copies: report found copies sorted

mercurial/copies.py

@@ -1,386 +1,386 b''
 # copies.py - copy detection for Mercurial
 #
 # Copyright 2008 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
 import util
 import heapq
 
 def _nonoverlap(d1, d2, d3):
     "Return list of elements in d1 not in d2 or d3"
     return sorted([d for d in d1 if d not in d3 and d not in d2])
 
 def _dirname(f):
     s = f.rfind("/")
     if s == -1:
         return ""
     return f[:s]
 
 def _findlimit(repo, a, b):
     """Find the earliest revision that's an ancestor of a or b but not both,
     None if no such revision exists.
     """
     # basic idea:
     # - mark a and b with different sides
     # - if a parent's children are all on the same side, the parent is
     #   on that side, otherwise it is on no side
     # - walk the graph in topological order with the help of a heap;
     #   - add unseen parents to side map
     #   - clear side of any parent that has children on different sides
     #   - track number of interesting revs that might still be on a side
     #   - track the lowest interesting rev seen
     #   - quit when interesting revs is zero
 
     cl = repo.changelog
     working = len(cl) # pseudo rev for the working directory
     if a is None:
         a = working
     if b is None:
         b = working
 
     side = {a: -1, b: 1}
     visit = [-a, -b]
     heapq.heapify(visit)
     interesting = len(visit)
     hascommonancestor = False
     limit = working
 
     while interesting:
         r = -heapq.heappop(visit)
         if r == working:
             parents = [cl.rev(p) for p in repo.dirstate.parents()]
         else:
             parents = cl.parentrevs(r)
         for p in parents:
             if p < 0:
                 continue
             if p not in side:
                 # first time we see p; add it to visit
                 side[p] = side[r]
                 if side[p]:
                     interesting += 1
                 heapq.heappush(visit, -p)
             elif side[p] and side[p] != side[r]:
                 # p was interesting but now we know better
                 side[p] = 0
                 interesting -= 1
                 hascommonancestor = True
         if side[r]:
             limit = r # lowest rev visited
             interesting -= 1
 
     if not hascommonancestor:
         return None
     return limit
 
 def _chain(src, dst, a, b):
     '''chain two sets of copies a->b'''
     t = a.copy()
     for k, v in b.iteritems():
         if v in t:
             # found a chain
             if t[v] != k:
                 # file wasn't renamed back to itself
                 t[k] = t[v]
             if v not in dst:
                 # chain was a rename, not a copy
                 del t[v]
         if v in src:
             # file is a copy of an existing file
             t[k] = v
 
     # remove criss-crossed copies
     for k, v in t.items():
         if k in src and v in dst:
             del t[k]
 
     return t
 
 def _tracefile(fctx, actx):
     '''return file context that is the ancestor of fctx present in actx'''
     stop = actx.rev()
     am = actx.manifest()
 
     for f in fctx.ancestors():
         if am.get(f.path(), None) == f.filenode():
             return f
         if f.rev() < stop:
             return None
 
 def _dirstatecopies(d):
     ds = d._repo.dirstate
     c = ds.copies().copy()
     for k in c.keys():
         if ds[k] not in 'anm':
             del c[k]
     return c
 
 def _forwardcopies(a, b):
     '''find {dst@b: src@a} copy mapping where a is an ancestor of b'''
 
     # check for working copy
     w = None
     if b.rev() is None:
         w = b
         b = w.p1()
         if a == b:
             # short-circuit to avoid issues with merge states
             return _dirstatecopies(w)
 
     # find where new files came from
     # we currently don't try to find where old files went, too expensive
     # this means we can miss a case like 'hg rm b; hg cp a b'
     cm = {}
     for f in b:
         if f not in a:
             ofctx = _tracefile(b[f], a)
             if ofctx:
                 cm[f] = ofctx.path()
 
