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pythonPackages.Wand: fix loading extensions
This commit is contained in:
Frederik Rietdijk
parent
5b7b91f6b3
commit
464b5aa6fb
51
pkgs/development/python-modules/Wand/default.nix
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51
pkgs/development/python-modules/Wand/default.nix
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@ -0,0 +1,51 @@
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{ stdenv
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, lib
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, buildPythonPackage
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, fetchPypi
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, imagemagick
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, pytest
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, psutil
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, memory_profiler
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, pytest_xdist
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, sharedLibraryExtension
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}:
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let
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magick_wand_library = "${imagemagick}/lib/libMagickWand-6.Q16${sharedLibraryExtension}";
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imagemagick_library = "${imagemagick}/lib/libMagickCore-6.Q16${sharedLibraryExtension}";
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in buildPythonPackage rec {
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pname = "Wand";
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version = "0.4.4";
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name = "${pname}-${version}";
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src = fetchPypi {
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inherit pname version;
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sha256 = "28e0454c9d16d69c5d5034918d96320d8f9f1377b4fdaf4944eec2f938c74704";
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};
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checkInputs = [ pytest pytest_xdist memory_profiler psutil ];
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buildInputs = [ imagemagick ];
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patches = [
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./libraries.patch
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];
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inherit magick_wand_library imagemagick_library;
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postPatch = ''
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substituteAllInPlace wand/api.py
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'';
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# No tests
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doCheck = false;
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meta = {
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description = "Ctypes-based simple MagickWand API binding for Python";
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homepage = http://wand-py.org/;
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license = with lib.licenses; [ mit ];
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};
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passthru = {
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inherit imagemagick;
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};
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}
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149
pkgs/development/python-modules/Wand/libraries.patch
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149
pkgs/development/python-modules/Wand/libraries.patch
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@ -0,0 +1,149 @@
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diff --git a/wand/api.py b/wand/api.py
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index 2c18513..1a1b511 100644
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--- a/wand/api.py
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+++ b/wand/api.py
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@@ -43,98 +43,6 @@ class c_magick_char_p(ctypes.c_char_p):
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"""
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library.MagickRelinquishMemory(self)
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-
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-def library_paths():
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- """Iterates for library paths to try loading. The result paths are not
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- guaranteed that they exist.
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-
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- :returns: a pair of libwand and libmagick paths. they can be the same.
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- path can be ``None`` as well
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- :rtype: :class:`tuple`
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-
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- """
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- libwand = None
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- libmagick = None
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- versions = '', '-6', '-Q16', '-Q8', '-6.Q16'
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- options = '', 'HDRI', 'HDRI-2'
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- system = platform.system()
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- magick_home = os.environ.get('MAGICK_HOME')
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-
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- if system == 'Windows':
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- # ImageMagick installers normally install coder and filter DLLs in
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- # subfolders, we need to add those folders to PATH, otherwise loading
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- # the DLL later will fail.
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- try:
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- with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE,
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- r"SOFTWARE\ImageMagick\Current") as reg_key:
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- libPath = winreg.QueryValueEx(reg_key, "LibPath")
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- coderPath = winreg.QueryValueEx(reg_key, "CoderModulesPath")
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- filterPath = winreg.QueryValueEx(reg_key, "FilterModulesPath")
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- magick_home = libPath[0]
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- os.environ['PATH'] += (';' + libPath[0] + ";" +
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- coderPath[0] + ";" + filterPath[0])
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- except OSError:
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- # otherwise use MAGICK_HOME, and we assume the coder and
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- # filter DLLs are in the same directory
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- pass
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-
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- def magick_path(path):
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- return os.path.join(magick_home, *path)
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- combinations = itertools.product(versions, options)
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- for suffix in (version + option for version, option in combinations):
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- # On Windows, the API is split between two libs. On other platforms,
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- # it's all contained in one.
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- if magick_home:
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- if system == 'Windows':
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- libwand = 'CORE_RL_wand_{0}.dll'.format(suffix),
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- libmagick = 'CORE_RL_magick_{0}.dll'.format(suffix),
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- yield magick_path(libwand), magick_path(libmagick)
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- libwand = 'libMagickWand{0}.dll'.format(suffix),
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- libmagick = 'libMagickCore{0}.dll'.format(suffix),
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- yield magick_path(libwand), magick_path(libmagick)
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- elif system == 'Darwin':
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- libwand = 'lib', 'libMagickWand{0}.dylib'.format(suffix),
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- yield magick_path(libwand), magick_path(libwand)
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- else:
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- libwand = 'lib', 'libMagickWand{0}.so'.format(suffix),
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- yield magick_path(libwand), magick_path(libwand)
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- if system == 'Windows':
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- libwand = ctypes.util.find_library('CORE_RL_wand_' + suffix)
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- libmagick = ctypes.util.find_library('CORE_RL_magick_' + suffix)
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- yield libwand, libmagick
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- libwand = ctypes.util.find_library('libMagickWand' + suffix)
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- libmagick = ctypes.util.find_library('libMagickCore' + suffix)
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- yield libwand, libmagick
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- else:
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- libwand = ctypes.util.find_library('MagickWand' + suffix)
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- yield libwand, libwand
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-
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-
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-def load_library():
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- """Loads the MagickWand library.
