Fedora CI: Test that no unexpected dependency was added

tests/no-new-dependency/requires.txt

@@ -0,0 +1,11 @@
+coreutils
+dwz
+rpm
+zip
+/usr/bin/bash
+/usr/bin/file
+/usr/bin/find
+/usr/bin/grep
+/usr/bin/sed
+/usr/bin/sh
+/usr/bin/xargs

tests/no-new-dependency/runtest.sh

@@ -0,0 +1,11 @@
+#!/bin/bash -ex
+
+# we diff most of the dependencies against our list in requires.txt
+# generally, a new dependency is bad, for exceptional cases, we can add it to the list together with the change
+# we intentionally grep out:
+#  -srpm-macros and -rpm-macros
+#  rpmlib(...)
+#  conditional dependencies (they contain if)
+# at the end, we strip the versions with cut
+diff -u <(cat $(dirname $0)/requires.txt | sort | uniq) \
+        <(rpm -q --requires redhat-rpm-config | grep -Ev -- '-s?rpm-macros(\s|$)|^rpmlib\(|\sif\s' | cut -d' ' -f1 | sort | uniq)

tests/tests.yml

@@ -31,6 +31,9 @@
       - gcc
       - gcc-c++
       - annobin-annocheck
+      # no-new-dependency
+      - diffutils
+      - grep
     repositories:
       - repo: https://src.fedoraproject.org/tests/clang.git
         dest: clang
@@ -40,3 +43,4 @@
           run: "dnf -y build-dep {{ tenv_workdir }}/redhat-rpm-config.spec && rpmbuild --define '_sourcedir {{ tenv_workdir }}' -ba {{ tenv_workdir }}/redhat-rpm-config.spec"
       - clang/fedora-flags
       - gcc-fedora-flags
+      - no-new-dependency