Source code for orion.core.evc.conflicts

# -*- coding: utf-8 -*-
# pylint: disable=too-many-lines,arguments-differ
"""
Description and resolution of configuration conflicts
=====================================================

Conflicts between a parent experiment and a child configuration exist in many different forms. This
module provides the function `detect_conflicts` to automatically detect them. Any conflict type
which inherits from class `Conflict` is used to detect corresponding conflicts. These conflicts
can than be used to generate resolutions which will generate adapters to make trials of
both experiments compatible when applicable.

Conflicts objects know how to resolve themselves but may lack information for doing so.  For
instance `ExperimentNameConflict` knows it may only be resolved with an `ExperimentNameResolution`,
but it cannot do so unless it is given a new name to instantiate the resolution.

Conflict objects may build different resolutions based on the input given. For instance
`MissingDimensionConflict` may instantiate a `RenameDimensionResolution` if a `NewDimensionConflict`
is passed to `try_resolve`, otherwise the resolution will be `RemoveDimensionResolution`.

In short, conflict knows:

#. How to detect themselves in pair old_config, new_config (`Conflict.detect()`)
#. How to resolve themselves (but may lack information for doing so) (`conflict.try_resolve()`)
#. How to build a diff for user interface (`conflict.diff`)
#. How to build a string to represent themselves in user interface (`repr(conflict)`)
#. How to find resolutions markers and their corresponding arguments
   (`conflict.get_marked_arguments`)

while resolution knows:

#. How to create adapters (`resolution.get_adapters()`)
#. How to find marked arguments for themselves (determining if this resolution was marked by user)
   (`resolution.find_marked_argument()`)
#. How to revert themselves and resetting the corresponding conflicts (`resolution.revert()`)
#. How to validate themselves on instantiation (`resolution.validate()`)
#. How to build a string to represent themselves in user interface (`repr(resolution)`)
   (note: this string is the one a user would use to mark the resolution in command line or in
   configuration file)

The class Conflicts is provided for convenience. It provides interface to register, fetch or
deprecate (remove) conflicts. Additionaly, it provides a helper method with wraps `try_resolve` of
the Conflict objects, handling invalid resolution errors or additional new conflicts
created by resolutions. For instance, a `RenameDimensionResolution` may create a new
`ChangedDimensionConflict` if the new name is associated to a different prior than the one
of the old name.
"""

import copy
import logging
import pprint
import traceback
from abc import ABCMeta, abstractmethod

import orion.core
from orion.algo.space import Dimension
from orion.core.evc import adapters
from orion.core.io.orion_cmdline_parser import OrionCmdlineParser
from orion.core.io.space_builder import SpaceBuilder
from orion.core.utils.diff import colored_diff
from orion.core.utils.format_trials import standard_param_name
from orion.storage.base import get_storage

log = logging.getLogger(__name__)


def _create_param(dimension, default_value):
    """Create a parameter dictionary based on dimension and default_value"""
    return dict(name=dimension.name, type=dimension.type, value=default_value)


def _build_extended_user_args(config):
    """Return a list of user arguments augmented with key-value pairs found in
    user's script's configuration file.
    """
    if "user_args" not in config["metadata"]:
        return []

    user_args = config["metadata"]["user_args"]

    # No need to pass config_prefix because we have access to everything
    # required in config[metadata][parser] (parsed data)
    parser = OrionCmdlineParser()
    parser.set_state_dict(config["metadata"]["parser"])

    return user_args + [
        standard_param_name(key) + value
        for key, value in parser.config_file_data.items()
    ]


def _build_space(config):
    """Build an optimization space based on given configuration"""
    space_builder = SpaceBuilder()
    space_config = config["space"]
    space = space_builder.build(space_config)

    return space


[docs]def detect_conflicts(old_config, new_config, branching=None): """Generate a Conflicts object with all conflicts found in pair (old_config, new_config)""" conflicts = Conflicts() for conflict_class in sorted( Conflict.__subclasses__(), key=lambda cls: cls.__name__ ): for conflict in conflict_class.detect(old_config, new_config, branching): conflicts.register(conflict) return conflicts
[docs]class Conflicts(object): """Handler of a list of conflicts Registers, deprecate, resolve and fetch conflicts. Revert and fetch corresponding resolutions. The helper method `try_resolve` wraps `Conflict.try_resolve` objects, handling invalid resolution errors messages and adding to its list additional new conflicts created by resolutions. Attributes ---------- conflicts: list of `Conflict` List of conflicts which may be resolved or not. """ def __init__(self): """Initialize empty list of conflicts""" self.conflicts = []
[docs] def register(self, conflict): """Add a new conflict to the list of conflicts""" self.conflicts.append(conflict)
[docs] def revert(self, resolution_or_name): """Revert a resolution and deprecate conflicts if applicable""" name = str(resolution_or_name) resolution_strings = list(map(str, (c.resolution for c in self.get_resolved()))) resolution = self.get_resolved()[resolution_strings.index(name)].resolution self.deprecate(resolution.revert())
def _get(self, callback=None): """Fetch conflicts for which callback return True if callback is given, else return all""" return [ conflict for conflict in self.conflicts if (callback is None or callback(conflict)) ]
[docs] def get(self, types=(), dimension_name=None, callback=None): """Fetch conflicts Parameters ---------- types: tuple of Conflict types List of conflict types to fetch dimension_name: None or string name of a dimension to fetch. If not None, will raise an error if no conflict found. callback: None or callable object If not None, only conflict for which the callback return True will be returned by get() Raises ------ ValueError If argument dimension_name is not None and no conflict is found. """ def wrap(types, dimension_name, callback): """Wrap types, dimension_name and callback inside another callback""" def _callback(conflict): if callback is not None and not callback(conflict): return False if types and not isinstance(conflict, tuple(types)): return False if dimension_name is not None and ( not hasattr(conflict, "dimension") or standard_param_name(conflict.dimension.name) != dimension_name ): return False return True return _callback found_conflicts = self._get(wrap(types, dimension_name, callback)) if dimension_name is not None and not found_conflicts: raise ValueError( "Dimension name '{}' not found in conflicts".format(dimension_name) ) return found_conflicts
[docs] def get_remaining(self, types=(), dimension_name=None, callback=None): """Fetch non resolved conflicts .. note:: See :meth:`orion.core.evc.conflicts.Conflicts.get` for more information. """ def _is_not_resolved(conflict): return not conflict.is_resolved and (callback is None or callback(conflict)) return self.get(types, dimension_name, callback=_is_not_resolved)
[docs] def get_resolved(self, types=(), dimension_name=None, callback=None): """Fetch resolved conflicts .. note:: See :meth:`orion.core.evc.conflicts.Conflicts.get` for more information. """ def _is_resolved(conflict): return conflict.is_resolved and (callback is None or callback(conflict)) return self.get(types, dimension_name, callback=_is_resolved)
[docs] def get_resolutions(self, types=(), dimension_name=None, callback=None): """Fetch resolutions Iterate over resolved conflicts and return their resolutions .. note:: Some resolutions resolve many conflicts. This method only returns unique resolutions. .. note:: See :meth:`orion.core.evc.conflicts.Conflicts.get` for more information. """ resolutions = set() for conflict in self.get_resolved(types, dimension_name, callback): if conflict.resolution not in resolutions: resolutions.add(conflict.resolution) yield conflict.resolution
# API section @property def are_resolved(self): """Return True if all the current conflicts have been resolved""" return all(conflict.is_resolved for conflict in self.conflicts)
[docs] def deprecate(self, conflicts): """Remove given conflicts from the internal list of conflicts""" for conflict in conflicts: self.conflicts.pop(self.conflicts.index(conflict))
[docs] def try_resolve(self, conflict, *args, **kwargs): """Wrap call to conflict.try_resolve Catch errors on `conflict.try_resolve` and print traceback if argument `silence_errors` is False. Resolutions may generate side-effect conflicts. In such case, they are added to interval's list of conflicts. Parameters ---------- conflict: `orion.ore.evc.conflicts.Conflict` Conflict object to call `try_resolve`. silence_errors: bool If True, errors raised on execution of conflict.try_resolve will be catched and silenced. If False, errors will be catched and traceback will be printed before methods return None. Defaults to False *args: Arguments to pass to `conflict.try_resolve` **kwargs: Keyword arguments to pass to `conflict.try_resolve` """ silence_errors = kwargs.pop("silence_errors", False) try: resolution = conflict.try_resolve(*args, **kwargs) except KeyboardInterrupt: raise except Exception: # pylint:disable=broad-except conflict.resolution = None conflict._is_resolved = None # pylint:disable=protected-access if not silence_errors: print(traceback.format_exc()) return None if resolution: self.conflicts += resolution.new_conflicts return resolution
[docs]class Conflict(object, metaclass=ABCMeta): """Representation of a conflict between two configurations This object is used to embody a conflict during a branching event and provides means to resolve itself and to represent itself in user interface. A conflict must provide implementations of: #. `detect()` -- How it is detected in a pair (old_config, new_config). #. `try_resolve()` -- How to resolve itself. #. `__repr__()` -- How to represent itself in user interface. Additionaly, it may also provide implementations of: #. `diff()` -- How to compute diff string. #. `get_marked_arguments()` -- How to find resolutions markers and their corresponding arguments in `new_config`. Attributes ---------- old_config: dict Configuration of the parent experiment new_config: dict Configuration of the child experiment resolution: None or `orion.core.evc.conflicts.Resolution` None if not resolved or a `Resolution` object. Note that deprecated conflicts may be marked as resolved with `_is_resolved = True` even though `resolution` is `None`. """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect all conflicts in given pair (old_config, new_config) and return a list of them :param branching_config: """ pass
