There's only a few steps you have to do in order to run the application. It implies you have installed all necessary tools for building Ionic project (android/ios sdk, ionic, cordova, node, git ...) which is not covered in this topic. Also, you have to be in root project directory when executing the following commands.
Clone git repository
$ git clone https://github.com/lucianobapo/ionic-delivery24horas.git
Install dependencies
$ npm install
$ gulp install
npm install
command installs all dependencies listed in package.json file, required for runnung Gulp tasks.
gulp install
command installs ionic javascript files and it's dependencies (angular scripts) from repository listed in bower.json file. This way we don't have to manually download and include all ionic scripts in the project, but only point to Ionic github repository. Gulp task will take care for the rest.
Add platform
$ ionic platform add android/ios
Build application
ionic build android/ios [--release] [--production]
--production flag means that application will be shipped with minified and uglified javascript/css assets and optimized for production. Unnecessary files will be deleted and excluded from executable file (.apk/.ipa) so the application will be smaller size when uploading on Google play and Apple store. Also, the app version will be automatically increased by one (only the patch number e.g. 0.0.1 --> 0.0.2).
Run application in emulator
$ ionic emulate android/ios
Run application in browser
$ ionic serve [--nolivereload]
--nolivereload flag disables browser to be reloaded after every change made in the code. This helps Gulp watch task to build and bundle all assets into single file but you'll have to reload browser manually.