adding extension api for terminal environment variables

Signed-off-by: Jim Ehrismann <jehrismann@mirantis.com>

src/extensions/lens-main-extension.ts

@@ -10,9 +10,11 @@ import type { CatalogEntity } from "../common/catalog";
 import type { IObservableArray } from "mobx";
 import type { MenuRegistration } from "../main/menu/menu-registration";
 import type { TrayMenuRegistration } from "../main/tray/tray-menu-registration";
+import type { ShellEnvVarRegistration } from "../main/shell-session/env-var/env-var-registration";
 export class LensMainExtension extends LensExtension {
   appMenus: MenuRegistration[] = [];
   trayMenus: TrayMenuRegistration[] = [];
+  shellEnvVars: ShellEnvVarRegistration[] = [];
 
   async navigate(pageId?: string, params?: Record<string, any>, frameId?: number) {
     return WindowManager.getInstance().navigateExtension(this.id, pageId, params, frameId);

src/main/shell-session/env-var/env-var-registration.ts

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+
+export interface ShellEnvVarRegistration {
+  title: string;
+  env: Record<string, string>;
+}
+ 

src/main/shell-session/env-var/env-var.injectable.ts

@@ -0,0 +1,19 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+
+import { getInjectable, lifecycleEnum } from "@ogre-tools/injectable";
+import mainExtensionsInjectable from "../../../extensions/main-extensions.injectable";
+import { getShellEnvVars } from "./get-shell-env-vars";
+ 
+const shellEnvVarInjectable = getInjectable({
+  instantiate: (di) =>
+    getShellEnvVars({
+      extensions: di.inject(mainExtensionsInjectable),
+    }),
+ 
+  lifecycle: lifecycleEnum.singleton,
+});
+ 
+export default shellEnvVarInjectable;

src/main/shell-session/env-var/get-shell-env-vars.ts

@@ -0,0 +1,18 @@
+/**
+ * Copyright (c) OpenLens Authors. All rights reserved.
+ * Licensed under MIT License. See LICENSE in root directory for more information.
+ */
+
+import { computed, IComputedValue } from "mobx";
+import type { LensMainExtension } from "../../../extensions/lens-main-extension";
+ 
+interface Dependencies {
+  extensions: IComputedValue<LensMainExtension[]>;
+}
+ 
+export const getShellEnvVars = ({ extensions }: Dependencies) => {
+  return computed(() => (
+    extensions.get()
+      .flatMap((extension) => extension.shellEnvVars)
+  ));
+};