comparison mercurial/changelog.py @ 45570:9a3563b46f52

changelog: add a `changes` property on `changelogrevision`

For the sidedata storage we are moving toward "all in one" block containing the
equivalent of a "ChangingFiles" instance. We do various refactoring beforehand
to prepare the usage of theses new data in the code.

Since the object use slots, the "property cache" tricks cannot be used, and we
cache the value manually.

45569:64d18e9e8508

    __slots__ = (
        '_offsets',
        '_text',
        '_sidedata',
        '_cpsd',
    )

    def __new__(cls, text, sidedata, cpsd):
        if not text:
            return _changelogrevision(extra=_defaultextra)

        self._offsets = (nl1, nl2, nl3, doublenl)
        self._text = text
        self._sidedata = sidedata
        self._cpsd = cpsd

        return self

    @property
    def manifest(self):

        raw = self._rawextra
        if raw is None:
            return _defaultextra

        return decodeextra(raw)

    @property
    def files(self):
        off = self._offsets
        if off[2] == off[3]:

45570:9a3563b46f52

    __slots__ = (
        '_offsets',
        '_text',
        '_sidedata',
        '_cpsd',
        '_changes',
    )

    def __new__(cls, text, sidedata, cpsd):
        if not text:
            return _changelogrevision(extra=_defaultextra)

        self._offsets = (nl1, nl2, nl3, doublenl)
        self._text = text
        self._sidedata = sidedata
        self._cpsd = cpsd
        self._changes = None

        return self

    @property
    def manifest(self):

        raw = self._rawextra
        if raw is None:
            return _defaultextra

        return decodeextra(raw)

    @property
    def changes(self):
        if self._changes is not None:
            return self._changes
        changes = metadata.ChangingFiles(
            touched=self.files or (),
            added=self.filesadded or (),
            removed=self.filesremoved or (),
            p1_copies=self.p1copies or {},
            p2_copies=self.p2copies or {},
        )
        self._changes = changes
        return changes

    @property
    def files(self):
        off = self._offsets
        if off[2] == off[3]: