Gulp bump minor number for ionic

If you need a full blown approach for bumping your version numbers then there is a robust set of build tools by Robert Shedd 

https://github.com/shedd/ionic_build_tools#bump-app-versions

His build tools provide more than just gulp commands, the readme alone can save you time and help you avoid mistakes.

However, I just needed something simple for bumping version numbers in package.json and config.xml.

Extra NPM packages

• npm install gulp-xml-editor --save-dev
• npm install gulp-json-transform --save-dev 

Requires

• var jsonTransform = require('gulp-json-transform');
• var xeditor = require('gulp-xml-editor');

Gulp Task

gulp.task( 'package', ['sass'], function(){

gulp.src('./package.json')

.pipe( jsonTransform(function(data){

var version = data.version.split('.');

version[2]++;

data.version = version.join('.');

return data;

},2))

.pipe(gulp.dest('.'));

gulp.src("./config.xml")

.pipe(xeditor(function(xml, xmljs) {

var version = xml.root().attr('version').value().split('.');

version[2]++;

  xml.root().attr('version',version.join('.'));

  return xml;

}))

 .pipe(gulp.dest("."));

});