def findFirstIsoImage(path): """ Find the first iso image in path This also supports specifying a specific .iso image Returns the basename of the image """ try: os.stat(path) except OSError: return None arch = _arch mount_path = "/mnt/install/cdimage" discinfo_path = os.path.join(mount_path, ".discinfo") if os.path.isfile(path) and path.endswith(".iso"): files = [os.path.basename(path)] path = os.path.dirname(path) else: files = os.listdir(path) for fn in files: what = os.path.join(path, fn) log.debug("Checking %s", what) if not isys.isIsoImage(what): continue log.debug("mounting %s on %s", what, mount_path) try: blivet.util.mount(what, mount_path, fstype="iso9660", options="ro") except OSError: continue if not os.access(discinfo_path, os.R_OK): blivet.util.umount(mount_path) continue log.debug("Reading .discinfo") disc_info = DiscInfo() try: disc_info.load(discinfo_path) disc_arch = disc_info.arch except Exception as ex: # pylint: disable=broad-except log.warning(".discinfo file can't be loaded: %s", ex) continue log.debug("discArch = %s", disc_arch) if disc_arch != arch: log.warning("findFirstIsoImage: architectures mismatch: %s, %s", disc_arch, arch) blivet.util.umount(mount_path) continue # If there's no repodata, there's no point in trying to # install from it. if not _check_repodata(mount_path): log.warning("%s doesn't have a valid repodata, skipping", what) blivet.util.umount(mount_path) continue # warn user if images appears to be wrong size if os.stat(what)[stat.ST_SIZE] % 2048: log.warning("%s appears to be corrupted", what) exn = InvalidImageSizeError("size is not a multiple of 2048 bytes", what) if errorHandler.cb(exn) == ERROR_RAISE: raise exn log.info("Found disc at %s", fn) blivet.util.umount(mount_path) return fn return None
def findFirstIsoImage(path): """ Find the first iso image in path This also supports specifying a specific .iso image Returns the basename of the image """ try: os.stat(path) except OSError: return None arch = _arch if os.path.isfile(path) and path.endswith(".iso"): files = [os.path.basename(path)] path = os.path.dirname(path) else: files = os.listdir(path) for fn in files: what = path + '/' + fn log.debug("Checking %s", what) if not isys.isIsoImage(what): continue log.debug("mounting %s on /mnt/install/cdimage", what) try: blivet.util.mount(what, "/mnt/install/cdimage", fstype="iso9660", options="ro") except OSError: continue if not os.access("/mnt/install/cdimage/.discinfo", os.R_OK): blivet.util.umount("/mnt/install/cdimage") continue log.debug("Reading .discinfo") f = open("/mnt/install/cdimage/.discinfo") f.readline() # skip timestamp f.readline() # skip release description discArch = f.readline().strip() # read architecture f.close() log.debug("discArch = %s", discArch) if discArch != arch: log.warning("findFirstIsoImage: architectures mismatch: %s, %s", discArch, arch) blivet.util.umount("/mnt/install/cdimage") continue # If there's no repodata, there's no point in trying to # install from it. if not os.access("/mnt/install/cdimage/repodata", os.R_OK): log.warning("%s doesn't have repodata, skipping", what) blivet.util.umount("/mnt/install/cdimage") continue # warn user if images appears to be wrong size if os.stat(what)[stat.ST_SIZE] % 2048: log.warning("%s appears to be corrupted", what) exn = InvalidImageSizeError("size is not a multiple of 2048 bytes", what) if errorHandler.cb(exn) == ERROR_RAISE: raise exn log.info("Found disc at %s", fn) blivet.util.umount("/mnt/install/cdimage") return fn return None
def find_first_iso_image(path, mount_path="/mnt/install/cdimage"): """Find the first iso image in path. :param str path: path to the directory with iso image(s); this also supports pointing to a specific .iso image :param str mount_path: path for mounting the ISO when checking it is valid FIXME once payloads are modularized: - this should move somewhere else - mount_path should lose the legacy default :return: basename of the image - file name without path :rtype: str or None """ try: os.stat(path) except OSError: return None arch = _arch discinfo_path = os.path.join(mount_path, ".discinfo") if os.path.isfile(path) and path.endswith(".iso"): files = [os.path.basename(path)] path = os.path.dirname(path) else: files = os.listdir(path) for fn in files: what = os.path.join(path, fn) log.debug("Checking %s", what) if not isys.isIsoImage(what): continue log.debug("Mounting %s on %s", what, mount_path) try: blivet.util.mount(what, mount_path, fstype="iso9660", options="ro") except OSError: continue if not os.access(discinfo_path, os.R_OK): blivet.util.umount(mount_path) continue log.debug("Reading .discinfo") disc_info = DiscInfo() # TODO replace next 2 blocks with: # pyanaconda.modules.payloads.source.utils.is_valid_install_disk try: disc_info.load(discinfo_path) disc_arch = disc_info.arch except Exception as ex: # pylint: disable=broad-except log.warning(".discinfo file can't be loaded: %s", ex) continue log.debug("discArch = %s", disc_arch) if disc_arch != arch: log.warning("Architectures mismatch in find_first_iso_image: %s != %s", disc_arch, arch) blivet.util.umount(mount_path) continue # If there's no repodata, there's no point in trying to # install from it. if not _check_repodata(mount_path): log.warning("%s doesn't have a valid repodata, skipping", what) blivet.util.umount(mount_path) continue # warn user if images appears to be wrong size if os.stat(what)[stat.ST_SIZE] % 2048: log.warning("%s appears to be corrupted", what) exn = InvalidImageSizeError("size is not a multiple of 2048 bytes", what) if errorHandler.cb(exn) == ERROR_RAISE: raise exn log.info("Found disc at %s", fn) blivet.util.umount(mount_path) return fn return None