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