Back out @lib indirection in tsconfig.json (#111)

codex-cli/src/format-command.ts

@@ -0,0 +1,53 @@
+import { quote } from "shell-quote";
+
+/**
+ * Format the args of an exec command for display as a single string. Prefer
+ * this to doing `args.join(" ")` as this will handle quoting and escaping
+ * correctly. See unit test for details.
+ */
+export function formatCommandForDisplay(command: Array<string>): string {
+  // The model often wraps arbitrary shell commands in an invocation that looks
+  // like:
+  //
+  //   ["bash", "-lc", "'<actual command>'"]
+  //
+  // When displaying these back to the user, we do NOT want to show the
+  // boiler‑plate "bash -lc" wrapper. Instead, we want to surface only the
+  // actual command that bash will evaluate.
+
+  // Historically we detected this by first quoting the entire command array
+  // with `shell‑quote` and then using a regular expression to peel off the
+  // `bash -lc '…'` prefix. However, that approach was brittle (it depended on
+  // the exact quoting behavior of `shell-quote`) and unnecessarily
+  // inefficient.
+
+  // A simpler and more robust approach is to look at the raw command array
+  // itself. If it matches the shape produced by our exec helpers—exactly three
+  // entries where the first two are «bash» and «-lc»—then we can return the
+  // third entry directly (after stripping surrounding single quotes if they
+  // are present).
+
+  try {
+    if (
+      command.length === 3 &&
+      command[0] === "bash" &&
+      command[1] === "-lc" &&
+      typeof command[2] === "string"
+    ) {
+      let inner = command[2];
+
+      // Some callers wrap the actual command in single quotes (e.g. `'echo foo'`).
+      // For display purposes we want to drop those outer quotes so that the
+      // rendered command looks exactly like what the user typed.
+      if (inner.startsWith("'") && inner.endsWith("'")) {
+        inner = inner.slice(1, -1);
+      }
+
+      return inner;
+    }
+
+    return quote(command);
+  } catch (err) {
+    return command.join(" ");
+  }
+}