[tool] Do not add reviewer to patch for unmaintained

Unmainained branches are not maintained by project teams, thus,
they don't need PTL or release liaison approval. So let's not
spam them.

These patches are usually the patches where we move an unmaintained
branch to End of Life. As we don't release anything out of a branch
in unmaintained state.

Change-Id: Ifac8392296a738d462070bd2bbf9f97c597369b6
Signed-off-by: Előd Illés <elod.illes@est.tech>

tools/add_reviewers.sh

@@ -26,6 +26,15 @@ function usage {
     echo "Example: $0 ussuri-c-w-i # Adds reviewers for a specific topic"
 }
 
+function get_series_from_path {
+    local path=$1
+    if [[ $path =~ ^deliverables/([^/]+)/.*yaml$ ]]; then
+        series="${BASH_REMATCH[1]}"
+    else
+        series=""
+    fi
+}
+
 # Validate topic was provided
 if [ $# -gt 1 ]; then
     usage
@@ -45,6 +54,8 @@ if [[ -z "$VIRTUAL_ENV" ]]; then
     source ./.tox/venv/bin/activate
 fi
 
+UNMAINTAINED=$(list-eom-series)
+
 # Make sure we have a gerrit user for authenticated commands
 GERRIT_ID=${GERRIT_USER}
 if [[ -z "$GERRIT_ID" ]]; then
@@ -78,6 +89,10 @@ for review in $reviews; do
 
     # Extract the owning teams for each deliverable in this patch
     for file in $deliverable_files; do
+        get_series_from_path $file
+        if [[ $UNMAINTAINED =~ $series ]]; then
+            continue
+        fi
         team=$(grep team $file | sed 's/team: //g')
         if [[ "$team" == "$last_team" ]]; then
             continue