Add configuration setting to disable entrypoint generation. (#256)

Fixes #255

Author: zooba

src/manage/aliasutils.py

@@ -289,6 +289,9 @@ def calculate_aliases(cmd, install, *, _scan=_scan):
         if default_alias_w:
             yield default_alias_w.replace(name="pythonw", windowed=1)
 
+    if not cmd.enable_entrypoints:
+        return
+
     site_dirs = DEFAULT_SITE_DIRS
     for s in install.get("shortcuts", ()):
         if s.get("kind") == "site-dirs":

src/manage/commands.py

@@ -257,6 +257,7 @@ def execute(self):
         "disable_shortcut_kinds": (str, config_split_append),
         "default_install_tag": (str, None),
         "preserve_site_on_upgrade": (config_bool, None),
+        "enable_entrypoints": (config_bool, None),
     },
 
     "first_run": {
@@ -821,6 +822,7 @@ class InstallCommand(BaseCommand):
     disable_shortcut_kinds = None
     default_install_tag = None
     preserve_site_on_upgrade = True
+    enable_entrypoints = True
 
     def __init__(self, args, root=None):
         super().__init__(args, root)

tests/test_alias.py

@@ -240,6 +240,7 @@ def test_parse_entrypoint_line():
 
 
 def test_scan_entrypoints(fake_config, tmp_path):
+    fake_config.enable_entrypoints = True
     root = tmp_path / "test_install"
     site = root / "site-packages"
     A = site / "A.dist-info"
@@ -268,6 +269,36 @@ def test_scan_entrypoints(fake_config, tmp_path):
     assert [None, None, None, "main", "main"] == [a.func for a in actual]
 
 
+def test_scan_entrypoints_disabled(fake_config, tmp_path):
+    fake_config.enable_entrypoints = False
+    root = tmp_path / "test_install"
+    site = root / "site-packages"
+    A = site / "A.dist-info"
+    A.mkdir(parents=True, exist_ok=True)
+    (root / "target.exe").write_bytes(b"")
+    (A / "entry_points.txt").write_text("""[console_scripts]
+a = a:main
+
+[gui_scripts]
+aw = a:main
+""")
+
+    install = dict(
+        prefix=root,
+        id="test",
+        default=1,
+        alias=[dict(name="target", target="target.exe")],
+        shortcuts=[dict(kind="site-dirs", dirs=["site-packages"])],
+    )
+
+    actual = list(AU.calculate_aliases(fake_config, install))
+
+    assert ["target", "python", "pythonw"] == [a.name for a in actual]
+    assert [0, 0, 1] == [a.windowed for a in actual]
+    assert [None, None, None] == [a.mod for a in actual]
+    assert [None, None, None] == [a.func for a in actual]
+
+
 def test_create_aliases(fake_config, tmp_path):
     target = tmp_path / "target.exe"
     target.write_bytes(b"")

tests/test_install_command.py

@@ -173,6 +173,7 @@ class Cmd:
         launcher_exe = None
         scratch = {}
         enable_shortcut_kinds = disable_shortcut_kinds = None
+        enable_entrypoints = True
         def get_installs(self):
             return [
                 {