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Contents
module Sprinkle
module Installers
# = Replace text installer
#
# This installer replaces a text with another one in a file.
#
# == Example Usage
#
# Change ssh port in /etc/ssh/sshd_config
#
# package :magic_beans do
# replace_text 'Port 22', 'Port 2500', '/etc/ssh/sshd_config'
# end
#
# If you user has access to 'sudo' and theres a file that requires
# privileges, you can pass :sudo => true
#
# package :magic_beans do
# replace_text 'Port 22', 'Port 2500', '/etc/ssh/sshd_config', :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.
#
class ReplaceText < Installer
attr_accessor :regex, :text, :path #:nodoc:
api do
def replace_text(regex, text, path, options={}, &block)
install ReplaceText.new(self, regex, text, path, options, &block)
end
end
def initialize(parent, regex, text, path, options={}, &block) #:nodoc:
super parent, options, &block
@regex = regex
@text = text
@path = path
end
def announce
log "--> Replace '#{@regex}' with '#{@text}' in file #{@path}"
end
protected
def escape_sed_arg(s)
escape_shell_arg(s).gsub("/", "\\\\/").gsub('&', '\\\&')
end
def install_commands #:nodoc:
"#{sudo_cmd}sed -i 's/#{escape_sed_arg(@regex)}/#{escape_sed_arg(@text)}/g' #{@path}"
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems