sstate.bbclass: Check file ownership before doing 'touch -a'

In contrast to 'touching' a file without parameters 'touch -a' can only be
performed by the file owner. In case of a shared sstate-cache served
locally (e.g. over NFS),  where the user running bitbake is not the
owner of sstate-cache files, even if he has write access on group level,
the sstate_unpack_package task will fail.
Checking if the file is owned by the user before attempting to run
'touch -a' on it solves this.

(From OE-Core rev: 8e7bb01564d5b06bcbda402cf4d29d7a0ff170c5)

Signed-off-by: Norman Stetter <norman.stetter@garz-fricke.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit f1554e8bd40c640fd58daac18ecf7b458e754109)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index 375196ef21..66a96a7603 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -847,7 +847,7 @@ python sstate_report_unihash() {
 sstate_unpack_package () {
         tar -xvzf ${SSTATE_PKG}
         # update .siginfo atime on local/NFS mirror
-        [ -w ${SSTATE_PKG}.siginfo ] && [ -h ${SSTATE_PKG}.siginfo ] && touch -a ${SSTATE_PKG}.siginfo
+        [ -O ${SSTATE_PKG}.siginfo ] && [ -w ${SSTATE_PKG}.siginfo ] && [ -h ${SSTATE_PKG}.siginfo ] && touch -a ${SSTATE_PKG}.siginfo
         # Use "! -w ||" to return true for read only files
         [ ! -w ${SSTATE_PKG} ] || touch --no-dereference ${SSTATE_PKG}
         [ ! -w ${SSTATE_PKG}.sig ] || [ ! -e ${SSTATE_PKG}.sig ] || touch --no-dereference ${SSTATE_PKG}.sig