comparison mercurial/changelog.py @ 45275:b3040b6739ce

commitctx: extract copy information encoding into extra into commit.py

The encoding of copy information into extra has multiple subcases and become
quite complicated (eg: empty list can be explicitly or implicitly stored for
example). In addition, it is niche experimental feature since as it affect the
hash, it is only suitable for user who don't mercurial for storage server side
(ie: Google).

Having this complexity part of the changelog will get in the way of further
cleanup. We could have to either move more of that logic into the changelog or
to move or extract more of the logic at the higher level. We take the second
approach and start gather logic in dedicated function in commit.py.

45274:4cde23ba076e

                raise error.StorageError(
                    _(b'the name \'%s\' is reserved') % branch
                )
        sortedfiles = sorted(files)
        sidedata = None
        if extra is not None:
            for name in (
                b'p1copies',
                b'p2copies',
                b'filesadded',
                b'filesremoved',
            ):
                extra.pop(name, None)
        if p1copies is not None:
            p1copies = metadata.encodecopies(sortedfiles, p1copies)
        if p2copies is not None:
            p2copies = metadata.encodecopies(sortedfiles, p2copies)
        if filesadded is not None:
            filesadded = metadata.encodefileindices(sortedfiles, filesadded)
        if filesremoved is not None:
            filesremoved = metadata.encodefileindices(sortedfiles, filesremoved)
        if self._copiesstorage == b'extra':
            extrasentries = p1copies, p2copies, filesadded, filesremoved
            if extra is None and any(x is not None for x in extrasentries):
                extra = {}
            if p1copies is not None:
                extra[b'p1copies'] = p1copies
            if p2copies is not None:
                extra[b'p2copies'] = p2copies
            if filesadded is not None:
                extra[b'filesadded'] = filesadded
            if filesremoved is not None:
                extra[b'filesremoved'] = filesremoved
        elif self._copiesstorage == b'changeset-sidedata':
            sidedata = {}
            if p1copies:
                sidedata[sidedatamod.SD_P1COPIES] = p1copies
            if p2copies:
                sidedata[sidedatamod.SD_P2COPIES] = p2copies
            if filesadded:
                sidedata[sidedatamod.SD_FILESADDED] = filesadded
            if filesremoved:
                sidedata[sidedatamod.SD_FILESREMOVED] = filesremoved
            if not sidedata:
                sidedata = None

        if extra:

45275:b3040b6739ce

                raise error.StorageError(
                    _(b'the name \'%s\' is reserved') % branch
                )
        sortedfiles = sorted(files)
        sidedata = None
        if self._copiesstorage == b'changeset-sidedata':
            sidedata = {}
            if p1copies:
                p1copies = metadata.encodecopies(sortedfiles, p1copies)
                sidedata[sidedatamod.SD_P1COPIES] = p1copies
            if p2copies:
                p2copies = metadata.encodecopies(sortedfiles, p2copies)
                sidedata[sidedatamod.SD_P2COPIES] = p2copies
            if filesadded:
                filesadded = metadata.encodefileindices(sortedfiles, filesadded)
                sidedata[sidedatamod.SD_FILESADDED] = filesadded
            if filesremoved:
                filesremoved = metadata.encodefileindices(
                    sortedfiles, filesremoved
                )
                sidedata[sidedatamod.SD_FILESREMOVED] = filesremoved
            if not sidedata:
                sidedata = None

        if extra: