Top Level Namespace

Defined Under Namespace

Modules: Capistrano, Meataxe

Instance Method Summary collapse

Instance Method Details

#host_architecture ⇒ Object 



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# File 'lib/meataxe/capistrano.rb', line 48

def host_architecture
  capture("uname -m")
end

#smart_template(from, to = nil) ⇒ Object

First try and copy the file ‘config/deploy/#full_app_name/#from.erb` to `shared/config/#to`

If the original source path doesn exist then it will search in: ‘config/deploy/shared/#from.erb` This allows files which are common to all enviros to come from a single source while allowing specific ones to be over-ridden. If the target file name is the same as the source then the second parameter can be left out.



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# File 'lib/meataxe/capistrano.rb', line 12

def smart_template(from, to=nil)
  to ||= from
  full_to_path = "#{shared_path}/config/#{to}"
  if from_erb_path = template_file(from)
    from_erb = StringIO.new(ERB.new(File.read(from_erb_path)).result(binding))
    upload! from_erb, full_to_path
    info "copying #{from_erb_path} to #{full_to_path}"
  else
    error "error #{from} not found"
  end
end

#sub_strings(input_string) ⇒ Object

We often want to refer to variables which are defined in subsequent stage files. This let’s us use the {var} to represent fetch(:var) in strings which are only evaluated at runtime.



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# File 'lib/meataxe/capistrano.rb', line 40

def sub_strings(input_string)
  output_string = input_string
  input_string.scan(/{{(\w*)}}/).each do |var|
    output_string.gsub!("{{#{var[0]}}}", fetch(var[0].to_sym))
  end
  output_string
end

#template_file(name) ⇒ Object

Load templates from the local config directory, or fallback to default templates.



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# File 'lib/meataxe/capistrano.rb', line 26

def template_file(name)
  if File.exist?((file = "config/deploy/shared/#{name}.erb"))
    return file
  elsif File.exist?((file = "config/deploy/templates/#{name}.erb"))
    return file
  elsif File.exist?((file = File.join(File.dirname(__FILE__), "capistrano/templates/#{name}.erb")))
    return file
  end
  return nil
end

#update_repo(repo_url, target_path) ⇒ Object 



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# File 'lib/meataxe/capistrano.rb', line 52

def update_repo(repo_url, target_path)
  execute "if [ -d #{target_path} ]; then (cd #{target_path} && git pull); else git clone #{repo_url} #{target_path}; fi"
  #run "cd #{target_path} && if [ -d #{target_path} ]; then (git pull); else (cd #{target_path} && cd.. && git clone #{repo_url} #{target_path}); fi"
end