tests/test-progress

verify: fix "missing revlog!" errors for revlog format v0 and add test

With revlog format v0 the .d files are empty if the only revision stored is an
empty file. Since Mercurial can no longer create format v0 repositories, but
still use it, add a script which creates a repository with a single empty file.
This can be used in other tests if wanted.

#!/bin/sh

cat > loop.py <<EOF
from mercurial import commands

def loop(ui, loops, **opts):
    loops = int(loops)
    total = None
    if loops >= 0:
        total = loops
    if opts.get('total', None):
        total = int(opts.get('total'))
    loops = abs(loops)

    for i in range(loops):
        ui.progress('loop', i, 'loop.%d' % i, 'loopnum', total)
    ui.progress('loop', None, 'loop.done', 'loopnum', total)

commands.norepo += " loop"

cmdtable = {
    "loop": (loop, [('', 'total', '', 'override for total')],
             'hg loop LOOPS'),
}
EOF

cat > filtercr.py <<EOF
import sys, re
for line in sys.stdin:
    line = re.sub(r'\r+[^\n]', lambda m: '\n' + m.group()[-1:], line)
    sys.stdout.write(line)
EOF

echo "[extensions]" >> $HGRCPATH
echo "progress=" >> $HGRCPATH
echo "loop=`pwd`/loop.py" >> $HGRCPATH
echo "[progress]" >> $HGRCPATH
echo "assume-tty=1" >> $HGRCPATH

echo '% test default params, display nothing because of delay'
hg -y loop 3 2>&1 | python filtercr.py

echo "delay=0" >> $HGRCPATH
echo "refresh=0" >> $HGRCPATH

echo '% test with delay=0, refresh=0'
hg -y loop 3 2>&1 | python filtercr.py

echo '% test refresh is taken in account'
hg -y --config progress.refresh=100 loop 3 2>&1 | python filtercr.py

echo '% test format options 1'
hg -y --config 'progress.format=number topic item+2' loop 2 2>&1 | python filtercr.py

echo '% test format options 2'
hg -y --config 'progress.format=number item-3 bar' loop 2 2>&1 | python filtercr.py

echo '% test format options and indeterminate progress'
hg -y --config 'progress.format=number item bar' loop -- -2 2>&1 | python filtercr.py

echo "% make sure things don't fall over if count > total"
hg -y loop --total 4 6 2>&1 | python filtercr.py

echo '% test immediate progress completion'
hg -y loop 0 2>&1 | python filtercr.py