Allow specifying a build arch

Default x86_64

action.yaml

@@ -11,6 +11,10 @@ inputs:
   fedora_release:
     description: The fedora release version to build for
     required: true
+  build_arch:
+    description: Build architecture, default x86_64
+    required: false
+    default: x86_64
   specdir:
     description: A directory to switch to before trying to find a spec file.
     required: false
@@ -41,8 +45,8 @@ runs:
         EOF
 
         rpmautospec process-distgit $SPECFILE $SPECFILE
-        rpmbuild -bs --undefine=_disable_source_fetch --define "_sourcedir $PWD" --define "_topdir $PWD" --define "_rpmdir $PWD" $SPECFILE
-        copr-cli --config config/copr build --chroot fedora-$(echo "${{ inputs.fedora_release }}" | sed 's/^f//' )-x86_64 ${{ inputs.copr_project }} SRPMS/*
+        rpmbuild -bs --target=${{ inputs.build_arch }} --define="_disable_source_fetch 0" --define "_sourcedir $PWD" --define "_topdir $PWD" --define "_rpmdir $PWD" $SPECFILE
+        copr-cli --config config/copr build --chroot fedora-$(echo "${{ inputs.fedora_release }}" | sed 's/^f//' )-${{ inputs.build_arch }} ${{ inputs.copr_project }} SRPMS/*
 branding:
   icon: "package"
   color: "green"