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Author SHA1 Message Date
Piepmatz
66bc0542e0
Refactor I/O Errors (#14927)
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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):
![Screenshot 2025-01-25
190426](https://github.com/user-attachments/assets/a41b6aa6-a440-497d-bbcc-3ac0121c9226)

## `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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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
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- `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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I updated tests to account for the new I/O error structure and
formatting changes.

# 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.
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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>
2025-01-28 16:03:31 -06:00
Douglas
0872e9c3ae
Allow both NU_PLUGIN_DIRS const and env at the same time (#14553)
# Description

Fix #14544 and is also the reciprocal of #14549.

Before: If both a const and env `NU_PLUGIN_DIRS` were defined at the
same time, the env paths would not be used.
After: The directories from `const NU_PLUGIN_DIRS` are searched for a
matching filename, and if not found, `$env.NU_PLUGIN_DIRS` directories
will be searched.

Before: `$env.NU_PLUGIN_DIRS` was unnecessary set both in main() and in
default_env.nu
After: `$env.NU_PLUGIN_DIRS` is only set in main()

Before: `$env.NU_PLUGIN_DIRS` was set to `plugins` in the config
directory
After: `$env.NU_PLUGIN_DIRS` is set to an empty list and `const
NU_PLUGIN_DIRS` is set to the directory above.

Also updates `sample_env.nu` to use the `const`

# User-Facing Changes

Most scenarios should work just fine as there continues to be an
`$env.NU_PLUGIN_DIRS` to append to or override.

However, there is a small chance of a breaking change if someone was
*querying* the old default `$env.NU_PLUGIN_DIRS`.

# Tests + Formatting

- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`

Also updated the `env` tests and added one for the `const`.

# After Submitting

Config doc updates
2024-12-11 11:41:06 -06:00
Devyn Cairns
3af575cce7 Make plugin list read state from plugin registry file as well (#14085)
# Description

[Context on
Discord](https://discord.com/channels/601130461678272522/855947301380947968/1292279795035668583)

**This is a breaking change, due to the removal of `is_running`.**

Some users find the `plugin list` command confusing, because it doesn't
show anything different after running `plugin add` or `plugin rm`. This
modifies the `plugin list` command to also look at the plugin registry
file to give some idea of how the plugins in engine state differ from
those in the plugin registry file.

The following values of `status` are now produced instead of
`is_running`:

- `added`: The plugin is present in the plugin registry file, but not in
the engine.
- `loaded`: The plugin is present both in the plugin registry file and
in the engine, but is not running.
- `running`: The plugin is currently running, and the `pid` column
should contain its process ID.
- `modified`: The plugin state present in the plugin registry file is
different from the state in the engine.
- `removed`: The plugin is still loaded in the engine, but is not
present in the plugin registry file.
- `invalid`: The data in the plugin registry file couldn't be
deserialized, and the plugin most likely needs to be added again.

Example (`commands` omitted):

```
╭──────┬─────────────────────┬────────────┬───────────┬──────────┬─────────────────────────────────────────────────────┬─────────╮
│    # │        name         │  version   │  status   │   pid    │                      filename                       │  shell  │
├──────┼─────────────────────┼────────────┼───────────┼──────────┼─────────────────────────────────────────────────────┼─────────┤
│    0 │ custom_values       │ 0.1.0      │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_custom_values      │         │
│    1 │ dbus                │ 0.11.0     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_dbus               │         │
│    2 │ example             │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_example            │         │
│    3 │ explore_ir          │ 0.3.0      │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_explore_ir         │         │
│    4 │ formats             │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_formats            │         │
│    5 │ gstat               │ 0.98.1     │ running   │   236662 │ /home/devyn/.cargo/bin/nu_plugin_gstat              │         │
│    6 │ inc                 │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_inc                │         │
│    7 │ polars              │ 0.98.1     │ added     │          │ /home/devyn/.cargo/bin/nu_plugin_polars             │         │
│    8 │ query               │ 0.98.1     │ removed   │          │ /home/devyn/.cargo/bin/nu_plugin_query              │         │
│    9 │ stress_internals    │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_stress_internals   │         │
╰──────┴─────────────────────┴────────────┴───────────┴──────────┴─────────────────────────────────────────────────────┴─────────╯

```

# User-Facing Changes

To `plugin list`:

* **Breaking:** The `is_running` column is removed and replaced with
`status`. Use `status == running` to filter equivalently.
* The `--plugin-config` from other plugin management commands is now
supported.
* Added an `--engine` flag which behaves more or less like before, and
doesn't load the plugin registry file at all.
* Added a `--registry` flag which only checks the plugin registry file.
All plugins appear as `added` since there is no state to compare with.

