encoding: improve handling of buggy getpreferredencoding() on Mac OS X
Prior to version 2.7, calling locale.getpreferredencoding() would
always return 'mac-roman' on Mac OS X. Previously, this was handled by
a call to locale.setlocale(). Unfortunately, Python 2.6.5 and older
have a bug where isspace() would incorrectly report True for 0x85 and
0xa0 after such a call.
In order to fix this, we replace the previous _encodingfixup mapping
to an _encodingfixers mapping. Rather than mapping encodings to their
replacement, it maps them to a function returning the
replacement. This allows us to provide an simplified implementation of
getpreferredencoding() which extracts the expected encoding and
restores the locale.
This fix is based on a patch originally submitted by Martijn Pieters
as well as feedback from Brodie Rao.
#!/bin/sh
"$TESTDIR/hghave" gpg || exit 80
cat <<EOF >> $HGRCPATH
[extensions]
gpg=
[gpg]
cmd=gpg --no-permission-warning --no-secmem-warning --homedir $TESTDIR/gpg
EOF
hg init r
cd r
echo foo > foo
hg ci -Amfoo
echo '% no signatures'
hg sigs
echo '% hg sign 0'
hg sign 0
echo '% hg sigs'
hg sigs
echo '% hg sigcheck 0'
hg sigcheck 0