extdiff: prevent exception on double-translation
The docstring is translated twice: once when used as a format string,
and once on display. The second translation fails when the first
translation introduces non-ASCII characters in the string.
The problem is that the gettext module calls unicode(message) on the
string, i.e., it decodes it to a Unicode string using the ASCII
encoding (the default encoding). By translating it into a Unicode
string here, the unicode() call becomes a noop.
# now tests that it works with trunk/tags layout, but no branches yet
% initial svn import
Adding projB/trunk
Adding projB/tags
Committed revision 1.
% update svn repository
Checked out revision 1.
A letter .txt
Adding letter .txt
Transmitting file data .
Committed revision 2.
Sending letter .txt
Transmitting file data .
Committed revision 3.
Committed revision 4.
Sending letter .txt
Transmitting file data .
Committed revision 5.
% convert to hg once
initializing destination B-hg repository
scanning source...
sorting...
converting...
3 init projB
2 hello
1 world
0 nice day
updating tags
% update svn repository again
A letter2.txt
Sending letter .txt
Adding letter2.txt
Transmitting file data ..
Committed revision 6.
Committed revision 7.
Sending letter2.txt
Transmitting file data .
Committed revision 8.
% test incremental conversion
scanning source...
sorting...
converting...
1 second letter
0 work in progress
updating tags
o 7 update tags files: .hgtags
|
o 6 work in progress files: letter2.txt
|
o 5 second letter files: letter .txt letter2.txt
|
o 4 update tags files: .hgtags
|
o 3 nice day files: letter .txt
|
o 2 world files: letter .txt
|
o 1 hello files: letter .txt
|
o 0 init projB files:
tip
v0.2
v0.1
% test filemap
initializing destination fmap repository
scanning source...
sorting...
converting...
5 init projB
4 hello
3 world
2 nice day
1 second letter
0 work in progress
o 1 work in progress files: letter2.txt
|
o 0 second letter files: letter2.txt
% test stop revision
initializing destination stoprev repository
scanning source...
sorting...
converting...
0 init projB
extra: branch=
extra: convert_revision=