comparison mercurial/patch.py @ 24371:8a997bd73448

patch.trydiff: add a docstring

It took me a bit to figure out what this function actually does.

24370:3e8b06097d00

                    continue
        yield f1, f2, copyop

def trydiff(repo, revs, ctx1, ctx2, modified, added, removed,
            copy, getfilectx, opts, losedatafn, prefix):

    def gitindex(text):
        if not text:
            text = ""
        l = len(text)

24371:8a997bd73448

                    continue
        yield f1, f2, copyop

def trydiff(repo, revs, ctx1, ctx2, modified, added, removed,
            copy, getfilectx, opts, losedatafn, prefix):
    '''given input data, generate a diff and yield it in blocks

    If generating a diff would lose data like flags or binary data and
    losedatafn is not None, it will be called.

    prefix is added to every path in the diff output.'''

    def gitindex(text):
        if not text:
            text = ""
        l = len(text)