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 issue 746: renaming files brought by the
# second parent of a merge was broken.

echo % create source repository
hg init t
cd t
echo a > a
hg ci -Am a
cd ..

echo % fork source repository
hg clone t t2
cd t2
echo b > b
hg ci -Am b

echo % update source repository
cd ../t
echo a >> a
hg ci -m a2

echo % merge repositories
hg pull ../t2
hg merge

echo % rename b as c
hg mv b c
hg st
echo % rename back c as b
hg mv c b
hg st