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 foo
% test qpush on empty series
no patches in series
popping bad-patch
popping patch2
popping patch1
patch queue now empty
applying patch1
applying patch2
applying bad-patch
transaction abort!
rollback completed
cleaning up working directory...done
abort: decoding near 'é': 'ascii' codec can't decode byte 0xe9 in position 0: ordinal not in range(128)!
changeset: 0:bbd179dfa0a7
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add foo
% bar should be gone; other unknown/ignored files should still be around
? untracked-file
I .hgignore
C foo
% preparing qpush of a missing patch
no patches applied
applying patch1
now at: patch1
% now we expect the push to fail, but it should NOT complain about patch1
applying patch2
unable to read patch2
now at: patch1
% preparing qpush of missing patch with no patch applied
popping patch1
patch queue now empty
% qpush should fail the same way as below
applying patch1
unable to read patch1