Feature #23131
open
Plugin load order defined by inter-plugin dependencies
Added by Felix Schäfer over 8 years ago.
Updated 12 months ago.
Description
Currently plugins requiring another plugin not yet loaded will cause a hard error, forcing plugin authors to somehow name their plugins to have a name that will be sorted after the names of all the other plugins they rely on in the default sort order (alphabetical I'd guess). See source:/tags/3.3.0/lib/redmine/plugin.rb#L236 for the method to require other plugins, which will throw a hard error on line 251 on Plugin.find when the plugin hasn't been loaded yet.
This was something handled in ChiliProject, see https://github.com/chiliproject/chiliproject/commit/a24a24eb1980625fbc4558fc44f15498e883d2d9
Would something like that be of interest to Redmine? We could take care of adapting that patch to current Redmine trunk.
- Is duplicate of Defect #6324: requires_redmine_plugin should defer loading plugins if not all dependencies are met added
- Status changed from New to Closed
- Resolution set to Duplicate
Felix, I think that it would be a good thing if the Redmine core would include some solution for this issue. Please see #6324 (authored by Tim Felgentreff) and specifically the patch by Jean-Baptiste Barth in #6324#note-8.
Kind regards, Mischa.
- Status changed from Closed to Reopened
Thanks, I hadn't seen that one.
This is not the same requirement and solution though, as it is not possible to depend on code in not-yet-loaded plugins with this solution.
Example: Plugin A requires Plugin B and specifically needs lib/b.rb from that plugin to be require-able, which wouldn't work with the solution in #6324.
The referenced ChiliProject commit allows for this. It is a more generic (and in my opinion better) solution to that problem.
Wouldn't a simple topological sort (ruby TSort) in lib/redmine/plugin.rb@self.load do the trick?
Of course provided that we can get information about the dependencies without having to load the plugins first... Chicken/Egg problem.
- Related to Patch #24939: Changing plugin loading order added
- Related to Patch #26439: Plugin load order defined by plugin checks added
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