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Versions: 10
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Contents
module Sprinkle
module Installers
# Beware, strange "installer" coming your way.
#
# This push text installer pushes simple configuration into a file.
#
# == Example Usage
#
# Installing magic_beans into apache2.conf
#
# package :magic_beans do
# push_text 'magic_beans', '/etc/apache2/apache2.conf'
# end
#
# If you user has access to 'sudo' and theres a file that requires
# priveledges, you can pass :sudo => true
#
# package :magic_beans do
# push_text 'magic_beans', '/etc/apache2/apache2.conf', :sudo => true
# end
#
# A special verify step exists for this very installer
# its known as +file_contains+, it will test that a file indeed
# contains a substring that you send it.
#
# package :magic_beans do
# push_text 'magic_beans', '/etc/apache2/apache2.conf'
# verify do
# file_contains '/etc/apache2/apache2.conf', 'magic_beans'
# end
# end
#
class PushText < Installer
attr_accessor :text, :path #:nodoc:
api do
def push_text(text, path, options = {}, &block)
install PushText.new(self, text, path, options, &block)
end
end
def initialize(parent, text, path, options={}, &block) #:nodoc:
super parent, options, &block
# by default we would not want to push the same thing over and over
options.reverse_merge!(:idempotent => true)
@text = text
@path = path
end
def announce
log "--> Append '#{@text}' to file #{@path}"
end
protected
def install_commands #:nodoc:
escaped_text = escape_shell_arg(@text)
escaped_regex = Regexp.escape(@text)
command = ""
command << "#{sudo_cmd}grep -qPzo '^#{escaped_regex}$' #{@path} || " if option?(:idempotent)
command << "/bin/echo -e '#{escaped_text}' |#{sudo_cmd}tee -a #{@path}"
command
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems