Commit Graph

10 Commits

Author SHA1 Message Date
Eric Hodel
7071617f18
Allow plugins to receive configuration from the nushell configuration (#10955)
# Description

When nushell calls a plugin it now sends a configuration `Value` from
the nushell config under `$env.config.plugins.PLUGIN_SHORT_NAME`. This
allows plugin authors to read configuration provided by plugin users.

The `PLUGIN_SHORT_NAME` must match the registered filename after
`nu_plugin_`. If you register `target/debug/nu_plugin_config` the
`PLUGIN_NAME` will be `config` and the nushell config will loook like:

        $env.config = {
          # ...
          plugins: {
            config: [
              some
              values
            ]
          }
        }

Configuration may also use a closure which allows passing values from
`$env` to a plugin:

        $env.config = {
          # ...
          plugins: {
            config: {||
              $env.some_value
            }
          }
        }

This is a breaking change for the plugin API as the `Plugin::run()`
function now accepts a new configuration argument which is an
`&Option<Value>`. If no configuration was supplied the value is `None`.

Plugins compiled after this change should work with older nushell, and
will behave as if the configuration was not set.

Initially discussed in #10867

# User-Facing Changes

* Plugins can read configuration data stored in `$env.config.plugins`
* The plugin `CallInfo` now includes a `config` entry, existing plugins
will require updates

# Tests + Formatting

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

# After Submitting

- [ ] Update [Creating a plugin (in
Rust)](https://www.nushell.sh/contributor-book/plugins.html#creating-a-plugin-in-rust)
[source](https://github.com/nushell/nushell.github.io/blob/main/contributor-book/plugins.md)
- [ ] Add "Configuration" section to [Plugins
documentation](https://www.nushell.sh/contributor-book/plugins.html)
2024-01-15 16:59:47 +08:00
Eric Hodel
81d00f71a9
Show plugin extra usage and search terms (#10952)
# Description

The `PluginSignature` type supports extra usage but this was not
available in `plugin_name --help`. It also supports search terms but
these did not appear in `help commands`

New behavior show below is the "Extra usage for nu-example-1" line and
the "Search terms:" line

```
❯ nu-example-1 --help
PluginSignature test 1 for plugin. Returns Value::Nothing

Extra usage for nu-example-1

Search terms: example

Usage:
  > nu-example-1 {flags} <a> <b> (opt) ...(rest)

Flags:
  -h, --help - Display the help message for this command
  -f, --flag - a flag for the signature
  -n, --named <String> - named string

Parameters:
  a <int>: required integer value
  b <string>: required string value
  opt <int>: Optional number (optional)
  ...rest <string>: rest value string

Examples:
  running example with an int value and string value
  > nu-example-1 3 bb
```

Search terms are also available in `help commands`:

```
❯ help commands | where name == "nu-example-1" | select name search_terms
╭──────────────┬──────────────╮
│     name     │ search_terms │
├──────────────┼──────────────┤
│ nu-example-1 │ example      │
╰──────────────┴──────────────╯
```

# User-Facing Changes

Users can now see plugin extra usage and search terms 

# Tests + Formatting

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

# After Submitting

N/A
2023-11-04 15:12:58 -05:00
WindSoilder
208ffdc1da
Move some from xxx commands to plugin (#7942)
# Description

From nushell 0.8 philosophy:
https://github.com/nushell/nushell.github.io/blob/main/contributor-book/philosophy_0_80.md#core-categories

> The following categories should be moved to plugins:
Uncommon format support

So this pr is trying to move following commands to plugin:
- [X] from eml
- [x] from ics
- [x] from ini
- [x] from vcf

And we can have a new plugin handles for these formatting, currently
it's implemented here:

https://github.com/WindSoilder/nu_plugin_format

The command usage should be the same to original command.

If it's ok, the plugin can support more formats like
[parquet](https://github.com/fdncred/nu_plugin_from_parquet), or [EDN
format](https://github.com/nushell/nushell/issues/6415), or something
else.

Just create a draft pr to show what's the blueprint looks like, and is
it a good direction to move forward?

# User-Facing Changes

_(List of all changes that impact the user experience here. This helps
us keep track of breaking changes.)_

# 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 -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# 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.
2023-02-13 12:42:08 +00:00
Mathspy
daa2148136
Add CustomValue support to plugins (#6070)
* Skeleton implementation

