From fa81391fe65fa727f79f1be73f058e83ffe97193 Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Wed, 20 Jan 2021 21:13:41 -0500
Subject: [PATCH 1/2] Remove eggsecutable

---
 setup.py                           |  2 --
 setuptools/command/bdist_egg.py    | 49 ++----------------------------
 setuptools/command/easy_install.py | 10 ------
 setuptools/tests/test_bdist_egg.py | 15 ---------
 4 files changed, 2 insertions(+), 74 deletions(-)

diff --git a/setup.py b/setup.py
index 28d3dada34..3d84c65ac4 100755
--- a/setup.py
+++ b/setup.py
@@ -171,8 +171,6 @@ def _restore_install_lib(self):
             "dependency_links.txt = setuptools.command.egg_info:overwrite_arg",
         ],
         "console_scripts": list(_gen_console_scripts()),
-        "setuptools.installation":
-            ['eggsecutable = setuptools.command.easy_install:bootstrap'],
     },
     dependency_links=[
         pypi_link(
diff --git a/setuptools/command/bdist_egg.py b/setuptools/command/bdist_egg.py
index 206f2419ba..e6b1609f7b 100644
--- a/setuptools/command/bdist_egg.py
+++ b/setuptools/command/bdist_egg.py
@@ -2,7 +2,6 @@
 
 Build .egg distributions"""
 
-from distutils.errors import DistutilsSetupError
 from distutils.dir_util import remove_tree, mkpath
 from distutils import log
 from types import CodeType
@@ -11,12 +10,10 @@
 import re
 import textwrap
 import marshal
-import warnings
 
 from pkg_resources import get_build_platform, Distribution, ensure_directory
-from pkg_resources import EntryPoint
 from setuptools.extension import Library
-from setuptools import Command, SetuptoolsDeprecationWarning
+from setuptools import Command
 
 from sysconfig import get_path, get_python_version
 
@@ -268,49 +265,7 @@ def zip_safe(self):
         return analyze_egg(self.bdist_dir, self.stubs)
 
     def gen_header(self):
-        epm = EntryPoint.parse_map(self.distribution.entry_points or '')
-        ep = epm.get('setuptools.installation', {}).get('eggsecutable')
-        if ep is None:
-            return 'w'  # not an eggsecutable, do it the usual way.
-
-        warnings.warn(
-            "Eggsecutables are deprecated and will be removed in a future "
-            "version.",
-            SetuptoolsDeprecationWarning
-        )
-
-        if not ep.attrs or ep.extras:
-            raise DistutilsSetupError(
-                "eggsecutable entry point (%r) cannot have 'extras' "
-                "or refer to a module" % (ep,)
-            )
-
-        pyver = '{}.{}'.format(*sys.version_info)
-        pkg = ep.module_name
-        full = '.'.join(ep.attrs)
-        base = ep.attrs[0]
-        basename = os.path.basename(self.egg_output)
-
-        header = (
-            "#!/bin/sh\n"
-            'if [ `basename $0` = "%(basename)s" ]\n'
-            'then exec python%(pyver)s -c "'
-            "import sys, os; sys.path.insert(0, os.path.abspath('$0')); "
-            "from %(pkg)s import %(base)s; sys.exit(%(full)s())"
-            '" "$@"\n'
-            'else\n'
-            '  echo $0 is not the correct name for this egg file.\n'
-            '  echo Please rename it back to %(basename)s and try again.\n'
-            '  exec false\n'
-            'fi\n'
-        ) % locals()
-
-        if not self.dry_run:
-            mkpath(os.path.dirname(self.egg_output), dry_run=self.dry_run)
-            f = open(self.egg_output, 'w')
-            f.write(header)
-            f.close()
-        return 'a'
+        return 'w'
 
     def copy_metadata_to(self, target_dir):
         "Copy metadata (egg info) to the target_dir"
diff --git a/setuptools/command/easy_install.py b/setuptools/command/easy_install.py
index f1e487d4d2..544e8fd444 100644
--- a/setuptools/command/easy_install.py
+++ b/setuptools/command/easy_install.py
@@ -2284,16 +2284,6 @@ def current_umask():
     return tmp
 
 
-def bootstrap():
-    # This function is called when setuptools*.egg is run using /bin/sh
-    import setuptools
-
-    argv0 = os.path.dirname(setuptools.__path__[0])
-    sys.argv[0] = argv0
-    sys.argv.append(argv0)
-    main()
-
-
 def main(argv=None, **kw):
     from setuptools import setup
     from setuptools.dist import Distribution
diff --git a/setuptools/tests/test_bdist_egg.py b/setuptools/tests/test_bdist_egg.py
index 8760ea304c..fb5b90b1a3 100644
--- a/setuptools/tests/test_bdist_egg.py
+++ b/setuptools/tests/test_bdist_egg.py
@@ -7,7 +7,6 @@
 import pytest
 
 from setuptools.dist import Distribution
-from setuptools import SetuptoolsDeprecationWarning
 
 from . import contexts
 
@@ -65,17 +64,3 @@ def test_exclude_source_files(self, setup_context, user_override):
         names = list(zi.filename for zi in zip.filelist)
         assert 'hi.pyc' in names
         assert 'hi.py' not in names
-
-    def test_eggsecutable_warning(self, setup_context, user_override):
-        dist = Distribution(dict(
-            script_name='setup.py',
-            script_args=['bdist_egg'],
-            name='foo',
-            py_modules=['hi'],
-            entry_points={
-                'setuptools.installation':
-                    ['eggsecutable = my_package.some_module:main_func']},
-        ))
-        dist.parse_command_line()
-        with pytest.warns(SetuptoolsDeprecationWarning):
-            dist.run_commands()

From c0660de32f80ad71b3940abcb26b237ca2103876 Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Sat, 23 Jan 2021 19:07:21 -0500
Subject: [PATCH 2/2] Update changelog.

---
 changelog.d/2545.breaking.rst | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog.d/2545.breaking.rst

diff --git a/changelog.d/2545.breaking.rst b/changelog.d/2545.breaking.rst
new file mode 100644
index 0000000000..0c69fdf34d
--- /dev/null
+++ b/changelog.d/2545.breaking.rst
@@ -0,0 +1 @@
+Removed support for eggsecutables.