refactor: Use apigen to generate cython.

BUILD.bazel

@@ -3,23 +3,23 @@ load("//tools/project:build_defs.bzl", "project")
 
 project(license = "gpl3-https")
 
-genrule(
-    name = "pytox/core",
-    srcs = [
-        "pytox/src/core.pyx",
-        "//c-toxcore:tox/tox.h",
-    ],
-    outs = ["pytox/core.pyx"],
-    cmd = "$(location //py_toxcore_c/tools:gen_api) $(location pytox/src/core.pyx) $(location //c-toxcore:tox/tox.h) > $@",
-    tools = ["//py_toxcore_c/tools:gen_api"],
-)
+#genrule(
+#    name = "pytox/core",
+#    srcs = [
+#        "pytox/src/core.pyx",
+#        "//c-toxcore:tox/tox.h",
+#    ],
+#    outs = ["pytox/core.pyx"],
+#    cmd = "$(location //py_toxcore_c/tools:gen_api) $(location pytox/src/core.pyx) $(location //c-toxcore:tox/tox.h) > $@",
+#    tools = ["//py_toxcore_c/tools:gen_api"],
+#)
 
 pyx_library(
     name = "pytox",
-    srcs = [
-        "pytox/av.pyx",
-        "pytox/core.pyx",
-    ],
+    srcs = glob([
+        "pytox/**/*.pxd",
+        "pytox/**/*.pyx",
+    ]),
     cdeps = ["//c-toxcore"],
     cython_directives = {"language_level": "3"},
     tags = ["no-cross"],

pytox/toxav/toxav.pyx

@@ -0,0 +1,6 @@
+# cython: language_level=3
+
+from pytox.toxcore import tox
+
+def foo() -> str:
+    tox.VERSION