markdown Mac OS X Rails开发环境设置

Posted 2021-05-06

# Mac OS X Rails Dev Environment Setup

**Prerequisite:** Be sure to have the latest Xcode installed before proceeding.

 ## Install Homebrew
 
Homebrew is the defacto package manager on the OS X platform 

	/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"


 ## Install Mathias’s dotfiles
 
Sensible hacker defaults for macOS.  [More info](https://github.com/mathiasbynens/dotfiles)
	   
	git clone https://github.com/mathiasbynens/dotfiles.git && cd dotfiles && source bootstrap.sh
	
Adds some great features like a bunch of really handy aliases. 
	Some you can try yourself:  
		
	# To list all files including hidden, with forward-slash to denote folders.
	la 
		
	# To show hidden files in Finder
	show
	
	# To hide hidden files in Finder
	hide

	# To view all the aliases now available for your use
	alias


Add the `.extra` as detailed [here](https://github.com/mathiasbynens/dotfiles)

Be sure to check the changes that the `.macos` scipt makes before using it to set some sensible macOS defaults. You may want to comment some out.

 ## Setup Terminal
 

 - Open **Preferences** for the **Terminal** app. 
 - Under **Profiles** select **Import** via the settings cog at the bottom of the pane. 
 - From there, import the _Solarized Dark xterm-256color.terminal_ profile. 
 - Now select the imported profile in the list and make it the default by clicking the **Default** button at the bottom of the pane. 
 - Restart the **Terminal** app for the new profile to be enabled.



## Setup the Ruby & Rails Environments

 1. Install **rbenv** 
		  
	 [rbenv](https://github.com/rbenv/rbenv) allows  for easily installation and switching between various versions of Ruby. More 
		
	Install **rbenv**.
		
		brew install rbenv		
		
	Set up **rbenv** integration with your shell.
		
		rbenv init

	Make **rbenv** load automatically.
		
		if ! grep -i 'eval "$(rbenv init -)"' ~/.bash_profile ; then echo 'eval "$(rbenv init -)"' >>  ~/.bash_profile ; fi
			
	Refresh the **Terminal**.
		
		reload 
	
	Check that **rbenv** is setup correctly
	
		curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-doctor | bash

	You should get something like this.
		![enter image description here](https://image.prntscr.com/image/DdJUSTNJRUGNej4DFzR6bg.png)
			
 2. Install **Ruby**
		 
    *Install the version you require*
		 
	    rbenv install 2.4.1
		
	Set the global Ruby version
	
	    rbenv global 2.4.1
	Check that it's set
	
		ruby -v
			
	It should return the version you set.	
	![enter image description here](https://image.prntscr.com/image/6RAtKo7eSpa4asGRe3I7Dg.png)

 3.  Install **Bundler**
	 
		[Bundler](http://bundler.io/) is a [Gem](http://guides.rubygems.org/rubygems-basics/) manager.
			
		 gem install bundler
	 
 4. Set **Gem** docs generation exclusion.
	
    	if ! grep -i 'gem: --no-ri --no-rdoc --no-document' ~/.gemrc ; then echo 'gem: --no-ri --no-rdoc --no-document' >>  ~/.gemrc ; fi
			
5. Install **Rails**
	
	   gem install rails



## Setup Postgres
  

 1. Install **Postgres.app**
 
	  Download from [here](https://postgresapp.com/) , install, open and select `Initialize`
	  
 2. Set the `$PATH`for  command line use.
 
		sudo mkdir -p /etc/paths.d && echo /Applications/Postgres.app/Contents/Versions/latest/bin | sudo tee /etc/paths.d/postgresapp && reload


## Create Test Rails App

   Here we will  create simple blog app
			
	# Create a project directory  
	mkdir -p ~/Projects/RailsApps
	cd ~/Projects/RailsApps

	# Create a new app preconfiguring postgres as the database
	rails new my_blog -d postgresql
	cd my_blog

	# Scaffold a Post MVC
	rails generate scaffold Post title:string body:text
		
	# Create the db & run migrations
	rails db:create db:migrate

	#Start the server
	rails server

 Check that the app is running at http://localhost:3000/
		 ![enter image description here](https://image.prntscr.com/image/F5a5bLJQQOaXPZgfVwJQmA.png)
		
Check that 	you can create, edit & delete Posts http://localhost:3000/posts