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89 lines
2.9 KiB
89 lines
2.9 KiB
From 712c2028568df7760bc98d95577e35709078bfea Mon Sep 17 00:00:00 2001
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From: Jeffery To <jeffery.to@gmail.com>
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Date: Sun, 8 Nov 2020 21:51:09 +0800
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Subject: [PATCH] Use CFFI in out-of-line API mode (#49)
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Currently, ffi.py is called during setup to generate augeas.py; this
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file would normally be used for out-of-line ABI mode. ffi.py is also
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imported at run-time, instead of the generated augeas.py, and used in
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in-line ABI mode.
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This changes usage of CFFI to out-of-line API mode (CFFI's "main mode of
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usage"): ffi.py is called during setup to generate _augeas.abi3.so (a C
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extension module); this generated module is imported at run-time.
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With this change, the headers/development files for augeas (i.e.
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libaugeas-dev on Debian, augeas-devel on Fedora, etc.) and the C
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compiler are required for build/setup. (These were not necessary
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previously.)
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Closes https://github.com/hercules-team/python-augeas/issues/48.
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---
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augeas/__init__.py | 2 +-
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augeas/ffi.py | 27 ++++++++++++++++++++++-----
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setup.py | 1 +
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3 files changed, 24 insertions(+), 6 deletions(-)
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--- a/augeas/__init__.py
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+++ b/augeas/__init__.py
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@@ -32,7 +32,7 @@ format and the transformation into a tre
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from sys import version_info as _pyver
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-from augeas.ffi import ffi, lib
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+from _augeas import ffi, lib
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__author__ = "Nathaniel McCallum <nathaniel@natemccallum.com>"
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__credits__ = """Jeff Schroeder <jeffschroeder@computer.org>
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--- a/augeas/ffi.py
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+++ b/augeas/ffi.py
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@@ -1,9 +1,28 @@
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+import os
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+import subprocess
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+
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from cffi import FFI
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+def get_include_dirs():
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+ XML2_CONFIG = os.environ.get('XML2_CONFIG', 'xml2-config')
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+ PKG_CONFIG = os.environ.get('PKG_CONFIG', 'pkg-config')
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+ try:
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+ stdout = subprocess.check_output([XML2_CONFIG, '--cflags'])
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+ except (OSError, subprocess.CalledProcessError):
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+ try:
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+ stdout = subprocess.check_output([PKG_CONFIG, '--cflags', 'libxml-2.0'])
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+ except (OSError, subprocess.CalledProcessError):
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+ stdout = b''
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+ cflags = stdout.decode('utf-8').split()
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+ return [cflag[2:] for cflag in cflags if cflag.startswith('-I')]
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+
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ffi = FFI()
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-ffi.set_source("augeas",
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- None,
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- libraries=['augeas'])
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+ffi.set_source("_augeas",
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+ """
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+ #include <augeas.h>
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+ """,
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+ libraries=['augeas'],
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+ include_dirs=get_include_dirs())
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ffi.cdef("""
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typedef struct augeas augeas;
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@@ -44,7 +63,5 @@ const char *aug_error_details(augeas *au
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void free(void *);
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""")
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-lib = ffi.dlopen("augeas")
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-
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if __name__ == "__main__":
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ffi.compile(verbose=True)
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--- a/setup.py
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+++ b/setup.py
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@@ -22,6 +22,7 @@ setup(name=name,
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setup_requires=["cffi>=1.0.0"],
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cffi_modules=["augeas/ffi.py:ffi"],
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install_requires=["cffi>=1.0.0"],
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+ zip_safe=False,
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url="http://augeas.net/",
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classifiers=[
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"Programming Language :: Python :: 2.7",
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