Class: FRM::Base

Inherits:
Object
  • Object
show all
Defined in:
lib/frm/base.rb

Direct Known Subclasses

ArchRelease, Deb, Package, Release, ReleasePusher, S3

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

Returns a new instance of Base.



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# File 'lib/frm/base.rb', line 3

def initialize
  @retries = 3
end

Instance Method Details

#compute_md5(string) ⇒ Object 



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# File 'lib/frm/base.rb', line 7

def compute_md5(string)
  Digest::MD5.hexdigest(string)
end

#compute_sha1(string) ⇒ Object 



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# File 'lib/frm/base.rb', line 11

def compute_sha1(string)
  Digest::SHA1.hexdigest(string)
end

#compute_sha2(string) ⇒ Object 



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# File 'lib/frm/base.rb', line 15

def compute_sha2(string)
  Digest::SHA2.hexdigest(string)
end

#generate_gzip_pipe(contents) ⇒ Object 



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# File 'lib/frm/base.rb', line 48

def generate_gzip_pipe(contents)
  read_buffer, write_buffer = IO.pipe
  gzip_writer = Zlib::GzipWriter.new write_buffer
  gzip_writer.mtime = 1 # ensure that the header is determinstic
  gzip_writer.write contents
  gzip_writer.close
  read_buffer
end

#gpg_clearsign(message) ⇒ Object

TODO: there has to be a better way to use gpg withen ruby. found many broken solutions :\



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# File 'lib/frm/base.rb', line 33

def gpg_clearsign(message)
  run "echo '#{message}' | gpg --clearsign"
end

#gpg_detached(message) ⇒ Object

TODO: same as above



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# File 'lib/frm/base.rb', line 38

def gpg_detached(message)
  run "echo '#{message}' | gpg -abs"
end

#gpg_export_pubkey ⇒ Object

TODO: same as above



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# File 'lib/frm/base.rb', line 43

def gpg_export_pubkey
  run "gpg --armor --export"
end

#gunzip_pipe(gziped_pipe) ⇒ Object 



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# File 'lib/frm/base.rb', line 57

def gunzip_pipe(gziped_pipe)
  gzip_reader = Zlib::GzipReader.new gziped_pipe
  unzipped_string = gzip_reader.read
  gzip_reader.close
  return unzipped_string
end

#handle_errors(&block) ⇒ Object 



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# File 'lib/frm/base.rb', line 64

def handle_errors(&block)
  retries = 0
  begin
    yield
  rescue Object => error_object
    if retries < @retries
      sleep(2**retries * 1) #exponential backoff, 1s base
      retries += 1
      STDERR.puts "encountered error #{error_object.inspect}, retrying attempt #{retries}."
      retry
    else
      logger.error "encountered error #{error_object.inspect}, aborting."
      raise error_object
    end
  end
end

#run(command) ⇒ Object 



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# File 'lib/frm/base.rb', line 19

def run(command)
  output = `#{command} 2>&1`.chomp
  unless $?.success?
    STDERR.puts "failed to run command: #{command}"
    STDERR.puts "output was: "
    STDERR.puts output
    raise "failed to run command: #{command}"
  end
  return output
end