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#! /usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2006-2010 (ita)
"""
Add a pre-build hook to remove all build files
which do not have a corresponding target
This can be used for example to remove the targets
that have changed name without performing
a full 'waf clean'
Of course, it will only work if there are no dynamically generated
nodes/tasks, in which case the method will have to be modified
to exclude some folders for example.
"""
import Logs, Build, os, samba_utils, Options, Utils
from Runner import Parallel
old_refill_task_list = Parallel.refill_task_list
def replace_refill_task_list(self):
'''replacement for refill_task_list() that deletes stale files'''
iit = old_refill_task_list(self)
bld = self.bld
if not getattr(bld, 'new_rules', False):
# we only need to check for stale files if the build rules changed
return iit
if Options.options.compile_targets:
# not safe when --target is used
return iit
# execute only once
if getattr(self, 'cleanup_done', False):
return iit
self.cleanup_done = True
def group_name(g):
tm = self.bld.task_manager
return [x for x in tm.groups_names if id(tm.groups_names[x]) == id(g)][0]
bin_base = bld.bldnode.abspath()
bin_base_len = len(bin_base)
# paranoia
if bin_base[-4:] != '/bin':
raise Utils.WafError("Invalid bin base: %s" % bin_base)
# obtain the expected list of files
expected = []
for i in range(len(bld.task_manager.groups)):
g = bld.task_manager.groups[i]
tasks = g.tasks_gen
for x in tasks:
try:
if getattr(x, 'target'):
tlist = samba_utils.TO_LIST(getattr(x, 'target'))
for t in tlist:
p = os.path.join(x.path.abspath(bld.env), t)
p = os.path.normpath(p)
expected.append(p)
for n in x.allnodes:
p = n.abspath(bld.env)
if p[0:bin_base_len] == bin_base:
expected.append(p)
except:
pass
for root, dirs, files in os.walk(bin_base):
for f in files:
p = root + '/' + f
if os.path.islink(p):
link = os.readlink(p)
if link[0:bin_base_len] == bin_base:
p = link
if f in ['config.h']:
continue
if f[-2:] not in [ '.c', '.h' ]:
continue
if f[-7:] == '.inst.h':
continue
if p.find("/.conf") != -1:
continue
if not p in expected:
Logs.warn("Removing stale file: %s" % p)
os.unlink(p)
return iit
def AUTOCLEANUP_STALE_FILES(bld):
"""automatically clean up any files in bin that shouldn't be there"""
old_refill_task_list = Parallel.refill_task_list
Parallel.refill_task_list = replace_refill_task_list
Parallel.bld = bld
Build.BuildContext.AUTOCLEANUP_STALE_FILES = AUTOCLEANUP_STALE_FILES
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