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
echo "% init repo1"
hg init repo1
cd repo1
echo
echo "% add a; ci"
echo "some text" > a
hg add
hg ci -m first
echo
echo "% cat .hg/store/fncache"
cat .hg/store/fncache
echo
echo "% add a.i/b; ci"
mkdir a.i
echo "some other text" > a.i/b
hg add
hg ci -m second
echo
echo "% cat .hg/store/fncache"
cat .hg/store/fncache
echo
echo "% add a.i.hg/c; ci"
mkdir a.i.hg
echo "yet another text" > a.i.hg/c
hg add
hg ci -m third
echo
echo "% cat .hg/store/fncache"
cat .hg/store/fncache
echo
echo "% hg verify"
hg verify
echo
echo "% rm .hg/store/fncache"
rm .hg/store/fncache
echo
echo "% hg verify"
hg verify
# try non store repo encoding
cd ..
echo % non store repo
hg --config format.usestore=False init foo
cd foo
mkdir tst.d
echo foo > tst.d/foo
hg ci -Amfoo
find .hg | sort
cd ..
echo % non fncache repo
hg --config format.usefncache=False init bar
cd bar
mkdir tst.d
echo foo > tst.d/Foo
hg ci -Amfoo
find .hg | sort
exit 0