Add Godot LSP support via netcat

This follows the same integration I use for helix editor which uses
the netcat (nc) executable to connect to the running Godot LSP.

At the moment the IP and Port are hardcoded, which isn't ideal, but
in a standard setup this is working as a starting point.

Author: moomerman

.gitignore

@@ -1,4 +1,10 @@
 .DS_Store
+
 gdscript.wasm
-test.gd
+extension.wasm
 grammars
+test.gd
+
+debug
+target
+Cargo.lock

Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "zed_gdscript"
+version = "0.0.1"
+edition = "2021"
+publish = false
+license = "MIT"
+
+# [lints]
+# workspace = true
+
+[lib]
+path = "src/gdscript.rs"
+crate-type = ["cdylib"]
+
+[dependencies]
+zed_extension_api = "0.0.6"

README.md

@@ -1,3 +1,9 @@
 # Zed GDScript
 
 This extension adds support for the [GDScript](https://docs.godotengine.org/en/stable/classes/index.html) language.
+
+## Language Server Protocol
+
+Support for the Godot Language Server Protocol (LSP) is provided via `nc` which is assumed to be in your `PATH`.
+
+The language server is expected to be running on the default ip `127.0.0.1` and port `6005`.

extension.toml

@@ -6,6 +6,11 @@ authors = ["Mark Brand <[email protected]>"]
 description = "GDScript language support for Zed"
 repository = "https://github.com/grndctrl/zed-gdscript"
 
+[language_servers.gdscript]
+name = "GDScript Language Server"
+language = "GDScript"
+
 [grammars.gdscript]
 repository = "https://github.com/PrestonKnopp/tree-sitter-gdscript"
 commit = "b5dea4d852db65f0872d849c24533eb121e03c76"
+

src/gdscript.rs

@@ -0,0 +1,28 @@
+use zed::LanguageServerId;
+use zed_extension_api::{self as zed, Result};
+
+struct GDScriptExtension;
+
+impl zed::Extension for GDScriptExtension {
+    fn new() -> Self {
+        Self
+    }
+
+    fn language_server_command(
+        &mut self,
+        _language_server_id: &LanguageServerId,
+        worktree: &zed::Worktree,
+    ) -> Result<zed::Command> {
+        let path = worktree
+            .which("nc")
+            .ok_or_else(|| "nc must be installed and available on your $PATH".to_string())?;
+
+        Ok(zed::Command {
+            command: path,
+            args: vec!["127.0.0.1".to_string(), "6005".to_string()],
+            env: Default::default(),
+        })
+    }
+}
+
+zed::register_extension!(GDScriptExtension);