Installation

First you need to install Mecurial, Meld and TortoiseHg and it dependencies using apt.

sudo apt-get install mercurial meld tortoisehg

Once installed you will also need to install python iniparse to change the TortoiseHg settings.

Download the deb file here http://code.google.com/p/iniparse/downloads/list and install it.

sudo gdebi python-iniparse_0.3.1-1_all.deb

Setup

Once the above is installed you need to activate the extdiff extension to be able to use meld as your visual diff tool.

To do so add the following to your ~/.hgrc file.

[ui]
merge = meld

[tortoisehg]
vdiff = meld

[extensions]
hgext.extdiff =

[extdiff]
cmd.meld =