dart_script_runner/lib/base.dart

import 'config.dart';
import 'utils.dart';

/// Runs a script with the given name, and any extra arguments.
/// Returns the exit code.
Future<int> runScript(String entryName, List<String> args) async {
  final config = await ScriptRunnerConfig.get();

  if (config.scripts.isEmpty) {
    throw ScriptNotFoundError('No scripts found');
  }

  if (['-h', '--help'].contains(entryName)) {
    config.printUsage();
    return 0;
  }

  if (['-ls', '--list'].contains(entryName)) {
    final search = args.isNotEmpty ? args.first : '';
    config.printScripts(search);
    return 0;
  }

  final entry = config.scriptsMap[entryName];

  if (entry == null) {
    final suggestions = config.scriptsMap.keys
        .where((key) => key.toLowerCase().startsWith(entryName.toLowerCase()))
        .toList();

    if (suggestions.isNotEmpty) {
      if (suggestions.length == 1) {
        throw ScriptNotFoundError(
          'No script named "$entryName" found. Did you mean "${suggestions.single}"?',
        );
      } else {
        throw ScriptNotFoundError(
          'No script named "$entryName" found.\n'
          'Did you mean one of: "${suggestions.join('", "')}"?',
        );
      }
    } else {
      throw ScriptNotFoundError(
        'No script named "$entryName" found.\n'
        'Available scripts: ${config.scriptsMap.keys.join('", "')}',
      );
    }
  }

  try {
    return entry.run(args);
  } catch (e, stack) {
    throw ScriptError('Error running script "$entryName": $e\n$stack');
  }
}