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-
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- :returns: the MagickWand library and the ImageMagick library
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- :rtype: :class:`ctypes.CDLL`
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-
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- """
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- tried_paths = []
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- for libwand_path, libmagick_path in library_paths():
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- if libwand_path is None or libmagick_path is None:
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- continue
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- try:
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- tried_paths.append(libwand_path)
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- libwand = ctypes.CDLL(libwand_path)
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- if libwand_path == libmagick_path:
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- libmagick = libwand
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- else:
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- tried_paths.append(libmagick_path)
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- libmagick = ctypes.CDLL(libmagick_path)
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- except (IOError, OSError):
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- continue
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- return libwand, libmagick
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- raise IOError('cannot find library; tried paths: ' + repr(tried_paths))
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-
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-
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if not hasattr(ctypes, 'c_ssize_t'):
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if ctypes.sizeof(ctypes.c_uint) == ctypes.sizeof(ctypes.c_void_p):
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ctypes.c_ssize_t = ctypes.c_int
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@@ -176,43 +84,14 @@ class AffineMatrix(ctypes.Structure):
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# Preserve the module itself even if it fails to import
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sys.modules['wand._api'] = sys.modules['wand.api']
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-try:
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- libraries = load_library()
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-except (OSError, IOError):
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- msg = 'http://docs.wand-py.org/en/latest/guide/install.html'
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- if sys.platform.startswith(('dragonfly', 'freebsd')):
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- msg = 'pkg install'
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- elif sys.platform == 'win32':
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- msg += '#install-imagemagick-on-windows'
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- elif sys.platform == 'darwin':
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- mac_pkgmgrs = {'brew': 'brew install freetype imagemagick',
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- 'port': 'port install imagemagick'}
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- for pkgmgr in mac_pkgmgrs:
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- with os.popen('which ' + pkgmgr) as f:
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- if f.read().strip():
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- msg = mac_pkgmgrs[pkgmgr]
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- break
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- else:
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- msg += '#install-imagemagick-on-mac'
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- else:
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- distname, _, __ = platform.linux_distribution()
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- distname = (distname or '').lower()
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- if distname in ('debian', 'ubuntu'):
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- msg = 'apt-get install libmagickwand-dev'
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- elif distname in ('fedora', 'centos', 'redhat'):
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- msg = 'yum install ImageMagick-devel'
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- raise ImportError('MagickWand shared library not found.\n'
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- 'You probably had not installed ImageMagick library.\n'
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- 'Try to install:\n ' + msg)
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-
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#: (:class:`ctypes.CDLL`) The MagickWand library.
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-library = libraries[0]
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+library = ctypes.CDLL("@magick_wand_library@")
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#: (:class:`ctypes.CDLL`) The ImageMagick library. It is the same with
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#: :data:`library` on platforms other than Windows.
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#:
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#: .. versionadded:: 0.1.10
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-libmagick = libraries[1]
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+libmagick = ctypes.CDLL("@imagemagick_library@")
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try:
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library.MagickWandGenesis.argtypes = []
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@ -26721,28 +26721,10 @@ EOF
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websockets = callPackage ../development/python-modules/websockets { };
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Wand = buildPythonPackage rec {
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pname = "Wand";
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version = "0.4.4";
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name = "${pname}-${version}";
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src = pkgs.fetchurl {
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url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${name}.tar.gz";
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sha256 = "28e0454c9d16d69c5d5034918d96320d8f9f1377b4fdaf4944eec2f938c74704";
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};
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buildInputs = with self; [ pkgs.imagemagick pytest psutil memory_profiler pytest_xdist ];
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# No tests
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doCheck = false;
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meta = {
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description = "Ctypes-based simple MagickWand API binding for Python";
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homepage = http://wand-py.org/;
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platforms = platforms.all;
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};
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Wand = callPackage ../development/python-modules/Wand {
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imagemagick = pkgs.imagemagickBig;
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};
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wcwidth = buildPythonPackage rec {
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name = "wcwidth-${version}";
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version = "0.1.6";
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