Patches for the Mercurial plugin welcome. There are several implementations in hudson.plugins.mercurial.browser and it is not hard to write another.

JENKINS-7905 needs to be done to integrate with bazaar plugin.

Patch to add OpenGrok as RepositoryBrowser with Bazaar.
Depends on patch from JENKINS-7905.

Given that OpenGrok is SCM agnostic, perhaps it's better to be its own plugin?

I believe Hudson supports the notion of SCM-agnostic repository browser, but this might be the first real such case. Please let me know if you discover any problems in the abstraction, so that we can fix them.

The CVS Plugin now supports OpenGrok repository browser

Code changed in jenkins
User: mc1arke
Path:
src/main/java/hudson/scm/browsers/OpenGrok.java
src/main/resources/hudson/scm/browsers/OpenGrok/config.jelly
src/main/resources/hudson/scm/browsers/OpenGrok/help-url.html
http://jenkins-ci.org/commit/cvs-plugin/1a2df157319ae4e95fcf56746a36fe907c85818d
Log:
JENKINS-7044 Add OpenGrok repository browser to CVS plugin

Will this issue cover adding the same for the Perforce plugin, or should a separate item be opened for that?

@netappbluedevil better to open a separate RFE for the Perforce plugin. In fact for clarity I am just limiting this to the CVS plugin and closing. Anyone who still needs OpenGrok support for other SCMs should file an issue in the relevant component (ideally filing a pull request).

How about subversion ? It has a lot more source code viewers but OpenGrok is missing.
The repository browser should be independent of the source control management tool (CVS, SVN, Git, ...).