Class: Installer

Inherits:
Object
  • Object
show all
Defined in:
lib/yodel/command/installer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Installer

Returns a new instance of Installer.



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# File 'lib/yodel/command/installer.rb', line 39

def initialize
  # assign default values; not all values have associated questions
  # presented to the user depen
  @database_hostname  = 'localhost'
  @database_port      = 27017
  @database_name      = 'yodel'
  @web_port           = 80
  @dns_port           = 2828
  @public_directory   = '/var/www'
  @sites_root         = default_sites_root
  @ruby_path          = default_ruby_path
  @git_path           = `which git`.strip
  @identify_path      = `which identify`.strip
  @convert_path       = `which convert`.strip
  assign_default_user_and_group
end

Instance Attribute Details

#convert_path ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def convert_path
  @convert_path
end

#database_hostname ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def database_hostname
  @database_hostname
end

#database_name ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def database_name
  @database_name
end

#database_port ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def database_port
  @database_port
end

#dns_port ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def dns_port
  @dns_port
end

#git_path ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def git_path
  @git_path
end

#group ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def group
  @group
end

#identify_path ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def identify_path
  @identify_path
end

#public_directory ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def public_directory
  @public_directory
end

#ruby_path ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def ruby_path
  @ruby_path
end

#sites_root ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def sites_root
  @sites_root
end

#user ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def user
  @user
end

#web_port ⇒ Object (readonly)

Template variables



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# File 'lib/yodel/command/installer.rb', line 11

def web_port
  @web_port
end

Instance Method Details

#assign_default_user_and_group ⇒ Object 



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# File 'lib/yodel/command/installer.rb', line 33

def assign_default_user_and_group
  pwnam   = Etc.getpwnam(Etc.getlogin)
  @user   = pwnam.uid
  @group  = pwnam.gid
end

#default_ruby_path ⇒ Object 



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# File 'lib/yodel/command/installer.rb', line 24

def default_ruby_path
  if RbConfig.ruby =~ /rubies\/(.*)\/bin/
    `rvm wrapper #{$1} yodel`
    `which yodel_ruby`.strip
  else
    Config.ruby
  end
end

#default_sites_root ⇒ Object 



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# File 'lib/yodel/command/installer.rb', line 16

def default_sites_root
  if `uname -a` =~ /Darwin/
    File.expand_path('~/Sites')
  else
    '/var/www'
  end
end

#escape_quotes(str) ⇒ Object 



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# File 'lib/yodel/command/installer.rb', line 64

def escape_quotes(str)
  str.gsub("'", "\\\\'")
end

#install(file, permissions = '0644', file_name = nil) ⇒ Object 



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# File 'lib/yodel/command/installer.rb', line 68

def install(file, permissions='0644', file_name=nil)
  if file_name
    dest_path = File.join('/', File.dirname(file), file_name)
  else
    dest_path = File.join('/', file)
  end
  source_path = File.join(system_path, file)
  temp_file   = Tempfile.new('yodel')
  Feedback.report('installing', dest_path)
  
  # render the file template
  temp_file.write Ember::Template.new(IO.read(source_path), {source_file: source_path}).render(binding)
  temp_file.close
  
  # create parent directories, copy the rendered file and set permissions
  `sudo mkdir -p #{File.dirname(dest_path)}`
  `sudo cp #{temp_file.path} #{dest_path}`
  `sudo chmod #{permissions} #{dest_path}`
  
  # delete the temp file used for rendering
  temp_file.unlink
end

#install_linux_files ⇒ Object

Linux



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# File 'lib/yodel/command/installer.rb', line 214

def install_linux_files
  install 'usr/local/bin/yodel_command_runner', '0777'
  install 'var/log/yodel.log', '0666'
  
  case @environment
  when 'development'
    install 'usr/local/etc/yodel/development_settings.rb', '0644', 'settings.rb'
  when 'production'
    install 'usr/local/etc/yodel/production_settings.rb', '0644', 'settings.rb'
  end
end

#install_mac_files ⇒ Object

OS X



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# File 'lib/yodel/command/installer.rb', line 193

def install_mac_files
  install 'etc/resolver/yodel'
  install 'Library/LaunchDaemons/com.yodelcms.dns.plist'
  install 'Library/LaunchDaemons/com.yodelcms.server.plist'
  install 'usr/local/bin/yodel_command_runner', '0777'
  install 'var/log/yodel.log', '0666'
  
  case @environment
  when 'development'
    install 'usr/local/etc/yodel/development_settings.rb', '0644', 'settings.rb'
  when 'production'
    install 'usr/local/etc/yodel/production_settings.rb', '0644', 'settings.rb'
  end
  
