tests/test-merge10

hgfixes: add a fixer to convert plain strings to bytestrings

This patch implements a 2to3 fixer that converts all plain strings in a python
source file to byte strings syntax. Example:

foo = 'Normal string'

would become

foo = b'Normal string'

The motivation behind this fixer can be found in
http://selenic.com/pipermail/mercurial-devel/2010-June/022363.html or, in other
words: the current hg source assumes that _most_ strings are "meant" to be byte
sequences, so it makes sense to make the convertion implemented by this patch.

As mentioned above, not all mercurial modules want to use strings as bytes,
examples include i18n (which uses unicode), and demandimport (in py3k, module
names are normal strings, thus unicode, and there's no need for a convertion).
Therefore, these modules are blacklisted in the fixer. There are also a few
functions that can take only unicode arguments, thus the convertion shouldn't
be done for those.

#!/bin/sh

# Test for changeset 9fe267f77f56ff127cf7e65dc15dd9de71ce8ceb
# (merge correctly when all the files in a directory are moved
# but then local changes are added in the same directory)

hg init a
cd a
mkdir -p testdir
echo a > testdir/a
hg add testdir/a
hg commit -d '1000000 0' -m a
cd ..

hg clone a b
cd a
echo alpha > testdir/a
hg commit -d '1000000 0' -m remote-change
cd ..

cd b
mkdir testdir/subdir
hg mv testdir/a testdir/subdir/a
hg commit -d '1000000 0' -m move
mkdir newdir
echo beta > newdir/beta
hg add newdir/beta
hg commit -d '1000000 0' -m local-addition
hg pull ../a
hg up -C 2
hg merge
hg stat
hg diff --nodates