mirror of
https://github.com/godotengine/godot
synced 2024-09-06 05:23:54 +00:00
83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
import os
|
|
import sys
|
|
import json
|
|
import uuid
|
|
import functools
|
|
import subprocess
|
|
|
|
# NOTE: The multiprocessing module is not compatible with SCons due to conflict on cPickle
|
|
|
|
if sys.version_info[0] < 3:
|
|
JSON_SERIALIZABLE_TYPES = (bool, int, long, float, basestring)
|
|
else:
|
|
JSON_SERIALIZABLE_TYPES = (bool, int, float, str)
|
|
|
|
|
|
def run_in_subprocess(builder_function):
|
|
|
|
@functools.wraps(builder_function)
|
|
def wrapper(target, source, env):
|
|
|
|
# Convert SCons Node instances to absolute paths
|
|
target = [node.srcnode().abspath for node in target]
|
|
source = [node.srcnode().abspath for node in source]
|
|
|
|
# Short circuit on non-Windows platforms, no need to run in subprocess
|
|
if sys.platform not in ('win32', 'cygwin'):
|
|
return builder_function(target, source, env)
|
|
|
|
# Identify module
|
|
module_name = builder_function.__module__
|
|
function_name = builder_function.__name__
|
|
module_path = sys.modules[module_name].__file__
|
|
if module_path.endswith('.pyc') or module_path.endswith('.pyo'):
|
|
module_path = module_path[:-1]
|
|
|
|
# Subprocess environment
|
|
subprocess_env = os.environ.copy()
|
|
subprocess_env['PYTHONPATH'] = os.pathsep.join([os.getcwd()] + sys.path)
|
|
|
|
# Keep only JSON serializable environment items
|
|
filtered_env = dict(
|
|
(key, value)
|
|
for key, value in env.items()
|
|
if isinstance(value, JSON_SERIALIZABLE_TYPES)
|
|
)
|
|
|
|
# Save parameters
|
|
args = (target, source, filtered_env)
|
|
data = dict(fn=function_name, args=args)
|
|
json_path = os.path.join(os.environ['TMP'], uuid.uuid4().hex + '.json')
|
|
with open(json_path, 'wt') as json_file:
|
|
json.dump(data, json_file, indent=2)
|
|
json_file_size = os.stat(json_path).st_size
|
|
|
|
print('Executing builder function in subprocess: '
|
|
'module_path=%r, parameter_file=%r, parameter_file_size=%r, target=%r, source=%r' % (
|
|
module_path, json_path, json_file_size, target, source))
|
|
try:
|
|
exit_code = subprocess.call([sys.executable, module_path, json_path], env=subprocess_env)
|
|
finally:
|
|
try:
|
|
os.remove(json_path)
|
|
except (OSError, IOError) as e:
|
|
# Do not fail the entire build if it cannot delete a temporary file
|
|
print('WARNING: Could not delete temporary file: path=%r; [%s] %s' %
|
|
(json_path, e.__class__.__name__, e))
|
|
|
|
# Must succeed
|
|
if exit_code:
|
|
raise RuntimeError(
|
|
'Failed to run builder function in subprocess: module_path=%r; data=%r' % (module_path, data))
|
|
|
|
return wrapper
|
|
|
|
|
|
def subprocess_main(namespace):
|
|
|
|
with open(sys.argv[1]) as json_file:
|
|
data = json.load(json_file)
|
|
|
|
fn = namespace[data['fn']]
|
|
fn(*data['args'])
|