def _create_ld_so_cache()

in azure-protected-vm-secrets/DynamicSecretsProvisioningLibrary/pySecretsProvisioningLibrary.py [0:0]

• 43 lines of code
• 16 McCabe index (conditional complexity)

    def _create_ld_so_cache(self):
        # Recreate search path followed by ld.so.  This is going to be
        # slow to build, and incorrect (ld.so uses ld.so.cache, which may
        # not be up-to-date).  Used only as fallback for distros without
        # /sbin/ldconfig.
        #
        # We assume the DT_RPATH and DT_RUNPATH binary sections are omitted.

        directories = self._Directories()
        for name in (
            "LD_LIBRARY_PATH",
            "SHLIB_PATH",  # HP-UX
            "LIBPATH",  # OS/2, AIX
            "LIBRARY_PATH",  # BE/OS
        ):
            if name in os.environ:
                directories.extend(os.environ[name].split(os.pathsep))

        self._get_ld_so_conf_dirs("/etc/ld.so.conf", directories)

        bitage = platform.architecture()[0]

        unix_lib_dirs_list = []
        if bitage.startswith("64"):
            # prefer 64 bit if that is our arch
            unix_lib_dirs_list += ["/lib64", "/usr/lib64"]

        # must include standard libs, since those paths are also used by 64 bit
        # installs
        unix_lib_dirs_list += ["/lib", "/usr/lib"]
        if sys.platform.startswith("linux"):
            # Try and support multiarch work in Ubuntu
            # https://wiki.ubuntu.com/MultiarchSpec
            if bitage.startswith("32"):
                # Assume Intel/AMD x86 compat
                unix_lib_dirs_list += ["/lib/i386-linux-gnu", "/usr/lib/i386-linux-gnu"]
            elif bitage.startswith("64"):
                # Assume Intel/AMD x86 compatible
                unix_lib_dirs_list += [
                    "/lib/x86_64-linux-gnu",
                    "/usr/lib/x86_64-linux-gnu",
                ]
            else:
                # guess...
                unix_lib_dirs_list += glob.glob("/lib/*linux-gnu")
        directories.extend(unix_lib_dirs_list)

        cache = {}
        lib_re = re.compile(r"lib(.*)\.s[ol]")
        # ext_re = re.compile(r"\.s[ol]$")
        for our_dir in directories.ordered():
            try:
                for path in glob.glob("%s/*.s[ol]*" % our_dir):
                    file = os.path.basename(path)

                    # Index by filename
                    cache_i = cache.setdefault(file, set())
                    cache_i.add(path)

                    # Index by library name
                    match = lib_re.match(file)
                    if match:
                        library = match.group(1)
                        cache_i = cache.setdefault(library, set())
                        cache_i.add(path)
            except OSError:
                pass

        self._ld_so_cache = cache