Class: Capistrano::Former03::Install

Inherits:
Object
  • Object
show all
Defined in:
lib/capistrano/former03/install.rb

Overview

Install application

Constant Summary collapse

@@name = 
'f03capinstall'

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Install

Returns a new instance of Install.



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# File 'lib/capistrano/former03/install.rb', line 13

def initialize
  @options = {}
  @argv = nil
  @log = Logger.new(STDOUT)
  @log.level = Logger::INFO


end

Instance Method Details

#generate_file(path, template, stage = nil) ⇒ Object 



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# File 'lib/capistrano/former03/install.rb', line 70

def generate_file (path,template,stage=nil)
  require 'capistrano/version'

  if not path.dirname.directory?
    @log.debug "create directory '#{path.dirname}"
    FileUtils.mkdir_p path.dirname
  end

  if path.exist?
    if @options.force
      @log.warn "Overwriting file '#{path}'. To overwrite it use flag --force"
      path.delete
    else
      @log.warn "won't overwrite already existing file '#{path}'. To overwrite it use flag --force"
      return
    end
  end

  f=path.open('w')
  f.write(template.result(binding))
  f.close

  @log.info "Wrote file '#{path}'"
end

#generate_files ⇒ Object 



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# File 'lib/capistrano/former03/install.rb', line 61

def generate_files
  pwd = Pathname.pwd
  generate_file pwd.join('Capfile'), @template_capfile
  generate_file pwd.join('config/deploy.rb'), @template_deploy_rb
  @options.stages.each do |stage|
    generate_file pwd.join("config/deploy/#{stage}.rb"), @template_stage_rb, stage
  end
end

#parse_arguments ⇒ Object 



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# File 'lib/capistrano/former03/install.rb', line 22

def parse_arguments
  options = OpenStruct.new
  options.stages = ['production','staging','development']
  options.force = false
  options.verbose = false

  opt_parser = OptionParser.new do |opts|
    opts.banner = "Usage: #{@@name} [options]"
    # Boolean switch
    opts.on("-s", "--stages [#{options.stages.join(',')}]", Array, "Specify custom stage names") do |s|
      options.stages = stages
    end

    opts.on("-f", "--force", "Overwrite existing files") do |v|
      options.force = v
    end

    opts.on("-v", "--verbose", "Run verbosely") do |v|
      options.verbose = v
    end
  end

  opt_parser.parse!(@argv)

  @options = options

  if @options.verbose
    @log.level = Logger::DEBUG
  end
end

#run ⇒ Object

Main method of application



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# File 'lib/capistrano/former03/install.rb', line 96

def run
  @argv = ARGV.dup

  # Parse arguments
  parse_arguments

  # logging
  @log.debug "#{@@name} is starting with arguments: #{ARGV}"
  @log.debug "Parsed options: #{@options}"

  # setup templates
  setup_templates

  # generate the actual files
  generate_files

end

#setup_templates ⇒ Object 



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# File 'lib/capistrano/former03/install.rb', line 53

def setup_templates
  template_dir = Pathname.new(File.expand_path("../templates/", __FILE__))
  @log.debug "Search for templates in path '#{template_dir}'"
  @template_deploy_rb = ERB.new template_dir.join('deploy.rb.erb').read
  @template_stage_rb = ERB.new template_dir.join('stage.rb.erb').read
  @template_capfile = ERB.new template_dir.join('Capfile').read
end