pauls-dat-api/dist/lookup.js

Library of functions that make working with dat / hyperdrive easier.

'use strict';var _require = require('./common'),maybe = _require.maybe,toBeakerError = _require.toBeakerError;

// lookup information about a file
function stat(archive, name, cb) {
  return maybe(cb, new Promise(function (resolve, reject) {
    // run stat operation
    archive.stat(name, function (err, st) {
      if (err) reject(toBeakerError(err, 'stat'));else
      {
        // read download status
        st.downloaded = 0;
        if (!archive.key) {
          // fs, not an archive
          st.downloaded = st.blocks;
        } else if (st.isFile()) {
          if (archive.content && archive.content.length) {
            st.downloaded = archive.content.downloaded(st.offset, st.offset + st.blocks);
          }
        }
        resolve(st);
      }
    });
  }));
}

module.exports = { stat };