     # combine copies from dirstate if necessary
     if w is not None:
         cm = _chain(a, w, cm, _dirstatecopies(w))
 
     return cm
 
 def _backwardrenames(a, b):
     # Even though we're not taking copies into account, 1:n rename situations
     # can still exist (e.g. hg cp a b; hg mv a c). In those cases we
     # arbitrarily pick one of the renames.
     f = _forwardcopies(b, a)
     r = {}
     for k, v in sorted(f.iteritems()):
         # remove copies
         if v in a:
             continue
         r[v] = k
     return r
 
 def pathcopies(x, y):
     '''find {dst@y: src@x} copy mapping for directed compare'''
     if x == y or not x or not y:
         return {}
     a = y.ancestor(x)
     if a == x:
         return _forwardcopies(x, y)
     if a == y:
         return _backwardrenames(x, y)
     return _chain(x, y, _backwardrenames(x, a), _forwardcopies(a, y))
 
 def mergecopies(repo, c1, c2, ca):
     """
     Find moves and copies between context c1 and c2 that are relevant
     for merging.
 
     Returns four dicts: "copy", "movewithdir", "diverge", and
     "renamedelete".
 
     "copy" is a mapping from destination name -> source name,
     where source is in c1 and destination is in c2 or vice-versa.
 
     "movewithdir" is a mapping from source name -> destination name,
     where the file at source present in one context but not the other
     needs to be moved to destination by the merge process, because the
     other context moved the directory it is in.
 
     "diverge" is a mapping of source name -> list of destination names
     for divergent renames.
 
     "renamedelete" is a mapping of source name -> list of destination
     names for files deleted in c1 that were renamed in c2 or vice-versa.
     """
     # avoid silly behavior for update from empty dir
     if not c1 or not c2 or c1 == c2:
         return {}, {}, {}, {}
 
     # avoid silly behavior for parent -> working dir
     if c2.node() is None and c1.node() == repo.dirstate.p1():
         return repo.dirstate.copies(), {}, {}, {}
 
     limit = _findlimit(repo, c1.rev(), c2.rev())
     if limit is None:
         # no common ancestor, no copies
         return {}, {}, {}, {}
     m1 = c1.manifest()
     m2 = c2.manifest()
     ma = ca.manifest()
 
     def makectx(f, n):
         if len(n) != 20: # in a working context?
             if c1.rev() is None:
                 return c1.filectx(f)
             return c2.filectx(f)
         return repo.filectx(f, fileid=n)
 
     ctx = util.lrucachefunc(makectx)
     copy = {}
     movewithdir = {}
     fullcopy = {}
     diverge = {}
 
     def related(f1, f2, limit):
         # Walk back to common ancestor to see if the two files originate
         # from the same file. Since workingfilectx's rev() is None it messes
         # up the integer comparison logic, hence the pre-step check for
         # None (f1 and f2 can only be workingfilectx's initially).
 
         if f1 == f2:
             return f1 # a match
 
         g1, g2 = f1.ancestors(), f2.ancestors()
         try:
             f1r, f2r = f1.rev(), f2.rev()
 
             if f1r is None:
                 f1 = g1.next()
             if f2r is None:
                 f2 = g2.next()
 
             while True:
                 f1r, f2r = f1.rev(), f2.rev()
                 if f1r > f2r:
                     f1 = g1.next()
                 elif f2r > f1r:
                     f2 = g2.next()
                 elif f1 == f2:
                     return f1 # a match
                 elif f1r == f2r or f1r < limit or f2r < limit:
                     return False # copy no longer relevant
         except StopIteration:
             return False
 
     def checkcopies(f, m1, m2):
         '''check possible copies of f from m1 to m2'''
         of = None
         seen = set([f])
         for oc in ctx(f, m1[f]).ancestors():
             ocr = oc.rev()
             of = oc.path()
             if of in seen:
                 # check limit late - grab last rename before
                 if ocr < limit:
                     break
                 continue
             seen.add(of)
 
