Package zeroinstall :: Package injector :: Module solver :: Class Solver

Class Solver

object --+
         |
        Solver

Chooses a set of implementations to satisfy the requirements of a program and its user. Typical use:

Create a Solver object and configure it
Call solve.
If any of the returned feeds_used are stale or missing, you may like to start downloading them
If it is 'ready' then you can download and run the chosen versions.

Instance Methods

__init__(self)
x.__init__(...) initializes x; see help(type(x)) for signature

source code

solve(self, root_interface, root_arch, command_name='run')
Get the best implementation of root_interface and all of its dependencies.

source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Instance Variables
{str: [(Implementation, comment)]}	details extra information, if record_details mode was used
set(str)	feeds_used the feeds which contributed to the choice in selections
{Interface: [(Implementation, str)]}	record_details whether to record information about unselected implementations
{model.Interface: [model.Dependency]}	requires the selected dependencies for each chosen version
selections.Selections	selections the chosen implementation of each interface

Properties
Inherited from `object`: `__class__`

Method Details

init(self)
(Constructor)

source code

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__: (inherited documentation)

solve(self, root_interface, root_arch, command_name='run')

source code

Get the best implementation of root_interface and all of its dependencies.

Parameters:

root_interface (str) - the URI of the program to be solved
root_arch (arch.Architecture) - the desired target architecture
command_name (str | None) - which <command> element to select

Postcondition: self.ready, self.selections and self.feeds_used are updated

Class Solver

__init__(self) (Constructor)

solve(self, root_interface, root_arch, command_name='run')

init(self)
(Constructor)