# Release Notes Excerpt
* Hooks now default to an empty value of the proper type (e.g., `[]` or
`{}`) when not otherwise specified
# Description
```nushell
# Start with no config
nu -n
# Populate with defaults
$env.config = {}
$env.config.hooks
```
* Before: All hooks other than `display_output` were set to `null`.
Attempting to append a hook using `++=` would fail unless it had already
been assigned.
* After:
* `pre_prompt`, `pre_execution`, and `command_not_found` are set to
empty lists. This allows the user to simply append new hooks using
`++=`.
* `env_change` is set to an empty record. This allows the user to add
new hooks using `merge`, although a "helper" command would still be
useful (TODO: stdlib).
Also fixed a typo in an error message.
# User-Facing Changes
There shouldn't be any breaking changes since (before) there were no
guarantees of the hook's value/type. Previously, users would have to
check for `null` and `default` to an empty list before appending. Any
user-strategies for dealing with the problem should continue to work
after this change.
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
Note that, for reasons I cannot ascertain, this PR appears to have
*fixed* the `command_not_found_error_recognizes_non_executable_file`
test that was previously broken by #12953. That PR essentially rewrote
the test to match the new behavior, but it no longer tested what it was
intended to test.
Now, the test is working again as designed (and as it works in the
REPL).
# After Submitting
This will be covered in the Configuration update for #14249. This PR
will simplify several examples in the doc.
# Description
Removes the `NU_DISABLE_IR` option and some code related to evaluating
blocks with the AST
evaluator.
Does not entirely remove the AST evaluator yet. We still have some
dependencies on expression
evaluation in a few minor places which will take a little bit of effort
to fix.
Also changes `debug profile` to always include instructions, because the
output is a little
confusing otherwise, and removes the different options for
instructions/exprs.
# User-Facing Changes
- `NU_DISABLE_IR` no longer has any effect, and is removed. There is no
way to use the AST
evaluator.
- `debug profile` no longer has `--exprs`, `--instructions` options.
- `debug profile` lists `pc` and `instruction` columns by default now.
# Tests + Formatting
Eval tests fixed to only use IR.
# After Submitting
- [ ] release notes
- [ ] finish removing AST evaluator, come up with solutions for the
expression evaluation.
# Description
Fixes#14294 - Turned out to be a whole lot easier than I expected, but
please double-check me on this, since it's an area I haven't been in
before.
# User-Facing Changes
Allow date to be added to a duration type.
# Tests + Formatting
Tests added:
* Duration + Date is allowed
* Duration - Date is not allowed
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# Description
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Bump version to `0.100.0`
# User-Facing Changes
The new release `v0.100.0` is coming...
# Description
Turns out there are duplicate conversion functions: `as_i64` and
`as_f64`. In most cases, these can be replaced with `as_int` and
`as_float`, respectively.
# Description
Dividing two ints can currently return either an int or a float. Not
having a single return type for an operation between two types seems
problematic. Additionally, the type signature for division says that
dividing two ints returns only an int which does not match the current
implementation (it can also return a float). This PR changes division
between almost all types to return a float (except for `filesize /
number` or `duration / number`, since there are no float representations
for these types).
Currently, floor division between certain types is not implemented even
though the type signature allows it. Also, the current implementation of
floor division uses a combination of clamping and flooring rather than
simply performing floor division which this PR fixes. Additionally, the
signature was changed so that `int // float`, `float // int`, and `float
// float` now return float instead of int. This matches the automatic
float promotion in the rest of the operators (as well as how Python does
floor division which I think is the original inspiration).
Since regular division has always returned fractional values (and now
returns a float to reflect that), `mod` is now defined in terms of floor
division. That is, `D // d = q`, `D mod d = r`, and `D = d * q + r `.
This is just like the `%` operator in Python, which is also based off
floor division (at least for ints and floats). Additionally,
implementations missing from `mod`'s current type signature have been
added (`duration mod int` and `duration mod float`).
This PR also overhauls the overflow checking and errors for div, mod,
and floor div. If an operation overflows, it will now cause an error.
# User-Facing Changes
- Div now returns a float in most cases.
- Floor division now actually does floor division.
- Floor division now does automatic float promotion, returning a float
in more instances.
- Floor division now actually allows division with filesize and
durations as its type signature claimed.
- Mod is now defined and implemented in terms of floor division rather
than truncating division.
- Mod now actually allows filesize and durations as its type signature
claimed.
- Div, mod, and floor div now all have proper overflow checks.
## Examples
When the divisor and the dividend have the same sign, the quotient and
remainder will be the same as before. (Except that this PR will give
more accurate results, since it does not do an intermediate float
conversion). If the signs of the divisor and dividend are different,
then the results will be different, or rather actually correct.
Before:
```nu
let q = 8 // -3 # -3
let r = 8 mod -3 # 2
8 == $q * -3 + $r # false
```
After:
```nu
let q = 8 // -3 # -3
let r = 8 mod -3 # -1
8 == $q * -3 + $r # true
```
Before:
```nu
let q = -8 // 3 # -3
let r = -8 mod 3 # -2
-8 == $q * 3 + $r # false
```
After:
```nu
let q = -8 // 3 # -3
let r = -8 mod 3 # 1
-8 == $q * 3 + $r # true
```
# Tests + Formatting
Added a few tests.
