comparison mercurial/localrepo.py @ 4167:4574a8cb080f

Store empty (default) branch in branch cache, too.
Operations on this branch don't work otherwise.

Reading branches.cache had to be adjusted to allow an empty label.
Adjusted reading of the cache tip for symmetry, no functional change here.

4157:bfeff6dcac7a

        partial = {}
        try:
            f = self.opener("branches.cache")
            lines = f.read().split('\n')
            f.close()
            last, lrev = lines.pop(0).rstrip().split(" ", 1)
            last, lrev = bin(last), int(lrev)
            if not (lrev < self.changelog.count() and
                    self.changelog.node(lrev) == last): # sanity check
                # invalidate the cache
                raise ValueError('Invalid branch cache: unknown tip')
            for l in lines:
                if not l: continue
                node, label = l.rstrip().split(" ", 1)
                partial[label] = bin(node)
        except (KeyboardInterrupt, util.SignalInterrupt):
            raise
        except Exception, inst:
            if self.ui.debugflag:
                self.ui.warn(str(inst), '\n')

    def _updatebranchcache(self, partial, start, end):
        for r in xrange(start, end):
            c = self.changectx(r)
            b = c.branch()
            if b:
                partial[b] = c.node()

    def lookup(self, key):
        if key == '.':
            key = self.dirstate.parents()[0]
            if key == nullid:

4167:4574a8cb080f

        partial = {}
        try:
            f = self.opener("branches.cache")
            lines = f.read().split('\n')
            f.close()
            last, lrev = lines.pop(0).split(" ", 1)
            last, lrev = bin(last), int(lrev)
            if not (lrev < self.changelog.count() and
                    self.changelog.node(lrev) == last): # sanity check
                # invalidate the cache
                raise ValueError('Invalid branch cache: unknown tip')
            for l in lines:
                if not l: continue
                node, label = l.split(" ", 1)
                partial[label.strip()] = bin(node)
        except (KeyboardInterrupt, util.SignalInterrupt):
            raise
        except Exception, inst:
            if self.ui.debugflag:
                self.ui.warn(str(inst), '\n')

    def _updatebranchcache(self, partial, start, end):
        for r in xrange(start, end):
            c = self.changectx(r)
            b = c.branch()
            partial[b] = c.node()

    def lookup(self, key):
        if key == '.':
            key = self.dirstate.parents()[0]
            if key == nullid: