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https://issues.apache.org/jira/browse/COUCHDB-1046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987771#action_12987771
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Benoit Chesneau commented on COUCHDB-1046:
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about plugin deps, rabbit mq, put all deps in the plugin repo. Do we really
want that ?
That means that a plugin using emonk, for ex, will have to first install emonk
in this repo. On the other hand if we keep current possibility of this patch to
load from deps folder I can just use rebar to build and get-deps.
> 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: 1.2
>
> Attachments: couchdb-plugins-003.patch, couchdb-plugins-004.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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