strip: fix bug with treemanifests and unordered linkrevs

This is the treemanifest version of f45f7390c1c5 (strip: calculate
list of extra nodes to save and pass it to changegroupsubset,
2008-01-19).

Differential Revision: https://phab.mercurial-scm.org/D6795

mercurial/repair.py

@@ -81,14 +81,12 b' def _collectrevlog(revlog, striprev):'
     _, brokenset = revlog.getstrippoint(striprev)
     return [revlog.linkrev(r) for r in brokenset]
 
-def _collectmanifest(repo, striprev):
-    return _collectrevlog(repo.manifestlog.getstorage(b''), striprev)
-
 def _collectbrokencsets(repo, files, striprev):
     """return the changesets which will be broken by the truncation"""
     s = set()
 
-    s.update(_collectmanifest(repo, striprev))
+    for revlog in manifestrevlogs(repo):
+        s.update(_collectrevlog(revlog, striprev))
     for fname in files:
         s.update(_collectrevlog(repo.file(fname), striprev))
 

tests/test-strip-cross.t

@@ -203,14 +203,9 b' Now a similar test for a non-root manife'
   checking changesets
   checking manifests
   checking directory manifests
-   dir/@0: parent-directory manifest refers to unknown revision 1c556153fe54
-   dir/@1: parent-directory manifest refers to unknown revision 1f76dba919fd
   crosschecking files in changesets and manifests
   checking files
-   dir/other@1: 5d9299349fc0 not in manifests
   checked 3 changesets with 4 changes to 3 files
-  3 integrity errors encountered!
-  (first damaged changeset appears to be 0)
   
   % Trying to strip revision 3
   saved backup bundle to $TESTTMP/treemanifests/3/.hg/strip-backup/e4e3de5c3cb2-f4c70376-backup.hg