             fullcopy[f] = of # remember for dir rename detection
             if of not in m2:
                 continue # no match, keep looking
             if m2[of] == ma.get(of):
                 break # no merge needed, quit early
             c2 = ctx(of, m2[of])
             cr = related(oc, c2, ca.rev())
             if cr and (of == f or of == c2.path()): # non-divergent
                 copy[f] = of
                 of = None
                 break
 
         if of in ma:
             diverge.setdefault(of, []).append(f)
 
     repo.ui.debug("  searching for copies back to rev %d\n" % limit)
 
     u1 = _nonoverlap(m1, m2, ma)
     u2 = _nonoverlap(m2, m1, ma)
 
     if u1:
         repo.ui.debug("  unmatched files in local:\n   %s\n"
                       % "\n   ".join(u1))
     if u2:
         repo.ui.debug("  unmatched files in other:\n   %s\n"
                       % "\n   ".join(u2))
 
     for f in u1:
         checkcopies(f, m1, m2)
     for f in u2:
         checkcopies(f, m2, m1)
 
     renamedelete = {}
     renamedelete2 = set()
     diverge2 = set()
     for of, fl in diverge.items():
         if len(fl) == 1 or of in c1 or of in c2:
             del diverge[of] # not actually divergent, or not a rename
             if of not in c1 and of not in c2:
                 # renamed on one side, deleted on the other side, but filter
                 # out files that have been renamed and then deleted
                 renamedelete[of] = [f for f in fl if f in c1 or f in c2]
                 renamedelete2.update(fl) # reverse map for below
         else:
             diverge2.update(fl) # reverse map for below
 
     if fullcopy:
         repo.ui.debug("  all copies found (* = to merge, ! = divergent, "
                       "% = renamed and deleted):\n")
-        for f in fullcopy:
+        for f in sorted(fullcopy):
             note = ""
             if f in copy:
                 note += "*"
             if f in diverge2:
                 note += "!"
             if f in renamedelete2:
                 note += "%"
             repo.ui.debug("   src: '%s' -> dst: '%s' %s\n" % (fullcopy[f], f,
                                                               note))
     del diverge2
 
     if not fullcopy:
         return copy, movewithdir, diverge, renamedelete
 
     repo.ui.debug("  checking for directory renames\n")
 
     # generate a directory move map
     d1, d2 = c1.dirs(), c2.dirs()
     d1.add('')
     d2.add('')
     invalid = set()
     dirmove = {}
 
     # examine each file copy for a potential directory move, which is
     # when all the files in a directory are moved to a new directory
     for dst, src in fullcopy.iteritems():
         dsrc, ddst = _dirname(src), _dirname(dst)
         if dsrc in invalid:
             # already seen to be uninteresting
             continue
         elif dsrc in d1 and ddst in d1:
             # directory wasn't entirely moved locally
             invalid.add(dsrc)
         elif dsrc in d2 and ddst in d2:
             # directory wasn't entirely moved remotely
             invalid.add(dsrc)
         elif dsrc in dirmove and dirmove[dsrc] != ddst:
             # files from the same directory moved to two different places
             invalid.add(dsrc)
         else:
             # looks good so far
             dirmove[dsrc + "/"] = ddst + "/"
 
     for i in invalid:
         if i in dirmove:
             del dirmove[i]
     del d1, d2, invalid
 
     if not dirmove:
         return copy, movewithdir, diverge, renamedelete
 
     for d in dirmove:
         repo.ui.debug("   discovered dir src: '%s' -> dst: '%s'\n" %
                       (d, dirmove[d]))
 
     # check unaccounted nonoverlapping files against directory moves
     for f in u1 + u2:
         if f not in fullcopy:
             for d in dirmove:
                 if f.startswith(d):
                     # new file added in a directory that was moved, move it
                     df = dirmove[d] + f[len(d):]
                     if df not in copy:
                         movewithdir[f] = df
                         repo.ui.debug(("   pending file src: '%s' -> "
                                        "dst: '%s'\n") % (f, df))
                     break
 
     return copy, movewithdir, diverge, renamedelete

tests/test-copy-move-merge.t

@@ -1,64 +1,64 b''
   $ hg init t
   $ cd t
 
   $ echo 1 > a
   $ hg ci -qAm "first"
 
   $ hg cp a b
   $ hg mv a c
   $ echo 2 >> b
   $ echo 2 >> c
 
   $ hg ci -qAm "second"
 
   $ hg co -C 0
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
 
   $ echo 0 > a
   $ echo 1 >> a
 
   $ hg ci -qAm "other"
 
   $ hg merge --debug
     searching for copies back to rev 1
     unmatched files in other:
      b
      c
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
+     src: 'a' -> dst: 'b' *
      src: 'a' -> dst: 'c' *
-     src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: b8bf91eeebbc, local: add3f11052fa+, remote: 17c05bb7fcb6
    a: remote moved to b -> m
    a: remote moved to c -> m
   preserving a for resolve of b
   preserving a for resolve of c
   removing a
   updating: a 1/2 files (50.00%)
   picked tool 'internal:merge' for b (binary False symlink False)
   merging a and b to b
   my b@add3f11052fa+ other b@17c05bb7fcb6 ancestor a@b8bf91eeebbc
    premerge successful
   updating: a 2/2 files (100.00%)
   picked tool 'internal:merge' for c (binary False symlink False)
   merging a and c to c
   my c@add3f11052fa+ other c@17c05bb7fcb6 ancestor a@b8bf91eeebbc
    premerge successful
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
 file b
   $ cat b
   0
   1
   2
 
 file c
   $ cat c
   0
   1
   2
 
   $ cd ..

tests/test-rename-merge1.t

@@ -1,195 +1,195 b''
   $ hg init
 
   $ echo "[merge]" >> .hg/hgrc
   $ echo "followcopies = 1" >> .hg/hgrc
 
   $ echo foo > a
   $ echo foo > a2
   $ hg add a a2
   $ hg ci -m "start"
 
   $ hg mv a b
   $ hg mv a2 b2
   $ hg ci -m "rename"
 
   $ hg co 0
   2 files updated, 0 files merged, 2 files removed, 0 files unresolved
 
   $ echo blahblah > a
   $ echo blahblah > a2
   $ hg mv a2 c2
   $ hg ci -m "modify"
   created new head
 
   $ hg merge -y --debug
     searching for copies back to rev 1
     unmatched files in local:
      c2
     unmatched files in other:
      b
      b2
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
-     src: 'a2' -> dst: 'c2' !
      src: 'a' -> dst: 'b' *
      src: 'a2' -> dst: 'b2' !
+     src: 'a2' -> dst: 'c2' !
     checking for directory renames
    a2: divergent renames -> dr
   resolving manifests
    overwrite: False, partial: False
    ancestor: af1939970a1c, local: 044f8520aeeb+, remote: 85c198ef2f6c
    a: remote moved to b -> m
    b2: remote created -> g
   preserving a for resolve of b
   removing a
   updating: a 1/3 files (33.33%)
   picked tool 'internal:merge' for b (binary False symlink False)
   merging a and b to b
   my b@044f8520aeeb+ other b@85c198ef2f6c ancestor a@af1939970a1c
    premerge successful
   updating: a2 2/3 files (66.67%)
   note: possible conflict - a2 was renamed multiple times to:
    c2
    b2
   updating: b2 3/3 files (100.00%)
   getting b2
   1 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ hg status -AC
   M b
     a
   M b2
   R a
   C c2
 
   $ cat b
   blahblah
 
   $ hg ci -m "merge"
 
   $ hg debugindex b
      rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
        0         0      67  .....       1 57eacc201a7f 000000000000 000000000000 (re)
        1        67      72  .....       3 4727ba907962 000000000000 57eacc201a7f (re)
 
