[Lang] Remove filename kwarg in aot Module save() (taichi-dev#7085)

Issue: #

### Brief Summary

.github/workflows/scripts/aot-demo.sh

@@ -4,7 +4,8 @@ set -ex
 export TI_SKIP_VERSION_CHECK=ON
 export TI_CI=1
 
-export TAICHI_AOT_DEMO_URL=https://github.com/bobcao3/taichi-aot-demo
+# IF YOU PIN THIS TO A COMMIT/BRANCH, YOU'RE RESPONSIBLE TO REVERT IT BACK TO MASTER ONCE MERGED.
+export TAICHI_AOT_DEMO_URL=https://github.com/taichi-dev/taichi-aot-demo
 export TAICHI_AOT_DEMO_BRANCH=master
 
 export TAICHI_UNITY2_URL=https://github.com/taichi-dev/taichi-unity2
@@ -27,7 +28,6 @@ function build-and-smoke-test-android-aot-demo {
     export TAICHI_REPO_DIR=$(pwd)/taichi
 
     rm -rf taichi-aot-demo
-    # IF YOU PIN THIS TO A COMMIT/BRANCH, YOU'RE RESPONSIBLE TO REVERT IT BACK TO MASTER ONCE MERGED.
     git clone --recursive --depth=1 -b "$TAICHI_AOT_DEMO_BRANCH" "$TAICHI_AOT_DEMO_URL"
 
     # Install taichi-python

python/taichi/aot/module.py

@@ -208,16 +208,11 @@ def add_kernel_template(self, kernel_fn):
         kt = KernelTemplate(kernel_fn, self)
         yield kt
 
-    def save(self, filepath, filename=None):
+    def save(self, filepath):
         """
         Args:
           filepath (str): path to a folder to store aot files.
-          filename (str): filename prefix for stored aot files.
         """
-        if filename is not None:
-            warnings.warn(
-                "Specifying filename is no-op and will be removed in release v1.4.0",
-                DeprecationWarning)
         filepath = str(PurePosixPath(Path(filepath)))
         self._aot_builder.dump(filepath, "")
         with open(f"{filepath}/__content__", "w") as f:
@@ -238,7 +233,7 @@ def archive(self, filepath: str):
 
         temp_dir = mkdtemp(prefix="tcm_")
         # Save first as usual.
-        self.save(temp_dir, "")
+        self.save(temp_dir)
 
         # Package all artifacts into a zip archive and attach contend data.
         with ZipFile(tcm_path, "w") as z:

tests/cpp/aot/python_scripts/bitmasked_aot_test.py

@@ -69,7 +69,7 @@ def check_value_1():
 
     m.add_field("x", x)
 
-    m.save(dir_name, 'whatever')
+    m.save(dir_name)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/comet_aot.py

@@ -155,7 +155,7 @@ def save_kernels(arch):
     assert "TAICHI_AOT_FOLDER_PATH" in os.environ.keys()
     tmpdir = str(os.environ["TAICHI_AOT_FOLDER_PATH"])
 
-    mod.save(tmpdir, 'whatever')
+    mod.save(tmpdir)
 
 
 if __name__ == '__main__':

tests/cpp/aot/python_scripts/dense_field_aot_test.py

@@ -38,7 +38,7 @@ def ret() -> ti.f32:
     m.add_kernel(init)
     m.add_kernel(ret)
     m.add_field("place", place)
-    m.save(dir_name, 'whatever')
+    m.save(dir_name)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/dynamic_aot_test.py

@@ -71,7 +71,7 @@ def check_value_1():
     assert "TAICHI_AOT_FOLDER_PATH" in os.environ.keys()
     tmpdir = str(os.environ["TAICHI_AOT_FOLDER_PATH"])
 
-    m.save(tmpdir, 'whatever')
+    m.save(tmpdir)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/field_aot_test.py

@@ -110,7 +110,7 @@ def check_activate_pointer_fields():
         m.add_field("y", y)
 
         m.add_graph('run_graph', run_graph)
-        m.save(dir_name, '')
+        m.save(dir_name)
     else:
         m = ti.aot.Module()
 
@@ -127,7 +127,7 @@ def check_activate_pointer_fields():
         m.add_field("x", x)
         m.add_field("y", y)
 
-        m.save(dir_name, 'whatever')
+        m.save(dir_name)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/graph_aot_test.py

@@ -50,7 +50,7 @@ def run2(base: int, arr: ti.types.ndarray(ndim=1, dtype=ti.i32)):
 
     mod = ti.aot.Module()
     mod.add_graph('run_graph', run_graph)
-    mod.save(tmpdir, '')
+    mod.save(tmpdir)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/kernel_aot_test1.py

@@ -22,7 +22,7 @@ def run(base: int, arr: ti.types.ndarray(), v: ti.types.vector(3, ti.i32)):
 
     m = ti.aot.Module()
     m.add_kernel(run, template_args={'arr': arr})
-    m.save(dir_name, 'whatever')
+    m.save(dir_name)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/kernel_aot_test2.py

@@ -39,7 +39,7 @@ def ker2(arr: ti.types.ndarray(), n: ti.i32):
         arr = ti.ndarray(ti.i32, shape=(10, ))
         m.add_kernel(ker1, template_args={'arr': arr})
         m.add_kernel(ker2, template_args={'arr': arr})
-    m.save(dir_name, 'whatever')
+    m.save(dir_name)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/mpm88_graph_aot.py

@@ -184,7 +184,7 @@ def init_particles(x: ti.any_arr(field_dim=1), v: ti.any_arr(field_dim=1),
         mod = ti.aot.Module()
         mod.add_graph('init', g_init)
         mod.add_graph('update', g_update)
-        mod.save(tmpdir, '')
+        mod.save(tmpdir)
     else:
         pos = ti.Vector.ndarray(3, ti.f32, n_particles)
         x = ti.Vector.ndarray(2, ti.f32, shape=(n_particles))
@@ -226,7 +226,7 @@ def init_particles(x: ti.any_arr(field_dim=1), v: ti.any_arr(field_dim=1),
                            'pos': pos
                        })
 
-        mod.save(tmpdir, '')
+        mod.save(tmpdir)
 
 
 if __name__ == "__main__":

tests/cpp/aot/python_scripts/sph_aot.py

@@ -243,4 +243,4 @@ def copy_data_from_ndarray_to_field(src: ti.template(), dst: ti.any_arr()):
     assert "TAICHI_AOT_FOLDER_PATH" in os.environ.keys()
     tmpdir = str(os.environ["TAICHI_AOT_FOLDER_PATH"])
 
-    mod.save(tmpdir, '')
+    mod.save(tmpdir)

tests/cpp/aot/python_scripts/taichi_sparse_test.py

@@ -86,7 +86,7 @@ def save_kernels(arch):
     assert "TAICHI_AOT_FOLDER_PATH" in os.environ.keys()
     dir_name = str(os.environ["TAICHI_AOT_FOLDER_PATH"])
 
-    m.save(dir_name, 'whatever')
+    m.save(dir_name)
 
 
 if __name__ == '__main__':

tests/cpp/aot/python_scripts/texture_aot_test.py

@@ -74,7 +74,7 @@ def run2(tex0: ti.types.texture(num_dimensions=2),
 
     mod = ti.aot.Module()
     mod.add_graph('run_graph', run_graph)
-    mod.save(tmpdir, '')
+    mod.save(tmpdir)
 
 
 if __name__ == "__main__":

tests/python/test_aot.py

@@ -518,7 +518,7 @@ def run(arr: ti.types.ndarray(), val1: ti.f32, val2: ti.template()):
         x = ti.ndarray(dtype=ti.f32, shape=16)
         m = ti.aot.Module()
         m.add_kernel(run, template_args={'arr': x, 'val2': 42})
-        m.save(tmpdir, '')
+        m.save(tmpdir)
         with open(os.path.join(tmpdir, 'metadata.json')) as json_file:
             res = json.load(json_file)
             for kernel in res['kernels']:

tests/python/test_deprecation.py

@@ -7,21 +7,6 @@
 from tests import test_utils
 
 
-@test_utils.test(arch=[ti.vulkan, ti.opengl, ti.cuda, ti.cpu])
-def test_deprecated_aot_save_filename():
-    density = ti.field(float, shape=(4, 4))
-
-    with tempfile.TemporaryDirectory() as tmpdir:
-        m = ti.aot.Module()
-        m.add_field('density', density)
-        with pytest.warns(
-                DeprecationWarning,
-                match=
-                r'Specifying filename is no-op and will be removed in release v1.4.0'
-        ):
-            m.save(tmpdir, 'filename')
-
-
 @test_utils.test()
 def test_deprecated_matrix_rotation2d():
     with pytest.warns(
@@ -132,6 +117,7 @@ def ker(tex: ti.types.rw_texture(num_dimensions=2,
                 tex.store(ti.Vector([i, j]), ti.Vector([ret, 0.0, 0.0, 0.0]))
 
 
+# Note: will be removed in v1.5.0
 @test_utils.test(arch=ti.vulkan)
 def test_incomplete_info_rwtexture():
     n = 128