tests/test-rebase-rename.out

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.

adding a
adding b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
created new head

% Rename is tracked
2:rename A
diff --git a/a b/a-renamed
rename from a
rename to a-renamed

% Rebase the revision containing the rename

% Rename is not lost
2:rename A
diff --git a/a b/a-renamed
rename from a
rename to a-renamed

adding a
adding b
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
created new head

% Copy is tracked
2:copy A
diff --git a/a b/a-copied
copy from a
copy to a-copied

% Rebase the revision containing the copy

% Copy is not lost
2:copy A
diff --git a/a b/a-copied
copy from a
copy to a-copied