   $ hg debugrename b
   b renamed from a:dd03b83622e78778b403775d0d074b9ac7387a66
 
 This used to trigger a "divergent renames" warning, despite no renames
 
   $ hg cp b b3
   $ hg cp b b4
   $ hg ci -A -m 'copy b twice'
   $ hg up eb92d88a9712
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg up
   2 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg rm b3 b4
   $ hg ci -m 'clean up a bit of our mess'
 
 We'd rather not warn on divergent renames done in the same changeset (issue2113)
 
   $ hg cp b b3
   $ hg mv b b4
   $ hg ci -A -m 'divergent renames in same changeset'
   $ hg up c761c6948de0
   1 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ hg up
   2 files updated, 0 files merged, 1 files removed, 0 files unresolved
 
 Check for issue2642
 
   $ hg init t
   $ cd t
 
   $ echo c0 > f1
   $ hg ci -Aqm0
 
   $ hg up null -q
   $ echo c1 > f1 # backport
   $ hg ci -Aqm1
   $ hg mv f1 f2
   $ hg ci -qm2
 
   $ hg up 0 -q
   $ hg merge 1 -q --tool internal:local
   $ hg ci -qm3
 
   $ hg merge 2
   merging f1 and f2 to f2
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ cat f2
   c0
 
   $ cd ..
 
 Check for issue2089
 
   $ hg init repo2089
   $ cd repo2089
 
   $ echo c0 > f1
   $ hg ci -Aqm0
 
   $ hg up null -q
   $ echo c1 > f1
   $ hg ci -Aqm1
 
   $ hg up 0 -q
   $ hg merge 1 -q --tool internal:local
   $ echo c2 > f1
   $ hg ci -qm2
 
   $ hg up 1 -q
   $ hg mv f1 f2
   $ hg ci -Aqm3
 
   $ hg up 2 -q
   $ hg merge 3
   merging f1 and f2 to f2
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
 
   $ cat f2
   c2
 
   $ cd ..
 
 Check for issue3074
 
   $ hg init repo3074
   $ cd repo3074
   $ echo foo > file
   $ hg add file
   $ hg commit -m "added file"
   $ hg mv file newfile
   $ hg commit -m "renamed file"
   $ hg update 0
   1 files updated, 0 files merged, 1 files removed, 0 files unresolved
   $ hg rm file
   $ hg commit -m "deleted file"
   created new head
   $ hg merge --debug
     searching for copies back to rev 1
     unmatched files in other:
      newfile
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'file' -> dst: 'newfile' %
     checking for directory renames
    file: rename and delete -> rd
   resolving manifests
    overwrite: False, partial: False
    ancestor: 19d7f95df299, local: 0084274f6b67+, remote: 5d32493049f0
    newfile: remote created -> g
   updating: file 1/2 files (50.00%)
   note: possible conflict - file was deleted and renamed to:
    newfile
   updating: newfile 2/2 files (100.00%)
   getting newfile
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg status
   M newfile
   $ cd ..

tests/test-rename-merge2.t

@@ -1,754 +1,754 b''
 
   $ mkdir -p t
   $ cd t
   $ cat <<EOF > merge
   > import sys, os
   > f = open(sys.argv[1], "wb")
   > f.write("merge %s %s %s" % (sys.argv[1], sys.argv[2], sys.argv[3]))
   > f.close()
   > EOF
 
 perform a test merge with possible renaming
 args:
 $1 = action in local branch
 $2 = action in remote branch
 $3 = action in working dir
 $4 = expected result
 
