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restore CalledProcessError handling 

When I switched execution over to execWith* functions I failed to
account for the use of CalledProcessError in various places. This
patch restores that behavior. All places that used check_call or
check_output now pass raise_err=True to the execWith* call.
This commit is contained in:
Brian C. Lane 2012-08-22 11:09:37 -07:00
parent 381c4276ba
commit 12ad7d0d99
5 changed files with 23 additions and 27 deletions
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2
src/pylorax/__init__.py
View File

@ -141,7 +141,7 @@ class Lorax(BaseLoraxClass):
if domacboot:
try:
execWithRedirect("rpm", ["-q", "hfsplus-tools"])
execWithRedirect("rpm", ["-q", "hfsplus-tools"], raise_err=True)
except CalledProcessError:
logger.critical("you need to install hfsplus-tools to create mac images")
sys.exit(1)

30
src/pylorax/imgutils.py
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@ -69,7 +69,7 @@ def mksparse(outfile, size):
def loop_attach(outfile):
'''Attach a loop device to the given file. Return the loop device name.
Raises CalledProcessError if losetup fails.'''
dev = execWithCapture("losetup", ["--find", "--show", outfile])
dev = execWithCapture("losetup", ["--find", "--show", outfile], raise_err=True)
return dev.strip()
def loop_detach(loopdev):
@ -79,7 +79,7 @@ def loop_detach(loopdev):
def get_loop_name(path):
'''Return the loop device associated with the path.
Raises RuntimeError if more than one loop is associated'''
buf = execWithCapture("losetup", ["-j", path])
buf = execWithCapture("losetup", ["-j", path], raise_err=True)
if len(buf.splitlines()) > 1:
# there should never be more than one loop device listed
raise RuntimeError("multiple loops associated with %s" % path)
@ -93,7 +93,7 @@ def dm_attach(dev, size, name=None):
if name is None:
name = tempfile.mktemp(prefix="lorax.imgutils.", dir="")
execWithRedirect("dmsetup", ["create", name, "--table",
"0 %i linear %s 0" % (size/512, dev)])
"0 %i linear %s 0" % (size/512, dev)], raise_err=True)
return name
def dm_detach(dev):
@ -114,7 +114,7 @@ def mount(dev, opts="", mnt=None):
if opts:
mount += ["-o", opts]
mount += [dev, mnt]
execWithRedirect(mount[0], mount[1:])
execWithRedirect(mount[0], mount[1:], raise_err=True)
return mnt
def umount(mnt, lazy=False, maxretry=3, retrysleep=1.0):
@ -127,18 +127,13 @@ def umount(mnt, lazy=False, maxretry=3, retrysleep=1.0):
count = 0
while maxretry > 0:
try:
rv = execWithRedirect(umount[0], umount[1:])
except Exception:
# execWithRedirect will log what the errors was, so we can just
# ignore it and retry.
pass
if rv != 0:
rv = execWithRedirect(umount[0], umount[1:], raise_err=True)
except CalledProcessError:
count += 1
if count == maxretry:
raise
logger.warn("failed to unmount %s. retrying (%d/%d)...",
mnt, count, maxretry)
logger.warn("failed to unmount %s (%d). retrying (%d/%d)...",
mnt, rv, count, maxretry)
if logger.getEffectiveLevel() <= logging.DEBUG:
fuser = execWithCapture("fuser", ["-vm", mnt])
logger.debug("fuser -vm:\n%s\n", fuser)
@ -153,11 +148,12 @@ def umount(mnt, lazy=False, maxretry=3, retrysleep=1.0):
def copytree(src, dest, preserve=True):
'''Copy a tree of files using cp -a, thus preserving modes, timestamps,
links, acls, sparse files, xattrs, selinux contexts, etc.
If preserve is False, uses cp -R (useful for modeless filesystems)'''
If preserve is False, uses cp -R (useful for modeless filesystems)
raises CalledProcessError if copy fails.'''
logger.debug("copytree %s %s", src, dest)
cp = ["cp", "-a"] if preserve else ["cp", "-R", "-L"]
cp += [".", os.path.abspath(dest)]
execWithRedirect(cp[0], cp[1:], cwd=src)
execWithRedirect(cp[0], cp[1:], cwd=src, raise_err=True)
def do_grafts(grafts, dest, preserve=True):
'''Copy each of the items listed in grafts into dest.
@ -256,7 +252,7 @@ class PartitionMount(object):
# kpartx -p p -v -a /tmp/diskV2DiCW.im
# add map loop2p1 (253:2): 0 3481600 linear /dev/loop2 2048
# add map loop2p2 (253:3): 0 614400 linear /dev/loop2 3483648
kpartx_output = execWithCapture("kpartx", ["-v", "-p", "p", "-a", self.disk_img])
kpartx_output = execWithCapture("kpartx", ["-v", "-p", "p", "-a", self.disk_img], raise_err=True)
logger.debug(kpartx_output)
# list of (deviceName, sizeInBytes)
@ -310,7 +306,7 @@ def mkfsimage(fstype, rootdir, outfile, size=None, mkfsargs=[], mountargs="", gr
size = estimate_size(rootdir, graft, fstype)
with LoopDev(outfile, size) as loopdev:
try:
execWithRedirect("mkfs.%s" % fstype, mkfsargs + [loopdev])
execWithRedirect("mkfs.%s" % fstype, mkfsargs + [loopdev], raise_err=True)
except CalledProcessError as e:
logger.error("mkfs exited with a non-zero return code: %d" % e.returncode)
logger.error(e.output)

