Lmst

Как управлять миром с помощью Nu

Даже сравнительно простой мир, такой как ArtifactoryMMO , приподносит не мало неожиданностей. Хотя есть много примеров кода для управления этим миром из Javascript и Python, я выбрал более серьезный язык, расчитывая прикрутить туда какие-нибудь интересные алгоритмы машинного обучения. Но все равно слишком часто, по крайней мере при отладке, приходится отдавать отдельные команды и анализировать что получилось вручную. Несмотря на прекрасный REPL в Julia, один из лучших, что мне доводилось использовать, и для отладки своего кода, и просто как калькулятор, здесь это оказалось не очень удобно. Конечно, есть curl и jq, но по эргономичности он тоже не идеален. Не curl-ом единым, удобный HTTP-клиент встроен, например, в PowerShell. Но мне захотелось чего-то нового и прогрессивного, и я решил посмотреть Nu . Эта статья предназначена, чтобы привлечь к этому shell любителей MMO-игр, и заинтересовать MMO-играми пользователей nu-shell, а если повезет, заинтересовать обоими темами тех, кто раньше про них и не знал.

https://habr.com/ru/articles/977422/

#nushell #mmo #api

This week in Nushell #329

https://mander.xyz/post/43655087

@drbrain #nushell rocks.

#freesoftwareadvent day 14

#nushell is ... Another shell for your lovely terminal.
It's not remotely POSIX-compliant. But for that, it allows you to treat every program's output as structured data. Converting from yaml to json is as simple as 'cat file|from yaml|to json' (and even that is made more complicated than need be for the example). Many native commands are reimplemented to return structured data, and the rest can be parsed.

Been using #nushell today to fix something that was too gnarly to do with bash, and go was a too much.

#nushell was just sweet spot.

Nushell Niceties: Tables With Different Themes

A blog by @mrhaki

#dev #softwaredevelopment #Nushell

https://jdriven.com/blog/2025/12/Nushell-Niceties-Tables-With-Different-Themes/

Checking if a string value starts or ends with a given string in #Nushell: https://blog.mrhaki.com/2025/12/nushell-niceties-checking-string-starts.html

#Nushell has a lot of different ways to style tables: https://blog.mrhaki.com/2025/12/nushell-niceties-tables-with-different.html

#AdventOfCode Day 3 in #nushell

Part 1: This Nushell code divides the input into lines, and find the max "joltage" in each line, summing up the totals. The max joltage is found by splitting the line into characters, and each character into and integer, and enumerating this list. The first value is the largest item in the list, but leaving out the last list item. This is done by reversing the list, dropping the first item, then reversing the list back again. The second value is the largest item among the remaining items, that is, from the index of the first value to the end of the list. The list which is to be searched is gotten by dropping all values from 0 to the index of the first value. The function that find the largest value is not a simple max function, because the list is enumerated. So, the special max function uses a reduce or fold operation, which compares adjacent items manually, and sets the largest index and its value in the accumulator.

Part 2: This problem is more complex than the first part, because now the "joltage" is made up out of 12 digits, not just 2. So, instead of finding each digit manually (although this is how I prototyped the algorithm) I use a reduce or fold operation on the sequence of digits counting down from 12 to 1. Each fold iteration then finds the largest digit in the line, in the range from the index in the accumulator (which is the index of the previous largest digit) to the length of the line minus the value of the sequence which counts down from 12. It then stores the index of this largest digit in the accumulator, and concatenates the digit onto the value field in the accumulator.

Nushell 0.109.1

https://mander.xyz/post/42916449

#AdventOfCode Day 2 in #nushell
Unoptimised and runs quite slowly, but I've had worse so ...

Part 1: This code takes the input string, splits it into rows and "from" and "to" columns, and casts the strings to integers. Then, in parallel, the sequence of integers from "from" to "to" is filtered to only keep those numbers that are even (so they can be split cleanly in half) and then for which each of the two halves are equal. The latter check uses a function to split each number in half by taking a substring from 0 to the middle (which is the length integer divided by 2) and the substring from the middle to the end.

