# Description
There are some clippy(version 0.1.86) errors on nushell repo. This pr is
trying to fix it.
# User-Facing Changes
Hopefully none.
# Tests + Formatting
NaN
# After Submitting
NaN
Closes#15395
# User-Facing Changes
Certain errors no longer leave the argument stack in an unexpected
state:
```diff
let x: any = 1; try { $x | get path } catch { print caught }
-$.path # extra `print` argument from the failed `get` call
caught
```
# Description
If `eval_call` fails in `check_input_types` or `gather_arguments`, the
cleanup code is still executed.
# Description
This is an attempt to improve the nushell situation with regard to issue
#247.
This PR implements:
- [X] spawning jobs: `job spawn { do_background_thing }`
Jobs will be implemented as threads and not forks, to maintain a
consistent behavior between unix and windows.
- [X] listing running jobs: `job list`
This should allow users to list what background tasks they currently
have running.
- [X] killing jobs: `job kill <id>`
- [X] interupting nushell code in the job's background thread
- [X] interrupting the job's currently-running process, if any.
Things that should be taken into consideration for implementation:
- [X] (unix-only) Handling `TSTP` signals while executing code and
turning the current program into a background job, and unfreezing them
in foreground `job unfreeze`.
- [X] Ensuring processes spawned by background jobs get distinct process
groups from the nushell shell itself
This PR originally aimed to implement some of the following, but it is
probably ideal to be left for another PR (scope creep)
- Disowning external process jobs (`job dispatch`)
- Inter job communication (`job send/recv`)
Roadblocks encountered so far:
- Nushell does some weird terminal sequence magics which make so that
when a background process or thread prints something to stderr and the
prompt is idle, the stderr output ends up showing up weirdly
In this PR, the two new variants for `ErrorKind`, `FileNotFound`
and `DirectoryNotFound` with a nice `not_found_as` method for the
`ErrorKind` to easily specify the `NotFound` errors. I also updated some
places where I could of think of with these new variants and the message
for `NotFound` is no longer "Entity not found" but "Not found" to be
less strange.
closes#15142closes#15055
# Description
This PR adds two new `ParseError` and `ShellError` cases for type errors
relating to operators.
- `OperatorUnsupportedType` is used when a type is not supported by an
operator in any way, shape, or form. E.g., `+` does not support `bool`.
- `OperatorIncompatibleTypes` is used when a operator is used with types
it supports, but the combination of types provided cannot be used
together. E.g., `filesize + duration` is not a valid combination.
The other preexisting error cases related to operators have been removed
and replaced with the new ones above. Namely:
- `ShellError::OperatorMismatch`
- `ShellError::UnsupportedOperator`
- `ParseError::UnsupportedOperationLHS`
- `ParseError::UnsupportedOperationRHS`
- `ParseError::UnsupportedOperationTernary`
# User-Facing Changes
- `help operators` now lists the precedence of `not` as 55 instead of 0
(above the other boolean operators). Fixes#13675.
- `math median` and `math mode` now ignore NaN values so that `[NaN NaN]
| math median` and `[NaN NaN] | math mode` no longer trigger a type
error. Instead, it's now an empty input error. Fixing this in earnest
can be left for a future PR.
- Comparisons with `nan` now return false instead of causing an error.
E.g., `1 == nan` is now `false`.
- All the operator type errors have been standardized and reworked. In
particular, they can now have a help message, which is currently used
for types errors relating to `++`.
```nu
[1] ++ 2
```
```
Error: nu::parser::operator_unsupported_type
× The '++' operator does not work on values of type 'int'.
╭─[entry #1:1:5]
1 │ [1] ++ 2
· ─┬ ┬
· │ ╰── int
· ╰── does not support 'int'
╰────
help: if you meant to append a value to a list or a record to a table, use the `append` command or wrap the value in a list. For example: `$list ++ $value` should be
`$list ++ [$value]` or `$list | append $value`.
```
# Description
Add custom command attributes.
- Attributes are placed before a command definition and start with a `@`
character.
- Attribute invocations consist of const command call. The command's
name must start with "attr ", but this prefix is not used in the
invocation.
- A command named `attr example` is invoked as an attribute as
`@example`
- Several built-in attribute commands are provided as part of this PR
- `attr example`: Attaches an example to the commands help text
```nushell
# Double numbers
@example "double an int" { 5 | double } --result 10
@example "double a float" { 0.5 | double } --result 1.0
def double []: [number -> number] {
$in * 2
}
```
- `attr search-terms`: Adds search terms to a command
- ~`attr env`: Equivalent to using `def --env`~
- ~`attr wrapped`: Equivalent to using `def --wrapped`~ shelved for
later discussion
- several testing related attributes in `std/testing`
- If an attribute has no internal/special purpose, it's stored as
command metadata that can be obtained with `scope commands`.
- This allows having attributes like `@test` which can be used by test
runners.
- Used the `@example` attribute for `std` examples.
- Updated the std tests and test runner to use `@test` attributes
- Added completions for attributes
# User-Facing Changes
Users can add examples to their own command definitions, and add other
arbitrary attributes.
# Tests + Formatting
- 🟢 toolkit fmt
- 🟢 toolkit clippy
- 🟢 toolkit test
- 🟢 toolkit test stdlib
# After Submitting
- Add documentation about the attribute syntax and built-in attributes
- `help attributes`
---------
Co-authored-by: 132ikl <132@ikl.sh>
# Description
This PR makes `match` no longer run closures as if they were blocks.
This also allows returning closures from `match` without needing to wrap
in an outer subexpression or block.
Before PR:
```nushell
match 1 { _ => {|| print hi} }
# => hi
```
After PR:
```nushell
match 1 { _ => {|| print hi} }
# => closure_1090
```
# User-Facing Changes
* `match` no longer runs closures as if they were blocks
# Tests + Formatting
N/A
# After Submitting
N/A
# Description
After this pr, nushell is able to raise errors with a backtrace, which
should make users easier to debug. To enable the feature, users need to
set env variable via `$env.NU_BACKTRACE = 1`. But yeah it might not work
perfectly, there are some corner cases which might not be handled.
I think it should close#13379 in another way.
### About the change
The implementation mostly contained with 2 parts:
1. introduce a new `ChainedError` struct as well as a new
`ShellError::ChainedError` variant. If `eval_instruction` returned an
error, it converts the error to `ShellError::ChainedError`.
`ChainedError` struct is responsable to display errors properly. It
needs to handle the following 2 cases:
- if we run a function which runs `error make` internally, it needs to
display the error itself along with caller span.
- if we run a `error make` directly, or some commands directly returns
an error, we just want nushell raise an error about `error make`.
2. Attach caller spans to `ListStream` and `ByteStream`, because they
are lazy streams, and *only* contains the span that runs it
directly(like `^false`, for example), so nushell needs to add all caller
spans to the stream.
For example: in `def a [] { ^false }; def b [] { a; 33 }; b`, when we
run `b`, which runs `a`, which runs `^false`, the `ByteStream` only
contains the span of `^false`, we need to make it contains the span of
`a`, so nushell is able to get all spans if something bad happened.
