When working with Mercurial, sometimes you need to access the same repository from multiple hg installations.
For example, currently I’m working on a project on OSX, and need to access the same repo from within a Vagrant environment. In this case, my .hgrc includes
The HistEdit extension is not available by default in the version of hg in Vagrant, so every (scripted) action that uses Mercurial spews something like:
$ hg branch
*** failed to import extension histedit: No module named histedit
One solution is to use a custom hgrc, but an easier solution if you can use it is to use the command line to disable the extension:
$ hg --config extensions.histedit=! branch
In this case, setting the extension path to ! disables it entirely.