add dummy cmd

src/cli/cmd-ls.ts

@@ -0,0 +1,27 @@
+import { Command } from "@commander-js/extra-typings";
+import { Logger } from "npmlog";
+import type { DebugLog } from "../domain/logging";
+import type { ReadTextFile } from "../io/fs";
+import { withErrorLogger } from "./error-logging";
+
+/**
+ * Makes the `openupm ls` cli command with the given dependencies.
+ * @param readTextFile IO function for reading a text file.
+ * @param debugLog IO function for debug-logs.
+ * @param log Logger for cli output.
+ * @returns The command.
+ */
+export function makeLsCmd(
+  readTextFile: ReadTextFile,
+  debugLog: DebugLog,
+  log: Logger
+) {
+  return new Command("ls")
+    .aliases(["list"])
+    .summary("list all currently installed packages")
+    .description(
+      `Print the names and versions of all installed packages.
+openupm ls`
+    )
+    .action(withErrorLogger(log, async function (options) {}));
+}

src/cli/index.ts

@@ -15,6 +15,7 @@ import { fetchCheckUrlExists } from "../io/www";
 import { makeAddCmd } from "./cmd-add";
 import { makeDepsCmd } from "./cmd-deps";
 import { makeLoginCmd } from "./cmd-login";
+import { makeLsCmd } from "./cmd-ls";
 import { makeRemoveCmd } from "./cmd-remove";
 import { makeSearchCmd } from "./cmd-search";
 import { makeViewCmd } from "./cmd-view";
@@ -114,6 +115,8 @@ export function makeOpenupmCli(
     )
   );
 
+  program.addCommand(makeLsCmd(readTextFile, debugLog, log));
+
   // prompt for invalid command
   program.on("command:*", function () {
     log.warn("", `unknown command: ${program.args.join(" ")}`);