backup your nvAlt file to github as gists

nvgist.js

// backup your nvAlt file to github as gists
// uses openmeta (https://code.google.com/p/openmeta/)

'use strict';

var ChildProcess = require('child_process');
var gaze = require('gaze');
var GitHubApi = require('github');
var fs = require('fs');
var _ = require('lodash');

var github = new GitHubApi({
    // required
    version: '3.0.0'
});

github.authenticate({
    type: 'oauth',
    token: YOUR_ACCESS_TOKEN
});

gaze('*.txt', function(err, watcher) {
  this.on('changed', _.debounce(handleFile, 60000));
  this.on('added', _.debounce(handleFile, 60000));
});

function handleFile(filepath) {
  readTags(filepath, function (tags) {
    var filename = filepath.match(/^\/.*\/(.*\..*)$/);
    if (filename && filename[1]) filename = filename[1];
    var file = fs.readFileSync(filepath).toString();
    var lines = file.split('\n');
    var description = lines.shift();
    var contents = lines.join('\n') || '';
    tags = tags.filter(function (tag) {
      if (tag.match(/^[a-f0-9]{16,}$/)) return true;
    });
    if (tags.length) {
      return updateGist(tags[0], filename, description, contents, function (err, result) {
        if (err) return console.log(err);
        console.log('Gist ' + result.id + ' updated!');
      });
    }
    createGist(filename, description, contents, function (err, result) {
      if (err) return console.log(err);
      addTag(filepath, result.id, function () {
        console.log('Gist ' + result.id + ' created!');
      });
    });
  });
}

function createGist(filename, description, contents, cb) {
  var gist = {
    description: description,
    public: false,
    files: {}
  };
  gist.files[filename] = {
    content: contents
  };
  console.log(gist.files);
  github.gists.create(gist, cb);
}

function updateGist(id, filename, description, contents, cb) {
  var gist = {
    id: id,
    description: description,
    public: false,
    files: {}
  };
  gist.files[filename] = {
    content: contents
  };
  github.gists.edit(gist, cb);
}

function addTag(filepath, tag, cb) {
  var openmeta = ChildProcess.spawn('./openmeta', ['-a', tag, '-p', filepath]);
  openmeta.stdout.on('data', function () {
    cb();
  });
}

function readTags(filepath, cb) {
  var openmeta = ChildProcess.spawn('./openmeta', ['-t', '-p', filepath]);
  openmeta.on('error', function (err) {
    console.log(err);
  });
  openmeta.stderr.on('data', function (data) {
    console.log('stdout: ' + data);
  });
  openmeta.stdout.on('data', function (data) {
    data = data.toString();
    var tags = data.match(/^(.*)\s\/.*/);
    if (tags && tags[1]) return cb(tags[1].split(' '));
    return cb([]);
  });
}