Class: Foreplay::Deploy

Inherits:
Thor::Group
  • Object
show all
Includes:
Thor::Actions
Defined in:
lib/foreplay/deploy.rb

Constant Summary collapse

DEFAULTS_KEY = 
'defaults'
INDENT = 
' ' * 4

Instance Method Summary collapse

Instance Method Details

#parse ⇒ Object 



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# File 'lib/foreplay/deploy.rb', line 22

def parse
  # Explain what we're going to do
  message = "#{mode.capitalize}ing #{environment.dup.yellow} environment, "
  message += "#{explanatory_text(filters, 'role')}, #{explanatory_text(filters, 'server')}"
  puts message

  config_file = "#{Dir.getwd}/config/foreplay.yml"

  begin
    config_yml = File.read config_file
  rescue Errno::ENOENT
    terminate "Can't find configuration file #{config_file}.\nPlease run foreplay setup or create the file manually."
  end

  config_all = YAML.load(config_yml)
  config_env = config_all[environment] || {}

  # This environment
  unless config_all.key? environment
    terminate("No deployment configuration defined for #{environment} environment.\nCheck #{config_file}")
  end

  # Servers asked for
  server_filter = filters['server'].split(',') if filters.key?('server')

  # Establish defaults
  # First the default defaults
  defaults = {
    name:         File.basename(Dir.getwd),
    environment:  environment,
    env:          { 'RAILS_ENV' => environment },
    port:         50_000
  }

  defaults = Foreplay::Utility.supermerge(defaults, config_all[DEFAULTS_KEY]) if config_all.key? DEFAULTS_KEY
  defaults = Foreplay::Utility.supermerge(defaults, config_env[DEFAULTS_KEY]) if config_env.key? DEFAULTS_KEY

  config_env.each do |role, additional_instructions|
    next if role == DEFAULTS_KEY # 'defaults' is not a role
    # Only deploy to the role we've specified (or all roles if none is specified)
    next if filters.key?('role') && filters['role'] != role

    instructions        = Foreplay::Utility.supermerge(defaults, additional_instructions).symbolize_keys
    instructions[:role] = role
    required_keys       = [:name, :environment, :role, :servers, :path, :repository]

    required_keys.each do |key|
      next if instructions.key? key
      terminate("Required key #{key} not found in instructions for #{environment} environment.\nCheck #{config_file}")
    end

    # Apply server filter
    instructions[:servers] &= server_filter if server_filter

    deploy_role instructions
  end

  puts mode == :deploy ? 'Finished deployment' : 'Deployment configuration check was successful'
end