Files
poky/meta/classes/fs-uuid.bbclass
Joshua Lock c4e2c59088 meta: remove True option to getVar calls
getVar() now defaults to expanding by default, thus remove the True
option from getVar() calls with a regex search and replace.

Search made with the following regex: getVar ?\(( ?[^,()]*), True\)

(From OE-Core rev: 7c552996597faaee2fbee185b250c0ee30ea3b5f)

Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-12-16 10:23:23 +00:00

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# Extract UUID from ${ROOTFS}, which must have been built
# by the time that this function gets called. Only works
# on ext file systems and depends on tune2fs.
def get_rootfs_uuid(d):
import subprocess
rootfs = d.getVar('ROOTFS')
output = subprocess.check_output(['tune2fs', '-l', rootfs])
for line in output.split('\n'):
if line.startswith('Filesystem UUID:'):
uuid = line.split()[-1]
bb.note('UUID of %s: %s' % (rootfs, uuid))
return uuid
bb.fatal('Could not determine filesystem UUID of %s' % rootfs)
# Replace the special <<uuid-of-rootfs>> inside a string (like the
# root= APPEND string in a syslinux.cfg or gummiboot entry) with the
# actual UUID of the rootfs. Does nothing if the special string
# is not used.
def replace_rootfs_uuid(d, string):
UUID_PLACEHOLDER = '<<uuid-of-rootfs>>'
if UUID_PLACEHOLDER in string:
uuid = get_rootfs_uuid(d)
string = string.replace(UUID_PLACEHOLDER, uuid)
return string