Class: GlooLang::Verbs::Execute

Inherits:
Core::Verb show all
Defined in:
lib/gloo_lang/verbs/execute.rb

Constant Summary collapse

KEYWORD = 
'execute'.freeze
KEYWORD_SHORT = 
'exec'.freeze
MISSING_EXPR_ERR = 
'Missing Expression!'.freeze

Constants inherited from Core::Baseo

Core::Baseo::NOT_IMPLEMENTED_ERR

Instance Attribute Summary

Attributes inherited from Core::Verb

#params, #tokens

Attributes inherited from Core::Baseo

#name

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Core::Verb

#display_value, help, inherited, #initialize, #type_display

Methods inherited from Core::Baseo

#initialize, #type_display

Constructor Details

This class inherits a constructor from GlooLang::Core::Verb

Class Method Details

.keyword ⇒ Object

Get the Verb’s keyword.



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# File 'lib/gloo_lang/verbs/execute.rb', line 43

def self.keyword
  return KEYWORD
end

.keyword_shortcut ⇒ Object

Get the Verb’s keyword shortcut.



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# File 'lib/gloo_lang/verbs/execute.rb', line 50

def self.keyword_shortcut
  return KEYWORD_SHORT
end

Instance Method Details

#run ⇒ Object

Run the verb.



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# File 'lib/gloo_lang/verbs/execute.rb', line 18

def run
  if @tokens.token_count < 2
    @engine.err MISSING_EXPR_ERR
    return
  end

  expr = GlooLang::Expr::Expression.new( @engine, @tokens.params )
  cmd = expr.evaluate
  @engine.log.debug "starting cmd: #{cmd}"

  pid = fork { exec( cmd ) }
  Process.wait pid

  # pid = spawn cmd
  # Process.wait pid
  @engine.log.debug "done executing cmd: #{cmd}"

  # system expr.evaluate  #, chdir: Dir.pwd
  # `#{expr.evaluate}`
  # exec expr.evaluate
end