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
# test stripping of filelogs where the linkrev doesn't always increase
. $TESTDIR/helpers.sh
echo '[extensions]' >> $HGRCPATH
echo 'hgext.mq =' >> $HGRCPATH
hg init orig
cd orig
commit()
{
hg up -qC null
count=1
for i in "$@"; do
for f in $i; do
echo $count > $f
done
count=`expr $count + 1`
done
hg commit -qAm "$*"
}
# 2 1 0 2 0 1 2
commit '201 210'
commit '102 120' '210'
commit '021'
commit '201' '021 120'
commit '012 021' '102 201' '120 210'
commit 'manifest-file'
commit '102 120' '012 210' '021 201'
commit '201 210' '021 120' '012 102'
HGUSER=another-user; export HGUSER
commit 'manifest-file'
commit '012' 'manifest-file'
cd ..
hg clone -q -U -r -1 -r -2 -r -3 -r -4 -r -6 orig crossed
for i in crossed/.hg/store/00manifest.i crossed/.hg/store/data/*.i; do
echo $i
hg debugindex $i
echo
done
for i in 0 1 2 3 4; do
hg clone -q -U --pull crossed $i
echo "% Trying to strip revision $i"
hg --cwd $i strip $i | hidebackup
echo "% Verifying"
hg --cwd $i verify
echo
done