InstaBlog

Setup

Prerequisites

• Ruby 3.3.5
• PostgreSQL
• Node.js ^20.15.1

Create .env file at the root of the project directory. Copy the content of .env.template.erb to .env then update the username and password based on your database credentials. To send a post feedback email to the blog post author, request SENDGRID_API_KEY from admin/owner or create your own SENDGRID_API_KEY and add single sender verification then update SENDGRID_FROM_EMAIL and SENDGRID_FROM_NAME

Install dependencies and setup database

bin/setup

Populate database with sample data

bin/rake db:populate_sample_data

Start local web server

bin/dev

Go to http://localhost:3000

GitHub Actions, Linting and Security Auditing

GitHub actions are setup to lint and test the application on pushes to main and feature branches. It's also setup to deploy the application on pushes to main

You can also run these actions locally before pushing to see if your run is likely to fail. See the following gems / commands for more info.

• Brakeman - Security audit application code

  bin/brakeman -q -w2

• Brakeman: Ignoring False Positives - Creating and Managing an Ignore File

  bin/brakeman -I -q -w2

• Rubocop Rails Omakase - Ruby Linter

  bin/rubocop

  Note: Some linters like ESLint, Prettier, etc. will automatically run on pre-commit git hook.

Testing

Setup test database

bin/rails db:test:prepare

Default: Run all spec files (i.e., those matching spec/**/*_spec.rb)

bin/rspec

or with --fail-fast option to stop running the test suite on the first failed test. You may add a parameter to tell RSpec to stop running the test suite after N failed tests, for example: --fail-fast=3

bin/rspec --fail-fast

Run all spec files in a single directory (recursively)

bin/rspec spec/models

Run a single spec file

bin/rspec spec/models/post_spec.rb

Run a single example from a spec file (by line number)

bin/rspec spec/models/post_spec.rb:6

Use the plain-English descriptions to generate a report of where the application conforms to (or fails to meet) the spec

bin/rspec --format documentation

bin/rspec --format documentation spec/models/post_spec.rb

See all options for running specs

bin/rspec --help

Code Coverage

SimpleCov is a code coverage analysis tool for Ruby. It uses Ruby's built-in Coverage library to gather code coverage data, but makes processing its results much easier by providing a clean API to filter, group, merge, format, and display those results, giving you a complete code coverage suite that can be set up with just a couple lines of code. SimpleCov/Coverage track covered ruby code, gathering coverage for common templating solutions like erb, slim and haml is not supported.

After running your tests, open coverage/index.html in the browser of your choice. For example, in a Mac Terminal, run the following command from your application's root directory:

open coverage/index.html

in a debian/ubuntu Terminal,

xdg-open coverage/index.html

Note: This guide can help if you're unsure which command your particular operating system requires.