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