52 lines
1.7 KiB
Python
52 lines
1.7 KiB
Python
class symbols(dict):
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def __init__(self, filename = None):
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self.modules = {}
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if filename is not None:
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self.read(file(filename))
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def cmp(self, new):
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symbols_ref = set(self.keys())
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symbols_new = set(new.keys())
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symbols_add = {}
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symbols_remove = {}
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symbols_change = {}
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for symbol in symbols_new - symbols_ref:
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symbols_add[symbol] = new[symbol]
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for symbol in symbols_ref.intersection(symbols_new):
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symbol_ref = self[symbol]
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symbol_new = new[symbol]
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ent = {'ref': symbol_ref, 'new': symbol_new, 'changes': {}}
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for i in ('module', 'version', 'export'):
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if symbol_ref[i] != symbol_new[i]:
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ent['changes'][i] = {'ref': symbol_ref, 'new': symbol_new}
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if ent['changes']:
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symbols_change[symbol] = ent
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for symbol in symbols_ref - symbols_new:
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symbols_remove[symbol] = self[symbol]
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return symbols_add, symbols_change, symbols_remove
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def read(self, file):
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for line in file.readlines():
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version, symbol, module, export = line.strip().split()
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if self.has_key(symbol):
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pass
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symbols = self.modules.get(module, set())
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symbols.add(symbol)
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self.modules[module] = symbols
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self[symbol] = {'symbol': symbol, 'module': module, 'version': version, 'export': export}
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def write(self, file):
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symbols = self.items()
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symbols.sort()
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for symbol, info in symbols:
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file.write("%(version)s %(symbol)s %(module)s %(export)s\n" % info)
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