Class: RPM::DB

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/rpm/db.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.each ⇒ Object

Deprecated.

Use RPM::Transaction#each



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# File 'lib/rpm/db.rb', line 102

def self.each
  DB.open do |db|
    it = MatchIterator.from_ptr(RPM::C.rpmdbInitIterator(db.ptr, 0, nil, 0))
    if block_given?
      it.each do |pkg|
        yield pkg
      end
    end
  end
end

.open(_writable = false, root = '/', &block) ⇒ RPM::DB

The package database is opened, but transactional processing (@see RPM::DB#transaction) cannot be done for when writable is false. When writable is false then the generated object gets freezed.

Examples:

db = RPM::DB.open
db.each do |pkg|
  puts pkg.name
end

Parameters:

  • writable (Boolean) —

    Whether the database is writable. Default is false.

  • root (String) (defaults to: '/') —

    Root path for the database, default is empty.

Returns:



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# File 'lib/rpm/db.rb', line 74

def self.open(_writable = false, root = '/', &block)
  open_for_transaction(Transaction.new(root: root), writable: false, &block)
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/rpm/db.rb', line 52

def close
  RPM::C.rpmtsCloseDB(@ts.ptr)
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rpm/db.rb', line 56

def closed?
  ptr.null?
end

#count_packages(name) ⇒ Object

database

Returns:

  • number of instances of name in the



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# File 'lib/rpm/db.rb', line 115

def count_packages(name); end

#each {|Package| ... } ⇒ Object

Examples:

db.each do |pkg|
  puts pkg.name
end

Yields:

  • (Package) —

    Called for each package in the database



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# File 'lib/rpm/db.rb', line 43

def each(&block)
  @ts.each(&block)
end

#each_match(key, val) {|Package| ... } ⇒ Object

Examples:

RPM.transaction do |t|
  t.each_match(RPM::TAG_ARCH, "x86_64") do |pkg|
    puts pkg.name
  end
end

Parameters:

  • key (Number) —

    RPM tag key

  • val (String) —

    Value to match

Yields:

  • (Package) —

    Called for each match



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

def each_match(key, val, &block)
  @ts.each_match(key, val, &block)
end

#home ⇒ Object

Deprecated.

Not possible to get home value in newer RPM versions

Raises:

  • (NotImplementedError) 


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# File 'lib/rpm/db.rb', line 92

def home
  raise NotImplementedError
end

#init_iterator(tag, val) ⇒ RPM::MatchIterator

Returns Creates an iterator for tag and val.

Returns:



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

def init_iterator(tag, val)
  @ts.init_iterator(tag, val)
end

#root ⇒ String

Returns The root path of the database.

Returns:

  • (String) —

    The root path of the database



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# File 'lib/rpm/db.rb', line 97

def root
  RPM::C.rpmtsRootDir(@ts.ptr)
end