tests/test-hgwebdirsym

replace usage of os.popen() with util.popen()

To make this possible, I added a mode parameter to both implementations of
util.popen(), defaulting to 'r' (as it does in the Python stdlib).

#!/bin/sh
# Tests whether or not hgwebdir properly handles various symlink topologies.

"$TESTDIR/hghave" symlink || exit 80

hg init a
echo a > a/a
hg --cwd a ci -Ama -d'1 0'

mkdir webdir
cd webdir

hg init b
echo b > b/b
hg --cwd b ci -Amb -d'2 0'

hg init c
echo c > c/c
hg --cwd c ci -Amc -d'3 0'

ln -s ../a al
ln -s ../webdir circle

root=`pwd`

cd ..

cat > collections.conf <<EOF
[collections]
$root=$root
EOF

hg serve -p $HGPORT -d --pid-file=hg.pid --webdir-conf collections.conf \
    -A access-collections.log -E error-collections.log
cat hg.pid >> $DAEMON_PIDS

echo % should succeed
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/?style=raw'
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/al/file/tip/a?style=raw'
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/b/file/tip/b?style=raw'
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/c/file/tip/c?style=raw'

echo % should fail
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/circle/al/file/tip/a?style=raw'
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/circle/b/file/tip/a?style=raw'
"$TESTDIR/get-with-headers.py" localhost:$HGPORT '/circle/c/file/tip/a?style=raw'

echo % collections errors
cat error-collections.log