rbenvインストール

$ git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
$ git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
$ source ~/.bash_profile

rbenv確認

$ rbenv -v
rbenv 1.0.0-21-g9fdce5d

rubyインストール

$ rbenv install --list
.....
$ rbenv install 2.3.0
$ rbenv global 2.3.0
$ rbenv rehash

Railsインストール

$ gem install rails
$ rails -v
Rails 4.2.6

Railsアプリ作成

$ rails new helloapp

$ vi Gemfile
gem 'execjs'
gem 'therubyracer'

Railsサーバ起動

$ rails bundle install
$ rails s -b 0.0.0.0
=> Booting WEBrick
=> Rails 4.2.6 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server

$ rails s
....
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.
You need to install postgresql-server-dev-X.Y for building a server-side extension or libpq-dev for building a client-side application.
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
....
An error occurred while installing pg (0.18.4)

# aptitude install postgresql-server-dev-9.3

$ bundle install
$ rails s

/Users/yoo/src/lavish/config/initializers/session_store.rb:3: syntax error, unexpected ':', expecting $end (SyntaxError)

rvmのインストール

$ sudo gem install rvm

$ bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)

$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.bash_profile

source ~/.bash_profile

$ curl -L get.rvm.io | bash -s stable
$ source ~/.rvm/scripts/'rvm'

rvmの環境確認・構築

rvm requirements

Xcode 4.3+ users
- please be warned
- only ruby-1.9.3-p125+ is partially supported
- in case of any compilation issues:
* downgrade to Xcode 4.1
* uninstall Xcode and install osx-gcc-installer

$ rvm get latest
$ rvm pkg install readline
$ rvm install 1.9.3 --with-openssl-dir=$rvm_path/usr

Rubyのバージョン確認

$ ruby -v
ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-darwin11.3.0]

ImageMagickのインストール

$ bundle install

An error occured while installing rmagick (2.13.1), and Bundler cannot continue.
Make sure that `gem install rmagick -v '2.13.1'` succeeds before bundling.

$ gem install rmagick

brew の問題確認

$ brew doctor

Warning: Your compilers are different from the standard versions for your Xcode.
If you have Xcode 4.3 or newer, you should install the Command Line Tools for
Xcode from within Xcode's Download preferences.
Otherwise, you should reinstall Xcode.
Warning: Your Xcode is configured with an invalid path.
You should change it to the correct path. Please note that there is no correct
path at this time if you have *only* installed the Command Line Tools for Xcode.
If your Xcode is pre-4.3 or you installed the whole of Xcode 4.3 then one of
these is (probably) what you want:

sudo xcode-select -switch /Developer
sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer

sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer

/Users/ユーザ名/.rvm/gems/

$ brew uninstall little-cms
$ brew install little-cms
$ brew uninstall imagemagick
$ brew install -f imagemagick --disable-openmp

sudo chown -R ユーザ名 rmagick-2.13.1

$ gem install rmagick
$ bundle install