This behavior is happened after running `Instruction::Call`, if it
returns a `ByteStream` and `ListStream`, it will call `push_caller_span`
method to attach call spans.
# User-Facing Changes
It's better to demostrate how it works by examples, given the following
definition:
```nushell
> $env.NU_BACKTRACE = 1
> def a [x] { if $x == 3 { error make {msg: 'a custom error'}}}
> def a_2 [x] { if $x == 3 { ^false } else { $x } }
> def a_3 [x] { if $x == 3 { [1 2 3] | each {error make {msg: 'a custom error inside list stream'} } } }
> def b [--list-stream --external] {
if $external == true {
# error with non-zero exit code, which is generated from external command.
a_2 1; a_2 3; a_2 2
} else if $list_stream == true {
# error generated by list-stream
a_3 1; a_3 3; a_3 2
} else {
# error generated by command directly
a 1; a 2; a 3
}
}
```
Run `b` directly shows the following error:
<details>
```nushell
Error: chained_error
× oops
╭─[entry #27:1:1]
1 │ b
· ┬
· ╰── error happened when running this
╰────
Error: chained_error
× oops
╭─[entry #26:10:19]
9 │ # error generated by command directly
10 │ a 1; a 2; a 3
· ┬
· ╰── error happened when running this
11 │ }
╰────
Error:
× a custom error
╭─[entry #6:1:26]
1 │ def a [x] { if $x == 3 { error make {msg: 'a custom error'}}}
· ─────┬────
· ╰── originates from here
╰────
```
</details>
Run `b --list-stream` shows the following error
<details>
```nushell
Error: chained_error
× oops
╭─[entry #28:1:1]
1 │ b --list-stream
· ┬
· ╰── error happened when running this
╰────
Error: nu:🐚:eval_block_with_input
× Eval block failed with pipeline input
╭─[entry #26:7:16]
6 │ # error generated by list-stream
7 │ a_3 1; a_3 3; a_3 2
· ─┬─
· ╰── source value
8 │ } else {
╰────
Error: nu:🐚:eval_block_with_input
× Eval block failed with pipeline input
╭─[entry #23:1:29]
1 │ def a_3 [x] { if $x == 3 { [1 2 3] | each {error make {msg: 'a custom error inside list stream'} } } }
· ┬
· ╰── source value
╰────
Error:
× a custom error inside list stream
╭─[entry #23:1:44]
1 │ def a_3 [x] { if $x == 3 { [1 2 3] | each {error make {msg: 'a custom error inside list stream'} } } }
· ─────┬────
· ╰── originates from here
╰────
```
</details>
Run `b --external` shows the following error:
<details>
```nushell
Error: chained_error
× oops
╭─[entry #29:1:1]
1 │ b --external
· ┬
· ╰── error happened when running this
╰────
Error: nu:🐚:eval_block_with_input
× Eval block failed with pipeline input
╭─[entry #26:4:16]
3 │ # error with non-zero exit code, which is generated from external command.
4 │ a_2 1; a_2 3; a_2 2
· ─┬─
· ╰── source value
5 │ } else if $list_stream == true {
╰────
Error: nu:🐚:non_zero_exit_code
× External command had a non-zero exit code
╭─[entry #7:1:29]
1 │ def a_2 [x] { if $x == 3 { ^false } else { $x } }
· ──┬──
· ╰── exited with code 1
╰────
```
</details>
It also added a message to guide the usage of NU_BACKTRACE, see the last
line in the following example:
```shell
ls asdfasd
Error: nu:🐚:io::not_found
× I/O error
╰─▶ × Entity not found
╭─[entry #17:1:4]
1 │ ls asdfasd
· ───┬───
· ╰── Entity not found
╰────
help: The error occurred at '/home/windsoilder/projects/nushell/asdfasd'
set the `NU_BACKTRACE=1` environment variable to display a backtrace.
```
# Tests + Formatting
Added some tests for the behavior.
# After Submitting
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# Description
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This PR makes two changes related to [run-time pipeline input type
checking](https://github.com/nushell/nushell/pull/14741):
1. The check which bypasses type checking for commands with only
`Type::Nothing` input types has been expanded to work with commands with
multiple `Type::Nothing` inputs for different outputs. For example,
`ast` has three input/output type pairs, but all of the inputs are
`Type::Nothing`:
```
╭───┬─────────┬────────╮
│ # │ input │ output │
├───┼─────────┼────────┤
│ 0 │ nothing │ table │
│ 1 │ nothing │ record │
│ 2 │ nothing │ string │
╰───┴─────────┴────────╯
```
Before this PR, passing a value (which would otherwise be ignored) to
`ast` caused a run-time type error:
```
Error: nu:🐚:only_supports_this_input_type
× Input type not supported.
╭─[entry #1:1:6]
1 │ echo 123 | ast -j -f "hi"
· ─┬─ ─┬─
· │ ╰── only nothing, nothing, and nothing input data is supported
· ╰── input type: int
╰────
```
After this PR, no error is raised.
This doesn't really matter for `ast` (the only other built-in command
with a similar input/output type signature is `cal`), but it's more
logically consistent.
2. Bypasses input type-checking (parse-time ***and*** run-time) for some
(not all, see below) commands which have both a `Type::Nothing` input
and some other non-nothing `Type` input. This is accomplished by adding
a `Type::Any` input with the same output as the corresponding
`Type::Nothing` input/output pair.
This is necessary because some commands are intended to operate on an
argument with empty pipeline input, or operate on an empty pipeline
input with no argument. This causes issues when a value is implicitly
passed to one of these commands. I [discovered this
issue](https://discord.com/channels/601130461678272522/615962413203718156/1329945784346611712)
when working with an example where the `open` command is used in
`sort-by` closure:
```nushell
ls | sort-by { open -r $in.name | lines | length }
```
Before this PR (but after the run-time input type checking PR), this
error is raised:
```
Error: nu:🐚:only_supports_this_input_type
× Input type not supported.
╭─[entry #1:1:1]
1 │ ls | sort-by { open -r $in.name | lines | length }
· ─┬ ──┬─
· │ ╰── only nothing and string input data is supported
· ╰── input type: record<name: string, type: string, size: filesize, modified: date>
╰────
```
While this error is technically correct, we don't actually want to
return an error here since `open` ignores its pipeline input when an
argument is passed. This would be a parse-time error as well if the
parser was able to infer that the closure input type was a record, but
our type inference isn't that robust currently, so this technically
incorrect form snuck by type checking until #14741.
However, there are some commands with the same kind of type signature
where this behavior is actually desirable. This means we can't just
bypass type-checking for any command with a `Type::Nothing` input. These
commands operate on true `null` values, rather than ignoring their
input. For example, `length` returns `0` when passed a `null` value.
It's correct, and even desirable, to throw a run-time error when
`length` is passed an unexpected type. For example, a string, which
should instead be measured with `str length`:
```nushell
["hello" "world"] | sort-by { length }
# => Error: nu:🐚:only_supports_this_input_type
# =>
# => × Input type not supported.
# => ╭─[entry #32:1:10]
# => 1 │ ["hello" "world"] | sort-by { length }
# => · ───┬─── ───┬──
# => · │ ╰── only list<any>, binary, and nothing input data is supported
# => · ╰── input type: string
# => ╰────
```
We need a more robust way for commands to express how they handle the
`Type::Nothing` input case. I think a possible solution here is to allow
commands to express that they operate on `PipelineData::Empty`, rather
than `Value::Nothing`. Then, a command like `open` could have an empty
pipeline input type rather than a `Type::Nothing`, and the parse-time
and run-time pipeline input type checks know that `open` will safely
ignore an incorrectly typed input.
That being said, we have a release coming up and the above solution
might take a while to implement, so while unfortunate, bypassing input
type-checking for these problematic commands serves as a workaround to
avoid breaking changes in the release until a more robust solution is
implemented.
This PR bypasses input type-checking for the following commands:
* `load-env`: can take record of envvars as input or argument
* `nu-check`: checks input string or filename argument
* `open`: can take filename as input or argument
* `polars when`: can be used with input, or can be chained with another
`polars when`
* `stor insert`: data record can be passed as input or argument
* `stor update`: data record can be passed as input or argument
* `format date`: `--list` ignores input value
* `into datetime`: `--list` ignores input value (also added a
`Type::Nothing` input which was missing from this command)
These commands have a similar input/output signature to the above
commands, but are working as intended:
* `cd`: The input/output signature was actually incorrect, `cd` always
ignores its input. I fixed this in this PR.
* `generate`
* `get`
* `history import`
* `interleave`
* `into bool`
* `length`
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
As a temporary workaround, pipeline input type-checking for the
following commands has been bypassed to avoid undesirable run-time input
type checking errors which were previously not caught at parse-time:
* `open`
* `load-env`
* `format date`
* `into datetime`
* `nu-check`
* `stor insert`
* `stor update`
* `polars when`
# Tests + Formatting
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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
> ```
-->
CI became green in the time it took me to type the description 😄
# After Submitting
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N/A
# Description
I'm on rust toolchain 1.8.4, and I can see clippy warnings that can't be
caught by the ci workflow, primarily related to lifetime params.
I think it doesn't hurt to fix those in advance.
# User-Facing Changes
# Tests + Formatting
# After Submitting
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# Description
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This PR returns error values while checking pipeline input types and
positional argument types. This should help return non-nested errors
earlier and prevent confusing errors.
The positional argument change is directly related to an example given
on Discord. Before this PR, this is the error shown:
```
Error: nu:🐚:cant_convert
× Can't convert to record.
╭─[/home/rose/tmp/script.nu:23:5]
22 │ let entry = $in
23 │ ╭─▶ {
24 │ │ name: $entry,
25 │ │ details: {
26 │ │ context: $context
27 │ │ }
28 │ ├─▶ }
· ╰──── can't convert error to record
29 │ }
╰────
```
After this PR, this is the error shown:
```
Error: nu:🐚:eval_block_with_input
× Eval block failed with pipeline input
╭─[/home/rose/tmp/script.nu:23:5]
22 │ let entry = $in
23 │ ╭─▶ {
24 │ │ name: $entry,
25 │ │ details: {
26 │ │ context: $context
27 │ │ }
28 │ ├─▶ }
· ╰──── source value
29 │ }
╰────
Error: nu:🐚:type_mismatch
× Type mismatch.
╭─[/home/rose/tmp/much.nu:3:38]
2 │ $in | each { |elem|
3 │ print $elem.details.context.yaml.0
· ┬
· ╰── Can't access record values with a row index. Try specifying a column name instead
4 │ } | each { |elem|
╰────
```
I'm not certain if the pipeline input error check actually can ever be
triggered, but it seems to be a good defensive error handling strategy
regardless. My addition of the `Value::Error` case in the first place
would suggest it can be, but after looking at it more closely the error
that caused me to add the case in the first place was actually unrelated
to input typechecking.
Additionally, this PR does not affect the handling of nested errors, so
something like:
```nushell
try { ... } catch {|e| $e | reject raw | to nuon }
```
works the same before and after this PR.
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Errors values detected as arguments to commands or as pipeline input to
commands are immediately thrown, rather than passed to the command.
# Tests + Formatting
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- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
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N/A
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# Description
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It seems in my PR #14927 I missed a few calls to `IoError::new` that had
`Span::unknown` inside them, which shouldn't be used but rather
`IoError::new_internal`. I replaced these calls.
Thanks to @132ikl to finding out that I forgot some. 😄
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Pretty much none really.
# Tests + Formatting
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- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
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# Description
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As mentioned in #10698, we have too many `ShellError` variants, with
some even overlapping in meaning. This PR simplifies and improves I/O
error handling by restructuring `ShellError` related to I/O issues.
Previously, `ShellError::IOError` only contained a message string,
making it convenient but overly generic. It was widely used without
providing spans (#4323).
This PR introduces a new `ShellError::Io` variant that consolidates
multiple I/O-related errors (except for `ShellError::NetworkFailure`,
which remains distinct for now). The new `ShellError::Io` variant
replaces the following:
- `FileNotFound`
- `FileNotFoundCustom`
- `IOInterrupted`
- `IOError`
- `IOErrorSpanned`
- `NotADirectory`
- `DirectoryNotFound`
- `MoveNotPossible`
- `CreateNotPossible`
- `ChangeAccessTimeNotPossible`
- `ChangeModifiedTimeNotPossible`
- `RemoveNotPossible`
- `ReadingFile`
## The `IoError`
`IoError` includes the following fields:
1. **`kind`**: Extends `std::io::ErrorKind` to specify the type of I/O
error without needing new `ShellError` variants. This aligns with the
approach used in `std::io::Error`. This adds a second dimension to error
reporting by combining the `kind` field with `ShellError` variants,
making it easier to describe errors in more detail. As proposed by
@kubouch in [#design-discussion on
Discord](https://discord.com/channels/601130461678272522/615329862395101194/1323699197165178930),
this helps reduce the number of `ShellError` variants. In the error
report, the `kind` field is displayed as the "source" of the error,
e.g., "I/O error," followed by the specific kind of I/O error.
2. **`span`**: A non-optional field to encourage providing spans for
better error reporting (#4323).
3. **`path`**: Optional `PathBuf` to give context about the file or
directory involved in the error (#7695). If provided, it’s shown as a
help entry in error reports.
4. **`additional_context`**: Allows adding custom messages when the
span, kind, and path are insufficient. This is rendered in the error
report at the labeled span.
5. **`location`**: Sometimes, I/O errors occur in the engine itself and
are not caused directly by user input. In such cases, if we don’t have a
span and must set it to `Span::unknown()`, we need another way to
reference the error. For this, the `location` field uses the new
`Location` struct, which records the Rust file and line number where the
error occurred. This ensures that we at least know the Rust code
location that failed, helping with debugging. To make this work, a new
`location!` macro was added, which retrieves `file!`, `line!`, and
`column!` values accurately. If `Location::new` is used directly, it
issues a warning to remind developers to use the macro instead, ensuring
consistent and correct usage.
### Constructor Behavior
`IoError` provides five constructor methods:
- `new` and `new_with_additional_context`: Used for errors caused by
user input and require a valid (non-unknown) span to ensure precise
error reporting.
- `new_internal` and `new_internal_with_path`: Used for internal errors
where a span is not available. These methods require additional context
and the `Location` struct to pinpoint the source of the error in the
engine code.
- `factory`: Returns a closure that maps an `std::io::Error` to an
`IoError`. This is useful for handling multiple I/O errors that share
the same span and path, streamlining error handling in such cases.
## New Report Look
This is simulation how the I/O errors look like (the `open crates` is
simulated to show how internal errors are referenced now):
## `Span::test_data()`
To enable better testing, `Span::test_data()` now returns a value
distinct from `Span::unknown()`. Both `Span::test_data()` and
`Span::unknown()` refer to invalid source code, but having a separate
value for test data helps identify issues during testing while keeping
spans unique.
## Cursed Sneaky Error Transfers
I removed the conversions between `std::io::Error` and `ShellError` as
they often removed important information and were used too broadly to
handle I/O errors. This also removed the problematic implementation
found here:
7ea4895513/crates/nu-protocol/src/errors/shell_error.rs (L1534-L1583)
which hid some downcasting from I/O errors and made it hard to trace
where `ShellError` was converted into `std::io::Error`. To address this,
I introduced a new struct called `ShellErrorBridge`, which explicitly
defines this transfer behavior. With `ShellErrorBridge`, we can now
easily grep the codebase to locate and manage such conversions.
## Miscellaneous
- Removed the OS error added in #14640, as it’s no longer needed.
- Improved error messages in `glob_from` (#14679).
- Trying to open a directory with `open` caused a permissions denied
error (it's just what the OS provides). I added a `is_dir` check to
provide a better error in that case.
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
- Error outputs now include more detailed information and are formatted
differently, including updated error codes.
- The structure of `ShellError` has changed, requiring plugin authors
and embedders to update their implementations.
# Tests + Formatting
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> **Note**
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I updated tests to account for the new I/O error structure and
formatting changes.
# After Submitting
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This PR closes#7695 and closes#14892 and partially addresses #4323 and
#10698.
---------
Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com>
# Description
This PR add 2 new operators, `has` and `not-has`. They are basically
`in` and `not-in` with the order of operands swapped.
Motivation for this was the awkward way of searching for rows that
contain an item using `where`
```nushell
[[name, children]; [foo, [a, b, c]], [bar [d, e, f]]]
| where ("e" in $it.children)
```
vs
```nushell
[[name, children]; [foo, [a, b, c]], [bar [d, e, f]]]
| where children has "e"
```
# User-Facing Changes
Added `has` and `not-has` operators, mirroring `in` and `not-in`.
# Tests + Formatting
- 🟢 toolkit fmt
- 🟢 toolkit clippy
- 🟢 toolkit test
- 🟢 toolkit test stdlib
# After Submitting
# Description
This PR is a follow on to https://github.com/nushell/nushell/pull/14423
and finishes removing the `terminal_size` crate in favor of
`crossterm`'s `size()`.
# User-Facing Changes
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# Tests + Formatting
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# After Submitting
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# Description
Fixes multiple issues related to `ENV_CONVERSION` and
path-conversion-to-list.
* #14681 removed some calls to `convert_env_values()`, but we found that
this caused `nu -n` to no longer convert the path properly.
* `ENV_CONVERSIONS` have apparently never preserved case, meaning a
conversion with a key of `foo` would not update `$env.FOO` but rather
create a new environment variable with a different case.
* There was a partial code-path that attempted to solve this for `PATH`,
but it only worked for `PATH` and `Path`.
* `convert_env_values()`, which handled `ENV_CONVERSIONS` was called in
multiple places in the startup depending on flags.
This PR:
* Refactors the startup to handle the conversion in `main()` rather than
in each potential startup path
* Updates `get_env_var_insensitive()` functions added in #14390 to
return the name of the environment variable with its original case. This
allows code that updates environment variables to preserve the case.
* Makes use of the updated function in `ENV_CONVERSIONS` to preserve the
case of any updated environment variables. The `ENV_CONVERSION` key
itself is still case **insensitive**.
* Makes use of the updated function to preserve the case of the `PATH`
environment variable (normally handled separately, regardless of whether
or not there was an `ENV_CONVERSION` for it).
## Before
`env_convert_values` was run:
* Before the user `env.nu` ran, which included `nu -c <commandstring>`
and `nu <script.nu>`
* Before the REPL loaded, which included `nu -n`
## After
`env_convert_values` always runs once in `main()` before any config file
is processed or the REPL is started
# User-Facing Changes
Bug fixes
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
Added additional tests to prevent future regression.
# After Submitting
There is additional cleanup that should probably be done in
`convert_env_values()`. This function previously handled
`ENV_CONVERSIONS`, but there is no longer any need for this since
`convert_env_vars()` runs whenever `$env.ENV_CONVERSIONS` changes now.
This means that the only relevant task in the old `convert_env_values()`
is to convert the `PATH` to a list, and ensure that it is a list of
strings. It's still calling the `from_string` conversion on every
variable (just once) even though there are no `ENV_CONVERSIONS` at this
point.
Leaving that to another PR though, while we get the core issue fixed
with this one.
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# Description
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This PR adds type checking of all command input types at run-time.
Generally, these errors should be caught by the parser, but sometimes we
can't know the type of a value at parse-time. The simplest example is
using the `echo` command, which has an output type of `any`, so
prefixing a literal with `echo` will bypass parse-time type checking.
Before this PR, each command has to individually check its input types.
This can result in scenarios where the input/output types don't match
the actual command behavior. This can cause valid usage with an
non-`any` type to become a parse-time error if a command is missing that
type in its pipeline input/output (`drop nth` and `history import` do
this before this PR). Alternatively, a command may not list a type in
its input/output types, but doesn't actually reject that type in its
code, which can have unintended side effects (`get` does this on an
empty pipeline input, and `sort` used to before #13154).
After this PR, the type of the pipeline input is checked to ensure it
matches one of the input types listed in the proceeding command's
input/output types. While each of the issues in the "before this PR"
section could be addressed with each command individually, this PR
solves this issue for _all_ commands.
**This will likely cause some breakage**, as some commands have
incorrect input/output types, and should be adjusted. Also, some scripts
may have erroneous usage of commands. In writing this PR, I discovered
that `toolkit.nu` was passing `null` values to `str join`, which doesn't
accept nothing types (if folks think it should, we can adjust it in this
PR or in a different PR). I found some issues in the standard library
and its tests. I also found that carapace's vendor script had an
incorrect chaining of `get -i`:
```nushell
let expanded_alias = (scope aliases | where name == $spans.0 | get -i 0 | get -i expansion)
```
Before this PR, if the `get -i 0` ever actually did evaluate to `null`,
the second `get` invocation would error since `get` doesn't operate on
`null` values. After this PR, this is immediately a run-time error,
alerting the user to the problematic code. As a side note, we'll need to
PR this fix (`get -i 0 | get -i expansion` -> `get -i 0.expansion`) to
carapace.
A notable exception to the type checking is commands with input type of
`nothing -> <type>`. In this case, any input type is allowed. This
allows piping values into the command without an error being thrown. For
example, `123 | echo $in` would be an error without this exception.
