tests/test-tag

py3kcompat: added a "compatibility layer" for py3k

This patch adds some ugly constructs. The first of them is bytesformatter, a
function that formats strings like when '%' is called. The main motivation for
this function is py3k's strange behavior:

>>> 'foo %s' % b'bar'
"foo b'bar'"
>>> b'foo %s' % b'bar'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unsupported operand type(s) for %: 'bytes' and 'bytes'
>>> b'foo %s' % 'bar'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unsupported operand type(s) for %: 'bytes' and 'str'

In other words, if we can't format bytes with bytes, and recall that all
mercurial strings will be converted by a fixer, then things will break badly if
we don't take a similar approach.

The other addition with this patch is that the os.environ dictionary is
monkeypatched to have bytes items. Hopefully this won't be needed in the
future, as python 3.2 might get a os.environb dictionary that holds bytes
items.

#!/bin/sh

hg init test
cd test

echo a > a
hg add a
hg commit -m "test" -d "1000000 0"
hg history

hg tag ' '

hg tag -d "1000000 0" "bleah"
hg history

echo foo >> .hgtags
hg tag -d "1000000 0" "bleah2" || echo "failed"

hg revert .hgtags
hg tag -d "1000000 0" -r 0 x y z y y z || echo "failed"
hg tag -d "1000000 0" tap nada dot tip null . || echo "failed"
hg tag -d "1000000 0" "bleah" || echo "failed"
hg tag -d "1000000 0" "blecch" "bleah" || echo "failed"

hg tag -d "1000000 0" --remove "blecch" || echo "failed"
hg tag -d "1000000 0" --remove "bleah" "blecch" "blough" || echo "failed"

hg tag -d "1000000 0" -r 0 "bleah0"
hg tag -l -d "1000000 0" -r 1 "bleah1"
hg tag -d "1000000 0" gack gawk gorp
hg tag -d "1000000 0" -f gack
hg tag -d "1000000 0" --remove gack gorp

cat .hgtags
cat .hg/localtags

hg update 0
hg tag -d "1000000 0" "foobar"
cat .hgtags
cat .hg/localtags

hg tag -l 'xx
newline'
hg tag -l 'xx:xx'

echo % cloning local tags
cd ..
hg -R test log -r0:5
hg clone -q -rbleah1 test test1
hg -R test1 parents --style=compact
hg clone -q -r5 test#bleah1 test2
hg -R test2 parents --style=compact
hg clone -q -U test#bleah1 test3
hg -R test3 parents --style=compact

cd test
echo % issue 601
python << EOF
f = file('.hg/localtags'); last = f.readlines()[-1][:-1]; f.close()
f = file('.hg/localtags', 'w'); f.write(last); f.close()
EOF
cat .hg/localtags
hg tag -l localnewline
cat .hg/localtags

python << EOF
f = file('.hgtags'); last = f.readlines()[-1][:-1]; f.close()
f = file('.hgtags', 'w'); f.write(last); f.close()
EOF
hg ci -d '1000000 0' -m'broken manual edit of .hgtags'
cat .hgtags
hg tag -d '1000000 0' newline
cat .hgtags

echo % tag and branch using same name
hg branch tag-and-branch-same-name
hg ci -m"discouraged"
hg tag tag-and-branch-same-name

echo '% test custom commit messages'
cat > $HGTMP/editor <<'__EOF__'
#!/bin/sh
echo "custom tag message" > "$1"
echo "second line" >> "$1"
__EOF__
chmod +x "$HGTMP"/editor
HGEDITOR="'$HGTMP'"/editor hg tag custom-tag -e
hg log -l1 --template "{desc}\n"