# After Submitting
Probably update the docs.
Fixes#14145
# User-Facing Changes
An empty rest match would be `null` previously. Now it will be an empty
list.
This is a breaking change for any scripts relying on the old behavior.
Example script:
```nu
match [1] {
[_ ..$rest] => {
match $rest {
null => { "old" }
[] => { "new" }
}
}
}
```
This expression would evaluate to "old" on current nu versions and "new"
with this patch.
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# Description
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Fixes: #13362
This PR fixes the `Display` impl for `CellPath`, as laid out in #13362
and #14090:
```nushell
> $.0."0"
$.0."0"
> $."foo.bar".baz
$."foo.bar".baz
```
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Cell-paths are now printed using the same `$.` notation that is used to
create them, and ambiguous column names are properly quoted.
# Tests + Formatting
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> **Note**
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> use toolkit.nu # or use an `env_change` hook to activate it
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> toolkit check pr
> ```
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# After Submitting
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# Description
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This PR makes the `Display` implementation for `CellPath` show a `?`
suffix on every optional entry, which makes the output consistent with
the language syntax.
Before this PR, the printing of cell paths was confusing, e.g. `$.x` and
`$.x?` were both printed as `x`. Now, the second one is printed as `x?`.
# User-Facing Changes
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The formatting of cell paths now matches the syntax used to create them,
reducing confusion.
# Tests + Formatting
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All tests pass, including `stdlib` tests.
# After Submitting
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# Description
This PR adds an indicator when listing subcommands. That indicator tells
whether the command is a plugin, alias, or custom_command.
I changed some of the API to make this work a little easier, namely
`get_signatures()` is now `get_signatures_and_declids()`. It was used in
only one other place (run-external), so I thought it was fine to change
it.
There is a long-standing issue with aliases where they reference the
command name instead of the alias name. This PR doesn't fix that bug.
Example.
```nushell
❯ alias "str fill" = str wrap
```
```nushell
❯ str
... other stuff
Subcommands:
str wrap (alias) - Alias for `str wrap`
str wrap (plugin) - Wrap text passed into pipeline.
```
# User-Facing Changes
Slightly different output of subcommands.
# Description
This PR closes#14137 and allows the display hook to be set on byte
streams. So, with a hook like this below.
```nushell
display_output: {
metadata access {|meta| match $meta.content_type? {
"application/x-nuscript" | "application/x-nuon" | "text/x-nushell" => { nu-highlight },
"application/json" => { ^bat --language=json --color=always --style=plain --paging=never },
_ => {},
}
} | table
}
```
You could type `open toolkit.nu` and the text of toolkit.nu would be
highlighted by nu-highlight. This PR also changes the way content-type
is assigned with `open`. Previously it would only assign it if `--raw`
was specified.
Lastly, it changes the `is_external()` function to only say
`ByteStreamSource::Child`'s are external instead of both Child and
`ByteStreamSource::File`. Again, this was to allow the hook to function
properly. I'm not sure what negative ramifications changing
`is_external()` could have, but there may be some?
# User-Facing Changes
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# Tests + Formatting
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> **Note**
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> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
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# After Submitting
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# Description
This PR adds the `name` column back to keybindings.
This may be considered a hack since the reedline keybinding has no spot
for name, but it seems to work.
# Description
This PR changes the range contains logic to take the step into account.
```nushell
# before
2 in 1..3.. # true
# now
2 in 1..3.. # false
```
---
I encountered another issue while adding tests. Due to floating point
precision, `2.1 in 1..1.1..3` will return `false`. The floating point
error is even bigger than `f64::EPSILON` (`0.09999999999999876` vs
`2.220446049250313e-16`). This issue disappears with bigger numbers.
I tried a different algorithm (checking if the estimated number of steps
is close enough to any integer) but the results are still pretty bad:
```rust
let n_steps = (value - self.start) / self.step; // 14.999999999999988
(n_steps - n_steps.round()).abs() < f64::EPSILON // returns false
```
Maybe it can be shipped like this, the REPL already has floating point
errors (`1.1 - 1` returns `0.10000000000000009`). Or maybe there's a way
to fix this that I didn't think of. I'm open to ideas! But in any case
performing this kind of checks on a range of floats seems more niche
than doing it on a range of ints.
# User-Facing Changes
Code that depended on this behavior to check if a number is between
`start` and `end` will potentially return a different value.
# Tests + Formatting
# After Submitting
# Description
This PR adds a couple more options for dealing with try/catch errors. It
adds a `json` version of the error and a `rendered` version of the
error. It also respects the error_style configuration point.
# User-Facing Changes
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# Tests + Formatting
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# After Submitting
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# Description
This PR adds `like` as a synonym for `=~` and `not-like` as a synonym
for `!~`. This is mainly a quality-of-life change to help those people
who think in sql.
closes#13261
# User-Facing Changes
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# Tests + Formatting
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tests for the standard library
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> ```
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# After Submitting
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# Description
Fixes: #13967
The key changes lays in `nu-protocol/src/module.rs`, when resolving
import pattern, nushell only needs to bring `$module` with a record
value if it defines any constants.
# User-Facing Changes
```nushell
module spam {}
use spam
```
Will no longer create a `$spam` variable with an empty record.
# Tests + Formatting
Adjusted some tests and added some tests.
# Description
This PR adds a couple more options for dealing with try/catch errors. It
adds a `json` version of the error and a `rendered` version of the
error. It also respects the error_style configuration point.
# User-Facing Changes
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helps us keep track of breaking changes. -->
# Tests + Formatting
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mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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tests for the standard library
> **Note**
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> ```
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# After Submitting
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# Description
This PR adds `like` as a synonym for `=~` and `not-like` as a synonym
for `!~`. This is mainly a quality-of-life change to help those people
who think in sql.
closes#13261
# User-Facing Changes
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helps us keep track of breaking changes. -->
# Tests + Formatting
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sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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tests for the standard library
> **Note**
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> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
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> ```
-->
# After Submitting
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# Description
Fixes: #13967
The key changes lays in `nu-protocol/src/module.rs`, when resolving
import pattern, nushell only needs to bring `$module` with a record
value if it defines any constants.
# User-Facing Changes
```nushell
module spam {}
use spam
```
Will no longer create a `$spam` variable with an empty record.
# Tests + Formatting
Adjusted some tests and added some tests.
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# Description
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# User-Facing Changes
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# Tests + Formatting
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sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
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tests for the standard library
> **Note**
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automatically
> toolkit check pr
> ```
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# After Submitting
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The idea comes from @amtoine, I think it would be good to keey
`display_error.exit_code` same value, if user is using default config or
using no config file at all.
# Description
Fixes#13991. This was done by more clearly separating the case when a
pipeline is drained vs when it is being written (to a file).
I also added an `OutDest::Print` case which might not be strictly
necessary, but is a helpful addition.
# User-Facing Changes
Bug fix.
# Tests + Formatting
Added a test.
# After Submitting
There are still a few redirection bugs that I found, but they require
larger code changes, so I'll leave them until after the release.
# Description
@Yethal discovered that `FooterMode::Auto` in the config as
`$env.config.footer_mode = auto` did not work. This PR attempts to fix
that problem by implementing the auto algorithm that was already
supposed to work.
# User-Facing Changes
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# Tests + Formatting
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tests for the standard library
> **Note**
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> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
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# After Submitting
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# Description
This PR standardizes updates to the config through a new
`UpdateFromValue` trait. For now, this trait is private in case we need
to make changes to it.
Note that this PR adds some additional `ShellError` cases to create
standard error messages for config errors. A follow-up PR will move
usages of the old error cases to these new ones. This PR also uses
`Type::custom` in lots of places (e.g., for string enums). Not sure if
this is something we want to encourage.
# User-Facing Changes
Should be none.
# Description
Currently there is a bit of chaos regarding construction of history file
paths. Various pieces of code across a number of crates reimplement the
same/similar logic:
- There is `get_history_path`, but it requires a directory parameter (it
really just joins it with a file name).
- Some places use a const for the directory parameter, others use a
string literal - in all cases the value seems to be `"nushell"`.
- Some places assume the `"nushell"` value, other plumb it down from
close to the top of the call stack.
- Some places use a constant for history file names while others assume
it.
This PR tries to make it so that the history/config path format is
defined in a single places and so dependencies on it are easier to
follow:
- It removes `get_history_path` and adds a `file_path` method to
`HistoryConfig` instead (an extra motivation being, this is a convenient
place that can be used from all creates that need a history file path)
- Adds a `nu_config_dir` function that returns the nushell configuration
directory.
- Updates existing code to rely on the above, effectively removing
duplicate uses of `"nushell"` and `NUSHELL_FOLDER` and assumptions about
file names associated with different history formats
# User-Facing Changes
None
# Description
Closes#12535
Implements sort-by functionality of #8322
Fixes sort-by part of #8667
This PR does two main things: add a new cell path and closure parameter
to `sort-by`, and attempt to make Nushell's sorting behavior
well-defined.
## `sort-by` features
The `columns` parameter is replaced with a `comparator` parameter, which
can be a cell path or a closure. Examples are from docs PR.
1. Cell paths
The basic interactive usage of `sort-by` is the same. For example, `ls |
sort-by modified` still works the same as before. It is not quite a
drop-in replacement, see [behavior changes](#behavior-changes).
Here's an example of how the cell path comparator might be useful:
```nu
> let cities = [
{name: 'New York', info: { established: 1624, population: 18_819_000 } }
{name: 'Kyoto', info: { established: 794, population: 37_468_000 } }
{name: 'São Paulo', info: { established: 1554, population: 21_650_000 }
}
]
> $cities | sort-by info.established
╭───┬───────────┬────────────────────────────╮
│ # │ name │ info │
├───┼───────────┼────────────────────────────┤
│ 0 │ Kyoto │ ╭─────────────┬──────────╮ │
│ │ │ │ established │ 794 │ │
│ │ │ │ population │ 37468000 │ │
│ │ │ ╰─────────────┴──────────╯ │
│ 1 │ São Paulo │ ╭─────────────┬──────────╮ │
│ │ │ │ established │ 1554 │ │
│ │ │ │ population │ 21650000 │ │
│ │ │ ╰─────────────┴──────────╯ │
│ 2 │ New York │ ╭─────────────┬──────────╮ │
│ │ │ │ established │ 1624 │ │
│ │ │ │ population │ 18819000 │ │
│ │ │ ╰─────────────┴──────────╯ │
╰───┴───────────┴────────────────────────────╯
```
2. Key closures
You can supply a closure which will transform each value into a sorting
key (without changing the underlying data). Here's an example of a key
closure, where we want to sort a list of assignments by their average
grade:
```nu
> let assignments = [
{name: 'Homework 1', grades: [97 89 86 92 89] }
{name: 'Homework 2', grades: [91 100 60 82 91] }
{name: 'Exam 1', grades: [78 88 78 53 90] }
{name: 'Project', grades: [92 81 82 84 83] }
]
> $assignments | sort-by { get grades | math avg }
╭───┬────────────┬───────────────────────╮
│ # │ name │ grades │
├───┼────────────┼───────────────────────┤
│ 0 │ Exam 1 │ [78, 88, 78, 53, 90] │
│ 1 │ Project │ [92, 81, 82, 84, 83] │
│ 2 │ Homework 2 │ [91, 100, 60, 82, 91] │
│ 3 │ Homework 1 │ [97, 89, 86, 92, 89] │
╰───┴────────────┴───────────────────────╯
```
3. Custom sort closure
The `--custom`, or `-c`, flag will tell `sort-by` to interpret closures
as custom sort closures. A custom sort closure has two parameters, and
returns a boolean. The closure should return `true` if the first
parameter comes _before_ the second parameter in the sort order.
For a simple example, we could rewrite a cell path sort as a custom sort
(see
[here](https://github.com/nushell/nushell.github.io/pull/1568/files#diff-a7a233e66a361d8665caf3887eb71d4288000001f401670c72b95cc23a948e86R231)
for a more complex example):
```nu
> ls | sort-by -c {|a, b| $a.size < $b.size }
╭───┬─────────────────────┬──────┬──────────┬────────────────╮
│ # │ name │ type │ size │ modified │
├───┼─────────────────────┼──────┼──────────┼────────────────┤
│ 0 │ my-secret-plans.txt │ file │ 100 B │ 10 minutes ago │
│ 1 │ shopping_list.txt │ file │ 100 B │ 2 months ago │
│ 2 │ myscript.nu │ file │ 1.1 KiB │ 2 weeks ago │
│ 3 │ bigfile.img │ file │ 10.0 MiB │ 3 weeks ago │
╰───┴─────────────────────┴──────┴──────────┴────────────────╯
```
## Making sort more consistent
I think it's important for something as essential as `sort` to have
well-defined semantics. This PR contains some changes to try to make the
behavior of `sort` and `sort-by` consistent. In addition, after working
with the internals of sorting code, I have a much deeper understanding
of all of the edge cases. Here is my attempt to try to better define
some of the semantics of sorting (if you are just interested in changes,
skip to "User-Facing changes")
- `sort`, `sort -v`, and `sort-by` now all work the same. Each
individual sort implementation has been refactored into two functions in
`sort_utils.rs`: `sort`, and `sort_by`. These can also be used in other
parts of Nushell where values need to be sorted.
- `sort` and `sort-by` used to handle `-i` and `-n` differently.
- `sort -n` would consider all values which can't be coerced into a
string to be equal
- `sort-by -i` and `sort-by -n` would only work if all values were
strings
- In this PR, insensitive sort only affects comparison between strings,
and natural sort only applies to numbers and strings (see below).
- (not a change) Before and after this PR, `sort` and `sort-by` support
sorting mixed types. There was a lot of discussion about potentially
making `sort` and `sort-by` only work on lists of homogeneous types, but
the general consensus was that `sort` should not error just because its
input contains incompatible types.
- In order to try to make working with data containing `null` values
easier, I changed the PartialOrd order to sort `Nothing` values to the
end of a list, regardless of what other types the list contains. Before,
`null` would be sorted before `Binary`, `CellPath`, and `Custom` values.
- (not a change) When sorted, lists of mixed types will contain sorted
values of each type in order, for the most part
- (not a change) For example, `[0x[1] (date now) "a" ("yesterday" | into
datetime) "b" 0x[0]]` will be sorted as `["a", "b", a day ago, now, [0],
[1]]`, where sorted strings appear first, then sorted datetimes, etc.
- (not a change) The exception to this is `Int`s and `Float`s, which
will intermix, `Strings` and `Glob`s, which will intermix, and `None` as
described above. Additionally, natural sort will intermix strings with
ints and floats (see below).
- Natural sort no longer coerce all inputs to strings.
- I did originally make natural only apply to strings, but @fdncred
pointed out that the previous behavior also allowed you to sort numeric
strings with numbers. This seems like a useful feature if we are trying
to support sorting with mixed types, so I settled on coercing only
numbers (int, float). This can be reverted if people don't like it.
- Here is an example of this behavior in action, which is the same
before and after this PR:
```nushell
$ [1 "4" 3 "2"] | sort --natural
╭───┬───╮
│ 0 │ 1 │
│ 1 │ 2 │
│ 2 │ 3 │
│ 3 │ 4 │
╰───┴───╯
```
# User-Facing Changes
## New features
- Replaces the `columns` string parameter of `sort-by` with a cell path
or a closure.
