def _init_graph(self, use_engine, pants_ignore_patterns, build_ignore_patterns,
exclude_target_regexps, target_specs, graph_helper=None):
"""Determines the BuildGraph, AddressMapper and spec_roots for a given run.
:param bool use_engine: Whether or not to use the v2 engine to construct the BuildGraph.
:param list pants_ignore_patterns: The pants ignore patterns from '--pants-ignore'.
:param list build_ignore_patterns: The build ignore patterns from '--build-ignore',
applied during BUILD file searching.
:param list exclude_target_regexps: Regular expressions for targets to be excluded.
:param list target_specs: The original target specs.
:param LegacyGraphHelper graph_helper: A LegacyGraphHelper to use for graph construction,
if available. This would usually come from the daemon.
:returns: A tuple of (BuildGraph, AddressMapper, spec_roots).
"""
# N.B. Use of the daemon implies use of the v2 engine.
if graph_helper or use_engine:
# The daemon may provide a `graph_helper`. If that's present, use it for graph construction.
graph_helper = graph_helper or EngineInitializer.setup_legacy_graph(
pants_ignore_patterns,
build_ignore_patterns=build_ignore_patterns,
exclude_target_regexps=exclude_target_regexps)
target_roots = TargetRoots.create(options=self._options,
build_root=self._root_dir,
change_calculator=graph_helper.change_calculator)
return graph_helper.create_build_graph(target_roots, self._root_dir)
else:
address_mapper = BuildFileAddressMapper(
self._build_file_parser,
get_project_tree(self._global_options),
build_ignore_patterns,
exclude_target_regexps)
return MutableBuildGraph(address_mapper), address_mapper, target_specs
def open_scheduler(self, specs, symbol_table_cls=None):
path_ignore_patterns = ['.*']
target_roots = TargetRoots.create(options=self._make_setup_args(specs))
graph_helper = EngineInitializer.setup_legacy_graph(path_ignore_patterns,
symbol_table_cls=symbol_table_cls,
native=self._native)
try:
graph = graph_helper.create_build_graph(target_roots)[0]
addresses = tuple(graph.inject_specs_closure(target_roots.as_specs()))
yield graph, addresses, graph_helper.scheduler
finally:
graph_helper.engine.close()
def open_scheduler(self, specs, symbol_table_cls=None):
path_ignore_patterns = ['.*']
target_roots = TargetRoots.create(options=self._make_setup_args(specs))
graph_helper = EngineInitializer.setup_legacy_graph(
path_ignore_patterns,
symbol_table_cls=symbol_table_cls,
native=self._native)
try:
graph = graph_helper.create_build_graph(target_roots)[0]
addresses = tuple(
graph.inject_specs_closure(target_roots.as_specs()))
yield graph, addresses, graph_helper.scheduler
finally:
graph_helper.engine.close()
def _init_graph(self,
use_engine,
pants_ignore_patterns,
build_ignore_patterns,
exclude_target_regexps,
target_specs,
graph_helper=None):
"""Determine the BuildGraph, AddressMapper and spec_roots for a given run.
:param bool use_engine: Whether or not to use the v2 engine to construct the BuildGraph.
:param list pants_ignore_patterns: The pants ignore patterns from '--pants-ignore'.
:param list build_ignore_patterns: The build ignore patterns from '--build-ignore',
applied during BUILD file searching.
:param list exclude_target_regexps: Regular expressions for targets to be excluded.
:param list target_specs: The original target specs.
:param LegacyGraphHelper graph_helper: A LegacyGraphHelper to use for graph construction,
if available. This would usually come from the daemon.
:returns: A tuple of (BuildGraph, AddressMapper, spec_roots).
"""
# N.B. Use of the daemon implies use of the v2 engine.
if graph_helper or use_engine:
# The daemon may provide a `graph_helper`. If that's present, use it for graph construction.
graph_helper = graph_helper or EngineInitializer.setup_legacy_graph(
pants_ignore_patterns,
build_ignore_patterns=build_ignore_patterns,
exclude_target_regexps=exclude_target_regexps)
target_roots = TargetRoots.create(
options=self._options,
build_root=self._root_dir,
change_calculator=graph_helper.change_calculator)
graph, address_mapper = graph_helper.create_build_graph(
target_roots, self._root_dir)
return graph, address_mapper, target_roots.as_specs()
else:
spec_roots = TargetRoots.parse_specs(target_specs, self._root_dir)
address_mapper = BuildFileAddressMapper(
self._build_file_parser,
get_project_tree(self._global_options), build_ignore_patterns,
exclude_target_regexps)
return MutableBuildGraph(
address_mapper), address_mapper, spec_roots
def open_legacy_graph(options=None,
path_ignore_patterns=None,
symbol_table_cls=None):
"""A context manager that yields a usable, legacy LegacyBuildGraph by way of the v2 scheduler.
:param Options options: An Options object to use for this run.
:param list path_ignore_patterns: A list of path ignore patterns for FileSystemProjectTree,
usually taken from the `--pants-ignore` global option.
Defaults to: ['.*']
:param SymbolTable symbol_table_cls: A SymbolTable class to use for build file parsing, or
None to use the default.
:yields: A tuple of (graph, addresses, scheduler).
"""
path_ignore_patterns = path_ignore_patterns or ['.*']
target_roots = TargetRoots.create(options=options)
graph_helper = EngineInitializer.setup_legacy_graph(
path_ignore_patterns, symbol_table_cls=symbol_table_cls)
try:
graph = graph_helper.create_build_graph(target_roots)[0]
addresses = tuple(graph.inject_specs_closure(target_roots.as_specs()))
yield graph, addresses, graph_helper.scheduler
finally:
graph_helper.engine.close()