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-rw-r--r--subprojects/nk_pugl/pugl/waflib/extras/stale.py98
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+#! /usr/bin/env python
+# encoding: UTF-8
+# Thomas Nagy, 2006-2015 (ita)
+
+"""
+Add a pre-build hook to remove build files (declared in the system)
+that 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.
+
+Make sure to set bld.post_mode = waflib.Build.POST_AT_ONCE
+"""
+
+from waflib import Logs, Build
+from waflib.Runner import Parallel
+
+DYNAMIC_EXT = [] # add your non-cleanable files/extensions here
+MOC_H_EXTS = '.cpp .cxx .hpp .hxx .h'.split()
+
+def can_delete(node):
+ """Imperfect moc cleanup which does not look for a Q_OBJECT macro in the files"""
+ if not node.name.endswith('.moc'):
+ return True
+ base = node.name[:-4]
+ p1 = node.parent.get_src()
+ p2 = node.parent.get_bld()
+ for k in MOC_H_EXTS:
+ h_name = base + k
+ n = p1.search_node(h_name)
+ if n:
+ return False
+ n = p2.search_node(h_name)
+ if n:
+ return False
+
+ # foo.cpp.moc, foo.h.moc, etc.
+ if base.endswith(k):
+ return False
+
+ return True
+
+# recursion over the nodes to find the stale files
+def stale_rec(node, nodes):
+ if node.abspath() in node.ctx.env[Build.CFG_FILES]:
+ return
+
+ if getattr(node, 'children', []):
+ for x in node.children.values():
+ if x.name != "c4che":
+ stale_rec(x, nodes)
+ else:
+ for ext in DYNAMIC_EXT:
+ if node.name.endswith(ext):
+ break
+ else:
+ if not node in nodes:
+ if can_delete(node):
+ Logs.warn('Removing stale file -> %r', node)
+ node.delete()
+
+old = Parallel.refill_task_list
+def refill_task_list(self):
+ iit = old(self)
+ bld = self.bld
+
+ # execute this operation only once
+ if getattr(self, 'stale_done', False):
+ return iit
+ self.stale_done = True
+
+ # this does not work in partial builds
+ if bld.targets != '*':
+ return iit
+
+ # this does not work in dynamic builds
+ if getattr(bld, 'post_mode') == Build.POST_AT_ONCE:
+ return iit
+
+ # obtain the nodes to use during the build
+ nodes = []
+ for tasks in bld.groups:
+ for x in tasks:
+ try:
+ nodes.extend(x.outputs)
+ except AttributeError:
+ pass
+
+ stale_rec(bld.bldnode, nodes)
+ return iit
+
+Parallel.refill_task_list = refill_task_list
+