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siggen.py: Abstract the runtime task dependency handling code in the generators 

This means that custom signature handlers can override specific parts
of the code without having to reimplement whole functions allowing them
more flexibility.

(Bitbake rev: 164195c068a656733cfe7aa07369c5ed6ea62ca5)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie 2012-01-20 16:16:08 +00:00
parent c4a8fab1a4
commit 7a8bae92ed
1 changed files with 18 additions and 7 deletions
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25
bitbake/lib/bb/siggen.py
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@ -62,9 +62,13 @@ class SignatureGeneratorBasic(SignatureGenerator):
self.runtaskdeps = {}
self.gendeps = {}
self.lookupcache = {}
self.pkgnameextract = re.compile("(?P<fn>.*)\..*")
self.basewhitelist = set((data.getVar("BB_HASHBASE_WHITELIST", True) or "").split())
self.taskwhitelist = data.getVar("BB_HASHTASK_WHITELIST", True) or None
self.taskwhitelist = None
self.init_rundepcheck(data)
def init_rundepcheck(self, data):
self.taskwhitelist = data.getVar("BB_HASHTASK_WHITELIST", True) or None
if self.taskwhitelist:
self.twl = re.compile(self.taskwhitelist)
else:
@ -131,17 +135,24 @@ class SignatureGeneratorBasic(SignatureGenerator):
for task in taskdeps:
d.setVar("BB_BASEHASH_task-%s" % task, self.basehash[fn + "." + task])
def rundep_check(self, fn, recipename, task, dep, depname):
# Return True if we should keep the dependency, False to drop it
# We only manipulate the dependencies for packages not in the whitelist
if self.twl and not self.twl.search(recipename):
# then process the actual dependencies
if self.twl.search(depname):
return False
return True
def get_taskhash(self, fn, task, deps, dataCache):
k = fn + "." + task
data = dataCache.basetaskhash[k]
self.runtaskdeps[k] = []
recipename = dataCache.pkg_fn[fn]
for dep in sorted(deps, key=clean_basepath):
# We only manipulate the dependencies for packages not in the whitelist
if self.twl and not self.twl.search(dataCache.pkg_fn[fn]):
# then process the actual dependencies
dep_fn = re.search("(?P<fn>.*)\..*", dep).group('fn')
if self.twl.search(dataCache.pkg_fn[dep_fn]):
continue
depname = dataCache.pkg_fn[self.pkgnameextract.search(dep).group('fn')]
if not self.rundep_check(fn, recipename, task, dep, depname):
continue
if dep not in self.taskhash:
bb.fatal("%s is not in taskhash, caller isn't calling in dependency order?", dep)
data = data + self.taskhash[dep]