens created Add --all aliases for exa, and Add exa aliases
• Kissaki created Fix winget-completions.nu for nushell v0.78 closure syntax change
• Tiggax created Fixed support for env files
• melMass created refactor: ✨

reedline

• sholderbach created Bump version for 0.19 release
• nibon7 created Restore the cursor shape when reedline exits
• stevenxxiu created feat: add current_insertion_point() to return the current insertion point of the input buffer
• WindSoilder created support bracketed paste, and Update crossterm to version 0.26.1
• xiuxiu62 created re-export crossterm::style::Color for custom prompt implementations
• fdncred created Allow history searching via session id