def _create_binary(self, binary_tgt, results_dir):
"""Create a .pex file for the specified binary target."""
# Note that we rebuild a chroot from scratch, instead of using the REQUIREMENTS_PEX
# and PYTHON_SOURCES products, because those products are already-built pexes, and there's
# no easy way to merge them into a single pex file (for example, they each have a __main__.py,
# metadata, and so on, which the merging code would have to handle specially).
interpreter = self.context.products.get_data(PythonInterpreter)
with temporary_dir() as tmpdir:
# Create the pex_info for the binary.
run_info_dict = self.context.run_tracker.run_info.get_as_dict()
build_properties = PexInfo.make_build_properties()
build_properties.update(run_info_dict)
pex_info = binary_tgt.pexinfo.copy()
pex_info.build_properties = build_properties
builder = PEXBuilder(path=tmpdir,
interpreter=interpreter,
pex_info=pex_info,
copy=True)
if binary_tgt.shebang:
self.context.log.info(
'Found Python binary target {} with customized shebang, using it: {}'
.format(binary_tgt.name, binary_tgt.shebang))
builder.set_shebang(binary_tgt.shebang)
else:
self.context.log.debug(
'No customized shebang found for {}'.format(
binary_tgt.name))
# Find which targets provide sources and which specify requirements.
source_tgts = []
req_tgts = []
for tgt in binary_tgt.closure(exclude_scopes=Scopes.COMPILE):
if has_python_sources(tgt) or has_resources(tgt):
source_tgts.append(tgt)
elif has_python_requirements(tgt):
req_tgts.append(tgt)
# Add target's interpreter compatibility constraints to pex info.
if is_python_target(tgt):
for constraint in tgt.compatibility:
builder.add_interpreter_constraint(constraint)
# Dump everything into the builder's chroot.
for tgt in source_tgts:
dump_sources(builder, tgt, self.context.log)
# We need to ensure that we are resolving for only the current platform if we are
# including local python dist targets that have native extensions.
build_for_current_platform_only_check(self.context.targets())
dump_requirement_libs(builder,
interpreter,
req_tgts,
self.context.log,
platforms=binary_tgt.platforms)
# Build the .pex file.
pex_path = os.path.join(results_dir,
'{}.pex'.format(binary_tgt.name))
builder.build(pex_path)
return pex_path
def execute(self):
if not self.context.targets(
lambda t: is_python_target(t) or has_python_requirements(t)):
return
interpreter = self.context.products.get_data(PythonInterpreter)
pex = self.resolve_requirements(
interpreter, self.context.targets(has_python_requirements))
self.context.products.register_data(self.REQUIREMENTS_PEX, pex)
def create_pex(self, pex_info=None):
"""Returns a wrapped pex that "merges" the other pexes via PEX_PATH."""
relevant_targets = self.context.targets(lambda tgt: isinstance(
tgt, (PythonDistribution, PythonRequirementLibrary, PythonTarget,
Files)))
with self.invalidated(relevant_targets) as invalidation_check:
# If there are no relevant targets, we still go through the motions of resolving
# an empty set of requirements, to prevent downstream tasks from having to check
# for this special case.
if invalidation_check.all_vts:
target_set_id = VersionedTargetSet.from_versioned_targets(
invalidation_check.all_vts).cache_key.hash
else:
target_set_id = 'no_targets'
interpreter = self.context.products.get_data(PythonInterpreter)
path = os.path.realpath(
os.path.join(self.workdir, str(interpreter.identity),
target_set_id))
# Note that we check for the existence of the directory, instead of for invalid_vts,
# to cover the empty case.
if not os.path.isdir(path):
pexes = [
self.context.products.get_data(
ResolveRequirements.REQUIREMENTS_PEX),
self.context.products.get_data(
GatherSources.PYTHON_SOURCES)
]
if self.extra_requirements():
extra_requirements_pex = self.resolve_requirement_strings(
interpreter, self.extra_requirements())
# Add the extra requirements first, so they take precedence over any colliding version
# in the target set's dependency closure.
pexes = [extra_requirements_pex] + pexes
constraints = {
constraint
for rt in relevant_targets if is_python_target(rt)
for constraint in PythonSetup.global_instance().
compatibility_or_constraints(rt)
}
with self.merged_pex(path, pex_info, interpreter, pexes,
constraints) as builder:
for extra_file in self.extra_files():
extra_file.add_to(builder)
builder.freeze()
return PEX(path, interpreter)
def _create_binary(self, binary_tgt, results_dir):
"""Create a .pex file for the specified binary target."""
