本文整理汇总了Python中mic.utils.misc.get_file_size函数的典型用法代码示例。如果您正苦于以下问题：Python get_file_size函数的具体用法？Python get_file_size怎么用？Python get_file_size使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了get_file_size函数的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: do_unpack
def do_unpack(cls, srcimg):
srcimgsize = (misc.get_file_size(srcimg)) * 1024L * 1024L
srcmnt = misc.mkdtemp("srcmnt")
disk = fs_related.SparseLoopbackDisk(srcimg, srcimgsize)
srcloop = PartitionedMount(srcmnt, skipformat = True)
srcloop.add_disk('/dev/sdb', disk)
srcloop.add_partition(srcimgsize/1024/1024, "/dev/sdb", "/", "ext3", boot=False)
try:
srcloop.mount()
except errors.MountError:
srcloop.cleanup()
raise
image = os.path.join(tempfile.mkdtemp(dir = "/var/tmp", prefix = "tmp"), "target.img")
args = ['dd', "if=%s" % srcloop.partitions[0]['device'], "of=%s" % image]
msger.info("`dd` image ...")
rc = runner.show(args)
srcloop.cleanup()
shutil.rmtree(os.path.dirname(srcmnt), ignore_errors = True)
if rc != 0:
raise errors.CreatorError("Failed to dd")
else:
return image示例2: do_chroot
def do_chroot(cls, target):#chroot.py parse opts&args
img = target
imgsize = misc.get_file_size(img) * 1024L * 1024L
imgtype = misc.get_image_type(img)
if imgtype == "btrfsimg":
fstype = "btrfs"
myDiskMount = fs_related.BtrfsDiskMount
elif imgtype in ("ext3fsimg", "ext4fsimg"):
fstype = imgtype[:4]
myDiskMount = fs_related.ExtDiskMount
else:
raise errors.CreatorError("Unsupported filesystem type: %s" % imgtype)
extmnt = misc.mkdtemp()
extloop = myDiskMount(fs_related.SparseLoopbackDisk(img, imgsize),
extmnt,
fstype,
4096,
"%s label" % fstype)
try:
extloop.mount()
except errors.MountError:
extloop.cleanup()
shutil.rmtree(extmnt, ignore_errors = True)
raise
try:
chroot.chroot(extmnt, None, "/bin/env HOME=/root /bin/bash")
except:
raise errors.CreatorError("Failed to chroot to %s." %img)
finally:
chroot.cleanup_after_chroot("img", extloop, None, extmnt)示例3: _mount_instroot
def _mount_instroot(self, base_on=None):
if base_on and os.path.isfile(base_on):
self.__imgdir = os.path.dirname(base_on)
imgname = os.path.basename(base_on)
self._base_on(base_on)
self._set_image_size(misc.get_file_size(self._image))
# here, self._instloops must be []
self._instloops.append({
"mountpoint": "/",
"label": self.name,
"name": imgname,
"size": self.__image_size or 4096L,
"fstype": self.__fstype or "ext3",
"extopts": None,
"loop": None
})
self._check_imgdir()
for loop in self._instloops:
fstype = loop['fstype']
mp = os.path.join(self._instroot, loop['mountpoint'].lstrip('/'))
size = loop['size'] * 1024L * 1024L
imgname = loop['name']
if fstype in ("ext2", "ext3", "ext4"):
MyDiskMount = fs.ExtDiskMount
elif fstype == "btrfs":
MyDiskMount = fs.BtrfsDiskMount
elif fstype in ("vfat", "msdos"):
MyDiskMount = fs.VfatDiskMount
else:
msger.error('Cannot support fstype: %s' % fstype)
loop['loop'] = MyDiskMount(fs.SparseLoopbackDisk(
os.path.join(self.__imgdir, imgname),
size),
mp,
fstype,
self._blocksize,
loop['label'])
if fstype in ("ext2", "ext3", "ext4"):
loop['loop'].extopts = loop['extopts']
try:
msger.verbose('Mounting image "%s" on "%s"' % (imgname, mp))
fs.makedirs(mp)
loop['loop'].mount()
except MountError, e:
raise示例4: do_chroot
def do_chroot(cls, target, cmd=[]):
if target.endswith('.tar'):
import tarfile
if tarfile.is_tarfile(target):
LoopPlugin._do_chroot_tar(target, cmd)
return
else:
raise errors.CreatorError("damaged tarball for loop images")
img = target
imgsize = misc.get_file_size(img) * 1024L * 1024L
imgtype = misc.get_image_type(img)
if imgtype == "btrfsimg":
fstype = "btrfs"
myDiskMount = fs_related.BtrfsDiskMount
elif imgtype in ("ext3fsimg", "ext4fsimg"):
fstype = imgtype[:4]
myDiskMount = fs_related.ExtDiskMount
else:
raise errors.CreatorError("Unsupported filesystem type: %s" \
% imgtype)
extmnt = misc.mkdtemp()
extloop = myDiskMount(fs_related.SparseLoopbackDisk(img, imgsize),
extmnt,
fstype,
4096,
"%s label" % fstype)
try:
extloop.mount()
except errors.MountError:
extloop.cleanup()
shutil.rmtree(extmnt, ignore_errors=True)
raise
try:
if len(cmd) != 0:
cmdline = ' '.join(cmd)
else:
cmdline = "/bin/bash"
envcmd = fs_related.find_binary_inchroot("env", extmnt)
if envcmd:
cmdline = "%s HOME=/root %s" % (envcmd, cmdline)
chroot.chroot(extmnt, None, cmdline)
except:
raise errors.CreatorError("Failed to chroot to %s." % img)
finally:
chroot.cleanup_after_chroot("img", extloop, None, extmnt)示例5: do_unpack
def do_unpack(cls, srcimg):
img = srcimg
imgsize = misc.get_file_size(img) * 1024L * 1024L
imgmnt = misc.mkdtemp()
disk = fs_related.SparseLoopbackDisk(img, imgsize)
imgloop = PartitionedMount(imgmnt, skipformat = True)
imgloop.add_disk('/dev/sdb', disk)
imgloop.add_partition(imgsize/1024/1024, "/dev/sdb", "/", "vfat", boot=False)
try:
imgloop.mount()
except errors.MountError:
imgloop.cleanup()
raise
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(imgmnt + "/squashfs.img"):
squashimg = imgmnt + "/squashfs.img"
else:
squashimg = imgmnt + "/LiveOS/squashfs.img"
tmpoutdir = misc.mkdtemp()
# unsquashfs requires outdir mustn't exist
shutil.rmtree(tmpoutdir, ignore_errors = True)
misc.uncompress_squashfs(squashimg, tmpoutdir)
try:
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(tmpoutdir + "/os.img"):
os_image = tmpoutdir + "/os.img"
else:
os_image = tmpoutdir + "/LiveOS/ext3fs.img"
if not os.path.exists(os_image):
raise errors.CreatorError("'%s' is not a valid live CD ISO : neither "
"LiveOS/ext3fs.img nor os.img exist" %img)
imgname = os.path.basename(srcimg)
imgname = os.path.splitext(imgname)[0] + ".img"
rtimage = os.path.join(tempfile.mkdtemp(dir = "/var/tmp", prefix = "tmp"), imgname)
shutil.copyfile(os_image, rtimage)
finally:
imgloop.cleanup()
shutil.rmtree(tmpoutdir, ignore_errors = True)
shutil.rmtree(imgmnt, ignore_errors = True)
return rtimage示例6: do_chroot
def do_chroot(cls, target, cmd=[]):
os_image = cls.do_unpack(target)
os_image_dir = os.path.dirname(os_image)
# unpack image to target dir
imgsize = misc.get_file_size(os_image) * 1024L * 1024L
imgtype = misc.get_image_type(os_image)
if imgtype == "btrfsimg":
fstype = "btrfs"
myDiskMount = fs_related.BtrfsDiskMount
elif imgtype in ("ext3fsimg", "ext4fsimg"):
fstype = imgtype[:4]
myDiskMount = fs_related.ExtDiskMount
else:
raise errors.CreatorError("Unsupported filesystem type: %s" % fstype)
extmnt = misc.mkdtemp()
extloop = myDiskMount(fs_related.SparseLoopbackDisk(os_image, imgsize),
extmnt,
fstype,
4096,
"%s label" % fstype)
try:
extloop.mount()
except errors.MountError:
extloop.cleanup()
shutil.rmtree(extmnt, ignore_errors = True)
shutil.rmtree(os_image_dir, ignore_errors = True)
raise
try:
if len(cmd) != 0:
cmdline = ' '.join(cmd)
else:
cmdline = "/bin/bash"
envcmd = fs_related.find_binary_inchroot("env", extmnt)
if envcmd:
cmdline = "%s HOME=/root %s" % (envcmd, cmdline)
chroot.chroot(extmnt, None, cmdline)
except:
raise errors.CreatorError("Failed to chroot to %s." %target)
finally:
chroot.cleanup_after_chroot("img", extloop, os_image_dir, extmnt)示例7: _create_usbimg
def _create_usbimg(self, isodir):
overlaysizemb = 64 #default
#skipcompress = self.skip_compression?
