CSSE-490-lab-3

Lab 3: Photo Processing App

Project Setup

Cloning and Installing Dependencies

Make sure you have Ruby 3.1.4 or Ruby 3.2.x installed locally on Windows using WSL or on Mac/Linux. To push to Heroku, you'll also need to install the Heroku CLI). If using Ruby 3.2.x, update the .ruby-version file to match your version of Ruby.

You will also need postgresql installed. On OS X you can install it via brew install postgresql. On Linux/WSL use the instructions in Get started with databases on Windows Subsystem for Linux. Be sure to start the postgres database server once you have installed postgres itself (instructions are printed out via. brew/in the article). On Linux/WSL you will likely need to run apt install libpq-dev in order to install all of the python packages below.

$ git clone <repo url>
$ cd lab-3-<your_github_username>
# NOTE: Bundle will fail if you haven't installed postgres yet
$ bundle

Prepare the database:

$ cp config/database.yml.example config/database.yml
# Update config/database.yml with any username or password information required for your local postgres server
$ rake db:create:all
$ rake db:migrate
$ rake db:environment:set
$ rake db:test:prepare

Running Tests

Run the full test suite with rake or rake test.

Run a single test with rspec spec/path/to_spec.rb:6, replacing rspec/path/to_spec.rb with the path to your actual test, and 6 with the actual line number of the test you are trying to run.

Running Locally

Create the local development databases and load them with the correct schema.

$ rerun rackup

• rerun watches for filesystem changes and restarts your app as needed
• rackup runs rack applications (Sinatra is a rack application)

Your app should now be running on localhost:9292.

Deploying to Heroku

Creating the Heroku application

$ heroku create

# Create the postgres database
$ heroku addons:create heroku-postgresql:mini

$ git push heroku main

$ heroku open

Testing in a local Heroku environment

$ heroku local

Pushing up new updates to the existing application

$ git push heroku main