Fix #31238: use vendoring for our vendoring

This is https://github.com/pradyunsg/vendoring

tools/localpaths.py

@@ -6,31 +6,7 @@
 
 sys.path.insert(0, os.path.join(here))
 sys.path.insert(0, os.path.join(here, "wptserve"))
-sys.path.insert(0, os.path.join(here, "third_party", "pywebsocket3"))
-sys.path.insert(0, os.path.join(here, "third_party", "atomicwrites"))
-sys.path.insert(0, os.path.join(here, "third_party", "attrs", "src"))
-sys.path.insert(0, os.path.join(here, "third_party", "funcsigs"))
-sys.path.insert(0, os.path.join(here, "third_party", "html5lib"))
-sys.path.insert(0, os.path.join(here, "third_party", "zipp"))
-sys.path.insert(0, os.path.join(here, "third_party", "more-itertools"))
-sys.path.insert(0, os.path.join(here, "third_party", "packaging"))
-sys.path.insert(0, os.path.join(here, "third_party", "pathlib2"))
-sys.path.insert(0, os.path.join(here, "third_party", "pluggy", "src"))
-sys.path.insert(0, os.path.join(here, "third_party", "py"))
-sys.path.insert(0, os.path.join(here, "third_party", "pytest"))
-sys.path.insert(0, os.path.join(here, "third_party", "pytest", "src"))
-sys.path.insert(0, os.path.join(here, "third_party", "pytest-asyncio"))
-sys.path.insert(0, os.path.join(here, "third_party", "six"))
-sys.path.insert(0, os.path.join(here, "third_party", "webencodings"))
-sys.path.insert(0, os.path.join(here, "third_party", "h2"))
-sys.path.insert(0, os.path.join(here, "third_party", "hpack"))
-sys.path.insert(0, os.path.join(here, "third_party", "hyperframe"))
-sys.path.insert(0, os.path.join(here, "third_party", "certifi"))
-sys.path.insert(0, os.path.join(here, "third_party", "hyper"))
-sys.path.insert(0, os.path.join(here, "third_party", "websockets", "src"))
-sys.path.insert(0, os.path.join(here, "third_party", "iniconfig", "src"))
-if sys.version_info < (3, 8):
-    sys.path.insert(0, os.path.join(here, "third_party", "importlib_metadata"))
+sys.path.insert(0, os.path.join(here, "third_party"))
 sys.path.insert(0, os.path.join(here, "webdriver"))
 sys.path.insert(0, os.path.join(here, "wptrunner"))
 sys.path.insert(0, os.path.join(here, "webtransport"))

tools/pyproject.toml

@@ -0,0 +1,12 @@
+[tool.vendoring]
+destination = "third_party/"
+requirements = "requirements_vendor.txt"
+namespace = "third_party"
+patches-dir = "third_party_patches"
+
+[tool.vendoring.license.fallback-urls]
+funcsigs = "https://github.com/aliles/funcsigs/raw/master/LICENSE"
+hyperframe = "https://github.com/python-hyper/hyperframe/raw/master/LICENSE"
+hpack = "https://github.com/python-hyper/hpack/raw/master/LICENSE"
+h2 = "https://github.com/python-hyper/h2/raw/master/LICENSE"
+webencodings = "https://github.com/gsnedders/python-webencodings/raw/master/LICENSE"

tools/requirements_vendor.txt

@@ -0,0 +1,26 @@
+atomicwrites==1.4.0
+attrs==21.2.0
+certifi==2021.10.8
+funcsigs==1.0.2
+h2==2.6.2
+hpack==3.0.0
+html5lib==1.1
+hyper==0.7.0
+hyperframe==3.2.0
+importlib-metadata==4.8.1
+iniconfig==1.1.1
+mod-pywebsocket @ git+https://github.com/GoogleChromeLabs/pywebsocket3.git@50602a14f1b6da17e0b619833a13addc6ea78bc2
+more-itertools==8.10.0
+packaging==21.0
+pathlib2==2.3.6
+pluggy==1.0.0
+py==1.10.0
+pyparsing==3.0.0
+pytest==6.2.5
+pytest-asyncio==0.16.0
+six==1.16.0
+toml==0.10.2
+typing-extensions==3.10.0.2
+webencodings==0.5.1
+websockets==9.1
+zipp==3.6.0

tools/third_party/pytest/src/_pytest/_argcomplete.py → tools/third_party/_pytest/_argcomplete.py

@@ -26,7 +26,7 @@
 uses a python program to determine startup script generated by pip.
 You can speed up completion somewhat by changing this script to include
   # PYTHON_ARGCOMPLETE_OK
-so the the python-argcomplete-check-easy-install-script does not
+so the python-argcomplete-check-easy-install-script does not
 need to be called to find the entry point of the code and see if that is
 marked  with PYTHON_ARGCOMPLETE_OK.
 
@@ -103,7 +103,7 @@ def __call__(self, prefix: str, **kwargs: Any) -> List[str]:
         import argcomplete.completers
     except ImportError:
         sys.exit(-1)
-    filescompleter = FastFilesCompleter()  # type: Optional[FastFilesCompleter]
+    filescompleter: Optional[FastFilesCompleter] = FastFilesCompleter()
 
     def try_argcomplete(parser: argparse.ArgumentParser) -> None:
         argcomplete.autocomplete(parser, always_complete_options=False)