use nu_plugin::{serve_plugin, CapnpSerializer}; use nu_plugin_example::Example; fn main() { // When defining your plugin, you can select the Serializer that could be // used to encode and decode the messages. The available options are // CapnpSerializer and JsonSerializer. Both are defined in the serializer // folder in nu-plugin. serve_plugin(&mut Example {}, CapnpSerializer {}) // Note // When creating plugins in other languages one needs to consider how a plugin // is added and used in nushell. // The steps are: // - The plugin is register. In this stage nushell calls the binary file of // the plugin sending information using the encoded PluginCall::Signature object. // Use this encoded data in your plugin to design the logic that will return // the encoded signatures. // Nushell is expecting and encoded PluginResponse::Signature with all the // plugin signatures // - When calling the plugin, nushell sends to the binary file the encoded // PluginCall::CallInfo which has all the call information, such as the // values of the arguments, the name of the signature called and the input // from the pipeline. // Use this data to design your plugin login and to create the value that // will be sent to nushell // Nushell expects an encoded PluginResponse::Value from the plugin // - If an error needs to be sent back to nushell, one can encode PluginResponse::Error. // This is a labeled error that nushell can format for pretty printing }