From 8fe20b19d4702fc6d6933c31abddc8539d2581f0 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 6 Apr 2021 14:16:35 +0300
Subject: More robust status notifications

---
 editors/code/src/client.ts  |  2 +-
 editors/code/src/ctx.ts     | 47 +++++++++++++++++----------------------------
 editors/code/src/lsp_ext.ts |  9 +++++----
 3 files changed, 24 insertions(+), 34 deletions(-)

(limited to 'editors')

diff --git a/editors/code/src/client.ts b/editors/code/src/client.ts
index 0771ca3b6..116f41df6 100644
--- a/editors/code/src/client.ts
+++ b/editors/code/src/client.ts
@@ -159,7 +159,7 @@ class ExperimentalFeatures implements lc.StaticFeature {
         caps.snippetTextEdit = true;
         caps.codeActionGroup = true;
         caps.hoverActions = true;
-        caps.statusNotification = true;
+        caps.serverStatusNotification = true;
         capabilities.experimental = caps;
     }
     initialize(_capabilities: lc.ServerCapabilities<any>, _documentSelector: lc.DocumentSelector | undefined): void {
diff --git a/editors/code/src/ctx.ts b/editors/code/src/ctx.ts
index c07583cfa..c05e757f8 100644
--- a/editors/code/src/ctx.ts
+++ b/editors/code/src/ctx.ts
@@ -5,7 +5,7 @@ import * as ra from './lsp_ext';
 import { Config } from './config';
 import { createClient } from './client';
 import { isRustEditor, RustEditor } from './util';
-import { Status } from './lsp_ext';
+import { ServerStatusParams } from './lsp_ext';
 
 export class Ctx {
     private constructor(
@@ -36,7 +36,7 @@ export class Ctx {
 
         res.pushCleanup(client.start());
         await client.onReady();
-        client.onNotification(ra.status, (params) => res.setStatus(params.status));
+        client.onNotification(ra.serverStatus, (params) => res.setServerStatus(params));
         return res;
     }
 
@@ -66,39 +66,28 @@ export class Ctx {
         return this.extCtx.subscriptions;
     }
 
-    setStatus(status: Status) {
-        switch (status) {
-            case "loading":
-                this.statusBar.text = "$(sync~spin) rust-analyzer";
-                this.statusBar.tooltip = "Loading the project";
-                this.statusBar.command = undefined;
+    setServerStatus(status: ServerStatusParams) {
+        this.statusBar.tooltip = status.message ?? "Ready";
+        let icon = "";
+        switch (status.health) {
+            case "ok":
                 this.statusBar.color = undefined;
                 break;
-            case "readyPartial":
-                this.statusBar.text = "rust-analyzer";
-                this.statusBar.tooltip = "Ready (Partial)";
-                this.statusBar.command = undefined;
-                this.statusBar.color = undefined;
-                break;
-            case "ready":
-                this.statusBar.text = "rust-analyzer";
-                this.statusBar.tooltip = "Ready";
-                this.statusBar.command = undefined;
-                this.statusBar.color = undefined;
-                break;
-            case "invalid":
-                this.statusBar.text = "$(error) rust-analyzer";
-                this.statusBar.tooltip = "Failed to load the project";
-                this.statusBar.command = undefined;
-                this.statusBar.color = new vscode.ThemeColor("notificationsErrorIcon.foreground");
-                break;
-            case "needsReload":
-                this.statusBar.text = "$(warning) rust-analyzer";
-                this.statusBar.tooltip = "Click to reload";
+            case "warning":
+                this.statusBar.tooltip += "\nClick to reload."
                 this.statusBar.command = "rust-analyzer.reloadWorkspace";
                 this.statusBar.color = new vscode.ThemeColor("notificationsWarningIcon.foreground");
+                icon = "$(warning) ";
+                break;
+            case "error":
+                this.statusBar.tooltip += "\nClick to reload."
+                this.statusBar.command = "rust-analyzer.reloadWorkspace";
+                this.statusBar.color = new vscode.ThemeColor("notificationsErrorIcon.foreground");
+                icon = "$(error) ";
                 break;
         }
+        if (!status.quiescent) icon = "$(sync~spin) ";
+        this.statusBar.text = `${icon} rust-analyzer`;
     }
 
     pushCleanup(d: Disposable) {
diff --git a/editors/code/src/lsp_ext.ts b/editors/code/src/lsp_ext.ts
index 00e128b8c..2e1744f1b 100644
--- a/editors/code/src/lsp_ext.ts
+++ b/editors/code/src/lsp_ext.ts
@@ -10,11 +10,12 @@ export interface AnalyzerStatusParams {
 export const analyzerStatus = new lc.RequestType<AnalyzerStatusParams, string, void>("rust-analyzer/analyzerStatus");
 export const memoryUsage = new lc.RequestType0<string, void>("rust-analyzer/memoryUsage");
 
-export type Status = "loading" | "ready" | "readyPartial" | "invalid" | "needsReload";
-export interface StatusParams {
-    status: Status;
+export interface ServerStatusParams {
+    health: "ok" | "warning" | "error"
+    quiescent: boolean
+    message?: string
 }
-export const status = new lc.NotificationType<StatusParams>("rust-analyzer/status");
+export const serverStatus = new lc.NotificationType<ServerStatusParams>("experimental/serverStatus");
 
 export const reloadWorkspace = new lc.RequestType0<null, void>("rust-analyzer/reloadWorkspace");
 
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