def squash_tarcmd_reverse(self, imagedir=None):
if not imagedir:
imagedir = self.tmpdir
rootfsdir = imagedir + "/rootfs"
if os.path.exists(imagedir + "/squashed.tar"):
return (True)
if not self.anchore_layers:
return (False)
if not os.path.exists(rootfsdir):
os.makedirs(rootfsdir)
revlayer = list(self.anchore_layers)
revlayer.reverse()
excludesfile = '/'.join([imagedir, 'tarexcludes'])
anchore_utils.touch_file(excludesfile)
#open(excludesfile, 'w').close()
for l in revlayer:
layertar = imagedir + "/" + l + "/layer.tar"
self._logger.debug("layer to squash: " + layertar)
# washere
tarcmd = ["tar", "-C", rootfsdir, "-t", "-f", layertar]
self._logger.debug("cmd: " + ' '.join(tarcmd))
allfiles = subprocess.check_output(tarcmd)
with open(excludesfile, 'a') as OFH:
for f in allfiles.splitlines():
if re.match('.*\.wh\..*', f):
fsub = re.sub(r"\.wh\.", "", f)
OFH.write(f + "\n")
OFH.write(fsub + "\n")
tarcmd = ["tar", "-C", rootfsdir, "-X", excludesfile, "-x", "-v", "-f", layertar]
self._logger.debug("cmd: " + ' '.join(tarcmd))
try:
allfiles = subprocess.check_output(tarcmd)
except Exception as err:
self._logger.warn("Warn: Untar of unpacked image layer failed - proceeding but not all files in image are present.")
self._logger.warn("Command: " + ' '.join(tarcmd))
self._logger.warn("Info: " + str(err))
with open(excludesfile, 'a') as OFH:
for f in allfiles.splitlines():
OFH.write(f + "\n")
newfile = excludesfile + "." + l
shutil.copy(excludesfile, newfile)
self._logger.debug("EXCLUDES: " + newfile)
self.squashtar = imagedir + "/squashed.tar"
self.squashed_allfiles = subprocess.check_output(["tar", "-C", rootfsdir, "-c", "-v", "-f", self.squashtar, "."])
return (True)
def squash_tarcmd_reverse(self, imagedir=None):
if not imagedir:
imagedir = self.tmpdir
rootfsdir = imagedir + "/rootfs"
if os.path.exists(imagedir + "/squashed.tar"):
return (True)
if not self.anchore_layers:
return (False)
if not os.path.exists(rootfsdir):
os.makedirs(rootfsdir)
revlayer = list(self.anchore_layers)
revlayer.reverse()
excludesfile = '/'.join([imagedir, 'tarexcludes'])
anchore_utils.touch_file(excludesfile)
for l in revlayer:
layertar = imagedir + "/" + l + "/layer.tar"
self._logger.debug("layer to squash: " + layertar)
tarcmd = ["tar", "-C", rootfsdir, "-t", "-f", layertar]
self._logger.debug("cmd: " + ' '.join(tarcmd))
allfiles = subprocess.check_output(tarcmd)
with open(excludesfile, 'a') as OFH:
for f in allfiles.splitlines():
if re.match('.*\.wh\..*', f):
fsub = re.sub(r"\.wh\.", "", f)
OFH.write(f + "\n")
OFH.write(fsub + "\n")
tarcmd = ["tar", "-C", rootfsdir, "-X", excludesfile, "-x", "-v", "-f", layertar]
self._logger.debug("cmd: " + ' '.join(tarcmd))
try:
allfiles = subprocess.check_output(tarcmd)
except Exception as err:
self._logger.warn("Warn: Untar of unpacked image layer failed - proceeding but not all files in image are present.")
self._logger.warn("Command: " + ' '.join(tarcmd))
self._logger.warn("Info: " + str(err))
with open(excludesfile, 'a') as OFH:
for f in allfiles.splitlines():
OFH.write(f + "\n")
newfile = excludesfile + "." + l
shutil.copy(excludesfile, newfile)
self._logger.debug("EXCLUDES: " + newfile)
self.squashtar = imagedir + "/squashed.tar"
self.squashed_allfiles = subprocess.check_output(["tar", "-C", rootfsdir, "-c", "-v", "-f", self.squashtar, "."])
return (True)