Merge branch 'reuse-regressions-ci' into 'main'

ci: Add a CI check for REUSE-compliant licensing/copyright headers

See merge request GNOME/glib!3051

.gitlab-ci.yml

@@ -13,7 +13,7 @@ cache:
 variables:
   FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/glib/fedora:v19"
   COVERITY_IMAGE: "registry.gitlab.gnome.org/gnome/glib/coverity:v7"
-  DEBIAN_IMAGE: "registry.gitlab.gnome.org/gnome/glib/debian-stable:v13"
+  DEBIAN_IMAGE: "registry.gitlab.gnome.org/gnome/glib/debian-stable:v14"
   MINGW_IMAGE: "registry.gitlab.gnome.org/gnome/glib/mingw:v9"
   MESON_TEST_TIMEOUT_MULTIPLIER: 4
   G_MESSAGES_DEBUG: all
@@ -49,7 +49,7 @@ variables:
     - bash .gitlab-ci/show-execution-environment.sh
     - cp -r $HOME/subprojects/* subprojects/
 
-style-check-diff:
+style-check-advisory:
   extends: .only-default
   image: $DEBIAN_IMAGE
   stage: style-check
@@ -72,6 +72,17 @@ sh-and-py-check:
       - "**/*.py"
       - "**/*.sh"
 
+style-check-mandatory:
+  extends: .only-default
+  image: $DEBIAN_IMAGE
+  stage: style-check
+  allow_failure: false
+  script:
+    - .gitlab-ci/run-reuse.sh
+  variables:
+    # The submodules are needed for `reuse lint` to work properly
+    GIT_SUBMODULE_STRATEGY: "normal"
+
 fedora-x86_64:
   extends:
     - .build-linux
@@ -608,7 +619,7 @@ pages:
   stage: deploy
   only:
     - main
-  needs: ['coverage', 'style-check-diff']
+  needs: ['coverage', 'style-check-advisory']
   script:
     - mv _coverage/ public/
   artifacts: