Govern task context and advance execution pointer

tools/web/generate-collection-fixture.py

@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+import sys
+import bpy
+
+def main(output):
+    bpy.ops.wm.read_factory_settings(use_empty=True)
+    parent = bpy.data.collections.new("WebGapCollection")
+    child = bpy.data.collections.new("WebGapChild")
+    bpy.context.scene.collection.children.link(parent)
+    parent.children.link(child)
+    mesh = bpy.data.meshes.new("WebGapCollectionMesh")
+    mesh.from_pydata([(0, 0, 0), (1, 0, 0), (0, 1, 0)], [], [(0, 1, 2)])
+    object_ = bpy.data.objects.new("WebGapCollectionObject", mesh)
+    child.objects.link(object_)
+    bpy.ops.wm.save_as_mainfile(filepath=output, compress=True)
+
+if __name__ == "__main__":
+    args = sys.argv[sys.argv.index("--") + 1:]
+    if len(args) != 1: raise SystemExit("usage: blender -b --python generate-collection-fixture.py -- OUTPUT")
+    main(args[0])