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Correct a flaw in the Python 3 version checking 

It turns out the ax_python_devel.m4 version check assumes that
("3.X+1.0" >= "3.X.0") is True in Python, which is not when X+1
is 10 or above and X is not. (Also presumably X+1=100 and ...)

So let's remake the check to behave consistently, using the
"packaging" or (if absent) the "distlib" modules.

(Also, update the Github workflows to use the new packages.)

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes: #12073
This commit is contained in:
Rich Ercolani 2021-06-08 20:20:16 -04:00 committed by Tony Hutter
parent c64c17328b
commit 66c9e15686
6 changed files with 51 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.github/workflows/zfs-tests-functional.yml vendored
View File

@ -26,7 +26,7 @@ jobs:
xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
libpam0g-dev pamtester python-dev python-setuptools python-cffi \
python3 python3-dev python3-setuptools python3-cffi
python3 python3-dev python3-setuptools python3-cffi python3-packaging
- name: Autogen.sh
run: |
sh autogen.sh

2
.github/workflows/zfs-tests-sanity.yml vendored
View File

@ -22,7 +22,7 @@ jobs:
xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
libpam0g-dev pamtester python-dev python-setuptools python-cffi \
python3 python3-dev python3-setuptools python3-cffi
python3 python3-dev python3-setuptools python3-cffi python3-packaging
- name: Autogen.sh
run: |
sh autogen.sh

4
.github/workflows/zloop.yml vendored
View File

@ -22,8 +22,8 @@ jobs:
xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
libpam0g-dev \
python-dev python-setuptools python-cffi \
python3 python3-dev python3-setuptools python3-cffi
python-dev python-setuptools python-cffi python-packaging \
python3 python3-dev python3-setuptools python3-cffi python3-packaging
- name: Autogen.sh
run: |
sh autogen.sh

15
config/always-pyzfs.m4
View File

@ -46,6 +46,21 @@ AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_PYZFS], [
])
AC_SUBST(DEFINE_PYZFS)
dnl #
dnl # Python "packaging" (or, failing that, "distlib") module is required to build and install pyzfs
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck -o "x$enable_pyzfs" = xyes], [
ZFS_AC_PYTHON_MODULE([packaging], [], [
ZFS_AC_PYTHON_MODULE([distlib], [], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("Python $PYTHON_VERSION packaging and distlib modules are not installed")
], [test "x$enable_pyzfs" != xno], [
enable_pyzfs=no
])
])
])
])
dnl #
dnl # Require python-devel libraries
dnl #

33
config/ax_python_devel.m4
View File

@ -97,9 +97,18 @@ AC_DEFUN([AX_PYTHON_DEVEL],[
# Check for a version of Python >= 2.1.0
#
AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
ac_supports_python_ver=`$PYTHON -c "import sys; \
ver = sys.version.split ()[[0]]; \
print (ver >= '2.1.0')"`
ac_supports_python_ver=`cat<<EOD | $PYTHON -
from __future__ import print_function;
import sys;
try:
from packaging import version;
except ImportError:
from distlib import version;
ver = sys.version.split ()[[0]];
(tst_cmp, tst_ver) = ">= '2.1.0'".split ();
tst_ver = tst_ver.strip ("'");
eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
EOD`
if test "$ac_supports_python_ver" != "True"; then
if test -z "$PYTHON_NOVERSIONCHECK"; then
AC_MSG_RESULT([no])
@ -126,9 +135,21 @@ to something else than an empty string.
#
if test -n "$1"; then
AC_MSG_CHECKING([for a version of Python $1])
ac_supports_python_ver=`$PYTHON -c "import sys; \
ver = sys.version.split ()[[0]]; \
print (ver $1)"`
# Why the strip ()? Because if we don't, version.parse
# will, for example, report 3.10.0 >= '3.11.0'
ac_supports_python_ver=`cat<<EOD | $PYTHON -
from __future__ import print_function;
import sys;
try:
from packaging import version;
except ImportError:
from distlib import version;
ver = sys.version.split ()[[0]];
(tst_cmp, tst_ver) = "$1".split ();
tst_ver = tst_ver.strip ("'");
eval ("print (version.LegacyVersion (ver)"+ tst_cmp +"version.LegacyVersion (tst_ver))")
EOD`
if test "$ac_supports_python_ver" = "True"; then
AC_MSG_RESULT([yes])
else

5
rpm/generic/zfs.spec.in
View File

@ -284,6 +284,11 @@ Requires: libffi
Requires: python%{__python_pkg_version}
Requires: %{__python_cffi_pkg}
%if 0%{?rhel}%{?fedora}%{?suse_version}
%if 0%{?rhel} >= 8 || 0%{?centos} >= 8 || 0%{?fedora} >= 28
BuildRequires: python3-packaging
%else
BuildRequires: python-packaging
%endif
BuildRequires: python%{__python_pkg_version}-devel
BuildRequires: %{__python_cffi_pkg}
BuildRequires: %{__python_setuptools_pkg}