B â‹d%ã@s¦dZddlZddlZddlZddlZddlZddlZddlZddlm Z ddl m Z ddlm Z ej Zdd„Zdd „Zd d „Zd d „Zdd„Zefdd„Zdd„ZdS)zÙ This module provides a simple interface for loading a shared library via ctypes, allowing it to be specified in an OS-independent way and searched for preferentially according to the paths that pkg-config specifies. éN)Ú find_library)Údeque)Ú getoutputcCsÔg}g}g}x8|D]0}t d|¡dkr*qtd |¡ƒt d¡qWt|ƒdkrÊxvtdd |¡ƒ  ¡D]\}|  d¡rŒ|  |dd …¡qj|  d ¡rª|  |dd …¡qj|  d ¡rj|  |dd …¡qjW|||fS) aUse pkg-config to query for the location of libraries, library directories, and header directories Arguments: pkg_libries(list): A list of packages as strings Returns: libraries(list), library_dirs(list), include_dirs(list) z"pkg-config --exists %s 2>/dev/nullrzCould not find library {0}éz>PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 pkg-config --libs --cflags %sú z-léNz-Lz-I) ÚosÚsystemÚprintÚformatÚsysÚexitÚlenrÚjoinÚsplitÚ startswithÚappend)Ú pkg_librariesÚ librariesÚ library_dirsÚ include_dirsÚpkgÚtoken©rú[/work/yifan.wang/ringdown/master-ringdown-env/lib/python3.7/site-packages/pycbc/libutils.pyÚ pkg_config%s"      rcCs2t|ƒ\}}}g}x|D]}| d|¡qW|S)zI Returns a list of header strings that could be passed to a compiler z-I)rr)rÚ_Z header_dirsZheader_stringsZ header_dirrrrÚpkg_config_header_stringsIs  rcCst d |¡¡dkS)Nz#pkg-config --exists {0} 2>/dev/nullr)rr r )ÚpackagerrrÚpkg_config_check_existsUsrc CsÎtj dd¡rgSttjdƒ@}ytjddg|dWn"tdtj dd tjd<gSWdQRXx"|D]}t |ƒsjt d   |¡ƒ‚qjWg}xPyCBC.libutils: pkg-config call failed, setting NO_PKGCONFIG=1)ÚfileÚ1z9Package {0} cannot be found on the pkg-config search pathz;PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 pkg-config --libs-only-L {0}rz-Lr)rÚenvironÚgetÚopenÚdevnullÚ subprocessÚ check_callr r ÚstderrrÚ ValueErrorr rrrrr)ÚpackagesZFNULLrÚlibdirsrrrrÚpkg_config_libdirsXs&     r.cCsèt|ƒ}xÚt|ƒdkrâ| ¡}g}y‚x|t |¡D]n}t |d|d¡s”t |d|d¡s”t |d|d¡s”t ||d¡s”t |d|d¡r0| |¡q0WWntk r¸YnXt|ƒdkr | ¡tj   ||d ¡Sq Wd S) aÜ This function tries to find the architecture-independent library given by libname in the first available directory in the list dirs. 'Architecture-independent' means omitting any prefix such as 'lib' or suffix such as 'so' or 'dylib' or version number. Within the first directory in which a matching pattern can be found, the lexicographically first such file is returned, as a string giving the full path name. The only supported OSes at the moment are posix and mac, and this function does not attempt to determine which is being run. So if for some reason your directory has both '.so' and '.dylib' libraries, who knows what will happen. If the library cannot be found, None is returned. rÚlibz.so*z.dylib*z .*.dylib*z.dllZcygz-*.dlléÿÿÿÿN) rrÚpopleftrÚlistdirÚfnmatchrÚOSErrorÚsortÚpathr)ÚlibnameÚdirsZdirqueueZnextdirÚpossibleZlibfilerrrÚget_libpath_from_dirlist|s$  r:cCs¨g}dtjkr"|tjd d¡7}y|t|ƒ7}Wntk rFYnX| tj tj d¡¡t ||ƒ}|dkrxt |ƒ}|dkr„dS|dkr–t   |¡St j ||dSdS)aÙ This function takes a library name, specified in architecture-independent fashion (i.e. omitting any prefix such as 'lib' or suffix such as 'so' or 'dylib' or version number) and a list of packages that may provide that library, and according first to LD_LIBRARY_PATH, then the results of pkg-config, and falling back to the system search path, will try to return a CDLL ctypes object. If 'mode' is given it will be used when loading the library. ZLD_LIBRARY_PATHú:r/N)Úmode)rr$rr.r+rr6rr Úprefixr:rÚctypesÚCDLL)r7r,r<r-ÚfullpathrrrÚget_ctypes_librarys    rAcCs8y t |¡Stk r2Gdd„dtƒ}||ƒSXdS)aj Try to import library but and return stub if not found Parameters ---------- library_name: str The name of the python library to import Returns ------- library: library or stub Either returns the library if importing is sucessful or it returns a stub which raises an import error and message when accessed. cs$eZdZdd„Z‡fdd„Z‡ZS)z"import_optional..no_modulecSs ||_dS)N)Úlibrary)ÚselfrBrrrÚ__init__Ùsz+import_optional..no_module.__init__cs^|dkrtƒ |¡S|j}t ¡}t |d¡}|dd}d |||||¡}tt |¡ƒ‚dS)NrBrréa9 The function {} tried to access '{}' of library '{}', however, '{}' is not currently installed. To enable this functionality install '{}' (e.g. through pip / conda / system packages / source). ) ÚsuperÚ__getattribute__rBÚinspectÚ currentframeÚgetouterframesr Ú ImportErrorÚcleandoc)rCÚattrr/ZcurframeZcalframeZfunÚmsg)Ú __class__rrrGÜs   z3import_optional..no_module.__getattribute__)Ú__name__Ú __module__Ú __qualname__rDrGÚ __classcell__rr)rOrÚ no_moduleØsrTN)Ú importlibÚ import_modulerKÚobject)Z library_namerTrrrÚimport_optionalÅs  rX)Ú__doc__rUrHrr3r>r r(Ú ctypes.utilrÚ collectionsrrZ DEFAULT_MODEZDEFAULT_RTLD_MODErrrr.r:rArXrrrrÚs(   $ $! (