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# This file contains waf optimisations for Samba
# most of these optimisations are possible because of the restricted build environment
# that Samba has. For example, Samba doesn't attempt to cope with Win32 paths during the
# build, and Samba doesn't need build varients
# overall this makes some build tasks quite a bit faster
from TaskGen import feature, before, after
import preproc
import os
kak = {}
@feature('cc', 'cxx')
@after('apply_type_vars', 'apply_lib_vars', 'apply_core')
def apply_incpaths(self):
lst = []
# TODO move the uselib processing out of here
for lib in self.to_list(self.uselib):
for path in self.env['CPPPATH_' + lib]:
if not path in lst:
lst.append(path)
if preproc.go_absolute:
for path in preproc.standard_includes:
if not path in lst:
lst.append(path)
for path in self.to_list(self.includes):
if not path in lst:
if preproc.go_absolute or path[0] != '/': #os.path.isabs(path):
lst.append(path)
else:
self.env.prepend_value('CPPPATH', path)
for path in lst:
node = None
if path[0] == '/': # os.path.isabs(path):
if preproc.go_absolute:
node = self.bld.root.find_dir(path)
elif path[0] == '#':
node = self.bld.srcnode
if len(path) > 1:
try:
node = kak[path]
except KeyError:
kak[path] = node = node.find_dir(path[1:])
else:
try:
node = kak[(self.path.id, path)]
except KeyError:
kak[(self.path.id, path)] = node = self.path.find_dir(path)
if node:
self.env.append_value('INC_PATHS', node)
cac = {}
@feature('cc')
@after('apply_incpaths')
def apply_obj_vars_cc(self):
"""after apply_incpaths for INC_PATHS"""
env = self.env
app = env.append_unique
cpppath_st = env['CPPPATH_ST']
lss = env['_CCINCFLAGS']
global cac
# local flags come first
# set the user-defined includes paths
for i in env['INC_PATHS']:
try:
lss.extend(cac[i.id])
except KeyError:
cac[i.id] = [cpppath_st % i.bldpath(env), cpppath_st % i.srcpath(env)]
lss.extend(cac[i.id])
env['_CCINCFLAGS'] = lss
# set the library include paths
for i in env['CPPPATH']:
app('_CCINCFLAGS', cpppath_st % i)
import Node, Environment
def vari(self):
return "default"
Environment.Environment.variant = vari
def variant(self, env):
if not env: return 0
elif self.id & 3 == Node.FILE: return 0
else: return "default"
Node.Node.variant = variant
import TaskGen, Task
def create_task(self, name, src=None, tgt=None):
task = Task.TaskBase.classes[name](self.env, generator=self)
if src:
task.set_inputs(src)
if tgt:
task.set_outputs(tgt)
return task
TaskGen.task_gen.create_task = create_task
def hash_constraints(self):
a = self.attr
sum = hash((str(a('before', '')),
str(a('after', '')),
str(a('ext_in', '')),
str(a('ext_out', '')),
self.__class__.maxjobs))
return sum
Task.TaskBase.hash_constraints = hash_constraints
# import cc
# from TaskGen import extension
# import Utils
# @extension(cc.EXT_CC)
# def c_hook(self, node):
# task = self.create_task('cc', node, node.change_ext('.o'))
# try:
# self.compiled_tasks.append(task)
# except AttributeError:
# raise Utils.WafError('Have you forgotten to set the feature "cc" on %s?' % str(self))
# bld = self.bld
# try:
# dc = bld.dc
# except AttributeError:
# dc = bld.dc = {}
# if task.outputs[0].id in dc:
# raise Utils.WafError('Samba, you are doing it wrong %r %s %s' % (task.outputs, task.generator, dc[task.outputs[0].id].generator))
# else:
# dc[task.outputs[0].id] = task
# return task
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