tests/test-copy2

use ui buffering in changeset printer

delete old uibuffer class
delete old stringio class
move show to _show
add new show that uses ui.pushbuffer to buffer
add new flush that writes buffered data
add props arg to changeset_printer to match _templater

#!/bin/sh

hg init
echo foo > foo
hg add foo
hg commit -m1 -d"0 0"

echo "# should show copy"
hg copy foo bar
hg debugstate|grep '^copy'

echo "# shouldn't show copy"
hg commit -m2 -d"0 0"
hg debugstate|grep '^copy'

echo "# should match"
hg debugindex .hg/data/foo.i
hg debugrename bar

echo bleah > foo
echo quux > bar
hg commit -m3 -d"0 0"

echo "# should not be renamed"
hg debugrename bar

hg copy -f foo bar
echo "# should show copy"
hg debugstate|grep '^copy'
hg commit -m3 -d"0 0"

echo "# should show no parents for tip"
hg debugindex .hg/data/bar.i
echo "# should match"
hg debugindex .hg/data/foo.i
hg debugrename bar

echo "# should show no copies"
hg debugstate|grep '^copy'

exit 0