Because the default is to check both, the `plugin list` command might be
a little bit slower. If you don't need to check the plugin registry
file, the `--engine` flag does not load the plugin registry file at all,
so it should be just as fast as before.

# Tests + Formatting

Added tests for `added` and `removed` statuses. `modified` and `invalid`
are a bit more tricky so I didn't try.

# After Submitting

- [ ] update documentation that references the `plugin list` command
- [ ] release notes
2024-10-20 23:12:57 +02:00
Ian Manske
28b6db115a
Revert PRs for 0.99.1 patch (#14119)
# Description

Temporarily reverts PRs merged after the 0.99.1 bump.
2024-10-18 02:51:14 +00:00
Devyn Cairns
0209992f6c
Make plugin list read state from plugin registry file as well (#14085)
# Description

[Context on
Discord](https://discord.com/channels/601130461678272522/855947301380947968/1292279795035668583)

**This is a breaking change, due to the removal of `is_running`.**

Some users find the `plugin list` command confusing, because it doesn't
show anything different after running `plugin add` or `plugin rm`. This
modifies the `plugin list` command to also look at the plugin registry
file to give some idea of how the plugins in engine state differ from
those in the plugin registry file.

The following values of `status` are now produced instead of
`is_running`:

- `added`: The plugin is present in the plugin registry file, but not in
the engine.
- `loaded`: The plugin is present both in the plugin registry file and
in the engine, but is not running.
- `running`: The plugin is currently running, and the `pid` column
should contain its process ID.
- `modified`: The plugin state present in the plugin registry file is
different from the state in the engine.
- `removed`: The plugin is still loaded in the engine, but is not
present in the plugin registry file.
- `invalid`: The data in the plugin registry file couldn't be
deserialized, and the plugin most likely needs to be added again.

Example (`commands` omitted):

```
╭──────┬─────────────────────┬────────────┬───────────┬──────────┬─────────────────────────────────────────────────────┬─────────╮
│    # │        name         │  version   │  status   │   pid    │                      filename                       │  shell  │
├──────┼─────────────────────┼────────────┼───────────┼──────────┼─────────────────────────────────────────────────────┼─────────┤
│    0 │ custom_values       │ 0.1.0      │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_custom_values      │         │
│    1 │ dbus                │ 0.11.0     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_dbus               │         │
│    2 │ example             │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_example            │         │
│    3 │ explore_ir          │ 0.3.0      │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_explore_ir         │         │
│    4 │ formats             │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_formats            │         │
│    5 │ gstat               │ 0.98.1     │ running   │   236662 │ /home/devyn/.cargo/bin/nu_plugin_gstat              │         │
│    6 │ inc                 │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_inc                │         │
│    7 │ polars              │ 0.98.1     │ added     │          │ /home/devyn/.cargo/bin/nu_plugin_polars             │         │
│    8 │ query               │ 0.98.1     │ removed   │          │ /home/devyn/.cargo/bin/nu_plugin_query              │         │
│    9 │ stress_internals    │ 0.98.1     │ loaded    │          │ /home/devyn/.cargo/bin/nu_plugin_stress_internals   │         │
╰──────┴─────────────────────┴────────────┴───────────┴──────────┴─────────────────────────────────────────────────────┴─────────╯

```

# User-Facing Changes

To `plugin list`:

* **Breaking:** The `is_running` column is removed and replaced with
`status`. Use `status == running` to filter equivalently.
* The `--plugin-config` from other plugin management commands is now
supported.
* Added an `--engine` flag which behaves more or less like before, and
doesn't load the plugin registry file at all.
* Added a `--registry` flag which only checks the plugin registry file.
All plugins appear as `added` since there is no state to compare with.

Because the default is to check both, the `plugin list` command might be
a little bit slower. If you don't need to check the plugin registry
file, the `--engine` flag does not load the plugin registry file at all,
so it should be just as fast as before.

# Tests + Formatting

Added tests for `added` and `removed` statuses. `modified` and `invalid`
are a bit more tricky so I didn't try.

# After Submitting

- [ ] update documentation that references the `plugin list` command
- [ ] release notes
2024-10-16 21:24:45 -05:00
Ian Manske
157494e803
Make get_env_var return a reference to a Value (#13987)
# 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.
2024-10-02 13:05:48 +02:00
Devyn Cairns
a71732ba12
Add context to the I/O error messages in nu_cmd_plugin::util::modify_plugin_file() (#13259)
# Description

This might help @hustcer debug problems with `setup-nu`. The error
messages with the file I/O in `modify_plugin_file()` are not currently
not specific about what file path was involved in the I/O operation.

The spans on those errors have also changed to the span of the custom
path if provided.

