tests/test-merge9

convert: readd --filemap

To handle merges correctly, this revision adds a filemap_source class
that wraps a converter_source and does the work necessary to calculate
the subgraph we're interested in.

The wrapped converter_source must provide a new getchangedfiles method
that, given a revision rev, and an index N, returns the list of files
that are different in rev and its Nth parent.

The implementation depends on the ability to skip some revisions and to
change the parents field of the commit objects that we returned earlier.

To make the conversion restartable, we assume the revisons in the
revmapfile are topologically sorted.

#!/bin/sh

# test that we don't interrupt the merge session if
# a file-level merge failed

hg init repo
cd repo

echo foo > foo
echo a > bar
hg ci -Am 'add foo' -d '0 0'

hg mv foo baz
echo b >> bar
echo quux > quux1
hg ci -Am 'mv foo baz' -d '0 0'

hg up -qC 0
echo >> foo
echo c >> bar
echo quux > quux2
hg ci -Am 'change foo' -d '0 0'

# test with the rename on the remote side
HGMERGE=false hg merge

# test with the rename on the local side
hg up -C 1
HGMERGE=false hg merge

true