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-rw-r--r--scripts/lib/wic/ksparser.py41
1 files changed, 37 insertions, 4 deletions
diff --git a/scripts/lib/wic/ksparser.py b/scripts/lib/wic/ksparser.py
index 0894e2b199..62c490274a 100644
--- a/scripts/lib/wic/ksparser.py
+++ b/scripts/lib/wic/ksparser.py
@@ -113,6 +113,9 @@ def systemidtype(arg):
class KickStart():
""""Kickstart parser implementation."""
+ DEFAULT_EXTRA_SPACE = 10*1024
+ DEFAULT_OVERHEAD_FACTOR = 1.3
+
def __init__(self, confpath):
self.partitions = []
@@ -127,16 +130,24 @@ class KickStart():
part.add_argument('mountpoint', nargs='?')
part.add_argument('--active', action='store_true')
part.add_argument('--align', type=int)
- part.add_argument("--extra-space", type=sizetype, default=10*1024)
+ part.add_argument("--extra-space", type=sizetype)
part.add_argument('--fsoptions', dest='fsopts')
part.add_argument('--fstype')
part.add_argument('--label')
part.add_argument('--no-table', action='store_true')
part.add_argument('--ondisk', '--ondrive', dest='disk')
- part.add_argument("--overhead-factor", type=overheadtype, default=1.3)
+ part.add_argument("--overhead-factor", type=overheadtype)
part.add_argument('--part-type')
part.add_argument('--rootfs-dir')
- part.add_argument('--size', type=sizetype, default=0)
+
+ # --size and --fixed-size cannot be specified together; options
+ # ----extra-space and --overhead-factor should also raise a parser
+ # --error, but since nesting mutually exclusive groups does not work,
+ # ----extra-space/--overhead-factor are handled later
+ sizeexcl = part.add_mutually_exclusive_group()
+ sizeexcl.add_argument('--size', type=sizetype, default=0)
+ sizeexcl.add_argument('--fixed-size', type=sizetype, default=0)
+
part.add_argument('--source')
part.add_argument('--sourceparams')
part.add_argument('--system-id', type=systemidtype)
@@ -170,11 +181,33 @@ class KickStart():
lineno += 1
if line and line[0] != '#':
try:
- parsed = parser.parse_args(shlex.split(line))
+ line_args = shlex.split(line)
+ parsed = parser.parse_args(line_args)
except ArgumentError as err:
raise KickStartError('%s:%d: %s' % \
(confpath, lineno, err))
if line.startswith('part'):
+ # using ArgumentParser one cannot easily tell if option
+ # was passed as argument, if said option has a default
+ # value; --overhead-factor/--extra-space cannot be used
+ # with --fixed-size, so at least detect when these were
+ # passed with non-0 values ...
+ if parsed.fixed_size:
+ if parsed.overhead_factor or parsed.extra_space:
+ err = "%s:%d: arguments --overhead-factor and --extra-space not "\
+ "allowed with argument --fixed-size" \
+ % (confpath, lineno)
+ raise KickStartError(err)
+ else:
+ # ... and provide defaults if not using
+ # --fixed-size iff given option was not used
+ # (again, one cannot tell if option was passed but
+ # with value equal to 0)
+ if '--overhead-factor' not in line_args:
+ parsed.overhead_factor = self.DEFAULT_OVERHEAD_FACTOR
+ if '--extra-space' not in line_args:
+ parsed.extra_space = self.DEFAULT_EXTRA_SPACE
+
self.partnum += 1
self.partitions.append(Partition(parsed, self.partnum))
elif line.startswith('include'):