Class: Depot::DebPackage

Inherits:
Object
  • Object
show all
Defined in:
lib/depot/packages/deb.rb

Defined Under Namespace

Classes: FormatError

Constant Summary collapse

SCRIPT_NAMES = 
%w[preinst postinst prerm postrm config].freeze
DESKTOP_PATH = 
%r{\A(?:\./)?usr/share/applications/[^/]+\.desktop\z}
ICON_PATH = 
%r{/icons/hicolor/([^/]+)/apps/([^/]+)\.(png|svg|xpm)\z}i

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ DebPackage

Returns a new instance of DebPackage.



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# File 'lib/depot/packages/deb.rb', line 16

def initialize(path)
  @path = path
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/depot/packages/deb.rb', line 14

def path
  @path
end

Instance Method Details

#ar_members ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 81

def ar_members
  @ar_members ||= parse_ar.keys
end

#control_archive_name ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 73

def control_archive_name
  @control_archive_name ||= archive_name("control.tar")
end

#control_fields ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 30

def control_fields
  @control_fields ||= parse_control(read_control_file("control").to_s)
end

#control_members ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 34

def control_members
  @control_members ||= list_tar(control_archive_name)
end

#data_archive_name ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 77

def data_archive_name
  @data_archive_name ||= archive_name("data.tar")
end

#data_members ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 38

def data_members
  @data_members ||= list_tar(data_archive_name)
end

#debian_binary ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 26

def debian_binary
  member("debian-binary")&.strip
end

#desktop_entries ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 48

def desktop_entries
  data_members.map { |entry| clean_entry(entry) }
              .select { |entry| entry.end_with?(".desktop") }
end

#executable_entries ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 67

def executable_entries
  data_members.map { |entry| clean_entry(entry) }
              .select { |entry| entry.start_with?("usr/bin/", "usr/local/bin/", "opt/") }
              .reject { |entry| entry.end_with?("/") }
end

#extract_data_to(destination) ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 89

def extract_data_to(destination)
  FileUtils.mkdir_p(destination)
  assert_safe_entries!(data_members)
  with_member_file(data_archive_name) do |archive|
    stdout, stderr, status = Open3.capture3(
      "tar",
      *tar_options(data_archive_name),
      "-xf",
      archive,
      "-C",
      destination
    )
    raise FormatError, "Could not extract data archive: #{stderr.empty? ? stdout : stderr}" unless status.success?
  end
end

#icon_entries ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 57

def icon_entries
  data_members.map { |entry| clean_entry(entry) }
              .select { |entry| entry.match?(ICON_PATH) }
end

#image_entries ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 62

def image_entries
  data_members.map { |entry| clean_entry(entry) }
              .select { |entry| entry.match?(/\.(png|svg|xpm)\z/i) }
end

#maintainer_scripts ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 42

def maintainer_scripts
  control_members.map { |entry| clean_entry(entry) }
                 .select { |entry| SCRIPT_NAMES.include?(File.basename(entry)) }
                 .uniq
end

#primary_desktop_entry ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 53

def primary_desktop_entry
  desktop_entries.min_by { |entry| desktop_score(entry) }
end

#read_data_entry(entry) ⇒ Object 



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# File 'lib/depot/packages/deb.rb', line 85

def read_data_entry(entry)
  read_tar_entry(data_archive_name, entry)
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/depot/packages/deb.rb', line 20

def valid?
  debian_binary && control_archive_name && data_archive_name
rescue FormatError
  false
end