Enable rich's auto-refresh for live displays. (#139)

Author: tobiasraabe

docs/source/changes.rst

@@ -7,11 +7,13 @@ all releases are available on `PyPI <https://pypi.org/project/pytask>`_ and
 `Anaconda.org <https://anaconda.org/conda-forge/pytask>`_.
 
 
-0.1.1 - 2021-xx-xx
+0.1.1 - 2021-08-25
 ------------------
 
 - :gh:`138` changes the default verbosity to ``1`` which displays the live table during
   execution and ``0`` display the symbols for outcomes (e.g. ``.``, ``F``, ``s``).
+- :gh:`139` enables rich's auto-refresh mechanism for live objects which causes almost
+  no performance penalty for the live table compared to the symbolic output.
 
 
 0.1.0 - 2021-07-20

src/_pytask/live.py

@@ -33,7 +33,7 @@ class LiveManager:
 
     """
 
-    _live = Live(renderable=None, console=console, auto_refresh=False)
+    _live = Live(renderable=None, console=console, auto_refresh=True)
 
     def start(self):
         self._live.start()
@@ -56,9 +56,6 @@ def resume(self):
     def update(self, *args, **kwargs):
         self._live.update(*args, **kwargs)
 
-    def refresh(self):
-        self._live.refresh()
-
     @property
     def is_started(self):
         return self._live.is_started
@@ -105,7 +102,6 @@ def _generate_table(self):
     def _update_table(self):
         table = self._generate_table()
         self._live_manager.update(table)
-        self._live_manager.refresh()
 
     def update_running_tasks(self, new_running_task):
         reduced_task_name = reduce_node_name(new_running_task, self._paths)
@@ -160,7 +156,6 @@ def _update_statistics(self, reports):
     def _update_status(self):
         status = self._generate_status()
         self._live_manager.update(status)
-        self._live_manager.refresh()
 
     def _generate_status(self):
         msg = f"Collected {self._n_collected_tasks} tasks."