def __init__(self, old_config, new_config): """Initialize conflict as non-resolved""" self.old_config = old_config self.new_config = new_config self._is_resolved = False self.resolution = None @property def is_resolved(self): """Return True if conflict is set as resolved or if it has a resolution""" return self._is_resolved or self.resolution is not None # pylint:disable=unused-argument,no-self-use
[docs] def get_marked_arguments(self, conflicts, **branching_kwargs): """Return arguments from marked resolutions in new configuration Some conflicts may be passed arguments with their marker to automate conflict resolution. For instance, a renaming resolution requires the name of a new dimension. In such case, the conflict for `missing_dim` would find `~missing_dim~>new_dim` in the user command line of configuration arguments, fetch `new_dim` from `conflicts` and return the dictionary of arguments `{'new_dimension_conflict': new_dimension_conflict}`. Parameters ---------- conflicts: `orion.core.evc.conflicts.Conflicts` Handler of the list of conflicts. Returns ------- dict Marked arguments for `conflict.try_resolve()`, which may latter be passed as `**kwargs`. """ return {}
[docs] @abstractmethod def try_resolve(self): """Try to create a resolution Conflict is then marked as resolved and its attribute `resolution` now points to the resolution. Returns ------- None or `orion.core.evc.conflicts.Resolution` Returns None if the conflict is already resolved, otherwise it returns a resolution object if it is successful. Raises ------ ValueError If the resolution cannot be created without arguments or if the arguments passed are not valid. This is specific to each child of `Conflict` """ pass
@property def diff(self): """Produce human-readable differences Returns ------- None or str Returns None if the conflict cannot produce diffs, otherwise it returns the diff as a string (possibly multi-line). """ return None # def get_hint(self): # """Return a possible resolution as a string for user interface""" # resolution = self.try_resolve() # hint = "Try 'set {}'".format(str(resolution)) # resolution.revert() # return hint @abstractmethod def __repr__(self): """Reprensentation of the conflict for user interface""" pass
[docs]class Resolution(object, metaclass=ABCMeta): """Representation of a resolution for a conflict between two configurations This object is used to embody a resolution of a conflict during a branching event and provides means to validate itself, produce side-effect conflicts, detect corresponding user markers, produce corresponding adapters and represent itself in user interface. The string representing a resolution is precisely what a user should type in command-line to resolve automatically a conflict. A resolution must provide implementations of: #. `get_adapters()` -- How to adapt trials from the two experiments. #. `__repr__()` -- How to represent itself in user interface. Note: this should correspond to what user should enter in command-line for automatic resolution. Additionaly, it may also provide implementations of: #. `revert()` -- How to revert the resolution and reset corresponding conflicts #. `_validate()` -- How to validate if arguments for the resolution are valid. #. `find_marked_argument()` -- How to find marked arguments in commandline call or script config Note that resolutions do not modify the configuration, with the exception of experiment name resolution, hence there is no support for diffs inside resolutions. The only diffs are between the two configurations, hence they are defined inside the conflicts. Attributes ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. new_conflicts: list of `orion.core.evc.conflicts.Conflict` The side-effect conflicts cause by this resolution. MARKER: None or string The special marker if resolution is intended for dimension conflicts, otherwise None ARGUMENT: None or string The command-line argument if the resolution is not intended for dimension conflicts. """ MARKER = None ARGUMENT = None def __init__(self, conflict): """Initialize resolution and mark conflict as resolved""" self.conflict = conflict self.new_conflicts = [] conflict.resolution = self
[docs] def validate(self, *args, **kwargs): """Wrap validate method to revert resolution on invalid arguments""" try: self._validate(*args, **kwargs) except Exception: self.revert() raise
def _validate(self, *args, **kwargs): """Validate arguments and raise a ValueError if they are invalid""" pass
[docs] @classmethod def namespace(cls): """Return namespace corresponding to self.ARGUMENT ARGUMENT is a command line argument, thus something in the style of `--code-change-type`. When arguments are passed they are saved in namespace in the style of `code_change_type`. This property converts command-line style to namespace style. """ if not cls.ARGUMENT: return None return cls.ARGUMENT.lstrip("-").replace("-", "_")
[docs] def revert(self): """Reset conflict as well as side-effect conflicts and return the latter for deprecation""" self.conflict.resolution = None return []
[docs] @abstractmethod def get_adapters(self): """Return adapters corresponding to the resolution""" pass
@abstractmethod def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ pass
[docs] def find_marked_argument(self): """Find commandline argument on configuration argument which marks this type of resolution for automatic resolution """ new_config = self.conflict.new_config marked_argument = None if self.MARKER: for arg in _build_extended_user_args(new_config): if arg.lstrip("-").startswith(self.prefix): marked_argument = arg break else: marked_argument = new_config.get(self.namespace(), None) return marked_argument
@property def is_marked(self): """If this resolution is specifically marked in commandline arguments or configuration arguments """ return self.find_marked_argument() not in [None, False]
[docs]class NewDimensionConflict(Conflict): """Representation of a new dimension conflict Attributes ---------- dimension: `orion.algo.space.Dimension` Dimension object which is defined in new_config but not in old_config. prior: string String representing the prior of the dimension .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect all new dimensions in `new_config` based on `old_config` :param branching_config: """ old_space = _build_space(old_config) new_space = _build_space(new_config) for name, dim in new_space.items(): new_prior = dim.get_prior_string() if name not in old_space: yield cls(old_config, new_config, dim, new_prior)
def __init__(self, old_config, new_config, dimension, prior): """Initialize conflict as non-resolved""" super(NewDimensionConflict, self).__init__(old_config, new_config) self.dimension = dimension self.prior = prior
[docs] def try_resolve(self, default_value=Dimension.NO_DEFAULT_VALUE): """Try to create a resolution AddDimensionResolution Parameters ---------- default_value: object Default value for the new dimension. Defaults to ``Dimension.NO_DEFAULT_VALUE``. Raises ------ ValueError If default_value is invalid for the corresponding dimension. """ if self.is_resolved: return None return self.AddDimensionResolution(self, default_value)
@property def diff(self): """Produce human-readable differences""" return colored_diff("", self.dimension.get_string()) def __repr__(self): """Reprensentation of the conflict for user interface""" return "New {0}".format(standard_param_name(self.dimension.name))
[docs] class AddDimensionResolution(Resolution): """Representation of a new dimension resolution Attributes ---------- default_value: object Default value for the new dimension. .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ MARKER = "~+" def __init__(self, conflict, default_value=Dimension.NO_DEFAULT_VALUE): """Initialize resolution and mark conflict as resolved Parameters ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. default_value: object Default value for the new dimension. Defaults to ``Dimension.NO_DEFAULT_VALUE``. If ``Dimension.NO_DEFAULT_VALUE``, default_value from corresponding dimension will be used. Raises ------ ValueError If default_value is invalid for the corresponding dimension. """ super(NewDimensionConflict.AddDimensionResolution, self).__init__(conflict) if default_value is Dimension.NO_DEFAULT_VALUE: default_value = conflict.dimension.default_value else: default_value = conflict.dimension.cast(default_value) self.validate(default_value) self.default_value = default_value def _validate(self, default_value): """Validate default value is NO_DEFAULT_VALUE or is in dimension's interval""" if (default_value is not Dimension.NO_DEFAULT_VALUE) and ( default_value not in self.conflict.dimension ): raise ValueError( "Default value `{}` is outside of dimension's prior interval `{}`".format( default_value, self.conflict.prior ) )
[docs] def get_adapters(self): """Return DimensionAddition adapter""" default_param = _create_param(self.conflict.dimension, self.default_value) return [adapters.DimensionAddition(default_param)]
@property def prefix(self): """Build the prefix including the marker""" return "{0}{1}".format( standard_param_name(self.conflict.dimension.name), self.MARKER ) @property def new_prior(self): """Build the new prior string, including the default value""" tmp_dim = copy.deepcopy(self.conflict.dimension) # pylint:disable=protected-access tmp_dim._default_value = self.default_value return tmp_dim.get_prior_string() def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0}{1}".format(self.prefix, self.new_prior)
[docs]class ChangedDimensionConflict(Conflict): """Representation of a changed prior conflict .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect all changed dimensions in `new_config` based on `old_config` :param branching_config: """ old_space = _build_space(old_config) new_space = _build_space(new_config) for name, dim in new_space.items(): if name not in old_space: continue new_prior = dim.get_prior_string() old_prior = old_space[name].get_prior_string() if new_prior != old_prior: yield cls(old_config, new_config, dim, old_prior, new_prior)
def __init__(self, old_config, new_config, dimension, old_prior, new_prior): """Initialize conflict as non-resolved""" super(ChangedDimensionConflict, self).__init__(old_config, new_config) self.dimension = dimension self.old_prior = old_prior self.new_prior = new_prior
[docs] def try_resolve(self): """Try to create a resolution ChangeDimensionResolution""" if self.is_resolved: return None return self.ChangeDimensionResolution(self)
@property def diff(self): """Produce human-readable differences""" return colored_diff(self.old_prior, self.new_prior) def __repr__(self): """Reprensentation of the conflict for user interface""" return "{0}~{1} != {0}~{2}".format( standard_param_name(self.dimension.name), self.old_prior, self.new_prior )
[docs] class ChangeDimensionResolution(Resolution): """Representation of a changed prior resolution .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ MARKER = "~+"
[docs] def get_adapters(self): """Return DimensionPriorChange adapter""" return [ adapters.DimensionPriorChange( self.conflict.dimension.name, self.conflict.old_prior, self.conflict.new_prior, ) ]
@property def prefix(self): """Build the new prior string, including the default value""" return "{0}{1}".format( standard_param_name(self.conflict.dimension.name), self.MARKER ) def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0}{1}".format(self.prefix, self.conflict.new_prior)
[docs]class MissingDimensionConflict(Conflict): """Representation of a new dimension conflict Attributes ---------- dimension: `orion.algo.space.Dimension` Dimension object which is defined in new_config but not in old_config. prior: string String representing the prior of the dimension .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect all missing dimensions in `new_config` based on `old_config` :param branching_config: """ for conflict in NewDimensionConflict.detect(new_config, old_config): yield cls(old_config, new_config, conflict.dimension, conflict.prior)
def __init__(self, old_config, new_config, dimension, prior): """Initialize conflict as non-resolved""" super(MissingDimensionConflict, self).__init__(old_config, new_config) self.dimension = dimension self.prior = prior
[docs] def get_marked_arguments(self, conflicts, **branching_kwargs): """Find and return marked arguments for remove or rename resolution .. seealso:: :meth:`orion.core.evc.conflicts.Conflict.get_marked_arguments` """ marked_remove_arguments = self.get_marked_remove_arguments(conflicts) if marked_remove_arguments: return marked_remove_arguments return self.get_marked_rename_arguments(conflicts)
# pylint:disable=unused-argument
[docs] def get_marked_remove_arguments(self, conflicts): """Find and return marked arguments for remove resolution .. seealso:: :meth:`orion.core.evc.conflicts.Conflict.get_marked_arguments` """ if self.is_resolved: return {} remove_dimension_resolution = copy.deepcopy(self).try_resolve() if not remove_dimension_resolution: return {} arguments = remove_dimension_resolution.find_marked_argument() if arguments: new_default_value = arguments.split( MissingDimensionConflict.RemoveDimensionResolution.MARKER )[1] if not new_default_value: new_default_value = Dimension.NO_DEFAULT_VALUE else: new_default_value = self.dimension.cast(new_default_value) return {"default_value": new_default_value} return {}
[docs] def get_marked_rename_arguments(self, conflicts): """Find and return marked arguments for rename resolution .. seealso:: :meth:`orion.core.evc.conflicts.Conflict.get_marked_arguments` """ new_dimension_conflicts = conflicts.get([NewDimensionConflict]) if not new_dimension_conflicts: return {} resolution = copy.deepcopy(self).try_resolve( new_dimension_conflict=copy.deepcopy(new_dimension_conflicts[0]) ) if not resolution: return {} arguments = resolution.find_marked_argument() if arguments: new_dimension_name = "~>".join(arguments.split("~>")[1:]) try: conflict = conflicts.get( [NewDimensionConflict], dimension_name=new_dimension_name )[0] except ValueError as e: if "Dimension name '{}' not found".format( new_dimension_name ) not in str(e): return {} raise if conflict.is_resolved: conflicts.revert(str(conflict.resolution)) return {"new_dimension_conflict": conflict} return {}
[docs] def try_resolve( self, new_dimension_conflict=None, default_value=Dimension.NO_DEFAULT_VALUE ): """Try to create a resolution RenameDimensionResolution of RemoveDimensionResolution Parameters ---------- new_dimension_conflict: None or `orion.core.evc.conflicts.NewDimensionConflict` Dimension used for a rename resolution. If None, a remove resolution will be created instead. default_value: object Default value for the missing dimension. Defaults to ``Dimension.NO_DEFAULT_VALUE``. If ``Dimension.NO_DEFAULT_VALUE``, default_value from corresponding dimension will be used. This argument is ignored if new_dimension_conflict is not None. Raises ------ ValueError If default_value is invalid for the corresponding dimension. """ if self.is_resolved: return None if new_dimension_conflict: return MissingDimensionConflict.RenameDimensionResolution( self, new_dimension_conflict ) return MissingDimensionConflict.RemoveDimensionResolution(self, default_value)
@property def diff(self): """Produce human-readable differences""" return colored_diff(self.dimension.get_string(), "") def __repr__(self): """Reprensentation of the conflict for user interface""" return "Missing {0}".format(standard_param_name(self.dimension.name))
[docs] class RenameDimensionResolution(Resolution): """Representation of a rename dimension resolution Attributes ---------- new_dimension_conflict: `orion.core.evc.conflicts.NewDimensionConflict` New dimension to rename to. .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ MARKER = "~>" def __init__(self, conflict, new_dimension_conflict): """Initialize resolution and mark conflict as resolved .. note:: Will create a side-effect conflict if the new dimension have a different prior than the old dimension. Parameters ---------- new_dimension_conflict: `orion.core.evc.conflicts.NewDimensionConflict` Dimension used for a rename resolution. """ super(MissingDimensionConflict.RenameDimensionResolution, self).__init__( conflict ) self.new_dimension_conflict = new_dimension_conflict new_dimension_conflict.resolution = self if self.conflict.prior != new_dimension_conflict.prior: changed_dimension_conflict = ChangedDimensionConflict( self.conflict.old_config, self.conflict.new_config, new_dimension_conflict.dimension, self.conflict.prior, new_dimension_conflict.prior, ) self.new_conflicts.append(changed_dimension_conflict)
[docs] def revert(self): """Reset conflict as well as side-effect conflicts and return the latter for deprecation """ self.conflict.resolution = None self.new_dimension_conflict.resolution = None deprecated_conflicts = self.new_conflicts if deprecated_conflicts: # pylint:disable=protected-access deprecated_conflicts[0]._is_resolved = True self.new_conflicts = [] return deprecated_conflicts
[docs] def get_adapters(self): """Return DimensionRenaming adapter""" return [ adapters.DimensionRenaming( self.conflict.dimension.name, self.new_dimension_conflict.dimension.name, ) ]
@property def prefix(self): """Build the new prior string, including the default value""" return "{0}{1}".format( standard_param_name(self.conflict.dimension.name), self.MARKER ) def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0}{1}".format( self.prefix, standard_param_name(self.new_dimension_conflict.dimension.name), )
[docs] class RemoveDimensionResolution(Resolution): """Representation of a remove dimension resolution Attributes ---------- default_value: object Default value for the missing dimension. .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ MARKER = "~-" def __init__(self, conflict, default_value=Dimension.NO_DEFAULT_VALUE): """Initialize resolution and mark conflict as resolved Parameters ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. default_value: object Default value for the missing dimension. Defaults to ``Dimension.NO_DEFAULT_VALUE``. If ``Dimension.NO_DEFAULT_VALUE``, default_value from corresponding dimension will be used. Raises ------ ValueError If default_value is invalid for the corresponding dimension. """ super(MissingDimensionConflict.RemoveDimensionResolution, self).__init__( conflict ) if default_value is Dimension.NO_DEFAULT_VALUE: default_value = conflict.dimension.default_value else: default_value = self.conflict.dimension.cast(default_value) self.validate(default_value) self.default_value = default_value def _validate(self, default_value): """Validate default value is NO_DEFAULT_VALUE or is in dimension's interval""" if (default_value is not Dimension.NO_DEFAULT_VALUE) and ( default_value not in self.conflict.dimension ): raise ValueError( "Default value `{}` is outside of dimension's prior interval `{}`".format( default_value, self.conflict.prior ) )
[docs] def get_adapters(self): """Return DimensionDeletion adapter""" param = _create_param(self.conflict.dimension, self.default_value) return [adapters.DimensionDeletion(param)]
@property def prefix(self): """Build the new prior string, including the default value""" return "{0}{1}".format( standard_param_name(self.conflict.dimension.name), self.MARKER ) def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ string = self.prefix if self.default_value is not Dimension.NO_DEFAULT_VALUE: string += "{}".format(repr(self.default_value)) return string
[docs]class AlgorithmConflict(Conflict): """Representation of an algorithm configuration conflict .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect if algorithm definition in `new_config` differs from `old_config` :param branching_config: """ if old_config["algorithms"] != new_config["algorithms"]: yield cls(old_config, new_config)
[docs] def try_resolve(self): """Try to create a resolution AlgorithmResolution""" if self.is_resolved: return None return self.AlgorithmResolution(self)
@property def diff(self): """Produce human-readable differences""" return colored_diff( pprint.pformat(self.old_config["algorithms"]), pprint.pformat(self.new_config["algorithms"]), ) def __repr__(self): """Reprensentation of the conflict for user interface""" # TODO: select different subset rather than printing the old dict return "{0}\n !=\n{1}".format( pprint.pformat(self.old_config["algorithms"]), pprint.pformat(self.new_config["algorithms"]), )
[docs] class AlgorithmResolution(Resolution): """Representation of an algorithn configuration resolution .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ ARGUMENT = "--algorithm-change"
[docs] def get_adapters(self): """Return AlgorithmChange adapter""" return [adapters.AlgorithmChange()]
def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0}".format(self.ARGUMENT)
[docs]class CodeConflict(Conflict): """Representation of code change conflict .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect if commit hash in `new_config` differs from `old_config` :param branching_config: """ old_hash_commit = old_config["metadata"].get("VCS", None) new_hash_commit = new_config["metadata"].get("VCS") ignore_code_changes = branching_config is not None and branching_config.get( "ignore_code_changes", False ) if ignore_code_changes: log.debug("Ignoring code changes") if ( not ignore_code_changes and new_hash_commit and old_hash_commit != new_hash_commit ): yield cls(old_config, new_config)
[docs] def get_marked_arguments( self, conflicts, code_change_type=None, **branching_kwargs ): """Find and return marked arguments for code change conflict .. seealso:: :meth:`orion.core.evc.conflicts.Conflict.get_marked_arguments` """ change_type = self.new_config.get(self.CodeResolution.namespace()) if change_type: return dict(change_type=change_type) if code_change_type is None: code_change_type = orion.core.config.evc.code_change_type return dict(change_type=code_change_type)
[docs] def try_resolve(self, change_type=None): """Try to create a resolution CodeResolution Parameters ---------- change_type: None or string One of the types defined in ``orion.core.evc.adapters.CodeChange.types``. Raises ------ ValueError If change_type is not in ``orion.core.evc.adapters.CodeChange.types``. """ if self.is_resolved: return None return self.CodeResolution(self, change_type)
@property def diff(self): """Produce human-readable differences""" return colored_diff( self.old_config["metadata"].get("VCS", None), self.new_config["metadata"].get("VCS"), ) def __repr__(self): """Reprensentation of the conflict for user interface""" return "Old hash commit '{0}' != new hash commit '{1}'".format( pprint.pformat(self.old_config["metadata"].get("VCS", None)).replace( "\n", "" ), pprint.pformat(self.new_config["metadata"].get("VCS")).replace("\n", ""), )
[docs] class CodeResolution(Resolution): """Representation of an code change resolution Attributes ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. change_type: string One of the types defined in ``orion.core.evc.adapters.CodeChange.types``. .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ ARGUMENT = "--code-change-type" def __init__(self, conflict, change_type): """Initialize resolution and mark conflict as resolved Parameters ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. change_type: string One of the types defined in ``orion.core.evc.adapters.CodeChange.types``. Raises ------ ValueError If change_type is not in ``orion.core.evc.adapters.CodeChange.types``. """ super(CodeConflict.CodeResolution, self).__init__(conflict) self.validate(change_type) self.type = change_type def _validate(self, change_type): """Validate change_type is in ``orion.core.evc.adapters.CodeChange.types``""" adapters.CodeChange.validate(change_type)
[docs] def get_adapters(self): """Return CodeChange adapter""" return [adapters.CodeChange(self.type)]
def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0} {1}".format(self.ARGUMENT, self.type)
[docs]class CommandLineConflict(Conflict): """Representation of commandline change conflict .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """ # pylint: disable=unused-argument
[docs] @classmethod def get_nameless_args( cls, config, user_script_config=None, non_monitored_arguments=None, **kwargs ): """Get user's commandline arguments which are not dimension definitions""" # Used python API if "parser" not in config["metadata"]: return "" if user_script_config is None: user_script_config = orion.core.config.worker.user_script_config if non_monitored_arguments is None: non_monitored_arguments = orion.core.config.evc.non_monitored_arguments log.debug("User script config: %s", user_script_config) log.debug("Non monitored arguments: %s", non_monitored_arguments) parser = OrionCmdlineParser(user_script_config) parser.set_state_dict(config["metadata"]["parser"]) priors = parser.priors_to_normal() nameless_keys = set(parser.parser.arguments.keys()) - set(priors.keys()) nameless_args = { key: arg for key, arg in parser.parser.arguments.items() if key in nameless_keys and key not in non_monitored_arguments } log.debug("Arguments that may cause a conflict: %s", nameless_args) return " ".join( " ".join([key, str(arg)]) for key, arg in sorted(nameless_args.items(), key=lambda a: a[0]) )
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect if command line call in `new_config` differs from `old_config` :param branching_config: """ if branching_config is None: branching_config = {} old_nameless_args = cls.get_nameless_args(old_config, **branching_config) new_nameless_args = cls.get_nameless_args(new_config, **branching_config) log.debug("Previous arguments: %s", old_nameless_args) log.debug("New arguments: %s", new_nameless_args) if old_nameless_args != new_nameless_args: yield cls(old_config, new_config)
[docs] def get_marked_arguments(self, conflicts, cli_change_type=None, **branching_kwargs): """Find and return marked arguments for cli change conflict .. seealso:: :meth:`orion.core.evc.conflicts.Conflict.get_marked_arguments` """ change_type = self.new_config.get(self.CommandLineResolution.namespace()) if change_type: return dict(change_type=change_type) if cli_change_type is None: cli_change_type = orion.core.config.evc.cli_change_type return dict(change_type=cli_change_type)
[docs] def try_resolve(self, change_type=None): """Try to create a resolution CommandLineResolution Parameters ---------- change_type: None or string One of the types defined in ``orion.core.evc.adapters.CommandLineChange.types``. Raises ------ ValueError If change_type is not in ``orion.core.evc.adapters.CommandLineChange.types``. """ if self.is_resolved: return None return self.CommandLineResolution(self, change_type)
@property def diff(self): """Produce human-readable differences""" return colored_diff( self.get_nameless_args(self.old_config), self.get_nameless_args(self.new_config), ) def __repr__(self): """Reprensentation of the conflict for user interface""" return "Old arguments '{0}' != new arguments '{1}'".format( self.get_nameless_args(self.old_config), self.get_nameless_args(self.new_config), )
[docs] class CommandLineResolution(Resolution): """Representation of an commandline change resolution Attributes ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. change_type: string One of the types defined in ``orion.core.evc.adapters.CommandLineChange.types``. .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ ARGUMENT = "--cli-change-type" def __init__(self, conflict, change_type): """Initialize resolution and mark conflict as resolved Parameters ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. change_type: string One of the types defined in ``orion.core.evc.adapters.CommandLineChange.types``. Raises ------ ValueError If change_type is not in ``orion.core.evc.adapters.CommandLineChange.types``. """ super(CommandLineConflict.CommandLineResolution, self).__init__(conflict) self.validate(change_type) self.type = change_type def _validate(self, change_type): """Validate change_type is in ``orion.core.evc.adapters.CommandLineChange.types``""" adapters.CommandLineChange.validate(change_type)
[docs] def get_adapters(self): """Return CommandLineChange adapter""" return [adapters.CommandLineChange(self.type)]
def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0} {1}".format(self.ARGUMENT, self.type)
[docs]class ScriptConfigConflict(Conflict): """Representation of script configuration change conflict .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """ # pylint:disable=unused-argument
[docs] @classmethod def get_nameless_config(cls, config, user_script_config=None, **branching_kwargs): """Get configuration dict of user's script without dimension definitions""" # Used python API if "parser" not in config["metadata"]: return "" if user_script_config is None: user_script_config = orion.core.config.worker.user_script_config parser = OrionCmdlineParser(user_script_config) parser.set_state_dict(config["metadata"]["parser"]) nameless_config = dict( (key, value) for (key, value) in parser.config_file_data.items() if not (isinstance(value, str) and value.startswith("orion~")) ) return nameless_config
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect if user's script's config file in `new_config` differs from `old_config` :param branching_config: """ if branching_config is None: branching_config = {} old_script_config = cls.get_nameless_config(old_config, **branching_config) new_script_config = cls.get_nameless_config(new_config, **branching_config) if old_script_config != new_script_config: yield cls(old_config, new_config)
[docs] def get_marked_arguments( self, conflicts, config_change_type=None, **branching_kwargs ): """Find and return marked arguments for user's script's config change conflict .. seealso:: :meth:`orion.core.evc.conflicts.Conflict.get_marked_arguments` """ change_type = self.new_config.get(self.ScriptConfigResolution.namespace()) if change_type: return dict(change_type=change_type) if config_change_type is None: config_change_type = orion.core.config.evc.config_change_type return dict(change_type=config_change_type)
[docs] def try_resolve(self, change_type=None): """Try to create a resolution ScriptConfigResolution Parameters ---------- change_type: None or string One of the types defined in ``orion.core.evc.adapters.ScriptConfigChange.types``. Raises ------ ValueError If change_type is not in ``orion.core.evc.adapters.ScriptConfigChange.types``. """ if self.is_resolved: return None return self.ScriptConfigResolution(self, change_type)
@property def diff(self): """Produce human-readable differences""" return colored_diff( pprint.pformat(self.get_nameless_config(self.old_config)), pprint.pformat(self.get_nameless_config(self.new_config)), ) def __repr__(self): """Reprensentation of the conflict for user interface""" return "Script's configuration file changed"
[docs] class ScriptConfigResolution(Resolution): """Representation of a script configuration change resolution Attributes ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. change_type: string One of the types defined in ``orion.core.evc.adapters.ScriptConfighange.types``. .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ ARGUMENT = "--config-change-type" def __init__(self, conflict, change_type): """Initialize resolution and mark conflict as resolved Parameters ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. change_type: string One of the types defined in ``orion.core.evc.adapters.ScriptConfigChange.types``. Raises ------ ValueError If change_type is not in ``orion.core.evc.adapters.ScriptConfigChange.types``. """ super(ScriptConfigConflict.ScriptConfigResolution, self).__init__(conflict) self.validate(change_type) self.type = change_type def _validate(self, change_type): """Validate change_type is in ``orion.core.evc.adapters.ScriptConfigChange.types``""" adapters.ScriptConfigChange.validate(change_type)
[docs] def get_adapters(self): """Return ScriptdConfigChange adapter""" return [adapters.ScriptConfigChange(self.type)]
def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0} {1}".format(self.ARGUMENT, self.type)
[docs]class ExperimentNameConflict(Conflict): """Representation of experiment name conflict .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Return experiment name conflict no matter what Branching event cannot be triggered experiment name is not the same. :param branching_config: """ yield cls(old_config, new_config)
[docs] def get_marked_arguments(self, conflicts, **branching_kwargs): """Find and return marked arguments for experiment name conflict .. seealso:: :meth:`orion.core.evc.conflicts.Conflict.get_marked_arguments` """ new_name = self.new_config.get(self.ExperimentNameResolution.namespace()) if new_name: return dict(new_name=new_name) return {}
@property def version(self): """Retrieve version of configuration""" return self.old_config["version"]
[docs] def try_resolve(self, new_name=None): """Try to create a resolution ExperimentNameResolution Parameters ---------- new_name: None or string A new name for the branching experiment. A ValueError is raised if name is already in database. Raises ------ ValueError If name already exists in database for current version. """ if self.is_resolved: return None return self.ExperimentNameResolution(self, new_name)
@property def diff(self): """Produce *no* diff""" return None def __repr__(self): """Reprensentation of the conflict for user interface""" return "Experiment name '{0}' already exist with version '{1}'".format( self.old_config["name"], self.version )
[docs] class ExperimentNameResolution(Resolution): """Representation of an experiment name resolution .. seealso :: :class:`orion.core.evc.conflicts.Resolution` Attributes ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. new_name: string A new name for the branching experiment. """ ARGUMENT = "--branch-to" def __init__(self, conflict, new_name): """Initialize resolution and mark conflict as resolved Parameters ---------- conflict: `orion.core.evc.conflicts.Conflict` The conflict which is resolved by this resolution. new_name: string A new name for the branching experiment. A ValueError is raised if name is already in database with a direct child. Raises ------ ValueError If name already exists in database with a direct child for current version. """ super(ExperimentNameConflict.ExperimentNameResolution, self).__init__( conflict ) self.new_name = new_name self.old_name = self.conflict.old_config["name"] self.old_version = self.conflict.old_config.get("version", 1) self.new_version = self.old_version self.validate() self.conflict.new_config["name"] = self.new_name self.conflict.new_config["version"] = self.new_version def _validate(self): """Validate new_name is not in database with a direct child for current version""" # TODO: WARNING!!! _name_is_unique could lead to race conditions, # The resolution may become invalid before the branching experiment is # registered. What should we do in such case? if self.new_name is not None and self.new_name != self.old_name: # If we are trying to actually branch from experiment if not self._name_is_unique(): raise ValueError( "Cannot branch from {} with name {} since it already exists.".format( self.old_name, self.new_name ) ) # Since the name changes, we reset the version count. self.new_version = 1 # If the new name is the same as the old name, we are trying to increment # the version of the experiment. elif self._check_for_greater_versions(): raise ValueError( f"Experiment name '{self.new_name}' already exist for version " f"'{self.conflict.version}' and has children. Version cannot be " "auto-incremented and a new name is required for branching." ) else: self.new_name = self.old_name self.new_version = self.conflict.old_config.get("version", 1) + 1 def _name_is_unique(self): """Return True if given name is not in database for current version""" query = {"name": self.new_name, "version": self.conflict.version} named_experiments = len(get_storage().fetch_experiments(query)) return named_experiments == 0 def _check_for_greater_versions(self): """Check if experiment has children""" # If we made it this far, new_name is actually the name of the parent. parent = self.conflict.old_config query = {"name": parent["name"], "refers.parent_id": parent["_id"]} children = len(get_storage().fetch_experiments(query)) return bool(children)
[docs] def revert(self): """Reset conflict set experiment name back to old one in new configuration""" self.conflict.new_config["name"] = self.old_name self.conflict.new_config["version"] = self.old_version return super(ExperimentNameConflict.ExperimentNameResolution, self).revert()
[docs] def get_adapters(self): """Return no adapters, trials need to adaptation to new experiment name""" return []
def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0} {1}".format(self.ARGUMENT, self.new_name) @property def is_marked(self): """Return True every time since the `--branch-from` argument is not used when incrementing version of an experiment. """ return True
[docs]class OrionVersionConflict(Conflict): """Representation of conflict due to different Orion versions .. seealso :: :class:`orion.core.evc.conflicts.Conflict` """
[docs] @classmethod def detect(cls, old_config, new_config, branching_config=None): """Detect if orion versions differs""" if ( old_config["metadata"]["orion_version"] != new_config["metadata"]["orion_version"] ): yield cls(old_config, new_config)
[docs] def try_resolve(self): """Try to create a resolution OrionVersionResolution""" if self.is_resolved: return None return self.OrionVersionResolution(self)
@property def diff(self): """Produce human-readable differences""" return colored_diff( self.old_config["metadata"]["orion_version"], self.new_config["metadata"]["orion_version"], ) def __repr__(self): """Reprensentation of the conflict for user interface""" return "{0} != {1}".format( self.old_config["metadata"]["orion_version"], self.new_config["metadata"]["orion_version"], )
[docs] class OrionVersionResolution(Resolution): """Representation of an orion version resolution .. seealso :: :class:`orion.core.evc.conflicts.Resolution` """ ARGUMENT = "--orion-version-change"
[docs] def get_adapters(self): """Return OrionVersionChange adapter""" return [adapters.OrionVersionChange()]
def __repr__(self): """Representation of the resolution as it should be provided in command line of configuration file by the user """ return "{0}".format(self.ARGUMENT)