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
# This emulates the effects of an hg pull --rebase in which the remote repo
# already has one local mq patch
. $TESTDIR/helpers.sh
echo "[extensions]" >> $HGRCPATH
echo "graphlog=" >> $HGRCPATH
echo "rebase=" >> $HGRCPATH
echo "mq=" >> $HGRCPATH
hg init a
cd a
hg qinit -c # This must work even with a managed mq queue
echo 'c1' > c1
hg add c1
hg commit -d '0 0' -m "C1"
echo 'r1' > r1
hg add r1
hg commit -d '1 0' -m "R1"
hg up 0
hg qnew p0.patch
echo 'p0' > p0
hg add p0
hg qref -m 'P0'
hg qnew p1.patch
echo 'p1' > p1
hg add p1
hg qref -m 'P1'
hg export qtip > p1.patch
echo
echo '% "Mainstream" import p1.patch'
hg up -C 1
hg import p1.patch
rm p1.patch
echo
echo '% Rebase'
hg up -C qtip
hg rebase | hidebackup
hg glog --template '{rev} {desc} tags: {tags}\n'