Module: Caterer::Util::Shell

Included in:
Provisioner::ChefSolo, Server
Defined in:
lib/caterer/util/shell.rb

Instance Method Summary collapse

Instance Method Details

#bash(cmd) ⇒ Object 



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# File 'lib/caterer/util/shell.rb', line 16

def bash(cmd)
  "bash -c \"#{escape(cmd)}\""
end

#env(vars) ⇒ Object 



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# File 'lib/caterer/util/shell.rb', line 24

def env(vars)
  vars ||= {}
  env = ''
  vars.each do |key, val|
    env += " " if not env == ''
    env += env_string(key, val)
  end
  (env == '')? env : "#{env} "
end

#env_string(key, val) ⇒ Object 



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# File 'lib/caterer/util/shell.rb', line 34

def env_string(key, val)
  key = key.to_s if not key.is_a? String
  %Q{#{key.upcase}="#{escape(val)}"}
end

#escape(cmd) ⇒ Object

strategy: 1- escape the escapes 2- escape quotes 3- escape dollar signs



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# File 'lib/caterer/util/shell.rb', line 9

def escape(cmd)
  cmd.gsub!(/\\/, "\\\\\\")
  cmd.gsub!(/"/, "\\\"")
  cmd.gsub!(/\$/, "\\$")
  cmd
end

#su(user, cmd) ⇒ Object 



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# File 'lib/caterer/util/shell.rb', line 20

def su(user, cmd)
  "su #{user} -l -c \"#{escape(cmd)}\""
end