tests/test-convert-bzr-treeroot.t

scmutil: rename filecacheentry to filecachesubentry

Upcoming patches will allow the file cache to watch over multiple files, and
call the decorated function again if any of the files change.

The particular use case for this is the bookmark store, which needs to be
invalidated if either .hg/bookmarks or .hg/bookmarks.current changes. (This
doesn't currently happen, which is a bug. This bug will also be fixed in
upcoming patches.)

  $ . "$TESTDIR/bzr-definitions"
  $ cat > treeset.py <<EOF
  > import sys
  > from bzrlib import workingtree
  > wt = workingtree.WorkingTree.open('.')
  > 
  > message, rootid = sys.argv[1:]
  > wt.set_root_id('tree_root-%s' % rootid)
  > wt.commit(message)
  > EOF

change the id of the tree root

  $ mkdir test-change-treeroot-id
  $ cd test-change-treeroot-id
  $ bzr init -q source
  $ cd source
  $ echo content > file
  $ bzr add -q file
  $ bzr commit -q -m 'Initial add'
  $ python ../../treeset.py 'Changed root' new
  $ cd ..
  $ hg convert source source-hg
  initializing destination source-hg repository
  scanning source...
  sorting...
  converting...
  1 Initial add
  0 Changed root
  $ manifest source-hg tip
  % manifest of tip
  644   file

  $ cd ..