Transition from only/except to rules

This MR replaces only/except conditions with rules. This change enables rpmci users to define more specific conditions for job execution (e.g. set koji_scratch as auto job for protected branches and as manual job for feature branches, thus allowing koji specific variables to be protected).

Additionally:

From Gitlab Keyword Reference:

only and except are not being actively developed. rules is the preferred keyword to control when to add jobs to pipelines.

Rules offer more granularity and flexibility comparing to only/except. However, rules and only/except cannot be mixed:

rules replaces only/except and they can’t be used together in the same job. If you configure one job to use both keywords, the GitLab returns a key may not be used with rules error.

Rules are defined as YAML arrays so they cannot be merged (in case of extending jobs). However, there are workarounds for this:

• Using native YAML anchors (https://stackoverflow.com/a/67012275)

Note: For testing, included yml files in rpm-ci.yml should be replaced with the corresponding ones for the feature branch instead of the master ones

dist_6.yml

@@ -12,9 +12,8 @@ build_srpm6:
     IMAGE: $IMAGE_6
     DIST: $DIST_6
     _KOJI_OS: 6
-  only:
-    variables:
-      - $BUILD_6 == 'True'
+  rules:
+    - if: '$BUILD_6 == "True"'
 
 build_rpm6:
   extends:
@@ -24,17 +23,16 @@ build_rpm6:
     IMAGE: $IMAGE_6
     DIST: $DIST_6
     _KOJI_OS: 6
-  only:
-    variables:
-      - $BUILD_6 == 'True'
+  rules:
+    - if: '$BUILD_6 == "True"'
 
 test_rpmlint6:
   extends: .test_rpmlint
   variables:
     IMAGE: $IMAGE_6
-  only:
-    variables:
-      - $BUILD_8s != 'True' && $BUILD_8 != 'True' && $BUILD_7 != 'True' && $BUILD_6 == 'True'
+  rules:
+    - if: '$BUILD_8s != "True" && $BUILD_8 != "True" && $BUILD_7 != "True" && $BUILD_6 == "True"'
+
 
 test_install6:
   extends: .test_install
@@ -44,9 +42,8 @@ test_install6:
     IMAGE: $IMAGE_6
     DIST: $DIST_6
     _KOJI_OS: 6
-  only:
-    variables:
-      - $SKIP_KOJI_DOWNLOAD == 'False' && $BUILD_6 == 'True'
+  rules:
+    - if: '$SKIP_KOJI_DOWNLOAD == "False" && $BUILD_6 == "True"'
 
 koji_scratch6:
   extends: .koji_scratch
@@ -55,9 +52,8 @@ koji_scratch6:
   variables:
     DIST: $DIST_6
     _KOJI_OS: 6
-  only:
-    variables:
-      - $BUILD_6 == 'True'
+  rules:
+    - if: '$BUILD_6 == "True"'
 
 koji_build6:
   extends: .koji_build
@@ -66,9 +62,8 @@ koji_build6:
   variables:
     DIST: $DIST_6
     _KOJI_OS: 6
-  only:
-    variables:
-      - $BUILD_6 == 'True'
+  rules:
+    - if: '$BUILD_6 == "True"'
 
 koji_tag_qa6:
   extends: .tag_qa
@@ -80,9 +75,8 @@ koji_tag_qa6:
   variables:
     DIST: $DIST_6
     _KOJI_OS: 6
-  only:
-    variables:
-      - $BUILD_6 == 'True'
+  rules:
+    - if: '$BUILD_6 == "True"'
 
 koji_tag_stable6:
   extends: .tag_stable
@@ -95,6 +89,5 @@ koji_tag_stable6:
   variables:
     DIST: $DIST_6
     _KOJI_OS: 6
-  only:
-    variables:
-      - $BUILD_6 == 'True'
+  rules:
+    - if: '$BUILD_6 == "True"'