How to use p4merge as the merge/diff tool for Mercurial?

Question

Does anyone know how to setup Mercurial to use p4merge as the merge/diff tool on OS X 10.5?

Answer 1

Maybe because I'm working on Windows, but the proposed solution didn't work for me. Instead, the following does work.

In your ~/.hgrc/ / Mercurial.ini, I applied the following changes:

Enabled "ExtDiff" extension:

[extensions]
hgext.extdiff =

Added P4 extdiff command:

[extdiff]
cmd.p4diff = p4merge

Configured it as the default visual diff tool:

[tortoisehg]
vdiff = p4diff