55     for source in self:
56       (checksum, mtime, timestamp, dependencies) = self[source]
57       output += source+'\n'
142   def getChecksum(source, chunkSize = 1024*1024):  argument
145     if hasattr(source, 'close'):
146       f = source
148       f = open(source)
159   def getModificationTime(source):  argument
160     t = os.path.getmtime(source)
166   def updateSource(self, source, noChecksum = 0):  argument
170       (checksum, mtime, timestamp, dependencies) = self[source]
173     self.logPrint('Updating '+source+' in source database', 3, 'sourceDB')
177       checksum   = SourceDB.getChecksum(source)
178     self[source] = (checksum, SourceDB.getModificationTime(source), time.time(), dependencies)
181   def clearSource(self, source):  argument
183     if source in self:
185       self.logPrint('Clearing '+source+' from source database', 3, 'sourceDB')
186       (checksum, mtime, timestamp, dependencies) = self[source]
187       self[source] = ('', 0, time.time(), dependencies)
190   def getDependencies(self, source):  argument
192       (checksum, mtime, timestamp, dependencies) = self[source]
197   def addDependency(self, source, dependency):  argument
201       (checksum, mtime, timestamp, dependencies) = self[source]
206 …self.logPrint('Adding dependency '+dependency+' to source '+source+' in source database', 3, 'sour…
208     self[source] = (checksum, mtime, time.time(), dependencies)
213     for source in self:
214       self.logPrint('Calculating '+source, 3, 'sourceDB')
215       (checksum, mtime, timestamp, dependencies) = self[source]
218         file = open(source)
221           del self[source]
224       comps  = source.split('/')
244       self[source] = (checksum, mtime, timestamp, tuple(newDep))
284   def resolveDependency(self, source, dep):  argument
291     components = source.split(os.sep)
303 … if not matchName in self.sourceDB: raise RuntimeError('Invalid #include '+matchName+' in '+source)
306   def getNeighbors(self, source):  argument
307     file = open(source)
312         adj.append(self.resolveDependency(source, m.group('includeFile')))
324     for source in self.sourceDB:
326         dag[source] = self.getNeighbors(self, source)
329           del self[source]
360           for source in removes:
361             self.logPrint('Removing '+source, 3, 'sourceDB')
362             del self.sourceDB[source]