mongodb: fix build with python 3.12

The moduleconfig.py build script uses the 'imp' module which
is deprecated in favor of 'importlib' in python 3.12. This fixes
the build issue by replacing the affected portion of the code
and the package now builds fine on hosts with python 3.12.

Signed-off-by: Awais Belal <awais.belal@gmail.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

2 files changed, 58 insertions, 2 deletions

diff --git a/meta-oe/dynamic-layers/meta-python/recipes-dbs/mongodb/mongodb/0001-moduleconfig.py-python-3.12-compatibility.patch b/meta-oe/dynamic-layers/meta-python/recipes-dbs/mongodb/mongodb/0001-moduleconfig.py-python-3.12-compatibility.patch
new file mode 100644
index 0000000000..51926b9d2e
--- /dev/null
+++ b/meta-oe/dynamic-layers/meta-python/recipes-dbs/mongodb/mongodb/0001-moduleconfig.py-python-3.12-compatibility.patch
@@ -0,0 +1,57 @@
+From 37580777bc5294d606584f3731d9f5f5425bb587 Mon Sep 17 00:00:00 2001
+From: Awais B <awais.b@rufilla.com>
+Date: Tue, 4 Mar 2025 11:27:10 +0000
+Subject: [PATCH] moduleconfig.py: python 3.12 compatibility
+
+The imp module was deprecated in python 3.4 and is dropped
+with python 3.12. We now need to use importlib for the
+purpose of manipulating/loading modules.
+
+Upstream-Status: Pending
+Signed-off-by: Awais B <awais.b@rufilla.com>
+---
+ buildscripts/moduleconfig.py | 21 ++++++++++++++-------
+ 1 file changed, 14 insertions(+), 7 deletions(-)
+
+diff --git a/buildscripts/moduleconfig.py b/buildscripts/moduleconfig.py
+index b4d0bba0490..69dd91ab30d 100644
+--- a/buildscripts/moduleconfig.py
++++ b/buildscripts/moduleconfig.py
+@@ -27,7 +27,8 @@ MongoDB SConscript files do.
+ __all__ = ('discover_modules', 'discover_module_directories', 'configure_modules',
+            'register_module_test')  # pylint: disable=undefined-all-variable
+ 
+-import imp
++import importlib
++import sys
+ import inspect
+ import os
+ 
+@@ -71,12 +72,18 @@ def discover_modules(module_root, allowed_modules):
+             print("adding module: %s" % (name))
+             fp = open(build_py, "r")
+             try:
+-                module = imp.load_module("module_" + name, fp, build_py,
+-                                         (".py", "r", imp.PY_SOURCE))
+-                if getattr(module, "name", None) is None:
+-                    module.name = name
+-                found_modules.append(module)
+-                found_module_names.append(name)
++                module_name = "module_" + name
++                module_spec = importlib.util.spec_from_file_location(module_name, build_py)
++
++                if module_spec is not None:
++                    module = importlib.util.module_from_spec(module_spec)
++                    sys.modules[module_name] = module
++                    module_spec.loader.exec_module(module)
++
++                    if not hasattr(module, "name"):
++                        module.name = name
++                    found_modules.append(module)
++                    found_module_names.append(name)
+             finally:
+                 fp.close()
+         except (FileNotFoundError, IOError):
+-- 
+2.34.1
+
diff --git a/meta-oe/dynamic-layers/meta-python/recipes-dbs/mongodb/mongodb_git.bb b/meta-oe/dynamic-layers/meta-python/recipes-dbs/mongodb/mongodb_git.bb
index ee5c77a85d..f7fd881713 100644
--- a/meta-oe/dynamic-layers/meta-python/recipes-dbs/mongodb/mongodb_git.bb
+++ b/meta-oe/dynamic-layers/meta-python/recipes-dbs/mongodb/mongodb_git.bb
@@ -36,6 +36,7 @@ SRC_URI = "git://github.com/mongodb/mongo.git;branch=v4.4;protocol=https \
            file://0001-apply-msvc-workaround-for-clang-16.patch \
            file://0001-Fix-type-mismatch-on-32bit-arches.patch \
            file://0001-Fix-build-on-32bit.patch \
+           file://0001-moduleconfig.py-python-3.12-compatibility.patch \
            "
 SRC_URI:append:libc-musl ="\
            file://0001-Mark-one-of-strerror_r-implementation-glibc-specific.patch \
@@ -145,5 +146,3 @@ SYSTEMD_SERVICE:${PN} = "mongod.service"
 FILES:${PN} += "${nonarch_libdir}/tmpfiles.d"
 
 RDEPENDS:${PN} += "tzdata-core"
-
-SKIP_RECIPE[mongodb] ?= "Needs porting to python 3.12"