Enforce color for triage/backport labels

src/main/java/io/quarkus/bot/SetTriageBackportLabelColor.java

@@ -0,0 +1,46 @@
+package io.quarkus.bot;
+
+import java.io.IOException;
+
+import jakarta.inject.Inject;
+
+import org.jboss.logging.Logger;
+import org.kohsuke.github.GHEventPayload;
+import org.kohsuke.github.GHLabel;
+
+import io.quarkiverse.githubapp.ConfigFile;
+import io.quarkiverse.githubapp.event.Label;
+import io.quarkus.bot.config.Feature;
+import io.quarkus.bot.config.QuarkusGitHubBotConfig;
+import io.quarkus.bot.config.QuarkusGitHubBotConfigFile;
+import io.quarkus.bot.util.Labels;
+
+public class SetTriageBackportLabelColor {
+
+    private static final Logger LOG = Logger.getLogger(SetTriageBackportLabelColor.class);
+
+    @Inject
+    QuarkusGitHubBotConfig quarkusBotConfig;
+
+    private static final String TRIAGE_BACKPORT_LABEL_COLOR = "7fe8cd";
+
+    void setAreaLabelColor(@Label.Created GHEventPayload.Label labelPayload,
+            @ConfigFile("quarkus-github-bot.yml") QuarkusGitHubBotConfigFile quarkusBotConfigFile) throws IOException {
+        if (!Feature.SET_TRIAGE_BACKPORT_LABEL_COLOR.isEnabled(quarkusBotConfigFile)) {
+            return;
+        }
+
+        GHLabel label = labelPayload.getLabel();
+
+        if (!label.getName().startsWith(Labels.TRIAGE_BACKPORT_PREFIX)
+                || TRIAGE_BACKPORT_LABEL_COLOR.equalsIgnoreCase(label.getColor())) {
+            return;
+        }
+
+        if (!quarkusBotConfig.isDryRun()) {
+            label.set().color(TRIAGE_BACKPORT_LABEL_COLOR);
+        } else {
+            LOG.info("Label " + label.getName() + " - Set color: #" + TRIAGE_BACKPORT_LABEL_COLOR);
+        }
+    }
+}

src/main/java/io/quarkus/bot/config/Feature.java

@@ -9,6 +9,7 @@ public enum Feature {
     NOTIFY_QE,
     QUARKUS_REPOSITORY_WORKFLOW,
     SET_AREA_LABEL_COLOR,
+    SET_TRIAGE_BACKPORT_LABEL_COLOR,
     TRIAGE_ISSUES_AND_PULL_REQUESTS,
     TRIAGE_DISCUSSIONS,
     PUSH_TO_PROJECTS,