Lots and lots of TODOs

* Bootstrap simple CustomValue plugin support test

* Create nu_plugin_custom_value

* Skeleton for nu_plugin_custom_values

* Return a custom value from plugin

* Encode CustomValues from plugin calls as PluginResponse::PluginData

* Add new PluginCall variant CollapseCustomValue

* Handle CollapseCustomValue plugin calls

* Add CallInput::Data variant to CallInfo inputs

* Handle CallInfo with CallInput::Data plugin calls

* Send CallInput::Data if Value is PluginCustomValue from plugin calls

* Remove unnecessary boxing of plugins CallInfo

* Add fields needed to collapse PluginCustomValue to it

* Document PluginCustomValue and its purpose

* Impl collapsing using plugin calls in PluginCustomValue::to_base_value

* Implement proper typetag based deserialization for CoolCustomValue

* Test demonstrating that passing back a custom value to plugin works

* Added a failing test for describing plugin CustomValues

* Support describe for PluginCustomValues

- Add name to PluginResponse::PluginData
  - Also turn it into a struct for clarity
- Add name to PluginCustomValue
- Return name field from PluginCustomValue

* Demonstrate that plugins can create and handle multiple CustomValues

* Add bincode to nu-plugin dependencies

This is for demonstration purposes, any schemaless binary seralization
format will work. I picked bincode since it's the most popular for Rust
but there are defintely better options out there for this usecase

* serde_json::Value -> Vec<u8>

* Update capnp schema for new CallInfo.input field

* Move call_input capnp serialization and deserialization into new file

* Deserialize Value's span from Value itself instead of passing call.head

I am not sure if this was correct and I am breaking it or if it was a
bug, I don't fully understand how nu creates and uses Spans. What should
reuse spans and what should recreate new ones?
But yeah it felt weird that the Value's Span was being ignored since in
the json serializer just uses the Value's Span

* Add call_info value round trip test

* Add capnp CallInput::Data serialization and deserialization support

* Add CallInfo::CollapseCustomValue to capnp schema

* Add capnp PluginCall::CollapseCustomValue serialization and deserialization support

* Add PluginResponse::PluginData to capnp schema

* Add capnp PluginResponse::PluginData serialization and deserialization support

* Switch plugins::custom_values tests to capnp

Both json and capnp would work now! Sadly I can't choose both at the
same time :(

* Add missing JsonSerializer round trip tests

* Handle plugin returning PluginData as a response to CollapseCustomValue

* Refactor plugin calling into a reusable function

Many less levels of indentation now!

* Export PluginData from nu_plugin

So plugins can create their very own serve_plugin with whatever
CustomValue behavior they may desire

* Error if CustomValue cannot be handled by Plugin
2022-07-25 17:32:56 +01:00
Mathspy
c66b97126f
Restore nu_with_plugins test macro (#6065)
* Updated nu_with_plugins to handle new nushell

- Now it requires the plugin format and name to be passed in, because
  we can't really guess the format
- It calls `register` with format and plugin path
- It creates a temporary folder and in it an empty temporary plugin.nu
  so that the tests don't conflict with each other or with local copy of
  plugin.nu
- Instead of passing the commands via stdin it passes them via the new
  --commands command line argument

* Rename path to command for clarity

* Enable core_inc tests

Remove deprecated inc feature and replace with new plugin feature

* Update core_inc tests for new nu_with_plugins syntax

* Rework core_inc::can_only_apply_one

The new inc plugin doesn't error if passed more than one but instead
chooses the highest increment

* Gate all plugin tests behind feature = "plugin" instead of one by one

* Remove format!-like behavior from nu_with_plugins

nu_with_plugins had format!-like behavior where it would allow calls
such as this:
```rs
nu_with_plugins!(
  cwd: "dir/",
  "open {} | get {}",
  "Cargo.toml",
  "package.version"
)
```
And although nifty it seems to have never been used before and the same
can be achieved with a format! like so:
```rs
nu_with_plugins!(
  cwd: "dir/",
  format!("open {} | get {}", "Cargo.toml", "package.version")
)
```
So I am removing it to keep the complexity of the macro in check

* Add multi-plugin support to nu_with_plugins

Useful for testing interactions between plugins

* Alternative 1: run `cargo build` inside of tests

* Handle Windows by canonicalizing paths and add .exe

One VM install later and lots of learning about how command line
arguments work and here we are
2022-07-22 00:14:37 -04:00
Jonathan Turner
d8594a62c2
Add wasm support (#2199)
* Working towards a PoC for wasm

* Move bson and sqlite to plugins

* proof of concept now working

* tests are green

* Add CI test for --no-default-features

* Fix some tests

* Fix clippy and windows build

* More fixes

* Fix the windows build

* Fix the windows test
2020-07-18 13:59:23 +12:00
Andrés N. Robalino
ad43ef08e5 Support average for tables. 2020-05-30 10:33:09 -05:00
Andrés N. Robalino
48ee20782f Ensure end_filter plugin lifecycle stage gets called. 2020-05-29 04:03:25 -05:00
Andrés N. Robalino
fe01a223a4 Str plugin promoted to built-in Nu command. 2020-05-28 11:18:58 -05:00
Andrés N. Robalino
4034129dba This commit is the continuing phase of extracting functionality to subcrates. We extract test helpers and begin to change Nu shell's test organization along with it. 2019-12-15 11:34:58 -05:00