Sort collected tasks, dependencies, and products.

docs/changes.rst

@@ -15,6 +15,7 @@ all releases are available on `PyPI <https://pypi.org/project/pytask>`_ and
   system. This facilitates cross-platform builds of projects. Deactivate the check by
   setting ``check_casing_of_paths = false`` in the configuration file.
 - :gh:`84` fixes an error in the path normalization introduced by :gh:`81`.
+- :gh:`85` sorts collected tasks, dependencies, and products by name.
 
 
 0.0.14 - 2021-03-23

src/_pytask/collect_command.py

@@ -109,19 +109,25 @@ def _organize_tasks(tasks, common_ancestor):
 
         task_dict = {
             reduced_task_name: {
-                "depends_on": [
-                    relative_to(node.path, common_ancestor)
-                    for node in task.depends_on.values()
-                ],
-                "produces": [
-                    relative_to(node.path, common_ancestor)
-                    for node in task.produces.values()
-                ],
+                "depends_on": sorted(
+                    [
+                        relative_to(node.path, common_ancestor)
+                        for node in task.depends_on.values()
+                    ]
+                ),
+                "produces": sorted(
+                    [
+                        relative_to(node.path, common_ancestor)
+                        for node in task.produces.values()
+                    ]
+                ),
             }
         }
 
         dictionary[reduced_task_path].update(task_dict)
 
+    dictionary = {key: dictionary[key] for key in sorted(dictionary)}
+
     return dictionary