- The cell path parameter works exactly as you would expect
- By default, the `closure` parameter acts as a "key sort"; that is,
each element is transformed by the closure into a sorting key
- With the `--custom` (`-c`) parameter, you can define a comparison
function for completely custom sorting order.
## Behavior changes
<details>
<summary><code>sort -v</code> does not coerce record values to
strings</summary>
This was a bit of a surprising behavior, and is now unified with the
behavior of `sort` and `sort-by`. Here's an example where you can
observe the values being implicitly coerced into strings for sorting, as
they are sorted like strings rather than numbers:
Old behavior:
```nushell
$ {foo: 9 bar: 10} | sort -v
╭─────┬────╮
│ bar │ 10 │
│ foo │ 9 │
╰─────┴────╯
```
New behavior:
```nushell
$ {foo: 9 bar: 10} | sort -v
╭─────┬────╮
│ foo │ 9 │
│ bar │ 10 │
╰─────┴────╯
```
</details>
<details>
<summary>Changed <code>sort-by</code> parameters from
<code>string</code> to <code>cell-path</code> or <code>closure</code>.
Typical interactive usage is the same as before, but if passing a
variable to <code>sort-by</code> it must be a cell path (or closure),
not a string</summary>
Old behavior:
```nushell
$ let sort = "modified"
$ ls | sort-by $sort
╭───┬──────┬──────┬──────┬────────────────╮
│ # │ name │ type │ size │ modified │
├───┼──────┼──────┼──────┼────────────────┤
│ 0 │ foo │ file │ 0 B │ 10 hours ago │
│ 1 │ bar │ file │ 0 B │ 35 seconds ago │
╰───┴──────┴──────┴──────┴────────────────╯
```
New behavior:
```nushell
$ let sort = "modified"
$ ls | sort-by $sort
Error: nu:🐚:type_mismatch
× Type mismatch.
╭─[entry #10:1:14]
1 │ ls | sort-by $sort
· ──┬──
· ╰── Cannot sort using a value which is not a cell path or closure
╰────
$ let sort = $."modified"
$ ls | sort-by $sort
╭───┬──────┬──────┬──────┬───────────────╮
│ # │ name │ type │ size │ modified │
├───┼──────┼──────┼──────┼───────────────┤
│ 0 │ foo │ file │ 0 B │ 10 hours ago │
│ 1 │ bar │ file │ 0 B │ 2 minutes ago │
╰───┴──────┴──────┴──────┴───────────────╯
```
</details>
<details>
<summary>Insensitve and natural sorting behavior reworked</summary>
Previously, the `-i` and `-n` worked differently for `sort` and
`sort-by` (see "Making sort more consistent"). Here are examples of how
these options result in different sorts now:
1. `sort -n`
- Old behavior (types other than numbers, strings, dates, and binary
sorted incorrectly)
```nushell
$ [2sec 1sec] | sort -n
╭───┬──────╮
│ 0 │ 2sec │
│ 1 │ 1sec │
╰───┴──────╯
```
- New behavior
```nushell
$ [2sec 1sec] | sort -n
╭───┬──────╮
│ 0 │ 1sec │
│ 1 │ 2sec │
╰───┴──────╯
```
2. `sort-by -i`
- Old behavior (uppercase words appear before lowercase words as they
would in a typical sort, indicating this is not actually an insensitive
sort)
```nushell
$ ["BAR" "bar" "foo" 2 "FOO" 1] | wrap a | sort-by -i a
╭───┬─────╮
│ # │ a │
├───┼─────┤
│ 0 │ 1 │
│ 1 │ 2 │
│ 2 │ BAR │
│ 3 │ FOO │
│ 4 │ bar │
│ 5 │ foo │
╰───┴─────╯
```
- New behavior (strings are sorted stably, indicating this is an
insensitive sort)
```nushell
$ ["BAR" "bar" "foo" 2 "FOO" 1] | wrap a | sort-by -i a
╭───┬─────╮
│ # │ a │
├───┼─────┤
│ 0 │ 1 │
│ 1 │ 2 │
│ 2 │ BAR │
│ 3 │ bar │
│ 4 │ foo │
│ 5 │ FOO │
╰───┴─────╯
```
3. `sort-by -n`
- Old behavior (natural sort does not work when data contains non-string
values)
```nushell
$ ["10" 8 "9"] | wrap a | sort-by -n a
╭───┬────╮
│ # │ a │
├───┼────┤
│ 0 │ 8 │
│ 1 │ 10 │
│ 2 │ 9 │
╰───┴────╯
```
- New behavior
```nushell
$ ["10" 8 "9"] | wrap a | sort-by -n a
╭───┬────╮
│ # │ a │
├───┼────┤
│ 0 │ 8 │
│ 1 │ 9 │
│ 2 │ 10 │
╰───┴────╯
```
</details>
<details>
<summary>
Sorting a list of non-record values with a non-existent column/path now
errors instead of sorting the values directly (<code>sort</code> should
be used for this, not <code>sort-by</code>)
</summary>
Old behavior:
```nushell
$ [2 1] | sort-by foo
╭───┬───╮
│ 0 │ 1 │
│ 1 │ 2 │
╰───┴───╯
```
New behavior:
```nushell
$ [2 1] | sort-by foo
Error: nu:🐚:incompatible_path_access
× Data cannot be accessed with a cell path
╭─[entry #29:1:17]
1 │ [2 1] | sort-by foo
· ─┬─
· ╰── int doesn't support cell paths
╰────
```
</details>
<details>
<summary><code>sort</code> and <code>sort-by</code> output
<code>List</code> instead of <code>ListStream</code> </summary>
This isn't a meaningful change (unless I misunderstand the purpose of
ListStream), since `sort` and `sort-by` both need to collect in order to
do the sorting anyway, but is user observable.
