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https://issues.apache.org/jira/browse/COUCHDB-1046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jan Lehnardt updated COUCHDB-1046:
----------------------------------

    Fix Version/s:     (was: 1.2)
                   1.3

Bump to 1.3.x.
                
> support load of external erlang modules in couchdb. 
> ----------------------------------------------------
>
>                 Key: COUCHDB-1046
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1046
>             Project: CouchDB
>          Issue Type: New Feature
>          Components: Database Core
>            Reporter: Benoit Chesneau
>             Fix For: 1.3
>
>         Attachments: couchdb-plugins-003.patch, couchdb-plugins-004.patch, 
> couchdb-plugins-005.patch, couchdb-plugins-01.patch, couchdb-plugins-02.patch
>
>
> If you want to add external modules in CouchDB and load them , you need to 
> set the ERL_FLAGS environnement variable to the path of a module. 
> The attached patch allows couchdb to load plugins from plugin key in couchdb 
> section. It add needed path to the code path, so the vm can find modules.
> ex:
>    [couchdb]
>    plugins = plugin1, plugin2
>  Each plugin can have its own section where it set the binaries patch, 
> eventually if a service need to be added to the supervision you can set the 
> module and function to load like in daemon section and tel if it's a 
> supervisor or simple service.
> It also allows couchdb to load a plugin service (gen_server or such) to the 
> supervision. You can choose if the service is a simple daemon or a supervisor.
>  ex:
>    [plugin1]
>    code_path = /path/to/plugin1/ebin
>    daemon = {module, function, [Args]}
>    supervisor = false
> Let me know what you think about it. This patch is really useful here and 
> allows me to dynamically load modules I want. Also it eases the integration 
> of external module. For ex I can load my couchapp_ng modules with this lines 
> in local.ini : 
>     [couchdb]
>     plugins = couchapp-ng
>     [couchapp-ng]
>     code_path=/Users/benoitc/work/couchapp_ng/ebin
>     daemon = {couchapp_ng_routes, start_link, []}
>     [httpd_design_handlers]
>     _app = {couchapp_ng_httpd, handle_app_req}
>     [couchapp_ng_handlers]
>     rewrite = {couchapp_ng_handlers, rewrite_handler}
>     proxy = {couchapp_ng_handlers, proxy_handler}
> and can do the same with geocouch etc. Tested here with these modules.

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