Additionally, custom types bypass type checking (I believe this also
happens during parsing, but not certain)
I added a `is_subtype` method to `Value` and `PipelineData`. It
functions slightly differently than `get_type().is_subtype()`, as noted
in the doccomments. Notably, it respects structural typing of lists and
tables. For example, the type of a value `[{a: 123} {a: 456, b: 789}]`
is a subtype of `table<a: int>`, whereas the type returned by
`Value::get_type` is a `list<any>`. Similarly, `PipelineData` has some
special handling for `ListStream`s and `ByteStream`s. The latter was
needed for this PR to work properly with external commands.
Here's some examples.
Before:
```nu
1..2 | drop nth 1
Error: nu::parser::input_type_mismatch
× Command does not support range input.
╭─[entry #9:1:8]
1 │ 1..2 | drop nth 1
· ────┬───
· ╰── command doesn't support range input
╰────
echo 1..2 | drop nth 1
# => ╭───┬───╮
# => │ 0 │ 1 │
# => ╰───┴───╯
```
After this PR, I've adjusted `drop nth`'s input/output types to accept
range input.
Before this PR, zip accepted any value despite not being listed in its
input/output types. This caused different behavior depending on if you
triggered a parse error or not:
```nushell
1 | zip [2]
# => Error: nu::parser::input_type_mismatch
# =>
# => × Command does not support int input.
# => ╭─[entry #3:1:5]
# => 1 │ 1 | zip [2]
# => · ─┬─
# => · ╰── command doesn't support int input
# => ╰────
echo 1 | zip [2]
# => ╭───┬───────────╮
# => │ 0 │ ╭───┬───╮ │
# => │ │ │ 0 │ 1 │ │
# => │ │ │ 1 │ 2 │ │
# => │ │ ╰───┴───╯ │
# => ╰───┴───────────╯
```
After this PR, it works the same in both cases. For cases like this, if
we do decide we want `zip` or other commands to accept any input value,
then we should explicitly add that to the input types.
```nushell
1 | zip [2]
# => Error: nu::parser::input_type_mismatch
# =>
# => × Command does not support int input.
# => ╭─[entry #3:1:5]
# => 1 │ 1 | zip [2]
# => · ─┬─
# => · ╰── command doesn't support int input
# => ╰────
echo 1 | zip [2]
# => Error: nu:🐚:only_supports_this_input_type
# =>
# => × Input type not supported.
# => ╭─[entry #14:2:6]
# => 2 │ echo 1 | zip [2]
# => · ┬ ─┬─
# => · │ ╰── only list<any> and range input data is supported
# => · ╰── input type: int
# => ╰────
```
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
**Breaking change**: The type of a command's input is now checked
against the input/output types of that command at run-time. While these
errors should mostly be caught at parse-time, in cases where they can't
be detected at parse-time they will be caught at run-time instead. This
applies to both internal commands and custom commands.
Example function and corresponding parse-time error (same before and
after PR):
```nushell
def foo []: int -> nothing {
print $"my cool int is ($in)"
}
1 | foo
# => my cool int is 1
"evil string" | foo
# => Error: nu::parser::input_type_mismatch
# =>
# => × Command does not support string input.
# => ╭─[entry #16:1:17]
# => 1 │ "evil string" | foo
# => · ─┬─
# => · ╰── command doesn't support string input
# => ╰────
# =>
```
Before:
```nu
echo "evil string" | foo
# => my cool int is evil string
```
After:
```nu
echo "evil string" | foo
# => Error: nu:🐚:only_supports_this_input_type
# =>
# => × Input type not supported.
# => ╭─[entry #17:1:6]
# => 1 │ echo "evil string" | foo
# => · ──────┬────── ─┬─
# => · │ ╰── only int input data is supported
# => · ╰── input type: string
# => ╰────
```
Known affected internal commands which erroneously accepted any type:
* `str join`
* `zip`
* `reduce`
# Tests + Formatting
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- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
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* Play whack-a-mole with the commands and scripts this will inevitably
break
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# Description
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#14528 mentioned that trying to `open` a file in a directory where you
don't have read access results in a "file not found" error. I
investigated the error and could find the root issue in the
`nu_engine::glob_from` function. It uses `std::path::Path::canonicalize`
some layers down and that may return an `std::io::Error`. All these
errors were handled as "directory not found" which will be translated to
"file not found" in the `open` command. To fix this, I handled the
`PermssionDenied` error kind of the io error and passed that down. Now
trying to `open` a file from a directory with no permissions returns a
"permission denied" error.
Before/After:
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
That error is fixed, so correct error message.
# Tests + Formatting
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tests for the standard library
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> ```
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- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
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fixes#14528
# Description
Takes advantage of #14591 to remove the now-necessary calls to
`convert_env_values()` that I added in #14249. The function is now just
called once to convert `PATH`.
Also removed the Windows-build-time checks for `ensure_path`, since
previous case-insensitivity fixes make this unnecessary as well.
# User-Facing Changes
None - #14591 now handles conversion 'on-demand'.
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
N/A
# Description
Adds an `is_glob` function to the nu-glob crate that takes a string
pattern and returns whether or not it's a glob that would be expanded by
nu-glob. Right now, this just means checking if it contains `*`, `?`, or
`[`.
Previously, this same code was duplicated in the following places:
- `ls`: Determining whether to read a folder's contents or expand a glob
- `run_external.rs` in nu-command: Arguments to externals only have
n-dots and tilde expansion applied if they weren't globs
- `glob_from` in nu-engine:
- `glob_from` can get the prefix in a simpler way for non-globs
- If the canonical path for a non-glob path contains glob
metacharacters, it needs to be escaped
- `completion_common.rs` in nu-cli: File/folder completions containing
glob metacharacters need to be wrapped in quotes
All of these locations can use `nu_glob::is_glob` now instead of rolling
their own checks. This does mean that nu-cli now has a dependency on
nu-glob.
# User-Facing Changes
Users of nu-glob will now be able to check if a given pattern is a glob
expanded by nu-glob.
For users of Nushell, completion suggestions for files containing `]`
will no longer be wrapped in quotes if they contain no other glob
metacharacters. This is because unmatched `]`s are ignored by nu-glob,
but we used to consider such file completions contaminated anyway.
# Tests + Formatting
This is a very basic function, so I just added some doctests.
# After Submitting
This is meant to be used in
https://github.com/nushell/nushell/pull/14674.
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# Description
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In this PR I continued the idea of #11494, it added an `auto` option to
the ansi coloring config option, I did this too but in a more simple
approach.
So I added a new enum `UseAnsiColoring` with the three values `True`,
`False` and `Auto`. When that value is set to `auto`, the default value,
it will use `std::io::stdout().is_terminal()` to decided whether to use
ansi coloring. This allows to dynamically decide whether to print ansi
color codes or not, [cargo does it the same
way](652623b779/src/bin/cargo/main.rs (L72)).
`True` and `False` act as overrides to the `is_terminal` check. So with
that PR it is possible to force ansi colors on the `table` command or
automatically remove them from the miette errors if no terminal is used.
