diff options
Diffstat (limited to 'scripts/lib/wic/engine.py')
| -rw-r--r-- | scripts/lib/wic/engine.py | 111 |
1 files changed, 81 insertions, 30 deletions
diff --git a/scripts/lib/wic/engine.py b/scripts/lib/wic/engine.py index 61939ad194..018815b966 100644 --- a/scripts/lib/wic/engine.py +++ b/scripts/lib/wic/engine.py @@ -19,6 +19,7 @@ import os import tempfile import json import subprocess +import re from collections import namedtuple, OrderedDict from distutils.spawn import find_executable @@ -279,7 +280,7 @@ class Disk: def __getattr__(self, name): """Get path to the executable in a lazy way.""" if name in ("mdir", "mcopy", "mdel", "mdeltree", "sfdisk", "e2fsck", - "resize2fs", "mkswap", "mkdosfs", "debugfs"): + "resize2fs", "mkswap", "mkdosfs", "debugfs","blkid"): aname = "_%s" % name if aname not in self.__dict__: setattr(self, aname, find_executable(name, self.paths)) @@ -290,7 +291,7 @@ class Disk: def _get_part_image(self, pnum): if pnum not in self.partitions: - raise WicError("Partition %s is not in the image") + raise WicError("Partition %s is not in the image" % pnum) part = self.partitions[pnum] # check if fstype is supported for fstype in self.fstypes: @@ -313,6 +314,9 @@ class Disk: seek=self.partitions[pnum].start) def dir(self, pnum, path): + if pnum not in self.partitions: + raise WicError("Partition %s is not in the image" % pnum) + if self.partitions[pnum].fstype.startswith('ext'): return exec_cmd("{} {} -R 'ls -l {}'".format(self.debugfs, self._get_part_image(pnum), @@ -322,38 +326,80 @@ class Disk: self._get_part_image(pnum), path)) - def copy(self, src, pnum, path): + def copy(self, src, dest): """Copy partition image into wic image.""" + pnum = dest.part if isinstance(src, str) else src.part + if self.partitions[pnum].fstype.startswith('ext'): - cmd = "printf 'cd {}\nwrite {} {}\n' | {} -w {}".\ - format(path, src, os.path.basename(src), + if isinstance(src, str): + cmd = "printf 'cd {}\nwrite {} {}\n' | {} -w {}".\ + format(os.path.dirname(dest.path), src, os.path.basename(src), self.debugfs, self._get_part_image(pnum)) + else: # copy from wic + # run both dump and rdump to support both files and directory + cmd = "printf 'cd {}\ndump /{} {}\nrdump /{} {}\n' | {} {}".\ + format(os.path.dirname(src.path), src.path, + dest, src.path, dest, self.debugfs, + self._get_part_image(pnum)) else: # fat - cmd = "{} -i {} -snop {} ::{}".format(self.mcopy, + if isinstance(src, str): + cmd = "{} -i {} -snop {} ::{}".format(self.mcopy, + self._get_part_image(pnum), + src, dest.path) + else: + cmd = "{} -i {} -snop ::{} {}".format(self.mcopy, self._get_part_image(pnum), - src, path) + src.path, dest) + exec_cmd(cmd, as_shell=True) self._put_part_image(pnum) - def remove(self, pnum, path): + def remove_ext(self, pnum, path, recursive): + """ + Remove files/dirs and their contents from the partition. + This only applies to ext* partition. + """ + abs_path = re.sub('\/\/+', '/', path) + cmd = "{} {} -wR 'rm \"{}\"'".format(self.debugfs, + self._get_part_image(pnum), + abs_path) + out = exec_cmd(cmd , as_shell=True) + for line in out.splitlines(): + if line.startswith("rm:"): + if "file is a directory" in line: + if recursive: + # loop through content and delete them one by one if + # flaged with -r + subdirs = iter(self.dir(pnum, abs_path).splitlines()) + next(subdirs) + for subdir in subdirs: + dir = subdir.split(':')[1].split(" ", 1)[1] + if not dir == "." and not dir == "..": + self.remove_ext(pnum, "%s/%s" % (abs_path, dir), recursive) + + rmdir_out = exec_cmd("{} {} -wR 'rmdir \"{}\"'".format(self.debugfs, + self._get_part_image(pnum), + abs_path.rstrip('/')) + , as_shell=True) + + for rmdir_line in rmdir_out.splitlines(): + if "directory not empty" in rmdir_line: + raise WicError("Could not complete operation: \n%s \n" + "use -r to remove non-empty directory" % rmdir_line) + if rmdir_line.startswith("rmdir:"): + raise WicError("Could not complete operation: \n%s " + "\n%s" % (str(line), rmdir_line)) + + else: + raise WicError("Could not complete operation: \n%s " + "\nUnable to remove %s" % (str(line), abs_path)) + + def remove(self, pnum, path, recursive): """Remove files/dirs from the partition.""" partimg = self._get_part_image(pnum) if self.partitions[pnum].fstype.startswith('ext'): - cmd = "{} {} -wR 'rm {}'".format(self.debugfs, - self._get_part_image(pnum), - path) - out = exec_cmd(cmd , as_shell=True) - for line in out.splitlines(): - if line.startswith("rm:"): - if "file is a directory" in line: - # Try rmdir to see if this is an empty directory. This won't delete - # any non empty directory so let user know about any error that this might - # generate. - print(exec_cmd("{} {} -wR 'rmdir {}'".format(self.debugfs, - self._get_part_image(pnum), - path), as_shell=True)) - else: - raise WicError("Could not complete operation: wic %s" % str(line)) + self.remove_ext(pnum, path, recursive) + else: # fat cmd = "{} -i {} ::{}".format(self.mdel, partimg, path) try: @@ -396,7 +442,7 @@ class Disk: outf.flush() def read_ptable(path): - out = exec_cmd("{} -dJ {}".format(self.sfdisk, path)) + out = exec_cmd("{} -J {}".format(self.sfdisk, path)) return json.loads(out) def write_ptable(parts, target): @@ -497,7 +543,8 @@ class Disk: logger.info("creating swap partition {}".format(pnum)) label = part.get("name") label_str = "-L {}".format(label) if label else '' - uuid = part.get("uuid") + out = exec_cmd("{} --probe {}".format(self.blkid, self._get_part_image(pnum))) + uuid = out[out.index("UUID=\"")+6:out.index("UUID=\"")+42] uuid_str = "-U {}".format(uuid) if uuid else '' with open(partfname, 'w') as sparse: os.ftruncate(sparse.fileno(), part['size'] * self._lsector_size) @@ -523,11 +570,15 @@ def wic_ls(args, native_sysroot): def wic_cp(args, native_sysroot): """ - Copy local file or directory to the vfat partition of + Copy file or directory to/from the vfat/ext partition of partitioned image. """ - disk = Disk(args.dest.image, native_sysroot) - disk.copy(args.src, args.dest.part, args.dest.path) + if isinstance(args.dest, str): + disk = Disk(args.src.image, native_sysroot) + else: + disk = Disk(args.dest.image, native_sysroot) + disk.copy(args.src, args.dest) + def wic_rm(args, native_sysroot): """ @@ -535,13 +586,13 @@ def wic_rm(args, native_sysroot): partitioned image. """ disk = Disk(args.path.image, native_sysroot) - disk.remove(args.path.part, args.path.path) + disk.remove(args.path.part, args.path.path, args.recursive_delete) def wic_write(args, native_sysroot): """ Write image to a target device. """ - disk = Disk(args.image, native_sysroot, ('fat', 'ext', 'swap')) + disk = Disk(args.image, native_sysroot, ('fat', 'ext', 'linux-swap')) disk.write(args.target, args.expand) def find_canned(scripts_path, file_name): |