package/python-ruamel-yaml-clib: new package

Add optional c extension for python-ruamel-yaml which can speed up yaml
loading/parsing.

Extend the ruamel-yaml runtime test to check if the c extension works
correctly.

Signed-off-by: Marcus Hoffmann <buildroot@bubu1.eu>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -2157,6 +2157,7 @@ F:	utils/diffconfig
 
 N:	Marcus Hoffmann <bubu@bubu1.eu>
 F:	package/python-jc/
+F:	package/python-ruamel-yaml-clib/
 F:	support/testing/tests/package/test_python_fastapi.py
 F:	support/testing/tests/package/test_python_ruamel_yaml.py
 F:	support/testing/tests/package/sample_python_fastapi.py

package/Config.in

@@ -1331,6 +1331,7 @@ menu "External python modules"
 	source "package/python-rtoml/Config.in"
 	source "package/python-rtslib-fb/Config.in"
 	source "package/python-ruamel-yaml/Config.in"
+	source "package/python-ruamel-yaml-clib/Config.in"
 	source "package/python-s3transfer/Config.in"
 	source "package/python-scandir/Config.in"
 	source "package/python-scapy/Config.in"

package/python-ruamel-yaml-clib/Config.in

@@ -0,0 +1,8 @@
+config BR2_PACKAGE_PYTHON_RUAMEL_YAML_CLIB
+	bool "python-ruamel-yaml-clib"
+	depends on BR2_PACKAGE_PYTHON_RUAMEL_YAML
+	help
+	  C version of reader, parser and emitter for ruamel.yaml
+	  derived from libyaml
+
+	  https://sourceforge.net/projects/ruamel-yaml/

package/python-ruamel-yaml-clib/python-ruamel-yaml-clib.hash

@@ -0,0 +1,5 @@
+# md5, sha256 from https://pypi.org/pypi/ruamel.yaml.clib/json
+md5  b72e549363fa1b9c4f9123e98f2b46cc  ruamel.yaml.clib-0.2.8.tar.gz
+sha256  beb2e0404003de9a4cab9753a8805a8fe9320ee6673136ed7f04255fe60bb512  ruamel.yaml.clib-0.2.8.tar.gz
+# Locally computed sha256 checksums
+sha256  5458f90e82366f660f956b3c929ba5f7a0efdb99a99a847e2f51f2020ffbe887  LICENSE

package/python-ruamel-yaml-clib/python-ruamel-yaml-clib.mk

@@ -0,0 +1,14 @@
+################################################################################
+#
+# python-ruamel-yaml-clib
+#
+################################################################################
+
+PYTHON_RUAMEL_YAML_CLIB_VERSION = 0.2.8
+PYTHON_RUAMEL_YAML_CLIB_SOURCE = ruamel.yaml.clib-$(PYTHON_RUAMEL_YAML_CLIB_VERSION).tar.gz
+PYTHON_RUAMEL_YAML_CLIB_SITE = https://files.pythonhosted.org/packages/46/ab/bab9eb1566cd16f060b54055dd39cf6a34bfa0240c53a7218c43e974295b
+PYTHON_RUAMEL_YAML_CLIB_SETUP_TYPE = setuptools
+PYTHON_RUAMEL_YAML_CLIB_LICENSE = MIT
+PYTHON_RUAMEL_YAML_CLIB_LICENSE_FILES = LICENSE
+
+$(eval $(python-package))

support/testing/tests/package/sample_python_ruamel_yaml.py

@@ -25,3 +25,15 @@ parsed = yaml.load(yaml_text)
 
 assert parsed['OneMoreRootKey'] == 9.99
 assert parsed['ListRoot'][1]['another-int'] == 1111
+
+# Tests the C extension based loader
+# ruamel.yaml automatically falls back to the pure python version, so we need
+# to explicitly check if importing the CLoader works here.
+# Import this here, so it's clearer what part of the test is failing.
+from ruamel.yaml import CLoader  # noqa: E402
+assert CLoader is not None
+yaml = YAML(typ='safe')
+parsed_from_c = yaml.load(yaml_text)
+
+assert parsed_from_c['OneMoreRootKey'] == 9.99
+assert parsed_from_c['ListRoot'][1]['another-int'] == 1111

support/testing/tests/package/test_python_ruamel_yaml.py

@@ -7,6 +7,7 @@ class TestPythonPy3RuamelYaml(TestPythonPackageBase):
         """
         BR2_PACKAGE_PYTHON3=y
         BR2_PACKAGE_PYTHON_RUAMEL_YAML=y
+        BR2_PACKAGE_PYTHON_RUAMEL_YAML_CLIB=y
         """
     sample_scripts = ["tests/package/sample_python_ruamel_yaml.py"]
     timeout = 40