Close Lens Proxy on quit of backend (#7453)

- Extract global shared state of shell sessions

Signed-off-by: Sebastian Malton <sebastian@malton.name>

packages/core/src/main/start-main-application/runnables/clean-up-shell-sessions.injectable.ts

@@ -4,13 +4,31 @@
  */
 import { getInjectable } from "@ogre-tools/injectable";
 import { beforeQuitOfBackEndInjectionToken } from "../runnable-tokens/phases";
-import { ShellSession } from "../../shell-session/shell-session";
+import shellSessionProcessesInjectable from "../../shell-session/processes.injectable";
+import prefixedLoggerInjectable from "../../../common/logger/prefixed-logger.injectable";
 
 const cleanUpShellSessionsInjectable = getInjectable({
   id: "clean-up-shell-sessions",
 
-  instantiate: () => ({
-    run: () => void ShellSession.cleanup(),
+  instantiate: (di) => ({
+    run: () => {
+      const shellSessionProcesses = di.inject(shellSessionProcessesInjectable);
+      const logger = di.inject(prefixedLoggerInjectable, "SHELL-SESSIONS");
+
+      logger.info("Killing all remaining shell sessions");
+
+      for (const { pid } of shellSessionProcesses.values()) {
+        try {
+          process.kill(pid);
+        } catch {
+          // ignore error
+        }
+      }
+
+      shellSessionProcesses.clear();
+
+      return undefined;
+    },
   }),
 
   injectionToken: beforeQuitOfBackEndInjectionToken,