add rpm generation code

scripts/drone.sh

@@ -4,6 +4,7 @@
 export CGO_ENABLED=0
 
 package_name=vctp
+package=./
 commit=$(git rev-parse HEAD)
 buildtime=$(date +%Y-%m-%dT%T%z)
 #Extract the version from yml
@@ -16,6 +17,7 @@ echo Building::
 echo  - Version $package_version
 echo  - Commit $commit
 echo  - Build Time $buildtime
+mkdir -p build
 for platform in "${platforms[@]}"
 do
    platform_split=(${platform//\// })
@@ -38,6 +40,6 @@ do
    #sha256sum build/${output_name}.gz > build/${output_name}_checksum.txt
 done
 
-#nfpm package --config $package_name.yml --packager rpm --target build/
+nfpm package --config $package_name.yml --packager rpm --target build/
 
 ls -lah build