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 > $HGRCPATH <<EOF
[diff]
git = True
[extensions]
eol =
[eol]
native = CRLF
EOF
echo "% setup repository"
hg init repo
cd repo
cat > .hgeol <<EOF
[patterns]
**.txt = native
EOF
printf "first\r\nsecond\r\nthird\r\n" > a.txt
hg commit --addremove -m 'checkin'
cd ..
echo "% hg clone repo repo-2"
hg clone repo repo-2
cd repo-2
echo '% printrepr.py a.txt'
python $TESTDIR/printrepr.py < a.txt
echo '% hg cat a.txt'
hg cat a.txt | python $TESTDIR/printrepr.py
hg remove .hgeol
hg commit -m 'remove eol'
hg push --quiet
cd ..
# Test clone of repo with .hgeol in working dir, but no .hgeol in tip
echo "% hg clone repo repo-3"
hg clone repo repo-3
cd repo-3
echo '% printrepr.py a.txt'
python $TESTDIR/printrepr.py < a.txt
cd ..
# Test clone of revision with .hgeol
echo "% hg clone -r 1 repo repo-4"
hg clone -r 0 repo repo-4
cd repo-4
echo '% cat .hgeol'
cat .hgeol
echo '% printrepr.py a.txt'
python $TESTDIR/printrepr.py < a.txt
cd ..