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Make the auto-hinter more intelligent.

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Rather than only considering pairs of packages, we start from a "leaf"
package (i.e. one with an excuse which declares no dependencies on
other packages' excuses) and recursively build a list of packages
which are the dependency or reverse dependency of a package already
in the list.

Any list which is a subset of another list is ignored and the remaining
items are then processed as "easy" hints.

Signed-off-by: Adam D. Barratt <adam@adam-barratt.org.uk>
This commit is contained in:
Adam D. Barratt 2011-08-27 08:50:14 +00:00
parent 1f909bca4d
commit 0b4c63a832
1 changed files with 29 additions and 12 deletions
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41
britney.py
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@ -2848,20 +2848,37 @@ class Britney:
return hint
# loop on them
cache = []
candidates = []
for e in excuses:
excuse = excuses[e]
if e in self.sources['testing'] and self.sources['testing'][e][VERSION] == excuse.ver[1] or \
len(excuse.deps) == 0:
continue
hint = find_related(e, {})
if isinstance(hint, dict) and len(hint) and hint not in cache:
self.do_hint("easy", "autohinter", hint.items())
cache.append(hint)
hint = find_related(e, {}, True)
if isinstance(hint, dict) and e in hint and hint not in cache:
self.do_hint("easy", "autohinter", hint.items())
cache.append(hint)
if e in self.sources['testing'] and self.sources['testing'][e][VERSION] == excuse.ver[1]:
continue
if len(excuse.deps) > 0:
hint = find_related(e, {}, True)
if isinstance(hint, dict) and e in hint and hint not in candidates:
candidates.append(hint.items())
else:
items = [ (e, excuse.ver[1]) ]
for item, ver in items:
# excuses which depend on "item" or are depended on by it
items.extend( [ (x, excuses[x].ver[1]) for x in excuses if \
(item in excuses[x].deps or x in excuses[item].deps) \
and (x, excuses[x].ver[1]) not in items ] )
if len(items) > 1:
candidates.append(items)
to_skip = []
for i in range(len(candidates)):
for j in range(i+1, len(candidates)):
if i in to_skip or j in to_skip:
continue
elif frozenset(candidates[i]) >= frozenset(candidates[j]):
to_skip.append(j)
elif frozenset(candidates[i]) <= frozenset(candidates[j]):
to_skip.append(i)
for i in range(len(candidates)):
if i not in to_skip:
self.do_hint("easy", "autohinter", candidates[i])
def old_libraries(self):
"""Detect old libraries left in testing for smooth transitions