Merge #1153

1153: "Restart server" command r=jrvidal a=jrvidal

The only tricky aspect is that fact that once the `exit` command has been received, we no longer need to join on the reader thread. 

Also, I think `terminateProcesses.sh` was not working properly. In fact, the very same script from the vscode language server implementation is not working either! It's because of that I noticed the reader thread issue :open_mouth: 

Co-authored-by: Roberto Vidal <[email protected]>

2 files changed, 14 insertions, 1 deletions

diff --git a/editors/code/src/extension.ts b/editors/code/src/extension.ts
index ef83c0b8b..1073a36a0 100644
--- a/editors/code/src/extension.ts
+++ b/editors/code/src/extension.ts
@@ -120,11 +120,16 @@ export function activate(context: vscode.ExtensionContext) {
         context.subscriptions
     );
 
+    const startServer = () => Server.start(allNotifications);
+    const reloadCommand = () => reloadServer(startServer);
+
+    vscode.commands.registerCommand('rust-analyzer.reload', reloadCommand);
+
     // Executing `cargo watch` provides us with inline diagnostics on save
     interactivelyStartCargoWatch(context);
 
     // Start the language server, finally!
-    Server.start(allNotifications);
+    startServer();
 }
 
 export function deactivate(): Thenable<void> {
@@ -133,3 +138,11 @@ export function deactivate(): Thenable<void> {
     }
     return Server.client.stop();
 }
+
+async function reloadServer(startServer: () => void) {
+    if (Server.client != null) {
+        vscode.window.showInformationMessage('Reloading rust-analyzer...');
+        await Server.client.stop();
+        startServer();
+    }
+}
diff --git a/editors/code/src/utils/terminateProcess.sh b/editors/code/src/utils/terminateProcess.sh
index 2ec9e1c2e..2ec9e1c2e 100644..100755
--- a/editors/code/src/utils/terminateProcess.sh
+++ b/editors/code/src/utils/terminateProcess.sh