first commit

src/paths.ts

@@ -0,0 +1,13 @@
+import os from "node:os";
+import path from "node:path";
+
+export function expandPath(input: string, baseDirectory: string): string {
+  const expanded = input === "~"
+    ? os.homedir()
+    : input.startsWith("~/")
+      ? path.join(os.homedir(), input.slice(2))
+      : input;
+  return path.isAbsolute(expanded)
+    ? path.normalize(expanded)
+    : path.resolve(baseDirectory, expanded);
+}