fstype = "vfat"
homesizemb=0
swapsizemb=0
homefile="home.img"
plussize=128
kernelargs=None
if fstype == 'vfat':
if overlaysizemb > 2047:
raise CreatorError("Can't have an overlay of 2048MB or "
"greater on VFAT")
if homesizemb > 2047:
raise CreatorError("Can't have an home overlay of 2048MB or "
"greater on VFAT")
if swapsizemb > 2047:
raise CreatorError("Can't have an swap overlay of 2048MB or "
"greater on VFAT")
livesize = misc.get_file_size(isodir + "/LiveOS")
usbimgsize = (overlaysizemb + \
homesizemb + \
swapsizemb + \
livesize + \
plussize) * 1024L * 1024L
disk = fs_related.SparseLoopbackDisk("%s/%s.usbimg" \
% (self._outdir, self.name),
usbimgsize)
usbmnt = self._mkdtemp("usb-mnt")
usbloop = PartitionedMount(usbmnt)
usbloop.add_disk('/dev/sdb', disk)
usbloop.add_partition(usbimgsize/1024/1024,
"/dev/sdb",
"/",
fstype,
boot=True)
usbloop.mount()
try:
fs_related.makedirs(usbmnt + "/LiveOS")
if os.path.exists(isodir + "/LiveOS/squashfs.img"):
shutil.copyfile(isodir + "/LiveOS/squashfs.img",
usbmnt + "/LiveOS/squashfs.img")
else:
fs_related.mksquashfs(os.path.dirname(self._image),
usbmnt + "/LiveOS/squashfs.img")
if os.path.exists(isodir + "/LiveOS/osmin.img"):
shutil.copyfile(isodir + "/LiveOS/osmin.img",
usbmnt + "/LiveOS/osmin.img")
if fstype == "vfat" or fstype == "msdos":
uuid = usbloop.partitions[0]['mount'].uuid
label = usbloop.partitions[0]['mount'].fslabel
usblabel = "UUID=%s-%s" % (uuid[0:4], uuid[4:8])
overlaysuffix = "-%s-%s-%s" % (label, uuid[0:4], uuid[4:8])
else:
diskmount = usbloop.partitions[0]['mount']
usblabel = "UUID=%s" % diskmount.uuid
overlaysuffix = "-%s-%s" % (diskmount.fslabel, diskmount.uuid)
args = ['cp', "-Rf", isodir + "/isolinux", usbmnt + "/syslinux"]
rc = runner.show(args)
if rc:
raise CreatorError("Can't copy isolinux directory %s" \
% (isodir + "/isolinux/*"))
if os.path.isfile("/usr/share/syslinux/isolinux.bin"):
syslinux_path = "/usr/share/syslinux"
elif os.path.isfile("/usr/lib/syslinux/isolinux.bin"):
syslinux_path = "/usr/lib/syslinux"
else:
raise CreatorError("syslinux not installed : "
"cannot find syslinux installation path")
for f in ("isolinux.bin", "vesamenu.c32"):
path = os.path.join(syslinux_path, f)
if os.path.isfile(path):
args = ['cp', path, usbmnt + "/syslinux/"]
rc = runner.show(args)
if rc:
raise CreatorError("Can't copy syslinux file " + path)
else:
raise CreatorError("syslinux not installed: "
"syslinux file %s not found" % path)
fd = open(isodir + "/isolinux/isolinux.cfg", "r")
text = fd.read()
fd.close()
pattern = re.compile('CDLABEL=[^ ]*')
text = pattern.sub(usblabel, text)
#.........这里部分代码省略.........
