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-rw-r--r--debian/patches/ensurepip-wheels.diff121
1 files changed, 121 insertions, 0 deletions
diff --git a/debian/patches/ensurepip-wheels.diff b/debian/patches/ensurepip-wheels.diff
new file mode 100644
index 0000000..df5de92
--- /dev/null
+++ b/debian/patches/ensurepip-wheels.diff
@@ -0,0 +1,121 @@
+Index: b/Lib/ensurepip/__init__.py
+===================================================================
+--- a/Lib/ensurepip/__init__.py
++++ b/Lib/ensurepip/__init__.py
+@@ -1,3 +1,4 @@
++import glob
+ import os
+ import os.path
+ import pkgutil
+@@ -8,13 +9,10 @@ import tempfile
+ __all__ = ["version", "bootstrap"]
+
+
+-_SETUPTOOLS_VERSION = "28.8.0"
+-
+-_PIP_VERSION = "9.0.1"
+-
+ _PROJECTS = [
+- ("setuptools", _SETUPTOOLS_VERSION),
+- ("pip", _PIP_VERSION),
++ "setuptools",
++ "pip",
++ "pkg_resources",
+ ]
+
+
+@@ -32,7 +30,10 @@ def version():
+ """
+ Returns a string specifying the bundled version of pip.
+ """
+- return _PIP_VERSION
++ wheel_names = glob.glob('/usr/share/python-wheels/pip-*.whl')
++ assert len(wheel_names) == 1, wheel_names
++ return os.path.basename(wheel_names[0]).split('-')[1]
++
+
+ def _disable_pip_configuration_settings():
+ # We deliberately ignore all pip environment variables
+@@ -73,20 +74,44 @@ def bootstrap(*, root=None, upgrade=Fals
+ # omit pip and easy_install
+ os.environ["ENSUREPIP_OPTIONS"] = "install"
+
++ # Debian: The bundled wheels are useless to us because we must use ones
++ # crafted from source code in the archive. As we build the virtual
++ # environment, copy the wheels from the system location into the virtual
++ # environment, and place those wheels on sys.path.
++ def copy_wheels(wheels, destdir, paths):
++ for project in wheels:
++ wheel_names = glob.glob(
++ '/usr/share/python-wheels/{}-*.whl'.format(project))
++ if len(wheel_names) == 0:
++ raise RuntimeError('missing dependency wheel %s' % project)
++ assert len(wheel_names) == 1, wheel_names
++ wheel_name = os.path.basename(wheel_names[0])
++ path = os.path.join('/usr/share/python-wheels', wheel_name)
++ with open(path, 'rb') as fp:
++ whl = fp.read()
++ dest = os.path.join(destdir, wheel_name)
++ with open(dest, 'wb') as fp:
++ fp.write(whl)
++ paths.append(dest)
++
+ with tempfile.TemporaryDirectory() as tmpdir:
++ # This directory is a "well known directory" which Debian has patched
++ # pip to look in when attempting to locate wheels to use to satisfy
++ # the dependencies that pip normally bundles but Debian has debundled.
++ # This is critically important and if this directory changes then both
++ # python-pip and python-virtualenv needs updated to match.
++ venv_wheel_dir = os.path.join(sys.prefix, 'share', 'python-wheels')
++ os.makedirs(venv_wheel_dir, exist_ok=True)
++ dependencies = [
++ os.path.basename(whl).split('-')[0]
++ for whl in glob.glob('/usr/share/python-wheels/*.whl')
++ ]
++ copy_wheels(dependencies, venv_wheel_dir, sys.path)
++
+ # Put our bundled wheels into a temporary directory and construct the
+ # additional paths that need added to sys.path
+ additional_paths = []
+- for project, version in _PROJECTS:
+- wheel_name = "{}-{}-py2.py3-none-any.whl".format(project, version)
+- whl = pkgutil.get_data(
+- "ensurepip",
+- "_bundled/{}".format(wheel_name),
+- )
+- with open(os.path.join(tmpdir, wheel_name), "wb") as fp:
+- fp.write(whl)
+-
+- additional_paths.append(os.path.join(tmpdir, wheel_name))
++ copy_wheels(_PROJECTS, tmpdir, additional_paths)
+
+ # Construct the arguments to be passed to the pip command
+ args = ["install", "--no-index", "--find-links", tmpdir]
+@@ -99,7 +124,7 @@ def bootstrap(*, root=None, upgrade=Fals
+ if verbosity:
+ args += ["-" + "v" * verbosity]
+
+- _run_pip(args + [p[0] for p in _PROJECTS], additional_paths)
++ _run_pip(args + _PROJECTS, additional_paths)
+
+ def _uninstall_helper(*, verbosity=0):
+ """Helper to support a clean default uninstall process on Windows
+@@ -113,7 +138,8 @@ def _uninstall_helper(*, verbosity=0):
+ return
+
+ # If the pip version doesn't match the bundled one, leave it alone
+- if pip.__version__ != _PIP_VERSION:
++ # Disabled for Debian, always using the version from the python3-pip package.
++ if False and pip.__version__ != _PIP_VERSION:
+ msg = ("ensurepip will only uninstall a matching version "
+ "({!r} installed, {!r} bundled)")
+ print(msg.format(pip.__version__, _PIP_VERSION), file=sys.stderr)
+@@ -126,7 +152,7 @@ def _uninstall_helper(*, verbosity=0):
+ if verbosity:
+ args += ["-" + "v" * verbosity]
+
+- _run_pip(args + [p[0] for p in reversed(_PROJECTS)])
++ _run_pip(args + reversed(_PROJECTS))
+
+
+ def _main(argv=None):