Class: Labrea

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename, install_dir, opts) ⇒ Labrea

Class initialization



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# File 'lib/labrea.rb', line 9

def initialize(filename, install_dir, opts)
  @filename   = filename
  @install_dir  = install_dir
  @exclude    = exclude
  @working_dir  = Dir.pwd()
  @changeset    = Array.new
  defaults = {
    :exclude => [],
    :checksum_file => "checksum.json"
  }
  opts = defaults.merge(opts)
  @exclude = opts[:exclude]
  @checksum_file = opts[:checksum_file]
end

Instance Attribute Details

#checksum_file ⇒ Object

Returns the value of attribute checksum_file.



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# File 'lib/labrea.rb', line 25

def checksum_file
  @checksum_file
end

#exclude ⇒ Object

Returns the value of attribute exclude.



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# File 'lib/labrea.rb', line 24

def exclude
  @exclude
end

Instance Method Details

#checksum_fqn ⇒ Object 



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# File 'lib/labrea.rb', line 145

def checksum_fqn
  if @checksum_file =~ /^#{File::SEPARATOR}/
    @checksum_file
  else
    File.join(@install_dir,@checksum_file)
  end
end

#extract_file(file, testmode) ⇒ Object 



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# File 'lib/labrea.rb', line 122

def extract_file(file, testmode)
  Dir.chdir(@working_dir) do |path|
    @changeset << file.to_s

    case filetype(@filename)
    when :tgz
  `tar -xzf #{@filename} -C #{@install_dir} #{file}` unless testmode
    when :zip
  `unzip -q #{@filename} -d #{@install_dir} #{file}` unless testmode
    when :bz2
  `tar -xjf #{@filename} -C #{@install_dir} #{file}` unless testmode
    end
  end
end

#extract_files(testmode) ⇒ Object 



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# File 'lib/labrea.rb', line 106

def extract_files(testmode)
  Dir.chdir(@working_dir) do |path|

    case filetype(@filename)
    when :tgz
  output = `tar -xvzf #{@filename} -C #{@install_dir} 2>/dev/null` unless testmode
    when :zip
  `unzip #{@filename} -d #{@install_dir}` unless testmode
      output = `zipinfo -1 #{@filename}`
    when :bz2
  output = `tar -xvjf #{@filename} -C #{@install_dir} 2>/dev/null` unless testmode
    end
    @changeset |= output.split("\n") if output
  end
end

#filetype(filename) ⇒ Object 



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# File 'lib/labrea.rb', line 86

def filetype(filename)
  if filename.match('.*\.tgz')
    return :tgz
  end

  if filename.match('.*\.tar\.gz')
    return :tgz
  end

  if filename.match('.*\.zip')
    return :zip
  end

  if filename.match('.*\.bz2')
    return :bz2
  end

  return :unknown
end

#install(testmode = false) ⇒ Object

Installation of binary archive



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# File 'lib/labrea.rb', line 28

def install(testmode=false)
  @changeset.clear
  extract_files(testmode)

  # Generate checksums and add to hash
  checksums = Hash.new
  if File.exists?(@install_dir)
    Dir.chdir(@install_dir) do |path|
      @changeset.each do |file|
        checksums[file] = sha1sum(file) unless @exclude.include? file
      end
    end 
  # Dir.glob("**/*.*") do |file|
  #   @changeset << file.to_s
  #   if File.file?(file)
  #     if [email protected]? file
  #       checksums[file] = sha1sum(file)
  #     end
  #   end
  # end
  #  end
  end
  
  # Write out checksum file
  File.open(checksum_fqn, "w+") do |file|
    file.puts JSON.generate(checksums)
  end unless testmode

  return @changeset
end

#sha1sum(file) ⇒ Object 



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# File 'lib/labrea.rb', line 137

def sha1sum(file)
    if File.file?(file)
  return Digest::SHA1.hexdigest File.read(file)
    end

    return false
end

#update(testmode = false) ⇒ Object

Update of binary archive



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# File 'lib/labrea.rb', line 60

def update(testmode=false)
end

#verify(testmode = false) ⇒ Object

Verification of binary archive



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# File 'lib/labrea.rb', line 64

def verify(testmode=false)
  @changeset.clear

  # Read checksums from file
  checksums = Hash.new
  File.open(checksum_fqn, "r") do |file|
    checksums = JSON.load(file)
  end

  checksums.each_pair do |k,v|
    if !@exclude.include? k
      Dir.chdir(@install_dir) do |path|
 if sha1sum(k) != v
   extract_file(k, testmode)
 end
      end
    end
  end

  return @changeset
end