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runqemu: Ensure we cleanup snapshot files after image run

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We need to cleanup snapshot files if we make a copy of them to ensure
the tmpfs doesn't run out of space. There is already NFS code needing
this so make it a generic code path.

(From OE-Core rev: a3e0eec5a4785a0c4859455eb10b43aa832e606d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie 2021-04-22 10:54:49 +01:00
parent 6f7bc9e4af
commit d5eb86b3aa
1 changed files with 12 additions and 6 deletions
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18
scripts/runqemu
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@ -145,7 +145,6 @@ class BaseConfig(object):
self.qemu_opt = ''
self.qemu_opt_script = ''
self.qemuparams = ''
self.clean_nfs_dir = False
self.nfs_server = ''
self.rootfs = ''
# File name(s) of a OVMF firmware file or variable store,
@ -210,6 +209,8 @@ class BaseConfig(object):
self.qemupid = None
# avoid cleanup twice
self.cleaned = False
# Files to cleanup after run
self.cleanup_files = []
def acquire_taplock(self, error=True):
logger.debug("Acquiring lockfile %s..." % self.taplock)
@ -1020,8 +1021,9 @@ class BaseConfig(object):
logger.info('Running %s...' % str(cmd))
if subprocess.call(cmd) != 0:
raise RunQemuError('Failed to run %s' % cmd)
self.clean_nfs_dir = True
self.rootfs = dest
self.cleanup_files.append(self.rootfs)
self.cleanup_files.append('%s.pseudo_state' % self.rootfs)
# Start the userspace NFS server
cmd = ('runqemu-export-rootfs', 'start', self.rootfs)
@ -1204,6 +1206,7 @@ class BaseConfig(object):
self.rootfs = newrootfs
# Don't need a second copy now!
self.snapshot = False
self.cleanup_files.append(newrootfs)
qb_rootfs_opt = self.get('QB_ROOTFS_OPT')
if qb_rootfs_opt:
@ -1476,10 +1479,13 @@ class BaseConfig(object):
if self.saved_stty:
subprocess.check_call(("stty", self.saved_stty))
if self.clean_nfs_dir:
logger.info('Removing %s' % self.rootfs)
shutil.rmtree(self.rootfs)
shutil.rmtree('%s.pseudo_state' % self.rootfs)
if self.cleanup_files:
for ent in self.cleanup_files:
logger.info('Removing %s' % ent)
if os.path.isfile(ent):
os.remove(ent)
else:
shutil.rmtree(ent)
self.cleaned = True