mercurial/localrepo.py

18113:da1714bd0250

        better alternative. But we are using this approach until it is ready.
        """
        cl = self.changelog
        return cl.rev(cl.tip())

    def _branchtags(self, partial, lrev):
        # TODO: rename this function?
        cl = self.changelog
        catip = self._cacheabletip()
        # if lrev == catip: cache is already up to date
        # if lrev >  catip: we have uncachable element in `partial` can't write
        #                   on disk
        if lrev < catip:

        # written to disk since it's not cacheable.
        tiprev = len(self) - 1
        if lrev < tiprev:
            ctxgen = (self[r] for r in cl.revs(lrev + 1, tiprev))
            self._updatebranchcache(partial, ctxgen)
        return partial

    @unfilteredmethod # Until we get a smarter cache management
    def updatebranchcache(self):
        cl = self.changelog
        tip = cl.tip()
        if self._branchcache is not None and self._branchcachetip == tip:
            return

        oldtip = self._branchcachetip
        self._branchcachetip = tip
        if oldtip is None or oldtip not in cl.nodemap:
            partial, last, lrev = self._readbranchcache()
        else:
            lrev = cl.rev(oldtip)
            partial = self._branchcache

        self._branchtags(partial, lrev)
        # this private cache holds all heads (not just the branch tips)
        self._branchcache = partial

    def branchmap(self):
        '''returns a dictionary {branch: [branchheads]}'''
        if self.changelog.filteredrevs:
            # some changeset are excluded we can't use the cache

18114:35ce17796e0e

        better alternative. But we are using this approach until it is ready.
        """
        cl = self.changelog
        return cl.rev(cl.tip())

    @unfilteredmethod # Until we get a smarter cache management
    def updatebranchcache(self):
        cl = self.changelog
        tip = cl.tip()
        if self._branchcache is not None and self._branchcachetip == tip:
            return

        oldtip = self._branchcachetip
        if oldtip is None or oldtip not in cl.nodemap:
            partial, last, lrev = self._readbranchcache()
        else:
            lrev = cl.rev(oldtip)
            partial = self._branchcache

        catip = self._cacheabletip()
        # if lrev == catip: cache is already up to date
        # if lrev >  catip: we have uncachable element in `partial` can't write
        #                   on disk
        if lrev < catip:

        # written to disk since it's not cacheable.
        tiprev = len(self) - 1
        if lrev < tiprev:
            ctxgen = (self[r] for r in cl.revs(lrev + 1, tiprev))
            self._updatebranchcache(partial, ctxgen)
        self._branchcache = partial
        self._branchcachetip = tip

    def branchmap(self):
        '''returns a dictionary {branch: [branchheads]}'''
        if self.changelog.filteredrevs:
            # some changeset are excluded we can't use the cache