fix: correctly parse positional arguments (#16)

Co-authored-by: Sebastiaan van Arkens <[email protected]>

Author: eskydar

src/args.ts

@@ -26,11 +26,13 @@ export function parseArgs(rawArgs: string[], argsDef: ArgsDef): ParsedArgs {
   }
 
   const parsed = parseRawArgs(rawArgs, parseOptions);
+  const [, ...positionalArguments] = parsed._;
 
-  for (const [i, arg] of args.entries()) {
+  for (const [, arg] of args.entries()) {
     if (arg.type === "positional") {
-      if (parsed._[i] !== undefined) {
-        parsed[arg.name] = parsed._[i];
+      const nextPositionalArgument = positionalArguments.shift();
+      if (nextPositionalArgument !== undefined) {
+        parsed[arg.name] = nextPositionalArgument;
       } else if (arg.default !== undefined) {
         parsed[arg.name] = arg.default;
       } else {

src/command.ts

@@ -31,7 +31,7 @@ export async function runCommand(
 
   // Handle sub command
   const subCommands = await resolveValue(cmd.subCommands);
-  if (subCommands && Object.keys(subCommands.length > 0)) {
+  if (subCommands && Object.keys(subCommands).length > 0) {
     const subCommandArgIndex = opts.rawArgs.findIndex(
       (arg) => !arg.startsWith("-")
     );
@@ -68,7 +68,7 @@ export async function resolveSubCommand(
   parent?: CommandDef
 ): Promise<[CommandDef, CommandDef?]> {
   const subCommands = await resolveValue(cmd.subCommands);
-  if (subCommands && Object.keys(subCommands.length > 0)) {
+  if (subCommands && Object.keys(subCommands).length > 0) {
     const subCommandArgIndex = rawArgs.findIndex((arg) => !arg.startsWith("-"));
     const subCommandName = rawArgs[subCommandArgIndex];
     const subCommand = await resolveValue(subCommands[subCommandName]);