Old behavior:
```nushell
$ ls | sort | describe -d
╭──────────┬───────────────────╮
│ type │ stream │
│ origin │ nushell │
│ subtype │ {record 3 fields} │
│ metadata │ {record 1 field} │
╰──────────┴───────────────────╯
```
```nushell
$ ls | sort-by name | describe -d
╭──────────┬───────────────────╮
│ type │ stream │
│ origin │ nushell │
│ subtype │ {record 3 fields} │
│ metadata │ {record 1 field} │
╰──────────┴───────────────────╯
```
New behavior:
```nushell
ls | sort | describe -d
╭────────┬─────────────────╮
│ type │ list │
│ length │ 22 │
│ values │ [table 22 rows] │
╰────────┴─────────────────╯
```
```nushell
$ ls | sort-by name | describe -d
╭────────┬─────────────────╮
│ type │ list │
│ length │ 22 │
│ values │ [table 22 rows] │
╰────────┴─────────────────╯
```
</details>
- `sort` now errors when nothing is piped in (`sort-by` already did
this)
# Tests + Formatting
I added lots of unit tests on the new sort implementation to enforce new
sort behaviors and prevent regressions.
# After Submitting
See [docs PR](https://github.com/nushell/nushell.github.io/pull/1568),
which is ~2/3 finished.
---------
Co-authored-by: NotTheDr01ds <32344964+NotTheDr01ds@users.noreply.github.com>
Co-authored-by: Ian Manske <ian.manske@pm.me>
# Description
Fixes#14000 by once again calling `set_current_dir()`, but doing so
with the `cwd` from the current state, rather than the (previously
removed) argument to `merge_env()`.
# User-Facing Changes
Bug fix
# Tests + Formatting
If this looks good, I'll look at adding a test case for it.
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
N/A
Updated summary for commit
[612e0e2](612e0e2160)
- While folks are welcome to read through the entire comments, the core
information is summarized here.
# Description
This PR drastically improves startup times of Nushell by only parsing a
single submodule of the Standard Library that provides the `banner` and
`pwd` commands. All other Standard Library commands and submodules are
parsed when imported by the user. This cuts startup times by more than
60%.
At the moment, we have stopped adding to `std-lib` because every
addition adds a small amount to the Nushell startup time.
With this change, we should once again be able to allow new
functionality to be added to the Standard Library without it impacting
`nu` startup times.
# User-Facing Changes
* Nushell now starts about 60% faster
* Breaking change: The `dirs` (Shells) aliases will return a warning
message that it will not be auto-loaded in the following release, along
with instructions on how to restore it (and disable the message)
* The `use std <submodule> *` syntax is available for convenience, but
should be avoided in scripts as it parses the entire `std` module and
all other submodules and places it in scope. The correct syntax to
*just* load a submodule is `use std/<submodule> *` (asterisk optional).
The slash is important. This will be documented.
* `use std *` can be used for convenience to load all of the library but
still incurs the full loading-time.
* `std/dirs`: Semi-breaking change. The `dirs` command replaces the
`show` command. This is more in line with the directory-stack
functionality found in other shells. Existing users will not be impacted
by this as the alias (`shells`) remains the same.
* Breaking-change: Technically a breaking change, but probably only
impacts maintainers of `std`. The virtual path for the standard library
has changed. It could previously be imported using its virtual path (and
technically, this would have been the correct way to do it):
```nu
use NU_STDLIB_VIRTUAL_DIR/std
```
The path is now simply `std/`:
```nu
use std
```
All submodules have moved accordingly.
# Timings
Comparisons below were made:
* In a temporary, clean config directory using `$env.XDG_CONFIG_HOME =
(mktemp -d)`.
* `nu` was run with a release build
* `nu` was run one time to generate the default `config.nu` (etc.) files
- Otherwise timings would include the user-prompt
* The shell was exited and then restarted several times to get timing
samples
(Note: Old timings based on 0.97 rather than 0.98, but in the range of
being accurate)
| Scenario | `$nu.startup-time` |
| --- | --- |
| 0.97.2
([aaaab8e](aaaab8e070))
Without this PR | 23ms - 24ms |
| This PR with deprecated commands | 9ms - <11ms |
| This PR after deprecated commands are removed in following release |
8ms - <10ms |
| Final PR (remove deprecated), using `--no-std-lib` | 6.1ms to 6.4ms |
| Final PR (remove deprecated), using `--no-config-file` | 3.1ms - 3.6ms
|
| Final PR (remove deprecated), using `--no-config-file --no-std-lib` |
1ms - 1.5ms |
*These last two timings point to the opportunity for further
optimization (see comment in thread below (will link once I write it).*
# Implementation details for future maintenance
* `use std banner` is a ridiculously deceptive call. That call parses
and imports *all* of `std` into scope. Simply replacing it with `use
std/core *` is essentially what saves ~14-15ms. This *only* imports the
submodule with the `banner` and `pwd` commands.
