[PATCH 07 of 10] bundlerepo: store validated deltabase rev in basemap instead of node

[Benoit Boissinot]

Ok, I see you fixed PATCH 06 here.

LGTM, but please fix patch 06 and changed this patch accordingly.


On Wed, Jan 16, 2013 at 8:57 PM, Mads Kiilerich <mads at kiilerich.com> wrote:

> # HG changeset patch
> # User Mads Kiilerich <madski at unity3d.com>
> # Date 1358365301 -3600
> # Node ID f58e4e7dc9819af9b0766fc98472435208bdc1b5
> # Parent  d99799fc4f359b6f756c1a147523b1eaf3cc084f
> bundlerepo: store validated deltabase rev in basemap instead of node
>
> This avoids some lookups and aligns bundlerepo more with what revlog do.
>
> diff --git a/mercurial/bundlerepo.py b/mercurial/bundlerepo.py
> --- a/mercurial/bundlerepo.py
> +++ b/mercurial/bundlerepo.py
> @@ -31,7 +31,7 @@
>          opener = scmutil.readonlyvfs(opener)
>          revlog.revlog.__init__(self, opener, indexfile)
>          self.bundle = bundle
> -        self.basemap = {}
> +        self.basemap = {} # mapping rev to delta base rev
>          n = len(self)
>          chain = None
>          self.bundlerevs = set() # used by 'bundle()' revset expression
> @@ -60,10 +60,16 @@
>                  if p not in self.nodemap:
>                      raise error.LookupError(p, self.indexfile,
>                                              _("unknown parent"))
> +
> +            if deltabase not in self.nodemap:
> +                raise LookupError(deltabase, self.indexfile,
> +                                  _('unknown delta base'))
> +
> +            baserev = self.rev(deltabase)
>              # start, size, full unc. size, base (unused), link, p1, p2,
> node
>              e = (revlog.offset_type(start, 0), size, -1, -1, link,
>                   self.rev(p1), self.rev(p2), node)
> -            self.basemap[n] = deltabase
> +            self.basemap[n] = baserev
>              self.index.insert(-1, e)
>              self.nodemap[node] = n
>              self.bundlerevs.add(n)
> @@ -83,7 +89,7 @@
>          """return or calculate a delta between two revisions"""
>          if rev1 in self.basemap and rev2 in self.basemap:
>              # hot path for bundle
> -            revb = self.rev(self.basemap[rev2])
> +            revb = self.basemap[rev2]
>              if revb == rev1:
>                  return self._chunk(rev2)
>          elif rev1 not in self.basemap and rev2 not in self.basemap:
> @@ -115,7 +121,7 @@
>                  text = self._cache[2]
>                  break
>              chain.append(iterrev)
> -            iterrev = self.rev(self.basemap[rev])
> +            iterrev = self.basemap[iterrev]
>          if text is None:
>              text = revlog.revlog.revision(self, iterrev)
>
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