data.maybe/tools/bump-version.js

var pkg = require('../package.json')
var fs = require('fs')

function read(n) {
    return fs.readFileSync(n, 'utf-8')
  }

function write(n, s) {
  return fs.writeFileSync(n, s, 'utf-8')
}

function minor(a) {
  return [a[0], a[1], Number(a[2]) + 1]
}

function feature(a) {
  return [a[0], Number(a[1]) + 1, 0]
}

function major(a) {
  return [Number(a[0]) + 1, 0, 0]
}

function bump(what, version) {
  return what === 'MAJOR' ? major(version) : what === 'FEATURE' ? feature(version) : /* otherwise */
  minor(version)
}


var old_version = pkg.version

pkg.version = bump(process.argv[2], pkg.version.split('.')).join('.')
write('package.json', JSON.stringify(pkg, null, 2))

var readme = read('README.md').replace(/<\!-- \[release:\s*(.+?)\s*\] -->[\s\S]*?<\!-- \[\/release\] -->/, function(_, s) {
  return '<!-- [release: ' + s + '] -->\n' + '[release]: ' + s.replace(/\$VERSION/g, pkg.version) + '\n' + '<!-- [/release] -->'
})
write('README.md', readme)

console.log('Bumped from ' + old_version + ' to ' + pkg.version)