[OE-core] [PATCH 1/9] gen-lockedsig-cache: Allow cross-filesystem copies.

[Paul Eggleton]

From: Randy Witt <randy.e.witt at linux.intel.com>

Since this previously always tried to use hardlinks you couldn't have
the source and destination be on different devices. This change allows
for that and also prevents failure in situations where the files already
existed.

Signed-off-by: Randy Witt <randy.e.witt at linux.intel.com>
---
 scripts/gen-lockedsig-cache | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/scripts/gen-lockedsig-cache b/scripts/gen-lockedsig-cache
index dfb282e..c93b2c0 100755
--- a/scripts/gen-lockedsig-cache
+++ b/scripts/gen-lockedsig-cache
@@ -35,6 +35,12 @@ for s in sigs:
 
 for f in files:
     dst = f.replace(sys.argv[2], sys.argv[3])
-    mkdir(os.path.dirname(dst))
-    os.link(f, dst)
+    destdir = os.path.dirname(dst)
+    mkdir(destdir)
 
+    if os.path.exists(dst):
+        os.remove(dst)
+    if (os.stat(f).st_dev == os.stat(destdir).st_dev):
+        os.link(f, dst)
+    else:
+        shutil.copyfile(f, dst)
-- 
1.9.3