# User-Facing Changes

- Slightly better error
2024-06-27 23:49:06 -07:00
YizhePKU
bdb6daa4b5
Migrate to a new PWD API (#12603)
This is the first PR towards migrating to a new `$env.PWD` API that
returns potentially un-canonicalized paths. Refer to PR #12515 for
motivations.

## New API: `EngineState::cwd()`

The goal of the new API is to cover both parse-time and runtime use
case, and avoid unintentional misuse. It takes an `Option<Stack>` as
argument, which if supplied, will search for `$env.PWD` on the stack in
additional to the engine state. I think with this design, there's less
confusion over parse-time and runtime environments. If you have access
to a stack, just supply it; otherwise supply `None`.

## Deprecation of other PWD-related APIs

Other APIs are re-implemented using `EngineState::cwd()` and properly
documented. They're marked deprecated, but their behavior is unchanged.
Unused APIs are deleted, and code that accesses `$env.PWD` directly
without using an API is rewritten.

Deprecated APIs:

* `EngineState::current_work_dir()`
* `StateWorkingSet::get_cwd()`
* `env::current_dir()`
* `env::current_dir_str()`
* `env::current_dir_const()`
* `env::current_dir_str_const()`

Other changes:

* `EngineState::get_cwd()` (deleted)
* `StateWorkingSet::list_env()` (deleted)
* `repl::do_run_cmd()` (rewritten with `env::current_dir_str()`)

## `cd` and `pwd` now use logical paths by default

This pulls the changes from PR #12515. It's currently somewhat broken
because using non-canonicalized paths exposed a bug in our path
normalization logic (Issue #12602). Once that is fixed, this should
work.

## Future plans

This PR needs some tests. Which test helpers should I use, and where
should I put those tests?

I noticed that unquoted paths are expanded within `eval_filepath()` and
`eval_directory()` before they even reach the `cd` command. This means
every paths is expanded twice. Is this intended?

Once this PR lands, the plan is to review all usages of the deprecated
APIs and migrate them to `EngineState::cwd()`. In the meantime, these
usages are annotated with `#[allow(deprecated)]` to avoid breaking CI.

---------

Co-authored-by: Jakub Žádník <kubouch@gmail.com>
2024-05-03 14:33:09 +03:00
Devyn Cairns
25cbcb511d
Rename plugin cache file ⇒ plugin registry file (#12634)
# Description
So far this seems like the winner of my poll on what the name should be.
I'll take this off draft once the poll expires, if this is indeed the
winner.
2024-04-24 17:40:39 -05:00
Devyn Cairns
b576123b0a
Accept filenames in other plugin management commands (#12639)
# Description

This allows the following commands to all accept a filename instead of a
plugin name:

- `plugin use`
- `plugin rm`
- `plugin stop`

Slightly complicated because of the need to also check against
`NU_PLUGIN_DIRS`, but I also fixed some issues with that at the same
time

Requested by @fdncred

# User-Facing Changes

The new commands are updated as described.

# Tests + Formatting

Tests for `NU_PLUGIN_DIRS` handling also made more robust.

- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`

# After Submitting

- [ ] Double check new docs to make sure they describe this capability
2024-04-24 06:28:45 -05:00
Devyn Cairns
5c7f7883c8
Add ErrSpan extension trait for Result (#12626)
# Description
This adds an extension trait to `Result` that wraps errors in `Spanned`,
saving the effort of calling `.map_err(|err| err.into_spanned(span))`
every time. This will hopefully make it even more likely that someone
will want to use a spanned `io::Error` and make it easier to remove the
impl for `From<io::Error> for ShellError` because that doesn't have span
information.
2024-04-23 10:39:55 +02:00
Devyn Cairns
2595f31541
Overhaul the plugin cache file with a new msgpack+brotli format (#12579)
# Description

- Plugin signatures are now saved to `plugin.msgpackz`, which is
brotli-compressed MessagePack.
- The file is updated incrementally, rather than writing all plugin
commands in the engine every time.
- The file always contains the result of the `Signature` call to the
plugin, even if commands were removed.
- Invalid data for a particular plugin just causes an error to be
reported, but the rest of the plugins can still be parsed

# User-Facing Changes

- The plugin file has a different filename, and it's not a nushell
script.
- The default `plugin.nu` file will be automatically migrated the first
time, but not other plugin config files.
- We don't currently provide any utilities that could help edit this
file, beyond `plugin add` and `plugin rm`
  - `from msgpackz`, `to msgpackz` could also help
- New commands: `plugin add`, `plugin rm`

# Tests + Formatting

Tests added for the format and for the invalid handling.

- 🟢 `toolkit fmt`
- 🟢 `toolkit clippy`
- 🟢 `toolkit test`
- 🟢 `toolkit test stdlib`

# After Submitting

- [ ] Check for documentation changes
- [ ] Definitely needs release notes
2024-04-21 07:36:26 -05:00