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
Terminal users shouldn't be affected by this change as the default value
was `true` and `is_terminal` returns for terminals `true` (duh).
Non-terminal users, that use `nu` in some embedded way or the engine
implemented in some other way (like my jupyter kernel) will now have by
default no ansi coloring and need to enable it manually if their
environment allows it.
# Tests + Formatting
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Make sure you've run and fixed any issues with these commands:
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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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The test for fancy errors expected ansi codes, since tests aren't run
"in terminal", the ansi codes got stripped away.
I added a line that forced ansi colors above it. I'm not sure if that
should be the case or if we should test against no ansi colors.
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
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This should resolve#11464 and partially #11847. This also closes
#11494.
- this PR should close#14514
# Description
Makes updates to `$env.ENV_CONVERSIONS` take effect immediately.
# User-Facing Changes
No breaking change, `$env.ENV_CONVERSIONS` can be set and its effect
used in the same file.
# Tests + Formatting
- 🟢 toolkit fmt
- 🟢 toolkit clippy
- 🟢 toolkit test
- 🟢 toolkit test stdlib
# After Submitting
N/A
# Description
Because `and` and `or` are short-circuiting operations in Nushell, they
must be compiled to a sequence that avoids evaluating the RHS if the LHS
is already sufficient to determine the output - i.e., `false` for `and`
and `true` for `or`. I initially implemented this with `branch-if`
instructions, simply returning the RHS if it needed to be evaluated, and
returning the short-circuited boolean value if it did not.
Example for `$a and $b`:
```
0: load-variable %0, var 999 "$a"
1: branch-if %0, 3
2: jump 5
3: load-variable %0, var 1000 "$b" # label(0), from(1:)
4: jump 6
5: load-literal %0, bool(false) # label(1), from(2:)
6: span %0 # label(2), from(4:)
7: return %0
```
Unfortunately, this broke polars, because using `and`/`or` on custom
values is perfectly valid and they're allowed to define that behavior
differently, and the polars plugin uses this for boolean masks. But
without using the `binary-op` instruction, that custom behavior is never
invoked. Additionally, `branch-if` requires a boolean, and custom values
are not booleans. This changes the IR to the following, using the
`match` instruction to check for the specific short-circuit value
instead, and still invoking `binary-op` otherwise:
```
0: load-variable %0, var 125 "$a"
1: match (false), %0, 4
2: load-variable %1, var 124 "$b"
3: binary-op %0, Boolean(And), %1
4: span %0 # label(0), from(1:)
5: return %0
```
I've also renamed `Pattern::Value` to `Pattern::Expression` and added a
proper `Pattern::Value` variant that actually contains a `Value`
instead. I'm still hoping to remove `Pattern::Expression` eventually,
because it's kind of a hack - we don't actually evaluate the expression,
we just match it against a few cases specifically for pattern matching,
and it's one of the cases where AST leaks into IR and I want to remove
all of those cases, because AST should not leak into IR.
Fixes#14518
# User-Facing Changes
- `and` and `or` now support custom values again.
- the IR is actually a little bit cleaner, though it may be a bit
slower; `match` is more complex.
# Tests + Formatting
The existing tests pass, but I didn't add anything new. Unfortunately I
don't think there's anything built-in to trigger this, but maybe some
testcases could be added to polars to test it.
Fixes#14542
# User-Facing Changes
Constant values are no longer missing from `scope variables` output
when the IR evaluator is enabled:
```diff
const foo = 1
scope variables | where name == "$foo" | get value.0 | to nuon
-null
+int
```
# Description
Before this PR, `help commands` uses the name from a command's
declaration rather than the name in the scope. This is problematic when
trying to view the help page for the `main` command of a module. For
example, `std bench`:
```nushell
use std/bench
help bench
# => Error: nu::parser::not_found
# =>
# => × Not found.
# => ╭─[entry #10:1:6]
# => 1 │ help bench
# => · ──┬──
# => · ╰── did not find anything under this name
# => ╰────
```
This can also cause confusion when importing specific commands from
modules. Furthermore, if there are multiple commands with the same name
from different modules, the help text for _both_ will appear when
querying their help text (this is especially problematic for `main`
commands, see #14033):
```nushell
use std/iter
help iter find
# => Error: nu::parser::not_found
# =>
# => × Not found.
# => ╭─[entry #3:1:6]
# => 1│ help iter find
# => · ────┬────
# => · ╰── did not find anything under this name
# => ╰────
help find
# => Searches terms in the input.
# =>
# => Search terms: filter, regex, search, condition
# =>
# => Usage:
# => > find {flags} ...(rest)
# [...]
# => Returns the first element of the list that matches the
# => closure predicate, `null` otherwise
# [...]
# (full text omitted for brevity)
```
This PR changes `help commands` to use the name as it is in scope, so
prefixing any command in scope with `help` will show the correct help
text.
```nushell
use std/bench
help bench
# [help text for std bench]
use std/iter
help iter find
# [help text for std iter find]
use std
help std bench
# [help text for std bench]
help std iter find
# [help text for std iter find]
```
Additionally, the IR code generation for commands called with the
`--help` text has been updated to reflect this change.
This does have one side effect: when a module has a `main` command
defined, running `help <name>` (which checks `help aliases`, then `help
commands`, then `help modules`) will show the help text for the `main`
command rather than the module. The help text for the module is still
accessible with `help modules <name>`.
Fixes#10499, #10311, #11609, #13470, #14033, and #14402.
Partially fixes#10707.
Does **not** fix#11447.
# User-Facing Changes
* Help text for commands can be obtained by running `help <command
name>`, where the command name is the same thing you would type in order
to execute the command. Previously, it was the name of the function as
written in the source file.
* For example, for the following module `spam` with command `meow`:
```nushell
module spam {
# help text
export def meow [] {}
}
```
* Before this PR:
* Regardless of how `meow` is `use`d, the help text is viewable by
running `help meow`.
* After this PR:
* When imported with `use spam`: The `meow` command is executed by
running `spam meow` and the `help` text is viewable by running `help
spam meow`.
* When imported with `use spam foo`: The `meow` command is executed by
running `meow` and the `help` text is viewable by running `meow`.
* When a module has a `main` command defined, `help <module name>` will
return help for the main command, rather than the module. To access the
help for the module, use `help modules <module name>`.
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# After Submitting
N/A
# Description
Fixes#14401 where expressions passed to `timeit` will execute twice.
This PR removes the expression support for `timeit`, as this behavior is
almost exclusive to `timeit` and can hinder migration to the IR
evaluator in the future. Additionally, `timeit` used to be able to take
a `block` as an argument. Blocks should probably only be allowed for
parser keywords, so this PR changes `timeit` to instead only take
closures as an argument. This also fixes an issue where environment
updates inside the `timeit` block would affect the parent scope and all
commands later in the pipeline.
```nu
> timeit { $env.FOO = 'bar' }; print $env.FOO
bar
```
# User-Facing Changes
`timeit` now only takes a closure as the first argument.
# After Submitting
Update examples in the book/docs if necessary.
# Description
#14249 loaded `convert_env_values()` several times to force more updates
to `ENV_CONVERSION`. This allows the user to treat variables as
structured data inside `config.nu` (and others).
