sstate: fix touching files inside pseudo

running the 'id' command inside the sstate_create_package
function shows that this funcion run inside the pseudo:

 uid=0(root) gid=0(root) groups=0(root)

The check for touch files [ ! -w ${SSTATE_PKG} ]
will always return true and the touch can fail
when the real user don't have permission or
in readonly filesystem.

As the documentation refers, the file test operator "-w"
check if the file has write permission (for the user running the test).

We can avoid this test running the touch and mask any return errors
that we have.

(From OE-Core rev: 590de1dd89cfd5f0ca7395880ba88b27ee35470d)

Signed-off-by: Jose Quaresma <quaresma.jose@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit f6e7445c94443544e92fda97a017ce93393c5f84)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index 2ff0d6850c..a2496dce2b 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -796,7 +796,7 @@ sstate_task_postfunc[dirs] = "${WORKDIR}"
 sstate_create_package () {
         # Exit early if it already exists
         if [ -e ${SSTATE_PKG} ]; then
-                [ ! -w ${SSTATE_PKG} ] || touch ${SSTATE_PKG}
+                touch ${SSTATE_PKG} 2>/dev/null || true
                 return
         fi
 
@@ -830,7 +830,7 @@ sstate_create_package () {
         else
                 rm $TFILE
         fi
-        [ ! -w ${SSTATE_PKG} ] || touch ${SSTATE_PKG}
+        touch ${SSTATE_PKG} 2>/dev/null || true
 }
 
 python sstate_sign_package () {