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FEATURE: Allow plugins to register demon processes (#11493)

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This allows plugins to call `register_demon_process` with a Class inheriting from Demon::Base. The unicorn master process will take care of spawning, monitoring and restarting the process. This API should be used with extreme caution, but it is significantly cleaner than spawning processes/threads in an `after_initialize` block.

This commit also cleans up the demon spawning logging so that it uses the same format as unicorn worker logging. It also switches to the block form of `fork` to ensure that Demons exit after running, rather than returning execution to where the fork took place.
This commit is contained in:
David Taylor
2020-12-16 09:43:39 +00:00
committed by GitHub
parent 38b6b098bc
commit 1d024f77a6
4 changed files with 27 additions and 10 deletions
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lib/discourse_plugin_registry.rb
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@ -68,6 +68,7 @@ class DiscoursePluginRegistry
define_register :vendored_pretty_text, Set
define_register :vendored_core_pretty_text, Set
define_register :seedfu_filter, Set
define_register :demon_processes, Set
define_filtered_register :staff_user_custom_fields
define_filtered_register :public_user_custom_fields