Unfortunately, `convert_env_values()` did not originally anticipate
being called more than once, so it would attempt to re-convert values
that had already been converted. This usually leads to an error in the
conversion closure.
With this PR, values are only converted with `from_string` if they are
still strings; otherwise they are skipped and their existing value is
used.
# User-Facing Changes
No user-facing change when compared to 0.100, since closures written for
0.100's `ENV_CONVERSION` now work again without errors.
# Tests + Formatting
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
-
# After Submitting
Will remove the "workaround" from the Config doc preview.
# Description
This PR adds a `file` column to the `scope modules` output table.
# 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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Make sure you've run and fixed any issues with these commands:
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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
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
> ```
-->
# After Submitting
<!-- If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
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-->
# Description
This PR adds a new function that allows one to get an env var
case-insensitively. I did this so we can hopefully stop having problems
when Windows has HKLM as path and HKCU as Path.
Instead of just changing every function that used the original one, I
chose the ones that I thought were specific to getting the path. I
didn't want to go all in and make every env get case insensitive, but
maybe we should? 🤷🏻♂️closes#12676
# 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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Make sure you've run and fixed any issues with these commands:
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- `cargo test --workspace` to check that all tests pass (on Windows make
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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
> ```
-->
# 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.
-->
This PR implements PWD-per-drive as described in discussion #14355
# Description
On Windows, CMD or PowerShell assigns each drive its own current
directory. For example, if you are in 'C:\Windows', switch to 'D:', and
navigate to 'D:\Game', you can return to 'C:\Windows' by simply typing
'C:'.
This PR enables Nushell on Windows to have the same capability, allowing
each drive to maintain its own PWD (Present Working Directory).
# User-Facing Changes
Currently, 'cd' or 'ls' only accept absolute paths if the path starts
with 'C:' or another drive letter. With PWD-per-drive, users can use
'cd' (or auto cd) and 'ls' in the same way as 'cd' and 'dir' in
PowerShell, or similarly to 'cd' and 'dir' in CMD (noting that cd in CMD
has slightly different behavior, 'cd' for another drive only changes
current directory of that drive, but does not switch there).
Interaction example on switching between drives:
```Nushell
~>D:
D:\>cd Test
D:\Test\>C:
~>D:
D:\Test\>C:
~>cd D:..
D:\>C:x/../y/../z/..
~>cd D:Test\Test
D:\Test\Test>C:
~>D:...
D:\>
```
Interaction example on auto-completion at cmd line:
```Nushell
~>cd D:\test[Enter]
D:\test>~[Enter]
~>D:[TAB]
~>D:\test[Enter]
D:\test>c:.c[TAB]
c:\users\nushell\.cargo\ c:\users\nushell\.config\
```
Interaction example on pass PWD-per-drive to child process: (Note CMD
will use it, but PowerShell will ignore it though it still prepares such
info for child process)
```Nushell
~>cd D:\Test
D:\Test>cd E:\Test
E:\Test\>~
~>CMD
Microsoft Windows [Version 10.0.22631.4460]
(c) Microsoft Corporation. All rights reserved.
C:\Users\Nushell>d:
D:\Test>e:
E:\Test>
```
# Brief Change Description
1.Added 'crates/nu-path/src/pwd_per_drive.rs' to implement a 26-slot
array mapping drive letters to PWDs. Test cases are included in the same
file, along with a doctest for the usage of PWD-per-drive.
2. Modified 'crates/nu-path/src/lib.rs' to declare module of
pwd_per_drive and export struct for PWD-per-drive.
3. Modified 'crates/nu-protocol/src/engine/stack.rs' to sync PWD when
set_cwd() is called. Add PWD-per-drive map as member. Clone between
parent and child. Stub/proxy for nu_path::expand_path_with() to
facilitate filesystem commands using PWD-per-drive.
4. Modified 'crates/nu-cli/src/repl.rs' auto_cd uses PWD-per-drive to
expand path.
5. Modified 'crates/nu-cli/src/completions/completion_common.rs' to
expand relative path when press [TAB] at command line.
6. Modified 'crates/nu-engine/src/env.rs' to collect PWD-per-drive info
as env vars for child process as CMD or PowerShell do, this can let
child process inherit PWD-per-drive info.
7. Modified 'crates/nu-engine/src/eval.rs', caller clone callee's
PWD-per-drive info, supporting 'def --env'
8. Modified 'crates/nu-engine/src/eval_ir.rs', 'def --env' support.
Remove duplicated fn redirect_env()
9. Modified 'src/run.rs', to init PWD-per-drive when startup.
filesystem commands that modified:
1. Modified 'crates/nu-command/src/filesystem/cd.rs', 1 line change to
use stackscoped PWD-per-drive.
Other commands, commit pending....
Local test def --env OK:
```nushell
E:\study\nushell> def --env env_cd_demo [] {
::: cd ~
::: cd D:\Project
::: cd E:Crates
::: }
E:\study\nushell>
E:\study\nushell> def cd_no_demo [] {
::: cd ~
::: cd D:\Project
::: cd E:Crates
::: }
E:\study\nushell> cd_no_demo
E:\study\nushell> C:
C:\>D:
D:\>E:
E:\study\nushell>env_cd_demo
E:\study\nushell\crates> C:
~>D:
D:\Project>E:
E:\study\nushell\crates>
```
# Tests + Formatting
- `cargo fmt --all -- --check` passed.
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used`
passed.
- `cargo test --workspace` passed on Windows developer mode and Ubuntu.
- `cargo run -- -c "use toolkit.nu; toolkit test stdlib"` passed.
- nushell:
```
> use toolkit.nu # or use an `env_change` hook to activate it automatically
> toolkit check pr
> ```
passed
---------
Co-authored-by: pegasus.cadence@gmail.com <pegasus.cadence@gmail.com>
# Description
Removes unnecessary usages of `Call::rest_iter_flattened` and
`get_rest_for_glob_pattern` and replaces them with `CallExt::rest`.
# User-Facing Changes
None
# Description
Fixes#14470 where the `sys cpu` command is slow. This was done by
removing the `cpu_usage` column from the default output, since it takes
400ms to calculate. Instead a `--long` flag was added that, when
provided, adds back the `cpu_usage` column.
```nu
# Before
> bench { sys cpu | length } | get mean
401ms 591µs 896ns
# After
> bench { sys cpu | length } | get mean
500µs 13ns # around 1-2ms in practice
```
# User-Facing Changes
- `sys cpu` no longer has a `cpu_usage` column by default.
- Added a `--long` flag for `sys cpu` to add back the removed column.
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- fixes #xxxx
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# Description
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guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.
Description of your pull request goes here. **Provide examples and/or
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The [nushell/demo](https://github.com/nushell/demo) project successfully
demonstrated running Nushell in the browser using WASM. However, the
current version of Nushell cannot be easily built for the
`wasm32-unknown-unknown` target, the default for `wasm-bindgen`.
This PR introduces initial support for the `wasm32-unknown-unknown`
target by disabling OS-dependent features such as filesystem access, IO,
and platform/system-specific functionality. This separation is achieved
using a new `os` feature in the following crates:
- `nu-cmd-lang`
- `nu-command`
- `nu-engine`
- `nu-protocol`
The `os` feature includes all functionality that interacts with an
operating system. It is enabled by default, but can be disabled using
`--no-default-features`. All crates that depend on these core crates now
use `--no-default-features` to allow compilation for WASM.
To demonstrate compatibility, the following script builds all crates
expected to work with WASM. Direct user interaction, running external
commands, working with plugins, and features requiring `openssl` are out
of scope for now due to their complexity or reliance on C libraries,
which are difficult to compile and link in a WASM environment.
```nushell
[ # compatible crates
"nu-cmd-base",
"nu-cmd-extra",
"nu-cmd-lang",
"nu-color-config",
"nu-command",
"nu-derive-value",
"nu-engine",
"nu-glob",
"nu-json",
"nu-parser",
"nu-path",
"nu-pretty-hex",
"nu-protocol",
"nu-std",
"nu-system",
"nu-table",
"nu-term-grid",
"nu-utils",
"nuon"
] | each {cargo build -p $in --target wasm32-unknown-unknown --no-default-features}
```
## Caveats
This PR has a few caveats:
1. **`miette` and `terminal-size` Dependency Issue**
`miette` depends on `terminal-size`, which uses `rustix` when the target
is not Windows. However, `rustix` requires `std::os::unix`, which is
unavailable in WASM. To address this, I opened a
[PR](https://github.com/eminence/terminal-size/pull/68) for
`terminal-size` to conditionally compile `rustix` only when the target
is Unix. For now, the `Cargo.toml` includes patches to:
- Use my forked version of `terminal-size`.
- ~~Use an unreleased version of `miette` that depends on
`terminal-size@0.4`.~~
These patches are temporary and can be removed once the upstream changes
are merged and released.
2. **Test Output Adjustments**
Due to the slight bump in the `miette` version, one test required
adjustments to accommodate minor formatting changes in the error output,
such as shifted newlines.
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
This shouldn't break anything but allows using some crates for targeting
`wasm32-unknown-unknown` to revive the demo page eventually.
# Tests + Formatting
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Make sure you've run and fixed any issues with these commands:
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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
> ```
-->
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
I did not add any extra tests, I just checked that compiling works, also
when using the host target but unselecting the `os` feature.
# 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.
-->
~~Breaking the wasm support can be easily done by adding some `use`s or
by adding a new dependency, we should definitely add some CI that also
at least builds against wasm to make sure that building for it keep
working.~~
I added a job to build wasm.
---------
Co-authored-by: Ian Manske <ian.manske@pm.me>
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# Description
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Before this PR, you can access rendered error values that are raised in
a `try/catch` block by accessing the `rendered` element of the catch
error value:
```
$ try { ls nonexist.txt } catch {|e| print "my cool error:" $e.rendered }
my cool error:
nu:🐚:directory_not_found
× Directory not found
help: /home/rose/nonexist.txt does not exist
```
However, the rendered errors don't include the labels present in the
real rendered error, which would look like this:
```
$ ls nonexist.txt
Error: nu:🐚:directory_not_found
× Directory not found
╭─[entry #46:1:4]
1 │ ls nonexist.txt
· ──────┬─────
· ╰── directory not found
╰────
help: /home/rose/nonexist.txt does not exist
```
After this PR, the rendered error includes the labels:
```
$ try { ls nonexist.txt } catch {|e| print "my cool error:" $e.rendered }
my cool error:
Error: nu:🐚:directory_not_found
× Directory not found
╭─[entry #4:1:10]
1 │ try { ls nonexist.txt } catch {|e| print "my cool error:" $e.rendered }
· ──────┬─────
· ╰── directory not found
╰────
help: /home/rose/nonexist.txt does not exist
```
This change is accomplished by using the standard error formatting code
to render an error. This respects the error theme as before without any
extra scaffolding, but it means that e.g., the terminal size is also
respected. I think this is fine because the way the error is rendered
already changed based on config, and I think that a "rendered" error
should give back _exactly_ what would be shown to the user anyway.
@fdncred, let me know if you have any concerns with the way this is
handled since you were the one who implemented this feature in the first
place.
# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->
The `rendered` element of the `try`/`catch` error record now includes
labels in the error output.
# Tests + Formatting
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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
> ```
-->
- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`
# 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.
-->
N/A
# Description
The "append" operator currently serves as both the append operator and
the concatenation operator. This dual role creates ambiguity when
operating on nested lists.
```nu
[1 2] ++ 3 # appends a value to a list [1 2 3]
[1 2] ++ [3 4] # concatenates two lists [1 2 3 4]
[[1 2] [3 4]] ++ [5 6]
# does this give [[1 2] [3 4] [5 6]]
# or [[1 2] [3 4] 5 6]
```
Another problem is that `++=` can change the type of a variable:
```nu
mut str = 'hello '
$str ++= ['world']
($str | describe) == list<string>
```
Note that appending is only relevant for lists, but concatenation is
relevant for lists, strings, and binary values. Additionally, appending
can be expressed in terms of concatenation (see example below). So, this
PR changes the `++` operator to only perform concatenation.
# User-Facing Changes
Using the `++` operator with a list and a non-list value will now be a
compile time or runtime error.
```nu
mut list = []
$list ++= 1 # error
```
Instead, concatenate a list with one element:
```nu
$list ++= [1]
```
Or use `append`:
```nu
$list = $list | append 1
```
# After Submitting
Update book and docs.
---------
Co-authored-by: Douglas <32344964+NotTheDr01ds@users.noreply.github.com>
# Description
Removes the `NU_DISABLE_IR` option and some code related to evaluating
blocks with the AST
evaluator.
Does not entirely remove the AST evaluator yet. We still have some
dependencies on expression
evaluation in a few minor places which will take a little bit of effort
to fix.
Also changes `debug profile` to always include instructions, because the
output is a little
confusing otherwise, and removes the different options for
instructions/exprs.
# User-Facing Changes
- `NU_DISABLE_IR` no longer has any effect, and is removed. There is no
way to use the AST
evaluator.
- `debug profile` no longer has `--exprs`, `--instructions` options.
- `debug profile` lists `pc` and `instruction` columns by default now.
# Tests + Formatting
Eval tests fixed to only use IR.
# After Submitting
- [ ] release notes
- [ ] finish removing AST evaluator, come up with solutions for the
expression evaluation.
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# Description
<!--
Thank you for improving Nushell. Please, check our [contributing
guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.
Description of your pull request goes here. **Provide examples and/or
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Bump version to `0.100.0`
# User-Facing Changes
The new release `v0.100.0` is coming...
# Description
Fixes: #14110Fixes: #14087
I think it's ok to not generating instruction to `def` and `export def`
call. Because they just return `PipelineData::Empty` without doing
anything.
If nushell generates instructions for `def` and `export def`, nushell
will try to capture variables for these block. It's not the time to do
this.
# User-Facing Changes
```
nu -c "
def bar [] {
let x = 1
($x | foo)
}
def foo [] {
foo
}
"
```
Will no longer raise error.
# Tests + Formatting
Added 4 tests
