renovate/lib/modules/manager/mix/range.ts

import { parseRange } from 'semver-utils';
import { logger } from '../../../logger/index.ts';
import type { RangeStrategy } from '../../../types/index.ts';
import type { RangeConfig } from '../types.ts';

export function getRangeStrategy(config: RangeConfig): RangeStrategy {
  const { currentValue, rangeStrategy } = config;
  const isComplexRange = currentValue
    ? parseRange(currentValue).length > 1
    : false;

  if (rangeStrategy === 'bump' && isComplexRange) {
    logger.debug(
      { currentValue },
      'Replacing bump strategy for complex range with widen',
    );
    return 'widen';
  }
  if (rangeStrategy !== 'auto') {
    return rangeStrategy!;
  }
  if (isComplexRange) {
    return 'widen';
  }
  return 'update-lockfile';
}