Readd py-zfec 1.5.3

- Fix LICENSE
- Fix RUN_DEPENDS
- Relax USES=python by removing pyutil dependency
- Bump PORTREVISION for dependency change
- Take maintainership

Obtained from:	0441f248ff
		7d159d3b6e
		819ca0443f

MOVED

@@ -13778,7 +13778,6 @@ chinese/bg5pdf||2020-01-27|Has expired: Unmaintained, uses EOLed python27
 comms/py-libimobiledevice||2020-01-27|Has expired: Unmaintained, uses EOLed python27
 converters/py-bcode||2020-01-27|Has expired: Unmaintained, uses EOLed python27
 converters/py-iconv||2020-01-27|Has expired: Unmaintained, uses EOLed python27
-converters/py-zfec||2020-01-27|Has expired: Unmaintained, uses EOLed python27
 databases/gadfly||2020-01-27|Has expired: Unmaintained, uses EOLed python27
 databases/metakit||2020-01-27|Has expired: Unmaintained, uses EOLed python27
 databases/openark-kit||2020-01-27|Has expired: Unmaintained, uses EOLed python27

converters/Makefile

@@ -156,6 +156,7 @@
     SUBDIR += py-text-unidecode
     SUBDIR += py-unidecode
     SUBDIR += py-webencodings
+    SUBDIR += py-zfec
     SUBDIR += rcctools
     SUBDIR += recode
     SUBDIR += rubygem-base32

converters/py-zfec/Makefile

@@ -0,0 +1,33 @@
+# Created by: Kevin Lo <kevlo@FreeBSD.org>
+# $FreeBSD$
+
+PORTNAME=	zfec
+DISTVERSION=	1.5.3
+PORTREVISION=	1
+CATEGORIES=	converters python
+MASTER_SITES=	CHEESESHOP
+PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
+
+MAINTAINER=	sunpoet@FreeBSD.org
+COMMENT=	Efficient, portable erasure coding tool
+
+LICENSE=	GPLv2+ TGGPL
+LICENSE_COMB=	dual
+LICENSE_NAME_TGGPL=	Transitive Grace Period Public Licence 1.0
+LICENSE_FILE_GPLv2+ =	${WRKSRC}/COPYING.GPL
+LICENSE_FILE_TGGPL=	${WRKSRC}/COPYING.TGPPL.rst
+LICENSE_PERMS_TGGPL=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
+
+USES=		python
+USE_PYTHON=	autoplist concurrent distutils
+
+post-install:
+	${STRIP_CMD} ${STAGEDIR}${PYTHON_SITELIBDIR}/zfec/_fec.so
+
+.include <bsd.port.pre.mk>
+
+.if ${PYTHON_REL} < 3000
+RUN_DEPENDS+=	${PYTHON_PKGNAMEPREFIX}argparse>=0.8:devel/py-argparse@${PY_FLAVOR}
+.endif
+
+.include <bsd.port.post.mk>

converters/py-zfec/distinfo

@@ -0,0 +1,3 @@
+TIMESTAMP = 1534918559
+SHA256 (zfec-1.5.3.tar.gz) = b41bd4b0af9c6b3a78bd6734e1e4511475944164375e6241b53df518a366922b
+SIZE (zfec-1.5.3.tar.gz) = 79402

converters/py-zfec/files/patch-setup.py

@@ -0,0 +1,21 @@
+Obtained from:  https://github.com/tahoe-lafs/zfec/commit/7d159d3b6ebb28417b333b89b11c0d88cc069568
+		https://github.com/tahoe-lafs/zfec/commit/819ca0443fc71e33e61226aef9b0b3fd1a93dd41
+
+--- setup.py.orig	2018-04-08 04:36:59 UTC
++++ setup.py
+@@ -60,11 +60,14 @@ setup(
+     long_description=open('README.rst', 'rU').read(),
+     url="https://github.com/tahoe-lafs/zfec",
+     install_requires=[
+-        "pyutil >= 3.0.0",
+         "argparse >= 0.8 ; python_version <= '2.7'",
+         # note to self: single-quotes on the '2.7' are ok:
+         # https://github.com/pypa/packaging/blob/16.8/packaging/markers.py#L121
+ ],
++    extras_require={
++        "bench": ["pyutil >= 3.0.0"],
++        "test": ["twisted", "setuptools_trial", "pyutil >= 3.0.0"],
++    },
+     ext_modules=extensions,
+     cmdclass=versioneer.get_cmdclass(),
+ )

converters/py-zfec/files/patch-zfec-filefec.py

@@ -0,0 +1,54 @@
+Obtained from:	https://github.com/tahoe-lafs/zfec/commit/0441f248ffec150c9c27191b0b7a69a7364a5e7c
+
+--- zfec/filefec.py.orig	2018-02-06 21:53:51 UTC
++++ zfec/filefec.py
+@@ -1,14 +1,35 @@
+ from __future__ import print_function
+ import array, os, struct
+ from base64 import b32encode
+-from pyutil import fileutil
+-from pyutil.mathutil import pad_size, log_ceil
+ 
+ import zfec
+ from zfec import easyfec
+ 
+ CHUNKSIZE = 4096
+ 
++def pad_size(n, k):
++    """
++    The smallest number that has to be added to n to equal a multiple of k.
++    """
++    if n%k:
++        return k - n%k
++    else:
++        return 0
++
++def log_ceil(n, b):
++    """
++    The smallest integer k such that b^k >= n.
++
++    log_ceil(n, 2) is the number of bits needed to store any of n values, e.g.
++    the number of bits needed to store any of 128 possible values is 7.
++    """
++    p = 1
++    k = 0
++    while p < n:
++        p *= b
++        k += 1
++    return k
++
+ def ab(x): # debuggery
+     if len(x) >= 3:
+         return "%s:%s" % (len(x), b32encode(x[-3:]),)
+@@ -224,7 +245,10 @@ def encode_to_files(inf, fsize, dirname, prefix, k, m,
+             for fn in fns:
+                 if verbose:
+                     print("Cleaning up: trying to remove %r..." % (fn,))
+-                fileutil.remove_if_possible(fn)
++                try:
++                    os.remove(fn)
++                except EnvironmentError:
++                    pass
+             return 1
+     if verbose:
+         print()

converters/py-zfec/pkg-descr

@@ -0,0 +1,18 @@
+The zfec package implements an "erasure code", or "forward error correction
+code".
+
+The most widely known example of an erasure code is the RAID-5 algorithm which
+makes it so that in the event of the loss of any one hard drive, the stored data
+can be completely recovered. The algorithm in the zfec package has a similar
+effect, but instead of recovering from the loss of only a single element, it can
+be parameterized to choose in advance the number of elements whose loss it can
+tolerate.
+
+This package is largely based on the old "fec" library by Luigi Rizzo et al.,
+which is a mature and optimized implementation of erasure coding. The zfec
+package makes several changes from the original "fec" package, including
+addition of the Python API, refactoring of the C API to support zero-copy
+operation, a few clean-ups and optimizations of the core code itself, and the
+addition of a command-line tool named "zfec".
+
+WWW: https://github.com/tahoe-lafs/zfec