* From the code-comments, the reason that `NU_STDLIB_VIRTUAL_DIR` was
used as a prefix was so that there wouldn't be an issue if a user had a
`./std/mod.nu` in the current directory. This does **not** appear to be
an issue. After removing the prefix, I tested with both a relative
module as well as one in the `$env.NU_LIB_DIRS` path, and in all cases
the *internal* `std` still took precedence.
* By removing the prefix, users can now `use std` (and variants) without
requiring that it already be parsed and in scope.
* In the next release, we'll stop autoloading the `dirs` (shells)
functionality. While this only costs an additional 1-1.5ms, I think it's
better moved to the `config.nu` where the user can optionally remove it.
The main reason is its use of aliases (which have also caused issues) -
The `n`, `p`, and `g` short-commands are valuable real-estate, and users
may want to map these to something else.
For this release, there's an `deprecated_dirs` module that is still
autoloaded. As with the top-level commands, use of these will give a
deprecation warning with instructions on how to handle going forward.
To help with this, moved the aliases to their own submodule inside the
`dirs` module.
* Also sneaks in a small change where the top-level `dirs` command is
now the replacement for `dirs show`
* Fixed a double-import of `assert` in `dirs.nu`
* The `show_banner` step is replaced with simply `banner` rather than
re-importing it.
* A `virtual_path` may now be referenced with either a forward-slash or
a backward-slash on Windows. This allows `use std/<submodule>` to work
on all platforms.
# Performance side-notes:
* Future parsing and/or IR improvements should improve performance even
further.
* While the existing load time penalty of `std-lib` was not noticeable
on many systems, Nushell runs on a wide-variety of hardware and OS
platforms. Slower platforms will naturally see a bigger jump in
performance here. For users starting multiple Nushell sessions
frequently (e.g., `tmux`, Zellij, `screen`, et. al.) it is recommended
to keep total startup time (including user configuration) under ~250ms.
# Tests + Formatting
* All tests are green
* Updated tests:
- Removed the test that confirmed that `std` was loaded (since we
don't).
- Removed the `shells` test since it is not autoloaded. Main `dirs.nu`
functionality is tested through `stdlib-test`.
- Many tests assumed that the library was fully loaded, because it was
(even though we didn't intend for it to be). Fixed those tests.
- Tests now import only the necessary submodules (e.g., `use
std/assert`, rather than `use std assert`)
- Some tests *thought* they were loading `std/log`, but were doing so
improperly. This was masked by the now-fixed "load-everything-into-scope
bug". Local CI would pass due the `$env.NU_LOG_<...>` variables being
inherited from the calling process, but would fail in the "clean" GitHub
CI environment. These tests have also been fixed.
* Added additional tests for the changes
# After Submitting
Will update the Standard Library doc page
# Description
Title says it all, changes `EngineState::get_env_var` to return a
`Option<&'a Value>` instead of an owned `Option<Value>`. This avoids
some unnecessary clones.
I also made a similar change to the `PluginExecutionContext` trait.
# Description
Fixes#13949 where `$env.LAST_EXIT_CODE` was not being set for internal
errors.
# Tests + Formatting
Cannot test due to limitations with the `nu_repl` test bin.
# Description
In the PR #13832 I used some newtypes for the old IDs. `SpanId` and
`RegId` already used newtypes, to streamline the code, I made them into
the same style as the other marker-based IDs.
Since `RegId` should be a bit smaller (it uses a `u32` instead of
`usize`) according to @devyn, I made the `Id` type generic with `usize`
as the default inner value.
The question still stands how `Display` should be implemented if even.
# User-Facing Changes
Users of the internal values of `RegId` or `SpanId` have breaking
changes but who outside nushell itself even uses these?
# After Submitting
The IDs will be streamlined and all type-safe.
# Description
In this PR I replaced most of the raw usize IDs with
[newtypes](https://doc.rust-lang.org/rust-by-example/generics/new_types.html).
Some other IDs already started using new types and in this PR I did not
want to touch them. To make the implementation less repetitive, I made
use of a generic `Id<T>` with marker structs. If this lands I would try
to move make other IDs also in this pattern.
Also at some places I needed to use `cast`, I'm not sure if the type was
incorrect and therefore casting not needed or if actually different ID
types intermingle sometimes.
# User-Facing Changes
Probably few, if you got a `DeclId` via a function and placed it later
again it will still work.
# Description
Old code was comparing remaining positional arguments with total number
of arguments, where it should've compared remaining positional with
with remaining arguments of any kind. This means that if a function was
given too few arguments, `calculate_end_span` would believe that it
actually had too many arguments, since after parsing the first few
arguments, the number of remaining arguments needed were fewer than the
*total* number of arguments, of which we had used several.
