Implicit logger

[mottosso]

Goal

Eliminate the need for @pyblish.api.log.

Currently, a logger is implicitly included in every plug-in, as per it's superclass. But what the superclass can't know is the name of your plug-in. The name is present in every log record, and in the vast landscape of hundreds or thousands of records it can be helpful to be able to distinguish between where a particular record originated from.

For example, this plug-in.

import pyblish.api

class MyPlugin(pyblish.api.Plugin):
    def process(self):
        self.log.info("Hello world")

Outputs..

# pyblish.pyblish.plugin.Plugin : Hello world # 

When you decorate your class with a logger, the decoration mechanism look up the name of your plug-in at run-time and append it to its records.

import pyblish.api

@pyblish.api.log
class MyPlugin(pyblish.api.Plugin):
    def process(self):
        self.log.info("Hello world")

# pyblish.__main__.MyPlugin: Hello world #

Implementation

Apply a logger in a similar fashion, instead relying on meta-programming, similar to how plug-ins are currently evaluated to be pre-1.1 (i.e. using process_instance in favour of just process).

The logger will be applied implicitly, along with the name given when subclassing, eliminating the need to manually decorate any classes.