Class: Gembuild::Pkgbuild

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

Overview

Class used to create a PKGBUILD file for a rubygem.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(gemname, existing_pkgbuild = nil) ⇒ Gembuild::Pkgbuild

Create a new Pkgbuild instance.

Parameters:

  • gemname (String) —

    The rubygem for which to create a PKGBUILD.

  • existing_pkgbuild (nil, String) (defaults to: nil) —

    An old PKGBUILD that can be parsed for maintainer and contributor information.

Raises:



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# File 'lib/gembuild/pkgbuild.rb', line 93

def initialize(gemname, existing_pkgbuild = nil)
  unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
    fail Gembuild::InvalidPkgbuildError
  end

  @gemname = gemname
  @pkgname = "ruby-#{@gemname}"

  set_package_defaults

  no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
  parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
end

Instance Attribute Details

#arch ⇒ Array

Returns the supported architectures.

Returns:

  • (Array) —

    the supported architectures

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#checksum ⇒ String

Returns the sha256 sum of the gemfile.

Returns:

  • (String) —

    the sha256 sum of the gemfile

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#checksum_type ⇒ String

Returns the type of checksum (will always be sha256).

Returns:

  • (String) —

    the type of checksum (will always be sha256)

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#contributor ⇒ Array

Returns an array of the contributors to the pkgbuild.

Returns:

  • (Array) —

    an array of the contributors to the pkgbuild



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#depends ⇒ Array

Returns an array of the package’s dependencies (always ruby plus any other gems listed as dependencies).

Returns:

  • (Array) —

    an array of the package’s dependencies (always ruby plus any other gems listed as dependencies)

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#description ⇒ String

Returns the package description.

Returns:

  • (String) —

    the package description

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#epoch ⇒ Fixnum

Returns the package’s epoch value.

Returns:

  • (Fixnum) —

    the package’s epoch value

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#gemname ⇒ String

Returns the ruby gem for which to generate a PKGBUILD.

Returns:

  • (String) —

    the ruby gem for which to generate a PKGBUILD



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#license ⇒ Array

Returns an array of licenses for the gem.

Returns:

  • (Array) —

    an array of licenses for the gem

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#maintainer ⇒ String

Returns the package’s maintainer.

Returns:

  • (String) —

    the package’s maintainer



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#makedepends ⇒ Array

Returns a list of the dependencies needed to build the package (normally just the package rubygems).

Returns:

  • (Array) —

    a list of the dependencies needed to build the package (normally just the package rubygems)

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#noextract ⇒ Array

Returns a list of sources not to extract with bsdtar (namely, the gemfile).

Returns:

  • (Array) —

    a list of sources not to extract with bsdtar (namely, the gemfile)

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#options ⇒ Array

Returns a list of options to pass to makepkg.

Returns:

  • (Array) —

    a list of options to pass to makepkg

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#pkgname ⇒ String

Returns the name of the package (usually ruby-gem).

Returns:

  • (String) —

    the name of the package (usually ruby-gem)

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#pkgrel ⇒ Fixnum

Returns the release number of the package.

Returns:

  • (Fixnum) —

    the release number of the package

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#pkgver ⇒ Gem::Version

Returns the version of the gem.

Returns:

  • (Gem::Version) —

    the version of the gem

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#source ⇒ Array

Returns a list of sources.

Returns:

  • (Array) —

    a list of sources

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

#url ⇒ String

Returns the URL of the homepage of the gem.

Returns:

  • (String) —

    the URL of the homepage of the gem

See Also:



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# File 'lib/gembuild/pkgbuild.rb', line 78

class Pkgbuild
  attr_accessor :arch, :checksum, :checksum_type, :contributor, :depends,
                :description, :epoch, :gemname, :license, :maintainer,
                :makedepends, :noextract, :options, :pkgname, :pkgrel,
                :pkgver, :source, :url

  # Create a new Pkgbuild instance.
  #
  # @raise [Gembuild::InvalidPkgbuildError] if something other than a
  #   string or nil is passed as the existing pkgbuild
  #
  # @param gemname [String] The rubygem for which to create a PKGBUILD.
  # @param existing_pkgbuild [nil, String] An old PKGBUILD that can be
  #   parsed for maintainer and contributor information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def initialize(gemname, existing_pkgbuild = nil)
    unless existing_pkgbuild.nil? || existing_pkgbuild.is_a?(String)
      fail Gembuild::InvalidPkgbuildError
    end

    @gemname = gemname
    @pkgname = "ruby-#{@gemname}"

    set_package_defaults

    no_parse_pkgbuild = existing_pkgbuild.nil? || existing_pkgbuild.empty?
    parse_existing_pkgbuild(existing_pkgbuild) unless no_parse_pkgbuild
  end

  # Parse the old pkgbuild (if it exists) to get information about old
  # maintainers or contributors or about other dependencies that have been
  # added but that can not be scraped from rubygems.org.
  #
  # @param pkgbuild [String] The old PKGBUILD to parse.
  # @return [Hash] a hash containing the values scraped from the PKGBUILD
  def parse_existing_pkgbuild(pkgbuild)
    pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

    @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

    deps = parse_existing_dependencies(pkgbuild)
    deps.each do |dep|
      @depends << dep
    end

    { maintainer: maintainer, contributor: contributor, depends: deps }
  end

  # Create a new Pkgbuild instance with all information from the scraped
  # sources assigned.
  #
  # @param gemname [String] The rubygem for which to create a Pkgbuild.
  # @param existing_pkgbuild [String, nil] An old PKGBUILD that can be
  #   parsed for maintainer information.
  # @return [Gembuild::Pkgbuild] a new Pkgbuild instance
  def self.create(gemname, existing_pkgbuild = nil)
    pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

    pkgbuild.fetch_maintainer

    gem_details = Gembuild::GemScraper.new(gemname).scrape!
    aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

    pkgbuild.assign_gem_details(gem_details)
    pkgbuild.assign_aur_details(aur_details)

    pkgbuild
  end

  # Generate a PKGBUILD from the class using the pkgbuild erb template.
  #
  # @return [String] the PKGBUILD
  def render
    ERB.new(template, 0, '-').result(binding)
  end

  # Get the PKGBUILD erb template.
  #
  # @return [String] the pkgbuild erb template
  def template
    File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
  end

  # Write the PKGBUILD to disk.
  #
  # @param path [String] The directory to write the PKGBUILD.
  # @return [Fixnum] the number of bytes written
  def write(path = '')
    File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
  end

  # Obfuscate the maintainer/contributors' email addresses to (help to)
  # prevent spam.
  #
  # @param contact_information [String] The maintainer or contributor
  #   byline.
  # @return [String] the information with the @s and .s exchanged
  def format_contact_information(contact_information)
    contact_information.gsub('@', ' at ').gsub('.', ' dot ')
  end

  # Set the correct maintainer for the PKGBUILD.
  #
  # If the current maintainer is nil (no old pkgbuild was passed), then do
  # nothing. If there is a maintainer then compare it to the configured
  # maintainer and if they are different then make the old maintainer a
  # contributor before setting the correct maintainer. If the maintainer is
  # nil then just set the confgured maintainer.
  #
  # @return [String] the pkgbuild maintainer
  def fetch_maintainer
    configured_maintainer = Gembuild.configure
    m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
    new_maintainer = format_contact_information(m)

    unless maintainer.nil? || new_maintainer == maintainer
      @contributor.unshift(maintainer)
    end

    @maintainer = new_maintainer
  end

  # Add the data scraped from rubygems.org to the pkgbuild.
  #
  # @param details [Hash] The results from GemScraper scrape.
  # @return [void]
  def assign_gem_details(details)
    @pkgver = details.fetch(:version)
    @description = details.fetch(:description)
    @checksum = details.fetch(:checksum)
    @license = details.fetch(:license)
    @url = details.fetch(:homepage)

    details.fetch(:dependencies).each do |dependency|
      @depends << "ruby-#{dependency}"
    end
  end

  # Assign version information based on the information gathered from the
  # AUR.
  #
  # @param details [Hash, nil] The results from AurScraper scrape or nil if
  #   the package does not yet exist on the AUR.
  # @return [void]
  def assign_aur_details(details)
    if details.nil?
      @epoch = 0
      @pkgrel = 1
    else
      perform_version_reconciliation(details)
    end
  end

  private

  # Set the static variables of a new pkgbuild.
  #
  # @return [nil]
  def set_package_defaults
    @checksum_type = 'sha256'
    @arch = ['any']
    @makedepends = ['rubygems']
    @depends = ['ruby']
    @source = ['https://rubygems.org/downloads/$_gemname-$pkgver.gem']
    @noextract = ['$_gemname-$pkgver.gem']
    @options = ['!emptydirs']
    @contributor = []

    nil
  end

  # Scrape dependencies from an existing pkgbuild.
  #
  # @param pkgbuild [String] The PKGBUILD to search.
  # @return [Array] all existing dependencies that are not ruby or gems
  def parse_existing_dependencies(pkgbuild)
    match = pkgbuild.match(/^depends=\((.*?)\)$/m)[1]

    # First step is to remove the leading and trailing quotes. Then convert
    # all whitespace (newlines, tabs, multiple spaces, etc.) to single
    # spaces. Then, make sure that strings are quoted with ' not ".
    # Finally, split the packages into an array.
    deps = match[1..-2].gsub(/[[:space:]]+/, ' ').tr('"', "'").split("' '")

    deps.reject { |e| e.match(/^ruby/) }
  rescue
    []
  end

  # Assign the correct pkgrel and epoch depending on the current pkgver on
  # the AUR and the version of the gem from rubygems.org.
  #
  # @param details [Hash] The results from AurScraper scrape
  # @return [void]
  def perform_version_reconciliation(details)
    @epoch = details.fetch(:epoch)
    @pkgrel = 1

    if pkgver < details.fetch(:pkgver)
      @epoch += 1
    elsif @pkgver == details.fetch(:pkgver)
      @pkgrel = details.fetch(:pkgrel) + 1
    end
  end
end

Class Method Details

.create(gemname, existing_pkgbuild = nil) ⇒ Gembuild::Pkgbuild

Create a new Pkgbuild instance with all information from the scraped sources assigned.

Parameters:

  • gemname (String) —

    The rubygem for which to create a Pkgbuild.

  • existing_pkgbuild (String, nil) (defaults to: nil) —

    An old PKGBUILD that can be parsed for maintainer information.

Returns:



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# File 'lib/gembuild/pkgbuild.rb', line 133

def self.create(gemname, existing_pkgbuild = nil)
  pkgbuild = Pkgbuild.new(gemname, existing_pkgbuild)

  pkgbuild.fetch_maintainer

  gem_details = Gembuild::GemScraper.new(gemname).scrape!
  aur_details = Gembuild::AurScraper.new(pkgbuild.pkgname).scrape!

  pkgbuild.assign_gem_details(gem_details)
  pkgbuild.assign_aur_details(aur_details)

  pkgbuild
end

Instance Method Details

#assign_aur_details(details) ⇒ void

This method returns an undefined value.

Assign version information based on the information gathered from the AUR.

Parameters:

  • details (Hash, nil) —

    The results from AurScraper scrape or nil if the package does not yet exist on the AUR.



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# File 'lib/gembuild/pkgbuild.rb', line 222

def assign_aur_details(details)
  if details.nil?
    @epoch = 0
    @pkgrel = 1
  else
    perform_version_reconciliation(details)
  end
end

#assign_gem_details(details) ⇒ void

This method returns an undefined value.

Add the data scraped from rubygems.org to the pkgbuild.

Parameters:

  • details (Hash) —

    The results from GemScraper scrape.



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# File 'lib/gembuild/pkgbuild.rb', line 204

def assign_gem_details(details)
  @pkgver = details.fetch(:version)
  @description = details.fetch(:description)
  @checksum = details.fetch(:checksum)
  @license = details.fetch(:license)
  @url = details.fetch(:homepage)

  details.fetch(:dependencies).each do |dependency|
    @depends << "ruby-#{dependency}"
  end
end

#fetch_maintainer ⇒ String

Set the correct maintainer for the PKGBUILD.

If the current maintainer is nil (no old pkgbuild was passed), then do nothing. If there is a maintainer then compare it to the configured maintainer and if they are different then make the old maintainer a contributor before setting the correct maintainer. If the maintainer is nil then just set the confgured maintainer.

Returns:

  • (String) —

    the pkgbuild maintainer



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# File 'lib/gembuild/pkgbuild.rb', line 188

def fetch_maintainer
  configured_maintainer = Gembuild.configure
  m = "#{configured_maintainer[:name]} <#{configured_maintainer[:email]}>"
  new_maintainer = format_contact_information(m)

  unless maintainer.nil? || new_maintainer == maintainer
    @contributor.unshift(maintainer)
  end

  @maintainer = new_maintainer
end

#format_contact_information(contact_information) ⇒ String

Obfuscate the maintainer/contributors’ email addresses to (help to) prevent spam.

Parameters:

  • contact_information (String) —

    The maintainer or contributor byline.

Returns:

  • (String) —

    the information with the @s and .s exchanged



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# File 'lib/gembuild/pkgbuild.rb', line 175

def format_contact_information(contact_information)
  contact_information.gsub('@', ' at ').gsub('.', ' dot ')
end

#parse_existing_pkgbuild(pkgbuild) ⇒ Hash

Parse the old pkgbuild (if it exists) to get information about old maintainers or contributors or about other dependencies that have been added but that can not be scraped from rubygems.org.

Parameters:

  • pkgbuild (String) —

    The old PKGBUILD to parse.

Returns:

  • (Hash) —

    a hash containing the values scraped from the PKGBUILD



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# File 'lib/gembuild/pkgbuild.rb', line 113

def parse_existing_pkgbuild(pkgbuild)
  pkgbuild.match(/^# Maintainer: (.*)$/) { |m| @maintainer = m[1] }

  @contributor = pkgbuild.scan(/^# Contributor: (.*)$/).flatten

  deps = parse_existing_dependencies(pkgbuild)
  deps.each do |dep|
    @depends << dep
  end

  { maintainer: maintainer, contributor: contributor, depends: deps }
end

#render ⇒ String

Generate a PKGBUILD from the class using the pkgbuild erb template.

Returns:

  • (String) —

    the PKGBUILD



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# File 'lib/gembuild/pkgbuild.rb', line 150

def render
  ERB.new(template, 0, '-').result(binding)
end

#template ⇒ String

Get the PKGBUILD erb template.

Returns:

  • (String) —

    the pkgbuild erb template



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# File 'lib/gembuild/pkgbuild.rb', line 157

def template
  File.read(File.join(File.dirname(__FILE__), 'pkgbuild.erb'))
end

#write(path = '') ⇒ Fixnum

Write the PKGBUILD to disk.

Parameters:

  • path (String) (defaults to: '') —

    The directory to write the PKGBUILD.

Returns:

  • (Fixnum) —

    the number of bytes written



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# File 'lib/gembuild/pkgbuild.rb', line 165

def write(path = '')
  File.write(File.join(File.expand_path(path), 'PKGBUILD'), render)
end