Fixes#9072
Fixes: https://github.com/nushell/nushell/issues/13930
Fixes: https://github.com/nushell/nushell/issues/12069
Fixes: https://github.com/nushell/nushell/issues/8385
Extracted from #10381
## Bonus
It also improves the error handling on missing positional arguments
before keywords (no longer crashing since #9851). Instead of just giving
the keyword to the parser for the missing positional, we give an
explicit error about a missing positional argument. I would like better
descriptions than "missing var_name" though, but I'm not sure if that's
available without
Old error
```
Error: nu::parser::parse_mismatch
× Parse mismatch during operation.
╭─[entry #1:1:1]
1 │ let = if foo
· ┬
· ╰── expected valid variable name
╰────
```
New error
```
Error: nu::parser::missing_positional
× Missing required positional argument.
╭─[entry #18:1:1]
1 │ let = foo
· ┬
· ╰── missing var_name
╰────
help: Usage: let <var_name> = <initial_value>
```
# User-Facing Changes
The program `alias = = =` is no longer accepted by the parser
This PR sets the current working directory to the location of the
Nushell executable at startup, using `std::env::set_current_dir()`. This
is desirable because after PR
https://github.com/nushell/nushell/pull/12922, we no longer change our
current working directory even after `cd` is executed, and some OS might
lock the directory where Nushell started.
The location of the Nushell executable is chosen because it cannot be
removed while Nushell is running anyways, so we don't have to worry
about OS locking it.
This PR has the side effect that it breaks buggy command even harder.
I'll keep this PR as a draft until these commands are fixed, but it
might be helpful to pull this PR if you're working on fixing one of
those bugs.
---------
Co-authored-by: Devyn Cairns <devyn.cairns@gmail.com>
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
# Description
This PR updates the shell_integration defaults so that they work as
described in default_config.nu even when there is no config.nu file.
closes#13924
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
# Tests + Formatting
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> **Note**
> from `nushell` you can also use the `toolkit` as follows
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# After Submitting
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# Description
Instead of handling a foreground process being stopped in any way, we
were simply ignoring SIGTSTP (which the terminal usually sends to the
foreground process group when Ctrl-Z is pressed), and propagating this
to our foreground children. This works for most processes, but it
generally fails for applications which put the terminal in raw mode[1]
and implement their own suspension mechanism (typically TUI apps like
helix[2], neovim[3], top[4] or amp[5]). In these cases, triggering
suspension within the app results in the terminal getting blocked, since
the application is waiting for a SIGCONT, while nushell is waiting for
it to exit.
Fix this by unblocking SIGTSTP for our foreground children (neovim,
helix and probably others send this to themselves while trying to
suspend), and displaying the following message whenever one of them gets
stopped:
nushell currently does not support background jobs
press any key to continue
Pressing any key will then send SIGCONT to the child's process group and
resume waiting.
This fix is probably going to be superseded by a proper background job
implementation (#247) at some point, but for now it's better than
completely blocking the terminal.
[1]
https://docs.rs/crossterm/latest/crossterm/terminal/index.html#raw-mode
[2] https://helix-editor.com/
[3] https://neovim.io/
[4] https://man7.org/linux/man-pages/man1/top.1.html
[5] https://amp.rs/
- fixes#1038
- fixes#7335
- fixes#10335
# User-Facing Changes
While any foreground process is running, Ctrl-Z is no longer ignored.
Instead, the message described above is displayed, and nushell waits for
a key to be pressed.
# 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 -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `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
tests for the standard library
> **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
> ```
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# After Submitting
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# Description
Partialy addresses #13868. `try` does not catch non-zero exit code
errors from the last command in a pipeline if the result is assigned to
a variable using `let` (or `mut`).
This was fixed by adding a new `OutDest::Value` case. This is used when
the pipeline is in a "value" position. I.e., it will be collected into a
value. This ended up replacing most of the usages of `OutDest::Capture`.
So, this PR also renames `OutDest::Capture` to `OutDest::PipeSeparate`
to better fit the few remaining use cases for it.
# User-Facing Changes
Bug fix.
# Tests + Formatting
Added two tests.
# Description
Similar to #13870 (thanks @WindSoilder), this PR adds a boolean which
determines whether to ignore any errors from an external command. This
is in order to fix#13876. I.e., `do -p` does not wait for externals to
complete before continuing.
# User-Facing Changes
Bug fix.
# Tests + Formatting
Added a test.
# Description
Makes IR the default evaluator, in preparation to remove the non-IR
evaluator in a future release.
# User-Facing Changes
* Remove `NU_USE_IR` option
* Add `NU_DISABLE_IR` option
* IR is enabled unless `NU_DISABLE_IR` is set
# After Submitting
- [ ] release notes
# Description
Fixes a bug in the IR for `try` to match that of the regular evaluator
(continuing from #13515):
```nushell
# without IR:
try { ^false } catch { 'caught' } # == 'caught'
# with IR:
try { ^false } catch { 'caught' } # error, non-zero exit code
```
In this PR, both now evaluate to `caught`. For the implementation, I had
to add another instruction, and feel free to suggest better
alternatives. In the future, it might be possible to get rid of this
extra instruction.
# User-Facing Changes
Bug fix, `try { ^false } catch { 'caught' }` now works in IR.
