omego plugin install/upgrade about omego HOT 7 CLOSED

There are several ways of doing this I can think of:

• Register all plugins in config.xml
• Register all plugins in some requirements.txt like file
• Possibly use pip itself: see https://pypi.python.org/pypi/bandersnatch and http://www.python.org/dev/peps/pep-0381/
• Register all plugins in some json-like file

Whatever the solution, it would be nice if these lib/scripts cloned repositories would work similarly.

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Registered clones should also have a "default branch" and a dirty flag check associated with them. On a new install, it might be necessary to copy the files wholesale (if dirty) rather than re-cloning.

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/cc @knabar @sbesson

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+1 installing with pip, although you'd still need some omero cleverness to enable it.

An alternative to registration file is apache/nginx like approach. I.e. directory for plugin-enabling scripts/links/whatever and another directory with symlinks to the former directory for enabled ones that actually get picked up.

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Also, I think it wouldn't be a bad thing if using a virtualenv even in production was the default, much less chance of a screw up. It's a shame you have to use --system-site-packages for Ice, but that's life. Just adding the .pth file to get omero in a virtualenv works really nicely.

That would play nicely into the hands of using pip for plugin management.

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@dpwrussell : @knabar made some minor modifications to OMERO.web recently which will hopefully make this work. Once that's in place, I'd say 👍 as well.

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I opened a PR for the change @joshmoore mentioned: ome/openmicroscopy#1770

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