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#! /usr/bin/env python
# encoding: utf-8
"""
Waf 1.6
Try to detect if the project directory was relocated, and if it was,
change the node representing the project directory. Just call:
waf configure build
Note that if the project directory name changes, the signatures for the tasks using
files in that directory will change, causing a partial build.
"""
import os
from waflib import Build, ConfigSet, Task, Utils, Errors
from waflib.TaskGen import feature, after_method
EXTRA_LOCK = '.old_srcdir'
old1 = Build.BuildContext.store
def store(self):
old1(self)
db = os.path.join(self.variant_dir, EXTRA_LOCK)
env = ConfigSet.ConfigSet()
env.SRCDIR = self.srcnode.abspath()
env.store(db)
Build.BuildContext.store = store
old2 = Build.BuildContext.init_dirs
def init_dirs(self):
if not (os.path.isabs(self.top_dir) and os.path.isabs(self.out_dir)):
raise Errors.WafError('The project was not configured: run "waf configure" first!')
srcdir = None
db = os.path.join(self.variant_dir, EXTRA_LOCK)
env = ConfigSet.ConfigSet()
try:
env.load(db)
srcdir = env.SRCDIR
except:
pass
if srcdir:
d = self.root.find_node(srcdir)
if d and srcdir != self.top_dir and getattr(d, 'children', ''):
srcnode = self.root.make_node(self.top_dir)
print("relocating the source directory %r -> %r" % (srcdir, self.top_dir))
srcnode.children = {}
for (k, v) in d.children.items():
srcnode.children[k] = v
v.parent = srcnode
d.children = {}
old2(self)
Build.BuildContext.init_dirs = init_dirs
def uid(self):
try:
return self.uid_
except AttributeError:
# this is not a real hot zone, but we want to avoid surprises here
m = Utils.md5()
up = m.update
up(self.__class__.__name__.encode())
for x in self.inputs + self.outputs:
up(x.path_from(x.ctx.srcnode).encode())
self.uid_ = m.digest()
return self.uid_
Task.Task.uid = uid
@feature('c', 'cxx', 'd', 'go', 'asm', 'fc', 'includes')
@after_method('propagate_uselib_vars', 'process_source')
def apply_incpaths(self):
lst = self.to_incnodes(self.to_list(getattr(self, 'includes', [])) + self.env['INCLUDES'])
self.includes_nodes = lst
bld = self.bld
self.env['INCPATHS'] = [x.is_child_of(bld.srcnode) and x.path_from(bld.bldnode) or x.abspath() for x in lst]
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