  Restart.restart!
end

#install_system_files ⇒ Object

Q & A



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# File 'lib/yodel/command/installer.rb', line 95

def install_system_files
  @h = h = HighLine.new
  h.say "\n<%= color('Welcome to Yodel', BOLD) %>\n\n"
  
  # environment
  h.say "<%= color('Environment', BOLD) %>"
  h.say "Yodel can run in development (local) mode or as a production server. Press"
  h.say "enter to setup Yodel in development mode, or enter 'production' to setup"
  h.say "a production server."
  @environment = h.ask("Environment: ") do |q|
    q.default = 'development'
    q.in = %w{development production}
    q.responses[:ask_on_error] = :question
  end
  
  # local sites directory
  h.say "\n<%= color('1/3', RED) %> <%= color('Sites Directory', BOLD) %>"
  h.say "Yodel stores each of your sites in a single directory. You may place this directory"
  h.say "anywhere, but all sites created by Yodel must be accessible from it. Press enter to"
  h.say "accept the default directory, or enter a new path."
  @sites_root = h.ask("Sites directory: ") do |q|
    q.default = @sites_root
    q.responses[:ask_on_error] = :question
  end
  @sites_root = escape_quotes(@sites_root)
  
  # web server port
  if @environment == 'development'
    h.say "\n<%= color('2/3', RED) %> <%= color('Local Server', BOLD) %>"
    h.say "By default the yodel server will run on port 80, meaning you can access yodel"
    h.say "sites by visiting <http://sitename.yodel/>. If you already have Apache or"
    h.say "another web server running on this port, enter a different port (such as 8080)"
    @web_port = h.ask("Use port: ", Integer) do |q|
      q.default = @web_port
      q.responses[:ask_on_error] = :question
    end
  else
    h.say "\n<%= color('2/3', RED) %> <%= color('Public Directory', BOLD) %>"
    h.say "Yodel symlinks the public directory of sites served by the production server"
    h.say "to a directory visible to the fronting web server. The domain of a site is"
    h.say "used as the link name, meaning /var/www/domain.com could e.g link to"
    h.say "/var/git/ID/public. This makes serving public assets from a fronting server"
    h.say "possible by rewriting the request path to include the domain of the request."
    @public_directory = h.ask("Public directory: ") do |q|
      q.default = @public_directory
      q.responses[:ask_on_error] = :question
    end
    @public_directory = escape_quotes(@public_directory)
  end
  
  h.say "\n<%= color('3/3', RED) %> <%= color('Installing files', BOLD) %>"
  h.say "Yodel will now install the necessary system files. You may be asked to enter"
  h.say "your local user password.\n\n"
  h.say "-----------------------------------------------------------------------------\n\n"
  
  # default program paths
  Feedback.report('locating', "git: #{@git_path}")
  Feedback.report('warning', "git not found, path must be set manually in /usr/local/etc/yodel/settings.rb") if @git_path.empty?
  Feedback.report('locating', "identify: #{@identify_path}")
  Feedback.report('warning', "identify not found, path must be set manually in /usr/local/etc/yodel/settings.rb") if @identify_path.empty?
  Feedback.report('locating', "convert: #{@convert_path}")
  Feedback.report('warning', "convert not found, path must be set manually in /usr/local/etc/yodel/settings.rb") if @convert_path.empty?
  
  # install system files
  if `uname -a` =~ /Darwin/
    install_mac_files
  else
    install_linux_files
  end
  
  # start yodel for environment installation
  Feedback.report('starting', 'yodel')
  require '../../yodel'
  Yodel.config.extensions_folder = $extensions_folder if $extensions_folder
  Yodel.load_extensions
  
  # install an environment support site
  Feedback.report('installing', "#{@environment} environment support site")
  site = Site.new
  site.name = "yodel"
  site.domains = ['yodel', 'localhost', '127.0.0.1']
  extension = Yodel.extensions["yodel_#{@environment}_environment"]
  puts "Installation environment (#{@environment}) not found" and exit(1) if extension.nil?
  site.root_directory = extension.lib_dir
  site.save
  Migration.run_migrations(site)
  
  h.say "\n-----------------------------------------------------------------------------"
  h.say "\n<%= color('Installation complete', BOLD) %>"
  h.say "Visit http://yodel#{":#{@web_port}" if @web_port != 80}/ to setup accounts you have on a remote Yodel server."
  h.say "You can create a new site by visiting <http://sitename.yodel#{":#{@web_port}" if @web_port != 80}/> and"
  h.say "following the instructions\n\n"
end

#system_path ⇒ Object

Helpers



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# File 'lib/yodel/command/installer.rb', line 60

def system_path
  @system_path ||= File.join(File.dirname(__FILE__), '..', '..', '..', 'system')
end