示例8: do_chroot
def do_chroot(cls, target, cmd=[]):
img = target
imgsize = misc.get_file_size(img) * 1024L * 1024L
partedcmd = fs_related.find_binary_path("parted")
disk = fs_related.SparseLoopbackDisk(img, imgsize)
imgmnt = misc.mkdtemp()
imgloop = PartitionedMount(imgmnt, skipformat = True)
imgloop.add_disk('/dev/sdb', disk)
img_fstype = "ext3"
msger.info("Partition Table:")
partnum = []
for line in runner.outs([partedcmd, "-s", img, "print"]).splitlines():
# no use strip to keep line output here
if "Number" in line:
msger.raw(line)
if line.strip() and line.strip()[0].isdigit():
partnum.append(line.strip()[0])
msger.raw(line)
rootpart = None
if len(partnum) > 1:
rootpart = msger.choice("please choose root partition", partnum)
# Check the partitions from raw disk.
# if choose root part, the mark it as mounted
if rootpart:
root_mounted = True
else:
root_mounted = False
partition_mounts = 0
for line in runner.outs([partedcmd,"-s",img,"unit","B","print"]).splitlines():
line = line.strip()
# Lines that start with number are the partitions,
# because parted can be translated we can't refer to any text lines.
if not line or not line[0].isdigit():
continue
# Some vars have extra , as list seperator.
line = line.replace(",","")
# Example of parted output lines that are handled:
# Number Start End Size Type File system Flags
# 1 512B 3400000511B 3400000000B primary
# 2 3400531968B 3656384511B 255852544B primary linux-swap(v1)
# 3 3656384512B 3720347647B 63963136B primary fat16 boot, lba
partition_info = re.split("\s+",line)
size = partition_info[3].split("B")[0]
if len(partition_info) < 6 or partition_info[5] in ["boot"]:
# No filesystem can be found from partition line. Assuming
# btrfs, because that is the only MeeGo fs that parted does
# not recognize properly.
# TODO: Can we make better assumption?
fstype = "btrfs"
elif partition_info[5] in ["ext2","ext3","ext4","btrfs"]:
fstype = partition_info[5]
elif partition_info[5] in ["fat16","fat32"]:
fstype = "vfat"
elif "swap" in partition_info[5]:
fstype = "swap"
else:
raise errors.CreatorError("Could not recognize partition fs type '%s'." % partition_info[5])
if rootpart and rootpart == line[0]:
mountpoint = '/'
elif not root_mounted and fstype in ["ext2","ext3","ext4","btrfs"]:
# TODO: Check that this is actually the valid root partition from /etc/fstab
mountpoint = "/"
root_mounted = True
elif fstype == "swap":
mountpoint = "swap"
else:
# TODO: Assing better mount points for the rest of the partitions.
partition_mounts += 1
mountpoint = "/media/partition_%d" % partition_mounts
if "boot" in partition_info:
boot = True
else:
boot = False
msger.verbose("Size: %s Bytes, fstype: %s, mountpoint: %s, boot: %s" % (size, fstype, mountpoint, boot))
# TODO: add_partition should take bytes as size parameter.
imgloop.add_partition((int)(size)/1024/1024, "/dev/sdb", mountpoint, fstype = fstype, boot = boot)
try:
imgloop.mount()
except errors.MountError:
imgloop.cleanup()
raise
try:
if len(cmd) != 0:
cmdline = ' '.join(cmd)
else:
#.........这里部分代码省略.........