sign_rpm.bbclass: do not set/use RPM_GPG_PUBKEY

This is entirely unnecessary (we can ask the signer backend to export the
key to a file when needed), and was causing confusing selftest failures
due to the variable being set from two different places.

[YOCTO #11191]

(From OE-Core rev: 74ea979044368dc28c24325e7e77471b70aa8fe8)

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/meta/lib/oe/package_manager.py b/meta/lib/oe/package_manager.py
index 2a4df61998..8b2b33106e 100644
--- a/meta/lib/oe/package_manager.py
+++ b/meta/lib/oe/package_manager.py
@@ -520,7 +520,9 @@ class RpmPM(PackageManager):
             open(platformconfdir + "macros", 'a').write("%_prefer_color 7")
 
         if self.d.getVar('RPM_SIGN_PACKAGES') == '1':
-            pubkey_path = self.d.getVar('RPM_GPG_PUBKEY')
+            signer = get_signer(self.d, self.d.getVar('RPM_GPG_BACKEND'))
+            pubkey_path = oe.path.join(self.d.getVar('B'), 'rpm-key')
+            signer.export_pubkey(pubkey_path, self.d.getVar('RPM_GPG_NAME'))
             rpm_bin = bb.utils.which(os.getenv('PATH'), "rpmkeys")
             cmd = [rpm_bin, '--root=%s' % self.target_rootfs, '--import', pubkey_path]
             try: