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Diffstat (limited to 'tools/build/v2/build/engine.py')
| -rw-r--r-- | tools/build/v2/build/engine.py | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/tools/build/v2/build/engine.py b/tools/build/v2/build/engine.py deleted file mode 100644 index 9e624dae82..0000000000 --- a/tools/build/v2/build/engine.py +++ /dev/null @@ -1,177 +0,0 @@ -# Copyright Pedro Ferreira 2005. -# Copyright Vladimir Prus 2007. -# Distributed under the Boost -# Software License, Version 1.0. (See accompanying -# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) - -bjam_interface = __import__('bjam') - -import operator -import re - -import b2.build.property_set as property_set -import b2.util - -class BjamAction: - """Class representing bjam action defined from Python.""" - - def __init__(self, action_name, function): - self.action_name = action_name - self.function = function - - def __call__(self, targets, sources, property_set): - - # Bjam actions defined from Python have only the command - # to execute, and no associated jam procedural code. So - # passing 'property_set' to it is not necessary. - bjam_interface.call("set-update-action", self.action_name, - targets, sources, []) - if self.function: - self.function(targets, sources, property_set) - -class BjamNativeAction: - """Class representing bjam action defined by Jam code. - - We still allow to associate a Python callable that will - be called when this action is installed on any target. - """ - - def __init__(self, action_name, function): - self.action_name = action_name - self.function = function - - def __call__(self, targets, sources, property_set): - if self.function: - self.function(targets, sources, property_set) - - p = [] - if property_set: - p = property_set.raw() - - b2.util.set_jam_action(self.action_name, targets, sources, p) - -action_modifiers = {"updated": 0x01, - "together": 0x02, - "ignore": 0x04, - "quietly": 0x08, - "piecemeal": 0x10, - "existing": 0x20} - -class Engine: - """ The abstract interface to a build engine. - - For now, the naming of targets, and special handling of some - target variables like SEARCH and LOCATE make this class coupled - to bjam engine. - """ - def __init__ (self): - self.actions = {} - - def add_dependency (self, targets, sources): - """Adds a dependency from 'targets' to 'sources' - - Both 'targets' and 'sources' can be either list - of target names, or a single target name. - """ - if isinstance (targets, str): - targets = [targets] - if isinstance (sources, str): - sources = [sources] - - for target in targets: - for source in sources: - self.do_add_dependency (target, source) - - def set_target_variable (self, targets, variable, value, append=0): - """ Sets a target variable. - - The 'variable' will be available to bjam when it decides - where to generate targets, and will also be available to - updating rule for that 'taret'. - """ - if isinstance (targets, str): - targets = [targets] - - for target in targets: - self.do_set_target_variable (target, variable, value, append) - - def set_update_action (self, action_name, targets, sources, properties=property_set.empty()): - """ Binds a target to the corresponding update action. - If target needs to be updated, the action registered - with action_name will be used. - The 'action_name' must be previously registered by - either 'register_action' or 'register_bjam_action' - method. - """ - assert(isinstance(properties, property_set.PropertySet)) - if isinstance (targets, str): - targets = [targets] - self.do_set_update_action (action_name, targets, sources, properties) - - def register_action (self, action_name, command, bound_list = [], flags = [], - function = None): - """Creates a new build engine action. - - Creates on bjam side an action named 'action_name', with - 'command' as the command to be executed, 'bound_variables' - naming the list of variables bound when the command is executed - and specified flag. - If 'function' is not None, it should be a callable taking three - parameters: - - targets - - sources - - instance of the property_set class - This function will be called by set_update_action, and can - set additional target variables. - """ - if self.actions.has_key(action_name): - raise "Bjam action %s is already defined" % action_name - - assert(isinstance(flags, list)) - - bjam_flags = reduce(operator.or_, - (action_modifiers[flag] for flag in flags), 0) - - # We allow command to be empty so that we can define 'action' as pure - # python function that would do some conditional logic and then relay - # to other actions. - assert command or function - if command: - bjam_interface.define_action(action_name, command, bound_list, bjam_flags) - - self.actions[action_name] = BjamAction(action_name, function) - - def register_bjam_action (self, action_name, function=None): - """Informs self that 'action_name' is declared in bjam. - - From this point, 'action_name' is a valid argument to the - set_update_action method. The action_name should be callable - in the global module of bjam. - """ - - # We allow duplicate calls to this rule for the same - # action name. This way, jamfile rules that take action names - # can just register them without specially checking if - # action is already registered. - if not self.actions.has_key(action_name): - self.actions[action_name] = BjamNativeAction(action_name, function) - - # Overridables - - - def do_set_update_action (self, action_name, targets, sources, property_set): - action = self.actions.get(action_name) - if not action: - raise Exception("No action %s was registered" % action_name) - action(targets, sources, property_set) - - def do_set_target_variable (self, target, variable, value, append): - if append: - bjam_interface.call("set-target-variable", target, variable, value, "true") - else: - bjam_interface.call("set-target-variable", target, variable, value) - - def do_add_dependency (self, target, source): - bjam_interface.call("DEPENDS", target, source) - - |