Class: Buildr::Unzip

Inherits:
Object show all
Defined in:
lib/buildr4osgi/osgi/packaging.rb

Overview

monkey patch the Unzip task to support unzipping tgz TODO: find out how to apply the patterns (include/exclude) and move this to buildr eventually

Instance Method Summary collapse

Instance Method Details

#extract ⇒ Object 



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# File 'lib/buildr4osgi/osgi/packaging.rb', line 32

def extract
  # If no paths specified, then no include/exclude patterns
  # specified. Nothing will happen unless we include all files.
  if @paths.empty?
    @paths[nil] = FromPath.new(self, nil)
  end

  # Otherwise, empty unzip creates target as a file when touching.
  mkpath target.to_s
  zip_file_path = zip_file.to_s
  if zip_file_path.match /\.[t?]gz$/ or zip_file_path.match /\.tar\.gz$/
    #un-tar.gz
    @paths.each do |path, patterns|
      patterns.include = ['*'] if patterns.include.nil?
      patterns.exclude = [] if patterns.exclude.nil?
    end
    Zlib::GzipReader.open(zip_file_path) { |tar|
      Archive::Tar::Minitar::Input.open(tar) do |inp|
      inp.each do |entry|
        if included?(entry.full_name)
          trace "Extracting #{entry.full_name}"
          inp.extract_entry(target.to_s, entry)
        end
      end
    end
    }
  else
    Zip::ZipFile.open(zip_file.to_s) do |zip|
      entries = zip.collect
      @paths.each do |path, patterns|
        patterns.map(entries).each do |dest, entry|
          next if entry.directory?
          dest = File.expand_path(dest, target.to_s)
          trace "Extracting #{dest}"
          mkpath File.dirname(dest) rescue nil
          entry.restore_permissions = true
          entry.extract(dest) { true }
        end
      end
    end
  end
  # Let other tasks know we updated the target directory.
  touch target.to_s
end

#included?(entry_name) ⇒ Boolean

reads the includes/excludes and apply them to the entry_name

Returns:

  • (Boolean) 


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# File 'lib/buildr4osgi/osgi/packaging.rb', line 78

def included?(entry_name)
  @paths.each do |path, patterns|
    return true if path.nil?
    if entry_name =~ /^#{path}/
      short = entry_name.sub(path, '')
      if patterns.include.any? { |pattern| File.fnmatch(pattern, entry_name) } &&
        !patterns.exclude.any? { |pattern| File.fnmatch(pattern, entry_name) }
       # trace "tar_entry.full_name " + entry_name + " is included"
        return true
      end
    end
  end
 # trace "tar_entry.full_name " + entry_name + " is excluded"
  return false
end