initial commit

crates/djls/src/main.rs

@@ -0,0 +1,50 @@
+use anyhow::Result;
+use tower_lsp::jsonrpc::Result as LspResult;
+use tower_lsp::lsp_types::*;
+use tower_lsp::{Client, LanguageServer, LspService, Server};
+
+#[derive(Debug)]
+struct Backend {
+    client: Client,
+}
+
+#[tower_lsp::async_trait]
+impl LanguageServer for Backend {
+    async fn initialize(&self, _params: InitializeParams) -> LspResult<InitializeResult> {
+        Ok(InitializeResult {
+            capabilities: ServerCapabilities {
+                text_document_sync: Some(TextDocumentSyncCapability::Kind(
+                    TextDocumentSyncKind::INCREMENTAL,
+                )),
+                ..Default::default()
+            },
+            offset_encoding: None,
+            server_info: Some(ServerInfo {
+                name: String::from("Django Language Server"),
+                version: Some(String::from("0.1.0")),
+            }),
+        })
+    }
+
+    async fn initialized(&self, _: InitializedParams) {
+        self.client
+            .log_message(MessageType::INFO, "server initialized!")
+            .await;
+    }
+
+    async fn shutdown(&self) -> LspResult<()> {
+        Ok(())
+    }
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    let stdin = tokio::io::stdin();
+    let stdout = tokio::io::stdout();
+
+    let (service, socket) = LspService::build(|client| Backend { client }).finish();
+
+    Server::new(stdin, stdout, socket).serve(service).await;
+
+    Ok(())
+}