sample of fs-db in node

bare-repo.js

var fs = require('fs');
var dirname = require('path').dirname;

var repo = {
  rootPath: pathJoin(__dirname, "repo.git")
};
require('js-git/mixins/fs-db')(repo, {
  readFile: function (path, callback) {
    fs.readFile(path, function (err, buffer) {
      if (err) {
        if (err.code === "ENOENT") return callback();
        return callback(err);
      }
      callback(null, buffer);
    });
  },
  writeFile: function (path, buffer, callback) {
    mkdirp(dirname(path), function (err) {
      if (err) return callback(err);
      fs.writeFile(path, buffer, callback);
    });
  },
  readDir: function (path, callback) {
    fs.readdir(path, function (err, results) {
      if (err) {
        if (err.code === "ENOENT") return callback();
        return callback(err);
      }
      return callback(null, results);
    });
  },
  readChunk: function (path, start, end, callback) {
    throw "TODO: Implement this to read packfiles"
    // I didn't need it for my node server since I create the repos.
    // This should return a Buffer for the file from start to end offsets.
  }
});

function mkdirp(path, callback) {
  fs.mkdir(path, function (err) {
    if (err) {
      if (err.code === "ENOENT") return mkdirp(dirname(path), function (err) {
        if (err) return callback(err);
        fs.mkdir(path, callback);
      });
      if (err.code === "EEXIST") return callback();
      return callback(err);
    }
    callback();
  });
}