lddtree: add --skip-missing

Allow explicitly ignoring missing files.
$ lddtree --root=/build/$BOARD --copy-to-tree=. --copy-non-elfs /sbin/lvm /sbin/lvmdump
lddtree: warning: /build/brya/sbin/lvm: did not match any paths
$ echo $?
1

lddtree --root=/build/$BOARD --copy-to-tree=. --copy-non-elfs --skip-missing /sbin/lvm /sbin/lvmdump
lddtree: warning: /build/brya/sbin/lvm: did not match any paths
$ echo $?
0

Signed-off-by: Jae Hoon Kim <kimjae@chromium.org>
Signed-off-by: Mike Frysinger <vapier@chromiium.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/lddtree.py b/lddtree.py
index ef8a9b2..3afcfac 100755
--- a/lddtree.py
+++ b/lddtree.py
@@ -702,6 +702,9 @@ def GetParser():
     parser.add_argument('--skip-non-elfs',
                         action='store_true', default=False,
                         help='Skip plain (non-ELF) files instead of warning')
+    parser.add_argument('--skip-missing',
+                        action='store_true', default=False,
+                        help='Skip missing files instead of failing')
     parser.add_argument('-V', '--version',
                         action='version',
                         version='lddtree by Mike Frysinger <vapier@gentoo.org>',
@@ -844,7 +847,8 @@ def main(argv):
                 _ActionCopy(options, elf)
 
         if not matched:
-            ret = 1
+            if not options.skip_missing:
+                ret = 1
             warn('%s: did not match any paths' % (path,))
 
     return ret