Create a OLD_DEFAULT_PYLINT_HOME constants

4 files changed, 12 insertions, 7 deletions

diff --git a/pylint/config/__init__.py b/pylint/config/__init__.py
index f9c393ef7..a07bf594a 100644
--- a/pylint/config/__init__.py
+++ b/pylint/config/__init__.py
@@ -47,7 +47,7 @@ from pylint.config.option import Option
 from pylint.config.option_manager_mixin import OptionsManagerMixIn
 from pylint.config.option_parser import OptionParser
 from pylint.config.options_provider_mixin import OptionsProviderMixIn, UnsupportedAction
-from pylint.constants import DEFAULT_PYLINT_HOME
+from pylint.constants import DEFAULT_PYLINT_HOME, OLD_DEFAULT_PYLINT_HOME
 from pylint.utils import LinterStats
 
 __all__ = [
@@ -67,7 +67,7 @@ if "PYLINTHOME" in os.environ:
     if USER_HOME == "~":
         USER_HOME = os.path.dirname(PYLINT_HOME)
 elif USER_HOME == "~":
-    PYLINT_HOME = ".pylint.d"
+    PYLINT_HOME = OLD_DEFAULT_PYLINT_HOME
 else:
     PYLINT_HOME = DEFAULT_PYLINT_HOME
     # The spam prevention is due to pylint being used in parallel by
@@ -79,7 +79,7 @@ else:
         PYLINT_HOME,
         datetime.now().strftime(prefix_spam_prevention + "_%Y-%m-%d.temp"),
     )
-    old_home = os.path.join(USER_HOME, ".pylint.d")
+    old_home = os.path.join(USER_HOME, OLD_DEFAULT_PYLINT_HOME)
     if os.path.exists(old_home) and not os.path.exists(spam_prevention_file):
         print(
             f"PYLINTHOME is now '{PYLINT_HOME}' but obsolescent '{old_home}' is found; "
diff --git a/pylint/constants.py b/pylint/constants.py
index df688eada..bee1055e1 100644
--- a/pylint/constants.py
+++ b/pylint/constants.py
@@ -40,6 +40,9 @@ MSG_TYPES_STATUS = {"I": 0, "C": 16, "R": 8, "W": 4, "E": 2, "F": 1}
 # on all project using [MASTER] in their rcfile.
 MAIN_CHECKER_NAME = "master"
 
+# pylint: disable-next=fixme
+# TODO Remove in 3.0 with all the surrounding code
+OLD_DEFAULT_PYLINT_HOME = ".pylint.d"
 DEFAULT_PYLINT_HOME = platformdirs.user_cache_dir("pylint")
 
 
diff --git a/pylint/lint/run.py b/pylint/lint/run.py
index d63c936f1..4348fd721 100644
--- a/pylint/lint/run.py
+++ b/pylint/lint/run.py
@@ -6,7 +6,7 @@ import sys
 import warnings
 
 from pylint import __pkginfo__, extensions, interfaces
-from pylint.constants import DEFAULT_PYLINT_HOME, full_version
+from pylint.constants import DEFAULT_PYLINT_HOME, OLD_DEFAULT_PYLINT_HOME, full_version
 from pylint.lint.pylinter import PyLinter
 from pylint.lint.utils import ArgumentPreprocessingError, preprocess_options
 from pylint.utils import print_full_documentation, utils
@@ -275,7 +275,8 @@ group are mutually exclusive.",
 The following environment variables are used:
     * PYLINTHOME
     Path to the directory where persistent data for the run will be stored. If
-not found, it defaults to '{DEFAULT_PYLINT_HOME}'.
+not found, it defaults to '{DEFAULT_PYLINT_HOME}' or '{OLD_DEFAULT_PYLINT_HOME}'
+(in the current working directory).
     * PYLINTRC
     Path to the configuration file. See the documentation for the method used
 to search for configuration file.
diff --git a/tests/lint/unittest_lint.py b/tests/lint/unittest_lint.py
index 91d736744..ad9b28fee 100644
--- a/tests/lint/unittest_lint.py
+++ b/tests/lint/unittest_lint.py
@@ -60,6 +60,7 @@ from pylint.constants import (
     MSG_STATE_CONFIDENCE,
     MSG_STATE_SCOPE_CONFIG,
     MSG_STATE_SCOPE_MODULE,
+    OLD_DEFAULT_PYLINT_HOME,
 )
 from pylint.exceptions import InvalidMessageError
 from pylint.lint import ArgumentPreprocessingError, PyLinter, Run, preprocess_options
@@ -668,13 +669,13 @@ def pop_pylintrc() -> None:
 def test_pylint_home() -> None:
     uhome = os.path.expanduser("~")
     if uhome == "~":
-        expected = ".pylint.d"
+        expected = OLD_DEFAULT_PYLINT_HOME
     else:
         expected = platformdirs.user_cache_dir("pylint")
     assert config.PYLINT_HOME == expected
 
     try:
-        pylintd = join(tempfile.gettempdir(), ".pylint.d")
+        pylintd = join(tempfile.gettempdir(), OLD_DEFAULT_PYLINT_HOME)
         os.environ["PYLINTHOME"] = pylintd
         try:
             reload(config)