Add a testutil extra-require and add gitpython to it (#5842)

Closes #5486

4 files changed, 16 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index e566e1da3..b6ba4becf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -43,6 +43,12 @@ Release date: TBA
 
   Closes #5322
 
+* Added a ``testutil`` extra require to the packaging, as ``gitpython`` should not be a dependency
+  all the time but is still required to use the primer helper code in ``pylint.testutil``. You can
+  install it with ``pip install pylint[testutil]``.
+
+  Closes #5486
+
 * Added several checkers to deal with unicode security issues
   (see `Trojan Sources <https://trojansource.codes/>`_ and
   `PEP 672 <https://www.python.org/dev/peps/pep-0672/>`_ for details) that also
diff --git a/doc/whatsnew/2.13.rst b/doc/whatsnew/2.13.rst
index 580f0b69d..21f13c004 100644
--- a/doc/whatsnew/2.13.rst
+++ b/doc/whatsnew/2.13.rst
@@ -254,6 +254,12 @@ Other Changes
 
   Closes #3793
 
+* Added a ``testutil`` extra require to the packaging, as ``gitpython`` should not be a dependency
+  all the time but is still required to use the primer helper code in ``pylint.testutil``. You can
+  install it with ``pip install pylint[testutil]``.
+
+  Closes #5486
+
 * Fixed a false positive for ``used-before-assignment`` when a named expression
   appears as the first value in a container.
 
diff --git a/requirements_test_min.txt b/requirements_test_min.txt
index c2c82c554..79f99044b 100644
--- a/requirements_test_min.txt
+++ b/requirements_test_min.txt
@@ -1,6 +1,5 @@
--e .
+-e .[testutil]
 # astroid dependency is also defined in setup.cfg
 astroid==2.9.3  # Pinned to a specific version for tests
 pytest~=7.0
 pytest-benchmark~=3.4
-gitpython>3
diff --git a/setup.cfg b/setup.cfg
index 1699b1f32..26318dd7c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -56,6 +56,9 @@ install_requires =
     typing-extensions>=3.10.0;python_version<"3.10"
 python_requires = >=3.6.2
 
+[options.extras_require]
+testutil=gitpython>3
+
 [options.packages.find]
 include =
     pylint*