1  import type { Preprocessor } from 'knip';
 2  
 3  const preprocess: Preprocessor = (options) => {
 4    Object.keys(options.issues.exports).forEach((file) => {
 5      // Ignore unused exports from files starting with "oss_" because they are used in
 6      // the OSS version. This may overmatch some files that are actually unused in the
 7      // OSS version but it's hard to check the OSS version in our current setup so it's
 8      // fine to be conservative.
 9      if (file.includes('oss_')) {
10        // Reduce `exports` counter since the exit code is based on it.
11        options.counters.exports -= Object.keys(options.issues.exports[file]).length;
12        delete options.issues.exports[file];
13        return;
14      }
15      Object.keys(options.issues.exports[file]).forEach((exportIdentifier) => {
16        // Ignore unused exports including "oss_" because they are used in the OSS
17        // version. See above comment for explanation on why we are being conservative.
18        if (exportIdentifier.includes('oss_')) {
19          // Reduce `exports` counter since the exit code is based on it.
20          options.counters.exports -= 1;
21          delete options.issues.exports[file][exportIdentifier];
22        }
23      });
24    });
25    return options;
26  };
27  
28  export default preprocess;