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Contents
module Sprinkle
module Installers
# The runner installer is great for running a simple command.
#
# == Example Usage
#
# package :magic_beans do
# runner "make world"
# end
#
# You can also pass multiple commands as arguments or an array.
#
# package :magic_beans do
# runner "make world", "destroy world"
# runner [ "make world", "destroy world" ]
# end
#
# Environment variables can be supplied throught the :env option.
#
# package :magic_beans do
# runner "make world", :env => {
# :PATH => '/this/is/my/path:$PATH'
# }
# end
#
class Runner < Installer
api do
def runner(*cmds, &block)
options = cmds.extract_options!
install Runner.new(self, cmds, options, &block)
end
# runs 'echo noop' on the remote host
def noop
install Runner.new(self, "echo noop")
end
end
attr_accessor :cmds #:nodoc:
def initialize(parent, cmds, options = {}, &block) #:nodoc:
super parent, options, &block
@env = options.delete(:env)
@cmds = [*cmds].flatten
raise "you need to specify a command" if cmds.nil?
end
protected
def env_str #:nodoc:
@env_str ||= @env.inject("env ") do |s, (k,v)|
s << "#{k.to_s.upcase}=#{v} "
end
end
def install_commands #:nodoc:
cmds = @env ? @cmds.map { |cmd| "#{env_str}#{cmd}"} : @cmds
sudo? ?
cmds.map { |cmd| "#{sudo_cmd}#{cmd}"} :
cmds
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems