[ISV-5448] FBC Catalog changes include Operators in the PR Title. (#752)

Author: BorekZnovustvoritel

ansible/roles/operator-pipeline/templates/openshift/pipelines/operator-hosted-pipeline.yml

@@ -385,6 +385,8 @@ spec:
           value: "$(tasks.detect-changes.results.added_bundle)"
         - name: affected_catalogs
           value: "$(tasks.detect-changes.results.affected_catalogs)"
+        - name: affected_catalog_operators
+          value: "$(tasks.detect-changes.results.affected_catalog_operators)"
         - name: github_token_secret_name
           value: "$(params.github_token_secret_name)"
         - name: github_token_secret_key

ansible/roles/operator-pipeline/templates/openshift/tasks/set-github-pr-title.yaml

@@ -20,6 +20,9 @@ spec:
     - name: affected_catalogs
       description: Comma separated list of updated catalogs
 
+    - name: affected_catalog_operators
+      description: Comma separated list of operators inside all catalogs
+
     - name: github_token_secret_name
       description: The name of the Kubernetes Secret that contains the GitHub token.
       default: github
@@ -52,8 +55,45 @@ spec:
           TITLE="operator $(params.operator_name) ($(params.bundle_version))"
 
         elif [[ "$(params.affected_catalogs)" != "" ]]; then
-          # Update of catalogs only
-          TITLE="Catalog update [$(params.affected_catalogs)]"
+          # Update of catalogs only, can get quite long
+
+          # Limit that is shown by GH API
+          MAX_TITLE_LEN=256
+
+          TITLE_BEGINNING="Catalog update ["
+          TITLE_ENDING="] [$(params.affected_catalogs)]"
+
+          # Catalog Operators are in the following format:
+          # catalogVersion1/operator1,catalogVersion2/operator1,...
+          # We need to trim Catalog version from all operators in 5 steps:
+          # Step 1: split operators
+          IFS=',' read -ra RAW_OPERATOR_ARR <<< "$(params.affected_catalog_operators)"
+          unset IFS
+          OPERATOR_ARR=()
+
+          # Step 2: Remove everything before the first '/' in each operator
+          for OPERATOR in "${RAW_OPERATOR_ARR[@]}"; do
+            OPERATOR_ARR+=("${OPERATOR#*/}")
+          done
+
+          # Step 3: dedup the array
+          IFS=' ' read -ra OPERATOR_ARR <<< "$(echo "${OPERATOR_ARR[@]}" | tr ' ' '\n' | sort -u | tr '\n' ' ')"
+          unset IFS
+
+          # Step 4: Join operator names back
+          TITLE_MIDDLE=$(printf ",%s" "${OPERATOR_ARR[@]}")
+
+          # Step 5: Remove the heading ','
+          TITLE_MIDDLE="${TITLE_MIDDLE:1}"
+
+          FREE_CAPACITY=$(( "${MAX_TITLE_LEN}" - $(echo "${TITLE_BEGINNING}" | wc -m) - $( echo "${TITLE_ENDING}" | wc -m) ))
+
+          # Shorten the middle part if it is too long
+          if [[ $(echo "${TITLE_MIDDLE}" | wc -m) -gt "${FREE_CAPACITY}" ]]; then
+            CUT_TO_LENGTH=$(( "${FREE_CAPACITY}" - 3 ))
+            TITLE_MIDDLE="${TITLE_MIDDLE::${CUT_TO_LENGTH}}..."
+          fi
+          TITLE="${TITLE_BEGINNING}${TITLE_MIDDLE}${TITLE_ENDING}"
 
         else
           echo "No bundles nor catalogs have been added/updated"