Refactor: Optimize the WorkingCopy.IsChanged() method #1418
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* There's no need to populate a Dictionary just to diff the the "old" and "cur" Lists of Changes. * If the two lists are of equal length and no change has occurred, we can assume that they are also reported in equal sort-order (by git-status). * Thus, we only need to compare the two items at each successive index.
goran-w
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There's no need to populate a
Dictionaryjust to diff theoldandcurLists of Changes (in the equal list-length case).If there has been no changes in the working-copy between the two calls to
QueryLocalChanges, we can assume that the items in the two lists are reported (bygit-status) in equal sort-order. And consequently, if thePathvalue DOES differ between two items at equal index in the two equal-length lists, we can directly conclude that some change has occurred between these two calls.Thus, we only need to loop through the successive list-indices (of the two equal-length lists), comparing the
Path,IndexandWorkTreevalues of theoandcitems at each such index.Loosely related to PR #1401 (where this refacoring was included but not merged).