Part 2: This code parses the input similarly to Part 1, but only checks if there are repeats in each number. This check divides the number (as a string) into chunks of varying width, from width 1 to half of the length of the string. For each chunked number, a function checks if all chunks are equal. This check is a reduce or fold function, which accumulates by making sure each item is equal to the previous. In hindsight, a window function may have been simpler.

#AdventOfCode Day 1 in #nushell

Part 1: A nushell function which reads a file, splits it into lines, then performs a fold or reduce on the lines. Starting with a sum of 50 and a zero count of 0, each line is split into an operation (L or R) and a value. The value is added or subtracted from the sum depending on the operation, and mod 100 is taken of the result, giving the new sum. Then, the number of zeroes is calculated by adding 1 to the old zeroes if the new sum is 0. The sum and zeroes are returned in the accumulator of the reduce. Lastly, the zeroes field of the accumulator is returned.

Part 2: This nushell code is similar to that in the previous screenshot, but, this time, mod 100 is not immediately done on the sum. Instead, the "raw" sum is calculated by only doing the "operation" on the accumulated sum. The additional zeroes value is then calculated by integer dividing the absolute value of the raw sum by 100, and adding an extra 1 if the raw sum is less than 0 and the starting sum was not 0.

This week in Nushell #327

https://mander.xyz/post/42720497

Amazing Nushell W.
Now I will not be opening regexr.com every time I need a somewhat complex regexp.

https://www.nushell.sh/blog/2025-11-29-nushell_v0_109_0.html#add-explore-regex-command-toc

#nushell #shell #terminal #linux #regex

#Nushell 0.109.0

“Today, we're releasing version 0.109.0 of Nu. This release adds the option to use regex in the explore command and a bunch of bug fixes and other small tweaks.”
https://www.nushell.sh/blog/2025-11-29-nushell_v0_109_0.html

- я не понимаю, как готовить рабочие пространства rust, а именно, как без ручной работы и строения велосипедов указать для установки все имеющиеся бинарные крейты. И не я один, [по-видимому](https://github.com/rust-lang/cargo/issues/7124).
- запускаем `cargo build --release`, видим в `target/release/` кучу странных файлов `.d`, ленимся искать среди них что-то полезное и велосипедим команду на #nushell
```nu
ls --long | where type == file | where { |f| ($f.mode | str substring 2..2) == "x" } | select name
```
После вручную копируем в `~/.cargo/bin/` то, назначение чего примерно понимаем.
- или же смотрим в `pacman -Fl wezterm`, какие бинарники входят в комплект, и вручную запускаем отдельные `cargo install --path wezterm` и `cargo install --path wezterm-mux-server`
- при попытке запуска `wezterm connect SSHMUX:termux` оно ругается на несоответствие версий, поэтому на arch тоже собираем из git

Ну и ладно, я могу и сам пошерстить. Только я не буду держать всё в голове либо в неструктурированных заметках, как делал это раньше, я буду собирать структурированные данные! В таблички я не умею и учиться не хочу (много кнопок, фу), поэтому буду использовать #kdl и тыкать #nushell.

Nushell Niceties: Summon Ellie The Nushell Mascot

A blog by @mrhaki

#dev #softwaredevelopment #Nushell #NushellNiceties

https://jdriven.com/blog/2025/11/Nushell-Niceties-Summon-Ellie-The-Nushell-Mascot/

Nushell Niceties: Getting Column And Key Names #Nushell #Nushell Niceties

A blog by mrhaki

#JDriven #dev #softwaredevelopment

https://jdriven.com/blog/2025/11/Nushell-Niceties-Getting-Column-And-Key-Names/

Nushell Niceties: Create Query Parameters For URL

The build-in HTTP client in Nushell can be used to interact with REST APIs and websites. If the URL you want to invoke has query parameters than you can use the url build-query command.

A blog by @mrhaki

https://jdriven.com/blog/2025/11/Nushell-Niceties-Create-Query-Parameters-For-URL/

#JDriven #Nushell #dev #softwaredevelopment

#nushell

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