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Bug 934739 - Part 1: Make moz.build backend generation depend on all Python modules; r=glandium

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--HG--
extra : rebase_source : 267c6f50dd1aa683bb425b3e82dc73f5f3c7a7bb
This commit is contained in:
Gregory Szorc 2013-12-09 15:23:29 +09:00
parent 0975651361
commit da11a3c955
1 changed files with 5 additions and 22 deletions
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27
python/mozbuild/mozbuild/backend/base.py
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@ -11,13 +11,13 @@ from abc import (
import errno
import os
import sys
import time
from contextlib import contextmanager
from mach.mixin.logging import LoggingMixin
from ..pythonutil import iter_modules_in_path
from ..util import FileAvoidWrite
from ..frontend.data import (
ReaderSummary,
@ -135,27 +135,10 @@ class BuildBackend(LoggingMixin):
self._backend_output_list.update(open(self._backend_output_list_file) \
.read().split('\n'))
# Pull in Python files for this package as dependencies so backend
# regeneration occurs if any of the code affecting it changes.
for name, module in sys.modules.items():
if not module or not name.startswith('mozbuild'):
continue
p = module.__file__
# We need to look at the actual source files as opposed to derived
# because there may be nothing loading these modules at build time.
# Assuming each .pyc comes from a .py file in the same directory is
# not a safe assumption. Hence the assert to catch future changes
# in behavior. A better solution likely involves loading all
# mozbuild modules at the top of the build to force .pyc
# generation.
if p.endswith('.pyc'):
p = p[0:-1]
assert os.path.exists(p)
self.backend_input_files.add((os.path.abspath(p)))
# Pull in all loaded Python as dependencies so any Python changes that
# could influence our output result in a rescan.
self.backend_input_files |= set(iter_modules_in_path(environment.topsrcdir))
self.backend_input_files |= set(iter_modules_in_path(environment.topobjdir))
self._environments = {}
self._environments[environment.topobjdir] = environment