license.bbclass: skip license checking if the package contains no file

If the package doesn't contain any file, then the license isn't relevant
as far as the final image is concerned. So we skip the license checking
in license_create_manifest if such case.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/license.bbclass b/meta/classes/license.bbclass
index 95e01213c0a8df66738bc4d5145376daaeb9d228..73a0e9727e75d188c0fec73fa9c5bfb27e9be0d2 100644 (file)
--- a/meta/classes/license.bbclass
+++ b/meta/classes/license.bbclass
@@ -50,6 +50,7 @@ license_create_manifest() {
                pkged_pv="$(sed -n 's/^PV: //p' ${filename})"
                pkged_name="$(basename $(readlink ${filename}))"
                pkged_lic="$(sed -n "/^LICENSE_${pkged_name}: /{ s/^LICENSE_${pkged_name}: //; p }" ${filename})"
+               pkged_size="$(sed -n "/^PKGSIZE_${pkged_name}: /{ s/^PKGSIZE_${pkged_name}: //; p }" ${filename})"
                if [ -z "${pkged_lic}" ]; then
                        # fallback checking value of LICENSE
                        pkged_lic="$(sed -n "/^LICENSE: /{ s/^LICENSE: //; p }" ${filename})"
@@ -61,6 +62,13 @@ license_create_manifest() {
                echo "LICENSE:" ${pkged_lic} >> ${LICENSE_MANIFEST}
                echo "" >> ${LICENSE_MANIFEST}
 
+               # If the package doesn't contain any file, that is, its size is 0, the license
+               # isn't relevant as far as the final image is concerned. So doing license check
+               # doesn't make much sense, skip it.
+               if [ "$pkged_size" = "0" ]; then
+                       continue
+               fi
+
                lics="$(echo ${pkged_lic} | sed "s/[|&()*]/ /g" | sed "s/  */ /g" )"
                for lic in ${lics}; do
                        # to reference a license file trim trailing + symbol