   $ tm()
   > {
   >     hg init t
   >     cd t
   >     echo "[merge]" >> .hg/hgrc
   >     echo "followcopies = 1" >> .hg/hgrc
   > 
   >     # base
   >     echo base > a
   >     echo base > rev # used to force commits
   >     hg add a rev
   >     hg ci -m "base"
   > 
   >     # remote
   >     echo remote > rev
   >     if [ "$2" != "" ] ; then $2 ; fi
   >     hg ci -m "remote"
   > 
   >     # local
   >     hg co -q 0
   >     echo local > rev
   >     if [ "$1" != "" ] ; then $1 ; fi
   >     hg ci -m "local"
   > 
   >     # working dir
   >     echo local > rev
   >     if [ "$3" != "" ] ; then $3 ; fi
   > 
   >     # merge
   >     echo "--------------"
   >     echo "test L:$1 R:$2 W:$3 - $4"
   >     echo "--------------"
   >     hg merge -y --debug --traceback --tool="python ../merge"
   > 
   >     echo "--------------"
   >     hg status -camC -X rev
   > 
   >     hg ci -m "merge"
   > 
   >     echo "--------------"
   >     echo
   > 
   >     cd ..
   >     rm -r t
   > }
   $ up() {
   >     cp rev $1
   >     hg add $1 2> /dev/null
   >     if [ "$2" != "" ] ; then
   >         cp rev $2
   >         hg add $2 2> /dev/null
   >     fi
   > }
   $ uc() { up $1; hg cp $1 $2; } # update + copy
   $ um() { up $1; hg mv $1 $2; }
   $ nc() { hg cp $1 $2; } # just copy
   $ nm() { hg mv $1 $2; } # just move
   $ tm "up a  " "nc a b" "      " "1  get local a to b"
   created new head
   --------------
   test L:up a   R:nc a b W:       - 1  get local a to b
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: e300d1c794ec+, remote: 4ce40f5aca24
    rev: versions differ -> m
    a: remote copied to b -> m
   preserving a for resolve of b
   preserving rev for resolve of rev
   updating: a 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging a and b to b
   my b@e300d1c794ec+ other b@4ce40f5aca24 ancestor a@924404dff337
    premerge successful
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@e300d1c794ec+ other rev@4ce40f5aca24 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   C a
   --------------
   
   $ tm "nc a b" "up a  " "      " "2  get rem change to a and b"
   created new head
   --------------
   test L:nc a b R:up a   W:       - 2  get rem change to a and b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 86a2aa42fc76+, remote: f4db7e329e71
    a: remote is newer -> g
    b: local copied/moved to a -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@86a2aa42fc76+ other a@f4db7e329e71 ancestor a@924404dff337
    premerge successful
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@f4db7e329e71 ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
     a
   --------------
   
   $ tm "up a  " "nm a b" "      " "3  get local a change to b, remove a"
   created new head
   --------------
   test L:up a   R:nm a b W:       - 3  get local a change to b, remove a
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: e300d1c794ec+, remote: bdb19105162a
    rev: versions differ -> m
    a: remote moved to b -> m
   preserving a for resolve of b
   preserving rev for resolve of rev
   removing a
   updating: a 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging a and b to b
   my b@e300d1c794ec+ other b@bdb19105162a ancestor a@924404dff337
    premerge successful
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@e300d1c794ec+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
   $ tm "nm a b" "up a  " "      " "4  get remote change to b"
   created new head
   --------------
   test L:nm a b R:up a   W:       - 4  get remote change to b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 02963e448370+, remote: f4db7e329e71
    b: local copied/moved to a -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@02963e448370+ other a@f4db7e329e71 ancestor a@924404dff337
    premerge successful
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@f4db7e329e71 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
   $ tm "      " "nc a b" "      " "5  get b"
   created new head
   --------------
   test L:       R:nc a b W:       - 5  get b
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' 
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 94b33a1b7f2d+, remote: 4ce40f5aca24
    rev: versions differ -> m
    b: remote created -> g
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   getting b
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@94b33a1b7f2d+ other rev@4ce40f5aca24 ancestor rev@924404dff337
   1 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "nc a b" "      " "      " "6  nothing"
   created new head
   --------------
   test L:nc a b R:       W:       - 6  nothing
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' 
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 97c705ade336
    rev: versions differ -> m
   preserving rev for resolve of rev
   updating: rev 1/1 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@97c705ade336 ancestor rev@924404dff337
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   C a
   C b
   --------------
   
