Module: System

Defined in:
lib/vex/base/system.rb

Defined Under Namespace

Classes: ProcessFailed

Class Method Summary collapse

Class Method Details

.linux? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vex/base/system.rb', line 43

def self.linux?
  uname == "Linux"
end

.name ⇒ Object 



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# File 'lib/vex/base/system.rb', line 35

def self.name
  case uname
  when "Darwin" then :osx
  when "Linux" then :linux
  else raise "Unsupported OS uname #{uname}"
  end
end

.sys(*args) ⇒ Object 



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# File 'lib/vex/base/system.rb', line 24

def self.sys(*args)
  sys!(*args)
rescue ProcessFailed
  App.logger.warn "#{args.join(" ")}: #{$!}"
  false
end

.sys!(*args) ⇒ Object 



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# File 'lib/vex/base/system.rb', line 15

def self.sys!(*args)
  cmd = args.join(" ")
  
  benchmark "**** Running #{cmd}" do
    next true if system(cmd)
    raise ProcessFailed, cmd 
  end
end

.uname ⇒ Object 



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# File 'lib/vex/base/system.rb', line 31

def self.uname
  @uname ||= `uname`.chomp
end

.which(binary) ⇒ Object 



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# File 'lib/vex/base/system.rb', line 47

def self.which(binary)
  r = `which #{binary}`.chomp
  r.blank? ? nil : r
end

.which!(binary) ⇒ Object 



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# File 'lib/vex/base/system.rb', line 52

def self.which!(binary)
  which(binary) || abort("Missing binary #{binary}")
end