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Adopt pyzfs from ClusterHQ

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This commit introduces several changes:

 * Update LICENSE and project information

 * Give a good PEP8 talk to existing Python source code

 * Add RPM/DEB packaging for pyzfs

 * Fix some outstanding issues with the existing pyzfs code caused by
   changes in the ABI since the last time the code was updated

 * Integrate pyzfs Python unittest with the ZFS Test Suite

 * Add missing libzfs_core functions: lzc_change_key,
   lzc_channel_program, lzc_channel_program_nosync, lzc_load_key,
   lzc_receive_one, lzc_receive_resumable, lzc_receive_with_cmdprops,
   lzc_receive_with_header, lzc_reopen, lzc_send_resume, lzc_sync,
   lzc_unload_key, lzc_remap

Note: this commit slightly changes zfs_ioc_unload_key() ABI. This allow
to differentiate the case where we tried to unload a key on a
non-existing dataset (ENOENT) from the situation where a dataset has
no key loaded: this is consistent with the "change" case where trying
to zfs_ioc_change_key() from a dataset with no key results in EACCES.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7230
This commit is contained in:
loli10K
2018-03-18 09:34:45 +01:00
committed by Brian Behlendorf
parent 6abf922574
commit 85ce3f4fd1
35 changed files with 2989 additions and 643 deletions
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config/always-pyzfs.m4
+125
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dnl #
dnl # ZFS_AC_PYTHON_MODULE(module_name, [action-if-true], [action-if-false])
dnl #
dnl # Checks for Python module. Freely inspired by AX_PYTHON_MODULE
dnl # https://www.gnu.org/software/autoconf-archive/ax_python_module.html
dnl #
AC_DEFUN([ZFS_AC_PYTHON_MODULE],[
PYTHON_NAME=`basename $PYTHON`
AC_MSG_CHECKING([for $PYTHON_NAME module: $1])
$PYTHON -c "import $1" 2>/dev/null
if test $? -eq 0;
then
AC_MSG_RESULT(yes)
m4_ifvaln([$2], [$2])
else
AC_MSG_RESULT(no)
m4_ifvaln([$3], [$3])
fi
])
dnl #
dnl # ZFS_AC_PYTHON_VERSION(version, [action-if-true], [action-if-false])
dnl #
dnl # Verify Python version
dnl #
AC_DEFUN([ZFS_AC_PYTHON_VERSION], [
AC_MSG_CHECKING([for a version of Python $1])
version_check=`$PYTHON -c "import sys; print (sys.version.split()[[0]] $1)"`
if test "$version_check" = "True";
then
AC_MSG_RESULT(yes)
m4_ifvaln([$2], [$2])
else
AC_MSG_RESULT(no)
m4_ifvaln([$3], [$3])
fi
])
AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_PYZFS], [
PYTHON_REQUIRED_VERSION="<= '2.7.x'"
AC_ARG_ENABLE([pyzfs],
AC_HELP_STRING([--enable-pyzfs],
[install libzfs_core python bindings @<:@default=check@:>@]),
[enable_pyzfs=$enableval],
[enable_pyzfs=check])
AM_PATH_PYTHON([2.7], [], [
AS_IF([test ! "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("python >= 2.7 is not installed")
], [test ! "x$enable_pyzfs" = xno], [
enable_pyzfs=no
])
])
AM_CONDITIONAL([HAVE_PYTHON], [test "$PYTHON" != :])
dnl #
dnl # Python 2.7.x is supported, other versions (3.5) are not yet
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck], [
ZFS_AC_PYTHON_VERSION([$PYTHON_REQUIRED_VERSION], [], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("Python $PYTHON_REQUIRED_VERSION is not available")
], [test ! "x$enable_pyzfs" = xno], [
enable_pyzfs=no
])
])
])
dnl #
dnl # Require python-devel libraries
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck], [
AX_PYTHON_DEVEL([$PYTHON_REQUIRED_VERSION], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("Python development library is not available")
], [test ! "x$enable_pyzfs" = xno], [
enable_pyzfs=no
])
])
])
dnl #
dnl # Python "setuptools" module is required to build and install pyzfs
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck], [
ZFS_AC_PYTHON_MODULE([setuptools], [], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("python-setuptools is not installed")
], [test ! "x$enable_pyzfs" = xno], [
enable_pyzfs=no
])
])
])
dnl #
dnl # Python "cffi" module is required to run pyzfs
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck], [
ZFS_AC_PYTHON_MODULE([cffi], [], [
AS_IF([test "x$enable_pyzfs" = xyes], [
AC_MSG_ERROR("python-cffi is not installed")
], [test ! "x$enable_pyzfs" = xno], [
enable_pyzfs=no
])
])
])
dnl #
dnl # Set enable_pyzfs to 'yes' if every check passed
dnl #
AS_IF([test "x$enable_pyzfs" = xcheck], [enable_pyzfs=yes])
AM_CONDITIONAL([PYZFS_ENABLED], [test x$enable_pyzfs = xyes])
AC_SUBST([PYZFS_ENABLED], [$enable_pyzfs])
AS_IF([test "x$enable_pyzfs" = xyes], [
DEFINE_PYZFS='--define "_pyzfs 1"'
],[
DEFINE_PYZFS=''
])
AC_SUBST(DEFINE_PYZFS)
AC_SUBST(pythonsitedir, [$PYTHON_SITE_PKG])
])