apt-get install mercurial

Edit /etc/vhffs/vhffs.conf

<mercurial>
   # Use this module or not
   activate        =       yes

   # URL to the mercurialweb
   mercurialweb_url      =       "http://mercurialweb.domain.com"

   # From: of emails sent by mercurial commit notifier
   notify_from     =       mercurial@domain.com

   # URL to the documentation (optional)
   url_doc         =       http://help.domain.net/mercurial
</mercurial>

Then, activate the bots with a cron file, for example, /etc/cron.d/vhffs

#*/10   *       * * *   root    ionice -c3 nice -n 19 /usr/lib/vhffs/bots/mercurial_create.pl
#*/10   *       * * *   root    ionice -c3 nice -n 19 /usr/lib/vhffs/bots/mercurial_delete.pl
#*/10   *       * * *   root    ionice -c3 nice -n 19 /usr/lib/vhffs/bots/mercurial_public.pl

Create a repository through the panel.

Mercurial using SSH authentication needs full NSS support, please check the local NSS database is filled up with passwd and shadow data.

We recommends you to:

• Create a chroot for mercurial.
• Not install VHFFS in this chroot.
• Fill the NSS database from outside the chroot
• Use a restricted shell service that allows only running the hg binary, you will find in the VHFFS source tree a dummy shell called tuxshell in the /vhffs-shells directory.
• Only mount bind, or nfs mount, or whatever mount, the /data/mercurial directory in the chroot.

HgWeb doesn't require a generated configuration file, so there is no VHFFS bot to create it