Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/testing/web-platform/tests/tools/wpt/virtualenv.py b/testing/web-platform/tests/tools/wpt/virtualenv.py
new file mode 100644
index 0000000000..f1fad73270
--- /dev/null
+++ b/testing/web-platform/tests/tools/wpt/virtualenv.py
@@ -0,0 +1,174 @@
+# mypy: allow-untyped-defs
+
+import logging
+import os
+import shutil
+import site
+import sys
+import sysconfig
+from pathlib import Path
+from shutil import which
+
+# The `pkg_resources` module is provided by `setuptools`, which is itself a
+# dependency of `virtualenv`. Tolerate its absence so that this module may be
+# evaluated when that module is not available. Because users may not recognize
+# the `pkg_resources` module by name, raise a more descriptive error if it is
+# referenced during execution.
+try:
+    import pkg_resources as _pkg_resources
+    get_pkg_resources = lambda: _pkg_resources
+except ImportError:
+    def get_pkg_resources():
+        raise ValueError("The Python module `virtualenv` is not installed.")
+
+from tools.wpt.utils import call
+
+logger = logging.getLogger(__name__)
+
+class Virtualenv:
+    def __init__(self, path, skip_virtualenv_setup):
+        self.path = path
+        self.skip_virtualenv_setup = skip_virtualenv_setup
+        if not skip_virtualenv_setup:
+            self.virtualenv = [sys.executable, "-m", "venv"]
+            self._working_set = None
+
+    @property
+    def exists(self):
+        # We need to check also for lib_path because different python versions
+        # create different library paths.
+        return os.path.isdir(self.path) and os.path.isdir(self.lib_path)
+
+    @property
+    def broken_link(self):
+        python_link = os.path.join(self.path, ".Python")
+        return os.path.lexists(python_link) and not os.path.exists(python_link)
+
+    def create(self):
+        if os.path.exists(self.path):
+            shutil.rmtree(self.path, ignore_errors=True)
+            self._working_set = None
+        call(*self.virtualenv, self.path)
+
+    @property
+    def bin_path(self):
+        if sys.platform in ("win32", "cygwin"):
+            return os.path.join(self.path, "Scripts")
+        return os.path.join(self.path, "bin")
+
+    @property
+    def pip_path(self):
+        path = which("pip3", path=self.bin_path)
+        if path is None:
+            path = which("pip", path=self.bin_path)
+        if path is None:
+            raise ValueError("pip3 or pip not found")
+        return path
+
+    @property
+    def lib_path(self):
+        base = self.path
+
+        # this block is literally taken from virtualenv 16.4.3
+        IS_PYPY = hasattr(sys, "pypy_version_info")
+        IS_JYTHON = sys.platform.startswith("java")
+        if IS_JYTHON:
+            site_packages = os.path.join(base, "Lib", "site-packages")
+        elif IS_PYPY:
+            site_packages = os.path.join(base, "site-packages")
+        else:
+            IS_WIN = sys.platform == "win32"
+            if IS_WIN:
+                site_packages = os.path.join(base, "Lib", "site-packages")
+            else:
+                version = f"{sys.version_info.major}.{sys.version_info.minor}"
+                site_packages = os.path.join(base, "lib", f"python{version}", "site-packages")
+
+        return site_packages
+
+    @property
+    def working_set(self):
+        if not self.exists:
+            raise ValueError("trying to read working_set when venv doesn't exist")
+
+        if self._working_set is None:
+            self._working_set = get_pkg_resources().WorkingSet((self.lib_path,))
+
+        return self._working_set
+
+    def activate(self):
+        if sys.platform == 'darwin':
+            # The default Python on macOS sets a __PYVENV_LAUNCHER__ environment
+            # variable which affects invocation of python (e.g. via pip) in a
+            # virtualenv. Unset it if present to avoid this. More background:
+            # https://github.com/web-platform-tests/wpt/issues/27377
+            # https://github.com/python/cpython/pull/9516
+            os.environ.pop('__PYVENV_LAUNCHER__', None)
+
+        # Setup the path and site packages as if we'd launched with the virtualenv active
+        bin_dir = os.path.join(self.path, "bin")
+        os.environ["PATH"] = os.pathsep.join([bin_dir] + os.environ.get("PATH", "").split(os.pathsep))
+        os.environ["VIRTUAL_ENV"] = self.path
+
+        prev_length = len(sys.path)
+
+        schemes = sysconfig.get_scheme_names()
+        if "venv" in schemes:
+            scheme = "venv"
+        else:
+            scheme = "nt" if os.name == "nt" else "posix_user"
+        sys_paths = sysconfig.get_paths(scheme)
+        data_path = sys_paths["data"]
+        added = set()
+        # Add the venv library paths as sitedirs.
+        # This converts system paths like /usr/local/lib/python3.10/site-packages
+        # to venv-relative paths like {self.path}/lib/python3.10/site-packages and adds
+        # those paths as site dirs to be used for module import.
+        for key in ["purelib", "platlib"]:
+            host_path = Path(sys_paths[key])
+            relative_path = host_path.relative_to(data_path)
+            site_dir = os.path.normpath(os.path.normcase(Path(self.path) / relative_path))
+            if site_dir not in added:
+                site.addsitedir(site_dir)
+                added.add(site_dir)
+        sys.path[:] = sys.path[prev_length:] + sys.path[0:prev_length]
+
+        sys.real_prefix = sys.prefix
+        sys.prefix = self.path
+
+    def start(self):
+        if not self.exists or self.broken_link:
+            self.create()
+        self.activate()
+
+    def install(self, *requirements):
+        try:
+            self.working_set.require(*requirements)
+        except Exception:
+            pass
+        else:
+            return
+
+        # `--prefer-binary` guards against race conditions when installation
+        # occurs while packages are in the process of being published.
+        call(self.pip_path, "install", "--prefer-binary", *requirements)
+
+    def install_requirements(self, *requirements_paths):
+        install = []
+        # Check which requirements are already satisfied, to skip calling pip
+        # at all in the case that we've already installed everything, and to
+        # minimise the installs in other cases.
+        for requirements_path in requirements_paths:
+            with open(requirements_path) as f:
+                try:
+                    self.working_set.require(f.read())
+                except Exception:
+                    install.append(requirements_path)
+
+        if install:
+            # `--prefer-binary` guards against race conditions when installation
+            # occurs while packages are in the process of being published.
+            cmd = [self.pip_path, "install", "--prefer-binary"]
+            for path in install:
+                cmd.extend(["-r", path])
+            call(*cmd)