Issue 11802: filecmp cache was growing without bound.
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6ddefd7916
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@ -48,11 +48,12 @@ def cmp(f1, f2, shallow=True):
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if s1[1] != s2[1]:
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return False
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result = _cache.get((f1, f2))
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if result and (s1, s2) == result[:2]:
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return result[2]
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outcome = _do_cmp(f1, f2)
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_cache[f1, f2] = s1, s2, outcome
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outcome = _cache.get((f1, f2, s1, s2))
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if outcome is None:
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outcome = _do_cmp(f1, f2)
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if len(_cache) > 100: # limit the maximum size of the cache
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_cache.clear()
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_cache[f1, f2, s1, s2] = outcome
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return outcome
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def _sig(st):
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