6
src/pylorax/ltmpl.py
View File

@ -372,7 +372,7 @@ class LoraxTemplateRunner(object):
cmd = ["gconftool-2", "--direct",
"--config-source=xml:readwrite:%s" % outfile,
"--set", "--type", keytype, path, value]
execWithRedirect(cmd[0], cmd[1:])
execWithRedirect(cmd[0], cmd[1:], raise_err=True)
def log(self, msg):
'''
@ -414,7 +414,7 @@ class LoraxTemplateRunner(object):
cmd = cmd[1:]
try:
output = execWithCapture(cmd[0], cmd[1:], cwd=cwd)
output = execWithCapture(cmd[0], cmd[1:], cwd=cwd, raise_err=True)
if output:
logger.debug('command output:\n%s', output)
logger.debug("command finished successfully")
@ -552,6 +552,6 @@ class LoraxTemplateRunner(object):
# XXX for some reason 'systemctl enable/disable' always returns 1
try:
cmd = systemctl + units
execWithRedirect(cmd[0], cmd[1:])
execWithRedirect(cmd[0], cmd[1:], raise_err=True)
except CalledProcessError:
pass

2
src/pylorax/sysutils.py
View File

@ -106,5 +106,5 @@ def remove(target):
os.unlink(target)
def linktree(src, dst):
execWithRedirect("/bin/cp", ["-al", src, dst])
execWithRedirect("/bin/cp", ["-al", src, dst], raise_err=True)

10
src/pylorax/treebuilder.py
View File

@ -45,7 +45,7 @@ templatemap = {
def generate_module_info(moddir, outfile=None):
def module_desc(mod):
output = execWithCapture("modinfo", ["-F", "description", mod])
output = execWithCapture("modinfo", ["-F", "description", mod], raise_err=True)
return output.strip()
def read_module_set(name):
return set(l.strip() for l in open(joinpaths(moddir,name)) if ".ko" in l)
@ -149,7 +149,7 @@ class RuntimeBuilder(object):
for kver in os.listdir(moddir):
ksyms = joinpaths(root, "boot/System.map-%s" % kver)
logger.info("doing depmod and module-info for %s", kver)
execWithRedirect("depmod", ["-a", "-F", ksyms, "-b", root, kver])
execWithRedirect("depmod", ["-a", "-F", ksyms, "-b", root, kver], raise_err=True)
generate_module_info(moddir+kver, outfile=moddir+"module-info")
def create_runtime(self, outfile="/tmp/squashfs.img", compression="xz", compressargs=[], size=1):
@ -167,7 +167,7 @@ class RuntimeBuilder(object):
with imgutils.LoopDev( joinpaths(workdir, "LiveOS/rootfs.img") ) as loopdev:
with imgutils.Mount(loopdev) as mnt:
cmd = [ "setfiles", "-e", "/proc", "-e", "/sys", "-e", "/dev", "-e", "/selinux", "/etc/selinux/targeted/contexts/files/file_contexts", "/"]
execWithRedirect(cmd[0], cmd[1:], root=mnt)
execWithRedirect(cmd[0], cmd[1:], root=mnt, raise_err=True)
# squash the live rootfs and clean up workdir
imgutils.mksquashfs(workdir, outfile, compression, compressargs)
@ -208,7 +208,7 @@ class TreeBuilder(object):
initrd = joinpaths(self.vars.inroot, kernel.initrd.path)
os.rename(initrd, initrd + backup)
cmd = dracut + [kernel.initrd.path, kernel.version]
execWithRedirect(cmd[0], cmd[1:], root=self.vars.inroot)
execWithRedirect(cmd[0], cmd[1:], root=self.vars.inroot, raise_err=True)
os.unlink(joinpaths(self.vars.inroot,"/proc/modules"))
def build(self):
@ -221,7 +221,7 @@ class TreeBuilder(object):
for section, data in self.treeinfo_data.items():
if 'boot.iso' in data:
iso = joinpaths(self.vars.outroot, data['boot.iso'])
execWithRedirect("implantisomd5", [iso])
execWithRedirect("implantisomd5", [iso], raise_err=True)
@property
def dracut_hooks_path(self):