Gulp task to upload and deploy to ionic with metadata.

gulp-ionic-deploy.js

gulp.task('deploy', function () {
  runSequence(
    'ionic-password',
//     'bump-build',
//     ['clean'],
//     ['jshint', 'sass', 'config', 'templates'],
//     'bundle',
//     'index',
//     'clean-index',
//     'copy',
    'ionic-upload',
    'ionic-deploy'
  );
});

gulp.task('ionic-upload', ['ionic-password'], function () {
  delete require.cache['../package.json'];
  var package = require('../package.json');

  execSync(`ionic upload -e "${ env_private.ionic_email }" -p ${argv.password} --note ${package.version}`, {stdio: [0,1,2]});
  return gulp.src('./', {read: false});
});

gulp.task('ionic-password', function () {
  if ( !argv.password ){
    return gulp.src('./', {read: false})
      .pipe(prompt.prompt({
        type: 'password',
        message: `Enter ionic cloud password for ${ env_private.ionic_email }`,
        name: 'password'
      }, function (result) {
        argv.password = result.password;
      }));
  }
  return gulp.src('./', {read: false});
});

gulp.task('ionic-deploy', function (done) {
  var package = require('../package.json');
  var token = require('../private.json').ionic_token;
  var channel, channelTag = argv.channel || 'dev';
  var snapshot;

  var ionicClient = axios.create();
  ionicClient.defaults.headers.common.Authorization = `Bearer ${token}`;
  ionicClient.defaults.headers.post['Content-Type'] = 'application/json';
  ionicClient.defaults.headers.patch['Content-Type'] = 'application/json';
  Error.stackTraceLimit = 100;

  ionicClient.get(`https://api.ionic.io/deploy/channels/${channelTag}`)
    .then(response => {
      channel = response.data.data.uuid;
      return ionicClient.get('https://api.ionic.io/deploy/snapshots', {
        params: {
            page_size: 5000
          }
      });
    })
    .then(response => {
      if ( !response.data.data.length ){ return Promise.reject('No snapshots found'); }
      snapshot = _.sortBy(response.data.data, 'created').reverse().shift();
      console.log(`Fetching snapshot ${snapshot}`);
      return ionicClient.get(`https://api.ionic.io/deploy/snapshots/${snapshot.uuid}`);
    })
    .then(response => {
      var snapshotMeta = response.data.data;
      if (  snapshotMeta.note !== package.version ){
        console.log(`Got version ${snapshotMeta.note}, expecting version ${package.version}`)
        return Promise.reject('Aborted. Retreived wrong snapshot.');
      }
      var meta_data = _.extend(snapshotMeta.user_metadata, {
        version: package.version,
        created: snapshot.created
      });
      return ionicClient.patch(`https://api.ionic.io/deploy/snapshots/${snapshotMeta.uuid}`, {
        user_metadata: meta_data
      });
    })
    .then(response => {
      console.log(`Deploying ${response.data.data.uuid} to channel ${channelTag}`);
      return ionicClient.post('https://api.ionic.io/deploy/deploys', {
        channel: channel,
        snapshot: response.data.data.uuid
      });
    })
    .then(() => {
      console.log('Snapshot meta data sucessfully updated');
      done();
    })
    .catch(err => {
      console.error(`Failed to set snapshot meta data. ${err}.`);
      if ( err.response ){
        console.log(err.response.data);
        console.log(err.response.status);
        console.log(err.response.headers);
        console.log(err.config.url);
      }
      done();
    });
})

Thanks, this is useful! A sidenote: depending on usage, one might want to prepend something like this:

var gulp = require('gulp');
var runSequence = require('run-sequence');
var argv = require('yargs').argv;
var prompt = require('gulp-prompt');
var axios = require('axios');
var env_private = process.env;
var execSync = require('child_process').execSync;
var _ = require('lodash');

private.json i have to create it for access ionic_token?