veh - tie virtualenvs to mercurial repos
This is a virtualenv dependancy system for mercurial repository.
Store a config file with a list of python dependancies in the repository and then use veh to run a shell with the appropriate venv, etc..
Commands you can use
Installing a veh for the repo:
veh [-R repository-dir] install
puts the venv config file in the repository.
Using -R repository-dir let's you specify a directory, otherwise it's the directory you're in (which must be a mercurial repository).
Editing the config file:
veh [-R repositorydir] edit
starts your VISUAL or EDITOR on the veh config file. Editing operates on a copy of the file.
Running a shell session:
veh [-R repositorydir] shell
starts an interactive subshell with the virtualenv activated.
Alternately you can pass a command to run:
veh [-R repositorydir] shell -- start_server
the start_server command is run inside the virtualenv as if by:
bash -c 'start_server'
When the command exits, the virtualenv shell will be destroyed.
Clearing the virtualenv:
veh [-R repositorydir] clear
just does an rm -rf on the virtualenv.
Rebuilding also clears but immediately rebuilds:
veh [-R repositorydir] rebuild
Refresh just tries to re-get each package, without the initial trashing of the virtualenv:
veh [-R repositorydir] refresh
This is useful for adding packages.
You can also list the packages that are declred in the config file:
veh [-R repositorydir] lspackages
veh is limited to bash as a shell right now. This is because veh needs to write a shell startup file which pulls in the user's startup and the virtualenv startup and the only shell for which I've coded this support is bash.
I'm pretty sure other shells could be added or some other mechanism for starting the virtualenv in a spawned subshell found.