[8.x] support action_level configuration #40305
Merged
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Adding an action_level configuration option for log channels. When the action_level configuration is used the chosen handler by the developer will be wrapped in a Fingerscrossed handler.
The Fingerscrossed handler will buffer all log records that are at or above the provided level configuration. Only when a log record is provided at or above the action_level all the buffered records will be flushed to the log itself.
This methodology can be usefull for a developer to gather debug information about a process while only logging that debug information if the code actually hits a critical error.
An example of the usage of the action_level configuration can be found in the Symfony documentation about logging using Monolog.