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Contents
module Capitate
module CapExt
module Variables
def self.included(base) #:nodoc:
base.send :alias_method, :fetch_without_capitate, :fetch
base.send :alias_method, :fetch, :fetch_with_capitate
end
# Fetch (alias method chained) variable.
# Displays usage message from recipe docs if variable not found.
#
# See capistrano fetch for usage info.
#
# Recipe docs are in lib/doc/the_namespace.yml
#
def fetch_with_capitate(variable, *args)
begin
fetch_without_capitate(variable, *args)
rescue IndexError
message = capitate.usage(variable)
if message.blank?
message = <<-EOS
Please set :#{variable} variable in your Capfile or profile.
EOS
end
raise IndexError, "\n#{message}"
end
end
# Fetch or set and return default.
#
# ==== Options
# +variable+:: Variable to fetch
# +default+:: Default value if not set
# +args+:: ?
#
# ==== Examples
# fetch_or_default(:memcached_port, 11211) => 11211
# # Any calls to fetch(memcached_port) in the future will return this value 11211 (unless overriden)
#
def fetch_or_default(variable, default, *args)
begin
return fetch(variable, *args)
rescue IndexError
set variable, default
end
default
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems