Add more instructions for local dependencies

docs/developer_setup.md

@@ -1,49 +1,117 @@
-## Dependencies
-
-Pre-requisites:
-
-- Ruby 3.1
-- Rails 7
-- Postgres 13
-- Node 16
-
-### Quick start
+# **Developing locally on host machine**
+
+The most common way to run a development version of the application is run with local dependencies.
+
+Dependencies:
+
+- Ruby
+- Rails
+- PostgreSQL
+- NodeJS
+- Gecko driver (https://github.com/mozilla/geckodriver/releases) [for running Selenium tests]
+
+We recommend using RBenv to manage Ruby versions.
+
+1. Install PostgreSQL
+
+  Mac OS:
+  ```bash
+  brew install postgresql
+  brew services start postgresql
+  ```
+
+  Linux (Debian):
+  ```bash
+  sudo apt install -y postgresql postgresql-contrib libpq-dev
+  sudo systemctl start postgresql
+  ```
+
+2. Create a Postgres user
+  ```bash
+  sudo su - postgres -c "createuser <username> -P"
+  ```
+
+3. Install RBenv & Ruby-build
+
+  Mac OS:
+  ```bash
+  brew install rbenv
+  rbenv init
+  mkdir -p ~/.rbenv/plugins
+  git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
+  ```
+
+  Linux (Debian):
+  ```bash
+  sudo apt install -y rbenv
+  echo 'export PATH="/usr/local/rbenv/bin:\$PATH"' >> ~/.bashrc
+  rbenv init
+  echo "# Load RBenv" >> ~/.bashrc
+  echo 'eval "$(rbenv init -)"' >> ~/.bashrc
+  mkdir -p ~/.rbenv/plugins
+  git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
+  ```
+
+4. Install Ruby & Bundler
+
+  ```bash
+  rbenv install 3.1.2
+  rbenv global 3.1.2
+  gem install bundler
+  ```
+
+5. Install Javascript depenencies
+
+  Mac OS:
+  ```bash
+  brew install node
+  brew install yarn
+  ```
+
+  Linux (Debian):
+  ```bash
+  curl -sL https://deb.nodesource.com/setup_16.x | bash -
+  sudo apt -y install nodejs
+  mkdir "~/.npm-packages"
+  npm config set prefix "~/.npm-packages"
+  echo 'NPM_PACKAGES="~/.npm-packages"' >> ~/.bashrc
+  echo 'export PATH="$PATH:$NPM_PACKAGES/bin"' >> ~/.bashrc
+  npm install --global yarn
+  ```
+
+6. Clone the repo
+  ```bash
+  git clone git@github.com:communitiesuk/submit-social-housing-lettings-and-sales-data.git
+  ```
+
+
+## App setup (OS agnostic)
 
 1. Copy the `.env.example` to `.env` and replace the database credentials with your local postgres user credentials.
 
 2. Install the dependencies:\
-  `bundle install`
-
-3. Create the database:\
-  `rake db:create`
+  `bundle install && yarn install`
 
-4. Run the database migrations:\
-  `rake db:migrate`
+3. Create the database & run migrations:\
+  `rake db:create db:migrate`
 
-5. Seed the database if required:\
-`rake db:seed`
+4. Seed the database if required:\
+  `rake db:seed`
 
-6. Seed the database with rent ranges if required (~7000 rows per year):\
-`rake "data_import:rent_ranges[<start_year>,<rent_ranges_path>]"`
+5. Start the dev servers
 
-    For 2021-2022 ranges run:\
-    `rake "data_import:rent_ranges[2021,config/rent_range_data/2021.csv]"`
-
-7. Install the frontend depenencies:\
-  `yarn install`
-
-8. Start the dev servers using foreman:\
+  a. Using foreman:\
   `./bin/dev`
 
-  Or start them individually:\
+  b. Individually:\
 
-  a. Rails:\
+    i. Rails:\
     `bundle exec rails s`
 
-  b. JS (for hot reloading):\
+    ii. JS (for hot reloading):\
     `yarn build --mode=development --watch`
 
-If you're not modifying front end assets you can bundle them as a one off task:\
+  If you're not modifying front end assets you can bundle them as a one off task:\
     `yarn build --mode=development`
 
 Development mode will target the latest versions of Chrome, Firefox and Safari for transpilation while production mode will target older browsers.
@@ -53,7 +121,9 @@ The Rails server will start on <http://localhost:3000>.
 Running the test suite (front end assets need to be built or server needs to be running):\
   `bundle exec rspec`
 
-### Using Docker
+
+# **Using Docker**
+
 
 1. Build the image:\
 `docker-compose build`