Module: PleaseRun::MustacheMethods

Included in:
Platform::Base, User::Base
Defined in:
lib/pleaserun/mustache_methods.rb

Overview

Methods for use within mustache render() calls.

Instance Method Summary collapse

Instance Method Details

#escaped(str) ⇒ Object

def escaped_args



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# File 'lib/pleaserun/mustache_methods.rb', line 12

def escaped(str)
  return Shellwords.shellescape(Mustache.render(str, self))
end

#escaped_args ⇒ Object 



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# File 'lib/pleaserun/mustache_methods.rb', line 7

def escaped_args
  return if args.nil?
  return Shellwords.shellescape(Shellwords.shelljoin(args))
end

#quoted(str) ⇒ Object

def shell_continuation



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# File 'lib/pleaserun/mustache_methods.rb', line 39

def quoted(str)
  return shell_quote(render(str))
end

#shell_args ⇒ Object

def escaped



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# File 'lib/pleaserun/mustache_methods.rb', line 16

def shell_args
  return if args.nil?
  return args.collect { |a| shell_quote(a) }.join(" ")
end

#shell_continuation(str) ⇒ Object

def shell_quote



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# File 'lib/pleaserun/mustache_methods.rb', line 35

def shell_continuation(str)
  return render(str).split("\n").reject { |l| l =~ /^\s*$/ }.join(" \\\n")
end

#shell_quote(str) ⇒ Object

def shell_args



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# File 'lib/pleaserun/mustache_methods.rb', line 21

def shell_quote(str)
  # interpreted from POSIX 1003.1 2004 section 2.2.3 (Double-Quotes)

  # $ is has meaning, escape it.
  value = str.gsub(/(?<![\\])\$/, "\\$")
  # ` is has meaning, escape it.
  value = value.gsub(/`/) { "\\`" }

  # Backslash means escape a literal unless followed by one of $`"\
  value = value.gsub(/\\[^$`"\\]/) { |v| "\\#{v}" }    

  return "\"" + value + "\""
end