Add ability to directly clone from all-history bundles

bundlerepos can be used as clone src, even if CWD is not a repo

mercurial/bundlerepo.py

@@ -12,8 +12,8 b' of the GNU General Public License, incor'
 
 from node import hex, nullid, short
 from i18n import _
-import changegroup, util, os, struct, bz2, tempfile, mdiff
-import localrepo, changelog, manifest, filelog, revlog
+import changegroup, util, os, struct, bz2, tempfile, shutil, mdiff
+import repo, localrepo, changelog, manifest, filelog, revlog
 
 class bundlerevlog(revlog.revlog):
     def __init__(self, opener, indexfile, bundlefile,
@@ -153,7 +153,13 b' class bundlefilelog(bundlerevlog, filelo'
 
 class bundlerepository(localrepo.localrepository):
     def __init__(self, ui, path, bundlename):
-        localrepo.localrepository.__init__(self, ui, path)
+        self._tempparent = None
+        try:
+            localrepo.localrepository.__init__(self, ui, path)
+        except repo.RepoError:
+            self._tempparent = tempfile.mkdtemp()
+            tmprepo = localrepo.instance(ui,self._tempparent,1)
+            localrepo.localrepository.__init__(self, ui, self._tempparent)
 
         if path:
             self._url = 'bundle:' + path + '+' + bundlename
@@ -252,6 +258,8 b' class bundlerepository(localrepo.localre'
         tempfile = getattr(self, 'tempfile', None)
         if tempfile is not None:
             os.unlink(tempfile)
+        if self._tempparent:
+            shutil.rmtree(self._tempparent, True)
 
 def instance(ui, path, create):
     if create: