diff options
Diffstat (limited to 'waflib/extras/relocation.py')
-rw-r--r-- | waflib/extras/relocation.py | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/waflib/extras/relocation.py b/waflib/extras/relocation.py new file mode 100644 index 00000000..7e821f41 --- /dev/null +++ b/waflib/extras/relocation.py @@ -0,0 +1,85 @@ +#! /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] + + |