Bug: Add a flush cache folder or rmtree in ExecutionContext

[alexbrillant]

class ExecutionContext:
    def mkdir(self):
        """
        Creates the directory to save the last parent step.

        :return:
        """
        path = self.get_path()
        if not os.path.exists(path):
            os.makedirs(path)
 
    def rmtree(self):
          #TODO: shutil.rmtree ??

[guillaume-chevalier]

• Perhaps use this as well in the ForceHandleMixin or something, or in steps that create a temporary context from any unspecified folder when they end their processing.
• Could make use of a random string for the tmp cache folder used in these cases if we are to delete the folder after.
• Thinking about it, the AutoML/HPRepos' contexts create a caching folder instead of cache folder. Might need to merge these? or rename better.

[stale[bot]]

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