U mu ft @s(dZddlZddlZddlZddlZddlmZmZmZm Z ddl m Z GdddeZ e ee dd d Zee ee d d d Ze e ee dddZedkr$ddlZeZedstdedeedeejedddeeddedddD]ZeeddqdS)zPEP 656 support. This module implements logic to detect if the currently running Python is linked against musl, and what musl version is used. N)Iterator NamedTupleOptionalSequence)ELFFilec@seZdZUeed<eed<dS) _MuslVersionmajorminorN)__name__ __module__ __qualname__int__annotations__rr8/tmp/pip-unpacked-wheel-nsq0ak9d/packaging/_musllinux.pyrs r)outputreturncCsxdddd|DD}t|dks<|ddddkr@dStd |d }|sXdStt|d t|dd S) NcSsg|] }|r|qSrr.0nrrr sz'_parse_musl_version..css|]}|VqdS)N)striprrrr sz&_parse_musl_version..rmuslzVersion (\d+)\.(\d+)r)r r ) splitlineslenrematchrrgroup)rlinesmrrr_parse_musl_versions r$) executablerc Cstz$t|d}t|j}W5QRXWntttfk r@YdSX|dksRd|krVdStj|gtjdd}t |j S)a`Detect currently-running musl runtime version. This is done by checking the specified executable's dynamic linking information, and invoking the loader to parse its output for a version string. If the loader is musl, the output would be something like:: musl libc (x86_64) Version 1.2.2 Dynamic Program Loader rbNrT)stderrtext) openr interpreterOSError TypeError ValueError subprocessrunPIPEr$r')r%fZldprocrrr_get_musl_versions  r3)archsrccsRttj}|dkrdS|D]2}t|jddD]}d|jd|d|Vq,qdS)aGenerate musllinux tags compatible to the current platform. :param archs: Sequence of compatible architectures. The first one shall be the closest to the actual architecture and be the part of platform tag after the ``linux_`` prefix, e.g. ``x86_64``. The ``linux_`` prefix is assumed as a prerequisite for the current platform to be musllinux-compatible. :returns: An iterator of compatible musllinux tags. NZ musllinux__)r3sysr%ranger r )r4Zsys_muslarchr rrr platform_tags6s r:__main__zlinux-z not linuxzplat:zmusl:ztags: )endz[.-]r6-r5z )__doc__ functoolsrr.r7typingrrrrZ_elffilerrstrr$ lru_cacher3r:r sysconfig get_platformplat startswithAssertionErrorprintr%subsplittrrrrs(     "