Single-level tree walker for js-git

find-prev.js

//assumes that the hash you want and the repo are obtainable via closure scope

function findPrevious(commit, previousCommit) {
  repo.load(commit.parents[0], function (err, obj) {
    if (obj.type !== 'commit') {
      console.error(obj);
      throw 'Unexpected type returned';
    }
    repo.load(obj.body.tree, function (err, tree) {
      if (tree.type !== 'tree') {
        console.error(tree);
        throw 'Object is not a tree';
      }
      var match = tree.body.filter(function (obj) { return obj.hash == hash; });
      if (match.length) {
        console.dir(match);
        findPrevious(obj.body, commit);
      } else {
        console.log('we have a winner!');
        console.dir(obj);
      }
    })
  });
}