Delete dead _copy_dist_from_dir().

Author: erikrose

pip/download.py

@@ -727,45 +727,6 @@ def unpack_file_url(link, location, download_dir=None):
         _copy_file(from_path, download_dir, content_type, link)
 
 
-def _copy_dist_from_dir(link_path, location):
-    """Copy distribution files in `link_path` to `location`.
-
-    Invoked when user requests to install a local directory. E.g.:
-
-        pip install .
-        pip install ~/dev/git-repos/python-prompt-toolkit
-
-    """
-
-    # Note: This is currently VERY SLOW if you have a lot of data in the
-    # directory, because it copies everything with `shutil.copytree`.
-    # What it should really do is build an sdist and install that.
-    # See https://github.com/pypa/pip/issues/2195
-
-    if os.path.isdir(location):
-        rmtree(location)
-
-    # build an sdist
-    setup_py = 'setup.py'
-    sdist_args = [sys.executable]
-    sdist_args.append('-c')
-    sdist_args.append(
-        "import setuptools, tokenize;__file__=%r;"
-        "exec(compile(getattr(tokenize, 'open', open)(__file__).read()"
-        ".replace('\\r\\n', '\\n'), __file__, 'exec'))" % setup_py)
-    sdist_args.append('sdist')
-    sdist_args += ['--dist-dir', location]
-    logger.info('Running setup.py sdist for %s', link_path)
-
-    with indent_log():
-        call_subprocess(sdist_args, cwd=link_path, show_stdout=False)
-
-    # unpack sdist into `location`
-    sdist = os.path.join(location, os.listdir(location)[0])
-    logger.info('Unpacking sdist %s into %s', sdist, location)
-    unpack_file(sdist, location, content_type=None, link=None)
-
-
 class PipXmlrpcTransport(xmlrpc_client.Transport):
     """Provide a `xmlrpclib.Transport` implementation via a `PipSession`
     object.