   $ tm "      " "nm a b" "      " "7  get b"
   created new head
   --------------
   test L:       R:nm a b W:       - 7  get b
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' 
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 94b33a1b7f2d+, remote: bdb19105162a
    a: other deleted -> r
    rev: versions differ -> m
    b: remote created -> g
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   removing a
   updating: b 2/3 files (66.67%)
   getting b
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@94b33a1b7f2d+ other rev@bdb19105162a ancestor rev@924404dff337
   1 files updated, 1 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
   $ tm "nm a b" "      " "      " "8  nothing"
   created new head
   --------------
   test L:nm a b R:       W:       - 8  nothing
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' 
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 02963e448370+, remote: 97c705ade336
    rev: versions differ -> m
   preserving rev for resolve of rev
   updating: rev 1/1 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@97c705ade336 ancestor rev@924404dff337
   0 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   C b
   --------------
   
   $ tm "um a b" "um a b" "      " "9  do merge with ancestor in a"
   created new head
   --------------
   test L:um a b R:um a b W:       - 9  do merge with ancestor in a
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 62e7bf090eba+, remote: 49b6d8032493
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@62e7bf090eba+ other b@49b6d8032493 ancestor a@924404dff337
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@62e7bf090eba+ other rev@49b6d8032493 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
 
 m "um a c" "um x c" "      " "10 do merge with no ancestor"
 
   $ tm "nm a b" "nm a c" "      " "11 get c, keep b"
   created new head
   --------------
   test L:nm a b R:nm a c W:       - 11 get c, keep b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     unmatched files in other:
      c
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
+     src: 'a' -> dst: 'b' !
      src: 'a' -> dst: 'c' !
-     src: 'a' -> dst: 'b' !
     checking for directory renames
    a: divergent renames -> dr
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 02963e448370+, remote: fe905ef2c33e
    rev: versions differ -> m
    c: remote created -> g
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   note: possible conflict - a was renamed multiple times to:
    b
    c
   updating: c 2/3 files (66.67%)
   getting c
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@fe905ef2c33e ancestor rev@924404dff337
   1 files updated, 1 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M c
   C b
   --------------
   
   $ tm "nc a b" "up b  " "      " "12 merge b no ancestor"
   created new head
   --------------
   test L:nc a b R:up b   W:       - 12 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 86a2aa42fc76+, remote: af30c7647fc7
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@86a2aa42fc76+ other b@af30c7647fc7 ancestor b@000000000000
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@af30c7647fc7 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "up b  " "nm a b" "      " "13 merge b no ancestor"
   created new head
   --------------
   test L:up b   R:nm a b W:       - 13 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 59318016310c+, remote: bdb19105162a
    a: other deleted -> r
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   removing a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
   $ tm "nc a b" "up a b" "      " "14 merge b no ancestor"
   created new head
   --------------
   test L:nc a b R:up a b W:       - 14 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 8dbce441892a
    a: remote is newer -> g
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
   --------------
   
   $ tm "up b  " "nm a b" "      " "15 merge b no ancestor, remove a"
   created new head
   --------------
   test L:up b   R:nm a b W:       - 15 merge b no ancestor, remove a
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 59318016310c+, remote: bdb19105162a
    a: other deleted -> r
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   removing a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@59318016310c+ other b@bdb19105162a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@59318016310c+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 1 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   --------------
   
   $ tm "nc a b" "up a b" "      " "16 get a, merge b no ancestor"
   created new head
   --------------
   test L:nc a b R:up a b W:       - 16 get a, merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 86a2aa42fc76+, remote: 8dbce441892a
    a: remote is newer -> g
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@86a2aa42fc76+ other b@8dbce441892a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@86a2aa42fc76+ other rev@8dbce441892a ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
   --------------
   
   $ tm "up a b" "nc a b" "      " "17 keep a, merge b no ancestor"
   created new head
   --------------
   test L:up a b R:nc a b W:       - 17 keep a, merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 0b76e65c8289+, remote: 4ce40f5aca24
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@0b76e65c8289+ other b@4ce40f5aca24 ancestor b@000000000000
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@0b76e65c8289+ other rev@4ce40f5aca24 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "nm a b" "up a b" "      " "18 merge b no ancestor"
   created new head
   --------------
   test L:nm a b R:up a b W:       - 18 merge b no ancestor
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 02963e448370+, remote: 8dbce441892a
    b: versions differ -> m
    rev: versions differ -> m
   remote changed a which local deleted
   use (c)hanged version or leave (d)eleted? c
    a: prompt recreating -> g
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   getting a
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@02963e448370+ other b@8dbce441892a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@8dbce441892a ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M a
   M b
   --------------
   
   $ tm "up a b" "nm a b" "      " "19 merge b no ancestor, prompt remove a"
   created new head
   --------------
   test L:up a b R:nm a b W:       - 19 merge b no ancestor, prompt remove a
   --------------
     searching for copies back to rev 1
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 0b76e65c8289+, remote: bdb19105162a
    local changed a which remote deleted
   use (c)hanged version or (d)elete? c
    a: prompt keep -> a
    b: versions differ -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: a 1/3 files (33.33%)
   updating: b 2/3 files (66.67%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b
   my b@0b76e65c8289+ other b@bdb19105162a ancestor b@000000000000
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@0b76e65c8289+ other rev@bdb19105162a ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
   C a
   --------------
   
   $ tm "up a  " "um a b" "      " "20 merge a and b to b, remove a"
   created new head
   --------------
   test L:up a   R:um a b W:       - 20 merge a and b to b, remove a
   --------------
     searching for copies back to rev 1
     unmatched files in other:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: e300d1c794ec+, remote: 49b6d8032493
    rev: versions differ -> m
    a: remote moved to b -> m
   preserving a for resolve of b
   preserving rev for resolve of rev
   removing a
   updating: a 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging a and b to b
   my b@e300d1c794ec+ other b@49b6d8032493 ancestor a@924404dff337
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@e300d1c794ec+ other rev@49b6d8032493 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
   $ tm "um a b" "up a  " "      " "21 merge a and b to b"
   created new head
   --------------
   test L:um a b R:up a   W:       - 21 merge a and b to b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 62e7bf090eba+, remote: f4db7e329e71
    b: local copied/moved to a -> m
    rev: versions differ -> m
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/2 files (50.00%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@62e7bf090eba+ other a@f4db7e329e71 ancestor a@924404dff337
   updating: rev 2/2 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@62e7bf090eba+ other rev@f4db7e329e71 ancestor rev@924404dff337
   0 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   --------------
   
 
 m "nm a b" "um x a" "      " "22 get a, keep b"
 
   $ tm "nm a b" "up a c" "      " "23 get c, keep b"
   created new head
   --------------
   test L:nm a b R:up a c W:       - 23 get c, keep b
   --------------
     searching for copies back to rev 1
     unmatched files in local:
      b
     unmatched files in other:
      c
     all copies found (* = to merge, ! = divergent, % = renamed and deleted):
      src: 'a' -> dst: 'b' *
     checking for directory renames
   resolving manifests
    overwrite: False, partial: False
    ancestor: 924404dff337, local: 02963e448370+, remote: 2b958612230f
    b: local copied/moved to a -> m
    rev: versions differ -> m
    c: remote created -> g
   preserving b for resolve of b
   preserving rev for resolve of rev
   updating: b 1/3 files (33.33%)
   picked tool 'python ../merge' for b (binary False symlink False)
   merging b and a to b
   my b@02963e448370+ other a@2b958612230f ancestor a@924404dff337
    premerge successful
   updating: c 2/3 files (66.67%)
   getting c
   updating: rev 3/3 files (100.00%)
   picked tool 'python ../merge' for rev (binary False symlink False)
   merging rev
   my rev@02963e448370+ other rev@2b958612230f ancestor rev@924404dff337
   1 files updated, 2 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   --------------
   M b
     a
   M c
   --------------
   
 
   $ cd ..