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
. $TESTDIR/helpers.sh
echo "[extensions]" >> $HGRCPATH
echo "mq=" >> $HGRCPATH
teststrip() {
hg up -C $1
echo % before update $1, strip $2
hg parents
hg strip $2 | hidebackup
echo % after update $1, strip $2
hg parents
hg unbundle -q .hg/strip-backup/*
rm .hg/strip-backup/*
}
hg init test
cd test
echo foo > bar
hg ci -Ama
echo more >> bar
hg ci -Amb
echo blah >> bar
hg ci -Amc
hg up 1
echo blah >> bar
hg ci -Amd
echo final >> bar
hg ci -Ame
hg log
teststrip 4 4
teststrip 4 3
teststrip 1 4
teststrip 4 2
teststrip 4 1
teststrip null 4
hg log
hg up -C 2
hg merge 4
echo % before strip of merge parent
hg parents
hg strip 4 2>&1 | hidebackup
echo % after strip of merge parent
hg parents
#strip of applied mq should cleanup status file
hg up -C 3
echo fooagain >> bar
hg ci -mf
hg qimport -r tip:2
echo % applied patches before strip
hg qapplied
echo % stripping revision in queue
hg strip 3 | hidebackup
echo % applied patches after stripping rev in queue
hg qapplied
echo % stripping ancestor of queue
hg strip 1 | hidebackup
echo % applied patches after stripping ancestor of queue
hg qapplied