set up nushell plugin

Author: devyn

.gitignore

@@ -12,3 +12,8 @@ Cargo.lock
 
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
+
+
+# Added by cargo
+
+/target

Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "nu_plugin_dbus"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+nu-plugin = "0.89.0"
+nu-protocol = { version = "0.89.0", features = ["plugin"] }

src/main.rs

@@ -0,0 +1,40 @@
+use nu_plugin::{serve_plugin, MsgPackSerializer, Plugin, EvaluatedCall, LabeledError};
+use nu_protocol::{PluginSignature, Value};
+
+fn main() {
+    serve_plugin(&mut NuPluginDbus, MsgPackSerializer)
+}
+
+struct NuPluginDbus;
+
+impl Plugin for NuPluginDbus {
+    fn signature(&self) -> Vec<PluginSignature> {
+        vec![
+            PluginSignature::build("dbus")
+                .usage("Commands for interacting with D-Bus")
+                .search_terms(vec!["dbus".into()])
+                .category(nu_protocol::Category::Platform),
+        ]
+    }
+
+    fn run(
+        &mut self,
+        name: &str,
+        call: &EvaluatedCall,
+        input: &Value,
+    ) -> Result<Value, LabeledError> {
+        match name {
+            "dbus" => Err(LabeledError {
+                label: "The `dbus` command requires a subcommand".into(),
+                msg: "add --help to see subcommands".into(),
+                span: Some(call.head)
+            }),
+
+            _ => Err(LabeledError {
+                label: "Plugin invoked with unknown command name".into(),
+                msg: "unknown command".into(),
+                span: Some(call.head)
+            })
+        }
+    }
+}