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# Description This allows plugins to report their version (and potentially other metadata in the future). The version is shown in `plugin list` and in `version`. The metadata is stored in the registry file, and reflects whatever was retrieved on `plugin add`, not necessarily the running binary. This can help you to diagnose if there's some kind of mismatch with what you expect. We could potentially use this functionality to show a warning or error if a plugin being run does not have the same version as what was in the cache file, suggesting `plugin add` be run again, but I haven't done that at this point. It is optional, and it requires the plugin author to make some code changes if they want to provide it, since I can't automatically determine the version of the calling crate or anything tricky like that to do it. Example: ``` > plugin list | select name version is_running pid ╭───┬────────────────┬─────────┬────────────┬─────╮ │ # │ name │ version │ is_running │ pid │ ├───┼────────────────┼─────────┼────────────┼─────┤ │ 0 │ example │ 0.93.1 │ false │ │ │ 1 │ gstat │ 0.93.1 │ false │ │ │ 2 │ inc │ 0.93.1 │ false │ │ │ 3 │ python_example │ 0.1.0 │ false │ │ ╰───┴────────────────┴─────────┴────────────┴─────╯ ``` cc @maxim-uvarov (he asked for it) # User-Facing Changes - `plugin list` gets a `version` column - `version` shows plugin versions when available - plugin authors *should* add `fn metadata()` to their `impl Plugin`, but don't have to # Tests + Formatting Tested the low level stuff and also the `plugin list` column. # After Submitting - [ ] update plugin guide docs - [ ] update plugin protocol docs (`Metadata` call & response) - [ ] update plugin template (`fn metadata()` should be easy) - [ ] release notes
39 lines
1 KiB
Rust
39 lines
1 KiB
Rust
use nu_plugin::{Plugin, PluginCommand};
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mod commands;
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mod example;
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pub use commands::*;
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pub use example::ExamplePlugin;
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impl Plugin for ExamplePlugin {
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fn version(&self) -> String {
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env!("CARGO_PKG_VERSION").into()
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}
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fn commands(&self) -> Vec<Box<dyn PluginCommand<Plugin = Self>>> {
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// This is a list of all of the commands you would like Nu to register when your plugin is
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// loaded.
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//
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// If it doesn't appear on this list, it won't be added.
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vec![
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Box::new(Main),
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// Basic demos
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Box::new(One),
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Box::new(Two),
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Box::new(Three),
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// Engine interface demos
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Box::new(Config),
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Box::new(Env),
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Box::new(ViewSpan),
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Box::new(DisableGc),
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// Stream demos
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Box::new(CollectBytes),
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Box::new(Echo),
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Box::new(ForEach),
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Box::new(Generate),
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Box::new(Seq),
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Box::new(Sum),
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]
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}
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}
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