dev-python/blake3-py-c: New package, C variant of blake3-py, v0.3.1

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/blake3-py-c/Manifest

@@ -0,0 +1 @@
+DIST blake3-py-0.3.1.gh.tar.gz 131798 BLAKE2B 6c816bab8d1e432453d4d40f4acc4d33bb45d305a2ab8458dded72bfee6ffd687a016d257dad4c2d656ddd5d765e5ad450e18fdd4af084a51f1973ce56daea68 SHA512 d3901339df9dc3409f8c2407c6f4f02fb9e13e8e7a76d77c06d9f58c6cceea4829cedf71a687fdded8ad70897d3a4833f2b124f39837b0ffa5fb8b907b51fd56

dev-python/blake3-py-c/blake3-py-c-0.3.1.ebuild

@@ -0,0 +1,42 @@
+# Copyright 2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DISTUTILS_USE_PEP517=setuptools
+PYTHON_COMPAT=( python3_{8..11} )
+
+inherit distutils-r1
+
+MY_P=${P/-c}
+DESCRIPTION="Python bindings for the BLAKE3 cryptographic hash function"
+HOMEPAGE="https://github.com/oconnor663/blake3-py/"
+SRC_URI="
+	https://github.com/oconnor663/blake3-py/archive/${PV}.tar.gz
+		-> ${MY_P}.gh.tar.gz
+"
+S=${WORKDIR}/${MY_P}/c_impl
+
+LICENSE="|| ( CC0-1.0 Apache-2.0 )"
+SLOT="0"
+KEYWORDS="~amd64"
+
+RDEPEND="
+	!dev-python/blake3-py[${PYTHON_USEDEP}]
+"
+BDEPEND="
+	test? (
+		dev-python/numpy[${PYTHON_USEDEP}]
+	)
+"
+
+distutils_enable_tests pytest
+
+PATCHES=(
+	"${FILESDIR}"/${P}-backports.patch
+)
+
+python_test() {
+	cd .. || die
+	epytest
+}

dev-python/blake3-py-c/files/blake3-py-c-0.3.1-backports.patch

@@ -0,0 +1,73 @@
+From 0d7526621087fd016d4ab5d34abfb35c715ec0cd Mon Sep 17 00:00:00 2001
+From: Thomas Waldmann <tw@waldmann-edv.de>
+Date: Tue, 29 Mar 2022 17:31:02 +0200
+Subject: [PATCH] c_impl: compatibility fix for python < 3.10
+
+---
+ blake3module.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/blake3module.c b/blake3module.c
+index f4160fb..0fce6ad 100644
+--- a/blake3module.c
++++ b/blake3module.c
+@@ -414,7 +414,8 @@ PyMODINIT_FUNC PyInit_blake3(void) {
+     goto exit;
+   }
+ 
+-  if (PyModule_AddObjectRef(module, "blake3", (PyObject *)&Blake3Type) < 0) {
++  if (PyModule_AddObject(module, "blake3", (PyObject *)&Blake3Type) < 0) {
++    Py_DECREF((PyObject *)&Blake3Type);
+     goto exit;
+   }
+ 
+From 52676a355eccfb0050b372cd36a14ab49878e8b3 Mon Sep 17 00:00:00 2001
+From: Thomas Waldmann <tw@waldmann-edv.de>
+Date: Tue, 29 Mar 2022 18:18:46 +0200
+Subject: [PATCH] c_impl: apple silicon build fix, fixes #31
+
+On Apple Silicon (M1 CPU), the platform.machine() call returns "arm64".
+---
+ setup.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/setup.py b/setup.py
+index a159d8b..863c7ea 100644
+--- a/setup.py
++++ b/setup.py
+@@ -66,7 +66,7 @@ def targeting_x86_32():
+ 
+ 
+ def is_aarch64():
+-    return platform.machine().lower() == "aarch64"
++    return platform.machine().lower() in ("aarch64", "arm64")
+ 
+ 
+ def force_intrinsics():
+From 5eac8ae62d8f4e0a574164b73c42837ddc6ff356 Mon Sep 17 00:00:00 2001
+From: Thomas Waldmann <tw@waldmann-edv.de>
+Date: Tue, 29 Mar 2022 20:30:30 +0200
+Subject: [PATCH] c_impl: fix usedforsecurity argument variable type, fixes #34
+
+the python docs state that this must be int (not: bool).
+
+as seen in #34, using the wrong type here seems to overflow the variable
+and leads to a wrong value in max_threads, which leads to that strange
+test failure.
+---
+ blake3module.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/blake3module.c b/blake3module.c
+index 0fce6ad..a9562cf 100644
+--- a/blake3module.c
++++ b/blake3module.c
+@@ -53,7 +53,7 @@ static PyObject *Blake3_new(PyTypeObject *type, PyObject *args,
+   Py_buffer key = {0};
+   const char *derive_key_context = NULL;
+   Py_ssize_t max_threads = 1;
+-  bool usedforsecurity = true;
++  int usedforsecurity = 1;
+ 
+   PyObject *ret = NULL;
+ 

dev-python/blake3-py-c/metadata.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="project">
+		<email>python@gentoo.org</email>
+		<name>Python</name>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">oconnor663/blake3-py</remote-id>
+	</upstream>
+</pkgmetadata>