# Note that we rebuild a chroot from scratch, instead of using the REQUIREMENTS_PEX
# and PYTHON_SOURCES products, because those products are already-built pexes, and there's
# no easy way to merge them into a single pex file (for example, they each have a __main__.py,
# metadata, and so on, which the merging code would have to handle specially).
interpreter = self.context.products.get_data(PythonInterpreter)
with temporary_dir() as tmpdir:
# Create the pex_info for the binary.
run_info_dict = self.context.run_tracker.run_info.get_as_dict()
build_properties = PexInfo.make_build_properties()
build_properties.update(run_info_dict)
pex_info = binary_tgt.pexinfo.copy()
pex_info.build_properties = build_properties
builder = PEXBuilder(path=tmpdir, interpreter=interpreter, pex_info=pex_info, copy=True)
if binary_tgt.shebang:
self.context.log.info('Found Python binary target {} with customized shebang, using it: {}'
.format(binary_tgt.name, binary_tgt.shebang))
builder.set_shebang(binary_tgt.shebang)
else:
self.context.log.debug('No customized shebang found for {}'.format(binary_tgt.name))
# Find which targets provide sources and which specify requirements.
source_tgts = []
req_tgts = []
for tgt in binary_tgt.closure(exclude_scopes=Scopes.COMPILE):
if has_python_sources(tgt) or has_resources(tgt):
source_tgts.append(tgt)
elif has_python_requirements(tgt):
req_tgts.append(tgt)
# Add target's interpreter compatibility constraints to pex info.
if is_python_target(tgt):
for constraint in tgt.compatibility:
builder.add_interpreter_constraint(constraint)
# Dump everything into the builder's chroot.
for tgt in source_tgts:
dump_sources(builder, tgt, self.context.log)
# We need to ensure that we are resolving for only the current platform if we are
# including local python dist targets that have native extensions.
self._python_native_code_settings.check_build_for_current_platform_only(self.context.targets())
dump_requirement_libs(builder, interpreter, req_tgts, self.context.log,
platforms=binary_tgt.platforms)
# Build the .pex file.
pex_path = os.path.join(results_dir, '{}.pex'.format(binary_tgt.name))
builder.build(pex_path)
return pex_path
def create_pex(self, pex_info=None):
"""Returns a wrapped pex that "merges" the other pexes via PEX_PATH."""
relevant_targets = self.context.targets(
lambda tgt: isinstance(tgt, (
PythonDistribution, PythonRequirementLibrary, PythonTarget, Files)))
with self.invalidated(relevant_targets) as invalidation_check:
# If there are no relevant targets, we still go through the motions of resolving
# an empty set of requirements, to prevent downstream tasks from having to check
# for this special case.
if invalidation_check.all_vts:
target_set_id = VersionedTargetSet.from_versioned_targets(
invalidation_check.all_vts).cache_key.hash
else:
target_set_id = 'no_targets'
interpreter = self.context.products.get_data(PythonInterpreter)
path = os.path.realpath(os.path.join(self.workdir, str(interpreter.identity), target_set_id))
# Note that we check for the existence of the directory, instead of for invalid_vts,
# to cover the empty case.
if not os.path.isdir(path):
pexes = [
self.context.products.get_data(ResolveRequirements.REQUIREMENTS_PEX),
self.context.products.get_data(GatherSources.PYTHON_SOURCES)
]
if self.extra_requirements():
extra_requirements_pex = self.resolve_requirement_strings(
interpreter, self.extra_requirements())
# Add the extra requirements first, so they take precedence over any colliding version
# in the target set's dependency closure.
pexes = [extra_requirements_pex] + pexes
constraints = {constraint for rt in relevant_targets if is_python_target(rt)
for constraint in rt.compatibility}
with self.merged_pex(path, pex_info, interpreter, pexes, constraints) as builder:
for extra_file in self.extra_files():
extra_file.add_to(builder)
builder.freeze()
return WrappedPEX(PEX(path, interpreter))
def execute(self):
if not self.context.targets(lambda t: is_python_target(t) or has_python_requirements(t)):
return
interpreter = self.context.products.get_data(PythonInterpreter)
pex = self.resolve_requirements(interpreter, self.context.targets(has_python_requirements))
self.context.products.register_data(self.REQUIREMENTS_PEX, pex)