Add hot reload to the extension (#14)

Co-authored-by: amylizzle <[email protected]>
Co-authored-by: wixoa <[email protected]>

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "opendream",
-	"version": "0.2.2",
+	"version": "0.2.3",
 	"displayName": "OpenDream Dev Tools",
 	"icon": "OD.png",
 	"description": "Developer tools for OpenDream",
@@ -39,6 +39,11 @@
 					"type": "string",
 					"default": null,
 					"description": "Path to your copy of the OpenDream source code. This should be the top level folder containing OpenDream.sln. Leave empty to use pre-compiled binaries instead."
+				},
+				"opendream.hotReload": {
+					"type": "boolean",
+					"default": true,
+					"description": "Automatically reload resources when they're changed on disk."
 				}
 			}
 		},

src/extension.ts

@@ -106,7 +106,8 @@ export async function activate(context: ExtensionContext) {
 			let buildClientPromise = openDream.buildClient(session.workspaceFolder);
 			// Wait for the OD server to connect back to us, then stop listening.
 			let socket = await socketPromise;
-			return new vscode.DebugAdapterInlineImplementation(new OpenDreamDebugAdapter(socket, buildClientPromise));
+			let hotReloadEnable:boolean = workspace.getConfiguration('opendream').get('hotReload') || false;
+			return new vscode.DebugAdapterInlineImplementation(new OpenDreamDebugAdapter(socket, buildClientPromise, hotReloadEnable));
 		}
 	}));
 
@@ -162,12 +163,14 @@ class OpenDreamDebugAdapter implements vscode.DebugAdapter {
 
 	private socket: net.Socket;
 	private buffer = Buffer.alloc(0);
+	private resourceWatcher?: vscode.FileSystemWatcher
+	private interfaceWatcher?: vscode.FileSystemWatcher
 
 	private didSendMessageEmitter = new vscode.EventEmitter<DebugProtocolMessage>();
 	private sendMessageToEditor = this.didSendMessageEmitter.fire.bind(this.didSendMessageEmitter);
 	onDidSendMessage = this.didSendMessageEmitter.event;
 
-	constructor(socket: net.Socket, buildClientPromise?: Promise<ODClient>) {
+	constructor(socket: net.Socket, buildClientPromise?: Promise<ODClient>, hotReloadAuto?: boolean) {
 		this.socket = socket;
 		this.buildClientPromise = buildClientPromise;
 
@@ -216,6 +219,29 @@ class OpenDreamDebugAdapter implements vscode.DebugAdapter {
 				headerEnd = this.buffer.indexOf('\r\n\r\n');
 			}
 		});
+
+		if(hotReloadAuto) {
+			this.resourceWatcher = vscode.workspace.createFileSystemWatcher(("**/*.{dmi,png,jpg,rsi,gif,bmp}"))//TODO all the sound file formats?
+			this.interfaceWatcher = vscode.workspace.createFileSystemWatcher(("**/*.{dmf}"))
+
+			this.interfaceWatcher.onDidChange(() => {this.hotReloadInterface()})
+			this.interfaceWatcher.onDidCreate(() => {this.hotReloadInterface()})
+			this.interfaceWatcher.onDidDelete(() => {this.hotReloadInterface()})
+
+			this.resourceWatcher.onDidChange((file) => {this.hotReloadResource(file)})
+			this.resourceWatcher.onDidCreate((file) => {this.hotReloadResource(file)})
+			this.resourceWatcher.onDidDelete((file) => {this.hotReloadResource(file)})
+		}
+	}
+
+	private hotReloadInterface(): void {
+		console.log("Hot reloading interface")
+		this.sendMessageToGame({ type: 'request', command: 'hotreloadinterface'})
+	}
+
+	private hotReloadResource(resource:vscode.Uri) {
+		console.log(`Hot reloading resource ${resource.fsPath}`)
+		this.sendMessageToGame({ type: 'request', command: 'hotreloadresource', arguments: {'file':resource.fsPath}})
 	}
 
 	handleMessage(message: any): void {
@@ -245,6 +271,8 @@ class OpenDreamDebugAdapter implements vscode.DebugAdapter {
 	}
 
 	dispose() {
+		this.resourceWatcher?.dispose()
+		this.interfaceWatcher?.dispose()
 		this.socket.destroy();
 		this.didSendMessageEmitter.dispose();
 	}