Class: RPM::Dependency

Inherits:

Object

• Object
• RPM::Dependency

show all

Defined in:

lib/rpm/dependency.rb

Instance Attribute Summary (collapse)

• - (String) flags

  Dependency flags.

• - (Object) flagstag

  Returns the value of attribute flagstag.

• - (String) name

  Dependency name.

• - (Object) nametag

  Returns the value of attribute nametag.

• - (Package) owner

  Package this dependency belongs to.

• - (String) version

  Dependency version.

• - (Object) versiontag

  Returns the value of attribute versiontag.

Instance Method Summary (collapse)

• - (Boolean) eq?

  True if '=', '==' are used to compare the version.

• - (Boolean) ge?

  True if '>=' is used to compare the version.

• - (Boolean) gt?

  True if '>' or '>=' are used to compare the version.

• - (Dependency) initialize(name, version, flags, owner) constructor

  A new instance of Dependency.

• - (Boolean) le?

  True if '=<' is used to compare the version.

• - (Boolean) lt?

  True if '<' or '=<' are used to compare the version.

• - (Boolean) pre?

  True if this is a pre-requires.

• - (Boolean) satisfy?(other)

  True if other satisfies this dependency.

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# File 'lib/rpm/dependency.rb', line 20

def initialize(name, version, flags, owner)

  RPM::Utils.check_type(version, RPM::Version)
  
  @name = name
  @version = version
  @flags = flags
  @owner = owner
end

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# File 'lib/rpm/dependency.rb', line 12

def flags
  @flags
end

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# File 'lib/rpm/dependency.rb', line 18

def flagstag
  @flagstag
end

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# File 'lib/rpm/dependency.rb', line 8

def name
  @name
end

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# File 'lib/rpm/dependency.rb', line 16

def nametag
  @nametag
end

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# File 'lib/rpm/dependency.rb', line 14

def owner
  @owner
end

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# File 'lib/rpm/dependency.rb', line 10

def version
  @version
end

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# File 'lib/rpm/dependency.rb', line 17

def versiontag
  @versiontag
end

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# File 'lib/rpm/dependency.rb', line 67

def eq?
  flags & RPM::SENSE[:equal] 
end

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# File 'lib/rpm/dependency.rb', line 77

def ge?
  (flags & RPM::SENSE[:greater]) && (flags & RPMSENSE[:equal])
end

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# File 'lib/rpm/dependency.rb', line 62

def gt?
  flags & RPM::SENSE[:greater]
end

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# File 'lib/rpm/dependency.rb', line 72

def le?
  (flags & RPM::SENSE[:less]) && (flags & RPMSENSE[:equal])
end

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# File 'lib/rpm/dependency.rb', line 57

def lt?
  flags & RPM::SENSE[:less]
end

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# File 'lib/rpm/dependency.rb', line 82

def pre?
  flags & RPM::SENSE[:prereq] 
end

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# File 'lib/rpm/dependency.rb', line 32

def satisfy?(other)
  case other
    when RPM::Package then
      other.provides.each do |prov|
        return true if self.satisfy?(prov)
      end
      return false
    when RPM::Dependency then
      RPM::FFI.rpmdsCompare(
        RPM::FFI.rpmdsSingle(:providename, other.name,
          other.version.to_vre, other.flags),
        RPM::FFI.rpmdsSingle(:providename, name,
          version.to_vre, flags)) != 0
    when RPM::Version then
      RPM::FFI.rpmdsCompare(
        RPM::FFI.rpmdsSingle(:providename, name,
          other.to_vre, other.to_vre.empty? ? 0 : :equal),
        RPM::FFI.rpmdsSingle(:providename, name,
          version.to_vre, flags)) != 0
    else
      raise(TypeError, "#{other} is not a Version or Dependency")
    end
end