Class: Rrm::Dockerfile

Inherits:
Object
  • Object
show all
Defined in:
lib/rrm/filehandlers/dockerfile.rb

Constant Summary collapse

FILENAME = 
'Dockerfile'
PATTERN = 
/^FROM ruby:([\d.]{1,5})/

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(git) ⇒ Dockerfile

Returns a new instance of Dockerfile.



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# File 'lib/rrm/filehandlers/dockerfile.rb', line 8

def initialize(git)
  @content = File.read("#{git.dir.path}/#{FILENAME}")
  @git = git
rescue
  @content = nil
end

Instance Attribute Details

#content ⇒ Object

Returns the value of attribute content.



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# File 'lib/rrm/filehandlers/dockerfile.rb', line 6

def content
  @content
end

#git ⇒ Object

Returns the value of attribute git.



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# File 'lib/rrm/filehandlers/dockerfile.rb', line 6

def git
  @git
end

#new_version ⇒ Object

Returns the value of attribute new_version.



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# File 'lib/rrm/filehandlers/dockerfile.rb', line 6

def new_version
  @new_version
end

Instance Method Details

#ruby_version ⇒ Object 



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# File 'lib/rrm/filehandlers/dockerfile.rb', line 26

def ruby_version
  @ruby_version ||= content.match(PATTERN).captures.first
end

#update!(new_version) ⇒ Object 



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# File 'lib/rrm/filehandlers/dockerfile.rb', line 15

def update!(new_version)
  new_content = content.gsub(/(^FROM ruby:)([\d.]{1,5})/, ('\1'+new_version))
  file = File.open("#{git.dir.path}/#{FILENAME}", 'w')
  file.puts new_content
  file.close
  git.commit_all("Updating #{FILENAME} to Ruby #{new_version}")
rescue
  Rrm.logger.debug("Could not update #{FILENAME} because #{$!.message}")
  nil
end